diff options
Diffstat (limited to 'mysys/my_os2cond.c')
| -rw-r--r-- | mysys/my_os2cond.c | 151 |
1 files changed, 63 insertions, 88 deletions
diff --git a/mysys/my_os2cond.c b/mysys/my_os2cond.c index e23afb89e66..f0cf91404d2 100644 --- a/mysys/my_os2cond.c +++ b/mysys/my_os2cond.c @@ -5,8 +5,8 @@ This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. + License as published by the Free Software Foundation; version 2 + of the License. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -22,7 +22,7 @@ ** The following is a simple implementation of posix conditions *****************************************************************************/ -#undef SAFE_MUTEX /* Avoid safe_mutex redefinitions */ +#undef SAFE_MUTEX /* Avoid safe_mutex redefinitions */ #include "mysys_priv.h" #if defined(THREAD) && defined(OS2) #include <m_string.h> @@ -31,134 +31,109 @@ int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr) { - APIRET rc = 0; - HEV event; - cond->waiting=0; - /* Warp3 FP29 or Warp4 FP4 or better required */ - rc = DosCreateEventSem( NULL, &cond->semaphore, 0x0800, 0); - if (rc) - return ENOMEM; - + cond->waiting= 0; + /* Warp3 FP29 or Warp4 FP4 or better required */ + if (DosCreateEventSem(NULL, &cond->semaphore, 0x0800, 0)) + return ENOMEM; return 0; } int pthread_cond_destroy(pthread_cond_t *cond) { - APIRET rc; - - do { - rc = DosCloseEventSem(cond->semaphore); - if (rc == 301) DosPostEventSem(cond->semaphore); - } while (rc == 301); - if (rc) - return EINVAL; - - return 0; + for (;;) + { + APIRET rc; + if ((rc= DosCloseEventSem(cond->semaphore)) != 301) + return rc ? EINVAL : 0; + DosPostEventSem(cond->semaphore); + } } int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) { - APIRET rc; - int rval; - - rval = 0; - cond->waiting++; - - if (mutex) pthread_mutex_unlock(mutex); - - rc = DosWaitEventSem(cond->semaphore,SEM_INDEFINITE_WAIT); - if (rc != 0) - rval = EINVAL; - - if (mutex) pthread_mutex_lock(mutex); - - cond->waiting--; - - return rval; + int rval= 0; + cond->waiting++; + if (mutex) + pthread_mutex_unlock(mutex); + if (DosWaitEventSem(cond->semaphore, SEM_INDEFINITE_WAIT)) + rval= EINVAL; + if (mutex) + pthread_mutex_lock(mutex); + cond->waiting--; + return rval; } int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, - struct timespec *abstime) + struct timespec *abstime) { struct timeb curtime; int result; long timeout; - APIRET rc; - int rval; - - _ftime(&curtime); - timeout= ((long) (abstime->ts_sec - curtime.time)*1000L + - (long)((abstime->ts_nsec/1000) - curtime.millitm)/1000L); - if (timeout < 0) /* Some safety */ - timeout = 0L; + int rval= 0; - rval = 0; - cond->waiting++; + _ftime(&curtime); + timeout= ((long) (abstime->ts_sec - curtime.time) * 1000L + + (long) ((abstime->ts_nsec / 1000) - curtime.millitm) / 1000L); + if (timeout < 0) /* Some safety */ + timeout= 0L; - if (mutex) pthread_mutex_unlock(mutex); + cond->waiting++; - rc = DosWaitEventSem(cond->semaphore, timeout); - if (rc != 0) - rval = ETIME; + if (mutex) + pthread_mutex_unlock(mutex); + if (DosWaitEventSem(cond->semaphore, timeout) != 0) + rval= ETIMEDOUT; + if (mutex) + pthread_mutex_lock(mutex); - if (mutex) pthread_mutex_lock(mutex); + cond->waiting--; - cond->waiting--; - - return rval; + return rval; } int pthread_cond_signal(pthread_cond_t *cond) { - APIRET rc; - - /* Bring the next thread off the condition queue: */ - rc = DosPostEventSem(cond->semaphore); - return 0; + /* Bring the next thread off the condition queue: */ + DosPostEventSem(cond->semaphore); + return 0; } int pthread_cond_broadcast(pthread_cond_t *cond) { - int i; - APIRET rc; - - /* - * Enter a loop to bring all threads off the - * condition queue: - */ - i = cond->waiting; - while (i--) rc = DosPostEventSem(cond->semaphore); - - return 0 ; + int i; + /* Enter a loop to bring all threads off the condition queue */ + for (i= cond->waiting; i--;) + DosPostEventSem(cond->semaphore); + return 0; } int pthread_attr_init(pthread_attr_t *connect_att) { - connect_att->dwStackSize = 0; - connect_att->dwCreatingFlag = 0; - connect_att->priority = 0; + connect_att->dwStackSize= 0; + connect_att->dwCreatingFlag= 0; + connect_att->priority= 0; return 0; } -int pthread_attr_setstacksize(pthread_attr_t *connect_att,DWORD stack) +int pthread_attr_setstacksize(pthread_attr_t *connect_att, DWORD stack) { - connect_att->dwStackSize=stack; + connect_att->dwStackSize= stack; return 0; } -int pthread_attr_setprio(pthread_attr_t *connect_att,int priority) +int pthread_attr_setprio(pthread_attr_t *connect_att, int priority) { - connect_att->priority=priority; + connect_att->priority= priority; return 0; } int pthread_attr_destroy(pthread_attr_t *connect_att) { - bzero((gptr) connect_att,sizeof(*connect_att)); + bzero((gptr) connect_att, sizeof(*connect_att)); return 0; } @@ -166,22 +141,22 @@ int pthread_attr_destroy(pthread_attr_t *connect_att) ** Fix localtime_r() to be a bit safer ****************************************************************************/ -struct tm *localtime_r(const time_t *timep,struct tm *tmp) +struct tm *localtime_r(const time_t *timep, struct tm *tmp) { - if (*timep == (time_t) -1) /* This will crash win32 */ + if (*timep == (time_t) - 1) /* This will crash win32 */ { - bzero(tmp,sizeof(*tmp)); + bzero(tmp, sizeof(*tmp)); } else { - struct tm *res=localtime(timep); - if (!res) /* Wrong date */ + struct tm *res= localtime(timep); + if (!res) /* Wrong date */ { - bzero(tmp,sizeof(*tmp)); /* Keep things safe */ + bzero(tmp, sizeof(*tmp)); /* Keep things safe */ return 0; } *tmp= *res; } return tmp; } -#endif /* __WIN__ */ +#endif /* __WIN__ */ |