| /* |
| * Copyright 2004,2005 The Apache Software Foundation. |
| * |
| * Licensed 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 <axis2_thread.h> |
| #include "axis2_thread_mutex_windows.h" |
| |
| static axis2_status_t thread_mutex_cleanup(void *data) |
| { |
| axis2_thread_mutex_t *lock = data; |
| |
| if (lock->type == thread_mutex_critical_section) |
| { |
| DeleteCriticalSection(&lock->section); |
| } |
| else |
| { |
| if (!CloseHandle(lock->handle)) { |
| return AXIS2_FAILURE; |
| } |
| } |
| return AXIS2_SUCCESS; |
| } |
| |
| AXIS2_DECLARE(axis2_thread_mutex_t *) axis2_thread_mutex_create(axis2_allocator_t *allocator, |
| unsigned int flags) |
| { |
| axis2_thread_mutex_t *mutex = NULL; |
| |
| mutex = (axis2_thread_mutex_t *)AXIS2_MALLOC(allocator, sizeof(*mutex)); |
| |
| if (flags == AXIS2_THREAD_MUTEX_DEFAULT) /*unnested*/ |
| { |
| /* Use an auto-reset signaled event, ready to accept one |
| * waiting thread. |
| */ |
| mutex->type = thread_mutex_unnested_event; |
| mutex->handle = CreateEvent(NULL, FALSE, TRUE, NULL); |
| } |
| else |
| { |
| /*TODO:support critical_section and nested_mutex*/ |
| } |
| |
| return mutex; |
| } |
| |
| AXIS2_DECLARE(axis2_status_t) axis2_thread_mutex_lock(axis2_thread_mutex_t *mutex) |
| { |
| if (mutex->type == thread_mutex_critical_section) |
| { |
| EnterCriticalSection(&mutex->section); |
| } |
| else |
| { |
| DWORD rv = WaitForSingleObject(mutex->handle, INFINITE); |
| if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) |
| { |
| return AXIS2_FAILURE; |
| /*can be either BUSY or an os specific error*/ |
| } |
| } |
| return AXIS2_SUCCESS; |
| } |
| |
| AXIS2_DECLARE(axis2_status_t) axis2_thread_mutex_trylock(axis2_thread_mutex_t *mutex) |
| { |
| |
| if (mutex->type == thread_mutex_critical_section) |
| { |
| /*TODO:implement trylock for critical section*/ |
| } |
| else |
| { |
| DWORD rv = WaitForSingleObject(mutex->handle, 0); |
| if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) |
| { |
| /*can be either BUSY or an os specific error*/ |
| return AXIS2_FAILURE; |
| } |
| } |
| return AXIS2_SUCCESS; |
| } |
| |
| AXIS2_DECLARE(axis2_status_t) axis2_thread_mutex_unlock(axis2_thread_mutex_t *mutex) |
| { |
| if (mutex->type == thread_mutex_critical_section) |
| { |
| LeaveCriticalSection(&mutex->section); |
| } |
| else if (mutex->type == thread_mutex_unnested_event) |
| { |
| if (!SetEvent(mutex->handle)) |
| { |
| /*os specific error*/ |
| return AXIS2_FAILURE; |
| } |
| } |
| else if (mutex->type == thread_mutex_nested_mutex) |
| { |
| if (!ReleaseMutex(mutex->handle)) |
| { |
| /*os specific error*/ |
| return AXIS2_FAILURE; |
| } |
| } |
| return AXIS2_SUCCESS; |
| } |
| |
| AXIS2_DECLARE(axis2_status_t) axis2_thread_mutex_destroy(axis2_thread_mutex_t *mutex) |
| { |
| return thread_mutex_cleanup((void*)mutex); |
| } |