Changeset 50711 in webkit for trunk/JavaScriptCore/wtf/DateMath.h

Timestamp:

Nov 9, 2009, 8:14:34 PM (16 years ago)

Author:

[email protected]

Message:

Imported the v8 DST cache.

Reviewed by Oliver Hunt.

SunSpider says 1.5% faster.

• runtime/JSGlobalData.cpp:

(JSC::JSGlobalData::resetDateCache): Reset the DST cache when resetting
other date data.

• runtime/JSGlobalData.h:

(JSC::DSTOffsetCache::DSTOffsetCache):
(JSC::DSTOffsetCache::reset): Added a struct for the DST cache.

• wtf/DateMath.cpp:

(WTF::calculateDSTOffsetSimple):
(WTF::calculateDSTOffset):
(WTF::parseDateFromNullTerminatedCharacters):
(JSC::getDSTOffset):
(JSC::gregorianDateTimeToMS):
(JSC::msToGregorianDateTime):
(JSC::parseDateFromNullTerminatedCharacters):

• wtf/DateMath.h: The imported code for probing and updating the cache.

File:

• trunk/JavaScriptCore/wtf/DateMath.h (modified) (1 diff)

trunk/JavaScriptCore/wtf/DateMath.h

@@ -75 +75 @@
 const double msPerHour = 60.0 * 60.0 * 1000.0;
 const double msPerDay = 24.0 * 60.0 * 60.0 * 1000.0;
+const double msPerMonth = 2592000000.0;
 
 } // namespace WTF