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/*
* This file is part of the source code of the software program
* Vampire. It is protected by applicable
* copyright laws.
*
* This source code is distributed under the licence found here
* https://vprover.github.io/license.html
* and in the source directory
*/
/**
* @file Timer.hpp
* Defines class Timer
* @since 12/04/2006
*/
#ifndef __Timer__
#define __Timer__
#include <ostream>
#include <string>
namespace Lib {
namespace Timer {
// (re)initialise the timer - from this point onwards:
// 1. resource limits are enforced, unless `disableLimitEnforcement();`
// 2. elapsed time (instructions) data should be live
//
// should be called exactly once per process as it internally spawns a std::thread
void reinitialise(bool tryInitInstructionLimiting=true);
// disables exit on resource out: call when a proof has been found!
// permanently disabled per-process
// blocks if a resource limit was already reached and we are exiting
void disableLimitEnforcement();
// reset EXIT_LOCK for API usage (allows multiple proofs on different threads)
// must be called between independent proofs when using Vampire as a library
void resetLimitEnforcement();
// reset the start time so elapsed time is measured from now
void resetStartTime();
// elapsed time
long elapsedMilliseconds();
inline long elapsedDeciseconds()
{ return elapsedMilliseconds() / 100; }
// output times in various formats (?!)
void printMSString(std::ostream &, int);
std::string msToSecondsString(int);
// instruction limiting stuff below - no-op if !VAMPIRE_PERF_EXISTS
// whether instruction limiting succeeded
bool instructionLimitingInPlace();
// elapsed instructions
long elapsedMegaInstructions();
// make sure that the instruction data is as up-to-date as possible
// otherwise may be (slightly) stale
void updateInstructionCount();
};
}
#endif /* __Timer__ */