Mercurial > hg > octave-shane > gnulib-hg
annotate tests/test-fsync.c @ 17632:86af85d364e1 default tip
unistd: port readlink to Mac OS X 10.3.9
* lib/unistd.in.h (_GL_INCLUDING_UNISTD_H): New macro, to work
around self-include problem in Mac OS X 10.3.9 when combined with
readlink module. Problem reported by Klaus Zietler in
<http://bugs.gnu.org/16825>.
| author | Paul Eggert <eggert@penguin.cs.ucla.edu> |
|---|---|
| date | Tue, 25 Feb 2014 11:16:27 -0800 |
| parents | 344018b6e5d7 |
| children |
| rev | line source |
|---|---|
| 10565 | 1 /* Test of fsync() function. |
| 17587 | 2 Copyright (C) 2008-2014 Free Software Foundation, Inc. |
| 10565 | 3 |
| 4 This program is free software: you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
|
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6 the Free Software Foundation; either version 3 of the License, or |
| 10565 | 7 (at your option) any later version. |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
| 15 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 16 | |
| 17 #include <config.h> | |
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18 |
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19 #include <unistd.h> |
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20 |
| 12489 | 21 #include "signature.h" |
| 22 SIGNATURE_CHECK (fsync, int, (int)); | |
| 23 | |
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24 #include <errno.h> |
| 10565 | 25 #include <fcntl.h> |
| 26 | |
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27 #include "macros.h" |
| 10565 | 28 |
| 29 int | |
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30 main (void) |
| 10565 | 31 { |
| 32 int fd; | |
| 33 const char *file = "test-fsync.txt"; | |
| 34 | |
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35 /* Assuming stdin and stdout are ttys, fsync is allowed to fail, but |
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36 may succeed as an extension. */ |
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37 for (fd = 0; fd < 2; fd++) |
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38 if (fsync (fd) != 0) |
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39 { |
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40 ASSERT (errno == EINVAL /* POSIX */ |
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41 || errno == ENOTSUP /* seen on Mac OS X 10.5 */ |
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42 || errno == EBADF /* seen on AIX 7.1 */ |
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43 || errno == EIO /* seen on mingw */ |
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44 ); |
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45 } |
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46 |
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47 /* fsync must fail on invalid fd. */ |
| 15689 | 48 { |
| 49 errno = 0; | |
| 50 ASSERT (fsync (-1) == -1); | |
| 51 ASSERT (errno == EBADF); | |
| 52 } | |
| 53 { | |
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54 close (99); |
| 15689 | 55 errno = 0; |
| 56 ASSERT (fsync (99) == -1); | |
| 57 ASSERT (errno == EBADF); | |
| 58 } | |
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59 |
| 10565 | 60 fd = open (file, O_WRONLY|O_CREAT|O_TRUNC, 0644); |
| 61 ASSERT (0 <= fd); | |
| 62 ASSERT (write (fd, "hello", 5) == 5); | |
| 63 ASSERT (fsync (fd) == 0); | |
| 64 ASSERT (close (fd) == 0); | |
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65 |
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66 /* For a read-only regular file input file descriptor, fsync should |
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67 succeed (since at least atime changes can be synchronized). */ |
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68 fd = open (file, O_RDONLY); |
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69 ASSERT (0 <= fd); |
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70 { |
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71 char buf[1]; |
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72 ASSERT (read (fd, buf, sizeof buf) == sizeof buf); |
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73 } |
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74 ASSERT (fsync (fd) == 0); |
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75 ASSERT (close (fd) == 0); |
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76 |
| 10565 | 77 ASSERT (unlink (file) == 0); |
| 78 | |
| 79 return 0; | |
| 80 } |