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Diffstat (limited to 'pthreads/tests/semaphore1.c')
-rw-r--r-- | pthreads/tests/semaphore1.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/pthreads/tests/semaphore1.c b/pthreads/tests/semaphore1.c new file mode 100644 index 000000000..f89a43081 --- /dev/null +++ b/pthreads/tests/semaphore1.c @@ -0,0 +1,161 @@ +/* + * File: semaphore1.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 trywait() returns -1 and sets EAGAIN. + * - + * + * 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" + +void * +thr(void * arg) +{ + sem_t s; + int result; + + assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0); + + assert((result = sem_trywait(&s)) == -1); + + if ( result == -1 ) + { + int err = errno; + printf("thread: sem_trywait 1: expecting error %s: got %s\n", + error_string[EAGAIN], error_string[err]); fflush(stdout); + assert(err == EAGAIN); + } + else + { + printf("thread: ok 1\n"); + } + + assert((result = sem_post(&s)) == 0); + + assert((result = sem_trywait(&s)) == 0); + + if ( result == -1 ) + { + perror("thread: sem_trywait 2"); + } + else + { + printf("thread: ok 2\n"); + } + + assert(sem_post(&s) == 0); + + return 0; +} + + +int +main() +{ + pthread_t t; + sem_t s; + int result; + + assert(pthread_create(&t, NULL, thr, NULL) == 0); + assert(pthread_join(t, (void **)&result) == 0); + assert(result == 0); + + assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0); + + assert((result = sem_trywait(&s)) == -1); + + if ( result == -1 ) + { + int err = errno; + printf("main: sem_trywait 1: expecting error %s: got %s\n", + error_string[EAGAIN], error_string[err]); fflush(stdout); + assert(err == EAGAIN); + } + else + { + printf("main: ok 1\n"); + } + + assert((result = sem_post(&s)) == 0); + + assert((result = sem_trywait(&s)) == 0); + + if ( result == -1 ) + { + perror("main: sem_trywait 2"); + } + else + { + printf("main: ok 2\n"); + } + + assert(sem_post(&s) == 0); + + return 0; +} + |