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// @file time_support.h
/* Copyright 2010 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#pragma once
#include <iosfwd>
#include <ctime>
#include <string>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <boost/thread/xtime.hpp>
#include <boost/version.hpp>
#include "mongo/base/status_with.h"
#include "mongo/client/export_macros.h"
namespace mongo {
typedef boost::posix_time::milliseconds Milliseconds;
typedef boost::posix_time::seconds Seconds;
void time_t_to_Struct(time_t t, struct tm * buf , bool local = false );
std::string time_t_to_String(time_t t);
std::string time_t_to_String_short(time_t t);
struct Date_t {
// TODO: make signed (and look for related TODO's)
unsigned long long millis;
Date_t(): millis(0) {}
Date_t(unsigned long long m): millis(m) {}
operator unsigned long long&() { return millis; }
operator const unsigned long long&() const { return millis; }
void toTm (tm *buf);
std::string toString() const;
time_t toTimeT() const;
int64_t asInt64() const {
return static_cast<int64_t>(millis);
}
bool isFormatable() const;
};
// uses ISO 8601 dates without trailing Z
// colonsOk should be false when creating filenames
std::string terseCurrentTime(bool colonsOk=true);
/**
* Formats "time" according to the ISO 8601 extended form standard, including date,
* and time, in the UTC timezone.
*
* Sample format: "2013-07-23T18:42:14Z"
*/
std::string timeToISOString(time_t time);
/**
* Formats "date" according to the ISO 8601 extended form standard, including date,
* and time with milliseconds decimal component, in the UTC timezone.
*
* Sample format: "2013-07-23T18:42:14.072Z"
*/
std::string dateToISOStringUTC(Date_t date);
/**
* Formats "date" according to the ISO 8601 extended form standard, including date,
* and time with milliseconds decimal component, in the local timezone.
*
* Sample format: "2013-07-23T18:42:14.072-05:00"
*/
std::string dateToISOStringLocal(Date_t date);
/**
* Formats "date" in fixed width in the local time zone.
*
* Sample format: "Wed Oct 31 13:34:47.996"
*/
std::string dateToCtimeString(Date_t date);
/**
* Parses a Date_t from an ISO 8601 std::string representation.
*
* Sample formats: "2013-07-23T18:42:14.072-05:00"
* "2013-07-23T18:42:14.072Z"
*
* Local times are currently not supported.
*/
StatusWith<Date_t> dateFromISOString(const StringData& dateString);
/**
* Like dateToISOStringUTC, except outputs to a std::ostream.
*/
void outputDateAsISOStringUTC(std::ostream& os, Date_t date);
/**
* Like dateToISOStringLocal, except outputs to a std::ostream.
*/
void outputDateAsISOStringLocal(std::ostream& os, Date_t date);
/**
* Like dateToCtimeString, except outputs to a std::ostream.
*/
void outputDateAsCtime(std::ostream& os, Date_t date);
boost::gregorian::date currentDate();
// parses time of day in "hh:mm" format assuming 'hh' is 00-23
bool toPointInTime( const std::string& str , boost::posix_time::ptime* timeOfDay );
MONGO_CLIENT_API void sleepsecs(int s);
MONGO_CLIENT_API void sleepmillis(long long ms);
MONGO_CLIENT_API void sleepmicros(long long micros);
class Backoff {
public:
Backoff( int maxSleepMillis, int resetAfter ) :
_maxSleepMillis( maxSleepMillis ),
_resetAfterMillis( maxSleepMillis + resetAfter ), // Don't reset < the max sleep
_lastSleepMillis( 0 ),
_lastErrorTimeMillis( 0 )
{}
void nextSleepMillis();
/**
* testing-only function. used in dbtests/basictests.cpp
*/
int getNextSleepMillis(int lastSleepMillis, unsigned long long currTimeMillis,
unsigned long long lastErrorTimeMillis) const;
private:
// Parameters
int _maxSleepMillis;
int _resetAfterMillis;
// Last sleep information
int _lastSleepMillis;
unsigned long long _lastErrorTimeMillis;
};
// DO NOT TOUCH except for testing
void jsTimeVirtualSkew( long long skew );
void jsTimeVirtualThreadSkew( long long skew );
long long getJSTimeVirtualThreadSkew();
/** Date_t is milliseconds since epoch */
Date_t jsTime();
/** warning this will wrap */
unsigned curTimeMicros();
unsigned long long curTimeMicros64();
unsigned long long curTimeMillis64();
// these are so that if you use one of them compilation will fail
char *asctime(const struct tm *tm);
char *ctime(const time_t *timep);
struct tm *gmtime(const time_t *timep);
struct tm *localtime(const time_t *timep);
#if defined(MONGO_BOOST_TIME_UTC_HACK) || (BOOST_VERSION >= 105000)
#define MONGO_BOOST_TIME_UTC boost::TIME_UTC_
#else
#define MONGO_BOOST_TIME_UTC boost::TIME_UTC
#endif
} // namespace mongo
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