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108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_UTIL_TIME_H
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#define BITCOIN_UTIL_TIME_H
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#include <compat.h>
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#include <chrono>
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#include <stdint.h>
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#include <string>
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using namespace std::chrono_literals;
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using SteadyClock = std::chrono::steady_clock;
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using SteadySeconds = std::chrono::time_point<std::chrono::steady_clock, std::chrono::seconds>;
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using SteadyMilliseconds = std::chrono::time_point<std::chrono::steady_clock, std::chrono::milliseconds>;
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using SteadyMicroseconds = std::chrono::time_point<std::chrono::steady_clock, std::chrono::microseconds>;
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void UninterruptibleSleep(const std::chrono::microseconds& n);
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/**
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* Helper to count the seconds of a duration.
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*
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* All durations should be using std::chrono and calling this should generally
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* be avoided in code. Though, it is still preferred to an inline t.count() to
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* protect against a reliance on the exact type of t.
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*
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* This helper is used to convert durations before passing them over an
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* interface that doesn't support std::chrono (e.g. RPC, debug log, or the GUI)
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*/
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constexpr int64_t count_seconds(std::chrono::seconds t) { return t.count(); }
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constexpr int64_t count_milliseconds(std::chrono::milliseconds t) { return t.count(); }
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constexpr int64_t count_microseconds(std::chrono::microseconds t) { return t.count(); }
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using SecondsDouble = std::chrono::duration<double, std::chrono::seconds::period>;
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/**
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* Helper to count the seconds in any std::chrono::duration type
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*/
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inline double CountSecondsDouble(SecondsDouble t) { return t.count(); }
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/**
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* DEPRECATED
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* Use either GetTimeSeconds (not mockable) or GetTime<T> (mockable)
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*/
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int64_t GetTime();
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/** Returns the system time (not mockable) */
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int64_t GetTimeMillis();
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/** Returns the system time (not mockable) */
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int64_t GetTimeMicros();
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/** Returns the system time (not mockable) */
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int64_t GetTimeSeconds(); // Like GetTime(), but not mockable
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/**
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* DEPRECATED
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* Use SetMockTime with chrono type
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*
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* @param[in] nMockTimeIn Time in seconds.
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*/
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void SetMockTime(int64_t nMockTimeIn);
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/** For testing. Set e.g. with the setmocktime rpc, or -mocktime argument */
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void SetMockTime(std::chrono::seconds mock_time_in);
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/** For testing */
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std::chrono::seconds GetMockTime();
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/** Return system time (or mocked time, if set) */
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template <typename T>
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T GetTime();
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/**
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* Return the current time point cast to the given precicion. Only use this
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* when an exact precicion is needed, otherwise use T::clock::now() directly.
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*/
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template <typename T>
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T Now()
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{
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return std::chrono::time_point_cast<typename T::duration>(T::clock::now());
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}
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/**
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* ISO 8601 formatting is preferred. Use the FormatISO8601{DateTime,Date,Time}
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* helper functions if possible.
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*/
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std::string FormatISO8601DateTime(int64_t nTime);
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std::string FormatISO8601Date(int64_t nTime);
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std::string FormatISO8601Time(int64_t nTime);
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int64_t ParseISO8601DateTime(const std::string& str);
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/**
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* Convert milliseconds to a struct timeval for e.g. select.
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*/
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struct timeval MillisToTimeval(int64_t nTimeout);
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/**
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* Convert milliseconds to a struct timeval for e.g. select.
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*/
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struct timeval MillisToTimeval(std::chrono::milliseconds ms);
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/** Sanity check epoch match normal Unix epoch */
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bool ChronoSanityCheck();
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#endif // BITCOIN_UTIL_TIME_H
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