| /** |
| * 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 <pthread.h> |
| #include <stdlib.h> // For random. |
| |
| #include <cstdlib> |
| #include <iostream> |
| |
| #include <mesos/executor.hpp> |
| |
| #include <stout/duration.hpp> |
| #include <stout/lambda.hpp> |
| #include <stout/os.hpp> |
| |
| using namespace mesos; |
| |
| using std::cout; |
| using std::endl; |
| using std::string; |
| |
| |
| void run(ExecutorDriver* driver, const TaskInfo& task) |
| { |
| os::sleep(Seconds(random() % 10)); |
| |
| TaskStatus status; |
| status.mutable_task_id()->MergeFrom(task.task_id()); |
| status.set_state(TASK_FINISHED); |
| |
| driver->sendStatusUpdate(status); |
| } |
| |
| |
| void* start(void* arg) |
| { |
| lambda::function<void(void)>* thunk = (lambda::function<void(void)>*) arg; |
| (*thunk)(); |
| delete thunk; |
| return NULL; |
| } |
| |
| |
| class LongLivedExecutor : public Executor |
| { |
| public: |
| virtual ~LongLivedExecutor() {} |
| |
| virtual void registered(ExecutorDriver* driver, |
| const ExecutorInfo& executorInfo, |
| const FrameworkInfo& frameworkInfo, |
| const SlaveInfo& slaveInfo) |
| { |
| cout << "Registered executor on " << slaveInfo.hostname() << endl; |
| } |
| |
| virtual void reregistered(ExecutorDriver* driver, |
| const SlaveInfo& slaveInfo) |
| { |
| cout << "Re-registered executor on " << slaveInfo.hostname() << endl; |
| } |
| |
| virtual void disconnected(ExecutorDriver* driver) {} |
| |
| virtual void launchTask(ExecutorDriver* driver, const TaskInfo& task) |
| { |
| cout << "Starting task " << task.task_id().value() << endl; |
| |
| lambda::function<void(void)>* thunk = |
| new lambda::function<void(void)>(lambda::bind(&run, driver, task)); |
| |
| pthread_t pthread; |
| if (pthread_create(&pthread, NULL, &start, thunk) != 0) { |
| TaskStatus status; |
| status.mutable_task_id()->MergeFrom(task.task_id()); |
| status.set_state(TASK_FAILED); |
| |
| driver->sendStatusUpdate(status); |
| } else { |
| pthread_detach(pthread); |
| |
| TaskStatus status; |
| status.mutable_task_id()->MergeFrom(task.task_id()); |
| status.set_state(TASK_RUNNING); |
| |
| driver->sendStatusUpdate(status); |
| } |
| } |
| |
| virtual void killTask(ExecutorDriver* driver, const TaskID& taskId) {} |
| virtual void frameworkMessage(ExecutorDriver* driver, const string& data) {} |
| virtual void shutdown(ExecutorDriver* driver) {} |
| virtual void error(ExecutorDriver* driver, const string& message) {} |
| }; |
| |
| |
| int main(int argc, char** argv) |
| { |
| LongLivedExecutor executor; |
| MesosExecutorDriver driver(&executor); |
| return driver.run() == DRIVER_STOPPED ? 0 : 1; |
| } |