/* * File: semaphore2.c * * * -------------------------------------------------------------------------- * * Pthreads-win32 - POSIX Threads Library for Win32 * Copyright(C) 1998 John E. Bossom * Copyright(C) 1999,2005 Pthreads-win32 contributors * * Contact Email: rpj@callisto.canberra.edu.au * * The current list of contributors is contained * in the file CONTRIBUTORS included with the source * code distribution. The list can also be seen at the * following World Wide Web location: * http://sources.redhat.com/pthreads-win32/contributors.html * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library in the file COPYING.LIB; * if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * * -------------------------------------------------------------------------- * * Test Synopsis: Verify sem_getvalue returns the correct value. * - * * Test Method (Validation or Falsification): * - Validation * * Requirements Tested: * - * * Features Tested: * - * * Cases Tested: * - * * Description: * - * * Environment: * - * * Input: * - None. * * Output: * - File name, Line number, and failed expression on failure. * - No output on success. * * Assumptions: * - * * Pass Criteria: * - Process returns zero exit status. * * Fail Criteria: * - Process returns non-zero exit status. */ #include "test.h" #define MAX_COUNT 100 int main() { sem_t s; int value = 0; int i; assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, MAX_COUNT) == 0); assert(sem_getvalue(&s, &value) == 0); assert(value == MAX_COUNT); // printf("Value = %ld\n", value); for (i = MAX_COUNT - 1; i >= 0; i--) { assert(sem_wait(&s) == 0); assert(sem_getvalue(&s, &value) == 0); // printf("Value = %ld\n", value); assert(value == i); } for (i = 1; i <= MAX_COUNT; i++) { assert(sem_post(&s) == 0); assert(sem_getvalue(&s, &value) == 0); // printf("Value = %ld\n", value); assert(value == i); } return 0; }