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[gnulib.git] / tests / test-stat-time.c

diff --git a/tests/test-stat-time.c b/tests/test-stat-time.c
index 77b99a4..c39aa00 100644 (file)
--- a/tests/test-stat-time.c
+++ b/tests/test-stat-time.c
@@ -1,5 +1,5 @@
 /* Test of <stat-time.h>.
-   Copyright (C) 2007-2009 Free Software Foundation, Inc.
+   Copyright (C) 2007-2014 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
@@ -22,32 +22,23 @@
 
 #include <fcntl.h>
 #include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
+#include "macros.h"
+
+#define BASE "test-stat-time.t"
+#include "nap.h"
 
 enum { NFILES = 4 };
 
-static void
+static int
 force_unlink (const char *filename)
 {
   /* This chmod is necessary on mingw, where unlink() of a read-only file
      fails with EPERM.  */
   chmod (filename, 0600);
-  unlink (filename);
+  return unlink (filename);
 }
 
 static void
@@ -91,38 +82,6 @@ do_stat (const char *filename, struct stat *p)
   ASSERT (stat (filename, p) == 0);
 }
 
-/* Sleep long enough to notice a timestamp difference on the file
-   system in the current directory.  */
-static void
-nap (void)
-{
-#if !HAVE_USLEEP
-  /* Assume the worst case file system of FAT, which has a granularity
-     of 2 seconds.  */
-  sleep (2);
-#else /* HAVE_USLEEP */
-  static long delay;
-  if (!delay)
-    {
-      /* Initialize only once, by sleeping for 1 millisecond.  If that
-         was enough to observe a difference, then we are set;
-         otherwise fall back to 2 seconds.  */
-      struct stat st1;
-      struct stat st2;
-      ASSERT (stat ("t-stt-stamp1", &st1) == 0);
-      ASSERT (unlink ("t-stt-stamp1") == 0);
-      usleep (delay = 1000);
-      create_file ("t-stt-stamp1");
-      ASSERT (stat ("t-stt-stamp1", &st2) == 0);
-      if (! (st1.st_mtime < st2.st_mtime
-             || (st1.st_mtime == st2.st_mtime
-                 && get_stat_mtime_ns (&st1) < get_stat_mtime_ns (&st2))))
-        delay = 2000000;
-    }
-  usleep (delay);
-#endif /* HAVE_USLEEP */
-}
-
 static void
 prepare_test (struct stat *statinfo, struct timespec *modtimes)
 {
@@ -186,10 +145,21 @@ test_mtime (const struct stat *statinfo, struct timespec *modtimes)
     }
 }
 
-#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
+#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+/* Skip the ctime tests on native Windows platforms, because their
+   st_ctime is either the same as st_mtime (plus or minus an offset)
+   or set to the file _creation_ time, and is not influenced by rename
+   or chmod.  */
+# define test_ctime(ignored) ((void) 0)
+#else
 static void
 test_ctime (const struct stat *statinfo)
 {
+  /* On some buggy NFS clients, mtime and ctime are disproportionately
+     skewed from one another.  Skip this test in that case.  */
+  if (statinfo[0].st_mtime != statinfo[0].st_ctime)
+    return;
+
   /* mtime(stamp2) < ctime(renamed) */
   ASSERT (statinfo[2].st_mtime < statinfo[1].st_ctime
           || (statinfo[2].st_mtime == statinfo[1].st_ctime
@@ -205,7 +175,7 @@ test_birthtime (const struct stat *statinfo,
 {
   int i;
 
-  /* Collect the birth times.. */
+  /* Collect the birth times.  */
   for (i = 0; i < NFILES; ++i)
     {
       birthtimes[i] = get_stat_birthtime (&statinfo[i]);
@@ -224,7 +194,7 @@ test_birthtime (const struct stat *statinfo,
 }
 
 int
-main ()
+main (void)
 {
   struct stat statinfo[NFILES];
   struct timespec modtimes[NFILES];
@@ -246,12 +216,7 @@ main ()
   cleanup (0);
   prepare_test (statinfo, modtimes);
   test_mtime (statinfo, modtimes);
-  /* Skip the ctime tests on native Windows platforms, because there st_ctime
-     is either the same as st_mtime (plus or minus an offset) or set to the
-     file _creation_ time, and is not influenced by rename or chmod.  */
-#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
   test_ctime (statinfo);
-#endif
   test_birthtime (statinfo, modtimes, birthtimes);
 
   cleanup (0);