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/**
* @file
*
* @brief Executes a thread's cancellation handlers
* @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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <rtems/score/thread.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/posix/cancel.h>
#include <rtems/posix/threadsup.h>
#ifndef HAVE_STRUCT__PTHREAD_CLEANUP_CONTEXT
#include <rtems/score/chainimpl.h>
#include <rtems/score/isr.h>
#include <rtems/score/wkspace.h>
#include <rtems/posix/pthreadimpl.h>
void _POSIX_Threads_cancel_run(
Thread_Control *the_thread
)
{
POSIX_Cancel_Handler_control *handler;
Chain_Control *handler_stack;
POSIX_API_Control *thread_support;
ISR_Level level;
thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
handler_stack = &thread_support->Cancellation_Handlers;
thread_support->cancelability_state = PTHREAD_CANCEL_DISABLE;
while ( !_Chain_Is_empty( handler_stack ) ) {
_ISR_Disable( level );
handler = (POSIX_Cancel_Handler_control *)
_Chain_Tail( handler_stack )->previous;
_Chain_Extract_unprotected( &handler->Node );
_ISR_Enable( level );
(*handler->routine)( handler->arg );
_Workspace_Free( handler );
}
}
#else /* HAVE_STRUCT__PTHREAD_CLEANUP_CONTEXT */
void _POSIX_Threads_cancel_run(
Thread_Control *the_thread
)
{
struct _pthread_cleanup_context *context;
POSIX_API_Control *thread_support;
_Thread_Disable_dispatch();
thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
thread_support->cancelability_state = PTHREAD_CANCEL_DISABLE;
context = thread_support->last_cleanup_context;
thread_support->last_cleanup_context = NULL;
_Thread_Enable_dispatch();
while ( context != NULL ) {
( *context->_routine )( context->_arg );
context = context->_previous;
}
}
#endif /* HAVE_STRUCT__PTHREAD_CLEANUP_CONTEXT */
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