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git-svn-id: http://moon:8086/svn/software/trunk/projects/RBM@14 b431acfa-c32f-4a4a-93f1-934dc6c82436
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jens
2014-09-24 17:21:29 +00:00
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JuceLibraryCode/modules/juce_core/time/juce_PerformanceCounter.cpp
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
static void appendToFile (const File& f, const String& s)
{
if (f.getFullPathName().isNotEmpty())
{
FileOutputStream out (f);
if (! out.failedToOpen())
out << s << newLine;
}
}
PerformanceCounter::PerformanceCounter (const String& name, int runsPerPrintout, const File& loggingFile)
: runsPerPrint (runsPerPrintout), startTime (0), outputFile (loggingFile)
{
stats.name = name;
appendToFile (outputFile, "**** Counter for \"" + name + "\" started at: " + Time::getCurrentTime().toString (true, true));
}
PerformanceCounter::~PerformanceCounter()
{
printStatistics();
}
PerformanceCounter::Statistics::Statistics() noexcept
: averageSeconds(), maximumSeconds(), minimumSeconds(), totalSeconds(), numRuns()
{
}
void PerformanceCounter::Statistics::clear() noexcept
{
averageSeconds = maximumSeconds = minimumSeconds = totalSeconds = 0;
numRuns = 0;
}
void PerformanceCounter::Statistics::addResult (double elapsed) noexcept
{
if (numRuns == 0)
{
maximumSeconds = elapsed;
minimumSeconds = elapsed;
}
else
{
maximumSeconds = jmax (maximumSeconds, elapsed);
minimumSeconds = jmin (minimumSeconds, elapsed);
}
++numRuns;
totalSeconds += elapsed;
}
static String timeToString (double secs)
{
return String ((int64) (secs * (secs < 0.01 ? 1000000.0 : 1000.0) + 0.5))
+ (secs < 0.01 ? " microsecs" : " millisecs");
}
String PerformanceCounter::Statistics::toString() const
{
MemoryOutputStream s;
s << "Performance count for \"" << name << "\" over " << numRuns << " run(s)" << newLine
<< "Average = " << timeToString (averageSeconds)
<< ", minimum = " << timeToString (minimumSeconds)
<< ", maximum = " << timeToString (maximumSeconds)
<< ", total = " << timeToString (totalSeconds);
return s.toString();
}
void PerformanceCounter::start() noexcept
{
startTime = Time::getHighResolutionTicks();
}
bool PerformanceCounter::stop()
{
stats.addResult (Time::highResolutionTicksToSeconds (Time::getHighResolutionTicks() - startTime));
if (stats.numRuns < runsPerPrint)
return false;
printStatistics();
return true;
}
void PerformanceCounter::printStatistics()
{
const String desc (getStatisticsAndReset().toString());
Logger::outputDebugString (desc);
appendToFile (outputFile, desc);
}
PerformanceCounter::Statistics PerformanceCounter::getStatisticsAndReset()
{
Statistics s (stats);
stats.clear();
if (s.numRuns > 0)
s.averageSeconds = s.totalSeconds / s.numRuns;
return s;
}
JuceLibraryCode/modules/juce_core/time/juce_PerformanceCounter.h
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
#ifndef JUCE_PERFORMANCECOUNTER_H_INCLUDED
#define JUCE_PERFORMANCECOUNTER_H_INCLUDED
//==============================================================================
/** A timer for measuring performance of code and dumping the results to a file.
e.g. @code
PerformanceCounter pc ("fish", 50, "/temp/myfishlog.txt");
for (;;)
{
pc.start();
doSomethingFishy();
pc.stop();
}
@endcode
In this example, the time of each period between calling start/stop will be
measured and averaged over 50 runs, and the results printed to a file
every 50 times round the loop.
*/
class JUCE_API PerformanceCounter
{
public:
//==============================================================================
/** Creates a PerformanceCounter object.
@param counterName the name used when printing out the statistics
@param runsPerPrintout the number of start/stop iterations before calling
printStatistics()
@param loggingFile a file to dump the results to - if this is File::nonexistent,
the results are just written to the debugger output
*/
PerformanceCounter (const String& counterName,
int runsPerPrintout = 100,
const File& loggingFile = File());
/** Destructor. */
~PerformanceCounter();
//==============================================================================
/** Starts timing.
@see stop
*/
void start() noexcept;
/** Stops timing and prints out the results.
The number of iterations before doing a printout of the
results is set in the constructor.
@see start
*/
bool stop();
/** Dumps the current metrics to the debugger output and to a file.
As well as using Logger::outputDebugString to print the results,
this will write then to the file specified in the constructor (if
this was valid).
*/
void printStatistics();
/** Holds the current statistics. */
struct Statistics
{
Statistics() noexcept;
void clear() noexcept;
String toString() const;
void addResult (double elapsed) noexcept;
String name;
double averageSeconds;
double maximumSeconds;
double minimumSeconds;
double totalSeconds;
int64 numRuns;
};
/** Returns a copy of the current stats, and resets the internal counter. */
Statistics getStatisticsAndReset();
private:
//==============================================================================
Statistics stats;
int64 runsPerPrint, startTime;
File outputFile;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PerformanceCounter)
};
#endif // JUCE_PERFORMANCECOUNTER_H_INCLUDED
JuceLibraryCode/modules/juce_core/time/juce_RelativeTime.cpp
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
RelativeTime::RelativeTime (const double secs) noexcept : numSeconds (secs) {}
RelativeTime::RelativeTime (const RelativeTime& other) noexcept : numSeconds (other.numSeconds) {}
RelativeTime::~RelativeTime() noexcept {}
//==============================================================================
RelativeTime RelativeTime::milliseconds (const int milliseconds) noexcept { return RelativeTime (milliseconds * 0.001); }
RelativeTime RelativeTime::milliseconds (const int64 milliseconds) noexcept { return RelativeTime (milliseconds * 0.001); }
RelativeTime RelativeTime::seconds (double s) noexcept { return RelativeTime (s); }
RelativeTime RelativeTime::minutes (const double numberOfMinutes) noexcept { return RelativeTime (numberOfMinutes * 60.0); }
RelativeTime RelativeTime::hours (const double numberOfHours) noexcept { return RelativeTime (numberOfHours * (60.0 * 60.0)); }
RelativeTime RelativeTime::days (const double numberOfDays) noexcept { return RelativeTime (numberOfDays * (60.0 * 60.0 * 24.0)); }
RelativeTime RelativeTime::weeks (const double numberOfWeeks) noexcept { return RelativeTime (numberOfWeeks * (60.0 * 60.0 * 24.0 * 7.0)); }
//==============================================================================
int64 RelativeTime::inMilliseconds() const noexcept { return (int64) (numSeconds * 1000.0); }
double RelativeTime::inMinutes() const noexcept { return numSeconds / 60.0; }
double RelativeTime::inHours() const noexcept { return numSeconds / (60.0 * 60.0); }
double RelativeTime::inDays() const noexcept { return numSeconds / (60.0 * 60.0 * 24.0); }
double RelativeTime::inWeeks() const noexcept { return numSeconds / (60.0 * 60.0 * 24.0 * 7.0); }
//==============================================================================
RelativeTime& RelativeTime::operator= (const RelativeTime& other) noexcept { numSeconds = other.numSeconds; return *this; }
RelativeTime RelativeTime::operator+= (RelativeTime t) noexcept { numSeconds += t.numSeconds; return *this; }
RelativeTime RelativeTime::operator-= (RelativeTime t) noexcept { numSeconds -= t.numSeconds; return *this; }
RelativeTime RelativeTime::operator+= (const double secs) noexcept { numSeconds += secs; return *this; }
RelativeTime RelativeTime::operator-= (const double secs) noexcept { numSeconds -= secs; return *this; }
RelativeTime operator+ (RelativeTime t1, RelativeTime t2) noexcept { return t1 += t2; }
RelativeTime operator- (RelativeTime t1, RelativeTime t2) noexcept { return t1 -= t2; }
bool operator== (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() == t2.inSeconds(); }
bool operator!= (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() != t2.inSeconds(); }
bool operator> (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() > t2.inSeconds(); }
bool operator< (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() < t2.inSeconds(); }
bool operator>= (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() >= t2.inSeconds(); }
bool operator<= (RelativeTime t1, RelativeTime t2) noexcept { return t1.inSeconds() <= t2.inSeconds(); }
//==============================================================================
static void translateTimeField (String& result, int n, const char* singular, const char* plural)
{
result << TRANS (n == 1 ? singular : plural)
.replace (n == 1 ? "1" : "2", String (n))
<< ' ';
}
String RelativeTime::getDescription (const String& returnValueForZeroTime) const
{
if (numSeconds < 0.001 && numSeconds > -0.001)
return returnValueForZeroTime;
String result;
result.preallocateBytes (32);
if (numSeconds < 0)
result << '-';
int fieldsShown = 0;
int n = std::abs ((int) inWeeks());
if (n > 0)
{
translateTimeField (result, n, NEEDS_TRANS("1 week"), NEEDS_TRANS("2 weeks"));
++fieldsShown;
}
n = std::abs ((int) inDays()) % 7;
if (n > 0)
{
translateTimeField (result, n, NEEDS_TRANS("1 day"), NEEDS_TRANS("2 days"));
++fieldsShown;
}
if (fieldsShown < 2)
{
n = std::abs ((int) inHours()) % 24;
if (n > 0)
{
translateTimeField (result, n, NEEDS_TRANS("1 hr"), NEEDS_TRANS("2 hrs"));
++fieldsShown;
}
if (fieldsShown < 2)
{
n = std::abs ((int) inMinutes()) % 60;
if (n > 0)
{
translateTimeField (result, n, NEEDS_TRANS("1 min"), NEEDS_TRANS("2 mins"));
++fieldsShown;
}
if (fieldsShown < 2)
{
n = std::abs ((int) inSeconds()) % 60;
if (n > 0)
{
translateTimeField (result, n, NEEDS_TRANS("1 sec"), NEEDS_TRANS("2 secs"));
++fieldsShown;
}
if (fieldsShown == 0)
{
n = std::abs ((int) inMilliseconds()) % 1000;
if (n > 0)
result << n << ' ' << TRANS ("ms");
}
}
}
}
return result.trimEnd();
}
JuceLibraryCode/modules/juce_core/time/juce_RelativeTime.h
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
#ifndef JUCE_RELATIVETIME_H_INCLUDED
#define JUCE_RELATIVETIME_H_INCLUDED
//==============================================================================
/** A relative measure of time.
The time is stored as a number of seconds, at double-precision floating
point accuracy, and may be positive or negative.
If you need an absolute time, (i.e. a date + time), see the Time class.
*/
class JUCE_API RelativeTime
{
public:
//==============================================================================
/** Creates a RelativeTime.
@param seconds the number of seconds, which may be +ve or -ve.
@see milliseconds, minutes, hours, days, weeks
*/
explicit RelativeTime (double seconds = 0.0) noexcept;
/** Copies another relative time. */
RelativeTime (const RelativeTime& other) noexcept;
/** Copies another relative time. */
RelativeTime& operator= (const RelativeTime& other) noexcept;
/** Destructor. */
~RelativeTime() noexcept;
//==============================================================================
/** Creates a new RelativeTime object representing a number of milliseconds.
@see seconds, minutes, hours, days, weeks
*/
static RelativeTime milliseconds (int milliseconds) noexcept;
/** Creates a new RelativeTime object representing a number of milliseconds.
@see seconds, minutes, hours, days, weeks
*/
static RelativeTime milliseconds (int64 milliseconds) noexcept;
/** Creates a new RelativeTime object representing a number of seconds.
@see milliseconds, minutes, hours, days, weeks
*/
static RelativeTime seconds (double seconds) noexcept;
/** Creates a new RelativeTime object representing a number of minutes.
@see milliseconds, hours, days, weeks
*/
static RelativeTime minutes (double numberOfMinutes) noexcept;
/** Creates a new RelativeTime object representing a number of hours.
@see milliseconds, minutes, days, weeks
*/
static RelativeTime hours (double numberOfHours) noexcept;
/** Creates a new RelativeTime object representing a number of days.
@see milliseconds, minutes, hours, weeks
*/
static RelativeTime days (double numberOfDays) noexcept;
/** Creates a new RelativeTime object representing a number of weeks.
@see milliseconds, minutes, hours, days
*/
static RelativeTime weeks (double numberOfWeeks) noexcept;
//==============================================================================
/** Returns the number of milliseconds this time represents.
@see milliseconds, inSeconds, inMinutes, inHours, inDays, inWeeks
*/
int64 inMilliseconds() const noexcept;
/** Returns the number of seconds this time represents.
@see inMilliseconds, inMinutes, inHours, inDays, inWeeks
*/
double inSeconds() const noexcept { return numSeconds; }
/** Returns the number of minutes this time represents.
@see inMilliseconds, inSeconds, inHours, inDays, inWeeks
*/
double inMinutes() const noexcept;
/** Returns the number of hours this time represents.
@see inMilliseconds, inSeconds, inMinutes, inDays, inWeeks
*/
double inHours() const noexcept;
/** Returns the number of days this time represents.
@see inMilliseconds, inSeconds, inMinutes, inHours, inWeeks
*/
double inDays() const noexcept;
/** Returns the number of weeks this time represents.
@see inMilliseconds, inSeconds, inMinutes, inHours, inDays
*/
double inWeeks() const noexcept;
/** Returns a readable textual description of the time.
The exact format of the string returned will depend on
the magnitude of the time - e.g.
"1 min 4 secs", "1 hr 45 mins", "2 weeks 5 days", "140 ms"
so that only the two most significant units are printed.
The returnValueForZeroTime value is the result that is returned if the
length is zero. Depending on your application you might want to use this
to return something more relevant like "empty" or "0 secs", etc.
@see inMilliseconds, inSeconds, inMinutes, inHours, inDays, inWeeks
*/
String getDescription (const String& returnValueForZeroTime = "0") const;
//==============================================================================
/** Adds another RelativeTime to this one. */
RelativeTime operator+= (RelativeTime timeToAdd) noexcept;
/** Subtracts another RelativeTime from this one. */
RelativeTime operator-= (RelativeTime timeToSubtract) noexcept;
/** Adds a number of seconds to this time. */
RelativeTime operator+= (double secondsToAdd) noexcept;
/** Subtracts a number of seconds from this time. */
RelativeTime operator-= (double secondsToSubtract) noexcept;
private:
//==============================================================================
double numSeconds;
};
//==============================================================================
/** Compares two RelativeTimes. */
bool operator== (RelativeTime t1, RelativeTime t2) noexcept;
/** Compares two RelativeTimes. */
bool operator!= (RelativeTime t1, RelativeTime t2) noexcept;
/** Compares two RelativeTimes. */
bool operator> (RelativeTime t1, RelativeTime t2) noexcept;
/** Compares two RelativeTimes. */
bool operator< (RelativeTime t1, RelativeTime t2) noexcept;
/** Compares two RelativeTimes. */
bool operator>= (RelativeTime t1, RelativeTime t2) noexcept;
/** Compares two RelativeTimes. */
bool operator<= (RelativeTime t1, RelativeTime t2) noexcept;
//==============================================================================
/** Adds two RelativeTimes together. */
RelativeTime operator+ (RelativeTime t1, RelativeTime t2) noexcept;
/** Subtracts two RelativeTimes. */
RelativeTime operator- (RelativeTime t1, RelativeTime t2) noexcept;
#endif // JUCE_RELATIVETIME_H_INCLUDED
JuceLibraryCode/modules/juce_core/time/juce_Time.cpp
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
namespace TimeHelpers
{
static struct tm millisToLocal (const int64 millis) noexcept
{
struct tm result;
const int64 seconds = millis / 1000;
if (seconds < 86400LL || seconds >= 2145916800LL)
{
// use extended maths for dates beyond 1970 to 2037..
const int timeZoneAdjustment = 31536000 - (int) (Time (1971, 0, 1, 0, 0).toMilliseconds() / 1000);
const int64 jdm = seconds + timeZoneAdjustment + 210866803200LL;
const int days = (int) (jdm / 86400LL);
const int a = 32044 + days;
const int b = (4 * a + 3) / 146097;
const int c = a - (b * 146097) / 4;
const int d = (4 * c + 3) / 1461;
const int e = c - (d * 1461) / 4;
const int m = (5 * e + 2) / 153;
result.tm_mday = e - (153 * m + 2) / 5 + 1;
result.tm_mon = m + 2 - 12 * (m / 10);
result.tm_year = b * 100 + d - 6700 + (m / 10);
result.tm_wday = (days + 1) % 7;
result.tm_yday = -1;
int t = (int) (jdm % 86400LL);
result.tm_hour = t / 3600;
t %= 3600;
result.tm_min = t / 60;
result.tm_sec = t % 60;
result.tm_isdst = -1;
}
else
{
time_t now = static_cast <time_t> (seconds);
#if JUCE_WINDOWS
#ifdef _INC_TIME_INL
if (now >= 0 && now <= 0x793406fff)
localtime_s (&result, &now);
else
zerostruct (result);
#else
result = *localtime (&now);
#endif
#else
localtime_r (&now, &result); // more thread-safe
#endif
}
return result;
}
static int extendedModulo (const int64 value, const int modulo) noexcept
{
return (int) (value >= 0 ? (value % modulo)
: (value - ((value / modulo) + 1) * modulo));
}
static inline String formatString (const String& format, const struct tm* const tm)
{
#if JUCE_ANDROID
typedef CharPointer_UTF8 StringType;
#elif JUCE_WINDOWS
typedef CharPointer_UTF16 StringType;
#else
typedef CharPointer_UTF32 StringType;
#endif
for (size_t bufferSize = 256; ; bufferSize += 256)
{
HeapBlock<StringType::CharType> buffer (bufferSize);
#if JUCE_ANDROID
const size_t numChars = strftime (buffer, bufferSize - 1, format.toUTF8(), tm);
#elif JUCE_WINDOWS
const size_t numChars = wcsftime (buffer, bufferSize - 1, format.toWideCharPointer(), tm);
#else
const size_t numChars = wcsftime (buffer, bufferSize - 1, format.toUTF32(), tm);
#endif
if (numChars > 0 || format.isEmpty())
return String (StringType (buffer),
StringType (buffer) + (int) numChars);
}
}
static uint32 lastMSCounterValue = 0;
}
//==============================================================================
Time::Time() noexcept
: millisSinceEpoch (0)
{
}
Time::Time (const Time& other) noexcept
: millisSinceEpoch (other.millisSinceEpoch)
{
}
Time::Time (const int64 ms) noexcept
: millisSinceEpoch (ms)
{
}
Time::Time (const int year,
const int month,
const int day,
const int hours,
const int minutes,
const int seconds,
const int milliseconds,
const bool useLocalTime) noexcept
{
jassert (year > 100); // year must be a 4-digit version
if (year < 1971 || year >= 2038 || ! useLocalTime)
{
// use extended maths for dates beyond 1970 to 2037..
const int timeZoneAdjustment = useLocalTime ? (31536000 - (int) (Time (1971, 0, 1, 0, 0).toMilliseconds() / 1000))
: 0;
const int a = (13 - month) / 12;
const int y = year + 4800 - a;
const int jd = day + (153 * (month + 12 * a - 2) + 2) / 5
+ (y * 365) + (y / 4) - (y / 100) + (y / 400)
- 32045;
const int64 s = ((int64) jd) * 86400LL - 210866803200LL;
millisSinceEpoch = 1000 * (s + (hours * 3600 + minutes * 60 + seconds - timeZoneAdjustment))
+ milliseconds;
}
else
{
struct tm t;
t.tm_year = year - 1900;
t.tm_mon = month;
t.tm_mday = day;
t.tm_hour = hours;
t.tm_min = minutes;
t.tm_sec = seconds;
t.tm_isdst = -1;
millisSinceEpoch = 1000 * (int64) mktime (&t);
if (millisSinceEpoch < 0)
millisSinceEpoch = 0;
else
millisSinceEpoch += milliseconds;
}
}
Time::~Time() noexcept
{
}
Time& Time::operator= (const Time& other) noexcept
{
millisSinceEpoch = other.millisSinceEpoch;
return *this;
}
//==============================================================================
int64 Time::currentTimeMillis() noexcept
{
#if JUCE_WINDOWS
struct _timeb t;
#ifdef _INC_TIME_INL
_ftime_s (&t);
#else
_ftime (&t);
#endif
return ((int64) t.time) * 1000 + t.millitm;
#else
struct timeval tv;
gettimeofday (&tv, nullptr);
return ((int64) tv.tv_sec) * 1000 + tv.tv_usec / 1000;
#endif
}
Time JUCE_CALLTYPE Time::getCurrentTime() noexcept
{
return Time (currentTimeMillis());
}
//==============================================================================
uint32 juce_millisecondsSinceStartup() noexcept;
uint32 Time::getMillisecondCounter() noexcept
{
const uint32 now = juce_millisecondsSinceStartup();
if (now < TimeHelpers::lastMSCounterValue)
{
// in multi-threaded apps this might be called concurrently, so
// make sure that our last counter value only increases and doesn't
// go backwards..
if (now < TimeHelpers::lastMSCounterValue - 1000)
TimeHelpers::lastMSCounterValue = now;
}
else
{
TimeHelpers::lastMSCounterValue = now;
}
return now;
}
uint32 Time::getApproximateMillisecondCounter() noexcept
{
if (TimeHelpers::lastMSCounterValue == 0)
getMillisecondCounter();
return TimeHelpers::lastMSCounterValue;
}
void Time::waitForMillisecondCounter (const uint32 targetTime) noexcept
{
for (;;)
{
const uint32 now = getMillisecondCounter();
if (now >= targetTime)
break;
const int toWait = (int) (targetTime - now);
if (toWait > 2)
{
Thread::sleep (jmin (20, toWait >> 1));
}
else
{
// xxx should consider using mutex_pause on the mac as it apparently
// makes it seem less like a spinlock and avoids lowering the thread pri.
for (int i = 10; --i >= 0;)
Thread::yield();
}
}
}
//==============================================================================
double Time::highResolutionTicksToSeconds (const int64 ticks) noexcept
{
return ticks / (double) getHighResolutionTicksPerSecond();
}
int64 Time::secondsToHighResolutionTicks (const double seconds) noexcept
{
return (int64) (seconds * (double) getHighResolutionTicksPerSecond());
}
//==============================================================================
String Time::toString (const bool includeDate,
const bool includeTime,
const bool includeSeconds,
const bool use24HourClock) const noexcept
{
String result;
if (includeDate)
{
result << getDayOfMonth() << ' '
<< getMonthName (true) << ' '
<< getYear();
if (includeTime)
result << ' ';
}
if (includeTime)
{
const int mins = getMinutes();
result << (use24HourClock ? getHours() : getHoursInAmPmFormat())
<< (mins < 10 ? ":0" : ":") << mins;
if (includeSeconds)
{
const int secs = getSeconds();
result << (secs < 10 ? ":0" : ":") << secs;
}
if (! use24HourClock)
result << (isAfternoon() ? "pm" : "am");
}
return result.trimEnd();
}
String Time::formatted (const String& format) const
{
struct tm t (TimeHelpers::millisToLocal (millisSinceEpoch));
return TimeHelpers::formatString (format, &t);
}
//==============================================================================
int Time::getYear() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_year + 1900; }
int Time::getMonth() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_mon; }
int Time::getDayOfYear() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_yday; }
int Time::getDayOfMonth() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_mday; }
int Time::getDayOfWeek() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_wday; }
int Time::getHours() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_hour; }
int Time::getMinutes() const noexcept { return TimeHelpers::millisToLocal (millisSinceEpoch).tm_min; }
int Time::getSeconds() const noexcept { return TimeHelpers::extendedModulo (millisSinceEpoch / 1000, 60); }
int Time::getMilliseconds() const noexcept { return TimeHelpers::extendedModulo (millisSinceEpoch, 1000); }
int Time::getHoursInAmPmFormat() const noexcept
{
const int hours = getHours();
if (hours == 0) return 12;
if (hours <= 12) return hours;
return hours - 12;
}
bool Time::isAfternoon() const noexcept
{
return getHours() >= 12;
}
bool Time::isDaylightSavingTime() const noexcept
{
return TimeHelpers::millisToLocal (millisSinceEpoch).tm_isdst != 0;
}
String Time::getTimeZone() const noexcept
{
String zone[2];
#if JUCE_WINDOWS
_tzset();
#ifdef _INC_TIME_INL
for (int i = 0; i < 2; ++i)
{
char name[128] = { 0 };
size_t length;
_get_tzname (&length, name, 127, i);
zone[i] = name;
}
#else
const char** const zonePtr = (const char**) _tzname;
zone[0] = zonePtr[0];
zone[1] = zonePtr[1];
#endif
#else
tzset();
const char** const zonePtr = (const char**) tzname;
zone[0] = zonePtr[0];
zone[1] = zonePtr[1];
#endif
if (isDaylightSavingTime())
{
zone[0] = zone[1];
if (zone[0].length() > 3
&& zone[0].containsIgnoreCase ("daylight")
&& zone[0].contains ("GMT"))
zone[0] = "BST";
}
return zone[0].substring (0, 3);
}
String Time::getMonthName (const bool threeLetterVersion) const
{
return getMonthName (getMonth(), threeLetterVersion);
}
String Time::getWeekdayName (const bool threeLetterVersion) const
{
return getWeekdayName (getDayOfWeek(), threeLetterVersion);
}
static const char* const shortMonthNames[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
static const char* const longMonthNames[] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
String Time::getMonthName (int monthNumber, const bool threeLetterVersion)
{
monthNumber %= 12;
return TRANS (threeLetterVersion ? shortMonthNames [monthNumber]
: longMonthNames [monthNumber]);
}
String Time::getWeekdayName (int day, const bool threeLetterVersion)
{
static const char* const shortDayNames[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
static const char* const longDayNames[] = { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" };
day %= 7;
return TRANS (threeLetterVersion ? shortDayNames [day]
: longDayNames [day]);
}
//==============================================================================
Time& Time::operator+= (RelativeTime delta) noexcept { millisSinceEpoch += delta.inMilliseconds(); return *this; }
Time& Time::operator-= (RelativeTime delta) noexcept { millisSinceEpoch -= delta.inMilliseconds(); return *this; }
Time operator+ (Time time, RelativeTime delta) noexcept { Time t (time); return t += delta; }
Time operator- (Time time, RelativeTime delta) noexcept { Time t (time); return t -= delta; }
Time operator+ (RelativeTime delta, Time time) noexcept { Time t (time); return t += delta; }
const RelativeTime operator- (Time time1, Time time2) noexcept { return RelativeTime::milliseconds (time1.toMilliseconds() - time2.toMilliseconds()); }
bool operator== (Time time1, Time time2) noexcept { return time1.toMilliseconds() == time2.toMilliseconds(); }
bool operator!= (Time time1, Time time2) noexcept { return time1.toMilliseconds() != time2.toMilliseconds(); }
bool operator< (Time time1, Time time2) noexcept { return time1.toMilliseconds() < time2.toMilliseconds(); }
bool operator> (Time time1, Time time2) noexcept { return time1.toMilliseconds() > time2.toMilliseconds(); }
bool operator<= (Time time1, Time time2) noexcept { return time1.toMilliseconds() <= time2.toMilliseconds(); }
bool operator>= (Time time1, Time time2) noexcept { return time1.toMilliseconds() >= time2.toMilliseconds(); }
static int getMonthNumberForCompileDate (const String& m) noexcept
{
for (int i = 0; i < 12; ++i)
if (m.equalsIgnoreCase (shortMonthNames[i]))
return i;
// If you hit this because your compiler has a non-standard __DATE__ format,
// let me know so we can add support for it!
jassertfalse;
return 0;
}
Time Time::getCompilationDate()
{
StringArray dateTokens;
dateTokens.addTokens (__DATE__, true);
dateTokens.removeEmptyStrings (true);
return Time (dateTokens[2].getIntValue(),
getMonthNumberForCompileDate (dateTokens[0]),
dateTokens[1].getIntValue(), 12, 0);
}
JuceLibraryCode/modules/juce_core/time/juce_Time.h
+404
View File
@@ -0,0 +1,404 @@
/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
#ifndef JUCE_TIME_H_INCLUDED
#define JUCE_TIME_H_INCLUDED
//==============================================================================
/**
Holds an absolute date and time.
Internally, the time is stored at millisecond precision.
@see RelativeTime
*/
class JUCE_API Time
{
public:
//==============================================================================
/** Creates a Time object.
This default constructor creates a time of 1st January 1970, (which is
represented internally as 0ms).
To create a time object representing the current time, use getCurrentTime().
@see getCurrentTime
*/
Time() noexcept;
/** Creates a time based on a number of milliseconds.
The internal millisecond count is set to 0 (1st January 1970). To create a
time object set to the current time, use getCurrentTime().
@param millisecondsSinceEpoch the number of milliseconds since the unix
'epoch' (midnight Jan 1st 1970).
@see getCurrentTime, currentTimeMillis
*/
explicit Time (int64 millisecondsSinceEpoch) noexcept;
/** Creates a time from a set of date components.
The timezone is assumed to be whatever the system is using as its locale.
@param year the year, in 4-digit format, e.g. 2004
@param month the month, in the range 0 to 11
@param day the day of the month, in the range 1 to 31
@param hours hours in 24-hour clock format, 0 to 23
@param minutes minutes 0 to 59
@param seconds seconds 0 to 59
@param milliseconds milliseconds 0 to 999
@param useLocalTime if true, encode using the current machine's local time; if
false, it will always work in GMT.
*/
Time (int year,
int month,
int day,
int hours,
int minutes,
int seconds = 0,
int milliseconds = 0,
bool useLocalTime = true) noexcept;
/** Creates a copy of another Time object. */
Time (const Time& other) noexcept;
/** Destructor. */
~Time() noexcept;
/** Copies this time from another one. */
Time& operator= (const Time& other) noexcept;
//==============================================================================
/** Returns a Time object that is set to the current system time.
@see currentTimeMillis
*/
static Time JUCE_CALLTYPE getCurrentTime() noexcept;
/** Returns the time as a number of milliseconds.
@returns the number of milliseconds this Time object represents, since
midnight jan 1st 1970.
@see getMilliseconds
*/
int64 toMilliseconds() const noexcept { return millisSinceEpoch; }
/** Returns the year.
A 4-digit format is used, e.g. 2004.
*/
int getYear() const noexcept;
/** Returns the number of the month.
The value returned is in the range 0 to 11.
@see getMonthName
*/
int getMonth() const noexcept;
/** Returns the name of the month.
@param threeLetterVersion if true, it'll be a 3-letter abbreviation, e.g. "Jan"; if false
it'll return the long form, e.g. "January"
@see getMonth
*/
String getMonthName (bool threeLetterVersion) const;
/** Returns the day of the month.
The value returned is in the range 1 to 31.
*/
int getDayOfMonth() const noexcept;
/** Returns the number of the day of the week.
The value returned is in the range 0 to 6 (0 = sunday, 1 = monday, etc).
*/
int getDayOfWeek() const noexcept;
/** Returns the number of the day of the year.
The value returned is in the range 0 to 365.
*/
int getDayOfYear() const noexcept;
/** Returns the name of the weekday.
@param threeLetterVersion if true, it'll return a 3-letter abbreviation, e.g. "Tue"; if
false, it'll return the full version, e.g. "Tuesday".
*/
String getWeekdayName (bool threeLetterVersion) const;
/** Returns the number of hours since midnight.
This is in 24-hour clock format, in the range 0 to 23.
@see getHoursInAmPmFormat, isAfternoon
*/
int getHours() const noexcept;
/** Returns true if the time is in the afternoon.
So it returns true for "PM", false for "AM".
@see getHoursInAmPmFormat, getHours
*/
bool isAfternoon() const noexcept;
/** Returns the hours in 12-hour clock format.
This will return a value 1 to 12 - use isAfternoon() to find out
whether this is in the afternoon or morning.
@see getHours, isAfternoon
*/
int getHoursInAmPmFormat() const noexcept;
/** Returns the number of minutes, 0 to 59. */
int getMinutes() const noexcept;
/** Returns the number of seconds, 0 to 59. */
int getSeconds() const noexcept;
/** Returns the number of milliseconds, 0 to 999.
Unlike toMilliseconds(), this just returns the position within the
current second rather than the total number since the epoch.
@see toMilliseconds
*/
int getMilliseconds() const noexcept;
/** Returns true if the local timezone uses a daylight saving correction. */
bool isDaylightSavingTime() const noexcept;
/** Returns a 3-character string to indicate the local timezone. */
String getTimeZone() const noexcept;
//==============================================================================
/** Quick way of getting a string version of a date and time.
For a more powerful way of formatting the date and time, see the formatted() method.
@param includeDate whether to include the date in the string
@param includeTime whether to include the time in the string
@param includeSeconds if the time is being included, this provides an option not to include
the seconds in it
@param use24HourClock if the time is being included, sets whether to use am/pm or 24
hour notation.
@see formatted
*/
String toString (bool includeDate,
bool includeTime,
bool includeSeconds = true,
bool use24HourClock = false) const noexcept;
/** Converts this date/time to a string with a user-defined format.
This uses the C strftime() function to format this time as a string. To save you
looking it up, these are the escape codes that strftime uses (other codes might
work on some platforms and not others, but these are the common ones):
%a is replaced by the locale's abbreviated weekday name.
%A is replaced by the locale's full weekday name.
%b is replaced by the locale's abbreviated month name.
%B is replaced by the locale's full month name.
%c is replaced by the locale's appropriate date and time representation.
%d is replaced by the day of the month as a decimal number [01,31].
%H is replaced by the hour (24-hour clock) as a decimal number [00,23].
%I is replaced by the hour (12-hour clock) as a decimal number [01,12].
%j is replaced by the day of the year as a decimal number [001,366].
%m is replaced by the month as a decimal number [01,12].
%M is replaced by the minute as a decimal number [00,59].
%p is replaced by the locale's equivalent of either a.m. or p.m.
%S is replaced by the second as a decimal number [00,61].
%U is replaced by the week number of the year (Sunday as the first day of the week) as a decimal number [00,53].
%w is replaced by the weekday as a decimal number [0,6], with 0 representing Sunday.
%W is replaced by the week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0.
%x is replaced by the locale's appropriate date representation.
%X is replaced by the locale's appropriate time representation.
%y is replaced by the year without century as a decimal number [00,99].
%Y is replaced by the year with century as a decimal number.
%Z is replaced by the timezone name or abbreviation, or by no bytes if no timezone information exists.
%% is replaced by %.
@see toString
*/
String formatted (const String& format) const;
//==============================================================================
/** Adds a RelativeTime to this time. */
Time& operator+= (RelativeTime delta) noexcept;
/** Subtracts a RelativeTime from this time. */
Time& operator-= (RelativeTime delta) noexcept;
//==============================================================================
/** Tries to set the computer's clock.
@returns true if this succeeds, although depending on the system, the
application might not have sufficient privileges to do this.
*/
bool setSystemTimeToThisTime() const;
//==============================================================================
/** Returns the name of a day of the week.
@param dayNumber the day, 0 to 6 (0 = sunday, 1 = monday, etc)
@param threeLetterVersion if true, it'll return a 3-letter abbreviation, e.g. "Tue"; if
false, it'll return the full version, e.g. "Tuesday".
*/
static String getWeekdayName (int dayNumber, bool threeLetterVersion);
/** Returns the name of one of the months.
@param monthNumber the month, 0 to 11
@param threeLetterVersion if true, it'll be a 3-letter abbreviation, e.g. "Jan"; if false
it'll return the long form, e.g. "January"
*/
static String getMonthName (int monthNumber, bool threeLetterVersion);
//==============================================================================
// Static methods for getting system timers directly..
/** Returns the current system time.
Returns the number of milliseconds since midnight jan 1st 1970.
Should be accurate to within a few millisecs, depending on platform,
hardware, etc.
*/
static int64 currentTimeMillis() noexcept;
/** Returns the number of millisecs since a fixed event (usually system startup).
This returns a monotonically increasing value which it unaffected by changes to the
system clock. It should be accurate to within a few millisecs, depending on platform,
hardware, etc.
Being a 32-bit return value, it will of course wrap back to 0 after 2^32 seconds of
uptime, so be careful to take that into account. If you need a 64-bit time, you can
use currentTimeMillis() instead.
@see getApproximateMillisecondCounter
*/
static uint32 getMillisecondCounter() noexcept;
/** Returns the number of millisecs since a fixed event (usually system startup).
This has the same function as getMillisecondCounter(), but returns a more accurate
value, using a higher-resolution timer if one is available.
@see getMillisecondCounter
*/
static double getMillisecondCounterHiRes() noexcept;
/** Waits until the getMillisecondCounter() reaches a given value.
This will make the thread sleep as efficiently as it can while it's waiting.
*/
static void waitForMillisecondCounter (uint32 targetTime) noexcept;
/** Less-accurate but faster version of getMillisecondCounter().
This will return the last value that getMillisecondCounter() returned, so doesn't
need to make a system call, but is less accurate - it shouldn't be more than
100ms away from the correct time, though, so is still accurate enough for a
lot of purposes.
@see getMillisecondCounter
*/
static uint32 getApproximateMillisecondCounter() noexcept;
//==============================================================================
// High-resolution timers..
/** Returns the current high-resolution counter's tick-count.
This is a similar idea to getMillisecondCounter(), but with a higher
resolution.
@see getHighResolutionTicksPerSecond, highResolutionTicksToSeconds,
secondsToHighResolutionTicks
*/
static int64 getHighResolutionTicks() noexcept;
/** Returns the resolution of the high-resolution counter in ticks per second.
@see getHighResolutionTicks, highResolutionTicksToSeconds,
secondsToHighResolutionTicks
*/
static int64 getHighResolutionTicksPerSecond() noexcept;
/** Converts a number of high-resolution ticks into seconds.
@see getHighResolutionTicks, getHighResolutionTicksPerSecond,
secondsToHighResolutionTicks
*/
static double highResolutionTicksToSeconds (int64 ticks) noexcept;
/** Converts a number seconds into high-resolution ticks.
@see getHighResolutionTicks, getHighResolutionTicksPerSecond,
highResolutionTicksToSeconds
*/
static int64 secondsToHighResolutionTicks (double seconds) noexcept;
/** Returns a Time based on the value of the __DATE__ macro when this module was compiled */
static Time getCompilationDate();
private:
//==============================================================================
int64 millisSinceEpoch;
};
//==============================================================================
/** Adds a RelativeTime to a Time. */
JUCE_API Time operator+ (Time time, RelativeTime delta) noexcept;
/** Adds a RelativeTime to a Time. */
JUCE_API Time operator+ (RelativeTime delta, Time time) noexcept;
/** Subtracts a RelativeTime from a Time. */
JUCE_API Time operator- (Time time, RelativeTime delta) noexcept;
/** Returns the relative time difference between two times. */
JUCE_API const RelativeTime operator- (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator== (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator!= (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator< (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator<= (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator> (Time time1, Time time2) noexcept;
/** Compares two Time objects. */
JUCE_API bool operator>= (Time time1, Time time2) noexcept;
#endif // JUCE_TIME_H_INCLUDED