mybooksources/Chapter03/code/linuxtid.cpp

#include <sys/syscall.h>
#include <unistd.h>
#include <stdio.h>
#include <pthread.h>

void* thread_proc(void* arg)
{
	pthread_t* tid1 = (pthread_t*)arg;
	int tid2 = syscall(SYS_gettid);
	pthread_t tid3 = pthread_self();
	
	while(true)
	{
		printf("tid1: %ld, tid2: %ld, tid3: %ld\n", *tid1, tid2, tid3);
		sleep(1);
	}
	
}

int main()
{	
	pthread_t tid;
	pthread_create(&tid, NULL, thread_proc, &tid);
	
	pthread_join(tid, NULL);
	
	return 0;
}