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Conditionally adding RTEMS_ and rtems_ prefixes.

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This commit is contained in:
Joel Sherrill
1998-03-27 13:24:52 +00:00
parent 4fa4ea6512
commit f331481c9d
17 changed files with 554 additions and 554 deletions
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30
doc/user/dpmem.t
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@@ -30,11 +30,11 @@ representations for multiple dual-ported memory areas (DPMA).
The directives provided by the dual-ported memory manager are: The directives provided by the dual-ported memory manager are:
@itemize @bullet @itemize @bullet
@item @code{port_create} - Create a port @item @code{@value{DIRPREFIX}port_create} - Create a port
@item @code{port_ident} - Get ID of a port @item @code{@value{DIRPREFIX}port_ident} - Get ID of a port
@item @code{port_delete} - Delete a port @item @code{@value{DIRPREFIX}port_delete} - Delete a port
@item @code{port_external_to_internal} - Convert external to internal address @item @code{@value{DIRPREFIX}port_external_to_internal} - Convert external to internal address
@item @code{port_internal_to_external} - Convert internal to external address @item @code{@value{DIRPREFIX}port_internal_to_external} - Convert internal to external address
@end itemize @end itemize
@ifinfo @ifinfo
@@ -175,10 +175,10 @@ procedure Port_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - port created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - port created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{INVALID_ADDRESS} - address not on four byte boundary@* @code{@value{RPREFIX}INVALID_ADDRESS} - address not on four byte boundary@*
@code{TOO_MANY} - too many DP memory areas created @code{@value{RPREFIX}TOO_MANY} - too many DP memory areas created
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -229,8 +229,8 @@ procedure Port_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - port identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - port identified successfully@*
@code{INVALID_NAME} - port name not found @code{@value{RPREFIX}INVALID_NAME} - port name not found
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -272,8 +272,8 @@ procedure Port_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - port deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - port deleted successfully@*
@code{INVALID_ID} - invalid port id @code{@value{RPREFIX}INVALID_ID} - invalid port id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -320,7 +320,7 @@ procedure Port_External_To_Internal (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - always successful @code{@value{RPREFIX}SUCCESSFUL} - always successful
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -367,7 +367,7 @@ procedure Port_Internal_To_External (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - always successful @code{@value{RPREFIX}SUCCESSFUL} - always successful
@subheading DESCRIPTION: @subheading DESCRIPTION:

64
doc/user/event.t
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@@ -29,8 +29,8 @@ of intertask communication and synchronization. The directives
provided by the event manager are: provided by the event manager are:
@itemize @bullet @itemize @bullet
@item @code{event_send} - Send event set to a task @item @code{@value{DIRPREFIX}event_send} - Send event set to a task
@item @code{event_receive} - Receive event condition @item @code{@value{DIRPREFIX}event_receive} - Receive event condition
@end itemize @end itemize
@ifinfo @ifinfo
@@ -80,9 +80,9 @@ not received. An event condition is used to specify the events
which the task desires to receive and the algorithm which will which the task desires to receive and the algorithm which will
be used to determine when the request is satisfied. An event be used to determine when the request is satisfied. An event
condition is satisfied based upon one of two algorithms which condition is satisfied based upon one of two algorithms which
are selected by the user. The @code{EVENT_ANY} algorithm states that are selected by the user. The @code{@value{RPREFIX}EVENT_ANY} algorithm states that
an event condition is satisfied when at least a single requested an event condition is satisfied when at least a single requested
event is posted. The @code{EVENT_ALL} algorithm states that an event event is posted. The @code{@value{RPREFIX}EVENT_ALL} algorithm states that an event
condition is satisfied when every requested event is posted. condition is satisfied when every requested event is posted.
@ifinfo @ifinfo
@@ -91,15 +91,15 @@ condition is satisfied when every requested event is posted.
@subsection Building an Event Set or Condition @subsection Building an Event Set or Condition
An event set or condition is built by a bitwise OR of An event set or condition is built by a bitwise OR of
the desired events. The set of valid events is @code{EVENT_0} through the desired events. The set of valid events is @code{@value{RPREFIX}EVENT_0} through
@code{EVENT_31}. If an event is not explicitly specified in the set or @code{@value{RPREFIX}EVENT_31}. If an event is not explicitly specified in the set or
condition, then it is not present. Events are specifically condition, then it is not present. Events are specifically
designed to be mutually exclusive, therefore bitwise OR and designed to be mutually exclusive, therefore bitwise OR and
addition operations are equivalent as long as each event appears addition operations are equivalent as long as each event appears
exactly once in the event set list. exactly once in the event set list.
For example, when sending the event set consisting of For example, when sending the event set consisting of
@code{EVENT_6}, @code{EVENT_15}, and @code{EVENT_31}, @code{@value{RPREFIX}EVENT_6}, @code{@value{RPREFIX}EVENT_15}, and @code{@value{RPREFIX}EVENT_31},
the event parameter to the event_send directive should be the event parameter to the event_send directive should be
@code{@value{RPREFIX}EVENT_6 @value{OR} @code{@value{RPREFIX}EVENT_6 @value{OR}
@value{RPREFIX}EVENT_15 @value{OR} @value{RPREFIX}EVENT_31}. @value{RPREFIX}EVENT_15 @value{OR} @value{RPREFIX}EVENT_31}.
@@ -114,10 +114,10 @@ desired option components. The set of valid options for the
event_receive directive are listed in the following table: event_receive directive are listed in the following table:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for event (default) @item @code{@value{RPREFIX}WAIT} - task will wait for event (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@item @code{EVENT_ALL} - return after all events (default) @item @code{@value{RPREFIX}EVENT_ALL} - return after all events (default)
@item @code{EVENT_ANY} - return after any events @item @code{@value{RPREFIX}EVENT_ANY} - return after any events
@end itemize @end itemize
Option values are specifically designed to be Option values are specifically designed to be
@@ -126,7 +126,7 @@ are equivalent as long as each option appears exactly once in
the component list. An option listed as a default is not the component list. An option listed as a default is not
required to appear in the option list, although it is a good required to appear in the option list, although it is a good
programming practice to specify default options. If all programming practice to specify default options. If all
defaults are desired, the option @code{DEFAULT_OPTIONS} should be defaults are desired, the option @code{@value{RPREFIX}DEFAULT_OPTIONS} should be
specified on this call. specified on this call.
This example demonstrates the option parameter needed This example demonstrates the option parameter needed
@@ -134,8 +134,8 @@ to poll for all events in a particular event condition to
arrive. The option parameter passed to the event_receive arrive. The option parameter passed to the event_receive
directive should be either directive should be either
@code{@value{RPREFIX}EVENT_ALL @value{OR} @value{RPREFIX}NO_WAIT} @code{@value{RPREFIX}EVENT_ALL @value{OR} @value{RPREFIX}NO_WAIT}
or @code{NO_WAIT}. The option parameter can be set to or @code{@value{RPREFIX}NO_WAIT}. The option parameter can be set to
@code{NO_WAIT} because @code{EVENT_ALL} is the @code{@value{RPREFIX}NO_WAIT} because @code{@value{RPREFIX}EVENT_ALL} is the
default condition for event_receive. default condition for event_receive.
@ifinfo @ifinfo
@@ -200,7 +200,7 @@ satisfied, then one of the following situations applies:
@item By default, the calling task will wait forever for the @item By default, the calling task will wait forever for the
event condition to be satisfied. event condition to be satisfied.
@item Specifying the @code{NO_WAIT} option forces an immediate return @item Specifying the @code{@value{RPREFIX}NO_WAIT} option forces an immediate return
with an error status code. with an error status code.
@item Specifying a timeout limits the period the task will @item Specifying a timeout limits the period the task will
@@ -224,11 +224,11 @@ the calling task but the event set is left unaltered.
A task can receive all of the currently pending A task can receive all of the currently pending
events by calling the event_receive directive with a value of events by calling the event_receive directive with a value of
@code{ALL_EVENTS} for the input event condition and @code{@value{RPREFIX}ALL_EVENTS} for the input event condition and
@code{@value{RPREFIX}NO_WAIT @value{OR} @value{RPREFIX}EVENT_ANY} @code{@value{RPREFIX}NO_WAIT @value{OR} @value{RPREFIX}EVENT_ANY}
for the option set. The pending events are returned to the for the option set. The pending events are returned to the
calling task and the event set is cleared. If no events are calling task and the event set is cleared. If no events are
pending then the @code{UNSATISFIED} status code will be returned. pending then the @code{@value{RPREFIX}UNSATISFIED} status code will be returned.
@ifinfo @ifinfo
@node Event Manager Directives, EVENT_SEND - Send event set to a task, Receiving all Pending Events, Event Manager @node Event Manager Directives, EVENT_SEND - Send event set to a task, Receiving all Pending Events, Event Manager
@@ -274,8 +274,8 @@ procedure Event_Send (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - event set sent successfully@* @code{@value{RPREFIX}SUCCESSFUL} - event set sent successfully@*
@code{INVALID_ID} - invalid task id @code{@value{RPREFIX}INVALID_ID} - invalid task id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -289,7 +289,7 @@ events, then the events sent are left pending.
@subheading NOTES: @subheading NOTES:
Specifying @code{SELF} for id results in the event set being Specifying @code{@value{RPREFIX}SELF} for id results in the event set being
sent to the calling task. sent to the calling task.
Identical events sent to a task are not queued. In Identical events sent to a task are not queued. In
@@ -336,19 +336,19 @@ procedure Event_Receive (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - event received successfully@* @code{@value{RPREFIX}SUCCESSFUL} - event received successfully@*
@code{UNSATISFIED} - input event not satisfied (@code{NO_WAIT})@* @code{@value{RPREFIX}UNSATISFIED} - input event not satisfied (@code{@value{RPREFIX}NO_WAIT})@*
@code{TIMEOUT} - timed out waiting for event @code{@value{RPREFIX}TIMEOUT} - timed out waiting for event
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive attempts to receive the event This directive attempts to receive the event
condition specified in event_in. If event_in is set to condition specified in event_in. If event_in is set to
@code{PENDING_EVENTS}, then the current pending events are returned in @code{@value{RPREFIX}PENDING_EVENTS}, then the current pending events are returned in
event_out and left pending. The @code{WAIT} and @code{NO_WAIT} options in the event_out and left pending. The @code{@value{RPREFIX}WAIT} and @code{@value{RPREFIX}NO_WAIT} options in the
option_set parameter are used to specify whether or not the task option_set parameter are used to specify whether or not the task
is willing to wait for the event condition to be satisfied. is willing to wait for the event condition to be satisfied.
@code{EVENT_ANY} and @code{EVENT_ALL} are used in the option_set parameter are @code{@value{RPREFIX}EVENT_ANY} and @code{@value{RPREFIX}EVENT_ALL} are used in the option_set parameter are
used to specify whether a single event or the complete event set used to specify whether a single event or the complete event set
is necessary to satisfy the event condition. The event_out is necessary to satisfy the event condition. The event_out
parameter is returned to the calling task with the value that parameter is returned to the calling task with the value that
@@ -357,13 +357,13 @@ corresponds to the events in event_in that were satisfied.
If pending events satisfy the event condition, then If pending events satisfy the event condition, then
event_out is set to the satisfied events and the pending events event_out is set to the satisfied events and the pending events
in the event condition are cleared. If the event condition is in the event condition are cleared. If the event condition is
not satisfied and @code{NO_WAIT} is specified, then event_out is set to not satisfied and @code{@value{RPREFIX}NO_WAIT} is specified, then event_out is set to
the currently satisfied events. If the calling task chooses to the currently satisfied events. If the calling task chooses to
wait, then it will block waiting for the event condition. wait, then it will block waiting for the event condition.
If the calling task must wait for the event condition If the calling task must wait for the event condition
to be satisfied, then the timeout parameter is used to specify to be satisfied, then the timeout parameter is used to specify
the maximum interval to wait. If it is set to @code{NO_TIMEOUT}, then the maximum interval to wait. If it is set to @code{@value{RPREFIX}NO_TIMEOUT}, then
the calling task will wait forever. the calling task will wait forever.
@subheading NOTES: @subheading NOTES:
@@ -376,10 +376,10 @@ The following event receive option constants are defined by
RTEMS: RTEMS:
@itemize @bullet @itemize @bullet
@item @code{WAIT} task will wait for event (default) @item @code{@value{RPREFIX}WAIT} task will wait for event (default)
@item @code{NO_WAIT} task should not wait @item @code{@value{RPREFIX}NO_WAIT} task should not wait
@item @code{EVENT_ALL} return after all events (default) @item @code{@value{RPREFIX}EVENT_ALL} return after all events (default)
@item @code{EVENT_ANY} return after any events @item @code{@value{RPREFIX}EVENT_ANY} return after any events
@end itemize @end itemize
A clock tick is required to support the functionality of this directive. A clock tick is required to support the functionality of this directive.

2
doc/user/fatal.t
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@@ -29,7 +29,7 @@ irrecoverable errors. The directive provided by the fatal error
manager is: manager is:
@itemize @bullet @itemize @bullet
@item @code{fatal_error_occurred} - Invoke the fatal error handler @item @code{@value{DIRPREFIX}fatal_error_occurred} - Invoke the fatal error handler
@end itemize @end itemize
@ifinfo @ifinfo

8
doc/user/init.t
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@@ -33,10 +33,10 @@ also initializes the interprocessor communications layer. The
directives provided by the initialization manager are: directives provided by the initialization manager are:
@itemize @bullet @itemize @bullet
@item @code{initialize_executive} - Initialize RTEMS @item @code{@value{DIRPREFIX}initialize_executive} - Initialize RTEMS
@item @code{initialize_executive_early} - Initialize RTEMS and do NOT Start Multitasking @item @code{@value{DIRPREFIX}initialize_executive_early} - Initialize RTEMS and do NOT Start Multitasking
@item @code{initialize_executive_late} - Complete Initialization and Start Multitasking @item @code{@value{DIRPREFIX}initialize_executive_late} - Complete Initialization and Start Multitasking
@item @code{shutdown_executive} - Shutdown RTEMS @item @code{@value{DIRPREFIX}shutdown_executive} - Shutdown RTEMS
@end itemize @end itemize
@ifinfo @ifinfo

26
doc/user/intr.t
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@@ -34,11 +34,11 @@ exit from an ISR. The interrupt manager includes the following
directive: directive:
@itemize @bullet @itemize @bullet
@item @code{interrupt_catch} - Establish an ISR @item @code{@value{DIRPREFIX}interrupt_catch} - Establish an ISR
@item @code{interrupt_disable} - Disable Interrupts @item @code{@value{DIRPREFIX}interrupt_disable} - Disable Interrupts
@item @code{interrupt_enable} - Enable Interrupts @item @code{@value{DIRPREFIX}interrupt_enable} - Enable Interrupts
@item @code{interrupt_flash} - Flash Interrupt @item @code{@value{DIRPREFIX}interrupt_flash} - Flash Interrupt
@item @code{interrupt_is_in_progress} - Is an ISR in Progress @item @code{@value{DIRPREFIX}interrupt_is_in_progress} - Is an ISR in Progress
@end itemize @end itemize
@ifinfo @ifinfo
@@ -313,9 +313,9 @@ procedure Interrupt_Catch (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - ISR established successfully@* @code{@value{RPREFIX}SUCCESSFUL} - ISR established successfully@*
@code{INVALID_NUMBER} - illegal vector number@* @code{@value{RPREFIX}INVALID_NUMBER} - illegal vector number@*
@code{INVALID_ADDRESS} - illegal ISR entry point or invalid old_isr_handler @code{@value{RPREFIX}INVALID_ADDRESS} - illegal ISR entry point or invalid old_isr_handler
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -360,7 +360,7 @@ NONE
This directive disables all maskable interrupts and returns This directive disables all maskable interrupts and returns
the previous @code{level}. A later invocation of the the previous @code{level}. A later invocation of the
@code{interrupt_enable} directive should be used to @code{@value{DIRPREFIX}interrupt_enable} directive should be used to
restore the interrupt level. restore the interrupt level.
@subheading NOTES: @subheading NOTES:
@@ -403,9 +403,9 @@ NONE
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive enables maskable interrupts to the @code{level} This directive enables maskable interrupts to the @code{level}
which was returned by a previous call to @code{interrupt_disable}. which was returned by a previous call to @code{@value{DIRPREFIX}interrupt_disable}.
Immediately prior to invoking this directive, maskable interrupts should Immediately prior to invoking this directive, maskable interrupts should
be disabled by a call to @code{interrupt_disable} and will be enabled be disabled by a call to @code{@value{DIRPREFIX}interrupt_disable} and will be enabled
when this directive returns to the caller. when this directive returns to the caller.
@subheading NOTES: @subheading NOTES:
@@ -444,9 +444,9 @@ NONE
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive temporarily enables maskable interrupts to the @code{level} This directive temporarily enables maskable interrupts to the @code{level}
which was returned by a previous call to @code{interrupt_disable}. which was returned by a previous call to @code{@value{DIRPREFIX}interrupt_disable}.
Immediately prior to invoking this directive, maskable interrupts should Immediately prior to invoking this directive, maskable interrupts should
be disabled by a call to @code{interrupt_disable} and will be redisabled be disabled by a call to @code{@value{DIRPREFIX}interrupt_disable} and will be redisabled
when this directive returns to the caller. when this directive returns to the caller.
@subheading NOTES: @subheading NOTES:

50
doc/user/io.t
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@@ -30,14 +30,14 @@ structured methodology for organizing device drivers. The
directives provided by the I/O manager are: directives provided by the I/O manager are:
@itemize @bullet @itemize @bullet
@item @code{io_initialize} - Initialize a device driver @item @code{@value{DIRPREFIX}io_initialize} - Initialize a device driver
@item @code{io_register_name} - Register a device name @item @code{@value{DIRPREFIX}io_register_name} - Register a device name
@item @code{io_lookup_name} - Look up a device name @item @code{@value{DIRPREFIX}io_lookup_name} - Look up a device name
@item @code{io_open} - Open a device @item @code{@value{DIRPREFIX}io_open} - Open a device
@item @code{io_close} - Close a device @item @code{@value{DIRPREFIX}io_close} - Close a device
@item @code{io_read} - Read from a device @item @code{@value{DIRPREFIX}io_read} - Read from a device
@item @code{io_write} - Write to a device @item @code{@value{DIRPREFIX}io_write} - Write to a device
@item @code{io_control} - Special device services @item @code{@value{DIRPREFIX}io_control} - Special device services
@end itemize @end itemize
@@ -79,7 +79,7 @@ entry points:
If the device driver does not support a particular If the device driver does not support a particular
entry point, then that entry in the Configuration Table should entry point, then that entry in the Configuration Table should
be NULL. RTEMS will return @code{SUCCESSFUL} as the executive's and be NULL. RTEMS will return @code{@value{RPREFIX}SUCCESSFUL} as the executive's and
zero (0) as the device driver's return code for these device zero (0) as the device driver's return code for these device
driver entry points. driver entry points.
@@ -298,8 +298,8 @@ procedure IO_Initialize (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -350,8 +350,8 @@ procedure IO_Register_Name (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{TOO_MANY} - too many devices registered @code{@value{RPREFIX}TOO_MANY} - too many devices registered
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -391,8 +391,8 @@ procedure IO_Lookup_Name (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{UNSATISFIED} - name not registered @code{@value{RPREFIX}UNSATISFIED} - name not registered
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -435,8 +435,8 @@ procedure IO_Open (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -482,8 +482,8 @@ procedure IO_Close (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -529,8 +529,8 @@ procedure IO_Read (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -577,8 +577,8 @@ procedure IO_Write (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -625,8 +625,8 @@ procedure IO_Control (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - successfully initialized@* @code{@value{RPREFIX}SUCCESSFUL} - successfully initialized@*
@code{INVALID_NUMBER} - invalid major device number @code{@value{RPREFIX}INVALID_NUMBER} - invalid major device number
@subheading DESCRIPTION: @subheading DESCRIPTION:

2
doc/user/mp.t
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@@ -601,7 +601,7 @@ must be aware of the following:
@item Packets are composed of both RTEMS and application data. @item Packets are composed of both RTEMS and application data.
All RTEMS data is treated as thirty-two (32) bit unsigned All RTEMS data is treated as thirty-two (32) bit unsigned
quantities and is in the first @code{MINIMUM_UNSIGNED32S_TO_CONVERT} quantities and is in the first @code{@value{RPREFIX}MINIMUM_UNSIGNED32S_TO_CONVERT}
thirty-two (32) quantities of the packet. thirty-two (32) quantities of the packet.
@item The RTEMS data component of the packet must be in native @item The RTEMS data component of the packet must be in native

140
doc/user/msg.t
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@@ -29,14 +29,14 @@ synchronization capabilities using RTEMS message queues. The
directives provided by the message manager are: directives provided by the message manager are:
@itemize @bullet @itemize @bullet
@item @code{message_queue_create} - Create a queue @item @code{@value{DIRPREFIX}message_queue_create} - Create a queue
@item @code{message_queue_ident} - Get ID of a queue @item @code{@value{DIRPREFIX}message_queue_ident} - Get ID of a queue
@item @code{message_queue_delete} - Delete a queue @item @code{@value{DIRPREFIX}message_queue_delete} - Delete a queue
@item @code{message_queue_send} - Put message at rear of a queue @item @code{@value{DIRPREFIX}message_queue_send} - Put message at rear of a queue
@item @code{message_queue_urgent} - Put message at front of a queue @item @code{@value{DIRPREFIX}message_queue_urgent} - Put message at front of a queue
@item @code{message_queue_broadcast} - Broadcast N messages to a queue @item @code{@value{DIRPREFIX}message_queue_broadcast} - Broadcast N messages to a queue
@item @code{message_queue_receive} - Receive message from a queue @item @code{@value{DIRPREFIX}message_queue_receive} - Receive message from a queue
@item @code{message_queue_get_number_pending} - Get number of messages pending on a queue @item @code{@value{DIRPREFIX}message_queue_get_number_pending} - Get number of messages pending on a queue
@item @code{message_queue_flush} - Flush all messages on a queue @item @code{message_queue_flush} - Flush all messages on a queue
@end itemize @end itemize
@@ -92,10 +92,10 @@ of the desired attribute components. The set of valid message
queue attributes is provided in the following table: queue attributes is provided in the following table:
@itemize @bullet @itemize @bullet
@item @code{FIFO} - tasks wait by FIFO (default) @item @code{@value{RPREFIX}FIFO} - tasks wait by FIFO (default)
@item @code{PRIORITY} - tasks wait by priority @item @code{@value{RPREFIX}PRIORITY} - tasks wait by priority
@item @code{LOCAL} - local message queue (default) @item @code{@value{RPREFIX}LOCAL} - local message queue (default)
@item @code{GLOBAL} - global message queue @item @code{@value{RPREFIX}GLOBAL} - global message queue
@end itemize @end itemize
@@ -103,17 +103,17 @@ queue attributes is provided in the following table:
An attribute listed as a default is not required to An attribute listed as a default is not required to
appear in the attribute list, although it is a good programming appear in the attribute list, although it is a good programming
practice to specify default attributes. If all defaults are practice to specify default attributes. If all defaults are
desired, the attribute @code{DEFAULT_ATTRIBUTES} should be specified on desired, the attribute @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} should be specified on
this call. this call.
This example demonstrates the attribute_set parameter This example demonstrates the attribute_set parameter
needed to create a local message queue with the task priority needed to create a local message queue with the task priority
waiting queue discipline. The attribute_set parameter to the waiting queue discipline. The attribute_set parameter to the
message_queue_create directive could be either message_queue_create directive could be either
@code{PRIORITY} or @code{@value{RPREFIX}PRIORITY} or
@code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}PRIORITY}. @code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}PRIORITY}.
The attribute_set parameter can be set to @code{PRIORITY} The attribute_set parameter can be set to @code{@value{RPREFIX}PRIORITY}
because @code{LOCAL} is the default for all created message queues. If because @code{@value{RPREFIX}LOCAL} is the default for all created message queues. If
a similar message queue were to be known globally, then the a similar message queue were to be known globally, then the
attribute_set parameter would be attribute_set parameter would be
@code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}PRIORITY}. @code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}PRIORITY}.
@@ -129,19 +129,19 @@ message_queue_receive directive are listed in the following
table: table:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for a message (default) @item @code{@value{RPREFIX}WAIT} - task will wait for a message (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
An option listed as a default is not required to An option listed as a default is not required to
appear in the option OR list, although it is a good programming appear in the option OR list, although it is a good programming
practice to specify default options. If all defaults are practice to specify default options. If all defaults are
desired, the option @code{DEFAULT_OPTIONS} should be specified on this desired, the option @code{@value{RPREFIX}DEFAULT_OPTIONS} should be specified on this
call. call.
This example demonstrates the option parameter needed This example demonstrates the option parameter needed
to poll for a message to arrive. The option parameter passed to to poll for a message to arrive. The option parameter passed to
the message_queue_receive directive should be @code{NO_WAIT}. the message_queue_receive directive should be @code{@value{RPREFIX}NO_WAIT}.
@ifinfo @ifinfo
@node Message Manager Operations, Creating a Message Queue, Building a MESSAGE_QUEUE_RECEIVE Option Set, Message Manager @node Message Manager Operations, Creating a Message Queue, Building a MESSAGE_QUEUE_RECEIVE Option Set, Message Manager
@@ -209,7 +209,7 @@ applies:
@item By default, the calling task will wait forever for the @item By default, the calling task will wait forever for the
message to arrive. message to arrive.
@item Specifying the @code{NO_WAIT} option forces an immediate return @item Specifying the @code{@value{RPREFIX}NO_WAIT} option forces an immediate return
with an error status code. with an error status code.
@item Specifying a timeout limits the period the task will @item Specifying a timeout limits the period the task will
@@ -326,13 +326,13 @@ procedure Message_Queue_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - queue created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - queue created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{INVALID_NUMBER} - invalid message count@* @code{@value{RPREFIX}INVALID_NUMBER} - invalid message count@*
@code{INVALID_SIZE} - invalid message size@* @code{@value{RPREFIX}INVALID_SIZE} - invalid message size@*
@code{TOO_MANY} - too many queues created@* @code{@value{RPREFIX}TOO_MANY} - too many queues created@*
@code{MP_NOT_CONFIGURED} - multiprocessing not configured@* @code{@value{RPREFIX}MP_NOT_CONFIGURED} - multiprocessing not configured@*
@code{TOO_MANY} - too many global objects @code{@value{RPREFIX}TOO_MANY} - too many global objects
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -344,9 +344,9 @@ for the specified count of messages, each of max_message_size
bytes in length. The RTEMS-assigned queue id, returned in id, bytes in length. The RTEMS-assigned queue id, returned in id,
is used to access the message queue. is used to access the message queue.
Specifying @code{PRIORITY} in attribute_set causes tasks Specifying @code{@value{RPREFIX}PRIORITY} in attribute_set causes tasks
waiting for a message to be serviced according to task priority. waiting for a message to be serviced according to task priority.
When @code{FIFO} is specified, waiting tasks are serviced in First When @code{@value{RPREFIX}FIFO} is specified, waiting tasks are serviced in First
In-First Out order. In-First Out order.
@subheading NOTES: @subheading NOTES:
@@ -358,10 +358,10 @@ The following message queue attribute constants are
defined by RTEMS: defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{FIFO} - tasks wait by FIFO (default) @item @code{@value{RPREFIX}FIFO} - tasks wait by FIFO (default)
@item @code{PRIORITY} - tasks wait by priority @item @code{@value{RPREFIX}PRIORITY} - tasks wait by priority
@item @code{LOCAL} - local message queue (default) @item @code{@value{RPREFIX}LOCAL} - local message queue (default)
@item @code{GLOBAL} - global message queue @item @code{@value{RPREFIX}GLOBAL} - global message queue
@end itemize @end itemize
Message queues should not be made global unless Message queues should not be made global unless
@@ -410,9 +410,9 @@ procedure Message_Queue_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - queue identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - queue identified successfully@*
@code{INVALID_NAME} - queue name not found@* @code{@value{RPREFIX}INVALID_NAME} - queue name not found@*
@code{INVALID_NODE} - invalid node id @code{@value{RPREFIX}INVALID_NODE} - invalid node id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -428,7 +428,7 @@ related directives to access the message queue.
This directive will not cause the running task to be This directive will not cause the running task to be
preempted. preempted.
If node is @code{SEARCH_ALL_NODES}, all nodes are searched If node is @code{@value{RPREFIX}SEARCH_ALL_NODES}, all nodes are searched
with the local node being searched first. All other nodes are with the local node being searched first. All other nodes are
searched with the lowest numbered node searched first. searched with the lowest numbered node searched first.
@@ -466,9 +466,9 @@ procedure Message_Queue_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - queue deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - queue deleted successfully@*
@code{INVALID_ID} - invalid queue id@* @code{@value{RPREFIX}INVALID_ID} - invalid queue id@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote queue @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote queue
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -534,11 +534,11 @@ procedure Message_Queue_Send (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - message sent successfully@* @code{@value{RPREFIX}SUCCESSFUL} - message sent successfully@*
@code{INVALID_ID} - invalid queue id@* @code{@value{RPREFIX}INVALID_ID} - invalid queue id@*
@code{INVALID_SIZE} - invalid message size@* @code{@value{RPREFIX}INVALID_SIZE} - invalid message size@*
@code{UNSATISFIED} - out of message buffers@* @code{@value{RPREFIX}UNSATISFIED} - out of message buffers@*
@code{TOO_MANY} - queue's limit has been reached @code{@value{RPREFIX}TOO_MANY} - queue's limit has been reached
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -595,11 +595,11 @@ procedure Message_Queue_Urgent (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - message sent successfully@* @code{@value{RPREFIX}SUCCESSFUL} - message sent successfully@*
@code{INVALID_ID} - invalid queue id@* @code{@value{RPREFIX}INVALID_ID} - invalid queue id@*
@code{INVALID_SIZE} - invalid message size@* @code{@value{RPREFIX}INVALID_SIZE} - invalid message size@*
@code{UNSATISFIED} - out of message buffers@* @code{@value{RPREFIX}UNSATISFIED} - out of message buffers@*
@code{TOO_MANY} - queue's limit has been reached @code{@value{RPREFIX}TOO_MANY} - queue's limit has been reached
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -659,9 +659,9 @@ procedure Message_Queue_Broadcast (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - message broadcasted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - message broadcasted successfully@*
@code{INVALID_ID} - invalid queue id@* @code{@value{RPREFIX}INVALID_ID} - invalid queue id@*
@code{INVALID_SIZE} - invalid message size @code{@value{RPREFIX}INVALID_SIZE} - invalid message size
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -727,16 +727,16 @@ procedure Message_Queue_Receive (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - message received successfully@* @code{@value{RPREFIX}SUCCESSFUL} - message received successfully@*
@code{INVALID_ID} - invalid queue id@* @code{@value{RPREFIX}INVALID_ID} - invalid queue id@*
@code{UNSATISFIED} - queue is empty@* @code{@value{RPREFIX}UNSATISFIED} - queue is empty@*
@code{TIMEOUT} - timed out waiting for message@* @code{@value{RPREFIX}TIMEOUT} - timed out waiting for message@*
@code{OBJECT_WAS_DELETED} - queue deleted while waiting @code{@value{RPREFIX}OBJECT_WAS_DELETED} - queue deleted while waiting
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive receives a message from the message This directive receives a message from the message
queue specified in id. The @code{WAIT} and @code{NO_WAIT} options of the queue specified in id. The @code{@value{RPREFIX}WAIT} and @code{@value{RPREFIX}NO_WAIT} options of the
options parameter allow the calling task to specify whether to options parameter allow the calling task to specify whether to
wait for a message to become available or return immediately. wait for a message to become available or return immediately.
For either option, if there is at least one message in the For either option, if there is at least one message in the
@@ -749,16 +749,16 @@ the queue is empty, then a status code indicating this condition
is returned. If the calling task chooses to wait at the message is returned. If the calling task chooses to wait at the message
queue and the queue is empty, then the calling task is placed on queue and the queue is empty, then the calling task is placed on
the message wait queue and blocked. If the queue was created the message wait queue and blocked. If the queue was created
with the @code{PRIORITY} option specified, then the calling task is with the @code{@value{RPREFIX}PRIORITY} option specified, then the calling task is
inserted into the wait queue according to its priority. But, if inserted into the wait queue according to its priority. But, if
the queue was created with the @code{FIFO} option specified, then the the queue was created with the @code{@value{RPREFIX}FIFO} option specified, then the
calling task is placed at the rear of the wait queue. calling task is placed at the rear of the wait queue.
A task choosing to wait at the queue can optionally A task choosing to wait at the queue can optionally
specify a timeout value in the timeout parameter. The timeout specify a timeout value in the timeout parameter. The timeout
parameter specifies the maximum interval to wait before the parameter specifies the maximum interval to wait before the
calling task desires to be unblocked. If it is set to calling task desires to be unblocked. If it is set to
@code{NO_TIMEOUT}, then the calling task will wait forever. @code{@value{RPREFIX}NO_TIMEOUT}, then the calling task will wait forever.
@subheading NOTES: @subheading NOTES:
@@ -766,14 +766,14 @@ The following message receive option constants are
defined by RTEMS: defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for a message (default) @item @code{@value{RPREFIX}WAIT} - task will wait for a message (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
Receiving a message from a global message queue which Receiving a message from a global message queue which
does not reside on the local node will generate a request to the does not reside on the local node will generate a request to the
remote node to obtain a message from the specified message remote node to obtain a message from the specified message
queue. If no message is available and @code{WAIT} was specified, then queue. If no message is available and @code{@value{RPREFIX}WAIT} was specified, then
the task must be blocked until a message is posted. A proxy is the task must be blocked until a message is posted. A proxy is
allocated on the remote node to represent the task until the allocated on the remote node to represent the task until the
message is posted. message is posted.
@@ -809,8 +809,8 @@ procedure Message_Queue_Get_Number_Pending (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - number of messages pending returned successfully@* @code{@value{RPREFIX}SUCCESSFUL} - number of messages pending returned successfully@*
@code{INVALID_ID} - invalid queue id @code{@value{RPREFIX}INVALID_ID} - invalid queue id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -854,8 +854,8 @@ procedure Message_Queue_Flush (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - message queue flushed successfully@* @code{@value{RPREFIX}SUCCESSFUL} - message queue flushed successfully@*
@code{INVALID_ID} - invalid queue id @code{@value{RPREFIX}INVALID_ID} - invalid queue id
@subheading DESCRIPTION: @subheading DESCRIPTION:

58
doc/user/part.t
View File

@@ -29,11 +29,11 @@ dynamically allocate memory in fixed-size units. The directives
provided by the partition manager are: provided by the partition manager are:
@itemize @bullet @itemize @bullet
@item @code{partition_create} - Create a partition @item @code{@value{DIRPREFIX}partition_create} - Create a partition
@item @code{partition_ident} - Get ID of a partition @item @code{@value{DIRPREFIX}partition_ident} - Get ID of a partition
@item @code{partition_delete} - Delete a partition @item @code{@value{DIRPREFIX}partition_delete} - Delete a partition
@item @code{partition_get_buffer} - Get buffer from a partition @item @code{@value{DIRPREFIX}partition_get_buffer} - Get buffer from a partition
@item @code{partition_return_buffer} - Return buffer to a partition @item @code{@value{DIRPREFIX}partition_return_buffer} - Return buffer to a partition
@end itemize @end itemize
@ifinfo @ifinfo
@@ -88,7 +88,7 @@ are equivalent as long as each attribute appears exactly once in
the component list. An attribute listed as a default is not the component list. An attribute listed as a default is not
required to appear in the attribute list, although it is a good required to appear in the attribute list, although it is a good
programming practice to specify default attributes. If all programming practice to specify default attributes. If all
defaults are desired, the attribute @code{DEFAULT_ATTRIBUTES} should be defaults are desired, the attribute @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} should be
specified on this call. The attribute_set parameter should be specified on this call. The attribute_set parameter should be
GLOBAL to indicate that the partition is to be known globally. GLOBAL to indicate that the partition is to be known globally.
@@ -224,15 +224,15 @@ procedure Partition_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - partition created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - partition created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{TOO_MANY} - too many partitions created@* @code{@value{RPREFIX}TOO_MANY} - too many partitions created@*
@code{INVALID_ADDRESS} - address not on four byte boundary@* @code{@value{RPREFIX}INVALID_ADDRESS} - address not on four byte boundary@*
@code{INVALID_SIZE} - length or buffer size is 0@* @code{@value{RPREFIX}INVALID_SIZE} - length or buffer size is 0@*
@code{INVALID_SIZE} - length is less than the buffer size@* @code{@value{RPREFIX}INVALID_SIZE} - length is less than the buffer size@*
@code{INVALID_SIZE} - buffer size not a multiple of 4@* @code{@value{RPREFIX}INVALID_SIZE} - buffer size not a multiple of 4@*
@code{MP_NOT_CONFIGURED} - multiprocessing not configured@* @code{@value{RPREFIX}MP_NOT_CONFIGURED} - multiprocessing not configured@*
@code{TOO_MANY} - too many global objects @code{@value{RPREFIX}TOO_MANY} - too many global objects
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -307,9 +307,9 @@ procedure Partition_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - partition identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - partition identified successfully@*
@code{INVALID_NAME} - partition name not found@* @code{@value{RPREFIX}INVALID_NAME} - partition name not found@*
@code{INVALID_NODE} - invalid node id @code{@value{RPREFIX}INVALID_NODE} - invalid node id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -325,7 +325,7 @@ with other partition related directives to access the partition.
This directive will not cause the running task to be This directive will not cause the running task to be
preempted. preempted.
If node is @code{SEARCH_ALL_NODES}, all nodes are searched If node is @code{@value{RPREFIX}SEARCH_ALL_NODES}, all nodes are searched
with the local node being searched first. All other nodes are with the local node being searched first. All other nodes are
searched with the lowest numbered node searched first. searched with the lowest numbered node searched first.
@@ -363,10 +363,10 @@ procedure Partition_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - partition deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - partition deleted successfully@*
@code{INVALID_ID} - invalid partition id@* @code{@value{RPREFIX}INVALID_ID} - invalid partition id@*
@code{RESOURCE_IN_USE} - buffers still in use@* @code{@value{RPREFIX}RESOURCE_IN_USE} - buffers still in use@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote partition @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote partition
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -419,9 +419,9 @@ procedure Partition_Get_Buffer (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - buffer obtained successfully@* @code{@value{RPREFIX}SUCCESSFUL} - buffer obtained successfully@*
@code{INVALID_ID} - invalid partition id@* @code{@value{RPREFIX}INVALID_ID} - invalid partition id@*
@code{UNSATISFIED} - all buffers are allocated @code{@value{RPREFIX}UNSATISFIED} - all buffers are allocated
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -470,9 +470,9 @@ procedure Partition_Return_Buffer (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - buffer returned successfully@* @code{@value{RPREFIX}SUCCESSFUL} - buffer returned successfully@*
@code{INVALID_ID} - invalid partition id@* @code{@value{RPREFIX}INVALID_ID} - invalid partition id@*
@code{INVALID_ADDRESS} - buffer address not in partition @code{@value{RPREFIX}INVALID_ADDRESS} - buffer address not in partition
@subheading DESCRIPTION: @subheading DESCRIPTION:

102
doc/user/region.t
View File

@@ -29,13 +29,13 @@ allocate memory in variable sized units. The directives
provided by the region manager are: provided by the region manager are:
@itemize @bullet @itemize @bullet
@item @code{region_create} - Create a region @item @code{@value{DIRPREFIX}region_create} - Create a region
@item @code{region_ident} - Get ID of a region @item @code{@value{DIRPREFIX}region_ident} - Get ID of a region
@item @code{region_delete} - Delete a region @item @code{@value{DIRPREFIX}region_delete} - Delete a region
@item @code{region_extend} - Add memory to a region @item @code{@value{DIRPREFIX}region_extend} - Add memory to a region
@item @code{region_get_segment} - Get segment from a region @item @code{@value{DIRPREFIX}region_get_segment} - Get segment from a region
@item @code{region_return_segment} - Return segment to a region @item @code{@value{DIRPREFIX}region_return_segment} - Return segment to a region
@item @code{region_get_segment_size} - Obtain size of a segment @item @code{@value{DIRPREFIX}region_get_segment_size} - Obtain size of a segment
@end itemize @end itemize
@ifinfo @ifinfo
@@ -90,8 +90,8 @@ of the desired attribute components. The set of valid region
attributes is provided in the following table: attributes is provided in the following table:
@itemize @bullet @itemize @bullet
@item @code{FIFO} - tasks wait by FIFO (default) @item @code{@value{RPREFIX}FIFO} - tasks wait by FIFO (default)
@item @code{PRIORITY} - tasks wait by priority @item @code{@value{RPREFIX}PRIORITY} - tasks wait by priority
@end itemize @end itemize
Attribute values are specifically designed to be Attribute values are specifically designed to be
@@ -100,13 +100,13 @@ are equivalent as long as each attribute appears exactly once in
the component list. An attribute listed as a default is not the component list. An attribute listed as a default is not
required to appear in the attribute list, although it is a good required to appear in the attribute list, although it is a good
programming practice to specify default attributes. If all programming practice to specify default attributes. If all
defaults are desired, the attribute @code{DEFAULT_ATTRIBUTES} should be defaults are desired, the attribute @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} should be
specified on this call. specified on this call.
This example demonstrates the attribute_set parameter This example demonstrates the attribute_set parameter
needed to create a region with the task priority waiting queue needed to create a region with the task priority waiting queue
discipline. The attribute_set parameter to the region_create discipline. The attribute_set parameter to the region_create
directive should be @code{PRIORITY}. directive should be @code{@value{RPREFIX}PRIORITY}.
@ifinfo @ifinfo
@node Building an Option Set, Region Manager Operations, Building an Attribute Set, Region Manager Background @node Building an Option Set, Region Manager Operations, Building an Attribute Set, Region Manager Background
@@ -118,8 +118,8 @@ desired option components. The set of valid options for the
region_get_segment directive are listed in the following table: region_get_segment directive are listed in the following table:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for semaphore (default) @item @code{@value{RPREFIX}WAIT} - task will wait for semaphore (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
Option values are specifically designed to be Option values are specifically designed to be
@@ -128,12 +128,12 @@ are equivalent as long as each option appears exactly once in
the component list. An option listed as a default is not the component list. An option listed as a default is not
required to appear in the option list, although it is a good required to appear in the option list, although it is a good
programming practice to specify default options. If all programming practice to specify default options. If all
defaults are desired, the option @code{DEFAULT_OPTIONS} should be defaults are desired, the option @code{@value{RPREFIX}DEFAULT_OPTIONS} should be
specified on this call. specified on this call.
This example demonstrates the option parameter needed This example demonstrates the option parameter needed
to poll for a segment. The option parameter passed to the to poll for a segment. The option parameter passed to the
region_get_segment directive should be @code{NO_WAIT}. region_get_segment directive should be @code{@value{RPREFIX}NO_WAIT}.
@ifinfo @ifinfo
@node Region Manager Operations, Creating a Region, Building an Option Set, Region Manager @node Region Manager Operations, Creating a Region, Building an Option Set, Region Manager
@@ -218,7 +218,7 @@ following situations applies:
@itemize @bullet @itemize @bullet
@item By default, the calling task will wait forever to acquire the segment. @item By default, the calling task will wait forever to acquire the segment.
@item Specifying the @code{NO_WAIT} option forces an immediate return @item Specifying the @code{@value{RPREFIX}NO_WAIT} option forces an immediate return
with an error status code. with an error status code.
@item Specifying a timeout limits the interval the task will @item Specifying a timeout limits the interval the task will
@@ -325,11 +325,11 @@ procedure Region_Create (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - region created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - region created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{INVALID_ADDRESS} - address not on four byte boundary@* @code{@value{RPREFIX}INVALID_ADDRESS} - address not on four byte boundary@*
@code{TOO_MANY} - too many regions created@* @code{@value{RPREFIX}TOO_MANY} - too many regions created@*
@code{INVALID_SIZE} - invalid page size @code{@value{RPREFIX}INVALID_SIZE} - invalid page size
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -346,10 +346,10 @@ memory from the region is not used to store the RNCB. However,
some overhead within the region is required by RTEMS each time a some overhead within the region is required by RTEMS each time a
segment is constructed in the region. segment is constructed in the region.
Specifying @code{PRIORITY} in attribute_set causes tasks Specifying @code{@value{RPREFIX}PRIORITY} in attribute_set causes tasks
waiting for a segment to be serviced according to task priority. waiting for a segment to be serviced according to task priority.
Specifying @code{FIFO} in attribute_set or selecting Specifying @code{@value{RPREFIX}FIFO} in attribute_set or selecting
@code{DEFAULT_ATTRIBUTES} will cause waiting tasks to be serviced in @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} will cause waiting tasks to be serviced in
First In-First Out order. First In-First Out order.
The starting_address parameter must be aligned on a The starting_address parameter must be aligned on a
@@ -398,8 +398,8 @@ procedure Region_Ident (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - region identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - region identified successfully@*
@code{INVALID_NAME} - region name not found @code{@value{RPREFIX}INVALID_NAME} - region name not found
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -441,9 +441,9 @@ procedure Region_Delete (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - region deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - region deleted successfully@*
@code{INVALID_ID} - invalid region id@* @code{@value{RPREFIX}INVALID_ID} - invalid region id@*
@code{RESOURCE_IN_USE} - segments still in use @code{@value{RPREFIX}RESOURCE_IN_USE} - segments still in use
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -491,9 +491,9 @@ procedure Region_Extend (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - region extended successfully@* @code{@value{RPREFIX}SUCCESSFUL} - region extended successfully@*
@code{INVALID_ID} - invalid region id@* @code{@value{RPREFIX}INVALID_ID} - invalid region id@*
@code{INVALID_ADDRESS} - invalid address of area to add @code{@value{RPREFIX}INVALID_ADDRESS} - invalid address of area to add
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -543,25 +543,25 @@ procedure Region_Get_Segment (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - segment obtained successfully@* @code{@value{RPREFIX}SUCCESSFUL} - segment obtained successfully@*
@code{INVALID_ID} - invalid region id@* @code{@value{RPREFIX}INVALID_ID} - invalid region id@*
@code{INVALID_SIZE} - request is for zero bytes or exceeds @code{@value{RPREFIX}INVALID_SIZE} - request is for zero bytes or exceeds
the size of maximum segment which is possible for this region@* the size of maximum segment which is possible for this region@*
@code{UNSATISFIED} - segment of requested size not available@* @code{@value{RPREFIX}UNSATISFIED} - segment of requested size not available@*
@code{TIMEOUT} - timed out waiting for segment@* @code{@value{RPREFIX}TIMEOUT} - timed out waiting for segment@*
@code{OBJECT_WAS_DELETED} - semaphore deleted while waiting @code{@value{RPREFIX}OBJECT_WAS_DELETED} - semaphore deleted while waiting
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive obtains a variable size segment from This directive obtains a variable size segment from
the region specified by id. The address of the allocated the region specified by id. The address of the allocated
segment is returned in segment. The @code{WAIT} and @code{NO_WAIT} components segment is returned in segment. The @code{@value{RPREFIX}WAIT} and @code{@value{RPREFIX}NO_WAIT} components
of the options parameter are used to specify whether the calling of the options parameter are used to specify whether the calling
tasks wish to wait for a segment to become available or return tasks wish to wait for a segment to become available or return
immediately if no segment is available. For either option, if a immediately if no segment is available. For either option, if a
sufficiently sized segment is available, then the segment is sufficiently sized segment is available, then the segment is
successfully acquired by returning immediately with the successfully acquired by returning immediately with the
@code{SUCCESSFUL} status code. @code{@value{RPREFIX}SUCCESSFUL} status code.
If the calling task chooses to return immediately and If the calling task chooses to return immediately and
a segment large enough is not available, then an error code a segment large enough is not available, then an error code
@@ -569,14 +569,14 @@ indicating this fact is returned. If the calling task chooses
to wait for the segment and a segment large enough is not to wait for the segment and a segment large enough is not
available, then the calling task is placed on the region's available, then the calling task is placed on the region's
segment wait queue and blocked. If the region was created with segment wait queue and blocked. If the region was created with
the @priority{PRIORITY} option, then the calling task is inserted into the the @code{@value{RPREFIX}PRIORITY} option, then the calling task is inserted into the
wait queue according to its priority. However, if the region wait queue according to its priority. However, if the region
was created with the @priority{FIFO} option, then the calling task is was created with the @code{@value{RPREFIX}FIFO} option, then the calling task is
placed at the rear of the wait queue. placed at the rear of the wait queue.
The timeout parameter specifies the maximum interval The timeout parameter specifies the maximum interval
that a task is willing to wait to obtain a segment. If timeout that a task is willing to wait to obtain a segment. If timeout
is set to @code{NO_TIMEOUT}, then the calling task will wait forever. is set to @code{@value{RPREFIX}NO_TIMEOUT}, then the calling task will wait forever.
@subheading NOTES: @subheading NOTES:
@@ -588,8 +588,8 @@ The following segment acquisition option constants
are defined by RTEMS: are defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for semaphore (default) @item @code{@value{RPREFIX}WAIT} - task will wait for semaphore (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
A clock tick is required to support the timeout functionality of A clock tick is required to support the timeout functionality of
@@ -624,9 +624,9 @@ procedure Region_Return_Segment (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - segment returned successfully@* @code{@value{RPREFIX}SUCCESSFUL} - segment returned successfully@*
@code{INVALID_ID} - invalid region id@* @code{@value{RPREFIX}INVALID_ID} - invalid region id@*
@code{INVALID_ADDRESS} - segment address not in region @code{@value{RPREFIX}INVALID_ADDRESS} - segment address not in region
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -682,9 +682,9 @@ procedure Region_Get_Segment_Size (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - segment obtained successfully@* @code{@value{RPREFIX}SUCCESSFUL} - segment obtained successfully@*
@code{INVALID_ID} - invalid region id@* @code{@value{RPREFIX}INVALID_ID} - invalid region id@*
@code{INVALID_ADDRESS} - segment address not in region @code{@value{RPREFIX}INVALID_ADDRESS} - segment address not in region
@subheading DESCRIPTION: @subheading DESCRIPTION:

58
doc/user/rtmon.t
View File

@@ -35,12 +35,12 @@ implement tasks which execute in a periodic fashion. The
directives provided by the rate monotonic manager are: directives provided by the rate monotonic manager are:
@itemize @bullet @itemize @bullet
@item @code{rate_monotonic_create} - Create a rate monotonic period @item @code{@value{DIRPREFIX}rate_monotonic_create} - Create a rate monotonic period
@item @code{rate_monotonic_ident} - Get ID of a period @item @code{@value{DIRPREFIX}rate_monotonic_ident} - Get ID of a period
@item @code{rate_monotonic_cancel} - Cancel a period @item @code{@value{DIRPREFIX}rate_monotonic_cancel} - Cancel a period
@item @code{rate_monotonic_delete} - Delete a rate monotonic period @item @code{@value{DIRPREFIX}rate_monotonic_delete} - Delete a rate monotonic period
@item @code{rate_monotonic_period} - Conclude current/Start next period @item @code{@value{DIRPREFIX}rate_monotonic_period} - Conclude current/Start next period
@item @code{rate_monotonic_get_status} - Obtain status information on period @item @code{@value{DIRPREFIX}rate_monotonic_get_status} - Obtain status information on period
@end itemize @end itemize
@ifinfo @ifinfo
@@ -739,18 +739,18 @@ returns immediately with a timeout error status.
@subsection Obtaining a Period's Status @subsection Obtaining a Period's Status
If the rate_monotonic_period directive is invoked If the rate_monotonic_period directive is invoked
with a period of @code{PERIOD_STATUS} ticks, the current state of the with a period of @code{@value{RPREFIX}PERIOD_STATUS} ticks, the current state of the
specified rate monotonic period will be returned. The following specified rate monotonic period will be returned. The following
table details the relationship between the period's status and table details the relationship between the period's status and
the directive status code returned by the rate_monotonic_period the directive status code returned by the rate_monotonic_period
directive: directive:
@itemize @bullet @itemize @bullet
@item @code{SUCCESSFUL} - period is running @item @code{@value{RPREFIX}SUCCESSFUL} - period is running
@item @code{TIMEOUT} - period has expired @item @code{@value{RPREFIX}TIMEOUT} - period has expired
@item @code{NOT_DEFINED} - period has never been initiated @item @code{@value{RPREFIX}NOT_DEFINED} - period has never been initiated
@end itemize @end itemize
Obtaining the status of a rate monotonic period does Obtaining the status of a rate monotonic period does
@@ -966,9 +966,9 @@ procedure Rate_Monotonic_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - rate monotonic period created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - rate monotonic period created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{TOO_MANY} - too many periods created @code{@value{RPREFIX}TOO_MANY} - too many periods created
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -1012,8 +1012,8 @@ procedure Rate_Monotonic_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - period identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - period identified successfully@*
@code{INVALID_NAME} - period name not found @code{@value{RPREFIX}INVALID_NAME} - period name not found
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -1055,9 +1055,9 @@ procedure Rate_Monotonic_Cancel (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - period canceled successfully@* @code{@value{RPREFIX}SUCCESSFUL} - period canceled successfully@*
@code{INVALID_ID} - invalid rate monotonic period id@* @code{@value{RPREFIX}INVALID_ID} - invalid rate monotonic period id@*
@code{NOT_OWNER_OF_RESOURCE} - rate monotonic period not created by calling task @code{@value{RPREFIX}NOT_OWNER_OF_RESOURCE} - rate monotonic period not created by calling task
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -1099,8 +1099,8 @@ procedure Rate_Monotonic_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - period deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - period deleted successfully@*
@code{INVALID_ID} - invalid rate monotonic period id @code{@value{RPREFIX}INVALID_ID} - invalid rate monotonic period id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -1144,12 +1144,12 @@ procedure Rate_Monotonic_Period (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - period initiated successfully@* @code{@value{RPREFIX}SUCCESSFUL} - period initiated successfully@*
@code{INVALID_ID} - invalid rate monotonic period id@* @code{@value{RPREFIX}INVALID_ID} - invalid rate monotonic period id@*
@code{NOT_OWNER_OF_RESOURCE} - period not created by calling task@* @code{@value{RPREFIX}NOT_OWNER_OF_RESOURCE} - period not created by calling task@*
@code{NOT_DEFINED} - period has never been initiated (only @code{@value{RPREFIX}NOT_DEFINED} - period has never been initiated (only
possible when period is set to PERIOD_STATUS)@* possible when period is set to PERIOD_STATUS)@*
@code{TIMEOUT} - period has expired @code{@value{RPREFIX}TIMEOUT} - period has expired
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -1160,7 +1160,7 @@ reinitiating the period with the specified period. If id was
not running (either expired or never initiated), the period is not running (either expired or never initiated), the period is
immediately initiated and the directive returns immediately. immediately initiated and the directive returns immediately.
If invoked with a period of @code{PERIOD_STATUS} ticks, the If invoked with a period of @code{@value{RPREFIX}PERIOD_STATUS} ticks, the
current state of id will be returned. The directive status current state of id will be returned. The directive status
indicates the current state of the period. This does not alter indicates the current state of the period. This does not alter
the state or period of the period. the state or period of the period.
@@ -1198,9 +1198,9 @@ procedure Rate_Monotonic_Get_Status (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - period initiated successfully@* @code{@value{RPREFIX}SUCCESSFUL} - period initiated successfully@*
@code{INVALID_ID} - invalid rate monotonic period id@* @code{@value{RPREFIX}INVALID_ID} - invalid rate monotonic period id@*
@code{INVALID_ADDRESS} - invalid address of status@* @code{@value{RPREFIX}INVALID_ADDRESS} - invalid address of status@*
@subheading DESCRIPTION: @subheading DESCRIPTION:

16
doc/user/schedule.t
View File

@@ -128,8 +128,8 @@ to a task.}
Another way the user can alter the basic scheduling Another way the user can alter the basic scheduling
algorithm is by manipulating the preemption mode flag algorithm is by manipulating the preemption mode flag
(@code{PREEMPT_MASK}) of individual tasks. If preemption is disabled (@code{@value{RPREFIX}PREEMPT_MASK}) of individual tasks. If preemption is disabled
for a task (@code{NO_PREEMPT}), then the task will not relinquish for a task (@code{@value{RPREFIX}NO_PREEMPT}), then the task will not relinquish
control of the processor until it terminates, blocks, or control of the processor until it terminates, blocks, or
re-enables preemption. Even tasks which become ready to run and re-enables preemption. Even tasks which become ready to run and
possess higher priority levels will not be allowed to execute. possess higher priority levels will not be allowed to execute.
@@ -146,8 +146,8 @@ Timeslicing or round-robin scheduling is an
additional method which can be used to alter the basic additional method which can be used to alter the basic
scheduling algorithm. Like preemption, timeslicing is specified scheduling algorithm. Like preemption, timeslicing is specified
on a task by task basis using the timeslicing mode flag on a task by task basis using the timeslicing mode flag
(@code{TIMESLICE_MASK}). If timeslicing is enabled for a task (@code{@value{RPREFIX}TIMESLICE_MASK}). If timeslicing is enabled for a task
(@code{TIMESLICE}), then RTEMS will limit the amount of time the task (@code{@value{RPREFIX}TIMESLICE}), then RTEMS will limit the amount of time the task
can execute before the processor is allocated to another task. can execute before the processor is allocated to another task.
Each tick of the real-time clock reduces the currently running Each tick of the real-time clock reduces the currently running
task's timeslice. When the execution time equals the timeslice, task's timeslice. When the execution time equals the timeslice,
@@ -167,7 +167,7 @@ entire timeslice.
The final mechanism for altering the RTEMS scheduling The final mechanism for altering the RTEMS scheduling
algorithm is called manual round-robin. Manual round-robin is algorithm is called manual round-robin. Manual round-robin is
invoked by using the task_wake_after directive with a time invoked by using the task_wake_after directive with a time
interval of @code{YIELD_PROCESSOR}. This allows a task to give up the interval of @code{@value{RPREFIX}YIELD_PROCESSOR}. This allows a task to give up the
processor and be immediately returned to the ready chain at the processor and be immediately returned to the ready chain at the
end of its priority group. If no other tasks of the same end of its priority group. If no other tasks of the same
priority are ready to run, then the task does not lose control priority are ready to run, then the task does not lose control
@@ -195,12 +195,12 @@ saved or restored for a context switch is located either in the
TCB or on the task's stacks. TCB or on the task's stacks.
Tasks that utilize a numeric coprocessor and are Tasks that utilize a numeric coprocessor and are
created with the @code{FLOATING_POINT} attribute require additional created with the @code{@value{RPREFIX}FLOATING_POINT} attribute require additional
operations during a context switch. These additional operations operations during a context switch. These additional operations
are necessary to save and restore the floating point context of are necessary to save and restore the floating point context of
@code{FLOATING_POINT} tasks. To avoid unnecessary save and restore @code{@value{RPREFIX}FLOATING_POINT} tasks. To avoid unnecessary save and restore
operations, the state of the numeric coprocessor is only saved operations, the state of the numeric coprocessor is only saved
when a @code{FLOATING_POINT} task is dispatched and that task was not when a @code{@value{RPREFIX}FLOATING_POINT} task is dispatched and that task was not
the last task to utilize the coprocessor. the last task to utilize the coprocessor.
@ifinfo @ifinfo

98
doc/user/sem.t
View File

@@ -30,11 +30,11 @@ exclusion capabilities. The directives provided by the
semaphore manager are: semaphore manager are:
@itemize @bullet @itemize @bullet
@item @code{semaphore_create} - Create a semaphore @item @code{@value{DIRPREFIX}semaphore_create} - Create a semaphore
@item @code{semaphore_ident} - Get ID of a semaphore @item @code{@value{DIRPREFIX}semaphore_ident} - Get ID of a semaphore
@item @code{semaphore_delete} - Delete a semaphore @item @code{@value{DIRPREFIX}semaphore_delete} - Delete a semaphore
@item @code{semaphore_obtain} - Acquire a semaphore @item @code{@value{DIRPREFIX}semaphore_obtain} - Acquire a semaphore
@item @code{semaphore_release} - Release a semaphore @item @code{@value{DIRPREFIX}semaphore_release} - Release a semaphore
@end itemize @end itemize
@ifinfo @ifinfo
@@ -230,17 +230,17 @@ are equivalent as long as each attribute appears exactly once in
the component list. An attribute listed as a default is not the component list. An attribute listed as a default is not
required to appear in the attribute list, although it is a good required to appear in the attribute list, although it is a good
programming practice to specify default attributes. If all programming practice to specify default attributes. If all
defaults are desired, the attribute @code{DEFAULT_ATTRIBUTES} should be defaults are desired, the attribute @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} should be
specified on this call. specified on this call.
This example demonstrates the attribute_set parameter This example demonstrates the attribute_set parameter
needed to create a local semaphore with the task priority needed to create a local semaphore with the task priority
waiting queue discipline. The attribute_set parameter passed to waiting queue discipline. The attribute_set parameter passed to
the semaphore_create directive could be either the semaphore_create directive could be either
@code{PRIORITY} or @code{@value{RPREFIX}PRIORITY} or
@code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}PRIORITY}. @code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}PRIORITY}.
The attribute_set parameter can be set to @code{PRIORITY} The attribute_set parameter can be set to @code{@value{RPREFIX}PRIORITY}
because @code{LOCAL} is the default for all created tasks. If a because @code{@value{RPREFIX}LOCAL} is the default for all created tasks. If a
similar semaphore were to be known globally, then the similar semaphore were to be known globally, then the
attribute_set parameter would be attribute_set parameter would be
@code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}PRIORITY}. @code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}PRIORITY}.
@@ -255,8 +255,8 @@ desired option components. The set of valid options for the
semaphore_obtain directive are listed in the following table: semaphore_obtain directive are listed in the following table:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for semaphore (default) @item @code{@value{RPREFIX}WAIT} - task will wait for semaphore (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
Option values are specifically designed to be Option values are specifically designed to be
@@ -265,12 +265,12 @@ are equivalent as long as each attribute appears exactly once in
the component list. An option listed as a default is not the component list. An option listed as a default is not
required to appear in the list, although it is a good required to appear in the list, although it is a good
programming practice to specify default options. If all programming practice to specify default options. If all
defaults are desired, the option @code{DEFAULT_OPTIONS} should be defaults are desired, the option @code{@value{RPREFIX}DEFAULT_OPTIONS} should be
specified on this call. specified on this call.
This example demonstrates the option parameter needed This example demonstrates the option parameter needed
to poll for a semaphore. The option parameter passed to the to poll for a semaphore. The option parameter passed to the
semaphore_obtain directive should be @code{NO_WAIT}. semaphore_obtain directive should be @code{@value{RPREFIX}NO_WAIT}.
@ifinfo @ifinfo
@node Semaphore Manager Operations, Creating a Semaphore, Building a SEMAPHORE_OBTAIN Option Set, Semaphore Manager @node Semaphore Manager Operations, Creating a Semaphore, Building a SEMAPHORE_OBTAIN Option Set, Semaphore Manager
@@ -347,7 +347,7 @@ one of the following situations applies:
@item By default, the calling task will wait forever to @item By default, the calling task will wait forever to
acquire the semaphore. acquire the semaphore.
@item Specifying @code{NO_WAIT} forces an immediate return with an @item Specifying @code{@value{RPREFIX}NO_WAIT} forces an immediate return with an
error status code. error status code.
@item Specifying a timeout limits the interval the task will @item Specifying a timeout limits the interval the task will
@@ -456,13 +456,13 @@ procedure Semaphore_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - semaphore created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - semaphore created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{TOO_MANY} - too many semaphores created@* @code{@value{RPREFIX}TOO_MANY} - too many semaphores created@*
@code{NOT_DEFINED} - invalid attribute set@* @code{@value{RPREFIX}NOT_DEFINED} - invalid attribute set@*
@code{INVALID_NUMBER} - invalid starting count for binary semaphore@* @code{@value{RPREFIX}INVALID_NUMBER} - invalid starting count for binary semaphore@*
@code{MP_NOT_CONFIGURED} - multiprocessing not configured@* @code{@value{RPREFIX}MP_NOT_CONFIGURED} - multiprocessing not configured@*
@code{TOO_MANY} - too many global objects @code{@value{RPREFIX}TOO_MANY} - too many global objects
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -545,9 +545,9 @@ procedure Semaphore_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - semaphore identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - semaphore identified successfully@*
@code{INVALID_NAME} - semaphore name not found@* @code{@value{RPREFIX}INVALID_NAME} - semaphore name not found@*
@code{INVALID_NODE} - invalid node id @code{@value{RPREFIX}INVALID_NODE} - invalid node id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -563,7 +563,7 @@ by other semaphore related directives to access the semaphore.
This directive will not cause the running task to be This directive will not cause the running task to be
preempted. preempted.
If node is @code{SEARCH_ALL_NODES}, all nodes are searched If node is @code{@value{RPREFIX}SEARCH_ALL_NODES}, all nodes are searched
with the local node being searched first. All other nodes are with the local node being searched first. All other nodes are
searched with the lowest numbered node searched first. searched with the lowest numbered node searched first.
@@ -601,10 +601,10 @@ procedure Semaphore_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - semaphore deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - semaphore deleted successfully@*
@code{INVALID_ID} - invalid semaphore id@* @code{@value{RPREFIX}INVALID_ID} - invalid semaphore id@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote semaphore@* @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot delete remote semaphore@*
@code{RESOURCE_IN_USE} - binary semaphore is in use @code{@value{RPREFIX}RESOURCE_IN_USE} - binary semaphore is in use
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -666,20 +666,20 @@ procedure Semaphore_Obtain (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - semaphore obtained successfully@* @code{@value{RPREFIX}SUCCESSFUL} - semaphore obtained successfully@*
@code{UNSATISFIED} - semaphore not available@* @code{@value{RPREFIX}UNSATISFIED} - semaphore not available@*
@code{TIMEOUT} - timed out waiting for semaphore@* @code{@value{RPREFIX}TIMEOUT} - timed out waiting for semaphore@*
@code{OBJECT_WAS_DELETED} - semaphore deleted while waiting@* @code{@value{RPREFIX}OBJECT_WAS_DELETED} - semaphore deleted while waiting@*
@code{INVALID_ID} - invalid semaphore id @code{@value{RPREFIX}INVALID_ID} - invalid semaphore id
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive acquires the semaphore specified by This directive acquires the semaphore specified by
id. The @code{WAIT} and @code{NO_WAIT} components of the options parameter id. The @code{@value{RPREFIX}WAIT} and @code{@value{RPREFIX}NO_WAIT} components of the options parameter
indicate whether the calling task wants to wait for the indicate whether the calling task wants to wait for the
semaphore to become available or return immediately if the semaphore to become available or return immediately if the
semaphore is not currently available. With either @code{WAIT} or semaphore is not currently available. With either @code{@value{RPREFIX}WAIT} or
@code{NO_WAIT}, if the current semaphore count is positive, then it is @code{@value{RPREFIX}NO_WAIT}, if the current semaphore count is positive, then it is
decremented by one and the semaphore is successfully acquired by decremented by one and the semaphore is successfully acquired by
returning immediately with a successful return code. returning immediately with a successful return code.
@@ -690,23 +690,23 @@ If the calling task chooses to wait for a semaphore and the
current semaphore count is zero or negative, then it is current semaphore count is zero or negative, then it is
decremented by one and the calling task is placed on the decremented by one and the calling task is placed on the
semaphore's wait queue and blocked. If the semaphore was semaphore's wait queue and blocked. If the semaphore was
created with the @code{PRIORITY} attribute, then the calling task is created with the @code{@value{RPREFIX}PRIORITY} attribute, then the calling task is
inserted into the queue according to its priority. However, if inserted into the queue according to its priority. However, if
the semaphore was created with the @code{FIFO} attribute, then the the semaphore was created with the @code{@value{RPREFIX}FIFO} attribute, then the
calling task is placed at the rear of the wait queue. If the calling task is placed at the rear of the wait queue. If the
binary semaphore was created with the @code{INHERIT_PRIORITY} binary semaphore was created with the @code{@value{RPREFIX}INHERIT_PRIORITY}
attribute, then the priority of the task currently holding the attribute, then the priority of the task currently holding the
binary semaphore is guaranteed to be greater than or equal to binary semaphore is guaranteed to be greater than or equal to
that of the blocking task. If the binary semaphore was created that of the blocking task. If the binary semaphore was created
with the @code{PRIORITY_CEILING} attribute, a task successfully obtains with the @code{@value{RPREFIX}PRIORITY_CEILING} attribute, a task successfully obtains
the semaphore, and the priority of that task is greater than the the semaphore, and the priority of that task is greater than the
ceiling priority for this semaphore, then the priority of the ceiling priority for this semaphore, then the priority of the
task obtaining the semaphore is elevated to that of the ceiling. task obtaining the semaphore is elevated to that of the ceiling.
The timeout parameter specifies the maximum interval The timeout parameter specifies the maximum interval
the calling task is willing to be blocked waiting for the the calling task is willing to be blocked waiting for the
semaphore. If it is set to @code{NO_TIMEOUT}, then the calling task semaphore. If it is set to @code{@value{RPREFIX}NO_TIMEOUT}, then the calling task
will wait forever. If the semaphore is available or the @code{NO_WAIT} will wait forever. If the semaphore is available or the @code{@value{RPREFIX}NO_WAIT}
option component is set, then timeout is ignored. option component is set, then timeout is ignored.
@subheading NOTES: @subheading NOTES:
@@ -714,14 +714,14 @@ The following semaphore acquisition option constants
are defined by RTEMS: are defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{WAIT} - task will wait for semaphore (default) @item @code{@value{RPREFIX}WAIT} - task will wait for semaphore (default)
@item @code{NO_WAIT} - task should not wait @item @code{@value{RPREFIX}NO_WAIT} - task should not wait
@end itemize @end itemize
Attempting to obtain a global semaphore which does not reside on Attempting to obtain a global semaphore which does not reside on
the local node will generate a request to the remote node to the local node will generate a request to the remote node to
access the semaphore. If the semaphore is not available and access the semaphore. If the semaphore is not available and
@code{NO_WAIT} was not specified, then the task must be blocked until @code{@value{RPREFIX}NO_WAIT} was not specified, then the task must be blocked until
the semaphore is released. A proxy is allocated on the remote the semaphore is released. A proxy is allocated on the remote
node to represent the task until the semaphore is released. node to represent the task until the semaphore is released.
@@ -754,9 +754,9 @@ procedure Semaphore_Release (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - semaphore released successfully@* @code{@value{RPREFIX}SUCCESSFUL} - semaphore released successfully@*
@code{INVALID_ID} - invalid semaphore id@* @code{@value{RPREFIX}INVALID_ID} - invalid semaphore id@*
@code{NOT_OWNER_OF_RESOURCE} - calling task does not own semaphore @code{@value{RPREFIX}NOT_OWNER_OF_RESOURCE} - calling task does not own semaphore
@subheading DESCRIPTION: @subheading DESCRIPTION:

78
doc/user/signal.t
View File

@@ -29,8 +29,8 @@ for asynchronous communication. The directives provided by the
signal manager are: signal manager are:
@itemize @bullet @itemize @bullet
@item @code{signal_catch} - Establish an ASR @item @code{@value{DIRPREFIX}signal_catch} - Establish an ASR
@item @code{signal_send} - Send signal set to a task @item @code{@value{DIRPREFIX}signal_send} - Send signal set to a task
@end itemize @end itemize
@ifinfo @ifinfo
@@ -100,8 +100,8 @@ result, does not have a task mode.
@subsection Building a Signal Set @subsection Building a Signal Set
A signal set is built by a bitwise OR of the desired A signal set is built by a bitwise OR of the desired
signals. The set of valid signals is @code{SIGNAL_0} through signals. The set of valid signals is @code{@value{RPREFIX}SIGNAL_0} through
@code{SIGNAL_31}. If a signal is not explicitly specified in the @code{@value{RPREFIX}SIGNAL_31}. If a signal is not explicitly specified in the
signal set, then it is not present. Signal values are signal set, then it is not present. Signal values are
specifically designed to be mutually exclusive, therefore specifically designed to be mutually exclusive, therefore
bitwise OR and addition operations are equivalent as long as bitwise OR and addition operations are equivalent as long as
@@ -109,7 +109,7 @@ each signal appears exactly once in the component list.
This example demonstrates the signal parameter used This example demonstrates the signal parameter used
when sending the signal set consisting of when sending the signal set consisting of
@code{SIGNAL_6}, @code{SIGNAL_15}, and @code{SIGNAL_31}. @code{@value{RPREFIX}SIGNAL_6}, @code{@value{RPREFIX}SIGNAL_15}, and @code{@value{RPREFIX}SIGNAL_31}.
The signal parameter provided to the signal_send directive should be The signal parameter provided to the signal_send directive should be
@code{@value{RPREFIX}SIGNAL_6 @value{OR} @code{@value{RPREFIX}SIGNAL_6 @value{OR}
@value{RPREFIX}SIGNAL_15 @value{OR} @value{RPREFIX}SIGNAL_31}. @value{RPREFIX}SIGNAL_15 @value{OR} @value{RPREFIX}SIGNAL_31}.
@@ -126,29 +126,29 @@ directives. A complete list of mode options is provided in the
following table: following table:
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} is masked by @item @code{@value{RPREFIX}PREEMPT} is masked by
@code{PREEMPT_MASK} and enables preemption @code{@value{RPREFIX}PREEMPT_MASK} and enables preemption
@item @code{NO_PREEMPT} is masked by @item @code{@value{RPREFIX}NO_PREEMPT} is masked by
@code{PREEMPT_MASK} and disables preemption @code{@value{RPREFIX}PREEMPT_MASK} and disables preemption
@item @code{NO_TIMESLICE} is masked by @item @code{@value{RPREFIX}NO_TIMESLICE} is masked by
@code{TIMESLICE_MASK} and disables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and disables timeslicing
@item @code{TIMESLICE} is masked by @item @code{@value{RPREFIX}TIMESLICE} is masked by
@code{TIMESLICE_MASK} and enables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and enables timeslicing
@item @code{ASR} is masked by @item @code{@value{RPREFIX}ASR} is masked by
@code{ASR_MASK} and enables ASR processing @code{@value{RPREFIX}ASR_MASK} and enables ASR processing
@item @code{NO_ASR} is masked by @item @code{@value{RPREFIX}NO_ASR} is masked by
@code{ASR_MASK} and disables ASR processing @code{@value{RPREFIX}ASR_MASK} and disables ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by
@code{INTERRUPT_MASK} and enables all interrupts @code{@value{RPREFIX}INTERRUPT_MASK} and enables all interrupts
@item @code{@value{RPREFIX}INTERRUPT_LEVEL}(n)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} is masked by
@code{INTERRUPT_MASK} and sets interrupts level n @code{@value{RPREFIX}INTERRUPT_MASK} and sets interrupts level n
@end itemize @end itemize
Mode values are specifically designed to be mutually Mode values are specifically designed to be mutually
@@ -318,7 +318,7 @@ procedure Signal_Catch (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - always successful @code{@value{RPREFIX}SUCCESSFUL} - always successful
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -339,29 +339,29 @@ preempted.
The following task mode constants are defined by RTEMS: The following task mode constants are defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} is masked by @item @code{@value{RPREFIX}PREEMPT} is masked by
@code{PREEMPT_MASK} and enables preemption @code{@value{RPREFIX}PREEMPT_MASK} and enables preemption
@item @code{NO_PREEMPT} is masked by @item @code{@value{RPREFIX}NO_PREEMPT} is masked by
@code{PREEMPT_MASK} and disables preemption @code{@value{RPREFIX}PREEMPT_MASK} and disables preemption
@item @code{NO_TIMESLICE} is masked by @item @code{@value{RPREFIX}NO_TIMESLICE} is masked by
@code{TIMESLICE_MASK} and disables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and disables timeslicing
@item @code{TIMESLICE} is masked by @item @code{@value{RPREFIX}TIMESLICE} is masked by
@code{TIMESLICE_MASK} and enables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and enables timeslicing
@item @code{ASR} is masked by @item @code{@value{RPREFIX}ASR} is masked by
@code{ASR_MASK} and enables ASR processing @code{@value{RPREFIX}ASR_MASK} and enables ASR processing
@item @code{NO_ASR} is masked by @item @code{@value{RPREFIX}NO_ASR} is masked by
@code{ASR_MASK} and disables ASR processing @code{@value{RPREFIX}ASR_MASK} and disables ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by
@code{INTERRUPT_MASK} and enables all interrupts @code{@value{RPREFIX}INTERRUPT_MASK} and enables all interrupts
@item @code{@value{RPREFIX}INTERRUPT_LEVEL}(n)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} is masked by
@code{INTERRUPT_MASK} and sets interrupts level n @code{@value{RPREFIX}INTERRUPT_MASK} and sets interrupts level n
@end itemize @end itemize
@page @page
@@ -392,9 +392,9 @@ procedure Signal_Send (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - signal sent successfully@* @code{@value{RPREFIX}SUCCESSFUL} - signal sent successfully@*
@code{INVALID_ID} - task id invalid@* @code{@value{RPREFIX}INVALID_ID} - task id invalid@*
@code{NOT_DEFINED} - ASR invalid @code{@value{RPREFIX}NOT_DEFINED} - ASR invalid
@subheading DESCRIPTION: @subheading DESCRIPTION:

302
doc/user/task.t
View File

@@ -31,19 +31,19 @@ create, delete, and administer tasks. The directives provided
by the task manager are: by the task manager are:
@itemize @bullet @itemize @bullet
@item @code{task_create} - Create a task @item @code{@value{DIRPREFIX}task_create} - Create a task
@item @code{task_ident} - Get ID of a task @item @code{@value{DIRPREFIX}task_ident} - Get ID of a task
@item @code{task_start} - Start a task @item @code{@value{DIRPREFIX}task_start} - Start a task
@item @code{task_restart} - Restart a task @item @code{@value{DIRPREFIX}task_restart} - Restart a task
@item @code{task_delete} - Delete a task @item @code{@value{DIRPREFIX}task_delete} - Delete a task
@item @code{task_suspend} - Suspend a task @item @code{@value{DIRPREFIX}task_suspend} - Suspend a task
@item @code{task_resume} - Resume a task @item @code{@value{DIRPREFIX}task_resume} - Resume a task
@item @code{task_set_priority} - Set task priority @item @code{@value{DIRPREFIX}task_set_priority} - Set task priority
@item @code{task_mode} - Change current task's mode @item @code{@value{DIRPREFIX}task_mode} - Change current task's mode
@item @code{task_get_note} - Get task notepad entry @item @code{@value{DIRPREFIX}task_get_note} - Get task notepad entry
@item @code{task_set_note} - Set task notepad entry @item @code{@value{DIRPREFIX}task_set_note} - Set task notepad entry
@item @code{task_wake_after} - Wake up after interval @item @code{@value{DIRPREFIX}task_wake_after} - Wake up after interval
@item @code{task_wake_when} - Wake up when specified @item @code{@value{DIRPREFIX}task_wake_when} - Wake up when specified
@end itemize @end itemize
@ifinfo @ifinfo
@@ -195,46 +195,46 @@ execution environment of the task.
The preemption component allows a task to determine when control The preemption component allows a task to determine when control
of the processor is relinquished. If preemption is disabled of the processor is relinquished. If preemption is disabled
(NO_PREEMPT), the task will retain control of the processor as (@code{@value{RPREFIX}NO_PREEMPT}), the task will retain control of the processor as
long as it is in the executing state -- even if a higher long as it is in the executing state -- even if a higher
priority task is made ready. If preemption is enabled (PREEMPT) priority task is made ready. If preemption is enabled (@code{@value{RPREFIX}PREEMPT})
and a higher priority task is made ready, then the processor and a higher priority task is made ready, then the processor
will be taken away from the current task immediately and given will be taken away from the current task immediately and given
to the higher priority task. to the higher priority task.
The timeslicing component is used by the RTEMS scheduler to The timeslicing component is used by the RTEMS scheduler to
determine how the processor is allocated to tasks of equal determine how the processor is allocated to tasks of equal
priority. If timeslicing is enabled (TIMESLICE), then RTEMS priority. If timeslicing is enabled (@code{@value{RPREFIX}TIMESLICE}), then RTEMS
will limit the amount of time the task can execute before the will limit the amount of time the task can execute before the
processor is allocated to another ready task of equal priority. processor is allocated to another ready task of equal priority.
The length of the timeslice is application dependent and The length of the timeslice is application dependent and
specified in the Configuration Table. If timeslicing is specified in the Configuration Table. If timeslicing is
disabled (NO_TIMESLICE), then the task will be allowed to disabled (@code{@value{RPREFIX}NO_TIMESLICE}), then the task will be allowed to
execute until a task of higher priority is made ready. If execute until a task of higher priority is made ready. If
NO_PREEMPT is selected, then the timeslicing component is @code{@value{RPREFIX}NO_PREEMPT} is selected, then the timeslicing component is
ignored by the scheduler. ignored by the scheduler.
The asynchronous signal processing component is used to The asynchronous signal processing component is used to
determine when received signals are to be processed by the task. determine when received signals are to be processed by the task.
If signal processing is enabled (ASR), then signals sent to the If signal processing is enabled (@code{@value{RPREFIX}ASR}), then signals sent to the
task will be processed the next time the task executes. If task will be processed the next time the task executes. If
signal processing is disabled (NO_ASR), then all signals signal processing is disabled (@code{@value{RPREFIX}NO_ASR}), then all signals
received by the task will remain posted until signal processing received by the task will remain posted until signal processing
is enabled. This component affects only tasks which have is enabled. This component affects only tasks which have
established a routine to process asynchronous signals. established a routine to process asynchronous signals.
The interrupt level component is used to determine which The interrupt level component is used to determine which
interrupts will be enabled when the task is executing. interrupts will be enabled when the task is executing.
INTERRUPT_LEVEL(n) specifies that the task will execute at @code{@value{RPREFIX}INTERRUPT_LEVEL(n)}
interrupt level n. specifies that the task will execute at interrupt level n.
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} - enable preemption (default) @item @code{@value{RPREFIX}PREEMPT} - enable preemption (default)
@item @code{NO_PREEMPT} - disable preemption @item @code{@value{RPREFIX}NO_PREEMPT} - disable preemption
@item @code{NO_TIMESLICE} - disable timeslicing (default) @item @code{@value{RPREFIX}NO_TIMESLICE} - disable timeslicing (default)
@item @code{TIMESLICE} - enable timeslicing @item @code{@value{RPREFIX}TIMESLICE} - enable timeslicing
@item @code{ASR} - enable ASR processing (default) @item @code{@value{RPREFIX}ASR} - enable ASR processing (default)
@item @code{NO_ASR} - disable ASR processing @item @code{@value{RPREFIX}NO_ASR} - disable ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} - enable all interrupts (default) @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} - enable all interrupts (default)
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} - execute at interrupt level n @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} - execute at interrupt level n
@end itemize @end itemize
@@ -274,12 +274,12 @@ single argument as an index into an array of parameter blocks.
@end ifinfo @end ifinfo
@subsection Floating Point Considerations @subsection Floating Point Considerations
Creating a task with the @code{FLOATING_POINT} flag results in Creating a task with the @code{@value{RPREFIX}FLOATING_POINT} flag results in
additional memory being allocated for the TCB to store the state additional memory being allocated for the TCB to store the state
of the numeric coprocessor during task switches. This of the numeric coprocessor during task switches. This
additional memory is @b{NOT} allocated for @code{NO_FLOATING_POINT} tasks. additional memory is @b{NOT} allocated for @code{@value{RPREFIX}NO_FLOATING_POINT} tasks.
Saving and restoring the context of a @code{FLOATING_POINT} task takes Saving and restoring the context of a @code{@value{RPREFIX}FLOATING_POINT} task takes
longer than that of a @code{NO_FLOATING_POINT} task because of the longer than that of a @code{@value{RPREFIX}NO_FLOATING_POINT} task because of the
relatively large amount of time required for the numeric relatively large amount of time required for the numeric
coprocessor to save or restore its computational state. coprocessor to save or restore its computational state.
@@ -287,41 +287,41 @@ Since RTEMS was designed specifically for embedded military
applications which are floating point intensive, the executive applications which are floating point intensive, the executive
is optimized to avoid unnecessarily saving and restoring the is optimized to avoid unnecessarily saving and restoring the
state of the numeric coprocessor. The state of the numeric state of the numeric coprocessor. The state of the numeric
coprocessor is only saved when a @code{FLOATING_POINT} task is coprocessor is only saved when a @code{@value{RPREFIX}FLOATING_POINT} task is
dispatched and that task was not the last task to utilize the dispatched and that task was not the last task to utilize the
coprocessor. In a system with only one @code{FLOATING_POINT} task, the coprocessor. In a system with only one @code{@value{RPREFIX}FLOATING_POINT} task, the
state of the numeric coprocessor will never be saved or state of the numeric coprocessor will never be saved or
restored. restored.
Although the overhead imposed by @code{FLOATING_POINT} tasks is Although the overhead imposed by @code{@value{RPREFIX}FLOATING_POINT} tasks is
minimal, some applications may wish to completely avoid the minimal, some applications may wish to completely avoid the
overhead associated with @code{FLOATING_POINT} tasks and still utilize overhead associated with @code{@value{RPREFIX}FLOATING_POINT} tasks and still utilize
a numeric coprocessor. By preventing a task from being a numeric coprocessor. By preventing a task from being
preempted while performing a sequence of floating point preempted while performing a sequence of floating point
operations, a @code{NO_FLOATING_POINT} task can utilize the numeric operations, a @code{@value{RPREFIX}NO_FLOATING_POINT} task can utilize the numeric
coprocessor without incurring the overhead of a @code{FLOATING_POINT} coprocessor without incurring the overhead of a @code{@value{RPREFIX}FLOATING_POINT}
context switch. This approach also avoids the allocation of a context switch. This approach also avoids the allocation of a
floating point context area. However, if this approach is taken floating point context area. However, if this approach is taken
by the application designer, NO tasks should be created as by the application designer, NO tasks should be created as
@code{FLOATING_POINT} tasks. Otherwise, the floating point context @code{@value{RPREFIX}FLOATING_POINT} tasks. Otherwise, the floating point context
will not be correctly maintained because RTEMS assumes that the will not be correctly maintained because RTEMS assumes that the
state of the numeric coprocessor will not be altered by state of the numeric coprocessor will not be altered by
@code{NO_FLOATING_POINT} tasks. @code{@value{RPREFIX}NO_FLOATING_POINT} tasks.
If the supported processor type does not have hardware floating If the supported processor type does not have hardware floating
capabilities or a standard numeric coprocessor, RTEMS will not capabilities or a standard numeric coprocessor, RTEMS will not
provide built-in support for hardware floating point on that provide built-in support for hardware floating point on that
processor. In this case, all tasks are considered processor. In this case, all tasks are considered
@code{NO_FLOATING_POINT} whether created as @code{FLOATING_POINT} or @code{@value{RPREFIX}NO_FLOATING_POINT} whether created as @code{@value{RPREFIX}FLOATING_POINT} or
@code{NO_FLOATING_POINT} tasks. A floating point emulation software @code{@value{RPREFIX}NO_FLOATING_POINT} tasks. A floating point emulation software
library must be utilized for floating point operations. library must be utilized for floating point operations.
On some processors, it is possible to disable the floating point On some processors, it is possible to disable the floating point
unit dynamically. If this capability is supported by the target unit dynamically. If this capability is supported by the target
processor, then RTEMS will utilize this capability to enable the processor, then RTEMS will utilize this capability to enable the
floating point unit only for tasks which are created with the floating point unit only for tasks which are created with the
@code{FLOATING_POINT} attribute. The consequence of a @code{@value{RPREFIX}FLOATING_POINT} attribute. The consequence of a
@code{NO_FLOATING_POINT} task attempting to access the floating point @code{@value{RPREFIX}NO_FLOATING_POINT} task attempting to access the floating point
unit is CPU dependent but will i general result in an exception unit is CPU dependent but will i general result in an exception
condition. condition.
@@ -335,10 +335,10 @@ desired components. The set of valid task attribute components
is listed below: is listed below:
@itemize @bullet @itemize @bullet
@item @code{NO_FLOATING_POINT} - does not use coprocessor (default) @item @code{@value{RPREFIX}NO_FLOATING_POINT} - does not use coprocessor (default)
@item @code{FLOATING_POINT} - uses numeric coprocessor @item @code{@value{RPREFIX}FLOATING_POINT} - uses numeric coprocessor
@item @code{LOCAL} - local task (default) @item @code{@value{RPREFIX}LOCAL} - local task (default)
@item @code{GLOBAL} - global task @item @code{@value{RPREFIX}GLOBAL} - global task
@end itemize @end itemize
Attribute values are specifically designed to be mutually Attribute values are specifically designed to be mutually
@@ -347,14 +347,14 @@ equivalent as long as each attribute appears exactly once in the
component list. A component listed as a default is not required component list. A component listed as a default is not required
to appear in the component list, although it is a good to appear in the component list, although it is a good
programming practice to specify default components. If all programming practice to specify default components. If all
defaults are desired, then @code{DEFAULT_ATTRIBUTES} should be used. defaults are desired, then @code{@value{RPREFIX}DEFAULT_ATTRIBUTES} should be used.
This example demonstrates the attribute_set parameter needed to This example demonstrates the attribute_set parameter needed to
create a local task which utilizes the numeric coprocessor. The create a local task which utilizes the numeric coprocessor. The
attribute_set parameter could be @code{FLOATING_POINT} or attribute_set parameter could be @code{@value{RPREFIX}FLOATING_POINT} or
@code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}FLOATING_POINT}. @code{@value{RPREFIX}LOCAL @value{OR} @value{RPREFIX}FLOATING_POINT}.
The attribute_set parameter can be set to The attribute_set parameter can be set to
@code{FLOATING_POINT} because @code{LOCAL} is the default for all created @code{@value{RPREFIX}FLOATING_POINT} because @code{@value{RPREFIX}LOCAL} is the default for all created
tasks. If the task were global and used the numeric tasks. If the task were global and used the numeric
coprocessor, then the attribute_set parameter would be coprocessor, then the attribute_set parameter would be
@code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}FLOATING_POINT}. @code{@value{RPREFIX}GLOBAL @value{OR} @value{RPREFIX}FLOATING_POINT}.
@@ -371,29 +371,29 @@ listed below:
@ifset use-ascii @ifset use-ascii
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} is masked by @item @code{@value{RPREFIX}PREEMPT} is masked by
@code{PREEMPT_MASK} and enables preemption @code{@value{RPREFIX}PREEMPT_MASK} and enables preemption
@item @code{NO_PREEMPT} is masked by @item @code{@value{RPREFIX}NO_PREEMPT} is masked by
@code{PREEMPT_MASK} and disables preemption @code{@value{RPREFIX}PREEMPT_MASK} and disables preemption
@item @code{NO_TIMESLICE} is masked by @item @code{@value{RPREFIX}NO_TIMESLICE} is masked by
@code{TIMESLICE_MASK} and disables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and disables timeslicing
@item @code{TIMESLICE} is masked by @item @code{@value{RPREFIX}TIMESLICE} is masked by
@code{TIMESLICE_MASK} and enables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and enables timeslicing
@item @code{ASR} is masked by @item @code{@value{RPREFIX}ASR} is masked by
@code{ASR_MASK} and enables ASR processing @code{@value{RPREFIX}ASR_MASK} and enables ASR processing
@item @code{NO_ASR} is masked by @item @code{@value{RPREFIX}NO_ASR} is masked by
@code{ASR_MASK} and disables ASR processing @code{@value{RPREFIX}ASR_MASK} and disables ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by
@code{INTERRUPT_MASK} and enables all interrupts @code{@value{RPREFIX}INTERRUPT_MASK} and enables all interrupts
@item @code{@value{RPREFIX}INTERRUPT_LEVEL}(n)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} is masked by
@code{INTERRUPT_MASK} and sets interrupts level n @code{@value{RPREFIX}INTERRUPT_MASK} and sets interrupts level n
@end itemize @end itemize
@end ifset @end ifset
@@ -401,29 +401,29 @@ listed below:
@sp 1 @sp 1
@c this is temporary @c this is temporary
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} is masked by @item @code{@value{RPREFIX}PREEMPT} is masked by
@code{PREEMPT_MASK} and enables preemption @code{@value{RPREFIX}PREEMPT_MASK} and enables preemption
@item @code{NO_PREEMPT} is masked by @item @code{@value{RPREFIX}NO_PREEMPT} is masked by
@code{PREEMPT_MASK} and disables preemption @code{@value{RPREFIX}PREEMPT_MASK} and disables preemption
@item @code{NO_TIMESLICE} is masked by @item @code{@value{RPREFIX}NO_TIMESLICE} is masked by
@code{TIMESLICE_MASK} and disables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and disables timeslicing
@item @code{TIMESLICE} is masked by @item @code{@value{RPREFIX}TIMESLICE} is masked by
@code{TIMESLICE_MASK} and enables timeslicing @code{@value{RPREFIX}TIMESLICE_MASK} and enables timeslicing
@item @code{ASR} is masked by @item @code{@value{RPREFIX}ASR} is masked by
@code{ASR_MASK} and enables ASR processing @code{@value{RPREFIX}ASR_MASK} and enables ASR processing
@item @code{NO_ASR} is masked by @item @code{@value{RPREFIX}NO_ASR} is masked by
@code{ASR_MASK} and disables ASR processing @code{@value{RPREFIX}ASR_MASK} and disables ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} is masked by
@code{INTERRUPT_MASK} and enables all interrupts @code{@value{RPREFIX}INTERRUPT_MASK} and enables all interrupts
@item @code{@value{RPREFIX}INTERRUPT_LEVEL}(n)} is masked by @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} is masked by
@code{INTERRUPT_MASK} and sets interrupts level n @code{@value{RPREFIX}INTERRUPT_MASK} and sets interrupts level n
@end itemize @end itemize
@@ -476,7 +476,7 @@ long as each mode appears exactly once in the component list. A
mode component listed as a default is not required to appear in mode component listed as a default is not required to appear in
the mode component list, although it is a good programming the mode component list, although it is a good programming
practice to specify default components. If all defaults are practice to specify default components. If all defaults are
desired, the mode @code{DEFAULT_MODES} and the mask @code{ALL_MODE_MASKS} desired, the mode @code{@value{RPREFIX}DEFAULT_MODES} and the mask @code{@value{RPREFIX}ALL_MODE_MASKS}
should be used. should be used.
The following example demonstrates the mode and mask parameters The following example demonstrates the mode and mask parameters
@@ -598,7 +598,7 @@ The task_wake_after directive creates a sleep timer which allows
a task to go to sleep for a specified interval. The task is a task to go to sleep for a specified interval. The task is
blocked until the delay interval has elapsed, at which time the blocked until the delay interval has elapsed, at which time the
task is unblocked. A task calling the task_wake_after directive task is unblocked. A task calling the task_wake_after directive
with a delay interval of @code{YIELD_PROCESSOR} ticks will yield the with a delay interval of @code{@value{RPREFIX}YIELD_PROCESSOR} ticks will yield the
processor to any other ready task of equal or greater priority processor to any other ready task of equal or greater priority
and remain ready to execute. and remain ready to execute.
@@ -744,23 +744,23 @@ procedure Task_Create (
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{@value{RPREFIX}SUCCESSFUL} - task created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task created successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{INVALID_SIZE} - stack too small@* @code{@value{RPREFIX}INVALID_SIZE} - stack too small@*
@code{INVALID_PRIORITY} - invalid task priority@* @code{@value{RPREFIX}INVALID_PRIORITY} - invalid task priority@*
@code{MP_NOT_CONFIGURED} - multiprocessing not configured@* @code{@value{RPREFIX}MP_NOT_CONFIGURED} - multiprocessing not configured@*
@code{TOO_MANY} - too many tasks created@* @code{@value{RPREFIX}TOO_MANY} - too many tasks created@*
@code{UNSATISFIED} - not enough memory for stack/FP context@* @code{@value{RPREFIX}UNSATISFIED} - not enough memory for stack/FP context@*
@code{TOO_MANY} - too many global objects @code{@value{RPREFIX}TOO_MANY} - too many global objects
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive creates a task which resides on the local node. This directive creates a task which resides on the local node.
It allocates and initializes a TCB, a stack, and an optional It allocates and initializes a TCB, a stack, and an optional
floating point context area. The mode parameter contains values floating point context area. The mode parameter contains values
which sets the task's initial execution mode. The which sets the task's initial execution mode. The
@code{FLOATING_POINT} attribute should be specified if the created task @code{@value{RPREFIX}FLOATING_POINT} attribute should be specified if the created task
is to use a numeric coprocessor. For performance reasons, it is is to use a numeric coprocessor. For performance reasons, it is
recommended that tasks not using the numeric coprocessor should recommended that tasks not using the numeric coprocessor should
specify the @code{NO_FLOATING_POINT} attribute. If the GLOBAL specify the @code{@value{RPREFIX}NO_FLOATING_POINT} attribute. If the GLOBAL
attribute is specified, the task can be accessed from remote attribute is specified, the task can be accessed from remote
nodes. The task id, returned in id, is used in other task nodes. The task id, returned in id, is used in other task
related directives to access the task. When created, a task is related directives to access the task. When created, a task is
@@ -776,8 +776,8 @@ RTEMS supports a maximum of 256 interrupt levels which are
mapped onto the interrupt levels actually supported by the mapped onto the interrupt levels actually supported by the
target processor. target processor.
The requested stack size should be at least @code{MINIMUM_STACK_SIZE} The requested stack size should be at least @code{@value{RPREFIX}MINIMUM_STACK_SIZE}
bytes. The value of @code{MINIMUM_STACK_SIZE} is processor dependent. bytes. The value of @code{@value{RPREFIX}MINIMUM_STACK_SIZE} is processor dependent.
Application developers should consider the stack usage of the Application developers should consider the stack usage of the
device drivers when calculating the stack size required for device drivers when calculating the stack size required for
tasks which utilize the driver. tasks which utilize the driver.
@@ -785,21 +785,21 @@ tasks which utilize the driver.
The following task attribute constants are defined by RTEMS: The following task attribute constants are defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{NO_FLOATING_POINT} - does not use coprocessor (default) @item @code{@value{RPREFIX}NO_FLOATING_POINT} - does not use coprocessor (default)
@item @code{FLOATING_POINT} - uses numeric coprocessor @item @code{@value{RPREFIX}FLOATING_POINT} - uses numeric coprocessor
@item @code{LOCAL} - local task (default) @item @code{@value{RPREFIX}LOCAL} - local task (default)
@item @code{GLOBAL} - global task @item @code{@value{RPREFIX}GLOBAL} - global task
@end itemize @end itemize
The following task mode constants are defined by RTEMS: The following task mode constants are defined by RTEMS:
@itemize @bullet @itemize @bullet
@item @code{PREEMPT} - enable preemption (default) @item @code{@value{RPREFIX}PREEMPT} - enable preemption (default)
@item @code{NO_PREEMPT} - disable preemption @item @code{@value{RPREFIX}NO_PREEMPT} - disable preemption
@item @code{NO_TIMESLICE} - disable timeslicing (default) @item @code{@value{RPREFIX}NO_TIMESLICE} - disable timeslicing (default)
@item @code{TIMESLICE} - enable timeslicing @item @code{@value{RPREFIX}TIMESLICE} - enable timeslicing
@item @code{ASR} - enable ASR processing (default) @item @code{@value{RPREFIX}ASR} - enable ASR processing (default)
@item @code{NO_ASR} - disable ASR processing @item @code{@value{RPREFIX}NO_ASR} - disable ASR processing
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} - enable all interrupts (default) @item @code{@value{RPREFIX}INTERRUPT_LEVEL(0)} - enable all interrupts (default)
@item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} - execute at interrupt level n @item @code{@value{RPREFIX}INTERRUPT_LEVEL(n)} - execute at interrupt level n
@end itemize @end itemize
@@ -845,14 +845,14 @@ procedure Task_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task identified successfully@*
@code{INVALID_NAME} - invalid task name@* @code{@value{RPREFIX}INVALID_NAME} - invalid task name@*
@code{INVALID_NODE} - invalid node id @code{@value{RPREFIX}INVALID_NODE} - invalid node id
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive obtains the task id associated with the task name This directive obtains the task id associated with the task name
specified in name. A task may obtain its own id by specifying specified in name. A task may obtain its own id by specifying
@code{SELF} or its own task name in name. If the task name is not @code{@value{RPREFIX}SELF} or its own task name in name. If the task name is not
unique, then the task id returned will match one of the tasks unique, then the task id returned will match one of the tasks
with that name. However, this task id is not guaranteed to with that name. However, this task id is not guaranteed to
correspond to the desired task. The task id, returned in id, is correspond to the desired task. The task id, returned in id, is
@@ -861,7 +861,7 @@ used in other task related directives to access the task.
@subheading NOTES: @subheading NOTES:
This directive will not cause the running task to be preempted. This directive will not cause the running task to be preempted.
If node is @code{SEARCH_ALL_NODES}, all nodes are searched with the If node is @code{@value{RPREFIX}SEARCH_ALL_NODES}, all nodes are searched with the
local node being searched first. All other nodes are searched local node being searched first. All other nodes are searched
with the lowest numbered node searched first. with the lowest numbered node searched first.
@@ -902,11 +902,11 @@ procedure Task_Start (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - ask started successfully@* @code{@value{RPREFIX}SUCCESSFUL} - ask started successfully@*
@code{INVALID_ADDRESS} - invalid task entry point@* @code{@value{RPREFIX}INVALID_ADDRESS} - invalid task entry point@*
@code{INVALID_ID} - invalid task id@* @code{@value{RPREFIX}INVALID_ID} - invalid task id@*
@code{INCORRECT_STATE} - task not in the dormant state@* @code{@value{RPREFIX}INCORRECT_STATE} - task not in the dormant state@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot start remote task @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot start remote task
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive readies the task, specified by tid, for execution This directive readies the task, specified by tid, for execution
@@ -952,10 +952,10 @@ procedure Task_Restart (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task restarted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task restarted successfully@*
@code{INVALID_ID} - task id invalid@* @code{@value{RPREFIX}INVALID_ID} - task id invalid@*
@code{INCORRECT_STATE} - task never started@* @code{@value{RPREFIX}INCORRECT_STATE} - task never started@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot restart remote task @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot restart remote task
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive resets the task specified by id to begin This directive resets the task specified by id to begin
@@ -976,7 +976,7 @@ task, and allowing that task to release resources back to RTEMS
and then delete itself. and then delete itself.
@subheading NOTES: @subheading NOTES:
If id is @code{SELF}, the calling task will be restarted and will not If id is @code{@value{RPREFIX}SELF}, the calling task will be restarted and will not
return from this directive. return from this directive.
The calling task will be preempted if its preemption mode is The calling task will be preempted if its preemption mode is
@@ -1011,15 +1011,15 @@ procedure Task_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task restarted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task restarted successfully@*
@code{INVALID_ID} - task id invalid@* @code{@value{RPREFIX}INVALID_ID} - task id invalid@*
@code{ILLEGAL_ON_REMOTE_OBJECT} - cannot restart remote task @code{@value{RPREFIX}ILLEGAL_ON_REMOTE_OBJECT} - cannot restart remote task
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive deletes a task, either the calling task or This directive deletes a task, either the calling task or
another task, as specified by id. RTEMS stops the execution of another task, as specified by id. RTEMS stops the execution of
the task and reclaims the stack memory, any allocated delay or the task and reclaims the stack memory, any allocated delay or
timeout timers, the TCB, and, if the task is @code{FLOATING_POINT}, its timeout timers, the TCB, and, if the task is @code{@value{RPREFIX}FLOATING_POINT}, its
floating point context area. RTEMS does not reclaim the floating point context area. RTEMS does not reclaim the
following resources: region segments, partition buffers, following resources: region segments, partition buffers,
semaphores, timers, or rate monotonic periods. semaphores, timers, or rate monotonic periods.
@@ -1034,7 +1034,7 @@ resources before deletion. A task can be directed to release
its resources and delete itself by restarting it with a special its resources and delete itself by restarting it with a special
argument or by sending it a message, an event, or a signal. argument or by sending it a message, an event, or a signal.
Deletion of the current task (@code{SELF}) will force RTEMS to select Deletion of the current task (@code{@value{RPREFIX}SELF}) will force RTEMS to select
another task to execute. another task to execute.
When a global task is deleted, the task id must be transmitted When a global task is deleted, the task id must be transmitted
@@ -1070,9 +1070,9 @@ procedure Task_Suspend (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task restarted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task restarted successfully@*
@code{INVALID_ID} - task id invalid@* @code{@value{RPREFIX}INVALID_ID} - task id invalid@*
@code{ALREADY_SUSPENDED} - task already suspended @code{@value{RPREFIX}ALREADY_SUSPENDED} - task already suspended
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive suspends the task specified by id from further This directive suspends the task specified by id from further
@@ -1083,7 +1083,7 @@ the task_resume directive for this task and any blocked state
has been removed. has been removed.
@subheading NOTES: @subheading NOTES:
The requesting task can suspend itself by specifying @code{SELF} as id. The requesting task can suspend itself by specifying @code{@value{RPREFIX}SELF} as id.
In this case, the task will be suspended and a successful In this case, the task will be suspended and a successful
return code will be returned when the task is resumed. return code will be returned when the task is resumed.
@@ -1120,9 +1120,9 @@ procedure Task_Resume (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task restarted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task restarted successfully@*
@code{INVALID_ID} - task id invalid@* @code{@value{RPREFIX}INVALID_ID} - task id invalid@*
@code{INCORRECT_STATE} - task not suspended @code{@value{RPREFIX}INCORRECT_STATE} - task not suspended
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive removes the task specified by id from the This directive removes the task specified by id from the
@@ -1172,13 +1172,13 @@ procedure Task_Set_Priority (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task priority set successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task priority set successfully@*
@code{INVALID_ID} - invalid task id@* @code{@value{RPREFIX}INVALID_ID} - invalid task id@*
@code{INVALID_PRIORITY} - invalid task priority @code{@value{RPREFIX}INVALID_PRIORITY} - invalid task priority
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive manipulates the priority of the task specified by This directive manipulates the priority of the task specified by
id. An id of @code{SELF} is used to indicate the calling task. When id. An id of @code{@value{RPREFIX}SELF} is used to indicate the calling task. When
new_priority is not equal to CURRENT_PRIORITY, the specified new_priority is not equal to CURRENT_PRIORITY, the specified
task's previous priority is returned in old_priority. When task's previous priority is returned in old_priority. When
new_priority is CURRENT_PRIORITY, the specified task's current new_priority is CURRENT_PRIORITY, the specified task's current
@@ -1234,7 +1234,7 @@ procedure Task_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task mode set successfully @code{@value{RPREFIX}SUCCESSFUL} - task mode set successfully
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive manipulates the execution mode of the calling This directive manipulates the execution mode of the calling
@@ -1252,7 +1252,7 @@ a higher priority task is ready to run.
Enabling timeslicing has no effect if preemption is enabled. Enabling timeslicing has no effect if preemption is enabled.
A task can obtain its current execution mode, without modifying A task can obtain its current execution mode, without modifying
it, by calling this directive with a mask value of @code{CURRENT_MODE}. it, by calling this directive with a mask value of @code{@value{RPREFIX}CURRENT_MODE}.
To temporarily disable the processing of a valid ASR, a task To temporarily disable the processing of a valid ASR, a task
should call this directive with the NO_ASR indicator specified should call this directive with the NO_ASR indicator specified
@@ -1360,9 +1360,9 @@ procedure Task_Get_Note (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - note obtained successfully@* @code{@value{RPREFIX}SUCCESSFUL} - note obtained successfully@*
@code{INVALID_ID} - invalid task id@* @code{@value{RPREFIX}INVALID_ID} - invalid task id@*
@code{INVALID_NUMBER} - invalid notepad location @code{@value{RPREFIX}INVALID_NUMBER} - invalid notepad location
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive returns the note contained in the notepad This directive returns the note contained in the notepad
@@ -1371,14 +1371,14 @@ location of the task specified by id.
@subheading NOTES: @subheading NOTES:
This directive will not cause the running task to be preempted. This directive will not cause the running task to be preempted.
If id is set to @code{SELF}, the calling task accesses its own notepad. If id is set to @code{@value{RPREFIX}SELF}, the calling task accesses its own notepad.
@c This version of the paragraph avoids the overfull hbox error. @c This version of the paragraph avoids the overfull hbox error.
@c The constants NOTEPAD_0 through NOTEPAD_15 can be used to access the @c The constants NOTEPAD_0 through NOTEPAD_15 can be used to access the
@c sixteen notepad locations. @c sixteen notepad locations.
The sixteen notepad locations can be accessed using the constants The sixteen notepad locations can be accessed using the constants
@code{NOTEPAD_0} through @code{NOTEPAD_15}. @code{@value{RPREFIX}NOTEPAD_0} through @code{@value{RPREFIX}NOTEPAD_15}.
Getting a note of a global task which does not reside on the Getting a note of a global task which does not reside on the
local node will generate a request to the remote node to obtain local node will generate a request to the remote node to obtain
@@ -1414,16 +1414,16 @@ procedure Task_Set_Note (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - task's note set successfully@* @code{@value{RPREFIX}SUCCESSFUL} - task's note set successfully@*
@code{INVALID_ID} - invalid task id@* @code{@value{RPREFIX}INVALID_ID} - invalid task id@*
@code{INVALID_NUMBER} - invalid notepad location @code{@value{RPREFIX}INVALID_NUMBER} - invalid notepad location
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive sets the notepad entry for the task specified by This directive sets the notepad entry for the task specified by
id to the value note. id to the value note.
@subheading NOTES: @subheading NOTES:
If id is set to @code{SELF}, the calling task accesses its own notepad If id is set to @code{@value{RPREFIX}SELF}, the calling task accesses its own notepad
locations. locations.
This directive will not cause the running task to be preempted. This directive will not cause the running task to be preempted.
@@ -1433,7 +1433,7 @@ This directive will not cause the running task to be preempted.
@c sixteen notepad locations. @c sixteen notepad locations.
The sixteen notepad locations can be accessed using the constants The sixteen notepad locations can be accessed using the constants
@code{NOTEPAD_0} through @code{NOTEPAD_15}. @code{@value{RPREFIX}NOTEPAD_0} through @code{@value{RPREFIX}NOTEPAD_15}.
Setting a notepad location of a global task which does not Setting a notepad location of a global task which does not
reside on the local node will generate a request to the remote reside on the local node will generate a request to the remote
@@ -1465,7 +1465,7 @@ procedure Task_Wake_After (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - always successful @code{@value{RPREFIX}SUCCESSFUL} - always successful
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive blocks the calling task for the specified number This directive blocks the calling task for the specified number
@@ -1478,7 +1478,7 @@ Setting the system date and time with the clock_set directive
has no effect on a task_wake_after blocked task. has no effect on a task_wake_after blocked task.
A task may give up the processor and remain in the ready state A task may give up the processor and remain in the ready state
by specifying a value of @code{YIELD_PROCESSOR} in ticks. by specifying a value of @code{@value{RPREFIX}YIELD_PROCESSOR} in ticks.
The maximum timer interval that can be specified is the maximum The maximum timer interval that can be specified is the maximum
value which can be represented by the rtems_unsigned32 type. value which can be represented by the rtems_unsigned32 type.
@@ -1512,9 +1512,9 @@ procedure Task_Wake_When (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - awakened at date/time successfully@* @code{@value{RPREFIX}SUCCESSFUL} - awakened at date/time successfully@*
@code{INVALID_TIME_OF_DAY} - invalid time buffer@* @code{INVALID_TIME_OF_DAY} - invalid time buffer@*
@code{NOT_DEFINED} - system date and time is not set @code{@value{RPREFIX}NOT_DEFINED} - system date and time is not set
@subheading DESCRIPTION: @subheading DESCRIPTION:
This directive blocks a task until the date and time specified This directive blocks a task until the date and time specified

52
doc/user/timer.t
View File

@@ -28,13 +28,13 @@ The timer manager provides support for timer
facilities. The directives provided by the timer manager are: facilities. The directives provided by the timer manager are:
@itemize @bullet @itemize @bullet
@item @code{timer_create} - Create a timer @item @code{@value{DIRPREFIX}timer_create} - Create a timer
@item @code{timer_ident} - Get ID of a timer @item @code{@value{DIRPREFIX}timer_ident} - Get ID of a timer
@item @code{timer_cancel} - Cancel a timer @item @code{@value{DIRPREFIX}timer_cancel} - Cancel a timer
@item @code{timer_delete} - Delete a timer @item @code{@value{DIRPREFIX}timer_delete} - Delete a timer
@item @code{timer_fire_after} - Fire timer after interval @item @code{@value{DIRPREFIX}timer_fire_after} - Fire timer after interval
@item @code{timer_fire_when} - Fire timer when specified @item @code{@value{DIRPREFIX}timer_fire_when} - Fire timer when specified
@item @code{timer_reset} - Reset an interval timer @item @code{@value{DIRPREFIX}timer_reset} - Reset an interval timer
@end itemize @end itemize
@@ -258,9 +258,9 @@ procedure Timer_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer created successfully@*
@code{INVALID_NAME} - invalid timer name@* @code{@value{RPREFIX}INVALID_NAME} - invalid timer name@*
@code{TOO_MANY} - too many timers created @code{@value{RPREFIX}TOO_MANY} - too many timers created
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -303,8 +303,8 @@ procedure Timer_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer identified successfully@*
@code{INVALID_NAME} - timer name not found @code{@value{RPREFIX}INVALID_NAME} - timer name not found
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -346,8 +346,8 @@ procedure Timer_Cancel (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer canceled successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer canceled successfully@*
@code{INVALID_ID} - invalid timer id @code{@value{RPREFIX}INVALID_ID} - invalid timer id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -385,8 +385,8 @@ procedure Timer_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer deleted successfully@*
@code{INVALID_ID} - invalid timer id @code{@value{RPREFIX}INVALID_ID} - invalid timer id
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -434,9 +434,9 @@ procedure Timer_Fire_After (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer initiated successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer initiated successfully@*
@code{INVALID_ID} - invalid timer id@* @code{@value{RPREFIX}INVALID_ID} - invalid timer id@*
@code{INVALID_NUMBER} - invalid interval @code{@value{RPREFIX}INVALID_NUMBER} - invalid interval
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -484,10 +484,10 @@ procedure Timer_Fire_When (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer initiated successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer initiated successfully@*
@code{INVALID_ID} - invalid timer id@* @code{@value{RPREFIX}INVALID_ID} - invalid timer id@*
@code{NOT_DEFINED} - system date and time is not set@* @code{@value{RPREFIX}NOT_DEFINED} - system date and time is not set@*
@code{INVALID_CLOCK} - invalid time of day @code{@value{RPREFIX}INVALID_CLOCK} - invalid time of day
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -529,9 +529,9 @@ procedure Timer_Reset (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - timer reset successfully@* @code{@value{RPREFIX}SUCCESSFUL} - timer reset successfully@*
@code{INVALID_ID} - invalid timer id@* @code{@value{RPREFIX}INVALID_ID} - invalid timer id@*
@code{NOT_DEFINED} - attempted to reset a when or newly created timer @code{@value{RPREFIX}NOT_DEFINED} - attempted to reset a when or newly created timer
@subheading DESCRIPTION: @subheading DESCRIPTION:

22
doc/user/userext.t
View File

@@ -31,9 +31,9 @@ system events. The directives provided by the user extensions
manager are: manager are:
@itemize @bullet @itemize @bullet
@item @code{extension_create} - Create an extension set @item @code{@value{DIRPREFIX}extension_create} - Create an extension set
@item @code{extension_ident} - Get ID of an extension set @item @code{@value{DIRPREFIX}extension_ident} - Get ID of an extension set
@item @code{extension_delete} - Delete an extension set @item @code{@value{DIRPREFIX}extension_delete} - Delete an extension set
@end itemize @end itemize
@ifinfo @ifinfo
@@ -498,7 +498,7 @@ recover, then a fatal error may be reported. If the user does
not provide a TASK_EXITTED extension or the provided handler not provide a TASK_EXITTED extension or the provided handler
returns control to RTEMS, then the RTEMS default handler will be returns control to RTEMS, then the RTEMS default handler will be
used. This default handler invokes the directive used. This default handler invokes the directive
fatal_error_occurred with the @code{TASK_EXITTED} directive status. fatal_error_occurred with the @code{@value{RPREFIX}TASK_EXITTED} directive status.
@lowersections @lowersections
@@ -688,9 +688,9 @@ procedure Extension_Create (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - extension set created successfully@* @code{@value{RPREFIX}SUCCESSFUL} - extension set created successfully@*
@code{INVALID_NAME} - invalid extension set name@* @code{@value{RPREFIX}INVALID_NAME} - invalid extension set name@*
@code{TOO_MANY} - too many extension sets created @code{@value{RPREFIX}TOO_MANY} - too many extension sets created
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -734,8 +734,8 @@ procedure Extension_Ident (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - extension set identified successfully@* @code{@value{RPREFIX}SUCCESSFUL} - extension set identified successfully@*
@code{INVALID_NAME} - extension set name not found @code{@value{RPREFIX}INVALID_NAME} - extension set name not found
@subheading DESCRIPTION: @subheading DESCRIPTION:
@@ -778,8 +778,8 @@ procedure Extension_Delete (
@end ifset @end ifset
@subheading DIRECTIVE STATUS CODES: @subheading DIRECTIVE STATUS CODES:
@code{SUCCESSFUL} - extension set deleted successfully@* @code{@value{RPREFIX}SUCCESSFUL} - extension set deleted successfully@*
@code{INVALID_ID} - invalid extension set id @code{@value{RPREFIX}INVALID_ID} - invalid extension set id
@subheading DESCRIPTION: @subheading DESCRIPTION: