June 16th Tuesday (六月 十六日 火曜日)

//GThread.cpp
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <pthread.h>

#include <iostream>

using namespace std;

class GThread {
private:
    pthread_t _thread;
    void * (*_routine)(void *);
    void * _arg;
public:
    GThread(void * (*start_routine)(void *), void * arg) {
        memset(&_thread, 0, sizeof(pthread_t));
        _routine = start_routine;
        _arg = arg;
    }
   
    ~GThread() {
        //pthread_detach(_thread);
        memset(&_thread, 0, sizeof(pthread_t));
        _routine = NULL;
        _arg = NULL;
    }
   
    void start() {
        if (_routine) {
            pthread_create(&_thread, NULL, _routine, _arg);
        }
    }
   
    void suspend() {
    }
   
    void resume() {
    }
};

void * test(void *arg){
    int *np = (int *)arg;
    cout<<"thread no. "<<(*np)<<endl;
   
    return NULL;
}

int main() {
    int thread_no[3] = {1, 2, 3};
   
    //for (int i = 0; i < 3; i++) {
        GThread gt(test, &thread_no[0]);
        gt.start();
    //}
   
    return 0;
}