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/*
* 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;
perror("thread: sem_trywait 1: expected error"); // No error
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;
perror("main: sem_trywait 1: expected error"); // No error
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;
}