| /** |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed 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. |
| */ |
| |
| #ifndef MOCK_RIL_WORKER_H_ |
| #define MOCK_RIL_WORKER_H_ |
| |
| #include <queue> |
| #include <list> |
| #include <vector> |
| #include <pthread.h> |
| #include <cutils/atomic.h> |
| #include <utils/SystemClock.h> |
| |
| /** |
| * A Thread class. |
| * |
| * 0) Extend WorkerThread creating a Worker method which |
| * monitors isRunning(). For example: |
| * |
| * void * Worker(void *param) { |
| * while (isRunning() == 0) { |
| * pthread_mutex_lock(&mutex_); |
| * while (isRunning() && !SOME-CONDITION) { |
| * pthread_cond_wait(&cond_, &mutex_); |
| * } |
| * if (isRunning()) { |
| * DO-WORK |
| * } else { |
| * pthread_mutex_unlock(&mutex_); |
| * } |
| * } |
| * return NULL; |
| * } |
| * |
| * 1) Create the WorkerThread. |
| * 2) Execute Run passing a param which will be passed to Worker. |
| * 3) Call Stop() or destroy the thread to stop processing. |
| * |
| */ |
| class WorkerThread { |
| protected: |
| pthread_attr_t attr_; |
| pthread_mutex_t mutex_; |
| pthread_cond_t cond_; |
| pthread_t tid_; |
| void *workerParam_; |
| |
| #define STATE_INITIALIZED 1 |
| #define STATE_RUNNING 2 |
| #define STATE_STOPPING 3 |
| #define STATE_STOPPED 4 |
| int32_t state_; |
| |
| static void * Work(void *param); |
| |
| virtual bool isRunning(); |
| |
| public: |
| WorkerThread(); |
| |
| virtual ~WorkerThread(); |
| |
| // Return true if changed from STATE_RUNNING to STATE_STOPPING |
| virtual bool BeginStopping(); |
| |
| // Wait until state is not STATE_STOPPING |
| virtual void WaitUntilStopped(); |
| |
| virtual void Stop(); |
| |
| virtual int Run(void *workerParam); |
| |
| /** |
| * Method called to do work, see example above. |
| * While running isRunning() must be monitored. |
| */ |
| virtual void *Worker(void *) = 0; |
| }; |
| |
| |
| /** |
| * A WorkerQueue. |
| * |
| * 0) Extend overriding Process |
| * 1) Create an instance |
| * 2) Call Run. |
| * 3) Call Add, passing a pointer which is added to a queue |
| * 4) Process will be called with a pointer as work can be done. |
| */ |
| class WorkerQueue { |
| private: |
| friend class WorkerQueueThread; |
| |
| struct Record { |
| int64_t time; |
| void *p; |
| }; |
| |
| class record_compare { |
| public: |
| // To get ascending order return true if lhs > rhs. |
| bool operator() (const struct Record* lhs, const struct Record* rhs) const { |
| return lhs->time > rhs->time; |
| } |
| }; |
| |
| std::list<struct Record *> q_; // list of records to be processed |
| std::list<struct Record *> free_list_; // list of records that have been released |
| std::priority_queue<struct Record *, std::vector<struct Record *>, record_compare> delayed_q_; |
| // list of records that are delayed |
| class WorkerQueueThread *wqt_; |
| |
| protected: |
| struct Record *obtain_record(void *p, int delay_in_ms); |
| |
| void release_record(struct Record *r); |
| |
| public: |
| WorkerQueue(); |
| |
| virtual ~WorkerQueue(); |
| |
| int Run(); |
| |
| void Stop(); |
| |
| void Add(void *p); |
| |
| void AddDelayed(void *p, int delay_in_ms); |
| |
| virtual void Process(void *) = 0; |
| }; |
| |
| extern void testWorker(); |
| |
| #endif // MOCK_RIL_WORKER_H_ |