| |
| /* |
| * 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 <axutil_thread.h> |
| #include <platforms/windows/axutil_thread_mutex_windows.h> |
| |
| static axis2_status_t |
| thread_mutex_cleanup( |
| void *data) |
| { |
| axutil_thread_mutex_t *lock = NULL; |
| axutil_allocator_t *allocator = NULL; |
| if (!data) |
| return AXIS2_FAILURE; |
| |
| lock = (axutil_thread_mutex_t *) data; |
| allocator = lock->allocator; |
| |
| if (lock->type == thread_mutex_critical_section) |
| { |
| DeleteCriticalSection(&lock->section); |
| } |
| else |
| { |
| if (!CloseHandle(lock->handle)) |
| { |
| return AXIS2_FAILURE; |
| } |
| } |
| |
| AXIS2_FREE(allocator, lock); |
| return AXIS2_SUCCESS; |
| } |
| |
| AXIS2_EXTERN axutil_thread_mutex_t *AXIS2_CALL |
| axutil_thread_mutex_create( |
| axutil_allocator_t * allocator, |
| unsigned int flags) |
| { |
| axutil_thread_mutex_t *mutex = NULL; |
| |
| mutex = |
| (axutil_thread_mutex_t *) AXIS2_MALLOC(allocator, |
| sizeof(axutil_thread_mutex_t)); |
| mutex->allocator = allocator; |
| |
| 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_EXTERN axis2_status_t AXIS2_CALL |
| axutil_thread_mutex_lock( |
| axutil_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_EXTERN axis2_status_t AXIS2_CALL |
| axutil_thread_mutex_trylock( |
| axutil_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_EXTERN axis2_status_t AXIS2_CALL |
| axutil_thread_mutex_unlock( |
| axutil_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_EXTERN axis2_status_t AXIS2_CALL |
| axutil_thread_mutex_destroy( |
| axutil_thread_mutex_t * mutex) |
| { |
| return thread_mutex_cleanup((void *) mutex); |
| } |