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/usr/include/isc

Name	Size	Mode	Actions
app.h	10535	0644	edit dl rm
assertions.h	3314	0644	edit dl rm
atomic.h	4258	0644	edit dl rm
base64.h	2967	0644	edit dl rm
bind9.h	1185	0644	edit dl rm
bitstring.h	4478	0644	edit dl rm
boolean.h	1212	0644	edit dl rm
buffer.h	22941	0644	edit dl rm
bufferlist.h	1979	0644	edit dl rm
commandline.h	1823	0644	edit dl rm
condition.h	2011	0644	edit dl rm
counter.h	2328	0644	edit dl rm
dir.h	2569	0644	edit dl rm
entropy.h	9444	0644	edit dl rm
error.h	1871	0644	edit dl rm
event.h	3360	0644	edit dl rm
eventclass.h	1915	0644	edit dl rm
file.h	9259	0644	edit dl rm
formatcheck.h	1423	0644	edit dl rm
fsaccess.h	7954	0644	edit dl rm
hash.h	5973	0644	edit dl rm
heap.h	5754	0644	edit dl rm
hex.h	2911	0644	edit dl rm
hmacmd5.h	1964	0644	edit dl rm
httpd.h	2029	0644	edit dl rm
int.h	1873	0644	edit dl rm
interfaceiter.h	3631	0644	edit dl rm
iterated_hash.h	1512	0644	edit dl rm
keyboard.h	1510	0644	edit dl rm
lang.h	1158	0644	edit dl rm
lex.h	9653	0644	edit dl rm
lfsr.h	3480	0644	edit dl rm
lib.h	1594	0644	edit dl rm
list.h	5887	0644	edit dl rm
log.h	28964	0644	edit dl rm
magic.h	1471	0644	edit dl rm
md5.h	2527	0644	edit dl rm
mem.h	21767	0644	edit dl rm
msgcat.h	3256	0644	edit dl rm
msgs.h	8862	0644	edit dl rm
mutex.h	4061	0644	edit dl rm
mutexblock.h	1902	0644	edit dl rm
namespace.h	7184	0644	edit dl rm
net.h	9269	0644	edit dl rm
netaddr.h	4917	0644	edit dl rm
netdb.h	1392	0644	edit dl rm
offset.h	1898	0644	edit dl rm
once.h	1510	0644	edit dl rm
ondestroy.h	3327	0644	edit dl rm
os.h	1191	0644	edit dl rm
parseint.h	2058	0644	edit dl rm
platform.h	8623	0644	edit dl rm
print.h	2449	0644	edit dl rm
quota.h	2873	0644	edit dl rm
radix.h	7058	0644	edit dl rm
random.h	1826	0644	edit dl rm
ratelimiter.h	3564	0644	edit dl rm
refcount.h	6203	0644	edit dl rm
region.h	2497	0644	edit dl rm
resource.h	3396	0644	edit dl rm
result.h	4814	0644	edit dl rm
resultclass.h	2077	0644	edit dl rm
rwlock.h	3843	0644	edit dl rm
serial.h	1959	0644	edit dl rm
sha1.h	1806	0644	edit dl rm
sha2.h	5861	0644	edit dl rm
sockaddr.h	6578	0644	edit dl rm
socket.h	32969	0644	edit dl rm
stdio.h	2243	0644	edit dl rm
stdlib.h	1221	0644	edit dl rm
stdtime.h	1880	0644	edit dl rm
string.h	6404	0644	edit dl rm
symtab.h	4748	0644	edit dl rm
syslog.h	1373	0644	edit dl rm
task.h	19753	0644	edit dl rm
taskpool.h	3787	0644	edit dl rm
thread.h	1878	0644	edit dl rm
time.h	8045	0644	edit dl rm
timer.h	11285	0644	edit dl rm
types.h	5929	0644	edit dl rm
util.h	7934	0644	edit dl rm
version.h	1207	0644	edit dl rm
xml.h	1556	0644	edit dl rm

Edit: /usr/include/isc/time.h (8045B)

/*
 * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
 * Copyright (C) 1998-2001  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id: time.h,v 1.40 2009-01-05 23:47:54 tbox Exp $ */

#ifndef ISC_TIME_H
#define ISC_TIME_H 1

/*! \file */

#include <isc/lang.h>
#include <isc/types.h>

/***
 *** Intervals
 ***/

/*!
 *  \brief
 * The contents of this structure are private, and MUST NOT be accessed
 * directly by callers.
 *
 * The contents are exposed only to allow callers to avoid dynamic allocation.
 */
struct isc_interval {
	unsigned int seconds;
	unsigned int nanoseconds;
};

extern isc_interval_t *isc_interval_zero;

ISC_LANG_BEGINDECLS

void
isc_interval_set(isc_interval_t *i,
		 unsigned int seconds, unsigned int nanoseconds);
/*%<
 * Set 'i' to a value representing an interval of 'seconds' seconds and
 * 'nanoseconds' nanoseconds, suitable for use in isc_time_add() and
 * isc_time_subtract().
 *
 * Requires:
 *
 *\li	't' is a valid pointer.
 *\li	nanoseconds < 1000000000.
 */

isc_boolean_t
isc_interval_iszero(const isc_interval_t *i);
/*%<
 * Returns ISC_TRUE iff. 'i' is the zero interval.
 *
 * Requires:
 *
 *\li	'i' is a valid pointer.
 */

/***
 *** Absolute Times
 ***/

/*%
 * The contents of this structure are private, and MUST NOT be accessed
 * directly by callers.
 *
 * The contents are exposed only to allow callers to avoid dynamic allocation.
 */

struct isc_time {
	unsigned int	seconds;
	unsigned int	nanoseconds;
};

extern isc_time_t *isc_time_epoch;

void
isc_time_set(isc_time_t *t, unsigned int seconds, unsigned int nanoseconds);
/*%<
 * Set 't' to a value which represents the given number of seconds and
 * nanoseconds since 00:00:00 January 1, 1970, UTC.
 *
 * Notes:
 *\li	The Unix version of this call is equivalent to:
 *\code
 *	isc_time_settoepoch(t);
 *	isc_interval_set(i, seconds, nanoseconds);
 *	isc_time_add(t, i, t);
 *\endcode
 *
 * Requires:
 *\li	't' is a valid pointer.
 *\li	nanoseconds < 1000000000.
 */

void
isc_time_settoepoch(isc_time_t *t);
/*%<
 * Set 't' to the time of the epoch.
 *
 * Notes:
 *\li	The date of the epoch is platform-dependent.
 *
 * Requires:
 *
 *\li	't' is a valid pointer.
 */

isc_boolean_t
isc_time_isepoch(const isc_time_t *t);
/*%<
 * Returns ISC_TRUE iff. 't' is the epoch ("time zero").
 *
 * Requires:
 *
 *\li	't' is a valid pointer.
 */

isc_result_t
isc_time_now(isc_time_t *t);
/*%<
 * Set 't' to the current absolute time.
 *
 * Requires:
 *
 *\li	't' is a valid pointer.
 *
 * Returns:
 *
 *\li	Success
 *\li	Unexpected error
 *		Getting the time from the system failed.
 *\li	Out of range
 *		The time from the system is too large to be represented
 *		in the current definition of isc_time_t.
 */

isc_result_t
isc_time_nowplusinterval(isc_time_t *t, const isc_interval_t *i);
/*%<
 * Set *t to the current absolute time + i.
 *
 * Note:
 *\li	This call is equivalent to:
 *
 *\code
 *		isc_time_now(t);
 *		isc_time_add(t, i, t);
 *\endcode
 *
 * Requires:
 *
 *\li	't' and 'i' are valid pointers.
 *
 * Returns:
 *
 *\li	Success
 *\li	Unexpected error
 *		Getting the time from the system failed.
 *\li	Out of range
 *		The interval added to the time from the system is too large to
 *		be represented in the current definition of isc_time_t.
 */

int
isc_time_compare(const isc_time_t *t1, const isc_time_t *t2);
/*%<
 * Compare the times referenced by 't1' and 't2'
 *
 * Requires:
 *
 *\li	't1' and 't2' are valid pointers.
 *
 * Returns:
 *
 *\li	-1		t1 < t2		(comparing times, not pointers)
 *\li	0		t1 = t2
 *\li	1		t1 > t2
 */

isc_result_t
isc_time_add(const isc_time_t *t, const isc_interval_t *i, isc_time_t *result);
/*%<
 * Add 'i' to 't', storing the result in 'result'.
 *
 * Requires:
 *
 *\li	't', 'i', and 'result' are valid pointers.
 *
 * Returns:
 *\li	Success
 *\li	Out of range
 * 		The interval added to the time is too large to
 *		be represented in the current definition of isc_time_t.
 */

isc_result_t
isc_time_subtract(const isc_time_t *t, const isc_interval_t *i,
		  isc_time_t *result);
/*%<
 * Subtract 'i' from 't', storing the result in 'result'.
 *
 * Requires:
 *
 *\li	't', 'i', and 'result' are valid pointers.
 *
 * Returns:
 *\li	Success
 *\li	Out of range
 *		The interval is larger than the time since the epoch.
 */

isc_uint64_t
isc_time_microdiff(const isc_time_t *t1, const isc_time_t *t2);
/*%<
 * Find the difference in microseconds between time t1 and time t2.
 * t2 is the subtrahend of t1; ie, difference = t1 - t2.
 *
 * Requires:
 *
 *\li	't1' and 't2' are valid pointers.
 *
 * Returns:
 *\li	The difference of t1 - t2, or 0 if t1 <= t2.
 */

isc_uint32_t
isc_time_seconds(const isc_time_t *t);
/*%<
 * Return the number of seconds since the epoch stored in a time structure.
 *
 * Requires:
 *
 *\li	't' is a valid pointer.
 */

isc_result_t
isc_time_secondsastimet(const isc_time_t *t, time_t *secondsp);
/*%<
 * Ensure the number of seconds in an isc_time_t is representable by a time_t.
 *
 * Notes:
 *\li	The number of seconds stored in an isc_time_t might be larger
 *	than the number of seconds a time_t is able to handle.  Since
 *	time_t is mostly opaque according to the ANSI/ISO standard
 *	(essentially, all you can be sure of is that it is an arithmetic type,
 *	not even necessarily integral), it can be tricky to ensure that
 *	the isc_time_t is in the range a time_t can handle.  Use this
 *	function in place of isc_time_seconds() any time you need to set a
 *	time_t from an isc_time_t.
 *
 * Requires:
 *\li	't' is a valid pointer.
 *
 * Returns:
 *\li	Success
 *\li	Out of range
 */

isc_uint32_t
isc_time_nanoseconds(const isc_time_t *t);
/*%<
 * Return the number of nanoseconds stored in a time structure.
 *
 * Notes:
 *\li	This is the number of nanoseconds in excess of the number
 *	of seconds since the epoch; it will always be less than one
 *	full second.
 *
 * Requires:
 *\li	't' is a valid pointer.
 *
 * Ensures:
 *\li	The returned value is less than 1*10^9.
 */

void
isc_time_formattimestamp(const isc_time_t *t, char *buf, unsigned int len);
/*%<
 * Format the time 't' into the buffer 'buf' of length 'len',
 * using a format like "30-Aug-2000 04:06:47.997" and the local time zone.
 * If the text does not fit in the buffer, the result is indeterminate,
 * but is always guaranteed to be null terminated.
 *
 *  Requires:
 *\li      'len' > 0
 *\li      'buf' points to an array of at least len chars
 *
 */

void
isc_time_formathttptimestamp(const isc_time_t *t, char *buf, unsigned int len);
/*%<
 * Format the time 't' into the buffer 'buf' of length 'len',
 * using a format like "Mon, 30 Aug 2000 04:06:47 GMT"
 * If the text does not fit in the buffer, the result is indeterminate,
 * but is always guaranteed to be null terminated.
 *
 *  Requires:
 *\li      'len' > 0
 *\li      'buf' points to an array of at least len chars
 *
 */

void
isc_time_formatISO8601(const isc_time_t *t, char *buf, unsigned int len);
/*%<
 * Format the time 't' into the buffer 'buf' of length 'len',
 * using the ISO8601 format: "yyyy-mm-ddThh:mm:ssZ"
 * If the text does not fit in the buffer, the result is indeterminate,
 * but is always guaranteed to be null terminated.
 *
 *  Requires:
 *\li      'len' > 0
 *\li      'buf' points to an array of at least len chars
 *
 */

ISC_LANG_ENDDECLS

#endif /* ISC_TIME_H */

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