Introduce Thread_queue_Lock_context to contain the context necessary for
thread queue lock and thread wait lock acquire/release operations to
reduce the Thread_Control size.
Clock disciplines may be WATCHDOG_RELATIVE, WATCHDOG_ABSOLUTE,
or WATCHDOG_NO_TIMEOUT. A discipline of WATCHDOG_RELATIVE with
a timeout of WATCHDOG_NO_TIMEOUT is equivalent to a discipline
of WATCHDOG_NO_TIMEOUT.
updates #2732
Import the <arpa/inet.h> from current FreeBSD. Necessary due to changes
in <netinet/in.h>. Remove BSD hack from <arpa/inet.h>.
Clean up problems with htonl(). These functions are defined in
<arpa/inet.h>. This lead to some problems because they are defined in
<rtems/endian.h> too. Add NTOHL, ... to
<rtems/rtems_bsdnet_internal.h>.
Import the <netinet/in.h> from current FreeBSD. This allows to build
some current software (e.g. libressl).
Add legacy support like
* prototype for in_cksum(),
* IPPORT_USERRESERVED,
* deprecated IPCTL_RT* defines,
* ip_fw_chk_t and ip_fw_ctl_t,
* ip_nat_... (IP NAT hooks), and
* IP_NAT option for get/setsockopt()
to new <rtems/rtems_netinet_in.h>.
Import the <netdb.h> from current FreeBSD. This allows to build some
current software (e.g. libressl).
Add __h_errno().
Update gethostent_r() API. Linux and FreeBSD use a common API now.
Adapt the RTEMS one to provide the same one.
Match gethostbyname_r() with prototype.
Add CORE_recursive_mutex_Control and CORE_ceiling_mutex_Control to avoid
the run-time evaluation of attributes to figure out how a particular
mutex methods should behave. Start with the no protocol variants. This
eliminates the CORE_MUTEX_DISCIPLINES_FIFO and
CORE_MUTEX_DISCIPLINES_PRIORITY disciplines.
Add _Thread_queue_Context_set_MP_callout() to simplify
_Thread_queue_Context_initialize(). This makes it possible to more
easily add additional fields to Thread_queue_Context.
Unify the status codes of the Classic and POSIX API to use the new enum
Status_Control. This eliminates the Thread_Control::Wait::timeout_code
field and the timeout parameter of _Thread_queue_Enqueue_critical() and
_MPCI_Send_request_packet(). It gets rid of the status code translation
tables and instead uses simple bit operations to get the status for a
particular API. This enables translation of status code constants at
compile time. Add _Thread_Wait_get_status() to avoid direct access of
thread internal data structures.
Drop the multiprocessing (MP) dependent callout parameter from the
thread queue extract, dequeue, flush and unblock methods. Merge this
parameter with the lock context into new structure Thread_queue_Context.
This helps to gets rid of the conditionally compiled method call
helpers.
The thread queue implementation was heavily reworked to support SMP.
This broke the multiprocessing support of the thread queues. This is
fixed by this patch.
A thread proxy is unblocked due to three reasons
1) timeout,
2) request satisfaction, and
3) extraction.
In case 1) no MPCI message must be sent. This is ensured via the
_Thread_queue_MP_callout_do_nothing() callout set during
_Thread_MP_Allocate_proxy().
In case 2) and 3) an MPCI message must be sent. In case we interrupt
the blocking operation during _Thread_queue_Enqueue_critical(), then
this message must be sent by the blocking thread. For this the new
fields Thread_Proxy_control::thread_queue_callout and
Thread_Proxy_control::thread_queue_id are used.
Delete the individual API MP callout types and use
Thread_queue_MP_callout throughout. This type is only defined in
multiprocessing configurations. Prefix the multiprocessing parameters
with mp_ to ease code review. Multiprocessing specific parameters are
optional due to use of a similar macro pattern. There is no overhead
for non-multiprocessing configurations.
Apparently 'free' is defined as a macro which takes two arguments and calls
rtems_bsdnet_free. When fixing #2405 I added a missing 'free' but didn't notice
it was non-standard.
Closes#2410.
