/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup POSIXAPI
*
* @brief POSIX Cleanup Support
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef 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
);