| /* |
| * thread.cpp, thread class |
| * |
| * Copyright (c) 2009-2010 Wind River Systems, Inc. |
| * |
| * 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. |
| */ |
| |
| #include <pthread.h> |
| #include <thread.h> |
| |
| Thread::Thread() |
| { |
| r = NULL; |
| created = false; |
| id = 0; |
| |
| pthread_mutex_init(&lock, NULL); |
| } |
| |
| Thread::Thread(RunnableInterface *r) |
| { |
| this->r = r; |
| created = false; |
| id = 0; |
| |
| pthread_mutex_init(&lock, NULL); |
| } |
| |
| Thread::~Thread() |
| { |
| Join(); |
| |
| pthread_mutex_destroy(&lock); |
| } |
| |
| int Thread::Start(void) |
| { |
| int ret = 0; |
| |
| pthread_mutex_lock(&lock); |
| if (!created) { |
| ret = pthread_create(&id, NULL, Instance, this); |
| if (!ret) |
| created = true; |
| } |
| pthread_mutex_unlock(&lock); |
| |
| return ret; |
| } |
| |
| int Thread::Join(void) |
| { |
| int ret = 0; |
| |
| pthread_mutex_lock(&lock); |
| if (created) { |
| ret = pthread_join(id, NULL); |
| created = false; |
| } |
| pthread_mutex_unlock(&lock); |
| |
| return ret; |
| } |
| |
| void *Thread::Instance(void *p) |
| { |
| Thread *t = static_cast<Thread *>(p); |
| |
| t->Run(); |
| |
| return NULL; |
| } |
| |
| void Thread::Run(void) |
| { |
| if (r) |
| r->Run(); |
| else |
| return; |
| } |