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 #ifndef THREAD_MUTEX_H 18 #define THREAD_MUTEX_H 19 20 #include "apr_pools.h" 21 22 typedef enum thread_mutex_type { 23 thread_mutex_critical_section, 24 thread_mutex_unnested_event, 25 thread_mutex_nested_mutex 26 } thread_mutex_type; 27 28 /* handle applies only to unnested_event on all platforms 29 * and nested_mutex on Win9x only. Otherwise critical_section 30 * is used for NT nexted mutexes providing optimal performance. 31 */ 32 struct apr_thread_mutex_t { 33 apr_pool_t *pool; 34 thread_mutex_type type; 35 HANDLE handle; 36 CRITICAL_SECTION section; 37 }; 38 39 #endif /* THREAD_MUTEX_H */ 40 41