/****************************************************************************** * FILE: hello_arg1.c * DESCRIPTION: * A "hello world" Pthreads program which demonstrates one safe way * to pass arguments to threads during thread creation. * AUTHOR: Blaise Barney * LAST REVISED: 01/29/09 ******************************************************************************/ #include #include #include #define NUM_THREADS 8 char *messages[NUM_THREADS]; void *PrintHello(void *threadid) { int *id_ptr, taskid; sleep(1); id_ptr = (int *) threadid; taskid = *id_ptr; printf("Thread %d: %s\n", taskid, messages[taskid]); pthread_exit(NULL); } int main(int argc, char *argv[]) { pthread_t threads[NUM_THREADS]; int *taskids[NUM_THREADS]; int rc, t; messages[0] = "English: Hello World!"; messages[1] = "French: Bonjour, le monde!"; messages[2] = "Spanish: Hola al mundo"; messages[3] = "Klingon: Nuq neH!"; messages[4] = "German: Guten Tag, Welt!"; messages[5] = "Russian: Zdravstvytye, mir!"; messages[6] = "Japan: Sekai e konnichiwa!"; messages[7] = "Latin: Orbis, te saluto!"; for(t=0;t