forked from Imagelibrary/rtems
97312fcc6d
This field was only by the monitor in non-multiprocessing configurations. Add new field Thread_Wait_information::remote_id in multiprocessing configurations and use it for the remote procedure call thread queue. Add _Thread_Wait_get_id() to obtain the object identifier for debug and system information tools. Ensure the object layout via static asserts. Add test cases to sptests/spthreadq01.
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/**
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* @file
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*
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* @brief Support Call to function Enables Locking of Mutex Object
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* @ingroup POSIXAPI
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*/
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/*
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* COPYRIGHT (c) 1989-2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#include <pthread.h>
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#include <rtems/system.h>
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#include <rtems/score/coremuteximpl.h>
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#include <rtems/score/watchdog.h>
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#include <rtems/score/threadimpl.h>
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#include <rtems/posix/muteximpl.h>
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#include <rtems/posix/priorityimpl.h>
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THREAD_WAIT_QUEUE_OBJECT_ASSERT( POSIX_Mutex_Control, Mutex.Wait_queue );
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/*
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* _POSIX_Mutex_Lock_support
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*
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* A support routine which implements guts of the blocking, non-blocking, and
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* timed wait version of mutex lock.
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*/
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int _POSIX_Mutex_Lock_support(
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pthread_mutex_t *mutex,
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bool blocking,
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Watchdog_Interval timeout
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)
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{
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POSIX_Mutex_Control *the_mutex;
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Objects_Locations location;
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ISR_lock_Context lock_context;
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Thread_Control *executing;
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the_mutex = _POSIX_Mutex_Get_interrupt_disable(
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mutex,
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&location,
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&lock_context
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);
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switch ( location ) {
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case OBJECTS_LOCAL:
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executing = _Thread_Executing;
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_CORE_mutex_Seize(
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&the_mutex->Mutex,
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executing,
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the_mutex->Object.id,
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blocking,
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timeout,
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&lock_context
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);
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return _POSIX_Mutex_Translate_core_mutex_return_code(
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(CORE_mutex_Status) executing->Wait.return_code
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);
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#if defined(RTEMS_MULTIPROCESSING)
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case OBJECTS_REMOTE:
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#endif
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case OBJECTS_ERROR:
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break;
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}
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return EINVAL;
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}
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