基于对象：
| Noncopyable.h | MutexLock.h |
|
#ifndef __NONCOPYABLE_H__
#define __NONCOPYABLE_H__
#include<iostream>
using namespace std;
namespace meihao
{
class Noncopyable
{
protected:
Noncopyable(){}
~Noncopyable(){}
private:
Noncopyable(const Noncopyable&);
Noncopyable& operator=(const Noncopyable&);
};
};
#endif
|
#ifndef __MUTEXLOCK_H__
#define __MUTEXLOCK_H__
#include<iostream>
#include"Noncopyable.h"
#include<pthread.h>
using namespace std;
namespace meihao
{
class MutexLock:private Noncopyable
{
public:
MutexLock();
~MutexLock();
void lock();
void unlock();
pthread_mutex_t* getMutexPtr();
private:
pthread_mutex_t _mutex;
};
};
#endif
|
| Condition.h | Buffer.h |
|
#ifndef __CONDITION_H__
#define __CONDITION_H__
#include<iostream>
#include"Noncopyable.h"
#include<pthread.h>
using namespace std;
namespace meihao
{
class MutexLock;
class Condition:private Noncopyable
{
public:
Condition(MutexLock& mutex):_mutex(mutex)
{
pthread_cond_init(&_cond,NULL);
}
~Condition();
void wait();
void notify();
void notifyall();
private:
pthread_cond_t _cond;
MutexLock& _mutex;
};
};
#endif
|
#ifndef __BUFFER_H__
#define __BUFFER_H__
#include<iostream>
#include"MutexLock.h"
#include"Condition.h"
#include<queue>
using namespace std;
namespace meihao
{
typedef int DataType;
class Buffer
{
public:
Buffer(int);
~Buffer();
void push(DataType);
DataType pop();
bool full();
bool empty();
private:
MutexLock _mutex;
Condition _notFull;
Condition _notEmpty;
queue<DataType> _que;
int _size;
};
};
#endif
|
| thread.h | MutexLock.cpp |
|
#ifndef __THREAD_H__
#define __THREAD_H__
#include<iostream>
#include<pthread.h>
#include<functional>
#include"Noncopyable.h"
using namespace std;
namespace meihao
{
typedef std::function<void()> ThreadCallback;
class Thread:private Noncopyable
{
public:
Thread(ThreadCallback cb):_pthId(0),_isRunning(false),_cb(cb){}
~Thread();
void start();
void join();
static void* threadFunc(void*);
private:
pthread_t _pthId;
bool _isRunning;
ThreadCallback _cb;
};
};
#endif
|
#include<iostream>
#include"MutexLock.h"
using namespace std;
namespace meihao
{
MutexLock::MutexLock()
{
pthread_mutex_init(&_mutex,NULL);
}
MutexLock::~MutexLock()
{
pthread_mutex_destroy(&_mutex);
}
void MutexLock::lock()
{
pthread_mutex_lock(&_mutex);
}
void MutexLock::unlock()
{
pthread_mutex_unlock(&_mutex);
}
pthread_mutex_t* MutexLock::getMutexPtr()
{
return &_mutex;
}
};
|
| Condition.cpp | Buffer.cpp |
|
#include<iostream>
#include"Condition.h"
#include"MutexLock.h"
using namespace std;
namespace meihao
{
Condition::~Condition()
{
pthread_cond_destroy(&_cond);
}
void Condition::wait()
{
pthread_cond_wait(&_cond,_mutex.getMutexPtr());
}
void Condition::notify()
{
pthread_cond_signal(&_cond);
}
void Condition::notifyall()
{
pthread_cond_broadcast(&_cond);
}
};
|
#include<iostream>
#include"Buffer.h"
using namespace std;
namespace meihao
{
Buffer::Buffer(int size):_mutex(),_notFull(_mutex),_notEmpty(_mutex),_size(size){}
Buffer::~Buffer(){}
bool Buffer::full()
{
return _size == _que.size();
}
bool Buffer::empty()
{
return _que.size() == 0; // 这个地方脑子坏了，写成_size == 0; 导致后面pop等待作废
}
void Buffer::push(DataType value)
{
_mutex.lock();
if(full())
{
_notFull.wait(); // 等待条件变量，队列没有满，唤醒
}
_que.push(value);
cout<<"prodece a num "<<value<<endl;
_notEmpty.notify(); // 有一个元素进队列，_notEmpty的条件变量满足
_mutex.unlock();
}
DataType Buffer::pop()
{
_mutex.lock();
if(empty())
{
_notEmpty.wait(); // 等待不空的条件变量_notEmpty满足
}
DataType tmp = _que.front();
_que.pop();
cout<<"consumer a num "<<tmp<<endl;
_notFull.notify();
_mutex.unlock();
return tmp;
}
};
|
| thread.cpp | test.cpp |
|
#include<iostream>
#include"Thread.h"
using namespace std;
namespace meihao
{
Thread::~Thread()
{
pthread_detach(_pthId);
}
void Thread::start()
{
pthread_create(&_pthId,NULL,&Thread::threadFunc,this); // 调用成员函数的this指针也要传递过去
_isRunning = true;
}
void Thread::join()
{
if(_isRunning)
{
pthread_join(_pthId,NULL);
_isRunning = false;
}
}
void* Thread::threadFunc(void* arg)
{
Thread* pthread = static_cast<Thread*> (arg);
if(NULL!=pthread)
{
pthread->_cb();
}
}
};
|
#include<iostream>
#include"Buffer.h"
#include<time.h>
#include<unistd.h>
#include"Thread.h"
using namespace std;
struct Producer
{
void produce(meihao::Buffer& buffer)
{
::srand(time(NULL));
int i = 0;
while(i<5)
{
int num = rand()%100;
buffer.push(num);
//cout<<"prodece a num "<<num<<endl; // 放在这里可能导致不一致了
sleep(1);
i++;
}
}
};
struct Consumer
{
void consumer(meihao::Buffer& buffer)
{
int i = 0;
while(i<5)
{
int num = buffer.pop();
//cout<<"consumer a num "<<num<<endl;
sleep(2);
i++;
}
}
};
int main()
{
Producer p1;
Consumer c1;
meihao::Buffer buffer(5);
meihao::Thread produceThread(bind(&Producer::produce,&p1,ref(buffer)));
//生产者线程
meihao::Thread consumThread(bind(&Consumer::consumer,&c1,ref(buffer)));
//消费者线程
produceThread.start();
consumThread.start();
produceThread.join();
consumThread.join();
return 0;
}
|
面向对象：
| Nocopyable.h | MutexLock.h |
|
#ifndef __NONCOPYABLE_H__
#define __NONCOPYABLE_H__
#include<iostream>
using namespace std;
namespace meihao
{
class Noncopyable
{
protected:
Noncopyable(){}
~Noncopyable(){}
private:
Noncopyable(const Noncopyable&);
Noncopyable& operator=(const Noncopyable&);
};
};
#endif
|
#ifndef __MUTEXLOCK_H__
#define __MUTEXLOCK_H__
#include<iostream>
#include"Noncopyable.h"
#include<pthread.h>
using namespace std;
namespace meihao
{
class MutexLock:private Noncopyable
{
public:
MutexLock();
~MutexLock();
void lock();
void unlock();
pthread_mutex_t* getMutexPtr();
private:
pthread_mutex_t _mutex;
};
};
#endif
|
| Condition.h | Buffer.h |
|
#ifndef __CONDITION_H__
#define __CONDITION_H__
#include<iostream>
#include"Noncopyable.h"
#include<pthread.h>
using namespace std;
namespace meihao
{
class MutexLock;
class Condition:private Noncopyable
{
public:
Condition(MutexLock& mutex):_mutex(mutex)
{
pthread_cond_init(&_cond,NULL);
}
~Condition();
void wait();
void notify();
void notifyall();
private:
pthread_cond_t _cond;
MutexLock& _mutex;
};
};
#endif
|
#ifndef __BUFFER_H__
#define __BUFFER_H__
#include<iostream>
#include"MutexLock.h"
#include"Condition.h"
#include<queue>
using namespace std;
namespace meihao
{
typedef int DataType;
class Buffer
{
public:
Buffer(int);
~Buffer();
void push(DataType);
DataType pop();
bool full();
bool empty();
private:
MutexLock _mutex;
Condition _notFull;
Condition _notEmpty;
queue<DataType> _que;
int _size;
};
};
#endif
|
| Thread.h | ProduceThread.h |
|
#ifndef __THREAD_H__
#define __THREAD_H__
#include<iostream>
#include"Noncopyable.h"
#include<pthread.h>
using namespace std;
namespace meihao
{
class Thread:private Noncopyable
{
public:
Thread();
void start();
void join();
virtual void run() = 0;
virtual ~Thread();
static void* threadFunc(void*);
private:
pthread_t _pthId;
bool _isRunning;
};
};
#endif
|
#ifndef __PRODUCETHREAD_H__
#define __PRODUCETHREAD_H__
#include<iostream>
#include"thread.h"
#include"Buffer.h"
using namespace std;
namespace meihao
{
class ProduceThread:public Thread
{
public:
ProduceThread(Buffer& buff):_buff(buff){}
void run();
private:
Buffer& _buff;
};
};
#endif
|
| ConsumerThread.h | thread.cpp |
|
#ifndef __CONSUMERTHREAD_H__
#define __CONSUMERTHREAD_H__
#include<iostream>
#include"thread.h"
#include"Buffer.h"
using namespace std;
namespace meihao
{
class ConsumerThread:public Thread
{
public:
ConsumerThread(Buffer& buff):_buff(buff){}
void run();
private:
Buffer& _buff;
};
};
#endif
|
#include<iostream>
#include"thread.h"
using namespace std;
namespace meihao
{
Thread::Thread():_pthId(0),_isRunning(false){}
void Thread::start()
{
pthread_create(&_pthId,NULL,&Thread::threadFunc,this);
_isRunning = true;
}
void Thread::join()
{
if(_isRunning)
{
pthread_join(_pthId,NULL);
}
}
Thread::~Thread()
{
pthread_detach(_pthId);
}
void* Thread::threadFunc(void* arg)
{
Thread* pthread = static_cast<Thread*> (arg);
if(NULL!=pthread)
{
pthread->run();
}
}
};
|
| ProduceThread.cpp | ConsumerThread.cpp |
|
#include<iostream>
#include"ProduceThread.h"
#include<time.h>
#include<unistd.h>
using namespace std;
namespace meihao
{
void ProduceThread::run()
{
::srand(time(NULL));
int i = 0;
while(i<5)
{
int num = ::rand()%100;
_buff.push(num);
cout<<"produce a num "<<num<<endl;
sleep(1);
i++;
}
}
};
|
#include<iostream>
#include"ConsumerThread.h"
#include<unistd.h>
using namespace std;
namespace meihao
{
void ConsumerThread::run()
{
int i = 0;
while(i<5)
{
int num = _buff.pop();
cout<<"Consumer a num "<<num<<endl;
sleep(2);
i++;
}
}
};
|
| MutexLock.cpp | Condition.cpp |
|
#include<iostream>
#include"MutexLock.h"
using namespace std;
namespace meihao
{
MutexLock::MutexLock()
{
pthread_mutex_init(&_mutex,NULL);
}
MutexLock::~MutexLock()
{
pthread_mutex_destroy(&_mutex);
}
void MutexLock::lock()
{
pthread_mutex_lock(&_mutex);
}
void MutexLock::unlock()
{
pthread_mutex_unlock(&_mutex);
}
pthread_mutex_t* MutexLock::getMutexPtr()
{
return &_mutex;
}
};
|
#include<iostream>
#include"Condition.h"
#include"MutexLock.h"
using namespace std;
namespace meihao
{
Condition::~Condition()
{
pthread_cond_destroy(&_cond);
}
void Condition::wait()
{
pthread_cond_wait(&_cond,_mutex.getMutexPtr());
}
void Condition::notify()
{
pthread_cond_signal(&_cond);
}
void Condition::notifyall()
{
pthread_cond_broadcast(&_cond);
}
};
|
| Buffer.cpp | test.cpp |
|
#include<iostream>
#include"Buffer.h"
using namespace std;
namespace meihao
{
Buffer::Buffer(int size):_mutex(),_notFull(_mutex),_notEmpty(_mutex),_size(size){}
Buffer::~Buffer(){}
bool Buffer::full()
{
return _size == _que.size();
}
bool Buffer::empty()
{
return _que.size() == 0; // 这个地方脑子坏了，写成_size == 0; 导致后面pop等待作废
}
void Buffer::push(DataType value)
{
_mutex.lock();
if(full())
{
_notFull.wait(); // 等待条件变量，队列没有满，唤醒
}
_que.push(value);
_notEmpty.notify(); // 有一个元素进队列，_notEmpty的条件变量满足
_mutex.unlock();
}
DataType Buffer::pop()
{
_mutex.lock();
if(empty())
{
_notEmpty.wait(); // 等待不空的条件变量_notEmpty满足
}
DataType tmp = _que.front();
_que.pop();
_notFull.notify();
_mutex.unlock();
return tmp;
}
};
|
#include<iostream>
#include"ProduceThread.h"
#include"ConsumerThread.h"
using namespace std;
int main()
{
meihao::Buffer buffer(10);
meihao::Thread* produce = new meihao::ProduceThread(buffer);
meihao::Thread* consumer = new meihao::ConsumerThread(buffer);
produce->start();
consumer->start();
produce->join();
consumer->join();
delete produce;
delete consumer;
return 0;
}
|
