#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <pthread.h>

#include <unistd.h>

#include <sys/types.h>

typedef pthread_t pt_t;

typedef unsigned int uint_t;

pt_t main_td;

void print_ids(const char* str)

{

pid_t pid; //process

pt_t tid; // thread

pid = getpid();

tid = pthread_self();

printf("%s pid: %u tid: %u (0x%x)\n", str, (unsigned int)pid, (unsigned int) tid, (unsigned int)tid);

}

void func(void *arg)

{

print_ids("new thread: ");

return ((void*) 0);

}

int main()

{

int err = pthread_create(&main_td, NULL, func, NULL);

if (err != 0)

{

printf("create thread error : %s\n", strerror(err));

return 1;

}

printf("main thread: pid: %u tid: %u (0x%x)\n",

(uint_t)getpid(), (uint_t)pthread_self(), (uint_t)pthread_self());

print_ids("main thread:");

sleep(1);

return 0;

}