| _semaphore.h (164182) | _semaphore.h (201546) |
|---|---|
| 1/*- 2 * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/sys/_semaphore.h 151445 2005-10-18 11:46:24Z stefanf $ | 26 * $FreeBSD: head/sys/sys/_semaphore.h 201546 2010-01-05 02:37:59Z davidxu $ |
| 27 */ 28#ifndef __SEMAPHORE_H_ 29#define __SEMAPHORE_H_ 30 31typedef intptr_t semid_t; 32struct timespec; 33 | 27 */ 28#ifndef __SEMAPHORE_H_ 29#define __SEMAPHORE_H_ 30 31typedef intptr_t semid_t; 32struct timespec; 33 |
| 34#define SEM_VALUE_MAX __INT_MAX 35 |
|
| 34#ifndef _KERNEL 35 | 36#ifndef _KERNEL 37 |
| 36#include <sys/cdefs.h> 37 38/* 39 * Semaphore definitions. 40 */ 41struct sem { 42#define SEM_MAGIC ((u_int32_t) 0x09fa4012) 43 u_int32_t magic; 44 pthread_mutex_t lock; 45 pthread_cond_t gtzero; 46 u_int32_t count; 47 u_int32_t nwaiters; 48#define SEM_USER (NULL) 49 semid_t semid; /* semaphore id if kernel (shared) semaphore */ 50 int syssem; /* 1 if kernel (shared) semaphore */ 51 LIST_ENTRY(sem) entry; 52 struct sem **backpointer; 53}; 54 | |
| 55__BEGIN_DECLS 56 57int ksem_close(semid_t id); 58int ksem_post(semid_t id); 59int ksem_wait(semid_t id); 60int ksem_trywait(semid_t id); 61int ksem_timedwait(semid_t id, const struct timespec *abstime); 62int ksem_init(semid_t *idp, unsigned int value); 63int ksem_open(semid_t *idp, const char *name, int oflag, mode_t mode, 64 unsigned int value); 65int ksem_unlink(const char *name); 66int ksem_getvalue(semid_t id, int *val); 67int ksem_destroy(semid_t id); 68 69__END_DECLS 70 71#endif /* !_KERNEL */ 72 73#endif /* __SEMAPHORE_H_ */ | 38__BEGIN_DECLS 39 40int ksem_close(semid_t id); 41int ksem_post(semid_t id); 42int ksem_wait(semid_t id); 43int ksem_trywait(semid_t id); 44int ksem_timedwait(semid_t id, const struct timespec *abstime); 45int ksem_init(semid_t *idp, unsigned int value); 46int ksem_open(semid_t *idp, const char *name, int oflag, mode_t mode, 47 unsigned int value); 48int ksem_unlink(const char *name); 49int ksem_getvalue(semid_t id, int *val); 50int ksem_destroy(semid_t id); 51 52__END_DECLS 53 54#endif /* !_KERNEL */ 55 56#endif /* __SEMAPHORE_H_ */ |