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/**
* @file
*
* @brief POSIX Cleanup Support
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <rtems/sysinit.h>
#include <rtems/score/thread.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/score/userextimpl.h>
void _pthread_cleanup_push(
struct _pthread_cleanup_context *context,
void ( *routine )( void * ),
void *arg
)
{
ISR_Level level;
Thread_Control *executing;
context->_routine = routine;
context->_arg = arg;
/* This value is unused, just provide a deterministic value */
context->_canceltype = -1;
_ISR_Local_disable( level );
executing = _Thread_Executing;
context->_previous = executing->last_cleanup_context;
executing->last_cleanup_context = context;
_ISR_Local_enable( level );
}
void _pthread_cleanup_pop(
struct _pthread_cleanup_context *context,
int execute
)
{
ISR_Level level;
Thread_Control *executing;
if ( execute != 0 ) {
( *context->_routine )( context->_arg );
}
_ISR_Local_disable( level );
executing = _Thread_Executing;
executing->last_cleanup_context = context->_previous;
_ISR_Local_enable( level );
}
static void _POSIX_Cleanup_terminate_extension( Thread_Control *the_thread )
{
struct _pthread_cleanup_context *context;
context = the_thread->last_cleanup_context;
the_thread->last_cleanup_context = NULL;
while ( context != NULL ) {
( *context->_routine )( context->_arg );
context = context->_previous;
}
}
static void _POSIX_Cleanup_restart_extension(
Thread_Control *executing,
Thread_Control *the_thread
)
{
(void) executing;
_POSIX_Cleanup_terminate_extension( the_thread );
}
static User_extensions_Control _POSIX_Cleanup_extensions = {
.Callouts = {
.thread_restart = _POSIX_Cleanup_restart_extension,
.thread_terminate = _POSIX_Cleanup_terminate_extension
}
};
static void _POSIX_Cleanup_initialization( void )
{
_User_extensions_Add_API_set( &_POSIX_Cleanup_extensions );
}
RTEMS_SYSINIT_ITEM(
_POSIX_Cleanup_initialization,
RTEMS_SYSINIT_POSIX_CLEANUP,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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