X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-fsync.c;h=d21d3615256b1704dfeb12d5d5f842dad43e70ed;hb=23eecb48e39afd0d267d64d40ba6bf97aa865e13;hp=4766eb06ac98e68ef758285fd0bcfeaf7376d43f;hpb=3e2d7ac6c75ad7c92d25f59d11bd455d37ba4e37;p=gnulib.git

diff --git a/tests/test-fsync.c b/tests/test-fsync.c
index 4766eb06a..d21d36152 100644
--- a/tests/test-fsync.c
+++ b/tests/test-fsync.c
@@ -1,9 +1,9 @@
 /* Test of fsync() function.
-   Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,21 +18,13 @@
 
 #include <unistd.h>
 
+#include "signature.h"
+SIGNATURE_CHECK (fsync, int, (int));
+
 #include <errno.h>
-#include <stdio.h>
 #include <fcntl.h>
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
+#include "macros.h"
 
 int
 main (void)
@@ -40,13 +32,48 @@ main (void)
   int fd;
   const char *file = "test-fsync.txt";
 
-  if (fsync (0) != 0)
-    ASSERT (errno == EINVAL);
+  /* 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)
+      {
+        ASSERT (errno == EINVAL /* POSIX */
+                || errno == ENOTSUP /* seen on Mac OS X 10.5 */
+                || errno == EBADF /* seen on AIX 7.1 */
+                || errno == EIO /* seen on mingw */
+                );
+      }
+
+  /* fsync must fail on invalid fd.  */
+  {
+    errno = 0;
+    ASSERT (fsync (-1) == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (fsync (99) == -1);
+    ASSERT (errno == EBADF);
+  }
+
   fd = open (file, O_WRONLY|O_CREAT|O_TRUNC, 0644);
   ASSERT (0 <= fd);
   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;