/* ==== test_switch.c ============================================================ * Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu * * Description : Test context switch functionality. * * 1.00 93/08/04 proven * -Started coding this file. */ #include #include #include #include "test.h" const char buf[] = "abcdefghijklimnopqrstuvwxyz"; int fd = 1; void* new_thread(void* arg) { int i; for (i = 0; i < 10; i++) { write(fd, buf + (long) arg, 1); sleep(1); } return NULL; } int main() { pthread_t thread[2]; int count = sizeof thread/sizeof thread[0]; long i; printf("Going to sleep\n"); sleep(3); printf("Done sleeping\n"); for(i = 0; i < count; i++) CHECKr(pthread_create(&thread[i], NULL, new_thread, (void *) i)); for (i = 0; i < count; i++) CHECKr(pthread_join(thread[i], NULL)); SUCCEED; }