| /* Common posix_fadvise tests definitions. |
| 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/>. */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| #include <support/support.h> |
| #include <support/check.h> |
| #include <support/temp_file.h> |
| |
| static char *temp_filename; |
| static int temp_fd; |
| static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX"; |
| static int fifofd; |
| |
| static void |
| do_prepare (int argc, char **argv) |
| { |
| temp_fd = create_temp_file ("tst-posix_fadvise.", &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"); |
| } |
| |
| /* Effectivelly testing posix_fadvise is hard because side effects are not |
| observed without checking either performance or any kernel specific |
| supplied information. Also, the syscall is meant to be an advisory, |
| so the kernel is free to use this information in any way it deems fit, |
| including ignoring it. |
| |
| This test check for some invalid returned operation to check argument |
| passing and if implementation follows POSIX error definition. */ |
| static int |
| do_test_common (void) |
| { |
| /* Add some data to file and ensure it is written to disk. */ |
| #define BLK_SIZE 2048 |
| char buffer[BLK_SIZE] = { 0xcd }; |
| ssize_t ret; |
| |
| if ((ret = write (temp_fd, buffer, BLK_SIZE)) != BLK_SIZE) |
| FAIL_EXIT1 ("write returned %zd different than expected %d", |
| ret, BLK_SIZE); |
| |
| if (fsync (temp_fd) != 0) |
| FAIL_EXIT1 ("fsync failed"); |
| |
| /* Test passing an invalid fd. */ |
| if (posix_fadvise (-1, 0, 0, POSIX_FADV_NORMAL) != EBADF) |
| FAIL_EXIT1 ("posix_fadvise with invalid fd did not return EBADF"); |
| |
| /* Test passing an invalid operation. */ |
| if (posix_fadvise (temp_fd, 0, 0, -1) != EINVAL) |
| FAIL_EXIT1 ("posix_fadvise with invalid advise did not return EINVAL"); |
| |
| /* Test passing a FIFO fd. */ |
| if (posix_fadvise (fifofd, 0, 0, POSIX_FADV_NORMAL) != ESPIPE) |
| FAIL_EXIT1 ("posix_advise with PIPE fd did not return ESPIPE"); |
| |
| /* Default fadvise on all file starting at initial position. */ |
| if (posix_fadvise (temp_fd, 0, 0, POSIX_FADV_NORMAL) != 0) |
| FAIL_EXIT1 ("default posix_fadvise failed"); |
| |
| if (posix_fadvise (temp_fd, 0, 2 * BLK_SIZE, POSIX_FADV_NORMAL) != 0) |
| FAIL_EXIT1 ("posix_fadvise failed (offset = 0, len = %d) failed", |
| BLK_SIZE); |
| |
| if (posix_fadvise (temp_fd, 2 * BLK_SIZE, 0, POSIX_FADV_NORMAL) != 0) |
| FAIL_EXIT1 ("posix_fadvise failed (offset = %d, len = 0) failed", |
| BLK_SIZE); |
| |
| return 0; |
| } |
| |
| #define PREPARE do_prepare |
| |
| /* This function is defined by the individual tests. */ |
| static int do_test (void); |
| |
| #include <support/test-driver.c> |