-/* 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, 2002, 2003, 2004,
+ 2005, 2006 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., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
-#ifdef NEED_TIME_H
+#ifndef EMACS_SYSTIME_H
+#define EMACS_SYSTIME_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 time_t 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.
EMACS_SUB_TIME (DEST, SRC1, SRC2) subtracts SRC2 from SRC1 and
- stores the result in DEST. SRC should not be negative.
+ stores the result in DEST. SRC should not be negative.
EMACS_TIME_NEG_P (TIME) is true iff TIME is 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_GET_TIME(time) \
-{ \
- EMACS_TIME dummy; \
- gettimeofday (&(time), &dummy); \
-}
-
-#define EMACS_ADD_TIME(dest, src1, src2) \
-{ \
- (dest).tv_sec = (src1).tv_sec + (src2).tv_sec; \
- (dest).tv_usec = (src1).tv_usec + (src2).tv_usec; \
- if ((dest).tv_usec > 1000000) \
- (dest).tv_usec -= 1000000, (dest).tv_sec++; \
-}
-
-#define EMACS_SUB_TIME(dest, src1, src2) \
-{ \
- (dest).tv_sec = (src1).tv_sec - (src2).tv_sec; \
- (dest).tv_usec = (src1).tv_usec - (src2).tv_usec; \
- if ((dest).tv_usec < 0) \
- (dest).tv_usec += 1000000, (dest).tv_sec--; \
-}
+#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 */
+#ifdef HAVE_STRUCT_TIMEZONE
+#define EMACS_GET_TIME(time) \
+ do { \
+ struct timezone dummy; \
+ gettimeofday (&(time), &dummy); \
+ } while (0)
+#else
+/* Presumably the second arg is ignored. */
+#define EMACS_GET_TIME(time) gettimeofday (&(time), NULL)
+#endif /* HAVE_STRUCT_TIMEZONE */
+#endif /* not GETTIMEOFDAY_ONE_ARGUMENT */
+
+#define EMACS_ADD_TIME(dest, src1, src2) \
+ do { \
+ (dest).tv_sec = (src1).tv_sec + (src2).tv_sec; \
+ (dest).tv_usec = (src1).tv_usec + (src2).tv_usec; \
+ if ((dest).tv_usec > 1000000) \
+ (dest).tv_usec -= 1000000, (dest).tv_sec++; \
+ } while (0)
+
+#define EMACS_SUB_TIME(dest, src1, src2) \
+ do { \
+ (dest).tv_sec = (src1).tv_sec - (src2).tv_sec; \
+ (dest).tv_usec = (src1).tv_usec - (src2).tv_usec; \
+ if ((dest).tv_usec < 0) \
+ (dest).tv_usec += 1000000, (dest).tv_sec--; \
+ } while (0)
#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
+extern int set_file_times __P ((const char *, EMACS_TIME, EMACS_TIME));
-#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); \
- }
+/* defined in keyboard.c */
+extern void set_waiting_for_input __P ((EMACS_TIME *));
-#else
+/* When lisp.h is not included Lisp_Object is not defined (this can
+ happen when this files is used outside the src directory).
+ Use GCPRO1 to determine if lisp.h was included. */
+#ifdef GCPRO1
+/* defined in dired.c */
+extern Lisp_Object make_time __P ((time_t));
+#endif
-#define EMACS_SET_UTIMES(path, atime, mtime) \
- { \
- EMACS_TIME tv[2]; \
- tv[0] = atime; \
- tv[1] = mtime; \
- utimes ((path), tv); \
- }
+/* Compare times T1 and T2. Value is 0 if T1 and T2 are the same.
+ Value is < 0 if T1 is less than T2. Value is > 0 otherwise. */
-#endif
+#define EMACS_TIME_CMP(T1, T2) \
+ (EMACS_SECS (T1) - EMACS_SECS (T2) \
+ + (EMACS_SECS (T1) == EMACS_SECS (T2) \
+ ? EMACS_USECS (T1) - EMACS_USECS (T2) \
+ : 0))
+
+/* Compare times T1 and T2 for equality, inequality etc. */
+
+#define EMACS_TIME_EQ(T1, T2) (EMACS_TIME_CMP (T1, T2) == 0)
+#define EMACS_TIME_NE(T1, T2) (EMACS_TIME_CMP (T1, T2) != 0)
+#define EMACS_TIME_GT(T1, T2) (EMACS_TIME_CMP (T1, T2) > 0)
+#define EMACS_TIME_GE(T1, T2) (EMACS_TIME_CMP (T1, T2) >= 0)
+#define EMACS_TIME_LT(T1, T2) (EMACS_TIME_CMP (T1, T2) < 0)
+#define EMACS_TIME_LE(T1, T2) (EMACS_TIME_CMP (T1, T2) <= 0)
+
+#endif /* EMACS_SYSTIME_H */
+
+/* arch-tag: dcb79915-cf99-4bce-9778-aade71d07651
+ (do not change this comment) */