84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*
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* DESCRIPTION
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* test that msgsnd() enqueues a message correctly.
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*/
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.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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static key_t msgkey;
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static int queue_id = -1, pid;
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static struct buf {
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long type;
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char text[MSGSIZE];
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} rcv_buf, snd_buf = {MSGTYPE, "hello"};
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static void verify_msgsnd(void)
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{
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struct msqid_ds qs_buf;
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time_t before_snd, after_snd;
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before_snd = get_ipc_timestamp();
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TEST(msgsnd(queue_id, &snd_buf, MSGSIZE, 0));
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if (TST_RET == -1) {
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tst_res(TFAIL | TTERRNO, "msgsnd() failed");
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return;
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}
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after_snd = get_ipc_timestamp();
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SAFE_MSGCTL(queue_id, IPC_STAT, &qs_buf);
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if (qs_buf.msg_cbytes == MSGSIZE && qs_buf.msg_qnum == 1)
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tst_res(TPASS, "queue bytes and number of queues matched");
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else
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tst_res(TFAIL, "queue bytes or number of queues mismatched");
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if (qs_buf.msg_lspid == pid)
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tst_res(TPASS, "PID of last msgsnd(2) matched");
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else
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tst_res(TFAIL, "PID of last msgsnd(2) mismatched");
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if (qs_buf.msg_stime >= before_snd && qs_buf.msg_stime <= after_snd) {
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tst_res(TPASS, "msg_stime = %lu in [%lu, %lu]",
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(unsigned long)qs_buf.msg_stime,
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(unsigned long)before_snd, (unsigned long)after_snd);
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} else {
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tst_res(TFAIL, "msg_stime = %lu out of [%lu, %lu]",
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(unsigned long)qs_buf.msg_stime,
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(unsigned long)before_snd, (unsigned long)after_snd);
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}
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SAFE_MSGRCV(queue_id, &rcv_buf, MSGSIZE, 1, 0);
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}
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static void setup(void)
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{
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msgkey = GETIPCKEY();
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queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
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pid = getpid();
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}
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static void cleanup(void)
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{
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if (queue_id != -1)
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SAFE_MSGCTL(queue_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_msgsnd,
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.needs_tmpdir = 1
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};
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