/* * pthreads wrapper functions. */#include	"unp.h"#include	"unpthread.h"voidPthread_create(pthread_t *tid, const pthread_attr_t *attr,			   void * (*func)(void *), void *arg){	int		n;	if ( (n = pthread_create(tid, attr, func, arg)) == 0)		return;	errno = n;	err_sys("pthread_create error");}voidPthread_join(pthread_t tid, void **status){	int		n;	if ( (n = pthread_join(tid, status)) == 0)		return;	errno = n;	err_sys("pthread_join error");}voidPthread_detach(pthread_t tid){	int		n;	if ( (n = pthread_detach(tid)) == 0)		return;	errno = n;	err_sys("pthread_detach error");}voidPthread_kill(pthread_t tid, int signo){	int		n;	if ( (n = pthread_kill(tid, signo)) == 0)		return;	errno = n;	err_sys("pthread_kill error");}voidPthread_mutexattr_init(pthread_mutexattr_t *attr){	int		n;	if ( (n = pthread_mutexattr_init(attr)) == 0)		return;	errno = n;	err_sys("pthread_mutexattr_init error");}#ifdef	_POSIX_THREAD_PROCESS_SHAREDvoidPthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int flag){	int		n;	if ( (n = pthread_mutexattr_setpshared(attr, flag)) == 0)		return;	errno = n;	err_sys("pthread_mutexattr_setpshared error");}#endifvoidPthread_mutex_init(pthread_mutex_t *mptr, pthread_mutexattr_t *attr){	int		n;	if ( (n = pthread_mutex_init(mptr, attr)) == 0)		return;	errno = n;	err_sys("pthread_mutex_init error");}/* include Pthread_mutex_lock */voidPthread_mutex_lock(pthread_mutex_t *mptr){	int		n;	if ( (n = pthread_mutex_lock(mptr)) == 0)		return;	errno = n;	err_sys("pthread_mutex_lock error");}/* end Pthread_mutex_lock */voidPthread_mutex_unlock(pthread_mutex_t *mptr){	int		n;	if ( (n = pthread_mutex_unlock(mptr)) == 0)		return;	errno = n;	err_sys("pthread_mutex_unlock error");}voidPthread_cond_broadcast(pthread_cond_t *cptr){	int		n;	if ( (n = pthread_cond_broadcast(cptr)) == 0)		return;	errno = n;	err_sys("pthread_cond_broadcast error");}voidPthread_cond_signal(pthread_cond_t *cptr){	int		n;	if ( (n = pthread_cond_signal(cptr)) == 0)		return;	errno = n;	err_sys("pthread_cond_signal error");}voidPthread_cond_wait(pthread_cond_t *cptr, pthread_mutex_t *mptr){	int		n;	if ( (n = pthread_cond_wait(cptr, mptr)) == 0)		return;	errno = n;	err_sys("pthread_cond_wait error");}voidPthread_cond_timedwait(pthread_cond_t *cptr, pthread_mutex_t *mptr,					   const struct timespec *tsptr){	int		n;	if ( (n = pthread_cond_timedwait(cptr, mptr, tsptr)) == 0)		return;	errno = n;	err_sys("pthread_cond_timedwait error");}voidPthread_once(pthread_once_t *ptr, void (*func)(void)){	int		n;	if ( (n = pthread_once(ptr, func)) == 0)		return;	errno = n;	err_sys("pthread_once error");}voidPthread_key_create(pthread_key_t *key, void (*func)(void *)){	int		n;	if ( (n = pthread_key_create(key, func)) == 0)		return;	errno = n;	err_sys("pthread_key_create error");}voidPthread_setspecific(pthread_key_t key, const void *value){	int		n;	if ( (n = pthread_setspecific(key, value)) == 0)		return;	errno = n;	err_sys("pthread_setspecific error");}