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// **********************************************************************
//
// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceUtil/DisableWarnings.h>
#include <IceUtil/Exception.h>
#include <IceUtil/Time.h>
#include <iomanip>
#ifdef _WIN32
# include <sys/timeb.h>
# include <time.h>
#else
# include <sys/time.h>
#endif
#ifdef __APPLE__
# include <mach/mach.h>
# include <mach/mach_time.h>
#endif
using namespace IceUtil;
#ifdef _WIN32
namespace
{
double frequency = -1.0;
//
// Initialize the frequency
//
class InitializeFrequency
{
public:
InitializeFrequency()
{
//
// Get the frequency of performance counters. We also make a call to
// QueryPerformanceCounter to ensure it works. If it fails or if the
// call to QueryPerformanceFrequency fails, the frequency will remain
// set to -1.0 and ftime will be used instead.
//
Int64 v;
if(QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER*>(&v)))
{
if(QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER*>(&v)))
{
frequency = static_cast<double>(v);
}
}
}
};
InitializeFrequency frequencyInitializer;
}
#endif
#ifdef __APPLE__
namespace
{
double machMultiplier = 1.0;
class InitializeTime
{
public:
InitializeTime()
{
mach_timebase_info_data_t initTimeBase = { 0, 0 };
mach_timebase_info(&initTimeBase);
machMultiplier = static_cast<double>(initTimeBase.numer) / initTimeBase.denom / ICE_INT64(1000);
}
};
InitializeTime initializeTime;
}
#endif
Time::Time() :
_usec(0)
{
}
Time
IceUtil::Time::now(Clock clock)
{
if(clock == Realtime)
{
#ifdef _WIN32
struct _timeb tb;
_ftime(&tb);
return Time(static_cast<Int64>(tb.time) * ICE_INT64(1000000) + tb.millitm * 1000);
#else
struct timeval tv;
if(gettimeofday(&tv, 0) < 0)
{
assert(0);
throw SyscallException(__FILE__, __LINE__, errno);
}
return Time(tv.tv_sec * ICE_INT64(1000000) + tv.tv_usec);
#endif
}
else // Monotonic
{
#if defined(_WIN32)
if(frequency > 0.0)
{
Int64 count;
if(!QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER*>(&count)))
{
assert(0);
throw SyscallException(__FILE__, __LINE__, GetLastError());
}
return Time(static_cast<Int64>(count / frequency * 1000000.0));
}
else
{
struct _timeb tb;
_ftime(&tb);
return Time(static_cast<Int64>(tb.time) * ICE_INT64(1000000) + tb.millitm * 1000);
}
#elif defined(__hpux)
//
// HP does not support CLOCK_MONOTONIC
//
struct timeval tv;
if(gettimeofday(&tv, 0) < 0)
{
assert(0);
throw SyscallException(__FILE__, __LINE__, errno);
}
return Time(tv.tv_sec * ICE_INT64(1000000) + tv.tv_usec);
#elif defined(__APPLE__)
return Time(mach_absolute_time() * machMultiplier);
#else
struct timespec ts;
if(clock_gettime(CLOCK_MONOTONIC, &ts) < 0)
{
assert(0);
throw SyscallException(__FILE__, __LINE__, errno);
}
return Time(ts.tv_sec * ICE_INT64(1000000) + ts.tv_nsec / ICE_INT64(1000));
#endif
}
}
Time
IceUtil::Time::seconds(Int64 t)
{
return Time(t * ICE_INT64(1000000));
}
Time
IceUtil::Time::milliSeconds(Int64 t)
{
return Time(t * ICE_INT64(1000));
}
Time
IceUtil::Time::microSeconds(Int64 t)
{
return Time(t);
}
Time
IceUtil::Time::secondsDouble(double t)
{
return Time(Int64(t * 1000000));
}
Time
IceUtil::Time::milliSecondsDouble(double t)
{
return Time(Int64(t * 1000));
}
Time
IceUtil::Time::microSecondsDouble(double t)
{
return Time(Int64(t));
}
#ifndef _WIN32
IceUtil::Time::operator timeval() const
{
timeval tv;
tv.tv_sec = static_cast<long>(_usec / 1000000);
tv.tv_usec = static_cast<long>(_usec % 1000000);
return tv;
}
#endif
Int64
IceUtil::Time::toSeconds() const
{
return _usec / 1000000;
}
Int64
IceUtil::Time::toMilliSeconds() const
{
return _usec / 1000;
}
Int64
IceUtil::Time::toMicroSeconds() const
{
return _usec;
}
double
IceUtil::Time::toSecondsDouble() const
{
return _usec / 1000000.0;
}
double
IceUtil::Time::toMilliSecondsDouble() const
{
return _usec / 1000.0;
}
double
IceUtil::Time::toMicroSecondsDouble() const
{
return static_cast<double>(_usec);
}
std::string
IceUtil::Time::toDateTime() const
{
time_t time = static_cast<long>(_usec / 1000000);
struct tm* t;
#ifdef _WIN32
t = localtime(&time);
#else
struct tm tr;
localtime_r(&time, &tr);
t = &tr;
#endif
char buf[32];
strftime(buf, sizeof(buf), "%x %H:%M:%S", t);
std::ostringstream os;
os << buf << ".";
os.fill('0');
os.width(3);
os << static_cast<long>(_usec % 1000000 / 1000);
return os.str();
}
std::string
IceUtil::Time::toDuration() const
{
Int64 usecs = _usec % 1000000;
Int64 secs = _usec / 1000000 % 60;
Int64 mins = _usec / 1000000 / 60 % 60;
Int64 hours = _usec / 1000000 / 60 / 60 % 24;
Int64 days = _usec / 1000000 / 60 / 60 / 24;
using namespace std;
ostringstream os;
if(days != 0)
{
os << days << "d ";
}
os << setfill('0') << setw(2) << hours << ":" << setw(2) << mins << ":" << setw(2) << secs;
if(usecs != 0)
{
os << "." << setw(3) << (usecs / 1000);
}
return os.str();
}
Time::Time(Int64 usec) :
_usec(usec)
{
}
std::ostream&
IceUtil::operator<<(std::ostream& out, const Time& tm)
{
return out << tm.toMicroSeconds() / 1000000.0;
}
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