/usr/lib/xemacs-21.4.24/x86_64-linux-gnu/include/systime.h is in xemacs21-bin 21.4.24-4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 | /* systime.h - System-dependent definitions for time manipulations.
Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of XEmacs.
XEmacs 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.
XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Synched up with: FSF 19.30. */
#ifndef INCLUDED_systime_h_
#define INCLUDED_systime_h_
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
/* select() is supposed to be (Unix98) defined in sys/time.h,
but FreeBSD and Irix 5 put it in unistd.h instead.
If we have it, including it can't hurt. */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef WIN32_NATIVE
/* This defines struct timeval */
#include <winsock.h>
struct timezone
{
int tz_minuteswest; /* minutes west of Greenwich */
int tz_dsttime; /* type of dst correction */
};
#ifdef HAVE_X_WINDOWS
/* Provides gettimeofday etc */
#include <X11/Xw32defs.h>
#include <X11/Xos.h>
#else
/* X11R6 on NT provides the single parameter version of this command */
void gettimeofday (struct timeval *, struct timezone *);
#endif /* HAVE_X_WINDOWS */
#endif /* WIN32_NATIVE */
/* struct utimbuf */
#ifdef HAVE_UTIME
# include <utime.h>
#endif
#ifdef WIN32_NATIVE
# include <sys/utime.h>
#endif
#if defined(HAVE_TZNAME) && !defined(WIN32_NATIVE) && !defined(CYGWIN)
#ifndef tzname /* For SGI. */
extern char *tzname[]; /* RS6000 and others want it this way. */
#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
/* EMACS_TIME is the type to use to represent temporal intervals.
At one point this was 'struct timeval' on some systems, int on others.
But this is stupid. Other things than select() code like to
manipulate time values, and so microsecond precision should be
maintained. Separate typedefs and conversion functions are provided
for select().
EMACS_SECS (TIME) is an rvalue for the seconds component of TIME.
EMACS_SET_SECS (TIME, SECONDS) sets that to SECONDS.
EMACS_USECS (TIME) is an rvalue for the microseconds component of TIME.
EMACS_SET_USECS (TIME, MICROSECONDS) sets that to MICROSECONDS.
Note that all times are returned in "normalized" format (i.e. the
usecs value is in the range 0 <= value < 1000000) and are assumed
to be passed in in this format.
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.
set_file_times (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_NORMALIZE_TIME (TIME) coerces TIME into normalized format.
EMACS_ADD_TIME (DEST, SRC1, SRC2) adds SRC1 to SRC2 and stores the
result in DEST. Either or both may be negative.
EMACS_SUB_TIME (DEST, SRC1, SRC2) subtracts SRC2 from SRC1 and
stores the result in DEST. Either or both may be negative.
EMACS_TIME_NEG_P (TIME) is true iff TIME is negative.
EMACS_TIME_EQUAL (TIME1, TIME2) is true iff TIME1 is the same as TIME2.
EMACS_TIME_GREATER (TIME1, TIME2) is true iff TIME1 is greater than
TIME2.
EMACS_TIME_EQUAL_OR_GREATER (TIME1, TIME2) is true iff TIME1 is
greater than or equal to TIME2.
*/
#ifdef HAVE_TIMEVAL
#define EMACS_SELECT_TIME struct timeval
#define EMACS_TIME_TO_SELECT_TIME(time, select_time) ((select_time) = (time))
#else /* not HAVE_TIMEVAL */
struct timeval
{
long tv_sec; /* seconds */
long tv_usec; /* microseconds */
};
#define EMACS_SELECT_TIME int
#define EMACS_TIME_TO_SELECT_TIME(time, select_time) \
EMACS_TIME_TO_INT (time, select_time)
#endif /* not HAVE_TIMEVAL */
#define EMACS_TIME_TO_INT(time, intvar) \
do { \
EMACS_TIME tmptime = time; \
\
if (tmptime.tv_usec > 0) \
(intvar) = tmptime.tv_sec + 1; \
else \
(intvar) = tmptime.tv_sec; \
} while (0)
#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, microseconds) ((time).tv_usec = (microseconds))
#if !defined (HAVE_GETTIMEOFDAY)
int gettimeofday (struct timeval *, void *);
#endif
/* On SVR4, the compiler may complain if given this extra BSD arg. */
#ifdef GETTIMEOFDAY_ONE_ARGUMENT
#define EMACS_GETTIMEOFDAY(time) gettimeofday(time)
#else
#define EMACS_GETTIMEOFDAY(time) gettimeofday(time,0)
#endif
/* According to the Xt sources, some NTP daemons on some systems may
return non-normalized values. */
#define EMACS_GET_TIME(time) \
do { \
EMACS_GETTIMEOFDAY (&(time)); \
EMACS_NORMALIZE_TIME (time); \
} while (0)
#define EMACS_NORMALIZE_TIME(time) \
do { \
while ((time).tv_usec >= 1000000) \
{ \
(time).tv_usec -= 1000000; \
(time).tv_sec++; \
} \
while ((time).tv_usec < 0) \
{ \
(time).tv_usec += 1000000; \
(time).tv_sec--; \
} \
} while (0)
#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; \
EMACS_NORMALIZE_TIME (dest); \
} 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; \
EMACS_NORMALIZE_TIME (dest); \
} while (0)
#define EMACS_TIME_NEG_P(time) ((long)(time).tv_sec < 0)
#define EMACS_TIME_EQUAL(time1, time2) \
((time1).tv_sec == (time2).tv_sec && \
(time1).tv_usec == (time2).tv_usec)
#define EMACS_TIME_GREATER(time1, time2) \
((time1).tv_sec > (time2).tv_sec || \
((time1).tv_sec == (time2).tv_sec && \
(time1).tv_usec > (time2).tv_usec))
#define EMACS_TIME_EQUAL_OR_GREATER(time1, time2) \
((time1).tv_sec > (time2).tv_sec || \
((time1).tv_sec == (time2).tv_sec && \
(time1).tv_usec >= (time2).tv_usec))
#define EMACS_SET_SECS_USECS(time, secs, usecs) \
(EMACS_SET_SECS (time, secs), EMACS_SET_USECS (time, usecs))
#ifdef emacs
int set_file_times (Lisp_Object path, EMACS_TIME atime, EMACS_TIME mtime);
#endif
void get_process_times (double *user_time, double *system_time,
double *real_time);
#if defined(WIN32_NATIVE) || defined(BROKEN_CYGWIN)
/* setitimer emulation for Win32 (see nt.c) */
struct itimerval
{
struct timeval it_value;
struct timeval it_interval;
};
#define ITIMER_REAL 1
#define ITIMER_PROF 2
#endif /* WIN32_NATIVE || BROKEN_CYGWIN */
#if defined (WIN32_NATIVE) || defined (CYGWIN)
int mswindows_setitimer (int kind, const struct itimerval *itnew,
struct itimerval *itold);
#endif /* defined (WIN32_NATIVE) || defined (CYGWIN) */
/* #### Move this comment elsewhere when we figure out the place.
"qxe" is a unique prefix used to identify encapsulations of standard
library functions. We used to play pre-processing games but in
general this leads to nothing but trouble because someone first
encountering the code will have no idea that what appears to be a
call to a library function has actually been redefined to be a call
somewhere else. This is doubly true when the redefinition occurs
in out-of-the way s+m files and only on certainly systems.
By making the encapsulation explicit we might be making the code
that uses is slightly less pretty, but this is more than compensated
for by the huge increase in clarity.
"Standard library function" can refer to any function in any
standard library. If we are explicitly changing the semantics
(e.g. Mule-encapsulating), we should use an extended version of
the prefix, e.g. perhaps "qxe_xlat_" for functions that Mule-
encapsulate, or "qxe_retry_" for functions that automatically
retry a system call interrupted by EINTR. In general, if there
is no prefix extension, it means the function is trying to
provide (more or less) the same semantics as the standard library
function; but be aware that the reimplementation may be incomplete
or differ in important respects. This is especially the case
when attempts are made to implement Unix functions on MS Windows.
*/
int qxe_setitimer (int kind, const struct itimerval *itnew,
struct itimerval *itold);
#endif /* INCLUDED_systime_h_ */
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