e9e912d334
For !__ASSUME_TIME64_SYSCALLS there is no need to issue a 64-bit syscall if the provided timeout fits in a 32-bit one. The 64-bit usage should be rare since the timeout is a relative one. Checked on i686-linux-gnu on a 4.15 kernel and on a 5.11 kernel (with and without --enable-kernel=5.1) and on x86_64-linux-gnu. Reviewed-by: Lukasz Majewski <lukma@denx.de>
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* Check for large timeout with mq_timedsend and mq_timedreceive.
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Copyright (C) 2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <intprops.h>
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#include <mqueue.h>
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#include <stdio.h>
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#include <support/check.h>
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#include <support/support.h>
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#include <support/temp_file.h>
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#include <unistd.h>
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static char name[sizeof "/tst-mqueue2-" + INT_BUFSIZE_BOUND (pid_t)];
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static void
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do_cleanup (void)
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{
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mq_unlink (name);
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}
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#define CLEANUP_HANDLER do_cleanup
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static int
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do_test (void)
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{
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snprintf (name, sizeof (name), "/tst-mqueue2-%u", getpid ());
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char msg[8] = { 0x55 };
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struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = sizeof (msg) };
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mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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TEST_VERIFY_EXIT (q != (mqd_t) -1);
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struct timespec ts = { TYPE_MAXIMUM (time_t), 0 };
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{
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timer_t timer = support_create_timer (0, 100000000, false, NULL);
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TEST_COMPARE (mq_timedreceive (q, msg, sizeof (msg), NULL, &ts), -1);
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TEST_VERIFY (errno == EINTR || errno == EOVERFLOW);
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support_delete_timer (timer);
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}
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mq_unlink (name);
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return 0;
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}
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#include <support/test-driver.c>
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