| /* Basic sync_file_range (not specific flag is checked). |
| Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* sync_file_range is only define for LFS. */ |
| #define _FILE_OFFSET_BITS 64 |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| |
| #include <support/temp_file.h> |
| #include <support/check.h> |
| |
| #define XSTR(s) STR(S) |
| #define STR(s) #s |
| |
| static char *temp_filename; |
| static int temp_fd; |
| |
| static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX"; |
| static int fifofd; |
| |
| void |
| do_prepare (int argc, char **argv) |
| { |
| temp_fd = create_temp_file ("tst-file_sync_range.", &temp_filename); |
| if (temp_fd == -1) |
| FAIL_EXIT1 ("cannot create temporary file: %m"); |
| |
| if (mktemp (fifoname) == NULL) |
| FAIL_EXIT1 ("cannot generate temp file name: %m"); |
| add_temp_file (fifoname); |
| |
| if (mkfifo (fifoname, S_IWUSR | S_IRUSR) != 0) |
| FAIL_EXIT1 ("cannot create fifo: %m"); |
| |
| fifofd = open (fifoname, O_RDONLY | O_NONBLOCK); |
| if (fifofd == -1) |
| FAIL_EXIT1 ("cannot open fifo: %m"); |
| } |
| #define PREPARE do_prepare |
| |
| static int |
| do_test (void) |
| { |
| int ret; |
| |
| /* This tests first check for some invalid usage and then check for |
| a simple usage. It does not cover for all possible issue since for |
| EIO/ENOMEM/ENOSPC would require to create very specific scenarios that |
| are outside the current test coverage (basically correct kernel argument |
| passing. */ |
| |
| /* Check for invalid file descriptor. */ |
| if ((ret = sync_file_range (-1, 0, 0, 0)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor " |
| "(returned %d, expected -1)", ret); |
| if (errno != EBADF) |
| FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to " |
| "EBADF (%d)", errno); |
| |
| if ((ret = sync_file_range (fifofd, 0, 0, 0)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor " |
| "(returned %d, expected -1)", ret); |
| if (errno != ESPIPE) |
| FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to " |
| "EBADF (%d)", errno); |
| |
| /* Check for invalid flags (it must be |
| SYNC_FILE_RANGE_{WAIT_BEFORE,WRITE,WAIT_AFTER) or a 'or' combination of |
| them. */ |
| if ((ret = sync_file_range (temp_fd, 0, 0, -1)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not failed with invalid flags " |
| "(returned %d, " "expected -1)", ret); |
| if (errno != EINVAL) |
| FAIL_EXIT1 ("sync_file_range with invalid flag did not set errno to " |
| "EINVAL (%d)", errno); |
| |
| /* Check for negative offset. */ |
| if ((ret = sync_file_range (temp_fd, -1, 1, 0)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not failed with invalid offset " |
| "(returned %d, expected -1)", ret); |
| if (errno != EINVAL) |
| FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " |
| "EINVAL (%d)", errno); |
| |
| /* offset + nbytes must be a positive value. */ |
| if ((ret = sync_file_range (temp_fd, 1024, -2048, 0)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not failed with invalid nbytes (returned %d, " |
| "expected -1)", ret); |
| if (errno != EINVAL) |
| FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " |
| "EINVAL (%d)", errno); |
| |
| /* offset + nbytes must be larger or equal than offset */ |
| if ((ret = sync_file_range (temp_fd, -1024, 1024, 0)) != -1) |
| FAIL_EXIT1 ("sync_file_range did not failed with invalid offset " |
| "(returned %d, expected -1)", ret); |
| if (errno != EINVAL) |
| FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " |
| "EINVAL (%d)", errno); |
| |
| /* Check simple successful case. */ |
| if ((ret = sync_file_range (temp_fd, 0, 1024, 0)) == -1) |
| FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno); |
| |
| /* Finally check also a successful case with a 64-bit offset. */ |
| off_t large_offset = UINT32_MAX + 2048LL; |
| if ((ret = sync_file_range (temp_fd, large_offset, 1024, 0)) == -1) |
| FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno); |
| |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |