diff options
author | rpj <rpj> | 2002-02-18 03:16:52 +0000 |
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committer | rpj <rpj> | 2002-02-18 03:16:52 +0000 |
commit | a416ab17ecf9f2cb0f1e3f7bd645a8d1ce690ca2 (patch) | |
tree | 72f776cd64e48824a5578ff7a523bc69097143b4 /condvar_init.c | |
parent | e6f1797e9e9925ae7f9dda54806ef8f52ae3ed07 (diff) |
Major reorganisation of source code; new routine and tests added.
Diffstat (limited to 'condvar_init.c')
-rw-r--r-- | condvar_init.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/condvar_init.c b/condvar_init.c deleted file mode 100644 index ecd4297..0000000 --- a/condvar_init.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * condvar_init.c - * - * Description: - * This translation unit implements condition variables and their primitives. - * - * - * -------------------------------------------------------------------------- - * - * Pthreads-win32 - POSIX Threads Library for Win32 - * Copyright(C) 1998 John E. Bossom - * Copyright(C) 1999,2002 Pthreads-win32 contributors - * - * Contact Email: rpj@ise.canberra.edu.au - * - * The current list of contributors is contained - * in the file CONTRIBUTORS included with the source - * code distribution. The list can also be seen at the - * following World Wide Web location: - * http://sources.redhat.com/pthreads-win32/contributors.html - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library in the file COPYING.LIB; - * if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - */ - -#include "pthread.h" -#include "implement.h" - - -int -pthread_cond_init (pthread_cond_t * cond, const pthread_condattr_t * attr) - /* - * ------------------------------------------------------ - * DOCPUBLIC - * This function initializes a condition variable. - * - * PARAMETERS - * cond - * pointer to an instance of pthread_cond_t - * - * attr - * specifies optional creation attributes. - * - * - * DESCRIPTION - * This function initializes a condition variable. - * - * RESULTS - * 0 successfully created condition variable, - * EINVAL 'attr' is invalid, - * EAGAIN insufficient resources (other than - * memory, - * ENOMEM insufficient memory, - * EBUSY 'cond' is already initialized, - * - * ------------------------------------------------------ - */ -{ - int result; - pthread_cond_t cv = NULL; - - if (cond == NULL) - { - return EINVAL; - } - - if ((attr != NULL && *attr != NULL) && - ((*attr)->pshared == PTHREAD_PROCESS_SHARED)) - { - /* - * Creating condition variable that can be shared between - * processes. - */ - result = ENOSYS; - goto DONE; - } - - cv = (pthread_cond_t) calloc(1, sizeof (*cv)); - - if (cv == NULL) - { - result = ENOMEM; - goto DONE; - } - - cv->nWaitersBlocked = 0; - cv->nWaitersToUnblock = 0; - cv->nWaitersGone = 0; - - if (sem_init(&(cv->semBlockLock), 0, 1) != 0) - { - result = errno; - goto FAIL0; - } - - if (sem_init(&(cv->semBlockQueue), 0, 0) != 0) - { - result = errno; - goto FAIL1; - } - - if ((result = pthread_mutex_init(&(cv->mtxUnblockLock), 0)) != 0) - { - goto FAIL2; - } - - result = 0; - - goto DONE; - - /* - * ------------- - * Failed... - * ------------- - */ -FAIL2: - (void) sem_destroy(&(cv->semBlockQueue)); - -FAIL1: - (void) sem_destroy(&(cv->semBlockLock)); - -FAIL0: - (void) free(cv); - cv = NULL; - -DONE: - *cond = cv; - - return result; - -} /* pthread_cond_init */ |