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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2016-2018 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_LIBEV_JSON_UTILS_H_
#define _PASSENGER_LIBEV_JSON_UTILS_H_
#include <ev.h>
#include <jsoncpp/json.h>
#include <cstring>
#include <ctime>
#include <StrIntTools/StrIntUtils.h>
#include <SystemTools/SystemTime.h>
namespace Passenger {
using namespace std;
/**
* Encodes the given libev timestamp into a JSON object that
* describes it.
*
* evTimeToJson(ev_now(loop) - 10);
* // {
* // "timestamp": 1424887842,
* // "local": "Wed Feb 25 19:10:34 CET 2015",
* // "relative_timestamp": -10,
* // "relative": "10s ago"
* // }
*/
inline Json::Value
evTimeToJson(ev_tstamp evTime, ev_tstamp evNow, unsigned long long now = 0) {
if (evTime <= 0) {
return Json::Value(Json::nullValue);
}
if (now == 0) {
now = SystemTime::getUsec();
}
Json::Value doc;
unsigned long long wallClockTimeUsec = now
+ (evTime - evNow) * 1000000ull;
time_t wallClockTime = (time_t) (wallClockTimeUsec / 1000000ull);
char buf[32];
size_t len;
ctime_r(&wallClockTime, buf);
len = strlen(buf);
if (len > 0) {
// Get rid of trailing newline
buf[len - 1] = '\0';
}
doc["timestamp"] = wallClockTimeUsec / 1000000.0;
doc["local"] = buf;
doc["relative_timestamp"] = evTime - evNow;
if (evTime > evNow) {
doc["relative"] = distanceOfTimeInWords(evTime, evNow) + " from now";
} else {
doc["relative"] = distanceOfTimeInWords(evTime, evNow) + " ago";
}
return doc;
}
} // namespace Passenger
#endif /* _PASSENGER_LIBEV_JSON_UTILS_H_ */
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