Mercurial > hg > octave-lyh > gnulib-hg
changeset 15632:c96b3b10e579
test-fsync: yet another enhancement
* tests/test-fsync.c (main): Also test behavior on read-only text
file.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Fri, 16 Sep 2011 17:15:39 -0600 |
parents | 76e03c88266c |
children | c2c292001fc0 |
files | ChangeLog tests/test-fsync.c |
diffstat | 2 files changed, 21 insertions(+), 0 deletions(-) [+] |
line wrap: on
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2011-09-16 Eric Blake <eblake@redhat.com> + + test-fsync: yet another enhancement + * tests/test-fsync.c (main): Also test behavior on read-only text + file. + 2011-09-16 Bruno Haible <bruno@clisp.org> Enhance fsync, fdatasync tests.
--- a/tests/test-fsync.c +++ b/tests/test-fsync.c @@ -32,6 +32,8 @@ int fd; const char *file = "test-fsync.txt"; + /* Assuming stdin and stdout are ttys, fsync is allowed to fail, but + may succeed as an extension. */ for (fd = 0; fd < 2; fd++) if (fsync (fd) != 0) { @@ -41,6 +43,7 @@ ); } + /* fsync must fail on invalid fd. */ errno = 0; ASSERT (fsync (-1) == -1); ASSERT (errno == EBADF); @@ -50,6 +53,18 @@ ASSERT (write (fd, "hello", 5) == 5); ASSERT (fsync (fd) == 0); ASSERT (close (fd) == 0); + + /* For a read-only regular file input file descriptor, fsync should + succeed (since at least atime changes can be synchronized). */ + fd = open (file, O_RDONLY); + ASSERT (0 <= fd); + { + char buf[1]; + ASSERT (read (fd, buf, sizeof buf) == sizeof buf); + } + ASSERT (fsync (fd) == 0); + ASSERT (close (fd) == 0); + ASSERT (unlink (file) == 0); return 0;