《ASCE1885的源码分析》の跨平台线程对象Thread封装基类
2010-09-11 20:00
302 查看
首先当然是先定义头文件Thread.h咯,如下:
#ifndef _THREAD_H
#define _THREAD_H
#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#endif
#ifdef _WIN32
typedef unsigned threadfunc_t;
typedef void* threadparam_t;
#define STDPREFIX __stdcall
#else
typedef void* threadfunc_t;
typedef void* threadparam_t;
#define STDPREFIX
#endif
//线程的基类
class Thread
{
public:
Thread(bool release=true);
virtual ~Thread();
static threadfunc_t STDPREFIX StartThread(threadparam_t);
virtual void Run()=0; //纯虚函数,由派生类实现
#ifdef _WIN32
HANDLE GetThread(){return m_thread;}
unsigned GetThreadId(){return m_dwThreadId;}
#else
pthread_t GetThread(){return m_thread;}
#endif
bool IsRunning();
void SetRunning(bool x);
bool IsReleased();
void SetRelease(bool x);
bool DeleteOnExit();
void SetDeleteOnExit(bool x=true);
bool IsDestructor();
protected:
#ifdef _WIN32
HANDLE m_thread;
unsigned m_dwThreadId;
#else
pthread_t m_thread;
#endif
private:
Thread(const Thread&){}
Thread& operator=(const Thread&){return *this;}
bool m_running;
bool m_release;
bool m_b_delete_on_exit;
bool m_b_destructor;
};
#endif
接着是实现文件Thread.cpp,由于代码比较简单,就不多解释了,直接看代码里的注释就行了:
#include <stdio.h>
#ifdef _WIN32
#include <process.h>
#else
#include <unistd.h>
#endif
#include "Thread.h"
Thread::Thread(bool release)
:m_thread(0),
m_running(true),
m_release(false),
m_b_delete_on_exit(false),
m_b_destructor(false)
{
#ifdef _WIN32
m_thread = (HANDLE)_beginthreadex(NULL, 0, &StartThread,
this, 0, &m_dwThreadId);
#else
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if(pthread_create(&m_thread, &attr, StartThread, this) == 1)
{
perror("Thread:create failed");
SetRunning(false);
}
#endif
m_release = release;
}
Thread::~Thread()
{
m_b_destructor = true;
if(m_running)
{
SetRelease(true);
SetRunning(false);
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
#ifdef _WIN32
if(m_thread)
::CloseHandle(m_thread);
#endif
}
//线程函数
threadfunc_t STDPREFIX Thread::StartThread(threadparam_t zz)
{
Thread *p = (Thread*)zz;
while(p->m_running && !p->m_release)
{
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
if(p->m_running)
{
p->Run();
}
p->SetRunning(false); //Run()运行完了,或根本没运行
if(p->DeleteOnExit() && !p->IsDestructor())
{
delete p;
}
#ifdef _WIN32
_endthreadex(0);
#endif
return (threadfunc_t)NULL;
}
bool Thread::IsRunning()
{
return m_running;
}
void Thread::SetRunning(bool x)
{
m_running = x;
}
bool Thread::IsReleased()
{
return m_release;
}
void Thread::SetRelease(bool x)
{
m_release = x;
}
//退出时是否释放线程对象Thread*
bool Thread::DeleteOnExit()
{
return m_b_delete_on_exit;
}
void Thread::SetDeleteOnExit(bool x)
{
m_b_delete_on_exit = x;
}
//是否已经调用了析构函数
bool Thread::IsDestructor()
{
return m_b_destructor;
}
#ifndef _THREAD_H
#define _THREAD_H
#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#endif
#ifdef _WIN32
typedef unsigned threadfunc_t;
typedef void* threadparam_t;
#define STDPREFIX __stdcall
#else
typedef void* threadfunc_t;
typedef void* threadparam_t;
#define STDPREFIX
#endif
//线程的基类
class Thread
{
public:
Thread(bool release=true);
virtual ~Thread();
static threadfunc_t STDPREFIX StartThread(threadparam_t);
virtual void Run()=0; //纯虚函数,由派生类实现
#ifdef _WIN32
HANDLE GetThread(){return m_thread;}
unsigned GetThreadId(){return m_dwThreadId;}
#else
pthread_t GetThread(){return m_thread;}
#endif
bool IsRunning();
void SetRunning(bool x);
bool IsReleased();
void SetRelease(bool x);
bool DeleteOnExit();
void SetDeleteOnExit(bool x=true);
bool IsDestructor();
protected:
#ifdef _WIN32
HANDLE m_thread;
unsigned m_dwThreadId;
#else
pthread_t m_thread;
#endif
private:
Thread(const Thread&){}
Thread& operator=(const Thread&){return *this;}
bool m_running;
bool m_release;
bool m_b_delete_on_exit;
bool m_b_destructor;
};
#endif
接着是实现文件Thread.cpp,由于代码比较简单,就不多解释了,直接看代码里的注释就行了:
#include <stdio.h>
#ifdef _WIN32
#include <process.h>
#else
#include <unistd.h>
#endif
#include "Thread.h"
Thread::Thread(bool release)
:m_thread(0),
m_running(true),
m_release(false),
m_b_delete_on_exit(false),
m_b_destructor(false)
{
#ifdef _WIN32
m_thread = (HANDLE)_beginthreadex(NULL, 0, &StartThread,
this, 0, &m_dwThreadId);
#else
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if(pthread_create(&m_thread, &attr, StartThread, this) == 1)
{
perror("Thread:create failed");
SetRunning(false);
}
#endif
m_release = release;
}
Thread::~Thread()
{
m_b_destructor = true;
if(m_running)
{
SetRelease(true);
SetRunning(false);
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
#ifdef _WIN32
if(m_thread)
::CloseHandle(m_thread);
#endif
}
//线程函数
threadfunc_t STDPREFIX Thread::StartThread(threadparam_t zz)
{
Thread *p = (Thread*)zz;
while(p->m_running && !p->m_release)
{
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
if(p->m_running)
{
p->Run();
}
p->SetRunning(false); //Run()运行完了,或根本没运行
if(p->DeleteOnExit() && !p->IsDestructor())
{
delete p;
}
#ifdef _WIN32
_endthreadex(0);
#endif
return (threadfunc_t)NULL;
}
bool Thread::IsRunning()
{
return m_running;
}
void Thread::SetRunning(bool x)
{
m_running = x;
}
bool Thread::IsReleased()
{
return m_release;
}
void Thread::SetRelease(bool x)
{
m_release = x;
}
//退出时是否释放线程对象Thread*
bool Thread::DeleteOnExit()
{
return m_b_delete_on_exit;
}
void Thread::SetDeleteOnExit(bool x)
{
m_b_delete_on_exit = x;
}
//是否已经调用了析构函数
bool Thread::IsDestructor()
{
return m_b_destructor;
}
相关文章推荐
- 《ASCE1885的源码分析》の跨平台线程对象Thread封装基类
- Thread类的sleep()方法和对象的wait()方法都能使线程暂停执行,他们有什么区别?
- 调用Thread类的方法:public final String getName() 为什么得到的线程对象的名称默认是:Thread-0、Thread-1、Thread-2、...呢?
- MFC中 如何在类对象内部创建线程(AfxBeginThread())
- 跨平台的线程封装类
- “ThreadPool 对象中没有足够的自由线程来完成操作”的现象和解决办法
- Qt中次线程里创建对象,出现Cannot create children for a parent that is in a different thread
- 【Thread】java线程之对象锁、类锁、线程安全
- java线程基础巩固---构造Thread对象你也许不知道的几件事
- JAVA之旅(十二)——Thread,run和start的特点,线程运行状态,获取线程对象和名称,多线程实例演示,使用Runnable接口
- The Java™ Tutorials — Concurrency :Thread Objects 线程对象
- c++类和类的封装,对象线程封装
- Android线程封装基类Thread
- NSThread线程对象
- C++跨平台技术 - 线程Thread
- 疑问线程对象Thread启动之后,没有任何引用引用这个Thread对象,是否会被GC回收掉
- 【C/C++开发】C++ Thread对象封装
- Thread类的sleep()方法和对象的wait()方法都可以让线程暂停执行,它们有什么区别?
- 实现线程的封装, 2种方式(面向对象,基于对象)
- Android线程封装基类Thread