将创建线程的API-pthread_create封装成一个线程类

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之前写的多线程都是在主进程中调用线程的API，这里为每一个线程封装成一个类；创建了一个线程对象，也就是创建了一个线程；

MyThread.h

/*************************************************************************> File Name: MyThread.h> Author: > Mail: > Created Time: 2015年12月14日 星期一 16时23分17秒 ************************************************************************/#ifndef _MYTHREAD_H#define _MYTHREAD_H#include <iostream>#include <pthread.h>#include <string>using std::string;class MyThread{    public:        MyThread();        ~MyThread();        void set_name(string name);        string get_name();        pthread_t get_pid();        void run(void *(*fun)(void *), void *arg);        void join();        void do_something();//not use        friend void * thread_routine(void *arg);//not use    private:        pthread_t pid;        string thread_name;};#endif

MyThread.cpp

/*************************************************************************> File Name: MyThread.cpp> Author: > Mail: > Created Time: 2015年12月14日 星期一 16时31分43秒 ************************************************************************/#include "MyThread.h"using namespace std;MyThread::MyThread(){    }MyThread::~MyThread(){    pthread_join(pid, NULL);}void MyThread::set_name(string name){    thread_name = name;}string MyThread::get_name(){    return thread_name;}pthread_t MyThread::get_pid(){    return pid;}void MyThread::run(void *(*fun)(void *), void *arg){    pthread_create(&pid, NULL, fun, arg);}void MyThread::join(){    pthread_join(pid, NULL);}/*not use*/void MyThread::do_something(){   cout << "thread id is " << pid << ", name is " << thread_name << endl;}/*not use*/void * thread_routine(void *arg){    MyThread * pthread;    pthread = static_cast<MyThread *>(arg);    pthread->do_something();    return NULL;}

main.cpp

/*************************************************************************> File Name: main.cpp> Author: > Mail: > Created Time: 2015年12月14日 星期一 16时13分21秒 ************************************************************************/#include <cstdlib>#include <string.h>#include "MyThread.h"using namespace std;void *thread_fun(void * arg){    cout << "this is thread routine..." <<  endl;    return NULL;}int main(int argc, char *argv[]){    int i = 0, num = 0;    if (argc != 2){        cout << "input the number of thread object you want to create...." << endl;        exit(-1);    }        num = atoi(argv[1]);    MyThread thread[num];        cout << "I will create " << num << " threads." << endl;    for (i = 0; i < num; ++i){        thread[i].set_name("thread");    }    for(i = 0; i < num; ++i){        thread[i].run(thread_fun, NULL);        cout << thread[i].get_name() << " pid is " << thread[i].get_pid() <<  " is running.." << endl;    }     for(i = 0; i < num; ++i){        thread[i].join();    }         cout << "main thread exit....." << endl;    exit(0);}

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