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2002-04-08 Chris Johns <ccj@acm.org>

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* Per PR142, make task switch extension its own list.
	* include/rtems/score/userext.h: Reflect above by adding 
	User_extensions_Switch_control and adding it to User_extenions_Control.
	* inline/rtems/score/userext.inl: Allocate all memory in one chunk
	to minimize overhead.  Address processing dedicated switch chain.
This commit is contained in:
Joel Sherrill
2002-04-08 17:23:11 +00:00
parent 7b705dc38a
commit 7af623bf68
4 changed files with 134 additions and 70 deletions
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8
c/src/exec/score/ChangeLog
View File

@@ -1,3 +1,11 @@
2002-04-08 Chris Johns <ccj@acm.org>
* Per PR142, make task switch extension its own list.
* include/rtems/score/userext.h: Reflect above by adding
User_extensions_Switch_control and adding it to User_extenions_Control.
* inline/rtems/score/userext.inl: Allocate all memory in one chunk
to minimize overhead. Address processing dedicated switch chain.
2002-03-27 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* cpu/Makefile.am: Remove AUTOMAKE_OPTIONS.

84
c/src/exec/score/inline/rtems/score/userext.inl
View File

@@ -18,6 +18,33 @@
#include <rtems/score/wkspace.h>
/*PAGE
*
* _User_extensions_Add_set
*
* DESCRIPTION:
*
* This routine is used to add a user extension set to the active list.
*/
RTEMS_INLINE_ROUTINE void _User_extensions_Add_set (
User_extensions_Control *the_extension,
User_extensions_Table *extension_table
)
{
the_extension->Callouts = *extension_table;
_Chain_Append( &_User_extensions_List, &the_extension->Node );
/*
* If a switch handler is present, append it to the switch chain.
*/
if ( extension_table->thread_switch != NULL ) {
the_extension->Switch.thread_switch = extension_table->thread_switch;
_Chain_Append( &_User_extensions_Switches_list, &the_extension->Switch.Node );
}
}
/*PAGE
*
* _User_extensions_Handler_initialization
@@ -36,40 +63,31 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Handler_initialization (
unsigned32 i;
_Chain_Initialize_empty( &_User_extensions_List );
_Chain_Initialize_empty( &_User_extensions_Switches_list );
if ( initial_extensions ) {
for (i=0 ; i<number_of_extensions ; i++ ) {
extension =
_Workspace_Allocate_or_fatal_error( sizeof(User_extensions_Control) );
_Workspace_Allocate_or_fatal_error(
number_of_extensions * sizeof( User_extensions_Control )
);
extension->Callouts = initial_extensions[i];
_Chain_Append( &_User_extensions_List, &extension->Node );
memset (
extension,
0,
number_of_extensions * sizeof( User_extensions_Control )
);
for ( i = 0 ; i < number_of_extensions ; i++ ) {
_User_extensions_Add_set (extension, &initial_extensions[i]);
extension++;
}
}
}
/*PAGE
*
* _User_extensions_Add_set
*
* DESCRIPTION:
*
* This routine is used to add a user extension set to the active list.
*/
RTEMS_INLINE_ROUTINE void _User_extensions_Add_set (
User_extensions_Control *the_extension,
User_extensions_Table *extension_table
)
{
the_extension->Callouts = *extension_table;
_Chain_Append( &_User_extensions_List, &the_extension->Node );
}
/*PAGE
*
* _User_extensions_Add_API_set
*
* DESCRIPTION:
*
* This routine is used to add an API extension set to the active list.
@@ -79,7 +97,7 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Add_API_set (
User_extensions_Control *the_extension
)
{
_Chain_Prepend( &_User_extensions_List, &the_extension->Node );
_User_extensions_Add_set( the_extension );
}
/*PAGE
@@ -96,6 +114,13 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Remove_set (
)
{
_Chain_Extract( &the_extension->Node );
/*
* If a switch handler is present, remove it.
*/
if ( the_extension->Callouts.thread_switch != NULL )
_Chain_Extract( &the_extension->Switch.Node );
}
/*PAGE
@@ -114,16 +139,15 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Thread_switch (
)
{
Chain_Node *the_node;
User_extensions_Control *the_extension;
User_extensions_Switch_control *the_extension_switch;
for ( the_node = _User_extensions_List.first ;
!_Chain_Is_tail( &_User_extensions_List, the_node ) ;
for ( the_node = _User_extensions_Switches_list.first ;
!_Chain_Is_tail( &_User_extensions_Switches_list, the_node ) ;
the_node = the_node->next ) {
the_extension = (User_extensions_Control *) the_node;
the_extension_switch = (User_extensions_Switch_control *) the_node;
if ( the_extension->Callouts.thread_switch != NULL )
(*the_extension->Callouts.thread_switch)( executing, heir );
(*the_extension_switch->thread_switch)( executing, heir );
}
}

8
cpukit/score/ChangeLog
View File

@@ -1,3 +1,11 @@
2002-04-08 Chris Johns <ccj@acm.org>
* Per PR142, make task switch extension its own list.
* include/rtems/score/userext.h: Reflect above by adding
User_extensions_Switch_control and adding it to User_extenions_Control.
* inline/rtems/score/userext.inl: Allocate all memory in one chunk
to minimize overhead. Address processing dedicated switch chain.
2002-03-27 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* cpu/Makefile.am: Remove AUTOMAKE_OPTIONS.

84
cpukit/score/inline/rtems/score/userext.inl
View File

@@ -18,6 +18,33 @@
#include <rtems/score/wkspace.h>
/*PAGE
*
* _User_extensions_Add_set
*
* DESCRIPTION:
*
* This routine is used to add a user extension set to the active list.
*/
RTEMS_INLINE_ROUTINE void _User_extensions_Add_set (
User_extensions_Control *the_extension,
User_extensions_Table *extension_table
)
{
the_extension->Callouts = *extension_table;
_Chain_Append( &_User_extensions_List, &the_extension->Node );
/*
* If a switch handler is present, append it to the switch chain.
*/
if ( extension_table->thread_switch != NULL ) {
the_extension->Switch.thread_switch = extension_table->thread_switch;
_Chain_Append( &_User_extensions_Switches_list, &the_extension->Switch.Node );
}
}
/*PAGE
*
* _User_extensions_Handler_initialization
@@ -36,40 +63,31 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Handler_initialization (
unsigned32 i;
_Chain_Initialize_empty( &_User_extensions_List );
_Chain_Initialize_empty( &_User_extensions_Switches_list );
if ( initial_extensions ) {
for (i=0 ; i<number_of_extensions ; i++ ) {
extension =
_Workspace_Allocate_or_fatal_error( sizeof(User_extensions_Control) );
_Workspace_Allocate_or_fatal_error(
number_of_extensions * sizeof( User_extensions_Control )
);
extension->Callouts = initial_extensions[i];
_Chain_Append( &_User_extensions_List, &extension->Node );
memset (
extension,
0,
number_of_extensions * sizeof( User_extensions_Control )
);
for ( i = 0 ; i < number_of_extensions ; i++ ) {
_User_extensions_Add_set (extension, &initial_extensions[i]);
extension++;
}
}
}
/*PAGE
*
* _User_extensions_Add_set
*
* DESCRIPTION:
*
* This routine is used to add a user extension set to the active list.
*/
RTEMS_INLINE_ROUTINE void _User_extensions_Add_set (
User_extensions_Control *the_extension,
User_extensions_Table *extension_table
)
{
the_extension->Callouts = *extension_table;
_Chain_Append( &_User_extensions_List, &the_extension->Node );
}
/*PAGE
*
* _User_extensions_Add_API_set
*
* DESCRIPTION:
*
* This routine is used to add an API extension set to the active list.
@@ -79,7 +97,7 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Add_API_set (
User_extensions_Control *the_extension
)
{
_Chain_Prepend( &_User_extensions_List, &the_extension->Node );
_User_extensions_Add_set( the_extension );
}
/*PAGE
@@ -96,6 +114,13 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Remove_set (
)
{
_Chain_Extract( &the_extension->Node );
/*
* If a switch handler is present, remove it.
*/
if ( the_extension->Callouts.thread_switch != NULL )
_Chain_Extract( &the_extension->Switch.Node );
}
/*PAGE
@@ -114,16 +139,15 @@ RTEMS_INLINE_ROUTINE void _User_extensions_Thread_switch (
)
{
Chain_Node *the_node;
User_extensions_Control *the_extension;
User_extensions_Switch_control *the_extension_switch;
for ( the_node = _User_extensions_List.first ;
!_Chain_Is_tail( &_User_extensions_List, the_node ) ;
for ( the_node = _User_extensions_Switches_list.first ;
!_Chain_Is_tail( &_User_extensions_Switches_list, the_node ) ;
the_node = the_node->next ) {
the_extension = (User_extensions_Control *) the_node;
the_extension_switch = (User_extensions_Switch_control *) the_node;
if ( the_extension->Callouts.thread_switch != NULL )
(*the_extension->Callouts.thread_switch)( executing, heir );
(*the_extension_switch->thread_switch)( executing, heir );
}
}