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Member "apr-1.7.0/locks/netware/thread_cond.c" (17 Sep 2016, 3342 Bytes) of package /linux/www/apr-1.7.0.tar.bz2:


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    1 /* Licensed to the Apache Software Foundation (ASF) under one or more
    2  * contributor license agreements.  See the NOTICE file distributed with
    3  * this work for additional information regarding copyright ownership.
    4  * The ASF licenses this file to You under the Apache License, Version 2.0
    5  * (the "License"); you may not use this file except in compliance with
    6  * the License.  You may obtain a copy of the License at
    7  *
    8  *     http://www.apache.org/licenses/LICENSE-2.0
    9  *
   10  * Unless required by applicable law or agreed to in writing, software
   11  * distributed under the License is distributed on an "AS IS" BASIS,
   12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   13  * See the License for the specific language governing permissions and
   14  * limitations under the License.
   15  */
   16 
   17 #include <nks/errno.h>
   18 
   19 #include "apr.h"
   20 #include "apr_private.h"
   21 #include "apr_general.h"
   22 #include "apr_strings.h"
   23 #include "apr_arch_thread_mutex.h"
   24 #include "apr_arch_thread_cond.h"
   25 #include "apr_portable.h"
   26 
   27 static apr_status_t thread_cond_cleanup(void *data)
   28 {
   29     apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
   30 
   31     NXCondFree(cond->cond);        
   32     return APR_SUCCESS;
   33 } 
   34 
   35 APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
   36                                                  apr_pool_t *pool)
   37 {
   38     apr_thread_cond_t *new_cond = NULL;
   39 
   40     new_cond = (apr_thread_cond_t *)apr_pcalloc(pool, sizeof(apr_thread_cond_t));
   41     
   42     if(new_cond ==NULL) {
   43         return APR_ENOMEM;
   44     }     
   45     new_cond->pool = pool;
   46 
   47     new_cond->cond = NXCondAlloc(NULL);
   48     
   49     if(new_cond->cond == NULL)
   50         return APR_ENOMEM;
   51 
   52     apr_pool_cleanup_register(new_cond->pool, new_cond, 
   53                                 (void*)thread_cond_cleanup,
   54                                 apr_pool_cleanup_null);
   55    *cond = new_cond;
   56     return APR_SUCCESS;
   57 }
   58 
   59 APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
   60                                                apr_thread_mutex_t *mutex)
   61 {
   62     if (NXCondWait(cond->cond, mutex->mutex) != 0)
   63         return APR_EINTR;
   64     return APR_SUCCESS;
   65 }
   66 
   67 APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
   68                                                     apr_thread_mutex_t *mutex,
   69                                                     apr_interval_time_t timeout)
   70 {
   71     int rc;
   72     if (timeout < 0) {
   73         rc = NXCondWait(cond->cond, mutex->mutex);
   74     }
   75     else {
   76         timeout = timeout * 1000 / NXGetSystemTick();
   77         rc = NXCondTimedWait(cond->cond, mutex->mutex, timeout);
   78         if (rc == NX_ETIMEDOUT) {
   79             return APR_TIMEUP;
   80         }
   81     }
   82     if (rc != 0) {
   83         return APR_EINTR;
   84     }
   85     return APR_SUCCESS;
   86 }
   87 
   88 APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
   89 {
   90     NXCondSignal(cond->cond);
   91     return APR_SUCCESS;
   92 }
   93 
   94 APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
   95 {
   96     NXCondBroadcast(cond->cond);
   97     return APR_SUCCESS;
   98 }
   99 
  100 APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
  101 {
  102     apr_status_t stat;
  103     if ((stat = thread_cond_cleanup(cond)) == APR_SUCCESS) {
  104         apr_pool_cleanup_kill(cond->pool, cond, thread_cond_cleanup);
  105         return APR_SUCCESS;
  106     }
  107     return stat;
  108 }
  109 
  110 APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
  111