corerwlockimpl.h File Reference

This header file provides interfaces of the Read-Write Lock which are only used by the implementation. More...

#include <rtems/score/percpu.h>
#include <rtems/score/status.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadqimpl.h>
#include <rtems/score/watchdog.h>

Go to the source code of this file.

Data Structures
struct	CORE_RWLock_Control

Macros
#define	CORE_RWLOCK_TQ_OPERATIONS   &_Thread_queue_Operations_FIFO
#define	CORE_RWLOCK_THREAD_WAITING_FOR_READ   0
#define	CORE_RWLOCK_THREAD_WAITING_FOR_WRITE   1

Enumerations
enum	CORE_RWLock_States { CORE_RWLOCK_UNLOCKED , CORE_RWLOCK_LOCKED_FOR_READING , CORE_RWLOCK_LOCKED_FOR_WRITING }

Functions
void	_CORE_RWLock_Initialize (CORE_RWLock_Control *the_rwlock)
	Initializes a RWlock.
Status_Control	_CORE_RWLock_Seize_for_reading (CORE_RWLock_Control *the_rwlock, bool wait, Thread_queue_Context *queue_context)
	Obtains RWLock for reading.
Status_Control	_CORE_RWLock_Seize_for_writing (CORE_RWLock_Control *the_rwlock, bool wait, Thread_queue_Context *queue_context)
	Obtains RWLock for writing.
Status_Control	_CORE_RWLock_Surrender (CORE_RWLock_Control *the_rwlock)
	Releases the RWLock.

Detailed Description

This header file provides interfaces of the Read-Write Lock which are only used by the implementation.