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#pragma once
#include <chrono>
#include <string>
namespace mbgl {
using Clock = std::chrono::steady_clock;
using Seconds = std::chrono::seconds;
using Milliseconds = std::chrono::milliseconds;
using TimePoint = Clock::time_point;
using Duration = Clock::duration;
// Used to measure second-precision times, such as times gathered from HTTP responses.
using Timestamp = std::chrono::time_point<std::chrono::system_clock, Seconds>;
namespace util {
inline Timestamp now() {
return std::chrono::time_point_cast<Seconds>(std::chrono::system_clock::now());
}
// Returns the RFC1123 formatted date. E.g. "Tue, 04 Nov 2014 02:13:24 GMT"
std::string rfc1123(Timestamp);
// YYYY-mm-dd HH:MM:SS e.g. "2015-11-26 16:11:23"
std::string iso8601(Timestamp);
Timestamp parseTimestamp(const char *);
Timestamp parseTimestamp(const int32_t timestamp);
// C++17 polyfill
template <class Rep, class Period, class = std::enable_if_t<
std::chrono::duration<Rep, Period>::min() < std::chrono::duration<Rep, Period>::zero()>>
constexpr std::chrono::duration<Rep, Period> abs(std::chrono::duration<Rep, Period> d)
{
return d >= d.zero() ? d : -d;
}
} // namespace util
} // namespace mbgl
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