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#ifndef moses_Time_H
#define moses_Time_H
#include <ctime>
#include <iostream>
#include <iomanip>
#include "Util.h"
namespace Moses
{
// A couple of utilities to measure decoding time
/** Start global timer. */
void ResetUserTime();
/** Print out an optional message followed by the current global timer timing. */
void PrintUserTime(const std::string &message);
/**
* Total wall time that the global timer has been in the "running"
* state since it was first "started".
*/
double GetUserTime();
/** Wrapper around time_t to time how long things have been running
* according to walltime. We avoid CPU time since it is less reliable
* in a multi-threaded environment and can spuriously include clock cycles
* used by other threads in the same process.
*/
class Timer
{
friend std::ostream& operator<<(std::ostream& os, Timer& t);
private:
bool running;
bool stopped;
double start_time;
double stop_time;
public:
/***
* 'running' is initially false. A timer needs to be explicitly started
* using 'start'
*/
Timer() : running(false),stopped(false) {
start_time = 0;
}
void start(const char* msg = 0);
void stop(const char* msg = 0);
void check(const char* msg = 0);
double get_elapsed_time() const;
};
}
#endif
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