// -c create semaphore // -d destroy semaphore // -l lock semaphore, sleep 10 secs, unlock #include #include "synch.h" #define KEY 0xdeadbeef main(int argc, char** argv) { if (!strcmp(argv[1], "-c")) { create_semaphore(KEY); } else if (!strcmp(argv[1], "-d")) { destroy_semaphore(KEY); } else if (!strcmp(argv[1], "-l")) { lock_semaphore(KEY); sleep(10); unlock_semaphore(KEY); } }