#include "api.h" #include "pal.h" #include "pal_debug.h" void helper_timeout(PAL_NUM timeout) { /* Create a binary semaphore */ PAL_HANDLE sem1 = DkMutexCreate(1); if (!sem1) { pal_printf("Failed to create a binary semaphore\n"); return; } /* Wait on the binary semaphore with a timeout */ PAL_HANDLE rv = DkObjectsWaitAny(1, &sem1, timeout); if (rv == NULL) pal_printf("Locked binary semaphore timed out (%ld).\n", timeout); else pal_printf("Acquired locked binary semaphore!?! Got back %p; sem1 is %p (%ld)\n", rv, sem1, timeout); DkObjectClose(sem1); } void helper_success(PAL_NUM timeout) { /* Create a binary semaphore */ PAL_HANDLE sem1 = DkMutexCreate(0); if (!sem1) { pal_printf("Failed to create a binary semaphore\n"); return; } /* Wait on the binary semaphore with a timeout */ PAL_HANDLE rv = DkObjectsWaitAny(1, &sem1, timeout); if (rv == sem1) pal_printf("Locked binary semaphore successfully (%ld).\n", timeout); else pal_printf("Failed to lock binary semaphore: Got back %p; sem1 is %p\n", rv, sem1); DkObjectClose(sem1); } int main(int argc, char** argv, char** envp) { helper_timeout(1000); /* Try again with timeout 0 (trylock) */ helper_timeout(0); /* Try cases that should succeed */ helper_success(NO_TIMEOUT); helper_success(0); return 0; }