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[PATCH] fdatasync: minor improvements
From: |
Eric Blake |
Subject: |
[PATCH] fdatasync: minor improvements |
Date: |
Fri, 16 Sep 2011 12:48:03 -0600 |
Picks up some ideas by Paul Eggert from here:
https://lists.gnu.org/archive/html/bug-coreutils/2011-07/msg00157.html
* modules/fdatasync (Depends-on): Add condition for fsync.
* lib/fdatasync.c (fdatasync): Add comment.
* tests/test-unistd-c++.cc: Test fdatasync.
Signed-off-by: Eric Blake <address@hidden>
---
ChangeLog | 5 +++++
lib/fdatasync.c | 2 ++
modules/fdatasync | 2 +-
tests/test-unistd-c++.cc | 4 ++++
4 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index c76f3ae..7783d07 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2011-09-16 Eric Blake <address@hidden>
+ fdatasync: minor improvements
+ * modules/fdatasync (Depends-on): Add condition for fsync.
+ * lib/fdatasync.c (fdatasync): Add comment.
+ * tests/test-unistd-c++.cc: Test fdatasync.
+
unistd: update refs to newer POSIX
* lib/unistd.in.h: Prefer POSIX 2008 over 2001.
Suggested by Bruno Haible.
diff --git a/lib/fdatasync.c b/lib/fdatasync.c
index 54c10fd..3d26793 100644
--- a/lib/fdatasync.c
+++ b/lib/fdatasync.c
@@ -21,5 +21,7 @@
int
fdatasync (int fd)
{
+ /* This does more work than strictly necessary, but is the best we
+ can do portably. */
return fsync (fd);
}
diff --git a/modules/fdatasync b/modules/fdatasync
index 7b78a80..19c1aee 100644
--- a/modules/fdatasync
+++ b/modules/fdatasync
@@ -6,7 +6,7 @@ lib/fdatasync.c
m4/fdatasync.m4
Depends-on:
-fsync
+fsync [test $HAVE_FDATASYNC = 0]
unistd
configure.ac:
diff --git a/tests/test-unistd-c++.cc b/tests/test-unistd-c++.cc
index 12e415b..fb7425b 100644
--- a/tests/test-unistd-c++.cc
+++ b/tests/test-unistd-c++.cc
@@ -60,6 +60,10 @@ SIGNATURE_CHECK (GNULIB_NAMESPACE::fchownat, int,
(int, char const *, uid_t, gid_t, int));
#endif
+#if GNULIB_TEST_FDATASYNC
+SIGNATURE_CHECK (GNULIB_NAMESPACE::fdatasync, int, (int));
+#endif
+
#if GNULIB_TEST_FSYNC
SIGNATURE_CHECK (GNULIB_NAMESPACE::fsync, int, (int));
#endif
--
1.7.4.4
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