-/* systerm.h - System-dependent definitions for time manipulations.
- Copyright (C) 1992 Free Software Foundation, Inc.
+/* systime.h - System-dependent definitions for time manipulations.
+ Copyright (C) 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs 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 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-#ifdef NEED_TIME_H
-
-/* _h_BSDTYPES is checked because on ISC unix, socket.h includes
- both time.h and sys/time.h, and the later file is protected
- from repeated inclusion. We just hope that other systems will
- use this guard either not at all, or similarly. */
-#ifndef _h_BSDTYPES
+#ifdef TIME_WITH_SYS_TIME
+#include <sys/time.h>
#include <time.h>
-#endif
-#else /* not NEED_TIME_H */
-#ifdef HAVE_TIMEVAL
+#else
+#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
-#endif /* HAVE_TIMEVAL */
-#endif /* not NEED_TIME_H */
+#else
+#include <time.h>
+#endif
+#endif
+
+#ifdef HAVE_TZNAME
+#ifndef tzname /* For SGI. */
+extern char *tzname[]; /* RS6000 and others want it this way. */
+#endif
+#endif
+
+/* SVr4 doesn't actually declare this in its #include files. */
+#ifdef USG5_4
+extern long timezone;
+#endif
+#ifdef VMS
+#ifdef VAXC
+#include "vmstime.h"
+#endif
+#endif
+
+/* On some configurations (hpux8.0, X11R4), sys/time.h and X11/Xos.h
+ disagree about the name of the guard symbol. */
+#ifdef HPUX
+#ifdef _STRUCT_TIMEVAL
+#ifndef __TIMEVAL__
+#define __TIMEVAL__
+#endif
+#endif
+#endif
+\f
/* EMACS_TIME is the type to use to represent temporal intervals -
struct timeval on some systems, int on others. It can be passed as
- the timeout argument to the select () system call.
+ the timeout argument to the select system call.
EMACS_SECS (TIME) is an rvalue for the seconds component of TIME.
EMACS_SET_SECS (TIME, SECONDS) sets that to SECONDS.
EMACS_HAS_USECS is defined iff EMACS_TIME has a usecs component.
- EMACS_USECS (TIME) is an rvalue for the milliseconds component of TIME.
- This returns zero if EMACS_TIME doesn't have a milliseconds component.
- EMACS_SET_USECS (TIME, MILLISECONDS) sets that to MILLISECONDS.
- This does nothing if EMACS_TIME doesn't have a milliseconds component.
+ EMACS_USECS (TIME) is an rvalue for the microseconds component of TIME.
+ This returns zero if EMACS_TIME doesn't have a microseconds component.
+ EMACS_SET_USECS (TIME, MICROSECONDS) sets that to MICROSECONDS.
+ This does nothing if EMACS_TIME doesn't have a microseconds component.
EMACS_SET_SECS_USECS (TIME, SECS, USECS) sets both components of TIME.
EMACS_GET_TIME (TIME) stores the current system time in TIME, which
should be an lvalue.
- EMACS_SET_UTIMES (PATH, ATIME, MTIME) changes the last-access and
- last-modification times of the file named PATH to ATIME and
- MTIME, which are EMACS_TIMEs.
EMACS_ADD_TIME (DEST, SRC1, SRC2) adds SRC1 to SRC2 and stores the
result in DEST. SRC should not be negative.
#ifdef HAVE_TIMEVAL
+#define EMACS_HAS_USECS
+
#define EMACS_TIME struct timeval
#define EMACS_SECS(time) ((time).tv_sec + 0)
#define EMACS_USECS(time) ((time).tv_usec + 0)
#define EMACS_SET_SECS(time, seconds) ((time).tv_sec = (seconds))
-#define EMACS_SET_USECS(time, milliseconds) ((time).tv_usec = (milliseconds))
+#define EMACS_SET_USECS(time, microseconds) ((time).tv_usec = (microseconds))
+/* On SVR4, the compiler may complain if given this extra BSD arg. */
+#ifdef GETTIMEOFDAY_ONE_ARGUMENT
+#define EMACS_GET_TIME(time) \
+{ \
+ gettimeofday (&(time)); \
+}
+#else /* not GETTIMEOFDAY_ONE_ARGUMENT */
#define EMACS_GET_TIME(time) \
{ \
- EMACS_TIME dummy; \
+ struct timezone dummy; \
gettimeofday (&(time), &dummy); \
}
+#endif /* not GETTIMEOFDAY_ONE_ARGUMENT */
#define EMACS_ADD_TIME(dest, src1, src2) \
{ \
}
#define EMACS_TIME_NEG_P(time) \
- ((time).tv_sec < 0 \
+ ((long)(time).tv_sec < 0 \
|| ((time).tv_sec == 0 \
- && (time).tv_usec < 0))
+ && (long)(time).tv_usec < 0))
-#else /* not def HAVE_TIMEVAL */
+#else /* ! defined (HAVE_TIMEVAL) */
#define EMACS_TIME int
#define EMACS_SECS(time) (time)
+#define EMACS_USECS(time) 0
#define EMACS_SET_SECS(time, seconds) ((time) = (seconds))
+#define EMACS_SET_USECS(time, usecs) 0
#define EMACS_GET_TIME(t) ((t) = time ((long *) 0))
#define EMACS_ADD_TIME(dest, src1, src2) ((dest) = (src1) + (src2))
#define EMACS_SUB_TIME(dest, src1, src2) ((dest) = (src1) - (src2))
#define EMACS_TIME_NEG_P(t) ((t) < 0)
-#endif /* def HAVE_TIMEVAL */
+#endif /* ! defined (HAVE_TIMEVAL) */
#define EMACS_SET_SECS_USECS(time, secs, usecs) \
(EMACS_SET_SECS (time, secs), EMACS_SET_USECS (time, usecs))
-#ifdef USE_UTIME
-
-#define EMACS_SET_UTIMES(path, atime, mtime) \
- { \
- struct time_t tv[2]; \
- tv[0] = EMACS_SECS (atime); \
- tv[1] = EMACS_SECS (mtime); \
- utime ((path), tv); \
- }
-
-#else
-
-#define EMACS_SET_UTIMES(path, atime, mtime) \
- { \
- EMACS_TIME tv[2]; \
- tv[0] = atime; \
- tv[1] = mtime; \
- utimes ((path), tv); \
- }
-
-#endif
+extern int set_file_times ();