glibc/time/sys/time.h
Roland McGrath 92777700d2 Mon Feb 26 10:22:30 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* sysdeps/unix/dirstream.h: Rewritten.
	* sysdeps/unix/readdir.c: Rewritten.
	* sysdeps/unix/telldir.c: Rewritten.
	* sysdeps/unix/closedir.c: Use <...> instead of "..." for dirstream.h.
	Remove __ from DIR struct member names.
	* sysdeps/unix/dirfd.c: Likewise.
	* sysdeps/unix/seekdir.c: Likewise.
	* sysdeps/unix/rewinddir.c: Likewise.
	* sysdeps/unix/opendir.c: Likewise.  Don't allocate extra space after
	DIR structure.
	* sysdeps/stub/direct.h: File removed.
	* sysdeps/unix/bsd/bsd4.4/direct.h: File removed.
	* sysdeps/unix/bsd/direct.h: File removed.
	* sysdeps/unix/common/direct.h: File removed.
	* sysdeps/unix/sysv/irix4/direct.h: File removed.
	* sysdeps/unix/sysv/isc3/direct.h: File removed.
	* sysdeps/unix/sysv/sco3.2.4/direct.h: File removed.
	* sysdeps/unix/sysv/sysv4/solaris2/direct.h: File removed.
	* sysdeps/unix/common/direntry.h: New file.
	* sysdeps/unix/bsd/direntry.h: New file.
	* sysdeps/unix/bsd/bsd4.4/direntry.h: New file.
	* sysdeps/unix/sysv/direntry.h: New file.
	* sysdeps/stub/direntry.h: New file.
	* dirent/dirent.h (struct dirent): Type removed.  Include <direntry.h>
	to define it.
	(_D_EXACT_NAMLEN, _D_ALLOC_NAMLEN): New macros.
	* dirent/Makefile (headers): Add direntry.h.
	(distribute): Remove direct.h.
	* sysdeps/posix/getcwd.c: Use new macros instead of d_namlen.
	* dirent/scandir.c: Likewise.
	* io/fts.c (fts_build): Likewise.
	* io/ftw.c (ftw_dir): Likewise.
	* sysdeps/posix/ttyname.c: Likewise.

	* sysdeps/unix/sysv/sysv4/solaris2/syscalls.list: New file.

	* sysdeps/mach/hurd/profil.c (MAX_PC_SAMPLES): New macro.
	(collector_timeout): New static variable.
	(update_waiter): Actually call __task_enable_pc_sampling.
	Set collector_timeout based on the `tick' count returned.
	(profile_waiter): Use MAX_PC_SAMPLES.  Set nsamples before RPC.
	Use collector_timeout in __mach_msg call.

	* gmon/Makefile (noprof): New variable containing mcount.
	Append profil unless it is in $(unix-syscalls).
	(mcount.po): Use $(noprof) for list of targets in this rule.

	* libc-symbols.h: Define _LIBC before #include <config.h>.

Sun Feb 25 12:29:23 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	* config.h.in [_LIBC] (HAVE_STRERROR): Define it.
	Protect 2nd page of #undef's for generator programs with #ifndef _LIBC.

	* time/zic.c, time/zdump.c, time/private.h: Updated from ADO's latest.

Fri Feb  9 12:40:19 1996  Brendan Kehoe  <brendan@lisa.cygnus.com>

 	* libio/cleanup.c (_IO_cleanup_registration_needed)
	[!_G_HAVE_ATEXIT]: Init to NULL.
	* libio/filedoalloc.c (_IO_cleanup_registration_needed): Remove decl.

Thu Feb  8 08:12:50 1996  Brendan Kehoe  <brendan@cygnus.com>

	* libio/filedoalloc.c (_IO_cleanup_registration_needed): Revert
	previous change, since cleanup.c only defines it if _G_HAVE_ATEXIT.

Wed Feb  7 15:10:17 1996  Brendan Kehoe  <brendan@lisa.cygnus.com>

	* libio/filedoalloc.c (_IO_cleanup_registration_needed): Declare as
	extern.

Sat Feb 24 11:34:13 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	* sysdeps/i386/memcmp.S: Fix argument %esp offsets.

	* time/sys/time.h (timeradd, timersub): New macros; BSD has these.
1996-02-27 00:55:03 +00:00

167 lines
6.0 KiB
C

/* Copyright (C) 1991, 92, 93, 94, 96 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#ifndef _SYS_TIME_H
#define _SYS_TIME_H 1
#include <features.h>
#include <time.h>
__BEGIN_DECLS
/* A time value that is accurate to the nearest
microsecond but also has a range of years. */
struct timeval
{
int tv_sec; /* Seconds. */
int tv_usec; /* Microseconds. */
};
/* POSIX.4 structure for a time value. This is like a `struct timeval' but
has nanoseconds instead of microseconds. */
struct timespec
{
long int ts_sec; /* Seconds. */
long int ts_nsec; /* Nanoseconds. */
};
/* Macros for converting between `struct timeval' and `struct timespec'. */
#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
(ts)->ts_sec = (tv)->tv_sec; \
(ts)->ts_nsec = (tv)->tv_usec * 1000; \
}
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
(tv)->tv_sec = (ts)->ts_sec; \
(tv)->tv_usec = (ts)->ts_nsec / 1000; \
}
/* Structure crudely representing a timezone.
This is obsolete and should never be used. */
struct timezone
{
int tz_minuteswest; /* Minutes west of GMT. */
int tz_dsttime; /* Nonzero if DST is ever in effect. */
};
/* Get the current time of day and timezone information,
putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
Returns 0 on success, -1 on errors.
NOTE: This form of timezone information is obsolete.
Use the functions and variables declared in <time.h> instead. */
extern int __gettimeofday __P ((struct timeval *__tv,
struct timezone *__tz));
extern int gettimeofday __P ((struct timeval *__tv,
struct timezone *__tz));
/* Set the current time of day and timezone information.
This call is restricted to the super-user. */
extern int __settimeofday __P ((__const struct timeval *__tv,
__const struct timezone *__tz));
extern int settimeofday __P ((__const struct timeval *__tv,
__const struct timezone *__tz));
/* Adjust the current time of day by the amount in DELTA.
If OLDDELTA is not NULL, it is filled in with the amount
of time adjustment remaining to be done from the last `adjtime' call.
This call is restricted to the super-user. */
extern int __adjtime __P ((__const struct timeval *__delta,
struct timeval *__olddelta));
extern int adjtime __P ((__const struct timeval *__delta,
struct timeval *__olddelta));
/* Values for the first argument to `getitimer' and `setitimer'. */
enum __itimer_which
{
/* Timers run in real time. */
ITIMER_REAL = 0,
/* Timers run only when the process is executing. */
ITIMER_VIRTUAL = 1,
/* Timers run when the process is executing and when
the system is executing on behalf of the process. */
ITIMER_PROF = 2
};
/* Type of the second argument to `getitimer' and
the second and third arguments `setitimer'. */
struct itimerval
{
/* Value to put into `it_value' when the timer expires. */
struct timeval it_interval;
/* Time to the next timer expiration. */
struct timeval it_value;
};
/* Set *VALUE to the current setting of timer WHICH.
Return 0 on success, -1 on errors. */
extern int __getitimer __P ((enum __itimer_which __which,
struct itimerval *__value));
extern int getitimer __P ((enum __itimer_which __which,
struct itimerval *__value));
/* Set the timer WHICH to *NEW. If OLD is not NULL,
set *OLD to the old value of timer WHICH.
Returns 0 on success, -1 on errors. */
extern int __setitimer __P ((enum __itimer_which __which,
struct itimerval *__new,
struct itimerval *__old));
extern int setitimer __P ((enum __itimer_which __which,
struct itimerval *__new,
struct itimerval *__old));
/* Change the access time of FILE to TVP[0] and
the modification time of FILE to TVP[1]. */
extern int __utimes __P ((__const char *__file, struct timeval __tvp[2]));
extern int utimes __P ((__const char *__file, struct timeval __tvp[2]));
/* Convenience macros for operations on timevals.
NOTE: `timercmp' does not work for >= or <=. */
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
#define timercmp(a, b, CMP) \
(((a)->tv_sec == (b)->tv_sec) ? \
((a)->tv_usec CMP (b)->tv_usec) : \
((a)->tv_sec CMP (b)->tv_sec))
#define timeradd(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
if ((result)->tv_usec >= 1000000) \
{ \
++(result)->tv_sec; \
(result)->tv_usec -= 1000000; \
} \
} while (0)
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
__END_DECLS
#endif /* sys/time.h */