RTEMS: cpukit/include/rtems/posix/rwlockimpl.h Source File

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rwlockimpl.h
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1
10/*
11 * COPYRIGHT (c) 1989-2011.
12 * On-Line Applications Research Corporation (OAR).
13 *
14 * The license and distribution terms for this file may be
15 * found in the file LICENSE in this distribution or at
16 * http://www.rtems.org/license/LICENSE.
17 */
18
19#ifndef _RTEMS_POSIX_RWLOCKIMPL_H
20#define _RTEMS_POSIX_RWLOCKIMPL_H
21
22#include <rtems/score/corerwlockimpl.h>
23
24#include <errno.h>
25#include <pthread.h>
26
27#ifdef __cplusplus
28extern "C" {
29#endif
30
31#define POSIX_RWLOCK_MAGIC 0x9621dabdUL
32
33 typedef struct {
34 unsigned long flags;
35 CORE_RWLock_Control RWLock;
36} POSIX_RWLock_Control;
37
38 RTEMS_INLINE_ROUTINE POSIX_RWLock_Control *_POSIX_RWLock_Get(
39 pthread_rwlock_t *rwlock
40)
41{
42 return (POSIX_RWLock_Control *) rwlock;
43}
44
45bool _POSIX_RWLock_Auto_initialization( POSIX_RWLock_Control *the_rwlock );
46
47#define POSIX_RWLOCK_VALIDATE_OBJECT( rw ) \
48 do { \
49 if ( ( rw ) == NULL ) { \
50 return EINVAL; \
51 } \
52 if ( ( (uintptr_t) ( rw ) ^ POSIX_RWLOCK_MAGIC ) != ( rw )->flags ) { \
53 if ( !_POSIX_RWLock_Auto_initialization( rw ) ) { \
54 return EINVAL; \
55 } \
56 } \
57 } while ( 0 )
58
59#ifdef __cplusplus
60}
61#endif
62
63#endif
64/* end of include file */
corerwlockimpl.h
Inlined Routines Associated with the SuperCore RWLock.
RTEMS_INLINE_ROUTINE
#define RTEMS_INLINE_ROUTINE
Definition: basedefs.h:66
pthread.h
POSIX Threads Private Support.
CORE_RWLock_Control
Definition: corerwlockimpl.h:76
POSIX_RWLock_Control
Definition: rwlockimpl.h:33