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/*
* 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;
pthread_mutex_init(&lock, NULL);
}
Thread::Thread(RunnableInterface *r)
{
this->r = r;
created = false;
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;
}
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