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+ /*
+ ** OSSP tai - Time Handling
+ ** Copyright (c) 2002 Ralf S. Engelschall <rse@engelschall.com>
+ ** Copyright (c) 2002 The OSSP Project <http://www.ossp.org/>
+ ** Copyright (c) 2002 Cable & Wireless Deutschland <http://www.cw.com/de/>
+ **
+ ** This file is part of OSSP tai, a time handling library
+ ** which can be found at http://www.ossp.org/pkg/lib/tai/.
+ **
+ ** Permission to use, copy, modify, and 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.
+ **
+ ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ ** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ ** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ ** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ ** SUCH DAMAGE.
+ **
+ ** tai.h: public API
+ */
+
+ #ifndef __TAI_H__
+ #define __TAI_H__
+
+ #include <time.h> /* time_t, struct tm */
+
+ typedef enum {
+ TAI_OK = 0,
+ TAI_ERR_ARG,
+ TAI_ERR_USE,
+ TAI_ERR_OVF,
+ TAI_ERR_FMT,
+ TAI_ERR_PRS,
+ TAI_ERR_SYS,
+ TAI_ERR_IMP
+ } tai_rc_t;
+
+ typedef struct {
+ int sign;
+ unsigned long sec;
+ unsigned long nsec;
+ unsigned long asec;
+ } tai_offset_t;
+
+ typedef struct {
+ char bytes[16];
+ } tai_packed_t;
+
+ typedef enum {
+ /* lossless types */
+ TAI_TYPE_TMT, /* tai_t */
+ TAI_TYPE_PACKED, /* tai_packed_t (128 bit in 16 bytes network byte order) */
+ /* looser types */
+ TAI_TYPE_OFFSET, /* tai_off_t */
+ TAI_TYPE_SECONDS, /* long */
+ TAI_TYPE_NSECONDS, /* long */
+ TAI_TYPE_ASECONDS, /* long */
+ TAI_TYPE_TIMET, /* time_t */
+ TAI_TYPE_STRUCTTM, /* struct tm */
+ TAI_TYPE_STRUCTTV, /* struct timeval */
+ /* only import */
+ TAI_TYPE_UNIX, /* gettimeofday/time/getthtime */
+ TAI_TYPE_SNTP, /* SNTP network query */
+ TAI_TYPE_RTIME /* time network query */
+ } tai_type_t;
+
+ typedef enum {
+ /* arithmetical operations */
+ TAI_OP_NEG,
+ TAI_OP_ADD,
+ TAI_OP_SUB,
+ TAI_OP_MUL,
+ TAI_OP_DIV,
+ TAI_OP_MOD,
+ /* comparison operations */
+ TAI_OP_G0, /* greater than 0 */
+ TAI_OP_E0, /* equal to 0 */
+ TAI_OP_L0, /* less than 0 */
+ TAI_OP_NE,
+ TAI_OP_EQ,
+ TAI_OP_LT,
+ TAI_OP_LE,
+ TAI_OP_GT,
+ TAI_OP_GE,
+ TAI_OP_SETPREC,
+ TAI_OP_GETPREC
+ } tai_op_t;
+
+ struct tai_st;
+ typedef struct tai_st tai_t;
+
+ tai_rc_t tai_create (tai_t **tai);
+ tai_rc_t tai_destroy (tai_t *tai);
+
+ tai_rc_t tai_import (tai_t *tai, tai_type_t type, ...);
+ tai_rc_t tai_export (tai_t *tai, tai_type_t type, ...);
+
+ tai_rc_t tai_format (tai_t *tai, char *buf_ptr, size_t buf_len, const char *fmt);
+ tai_rc_t tai_parse (tai_t *tai, const char *buf_ptr, size_t buf_len, const char *fmt);
+
+ tai_rc_t tai_op (tai_t *tai, tai_op_t op, ...);
+
+ #endif /* __TAI_H__ */
+
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