ttyname_r: Make it work on MacOS X 10.4 and Solaris 10.

[gnulib.git] / lib / timespec.h

diff --git a/lib/timespec.h b/lib/timespec.h
index 2019ed5..81b3423 100644 (file)
--- a/lib/timespec.h
+++ b/lib/timespec.h
@@ -1,9 +1,12 @@
-/*  Copyright (C) 2000 Free Software Foundation, Inc.
+/* timespec -- System time interface
 
-   This program is free software; you can redistribute it and/or modify
+   Copyright (C) 2000, 2002, 2004-2005, 2007, 2009-2010 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, or (at your option)
-   any later version.
+   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,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -11,39 +14,26 @@
    GNU General Public License for more details.
 
    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.  */
-
-#if ! defined NANOSLEEP_H
-# define NANOSLEEP_H
-
-/* You must include config.h before including this file.  */
-
-# include <sys/types.h>
-# if TIME_WITH_SYS_TIME
-#  include <sys/time.h>
-#  include <time.h>
-# else
-#  if HAVE_SYS_TIME_H
-#   include <sys/time.h>
-#  else
-#   include <time.h>
-#  endif
-# endif
-
-# if ! HAVE_STRUCT_TIMESPEC
-/* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3.  */
-struct timespec
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#if ! defined TIMESPEC_H
+# define TIMESPEC_H
+
+# include <time.h>
+
+/* 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)
 {
-  time_t tv_sec;
-  long tv_nsec;
-};
-# endif
-
-# if ! HAVE_DECL_NANOSLEEP
-/* Don't specify a prototype here.  Some systems (e.g., OSF) declare
-   nanosleep with a conflicting one (const-less first parameter).  */
-int nanosleep ();
-# endif
+  return (a.tv_sec < b.tv_sec ? -1
+          : a.tv_sec > b.tv_sec ? 1
+          : a.tv_nsec < b.tv_nsec ? -1
+          : a.tv_nsec > b.tv_nsec ? 1
+          : 0);
+}
+
+void gettime (struct timespec *);
+int settime (struct timespec const *);
 
 #endif