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/**
* @file
*
* @brief Convert POSIX Mutex ID to local object pointer
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2007.
* 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 <rtems/posix/muteximpl.h>
static bool _POSIX_Mutex_Check_id_and_auto_init(
pthread_mutex_t *mutex,
Objects_Locations *location
)
{
if ( mutex == NULL ) {
*location = OBJECTS_ERROR;
return false;
}
if ( *mutex == PTHREAD_MUTEX_INITIALIZER ) {
int eno;
eno = pthread_mutex_init( mutex, NULL );
if ( eno != 0 ) {
*location = OBJECTS_ERROR;
return false;
}
}
return true;
}
POSIX_Mutex_Control *_POSIX_Mutex_Get (
pthread_mutex_t *mutex,
Objects_Locations *location
)
{
if ( !_POSIX_Mutex_Check_id_and_auto_init( mutex, location ) ) {
return NULL;
}
return (POSIX_Mutex_Control *)
_Objects_Get( &_POSIX_Mutex_Information, (Objects_Id) *mutex, location );
}
POSIX_Mutex_Control *_POSIX_Mutex_Get_interrupt_disable (
pthread_mutex_t *mutex,
Objects_Locations *location,
ISR_Level *level
)
{
if ( !_POSIX_Mutex_Check_id_and_auto_init( mutex, location ) ) {
return NULL;
}
return (POSIX_Mutex_Control *) _Objects_Get_isr_disable(
&_POSIX_Mutex_Information,
(Objects_Id) *mutex,
location,
level
);
}
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