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I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
139 lines
4.7 KiB
C
139 lines
4.7 KiB
C
/* Test POSIX lock on an open file (lockf).
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Copyright (C) 2019-2021 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <unistd.h>
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#include <stdint.h>
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#include <errno.h>
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#include <stdio.h>
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#include <support/temp_file.h>
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#include <support/capture_subprocess.h>
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#include <support/check.h>
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static char *temp_filename;
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static int temp_fd;
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static void
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do_prepare (int argc, char **argv)
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{
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temp_fd = create_temp_file ("tst-lockfd.", &temp_filename);
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TEST_VERIFY_EXIT (temp_fd != -1);
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}
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#define PREPARE do_prepare
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static void
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do_test_child_lockf (void *closure)
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{
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/* Check if parent has [0, 1024) locked. */
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TEST_COMPARE (lseek (temp_fd, 0, SEEK_SET), 0);
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TEST_COMPARE (lockf (temp_fd, F_TLOCK, 1024), -1);
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TEST_COMPARE (errno, EAGAIN);
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TEST_COMPARE (lockf (temp_fd, F_TEST, 1024), -1);
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TEST_COMPARE (errno, EACCES);
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/* Also Check if parent has last 1024 bytes locked. */
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TEST_COMPARE (lseek (temp_fd, INT32_MAX-1024, SEEK_SET), INT32_MAX-1024);
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TEST_COMPARE (lockf (temp_fd, F_TEST, 1024), -1);
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/* And try to lock [1024, 2048). */
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TEST_COMPARE (lseek (temp_fd, 1024, SEEK_SET), 1024);
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TEST_COMPARE (lockf (temp_fd, F_LOCK, 1024), 0);
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/* Check if non-LFS interface cap access to 32-bif off_t. */
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TEST_COMPARE (lseek64 (temp_fd, (off64_t)INT32_MAX, SEEK_SET),
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(off64_t)INT32_MAX);
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TEST_COMPARE (lockf64 (temp_fd, F_TEST, 1024), 0);
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}
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static void
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do_test_child_lockf64 (void *closure)
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{
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/* Check if parent has [0, 1024) locked. */
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TEST_COMPARE (lseek64 (temp_fd, 0, SEEK_SET), 0);
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TEST_COMPARE (lockf64 (temp_fd, F_TLOCK, 1024), -1);
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TEST_COMPARE (errno, EAGAIN);
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TEST_COMPARE (lockf64 (temp_fd, F_TEST, 1024), -1);
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TEST_COMPARE (errno, EACCES);
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/* Also Check if parent has last 1024 bytes locked. */
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TEST_COMPARE (lseek64 (temp_fd, INT32_MAX-1024, SEEK_SET), INT32_MAX-1024);
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TEST_COMPARE (lockf64 (temp_fd, F_TEST, 1024), -1);
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/* And try to lock [1024, 2048). */
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TEST_COMPARE (lseek64 (temp_fd, 1024, SEEK_SET), 1024);
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TEST_COMPARE (lockf64 (temp_fd, F_LOCK, 1024), 0);
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/* And also [INT32_MAX, INT32_MAX+1024). */
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{
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off64_t off = (off64_t)INT32_MAX;
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TEST_COMPARE (lseek64 (temp_fd, off, SEEK_SET), off);
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TEST_COMPARE (lockf64 (temp_fd, F_LOCK, 1024), 0);
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}
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/* Check if [INT32_MAX+1024, INT64_MAX) is locked. */
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{
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off64_t off = (off64_t)INT32_MAX+1024;
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TEST_COMPARE (lseek64 (temp_fd, off, SEEK_SET), off);
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TEST_COMPARE (lockf64 (temp_fd, F_TLOCK, 1024), -1);
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TEST_COMPARE (errno, EAGAIN);
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TEST_COMPARE (lockf64 (temp_fd, F_TEST, 1024), -1);
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TEST_COMPARE (errno, EACCES);
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}
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}
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static int
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do_test (void)
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{
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/* Basic tests to check if a lock can be obtained and checked. */
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TEST_COMPARE (lockf (temp_fd, F_LOCK, 1024), 0);
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TEST_COMPARE (lockf (temp_fd, F_LOCK, INT32_MAX), 0);
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TEST_COMPARE (lockf (temp_fd, F_TLOCK, 1024), 0);
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TEST_COMPARE (lockf (temp_fd, F_TEST, 1024), 0);
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TEST_COMPARE (lseek (temp_fd, 1024, SEEK_SET), 1024);
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TEST_COMPARE (lockf (temp_fd, F_ULOCK, 1024), 0);
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/* Parent process should have ([0, 1024), [2048, INT32_MAX)) ranges locked. */
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{
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struct support_capture_subprocess result;
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result = support_capture_subprocess (do_test_child_lockf, NULL);
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support_capture_subprocess_check (&result, "lockf", 0, sc_allow_none);
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}
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if (sizeof (off_t) != sizeof (off64_t))
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{
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/* Check if previously locked regions with LFS symbol. */
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TEST_COMPARE (lseek (temp_fd, 0, SEEK_SET), 0);
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TEST_COMPARE (lockf64 (temp_fd, F_LOCK, 1024), 0);
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TEST_COMPARE (lockf64 (temp_fd, F_TLOCK, 1024), 0);
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TEST_COMPARE (lockf64 (temp_fd, F_TEST, 1024), 0);
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/* Lock region [INT32_MAX+1024, INT64_MAX). */
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off64_t off = (off64_t)INT32_MAX + 1024;
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TEST_COMPARE (lseek64 (temp_fd, off, SEEK_SET), off);
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TEST_COMPARE (lockf64 (temp_fd, F_LOCK, 1024), 0);
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/* Parent process should have ([0, 1024), [2048, INT32_MAX),
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[INT32_MAX+1024, INT64_MAX)) ranges locked. */
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{
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struct support_capture_subprocess result;
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result = support_capture_subprocess (do_test_child_lockf64, NULL);
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support_capture_subprocess_check (&result, "lockf", 0, sc_allow_none);
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}
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}
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return 0;
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}
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#include <support/test-driver.c>
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