ICU-59180.0.1.tar.gz

[apple/icu.git] / icuSources / i18n / chnsecal.cpp

diff --git a/icuSources/i18n/chnsecal.cpp b/icuSources/i18n/chnsecal.cpp
index c27f58f392d065facb9c21a1b5eac145497c6b42..9c9bad478b18ec7d7b4f7b2650f3af0085ee490b 100644 (file)
--- a/icuSources/i18n/chnsecal.cpp
+++ b/icuSources/i18n/chnsecal.cpp
@@ -1,3 +1,5 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
  ******************************************************************************
  * Copyright (C) 2007-2014, International Business Machines Corporation
@@ -49,10 +51,13 @@ static void debug_chnsecal_msg(const char *pat, ...)
 
 
 // --- The cache --
-static UMutex astroLock = U_MUTEX_INITIALIZER;  // pod bay door lock
+static UMutex astroLock = U_MUTEX_INITIALIZER;  // Protects access to gChineseCalendarAstro.
 static icu::CalendarAstronomer *gChineseCalendarAstro = NULL;
+
+// Lazy Creation & Access synchronized by class CalendarCache with a mutex.
 static icu::CalendarCache *gChineseCalendarWinterSolsticeCache = NULL;
 static icu::CalendarCache *gChineseCalendarNewYearCache = NULL;
+
 static icu::TimeZone *gChineseCalendarZoneAstroCalc = NULL;
 static icu::UInitOnce gChineseCalendarZoneAstroCalcInitOnce = U_INITONCE_INITIALIZER;