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cec629972b
Emmanuele suggested adding G_GNUC_WARN_UNUSED_RESULT to all of the g_date_time_add_* functions to help deal with the situation where people may mistakenly believe that these functions are inplace modifiers.
217 lines
11 KiB
C
217 lines
11 KiB
C
/*
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* Copyright (C) 2009-2010 Christian Hergert <chris@dronelabs.com>
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* Copyright © 2010 Codethink Limited
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* licence, or (at your option) any later version.
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*
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* This is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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* USA.
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*
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* Authors: Christian Hergert <chris@dronelabs.com>
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* Thiago Santos <thiago.sousa.santos@collabora.co.uk>
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* Emmanuele Bassi <ebassi@linux.intel.com>
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* Ryan Lortie <desrt@desrt.ca>
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*/
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#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
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#error "Only <glib.h> can be included directly."
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#endif
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#ifndef __G_DATE_TIME_H__
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#define __G_DATE_TIME_H__
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#include <glib/gtimezone.h>
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G_BEGIN_DECLS
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/**
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* G_TIME_SPAN_DAY:
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*
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* Evaluates to a time span of one day.
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*
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* Since: 2.26
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*/
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#define G_TIME_SPAN_DAY (G_GINT64_CONSTANT (86400000000))
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/**
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* G_TIME_SPAN_HOUR:
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*
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* Evaluates to a time span of one hour.
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*
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* Since: 2.26
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*/
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#define G_TIME_SPAN_HOUR (G_GINT64_CONSTANT (3600000000))
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/**
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* G_TIME_SPAN_MINUTE:
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*
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* Evaluates to a time span of one minute.
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*
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* Since: 2.26
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*/
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#define G_TIME_SPAN_MINUTE (G_GINT64_CONSTANT (60000000))
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/**
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* G_TIME_SPAN_SECOND:
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*
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* Evaluates to a time span of one second.
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*
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* Since: 2.26
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*/
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#define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT (1000000))
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/**
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* G_TIME_SPAN_MILLISECOND:
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*
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* Evaluates to a time span of one millisecond.
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*
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* Since: 2.26
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*/
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#define G_TIME_SPAN_MILLISECOND (G_GINT64_CONSTANT (1000))
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/**
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* GTimeSpan:
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*
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* A value representing an interval of time, in microseconds.
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*
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* Since: 2.26
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*/
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typedef gint64 GTimeSpan;
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/**
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* GDateTime:
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*
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* <structname>GDateTime</structname> is an opaque structure whose members
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* cannot be accessed directly.
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*
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* Since: 2.26
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*/
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typedef struct _GDateTime GDateTime;
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void g_date_time_unref (GDateTime *datetime);
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GDateTime * g_date_time_ref (GDateTime *datetime);
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GDateTime * g_date_time_new_now (GTimeZone *tz);
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GDateTime * g_date_time_new_now_local (void);
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GDateTime * g_date_time_new_now_utc (void);
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GDateTime * g_date_time_new_from_unix_local (gint64 t);
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GDateTime * g_date_time_new_from_unix_utc (gint64 t);
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GDateTime * g_date_time_new_from_timeval_local (const GTimeVal *tv);
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GDateTime * g_date_time_new_from_timeval_utc (const GTimeVal *tv);
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GDateTime * g_date_time_new (GTimeZone *tz,
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gint year,
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gint month,
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gint day,
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gint hour,
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gint minute,
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gdouble seconds);
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GDateTime * g_date_time_new_local (gint year,
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gint month,
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gint day,
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gint hour,
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gint minute,
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gdouble seconds);
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GDateTime * g_date_time_new_utc (gint year,
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gint month,
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gint day,
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gint hour,
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gint minute,
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gdouble seconds);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add (GDateTime *datetime,
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GTimeSpan timespan);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_years (GDateTime *datetime,
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gint years);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_months (GDateTime *datetime,
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gint months);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_weeks (GDateTime *datetime,
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gint weeks);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_days (GDateTime *datetime,
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gint days);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_hours (GDateTime *datetime,
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gint hours);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_minutes (GDateTime *datetime,
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gint minutes);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_seconds (GDateTime *datetime,
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gdouble seconds);
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G_GNUC_WARN_UNUSED_RESULT
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GDateTime * g_date_time_add_full (GDateTime *datetime,
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gint years,
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gint months,
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gint days,
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gint hours,
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gint minutes,
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gdouble seconds);
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gint g_date_time_compare (gconstpointer dt1,
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gconstpointer dt2);
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GTimeSpan g_date_time_difference (GDateTime *begin,
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GDateTime *end);
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guint g_date_time_hash (gconstpointer datetime);
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gboolean g_date_time_equal (gconstpointer dt1,
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gconstpointer dt2);
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void g_date_time_get_ymd (GDateTime *datetime,
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gint *year,
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gint *month,
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gint *day);
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gint g_date_time_get_year (GDateTime *datetime);
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gint g_date_time_get_month (GDateTime *datetime);
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gint g_date_time_get_day_of_month (GDateTime *datetime);
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gint g_date_time_get_week_of_year (GDateTime *datetime);
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gint g_date_time_get_day_of_week (GDateTime *datetime);
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gint g_date_time_get_day_of_year (GDateTime *datetime);
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gint g_date_time_get_hour (GDateTime *datetime);
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gint g_date_time_get_minute (GDateTime *datetime);
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gint g_date_time_get_second (GDateTime *datetime);
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gint g_date_time_get_microsecond (GDateTime *datetime);
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gdouble g_date_time_get_seconds (GDateTime *datetime);
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gint64 g_date_time_to_unix (GDateTime *datetime);
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gboolean g_date_time_to_timeval (GDateTime *datetime,
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GTimeVal *tv);
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GTimeSpan g_date_time_get_utc_offset (GDateTime *datetime);
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const gchar * g_date_time_get_timezone_abbreviation (GDateTime *datetime);
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gboolean g_date_time_is_daylight_savings (GDateTime *datetime);
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GDateTime * g_date_time_to_timezone (GDateTime *datetime,
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GTimeZone *tz);
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GDateTime * g_date_time_to_local (GDateTime *datetime);
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GDateTime * g_date_time_to_utc (GDateTime *datetime);
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gchar * g_date_time_format (GDateTime *datetime,
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const gchar *format) G_GNUC_MALLOC;
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G_END_DECLS
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#endif /* __G_DATE_TIME_H__ */
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