diff options
Diffstat (limited to 'locks/netware/thread_rwlock.c')
-rw-r--r-- | locks/netware/thread_rwlock.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/locks/netware/thread_rwlock.c b/locks/netware/thread_rwlock.c new file mode 100644 index 0000000..f971aef --- /dev/null +++ b/locks/netware/thread_rwlock.c @@ -0,0 +1,102 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr.h" +#include "apr_private.h" +#include "apr_general.h" +#include "apr_strings.h" +#include "apr_arch_thread_rwlock.h" +#include "apr_portable.h" + +static apr_status_t thread_rwlock_cleanup(void *data) +{ + apr_thread_rwlock_t *rwlock = (apr_thread_rwlock_t *)data; + + NXRwLockFree (rwlock->rwlock); + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock, + apr_pool_t *pool) +{ + apr_thread_rwlock_t *new_rwlock = NULL; + + NXHierarchy_t hierarchy = 1; /* for libc NKS NXRwLockAlloc */ + NXLockInfo_t *info; /* for libc NKS NXRwLockAlloc */ + + new_rwlock = (apr_thread_rwlock_t *)apr_pcalloc(pool, sizeof(apr_thread_rwlock_t)); + + if(new_rwlock ==NULL) { + return APR_ENOMEM; + } + new_rwlock->pool = pool; + + info = (NXLockInfo_t *)apr_pcalloc(pool, sizeof(NXLockInfo_t)); + new_rwlock->rwlock = NXRwLockAlloc(hierarchy, info); + if(new_rwlock->rwlock == NULL) + return APR_ENOMEM; + + apr_pool_cleanup_register(new_rwlock->pool, new_rwlock, thread_rwlock_cleanup, + apr_pool_cleanup_null); + *rwlock = new_rwlock; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock) +{ + NXRdLock(rwlock->rwlock); + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock) +{ + if (!NXTryRdLock(rwlock->rwlock)) + return APR_EBUSY; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock) +{ + NXWrLock(rwlock->rwlock); + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock) +{ + if (!NXTryWrLock(rwlock->rwlock)) + return APR_EBUSY; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock) +{ + NXRwUnlock(rwlock->rwlock); + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock) +{ + apr_status_t stat; + if ((stat = thread_rwlock_cleanup(rwlock)) == APR_SUCCESS) { + apr_pool_cleanup_kill(rwlock->pool, rwlock, thread_rwlock_cleanup); + return APR_SUCCESS; + } + return stat; +} + +APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock) + |