c++ multithread
- by chnet
I use c++ to implement a thread class. The code is in the following.
I initialize two objects, wish it will start two threads (I use pthread_self() to look the thread Id).
But the result shows that there is only one thread beside the main thread.
I am a bit confused...
class Thread {
public:
int mask;
pthread_t thread;
Thread( int );
void start();
static void * EntryPoint (void *);
void Run();
};
Thread::Thread( int a) {
mask =a;
}
void Thread::Run() {
cout<<"thread begin to run" <<endl;
cout <<" Thread Id is: "<< pthread_self() << endl; // the same thread Id.
}
void * Thread::EntryPoint(void * pthis) {
cout << "entry" <<endl;
Thread *pt = (Thread *) pthis;
pt->Run();
}
void Thread::start() {
pthread_create(&thread, NULL, EntryPoint, (void *)ThreadId );
pthread_join(thread, NULL);
}
int main() {
int input_array[8]={3,1,2,5,6,8,7,4};
Thread t1(1);
Thread t2(2);
t1.start();
t2.start()
}
