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author | Alan Conway <aconway@apache.org> | 2009-07-15 16:45:21 +0000 |
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committer | Alan Conway <aconway@apache.org> | 2009-07-15 16:45:21 +0000 |
commit | 366916dc747b462858252271a6993d244f59768a (patch) | |
tree | de0f1a27ff50058c6f8e084c9ac1595892032f00 /cpp/include/qpid/sys/posix/Condition.h | |
parent | 6bcc8e7c8591c623fdcc5c75f6e3759bbe27eeca (diff) | |
download | qpid-python-366916dc747b462858252271a6993d244f59768a.tar.gz |
Merge branch 'move_public_h_to_include' into trunk
git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@794325 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/include/qpid/sys/posix/Condition.h')
-rw-r--r-- | cpp/include/qpid/sys/posix/Condition.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/cpp/include/qpid/sys/posix/Condition.h b/cpp/include/qpid/sys/posix/Condition.h new file mode 100644 index 0000000000..279039735a --- /dev/null +++ b/cpp/include/qpid/sys/posix/Condition.h @@ -0,0 +1,86 @@ +#ifndef _sys_posix_Condition_h +#define _sys_posix_Condition_h + +/* + * + * 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/posix/PrivatePosix.h" + +#include "qpid/sys/Mutex.h" +#include "qpid/sys/Time.h" + +#include <time.h> +#include <sys/errno.h> +#include <boost/noncopyable.hpp> + +namespace qpid { +namespace sys { + +/** + * A condition variable for thread synchronization. + */ +class Condition +{ + public: + inline Condition(); + inline ~Condition(); + inline void wait(Mutex&); + inline bool wait(Mutex&, const AbsTime& absoluteTime); + inline void notify(); + inline void notifyAll(); + + private: + pthread_cond_t condition; +}; + +Condition::Condition() { + QPID_POSIX_ASSERT_THROW_IF(pthread_cond_init(&condition, 0)); +} + +Condition::~Condition() { + QPID_POSIX_ABORT_IF(pthread_cond_destroy(&condition)); +} + +void Condition::wait(Mutex& mutex) { + QPID_POSIX_ASSERT_THROW_IF(pthread_cond_wait(&condition, &mutex.mutex)); +} + +bool Condition::wait(Mutex& mutex, const AbsTime& absoluteTime){ + struct timespec ts; + toTimespec(ts, Duration(absoluteTime)); + int status = pthread_cond_timedwait(&condition, &mutex.mutex, &ts); + if (status != 0) { + if (status == ETIMEDOUT) return false; + throw QPID_POSIX_ERROR(status); + } + return true; +} + +void Condition::notify(){ + QPID_POSIX_ASSERT_THROW_IF(pthread_cond_signal(&condition)); +} + +void Condition::notifyAll(){ + QPID_POSIX_ASSERT_THROW_IF(pthread_cond_broadcast(&condition)); +} + +}} +#endif /*!_sys_posix_Condition_h*/ |