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/**
* @file
*
* @brief Initialize a Core Mutex
* @ingroup ScoreMutex
*/
/*
* COPYRIGHT (c) 1989-1999.
* 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/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/coremuteximpl.h>
#include <rtems/score/thread.h>
Status_Control _CORE_mutex_Initialize(
CORE_mutex_Control *the_mutex,
Thread_Control *executing,
const CORE_mutex_Attributes *the_mutex_attributes,
bool initially_locked
)
{
/* Add this to the RTEMS environment later ?????????
rtems_assert( initial_lock == CORE_MUTEX_LOCKED ||
initial_lock == CORE_MUTEX_UNLOCKED );
*/
the_mutex->Attributes = *the_mutex_attributes;
if ( initially_locked ) {
the_mutex->nest_count = 1;
the_mutex->holder = executing;
executing->resource_count++;
} else {
the_mutex->nest_count = 0;
the_mutex->holder = NULL;
}
_Thread_queue_Initialize( &the_mutex->Wait_queue );
return STATUS_SUCCESSFUL;
}
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