cef/include/internal/cef_time.h

153 lines
4.6 KiB
C

// Copyright (c) 2011 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS 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 COPYRIGHT
// OWNER OR 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.
#ifndef CEF_INCLUDE_INTERNAL_CEF_TIME_H_
#define CEF_INCLUDE_INTERNAL_CEF_TIME_H_
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <time.h>
#include "include/base/cef_basictypes.h"
#include "include/internal/cef_export.h"
///
/// Represents a wall clock time in UTC. Values are not guaranteed to be
/// monotonically non-decreasing and are subject to large amounts of skew.
/// Time is stored internally as microseconds since the Windows epoch (1601).
///
/// This is equivalent of Chromium `base::Time` (see base/time/time.h).
///
typedef struct _cef_basetime_t {
int64 val;
} cef_basetime_t;
///
/// Time information. Values should always be in UTC.
///
typedef struct _cef_time_t {
///
/// Four or five digit year "2007" (1601 to 30827 on Windows, 1970 to 2038 on
/// 32-bit POSIX)
///
int year;
///
/// 1-based month (values 1 = January, etc.)
///
int month;
///
/// 0-based day of week (0 = Sunday, etc.)
///
int day_of_week;
///
/// 1-based day of month (1-31)
///
int day_of_month;
///
/// Hour within the current day (0-23)
///
int hour;
///
/// Minute within the current hour (0-59)
///
int minute;
///
/// Second within the current minute (0-59 plus leap seconds which may take
/// it up to 60).
///
int second;
///
/// Milliseconds within the current second (0-999)
///
int millisecond;
} cef_time_t;
///
/// Converts cef_time_t to/from time_t. Returns true (1) on success and false
/// (0) on failure.
///
CEF_EXPORT int cef_time_to_timet(const cef_time_t* cef_time, time_t* time);
CEF_EXPORT int cef_time_from_timet(time_t time, cef_time_t* cef_time);
///
/// Converts cef_time_t to/from a double which is the number of seconds since
/// epoch (Jan 1, 1970). Webkit uses this format to represent time. A value of 0
/// means "not initialized". Returns true (1) on success and false (0) on
/// failure.
///
CEF_EXPORT int cef_time_to_doublet(const cef_time_t* cef_time, double* time);
CEF_EXPORT int cef_time_from_doublet(double time, cef_time_t* cef_time);
///
/// Retrieve the current system time. Returns true (1) on success and false (0)
/// on failure.
///
CEF_EXPORT int cef_time_now(cef_time_t* cef_time);
///
/// Retrieve the current system time.
///
CEF_EXPORT cef_basetime_t cef_basetime_now();
///
/// Retrieve the delta in milliseconds between two time values. Returns true (1)
/// on success and false (0) on failure.
//
CEF_EXPORT int cef_time_delta(const cef_time_t* cef_time1,
const cef_time_t* cef_time2,
long long* delta);
///
/// Converts cef_time_t to cef_basetime_t. Returns true (1) on success and
/// false (0) on failure.
///
CEF_EXPORT int cef_time_to_basetime(const cef_time_t* from, cef_basetime_t* to);
///
/// Converts cef_basetime_t to cef_time_t. Returns true (1) on success and
/// false (0) on failure.
///
CEF_EXPORT int cef_time_from_basetime(const cef_basetime_t from,
cef_time_t* to);
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_INTERNAL_CEF_TIME_H_