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89 lines
2.8 KiB
89 lines
2.8 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2012 Broadcom Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at: |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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******************************************************************************/ |
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/****************************************************************************** |
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* |
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* Encapsulate a condition variable for thread synchronization. |
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* |
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******************************************************************************/ |
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#pragma once |
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#include <pthread.h> |
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#include "Mutex.h" |
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class CondVar { |
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public: |
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/******************************************************************************* |
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** |
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** Function: CondVar |
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** |
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** Description: Initialize member variables. |
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** |
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** Returns: None. |
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** |
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*******************************************************************************/ |
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CondVar(); |
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/******************************************************************************* |
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** |
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** Function: ~CondVar |
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** |
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** Description: Cleanup all resources. |
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** |
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** Returns: None. |
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** |
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*******************************************************************************/ |
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~CondVar(); |
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/******************************************************************************* |
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** |
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** Function: wait |
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** |
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** Description: Block the caller and wait for a condition. |
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** |
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** Returns: None. |
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** |
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*******************************************************************************/ |
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void wait(Mutex& mutex); |
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/******************************************************************************* |
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** |
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** Function: wait |
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** |
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** Description: Block the caller and wait for a condition. |
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** millisec: Timeout in milliseconds. |
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** |
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** Returns: True if wait is successful; false if timeout occurs. |
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** |
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*******************************************************************************/ |
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bool wait(Mutex& mutex, long millisec); |
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/******************************************************************************* |
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** |
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** Function: notifyOne |
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** |
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** Description: Unblock the waiting thread. |
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** |
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** Returns: None. |
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** |
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*******************************************************************************/ |
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void notifyOne(); |
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private: |
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pthread_cond_t mCondition; |
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};
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