97 lines
3.0 KiB
C++
Executable File
97 lines
3.0 KiB
C++
Executable File
/*
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* Copyright (C) 2018 Fuzhou Rockchip Electronics Co.Ltd.
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*
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* Modification based on code covered by the Apache License, Version 2.0 (the "License").
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* You may not use this software 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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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS TO YOU ON AN "AS IS" BASIS
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* AND ANY AND ALL WARRANTIES AND REPRESENTATIONS WITH RESPECT TO SUCH SOFTWARE, WHETHER EXPRESS,
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* IMPLIED, STATUTORY OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF TITLE,
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* NON-INFRINGEMENT, MERCHANTABILITY, SATISFACTROY QUALITY, ACCURACY OR FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED.
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*
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* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Copyright (C) 2015 The Android Open Source Project
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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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#ifndef ANDROID_WORKER_H_
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#define ANDROID_WORKER_H_
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#include <pthread.h>
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#include <stdint.h>
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#include <string>
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namespace android {
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class Worker {
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public:
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pthread_mutex_t* getLock();
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int Lock();
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int Unlock();
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// Must be called with the lock acquired
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int SignalLocked();
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int ExitLocked();
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// Convenience versions of above, acquires the lock
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int Signal();
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int Exit();
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protected:
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Worker(const char *name, int priority);
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virtual ~Worker();
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int InitWorker();
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bool initialized() const;
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virtual void Routine() = 0;
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/*
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* Must be called with the lock acquired. max_nanoseconds may be negative to
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* indicate infinite timeout, otherwise it indicates the maximum time span to
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* wait for a signal before returning.
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* Returns -EINTR if interrupted by exit request, or -ETIMEDOUT if timed out
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*/
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int WaitForSignalOrExitLocked(int64_t max_nanoseconds = -1);
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private:
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static void *InternalRoutine(void *worker);
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// Must be called with the lock acquired
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int SignalThreadLocked(bool exit);
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std::string name_;
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int priority_;
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pthread_t thread_;
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pthread_mutex_t lock_;
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pthread_cond_t cond_;
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bool exit_;
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bool initialized_;
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};
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}
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#endif
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