72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2020 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*\
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* [Description]
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*
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* Test for a SHM_LOCK and SHM_UNLOCK.
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include "tst_test.h"
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#include "tst_safe_sysv_ipc.h"
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#include "libnewipc.h"
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#define SHM_SIZE 2048
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static int shm_id = -1;
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static void verify_shmlock(void)
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{
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struct shmid_ds ds;
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TEST(shmctl(shm_id, SHM_LOCK, NULL));
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if (TST_RET != 0)
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tst_res(TFAIL | TTERRNO, "shmctl(%i, SHM_LOCK, NULL)", shm_id);
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else
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tst_res(TPASS, "shmctl(%i, SHM_LOCK, NULL)", shm_id);
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SAFE_SHMCTL(shm_id, IPC_STAT, &ds);
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if (ds.shm_perm.mode & SHM_LOCKED)
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tst_res(TPASS, "SMH_LOCKED bit is on in shm_perm.mode");
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else
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tst_res(TFAIL, "SHM_LOCKED bit is off in shm_perm.mode");
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TEST(shmctl(shm_id, SHM_UNLOCK, NULL));
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if (TST_RET != 0)
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tst_res(TFAIL | TTERRNO, "shmctl(%i, SHM_UNLOCK, NULL)", shm_id);
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else
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tst_res(TPASS, "shmctl(%i, SHM_UNLOCK, NULL)", shm_id);
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SAFE_SHMCTL(shm_id, IPC_STAT, &ds);
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if (ds.shm_perm.mode & SHM_LOCKED)
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tst_res(TFAIL, "SMH_LOCKED bit is on in shm_perm.mode");
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else
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tst_res(TPASS, "SHM_LOCKED bit is off in shm_perm.mode");
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}
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static void setup(void)
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{
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shm_id = SAFE_SHMGET(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | SHM_RW);
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}
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static void cleanup(void)
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{
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if (shm_id >= 0)
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SAFE_SHMCTL(shm_id, IPC_RMID, NULL);
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}
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static struct tst_test test = {
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.setup = setup,
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.cleanup = cleanup,
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.test_all = verify_shmlock,
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};
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