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openntpd-openbsd
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Move the thread-related .h files to /usr/src/include/, since the 

implementation is now spread between libc and librthread.  No changes
to the content
ok mpi@
OPENBSD_6_3
guenther 6 years ago
parent
863fd0a08e
commit
3986062c3f
5 changed files with 528 additions and 13 deletions
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  1. +23
    -13
      src/include/Makefile
  2. +315
    -0
      src/include/pthread.h
  3. +53
    -0
      src/include/pthread_np.h
  4. +75
    -0
      src/include/sched.h
  5. +62
    -0
      src/include/semaphore.h

+ 23
- 13
src/include/Makefile View File

@ -1,4 +1,4 @@
# $OpenBSD: Makefile,v 1.220 2017/10/06 19:58:37 naddy Exp $
# $OpenBSD: Makefile,v 1.221 2017/10/15 23:40:33 guenther Exp $
# $NetBSD: Makefile,v 1.59 1996/05/15 21:36:43 jtc Exp $
# @(#)Makefile 5.45.1.1 (Berkeley) 5/6/91
@ -9,17 +9,27 @@
.include <bsd.own.mk>
FILES= a.out.h ar.h asr.h assert.h bitstring.h blf.h bsd_auth.h \
complex.h cpio.h ctype.h curses.h db.h dirent.h disktab.h \
dlfcn.h elf_abi.h err.h errno.h fenv.h float.h fnmatch.h fstab.h fts.h \
ftw.h getopt.h glob.h grp.h icdb.h ieeefp.h ifaddrs.h inttypes.h \
iso646.h kvm.h langinfo.h libgen.h limits.h link.h link_elf.h \
locale.h login_cap.h math.h md5.h memory.h ndbm.h netdb.h netgroup.h \
nlist.h nl_types.h paths.h poll.h pwd.h ranlib.h readpassphrase.h \
regex.h resolv.h rmd160.h search.h setjmp.h sha1.h sha2.h signal.h \
siphash.h sndio.h spawn.h stdbool.h stddef.h stdio.h stdlib.h \
string.h strings.h sysexits.h tar.h tgmath.h tib.h time.h \
ttyent.h unistd.h utime.h utmp.h uuid.h vis.h wchar.h wctype.h
FILES= a.out.h ar.h asr.h assert.h \
bitstring.h blf.h bsd_auth.h \
complex.h cpio.h ctype.h curses.h \
db.h dirent.h disktab.h dlfcn.h \
elf_abi.h err.h errno.h \
fenv.h float.h fnmatch.h fstab.h fts.h ftw.h \
getopt.h glob.h grp.h \
icdb.h ieeefp.h ifaddrs.h inttypes.h iso646.h \
kvm.h \
langinfo.h libgen.h limits.h link.h link_elf.h locale.h login_cap.h \
math.h md5.h memory.h \
ndbm.h netdb.h netgroup.h nlist.h nl_types.h \
paths.h poll.h pthread.h pthread_np.h pwd.h \
ranlib.h readpassphrase.h regex.h resolv.h rmd160.h \
sched.h search.h setjmp.h semaphore.h sha1.h sha2.h \
signal.h siphash.h sndio.h spawn.h stdbool.h stddef.h \
stdio.h stdlib.h string.h strings.h sysexits.h \
tar.h tgmath.h tib.h time.h ttyent.h \
unistd.h utime.h utmp.h uuid.h \
vis.h \
wchar.h wctype.h
MFILES= frame.h
LFILES= endian.h fcntl.h syslog.h termios.h stdarg.h stdint.h varargs.h
@ -36,7 +46,7 @@ RDIRS= ../lib/libcurses ../lib/libedit \
../lib/libevent ../lib/libexpat ../lib/libform \
../lib/libfuse ../lib/libkeynote ../lib/libmenu \
../lib/libossaudio ../lib/libpanel ../lib/libpcap \
../lib/libradius ../lib/librthread \
../lib/libradius \
../lib/libskey ../lib/libssl ../lib/libtls \
../lib/libusbhid ../lib/libutil ../lib/libz \
../usr.bin/lex ../gnu/lib/libreadline \


+ 315
- 0
src/include/pthread.h View File

@ -0,0 +1,315 @@
/* $OpenBSD: pthread.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
/*
* Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
* Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano.
* 4. The name of Chris Provenzano may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: pthread.h,v 1.13 1999/07/31 08:36:07 rse Exp $
*/
#ifndef _PTHREAD_H_
#define _PTHREAD_H_
/*
* Header files.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <limits.h>
#include <sched.h>
/*
* Run-time invariant values:
*/
#define PTHREAD_DESTRUCTOR_ITERATIONS 4
#define PTHREAD_KEYS_MAX 256
#define PTHREAD_STACK_MIN 2048
#define PTHREAD_THREADS_MAX ULONG_MAX
/*
* Flags for threads and thread attributes.
*/
#define PTHREAD_DETACHED 0x1
#define PTHREAD_SCOPE_SYSTEM 0x2
#define PTHREAD_INHERIT_SCHED 0x4
#define PTHREAD_NOFLOAT 0x8
#define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED
#define PTHREAD_CREATE_JOINABLE 0
#define PTHREAD_SCOPE_PROCESS 0
#define PTHREAD_EXPLICIT_SCHED 0
/*
* Flags for read/write lock attributes
*/
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_PROCESS_SHARED 1
/*
* Flags for cancelling threads
*/
#define PTHREAD_CANCEL_ENABLE 0
#define PTHREAD_CANCEL_DISABLE 1
#define PTHREAD_CANCEL_DEFERRED 0
#define PTHREAD_CANCEL_ASYNCHRONOUS 2
#define PTHREAD_CANCELED ((void *) 1)
/*
* Barrier flags
*/
#define PTHREAD_BARRIER_SERIAL_THREAD -1
/*
* Forward structure definitions.
*
* These are mostly opaque to the user.
*/
struct pthread;
struct pthread_attr;
struct pthread_cond;
struct pthread_cond_attr;
struct pthread_mutex;
struct pthread_mutex_attr;
struct pthread_once;
struct pthread_rwlock;
struct pthread_rwlockattr;
/*
* Primitive system data type definitions required by P1003.1c.
*
* Note that P1003.1c specifies that there are no defined comparison
* or assignment operators for the types pthread_attr_t, pthread_cond_t,
* pthread_condattr_t, pthread_mutex_t, pthread_mutexattr_t.
*/
typedef struct pthread *pthread_t;
typedef struct pthread_attr *pthread_attr_t;
typedef volatile struct pthread_mutex *pthread_mutex_t;
typedef struct pthread_mutex_attr *pthread_mutexattr_t;
typedef struct pthread_cond *pthread_cond_t;
typedef struct pthread_cond_attr *pthread_condattr_t;
typedef int pthread_key_t;
typedef struct pthread_once pthread_once_t;
typedef struct pthread_rwlock *pthread_rwlock_t;
typedef struct pthread_rwlockattr *pthread_rwlockattr_t;
typedef struct pthread_barrier *pthread_barrier_t;
typedef struct pthread_barrierattr *pthread_barrierattr_t;
typedef struct pthread_spinlock *pthread_spinlock_t;
/*
* Additional type definitions:
*
* Note that P1003.1c reserves the prefixes pthread_ and PTHREAD_ for
* use in header symbols.
*/
typedef void *pthread_addr_t;
typedef void *(*pthread_startroutine_t)(void *);
/*
* Once definitions.
*/
struct pthread_once {
int state;
pthread_mutex_t mutex;
};
/*
* Flags for once initialization.
*/
#define PTHREAD_NEEDS_INIT 0
#define PTHREAD_DONE_INIT 1
/*
* Static once initialization values.
*/
#define PTHREAD_ONCE_INIT { PTHREAD_NEEDS_INIT, PTHREAD_MUTEX_INITIALIZER }
/*
* Static initialization values.
*/
#define PTHREAD_MUTEX_INITIALIZER NULL
#define PTHREAD_COND_INITIALIZER NULL
#define PTHREAD_RWLOCK_INITIALIZER NULL
#define PTHREAD_PRIO_NONE 0
#define PTHREAD_PRIO_INHERIT 1
#define PTHREAD_PRIO_PROTECT 2
/*
* Mutex types.
*/
enum pthread_mutextype {
PTHREAD_MUTEX_ERRORCHECK = 1, /* Error checking mutex */
PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */
PTHREAD_MUTEX_NORMAL = 3, /* No error checking */
PTHREAD_MUTEX_STRICT_NP = 4, /* Strict error checking */
PTHREAD_MUTEX_TYPE_MAX
};
#define PTHREAD_MUTEX_ERRORCHECK PTHREAD_MUTEX_ERRORCHECK
#define PTHREAD_MUTEX_RECURSIVE PTHREAD_MUTEX_RECURSIVE
#define PTHREAD_MUTEX_NORMAL PTHREAD_MUTEX_NORMAL
#define PTHREAD_MUTEX_STRICT_NP PTHREAD_MUTEX_STRICT_NP
#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_STRICT_NP
/*
* Thread function prototype definitions:
*/
__BEGIN_DECLS
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
int pthread_attr_destroy(pthread_attr_t *);
int pthread_attr_getstack(const pthread_attr_t *,
void **, size_t *);
int pthread_attr_getstacksize(const pthread_attr_t *, size_t *);
int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
int pthread_attr_getguardsize(const pthread_attr_t *, size_t *);
int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
int pthread_attr_init(pthread_attr_t *);
int pthread_attr_setstacksize(pthread_attr_t *, size_t);
int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
int pthread_attr_setstackaddr(pthread_attr_t *, void *);
int pthread_attr_setguardsize(pthread_attr_t *, size_t);
int pthread_attr_setdetachstate(pthread_attr_t *, int);
void pthread_cleanup_pop(int);
void pthread_cleanup_push(void (*) (void *), void *routine_arg);
int pthread_condattr_destroy(pthread_condattr_t *);
int pthread_condattr_init(pthread_condattr_t *);
int pthread_cond_broadcast(pthread_cond_t *);
int pthread_cond_destroy(pthread_cond_t *);
int pthread_cond_init(pthread_cond_t *,
const pthread_condattr_t *);
int pthread_cond_signal(pthread_cond_t *);
int pthread_cond_timedwait(pthread_cond_t *,
pthread_mutex_t *, const struct timespec *);
int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
int pthread_create(pthread_t *, const pthread_attr_t *,
void *(*) (void *), void *);
int pthread_detach(pthread_t);
int pthread_equal(pthread_t, pthread_t);
__dead void pthread_exit(void *);
void *pthread_getspecific(pthread_key_t);
int pthread_join(pthread_t, void **);
int pthread_key_create(pthread_key_t *,
void (*) (void *));
int pthread_key_delete(pthread_key_t);
int pthread_kill(pthread_t, int);
int pthread_mutexattr_init(pthread_mutexattr_t *);
int pthread_mutexattr_destroy(pthread_mutexattr_t *);
int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *);
int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
int pthread_mutex_destroy(pthread_mutex_t *);
int pthread_mutex_init(pthread_mutex_t *,
const pthread_mutexattr_t *);
int pthread_mutex_lock(pthread_mutex_t *);
int pthread_mutex_timedlock(pthread_mutex_t *,
const struct timespec *);
int pthread_mutex_trylock(pthread_mutex_t *);
int pthread_mutex_unlock(pthread_mutex_t *);
int pthread_once(pthread_once_t *, void (*) (void));
int pthread_rwlock_destroy(pthread_rwlock_t *);
int pthread_rwlock_init(pthread_rwlock_t *,
const pthread_rwlockattr_t *);
int pthread_rwlock_rdlock(pthread_rwlock_t *);
int pthread_rwlock_timedrdlock(pthread_rwlock_t *,
const struct timespec *);
int pthread_rwlock_timedwrlock(pthread_rwlock_t *,
const struct timespec *);
int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
int pthread_rwlock_trywrlock(pthread_rwlock_t *);
int pthread_rwlock_unlock(pthread_rwlock_t *);
int pthread_rwlock_wrlock(pthread_rwlock_t *);
int pthread_rwlockattr_init(pthread_rwlockattr_t *);
int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *,
int *);
int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
pthread_t pthread_self(void);
int pthread_setspecific(pthread_key_t, const void *);
int pthread_cancel(pthread_t);
int pthread_setcancelstate(int, int *);
int pthread_setcanceltype(int, int *);
void pthread_testcancel(void);
int pthread_getprio(pthread_t);
int pthread_setprio(pthread_t, int);
void pthread_yield(void);
int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *,
int *);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *,
int);
int pthread_mutex_getprioceiling(pthread_mutex_t *, int *);
int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *);
int pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *);
int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
int pthread_condattr_getclock(const pthread_condattr_t *,
clockid_t *);
int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
int pthread_attr_getinheritsched(const pthread_attr_t *, int *);
int pthread_attr_getschedparam(const pthread_attr_t *,
struct sched_param *);
int pthread_attr_getschedpolicy(const pthread_attr_t *, int *);
int pthread_attr_getscope(const pthread_attr_t *, int *);
int pthread_attr_setinheritsched(pthread_attr_t *, int);
int pthread_attr_setschedparam(pthread_attr_t *,
const struct sched_param *);
int pthread_attr_setschedpolicy(pthread_attr_t *, int);
int pthread_attr_setscope(pthread_attr_t *, int);
int pthread_getschedparam(pthread_t pthread, int *,
struct sched_param *);
int pthread_setschedparam(pthread_t, int,
const struct sched_param *);
int pthread_getconcurrency(void);
int pthread_setconcurrency(int);
int pthread_barrier_init(pthread_barrier_t *,
pthread_barrierattr_t *, unsigned int);
int pthread_barrier_destroy(pthread_barrier_t *);
int pthread_barrier_wait(pthread_barrier_t *);
int pthread_barrierattr_init(pthread_barrierattr_t *);
int pthread_barrierattr_destroy(pthread_barrierattr_t *);
int pthread_barrierattr_getpshared(pthread_barrierattr_t *, int *);
int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
int pthread_spin_init(pthread_spinlock_t *, int);
int pthread_spin_destroy(pthread_spinlock_t *);
int pthread_spin_trylock(pthread_spinlock_t *);
int pthread_spin_lock(pthread_spinlock_t *);
int pthread_spin_unlock(pthread_spinlock_t *);
#if __POSIX_VISIBLE >= 200112
int pthread_getcpuclockid(pthread_t, clockid_t *);
#endif
__END_DECLS
#endif /* _PTHREAD_H_ */

+ 53
- 0
src/include/pthread_np.h View File

@ -0,0 +1,53 @@
/* $OpenBSD: pthread_np.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
/*
* Copyright (c) 1996-98 John Birrell <jb@cimlogic.com.au>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by John Birrell.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _PTHREAD_NP_H_
#define _PTHREAD_NP_H_
/*
* Non-POSIX type definitions:
*/
typedef void (*pthread_switch_routine_t)(pthread_t, pthread_t);
/*
* Non-POSIX thread function prototype definitions:
*/
__BEGIN_DECLS
int pthread_mutexattr_getkind_np(pthread_mutexattr_t);
int pthread_mutexattr_setkind_np(pthread_mutexattr_t *, int);
void pthread_set_name_np(pthread_t, const char *);
int pthread_stackseg_np(pthread_t, stack_t *);
int pthread_main_np(void);
__END_DECLS
#endif

+ 75
- 0
src/include/sched.h View File

@ -0,0 +1,75 @@
/* $OpenBSD: sched.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
/* sched.h: POSIX 1003.1b Process Scheduling header */
/*-
* Copyright (c) 1996, 1997
* HD Associates, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by HD Associates, Inc
* and Jukka Antero Ukkonen.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _SCHED_H_
#define _SCHED_H_
#include <sys/types.h> /* For pid_t */
#include <time.h> /* Per P1003.4 */
/* Scheduling policies
*/
#define SCHED_FIFO 1
#define SCHED_OTHER 2
#define SCHED_RR 3
struct sched_param
{
int sched_priority;
};
__BEGIN_DECLS
#if 0 /* not yet */
int sched_setparam(pid_t, const struct sched_param *);
int sched_getparam(pid_t, struct sched_param *);
int sched_setscheduler(pid_t, int, const struct sched_param *);
int sched_getscheduler(pid_t);
#endif
int sched_yield(void);
int sched_get_priority_max(int);
int sched_get_priority_min(int);
#if 0 /* not yet */
struct timespec;
int sched_rr_get_interval(pid_t, struct timespec *);
#endif
__END_DECLS
#endif /* _SCHED_H_ */

+ 62
- 0
src/include/semaphore.h View File

@ -0,0 +1,62 @@
/* $OpenBSD: semaphore.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
/* semaphore.h: POSIX 1003.1b semaphores */
/*-
* Copyright (c) 1996, 1997
* HD Associates, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by HD Associates, Inc
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SEMAPHORE_H_
#define _SEMAPHORE_H_
#include <sys/cdefs.h>
/* Opaque type definition. */
struct __sem;
typedef struct __sem *sem_t;
struct timespec;
#define SEM_FAILED ((sem_t *)0)
__BEGIN_DECLS
int sem_init(sem_t *, int, unsigned int);
int sem_destroy(sem_t *);
sem_t *sem_open(const char *, int, ...);
int sem_close(sem_t *);
int sem_unlink(const char *);
int sem_wait(sem_t *);
int sem_timedwait(sem_t * __restrict, const struct timespec * __restrict);
int sem_trywait(sem_t *);
int sem_post(sem_t *);
int sem_getvalue(sem_t * __restrict, int * __restrict);
__END_DECLS
#endif /* _SEMAPHORE_H_ */

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