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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: timer.C,v 1.17 2005/02/14 17:06:45 amoll Exp $
#include <BALL/SYSTEM/timer.h>
#ifdef BALL_HAS_UNISTD_H
# include <unistd.h>
#endif
#ifdef BALL_HAS_TIME_H
# include <time.h>
#endif
#ifdef BALL_HAS_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef BALL_HAS_SYS_TIMES_H
# include <sys/times.h>
#endif
#ifdef BALL_HAS_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
# include <windows.h>
# include <sys/timeb.h>
#endif
using std::cout;
using std::endl;
using std::ostream;
namespace BALL
{
LongSize Timer::cpu_speed_ = 0L;
#ifdef BALL_COMPILER_MSVC
PointerSizeUInt Timer::clock_speed_ = 0L;
#endif
Timer::Timer()
: is_running_(false),
last_secs_(0),
last_usecs_(0),
last_user_time_(0),
last_system_time_(0),
current_secs_(0),
current_usecs_(0),
current_user_time_(0),
current_system_time_(0)
{
#ifdef BALL_HAS_SYSCONF
if (cpu_speed_ == 0L)
{
cpu_speed_ = sysconf(_SC_CLK_TCK);
}
#endif
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
if (cpu_speed_ == 0L)
{
LARGE_INTEGER ticks;
if (QueryPerformanceFrequency(&ticks))
{
cpu_speed_ = (PointerSizeUInt) ticks.QuadPart;
}
else
{
cpu_speed_ = 1L;
}
clock_speed_ = CLOCKS_PER_SEC;
}
#endif
}
Timer::Timer(Timer& timer)
: is_running_(timer.is_running_),
last_secs_(timer.last_secs_),
last_usecs_(timer.last_usecs_),
last_user_time_(timer.last_user_time_),
last_system_time_(timer.last_system_time_),
current_secs_(timer.current_secs_),
current_usecs_(timer.current_usecs_),
current_user_time_(timer.current_user_time_),
current_system_time_(timer.current_system_time_)
{
}
Timer::~Timer()
{
}
void Timer::clear()
{
is_running_ = false;
current_secs_ = 0L;
current_usecs_ = 0L;
current_user_time_ = 0L;
current_system_time_ = (clock_t)0;
}
bool Timer::start()
{
if (is_running_)
{
/* tried to start a running timer */
return false;
}
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
LARGE_INTEGER tms;
FILETIME kt,ut,ct,et;
QueryPerformanceCounter(&tms);
HANDLE my_id = GetCurrentProcess();
GetProcessTimes(my_id, &ct, &et, &kt, &ut);
ULARGE_INTEGER kernel_time;
kernel_time.HighPart = kt.dwHighDateTime;
kernel_time.LowPart = kt.dwLowDateTime;
ULARGE_INTEGER user_time;
user_time.HighPart = ut.dwHighDateTime;
user_time.LowPart = ut.dwLowDateTime;
last_secs_ = tms.QuadPart / cpu_speed_;
last_usecs_ = (PointerSizeUInt)((double)(tms.QuadPart - (last_secs_*cpu_speed_)) / (double)(cpu_speed_) * 1000000.0);
last_user_time_ = user_time.QuadPart / 10;
last_system_time_ = kernel_time.QuadPart / 10;
#else
struct tms tms_buffer;
struct timeval timeval_buffer;
struct timezone timezone_buffer;
gettimeofday(&timeval_buffer, &timezone_buffer);
times(&tms_buffer);
last_secs_ = timeval_buffer.tv_sec;
last_usecs_ = timeval_buffer.tv_usec;
last_user_time_ = tms_buffer.tms_utime;
last_system_time_ = tms_buffer.tms_stime;
#endif
is_running_ = true;
return true;
}
bool Timer::stop()
{
if (!is_running_)
{ /* tried to stop a stopped timer */
return false;
}
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
LARGE_INTEGER tms;
QueryPerformanceCounter(&tms);
FILETIME kt,ut,ct,et;
HANDLE my_id=GetCurrentProcess();
GetProcessTimes(my_id,&ct,&et,&kt, &ut);
ULARGE_INTEGER kernel_time;
kernel_time.HighPart = kt.dwHighDateTime;
kernel_time.LowPart = kt.dwLowDateTime;
ULARGE_INTEGER user_time;
user_time.HighPart = ut.dwHighDateTime;
user_time.LowPart = ut.dwLowDateTime;
PointerSizeUInt secs_to_add = tms.QuadPart/cpu_speed_;
current_secs_ += secs_to_add - last_secs_;
PointerSizeUInt usecs_to_add = (PointerSizeUInt)((double)(tms.QuadPart - secs_to_add*cpu_speed_) /(double)(cpu_speed_) * 1000000.0);
current_usecs_ += usecs_to_add - last_usecs_;
current_user_time_ += user_time.QuadPart / 10 - last_user_time_;
current_system_time_ += kernel_time.QuadPart / 10 - last_system_time_;
#else
struct tms tms_buffer;
struct timeval timeval_buffer;
struct timezone timezone_buffer;
gettimeofday(&timeval_buffer, &timezone_buffer);
times(&tms_buffer);
current_secs_ += timeval_buffer.tv_sec - last_secs_;
current_usecs_ += timeval_buffer.tv_usec - last_usecs_;
current_user_time_ += tms_buffer.tms_utime - last_user_time_;
current_system_time_ += tms_buffer.tms_stime - last_system_time_;
#endif
is_running_ = false;
return true;
}
void Timer::reset()
{
if (!is_running_)
{
clear();
}
else
{
stop();
clear();
start();
}
}
/************************************************************************/
/* */
/* getClockTime returns the current amount of real (clock) time */
/* accumulated by this timer. If the timer is stopped, this is just */
/* the total accumulated time. If the timer is running, this is the */
/* accumulated time + the time since the timer was last started. */
/* */
/************************************************************************/
double Timer::getClockTime() const
{
LongIndex elapsed_seconds;
LongIndex elapsed_useconds;
if (!is_running_)
{
/* timer is currently off, so just return accumulated time */
elapsed_seconds = current_secs_;
elapsed_useconds = current_usecs_;
}
else
{
/* timer is currently running, so add the elapsed time since */
/* the timer was last started to the accumulated time */
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
LARGE_INTEGER tms;
if (QueryPerformanceCounter(&tms))
{
PointerSizeUInt secs_to_add = tms.QuadPart / cpu_speed_;
elapsed_seconds = current_secs_ + secs_to_add - last_secs_;
PointerSizeUInt usecs_to_add = (PointerSizeUInt)((double)(tms.QuadPart - secs_to_add * cpu_speed_) /(double)(cpu_speed_) * 1000000.0);
elapsed_useconds = current_usecs_ + usecs_to_add - last_usecs_;
}
#else
struct timeval timeval_buffer;
struct timezone timezone_buffer;
gettimeofday(&timeval_buffer, &timezone_buffer);
elapsed_seconds = current_secs_ + timeval_buffer.tv_sec - last_secs_;
elapsed_useconds = current_usecs_ + timeval_buffer.tv_usec - last_usecs_;
#endif
}
/* Adjust for the fact that the useconds may be negative. */
/* If they are, take away 1 second and add 1 million */
/* microseconds until they are positive. */
while (elapsed_useconds < 0L)
{
elapsed_useconds += 1000000L;
elapsed_seconds--;
}
/* convert into floating point number of seconds */
return (double)((double)elapsed_seconds + (double)elapsed_useconds / 1000000.0);
}
/************************************************************************/
/* */
/* getUserTime reports the current amount of user cpu time */
/* accumulated by this Timer. If the timer is currently off, */
/* this is just the accumulated time. If the Timer is running, this */
/* is the accumulated time plust the time since the timer was last */
/* started. */
/* */
/************************************************************************/
double Timer::getUserTime() const
{
double temp_value;
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
FILETIME kt,ut,ct,et;
#else
struct tms tms_buffer;
#endif
if (!is_running_)
{
/* timer is off, just return accumulated time */
temp_value = (double)current_user_time_;
}
else
{
/* timer is on, add current running time to accumulated time */
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
HANDLE my_id=GetCurrentProcess();
GetProcessTimes(my_id,&ct,&et,&kt,&ut);
ULARGE_INTEGER kernel_time;
kernel_time.HighPart = kt.dwHighDateTime;
kernel_time.LowPart = kt.dwLowDateTime;
ULARGE_INTEGER user_time;
user_time.HighPart = ut.dwHighDateTime;
user_time.LowPart = ut.dwLowDateTime;
temp_value = (double)(current_user_time_ + user_time.QuadPart / 10.0 - last_user_time_);
#else
times(&tms_buffer);
temp_value = (double)(current_user_time_ + tms_buffer.tms_utime - last_user_time_);
#endif
}
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
return (double)(temp_value / 1000000.0);
#else
/* convert from clock ticks to seconds using the */
/* cpu-speed value obtained in the constructor */
return (double)(temp_value / (double)cpu_speed_);
#endif
}
/************************************************************************/
/* */
/* system_time reports the current amount of system cpu time */
/* accumulated by this Timer. If the timer is currently off, */
/* this is just the accumulated time. If the Timer is running, this */
/* is the accumulated time plus the time since the timer was last */
/* started. */
/* */
/************************************************************************/
double Timer::getSystemTime() const
{
double temp_value = 0.0;
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
//struct tms tms_buffer;
FILETIME kt,ut,ct,et;
#endif
if (!is_running_)
{
/* timer is off, just return accumulated time */
temp_value = (double)current_system_time_;
}
else
{
/* timer is on, return accumulated plus current */
#ifdef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
//times(&tms_buffer);
HANDLE my_id=GetCurrentProcess();
GetProcessTimes(my_id,&ct,&et,&kt,&ut);
ULARGE_INTEGER kernel_time;
kernel_time.HighPart = kt.dwHighDateTime;
kernel_time.LowPart = kt.dwLowDateTime;
ULARGE_INTEGER user_time;
user_time.HighPart = ut.dwHighDateTime;
user_time.LowPart = ut.dwLowDateTime;
temp_value = (double)((double)current_system_time_ + kernel_time.QuadPart / 10.0 - (double)last_system_time_);
#endif
}
/* convert from clock ticks to seconds using the */
/* cpu-speed value obtained by the constructor */
#ifndef BALL_HAS_WINDOWS_PERFORMANCE_COUNTER
return (double)(temp_value / 1000000.0);
#else
return 0.0;
#endif
}
Timer& Timer::operator = (const Timer& timer)
{
if (this == &timer)
{
return *this;
}
is_running_ = timer.is_running_;
last_secs_ = timer.last_secs_;
last_usecs_ = timer.last_usecs_;
last_user_time_ = timer.last_user_time_;
last_system_time_ = timer.last_system_time_;
current_secs_ = timer.current_secs_;
current_usecs_ = timer.current_usecs_;
current_user_time_ = timer.current_user_time_;
current_system_time_ = timer.current_system_time_;
return *this;
}
bool Timer::operator == (const Timer& timer) const
{
return (last_secs_ == timer.last_secs_
&& last_usecs_ == timer.last_usecs_
&& last_user_time_ == timer.last_user_time_
&& last_system_time_ == timer.last_system_time_
&& current_secs_ == timer.current_secs_
&& current_usecs_ == timer.current_usecs_
&& current_user_time_ == timer.current_user_time_
&& current_system_time_ == timer.current_system_time_);
}
void Timer::dump(ostream& s, Size depth) const
{
BALL_DUMP_STREAM_PREFIX(s);
BALL_DUMP_DEPTH(s, depth);
BALL_DUMP_CLASS_HEADER(s, Timer, this);
BALL_DUMP_DEPTH(s, depth);
s << "CPU speed: " << cpu_speed_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "is running: " << (is_running_ ? "true" : "false") << endl;
BALL_DUMP_DEPTH(s, depth);
s << "last clock seconds: " << last_secs_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "last user seconds: " << last_usecs_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "last user time: " << last_user_time_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "last system time: " << last_system_time_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "current clock seconds: " << current_secs_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "current user seconds: " << current_usecs_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "current user time: " << current_user_time_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "current system time: " << current_system_time_ << endl;
BALL_DUMP_DEPTH(s, depth);
s << "effective clock time: " << getClockTime() << endl;
BALL_DUMP_DEPTH(s, depth);
s << "effective user time: " << getUserTime() << endl;
BALL_DUMP_DEPTH(s, depth);
s << "effective system time: " << getSystemTime() << endl;
BALL_DUMP_DEPTH(s, depth);
s << "effective CPU time: " << getCPUTime() << endl;
BALL_DUMP_STREAM_SUFFIX(s);
}
# ifdef BALL_NO_INLINE_FUNCTIONS
# include <BALL/SYSTEM/timer.iC>
# endif
} // namespace BALL
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