Oops, fix description.

[gnulib.git] / lib / timespec.h

diff --git a/lib/timespec.h b/lib/timespec.h
index 8633461..c652577 100644 (file)
--- a/lib/timespec.h
+++ b/lib/timespec.h
@@ -1,6 +1,6 @@
 /* timespec -- System time interface
 
-   Copyright (C) 2000, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2002, 2004, 2005, 2007 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
@@ -14,39 +14,34 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #if ! defined TIMESPEC_H
 # define TIMESPEC_H
 
-/* You must include config.h before including this file.  */
-
-# include <sys/types.h>
-# if TIME_WITH_SYS_TIME
+# if HAVE_SYS_TIME_H
 #  include <sys/time.h>
-#  include <time.h>
-# else
-#  if HAVE_SYS_TIME_H
-#   include <sys/time.h>
-#  else
-#   include <time.h>
-#  endif
 # endif
+# include <time.h>
 
 # if ! HAVE_STRUCT_TIMESPEC
 /* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3.  */
 struct timespec
 {
   time_t tv_sec;
-  long tv_nsec;
+  long int tv_nsec;
 };
 # endif
 
-# ifdef ST_MTIM_NSEC
-#  define TIMESPEC_NS(timespec) ((timespec).ST_MTIM_NSEC)
-# else
-#  define TIMESPEC_NS(timespec) 0
-# endif
+/* Return negative, zero, positive if A < B, A == B, A > B, respectively.
+   Assume the nanosecond components are in range, or close to it.  */
+static inline int
+timespec_cmp (struct timespec a, struct timespec b)
+{
+  return (a.tv_sec < b.tv_sec ? -1
+         : a.tv_sec > b.tv_sec ? 1
+         : a.tv_nsec - b.tv_nsec);
+}
 
 # if ! HAVE_DECL_NANOSLEEP
 /* Don't specify a prototype here.  Some systems (e.g., OSF) declare
@@ -54,7 +49,7 @@ struct timespec
 int nanosleep ();
 # endif
 
-int gettime (struct timespec *);
+void gettime (struct timespec *);
 int settime (struct timespec const *);
 
 #endif