Dmitry V. Levin
efb134041e
* tests/ipc_sem.c (cleanup): New function. (main): Use it and perror_msg_and_skip.
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/*
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* Copyright (c) 2015 Andreas Schwab <schwab@suse.de>
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/sem.h>
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union semun {
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int val; /* Value for SETVAL */
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struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */
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unsigned short *array; /* Array for GETALL, SETALL */
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struct seminfo *__buf; /* Buffer for IPC_INFO
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(Linux-specific) */
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};
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static int id = -1;
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static void
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cleanup(void)
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{
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semctl(id, 0, IPC_RMID, 0);
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printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_RMID, \\[?0\\]?\\) += 0\n", id);
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id = -1;
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}
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int
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main(void)
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{
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int rc;
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union semun un;
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struct semid_ds ds;
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struct seminfo info;
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id = semget(IPC_PRIVATE, 1, 0600);
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if (id < 0)
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perror_msg_and_skip("semget");
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printf("semget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
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atexit(cleanup);
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un.buf = &ds;
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if (semctl(id, 0, IPC_STAT, un))
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perror_msg_and_skip("semctl IPC_STAT");
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printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_STAT, \\[?%p\\]?\\) += 0\n",
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id, &ds);
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un.__buf = &info;
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int max = semctl(0, 0, SEM_INFO, un);
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if (max < 0)
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perror_msg_and_skip("semctl SEM_INFO");
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printf("semctl\\(0, 0, (IPC_64\\|)?SEM_INFO, \\[?%p\\]?\\) += %d\n",
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&info, max);
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un.buf = &ds;
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rc = semctl(id, 0, SEM_STAT, un);
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if (rc != id) {
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/*
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* In linux < v2.6.24-rc1 the first argument must be
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* an index in the kernel's internal array.
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*/
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if (-1 != rc || EINVAL != errno)
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perror_msg_and_skip("semctl SEM_STAT");
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printf("semctl\\(%d, 0, (IPC_64\\|)?SEM_STAT, \\[?%p\\]?\\)"
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" += -1 EINVAL \\(%m\\)\n", id, &ds);
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} else {
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printf("semctl\\(%d, 0, (IPC_64\\|)?SEM_STAT, \\[?%p\\]?\\)"
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" += %d\n", id, &ds, id);
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}
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return 0;
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}
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