/usr/include/oce/OSD_Chronometer.hxx is in liboce-foundation-dev 0.18.2-2build1.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _OSD_Chronometer_HeaderFile
#define _OSD_Chronometer_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Real.hxx>
#include <Standard_OStream.hxx>
//! This class measures CPU time (both user and system) consumed
//! by current process or thread. The chronometer can be started
//! and stopped multiple times, and measures cumulative time.
//!
//! If only the thread is measured, calls to Stop() and Show()
//! must occur from the same thread where Start() was called
//! (unless chronometer is stopped); otherwise measurement will
//! yield false values.
class OSD_Chronometer
{
public:
DEFINE_STANDARD_ALLOC
//! Initializes a stopped Chronometer.
//!
//! If ThisThreadOnly is True, measured CPU time will account
//! time of the current thread only; otherwise CPU of the
//! process (all threads, and completed children) is measured.
Standard_EXPORT OSD_Chronometer(const Standard_Boolean ThisThreadOnly = Standard_False);
Standard_EXPORT virtual ~OSD_Chronometer();
//! Stops and Reinitializes the Chronometer.
Standard_EXPORT virtual void Reset() ;
//! Stops the Chronometer.
Standard_EXPORT virtual void Stop() ;
//! Starts (after Create or Reset) or restarts (after Stop)
//! the chronometer.
Standard_EXPORT virtual void Start() ;
//! Shows the current CPU user and system time on the
//! standard output stream <cout>.
//! The chronometer can be running (laps Time) or stopped.
Standard_EXPORT virtual void Show() const;
//! Shows the current CPU user and system time on the output
//! stream <os>.
//! The chronometer can be running (laps Time) or stopped.
Standard_EXPORT virtual void Show (Standard_OStream& os) const;
//! Returns the current CPU user time in a variable.
//! The chronometer can be running (laps Time) or stopped.
Standard_EXPORT void Show (Standard_Real& theUserSeconds) const;
//! Returns the current CPU user and system time in variables.
//! The chronometer can be running (laps Time) or stopped.
Standard_EXPORT void Show (Standard_Real& theUserSeconds, Standard_Real& theSystemSeconds) const;
//! Returns CPU time (user and system) consumed by the current
//! process since its start, in seconds. The actual precision of
//! the measurement depends on granularity provided by the system,
//! and is platform-specific.
Standard_EXPORT static void GetProcessCPU (Standard_Real& UserSeconds, Standard_Real& SystemSeconds) ;
//! Returns CPU time (user and system) consumed by the current
//! thread since its start. Note that this measurement is
//! platform-specific, as threads are implemented and managed
//! differently on different platforms and CPUs.
Standard_EXPORT static void GetThreadCPU (Standard_Real& UserSeconds, Standard_Real& SystemSeconds) ;
protected:
Standard_Boolean Stopped;
private:
Standard_Boolean ThreadOnly;
Standard_Real Start_user;
Standard_Real Start_sys;
Standard_Real Cumul_user;
Standard_Real Cumul_sys;
};
#endif // _OSD_Chronometer_HeaderFile
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