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96b7fe42 | 1 | /* Common posix_fadvise tests definitions. |
04277e02 | 2 | Copyright (C) 2016-2019 Free Software Foundation, Inc. |
96b7fe42 AZ |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
c23de0aa | 19 | #include <errno.h> |
96b7fe42 | 20 | #include <fcntl.h> |
c23de0aa | 21 | #include <limits.h> |
ceaa9889 | 22 | #include <stdint.h> |
c23de0aa | 23 | #include <stdlib.h> |
96b7fe42 AZ |
24 | #include <sys/types.h> |
25 | #include <sys/stat.h> | |
26 | #include <unistd.h> | |
27 | ||
c23de0aa FW |
28 | #include <support/support.h> |
29 | #include <support/check.h> | |
30 | #include <support/temp_file.h> | |
96b7fe42 AZ |
31 | |
32 | static char *temp_filename; | |
33 | static int temp_fd; | |
34 | static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX"; | |
35 | static int fifofd; | |
36 | ||
37 | static void | |
c23de0aa | 38 | do_prepare (int argc, char **argv) |
96b7fe42 AZ |
39 | { |
40 | temp_fd = create_temp_file ("tst-posix_fadvise.", &temp_filename); | |
41 | if (temp_fd == -1) | |
42 | FAIL_EXIT1 ("cannot create temporary file: %m"); | |
43 | ||
44 | if (mktemp (fifoname) == NULL) | |
45 | FAIL_EXIT1 ("cannot generate temp file name: %m"); | |
46 | add_temp_file (fifoname); | |
47 | ||
48 | if (mkfifo (fifoname, S_IWUSR | S_IRUSR) != 0) | |
49 | FAIL_EXIT1 ("cannot create fifo: %m"); | |
50 | ||
51 | fifofd = open (fifoname, O_RDONLY | O_NONBLOCK); | |
52 | if (fifofd == -1) | |
53 | FAIL_EXIT1 ("cannot open fifo: %m"); | |
54 | } | |
55 | ||
56 | /* Effectivelly testing posix_fadvise is hard because side effects are not | |
57 | observed without checking either performance or any kernel specific | |
58 | supplied information. Also, the syscall is meant to be an advisory, | |
59 | so the kernel is free to use this information in any way it deems fit, | |
60 | including ignoring it. | |
61 | ||
62 | This test check for some invalid returned operation to check argument | |
63 | passing and if implementation follows POSIX error definition. */ | |
64 | static int | |
65 | do_test_common (void) | |
66 | { | |
67 | /* Add some data to file and ensure it is written to disk. */ | |
68 | #define BLK_SIZE 2048 | |
69 | char buffer[BLK_SIZE] = { 0xcd }; | |
70 | ssize_t ret; | |
71 | ||
72 | if ((ret = write (temp_fd, buffer, BLK_SIZE)) != BLK_SIZE) | |
73 | FAIL_EXIT1 ("write returned %zd different than expected %d", | |
74 | ret, BLK_SIZE); | |
75 | ||
76 | if (fsync (temp_fd) != 0) | |
77 | FAIL_EXIT1 ("fsync failed"); | |
78 | ||
79 | /* Test passing an invalid fd. */ | |
80 | if (posix_fadvise (-1, 0, 0, POSIX_FADV_NORMAL) != EBADF) | |
81 | FAIL_EXIT1 ("posix_fadvise with invalid fd did not return EBADF"); | |
82 | ||
83 | /* Test passing an invalid operation. */ | |
84 | if (posix_fadvise (temp_fd, 0, 0, -1) != EINVAL) | |
85 | FAIL_EXIT1 ("posix_fadvise with invalid advise did not return EINVAL"); | |
86 | ||
87 | /* Test passing a FIFO fd. */ | |
88 | if (posix_fadvise (fifofd, 0, 0, POSIX_FADV_NORMAL) != ESPIPE) | |
89 | FAIL_EXIT1 ("posix_advise with PIPE fd did not return ESPIPE"); | |
90 | ||
91 | /* Default fadvise on all file starting at initial position. */ | |
92 | if (posix_fadvise (temp_fd, 0, 0, POSIX_FADV_NORMAL) != 0) | |
93 | FAIL_EXIT1 ("default posix_fadvise failed"); | |
94 | ||
95 | if (posix_fadvise (temp_fd, 0, 2 * BLK_SIZE, POSIX_FADV_NORMAL) != 0) | |
96 | FAIL_EXIT1 ("posix_fadvise failed (offset = 0, len = %d) failed", | |
97 | BLK_SIZE); | |
98 | ||
99 | if (posix_fadvise (temp_fd, 2 * BLK_SIZE, 0, POSIX_FADV_NORMAL) != 0) | |
100 | FAIL_EXIT1 ("posix_fadvise failed (offset = %d, len = 0) failed", | |
101 | BLK_SIZE); | |
102 | ||
103 | return 0; | |
104 | } | |
c23de0aa FW |
105 | |
106 | #define PREPARE do_prepare | |
107 | ||
108 | /* This function is defined by the individual tests. */ | |
109 | static int do_test (void); | |
110 | ||
111 | #include <support/test-driver.c> |