pthread.c
/**
* pthread.c
*
* Illustrates basic use of pthreads.
*
* Compile: gcc -pthread -g -Wall -o pthread pthread.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
/* Global variable: accessible to all threads */
int num;
void *hello(void * arg);
int main(int argc, char* argv[]) {
num = 6;
pthread_t thread;
pthread_create(&thread, NULL, hello, (void *) 0);
printf("Hello from the main thread\n");
pthread_join(thread, NULL);
printf("Bye! (from the main thread)\n");
return 0;
}
void *hello(void *arg) {
printf("Hello from child thread. Num is %d.\n", num);
return NULL;
}