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Diffstat (limited to 'qpid/cpp/src/qpid/sys/posix/Mutex.cpp')
-rw-r--r-- | qpid/cpp/src/qpid/sys/posix/Mutex.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/sys/posix/Mutex.cpp b/qpid/cpp/src/qpid/sys/posix/Mutex.cpp new file mode 100644 index 0000000000..0e1f0d30c2 --- /dev/null +++ b/qpid/cpp/src/qpid/sys/posix/Mutex.cpp @@ -0,0 +1,46 @@ +/* + * + * 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 "qpid/sys/Mutex.h" + +namespace qpid { +namespace sys { + +/** + * Initialise a recursive mutex attr for use in creating mutexes later + * (we use pthread_once to make sure it is initialised exactly once) + */ + +namespace { +pthread_once_t onceControl = PTHREAD_ONCE_INIT; +pthread_mutexattr_t mutexattr; + +void initMutexattr() { + pthread_mutexattr_init(&mutexattr); + pthread_mutexattr_settype(&mutexattr, PTHREAD_MUTEX_RECURSIVE); +} +} + +const pthread_mutexattr_t* Mutex::getAttribute() { + pthread_once(&onceControl, initMutexattr); + return &mutexattr; +} + +}} // namespace qpid::sys |