i18n-perf: cache map of breakiterators, tdf#108703

See source code comment.

Change-Id: I75015f3492a24f5f69a163dca165dcf57d6f0e28
Reviewed-on: https://gerrit.libreoffice.org/42866
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>

1 files changed, 17 insertions, 8 deletions

diff --git a/i18npool/inc/breakiterator_unicode.hxx b/i18npool/inc/breakiterator_unicode.hxx
index 8783764cb0e1..c9e644e31f42 100644
--- a/i18npool/inc/breakiterator_unicode.hxx
+++ b/i18npool/inc/breakiterator_unicode.hxx
@@ -23,6 +23,7 @@
 
 #include <unicode/brkiter.h>
 #include <memory>
+#include <unordered_map>
 
 namespace com { namespace sun { namespace star { namespace i18n {
 
@@ -71,27 +72,35 @@ public:
 protected:
     const sal_Char *cBreakIterator, *lineRule;
 
-    struct BI_Data
+    /** Used as map value. */
+    struct BI_ValueData
     {
-        OUString            aICUText;
-        UText*              ut;
-        std::unique_ptr<icu::BreakIterator> aBreakIterator;
-        css::lang::Locale   maLocale;
+        OUString                                maICUText;
+        UText*                                  mpUt;
+        std::shared_ptr< icu::BreakIterator >   mpBreakIterator;
 
-        BI_Data() : ut(nullptr)
+        BI_ValueData() : mpUt(nullptr)
         {
         }
-        ~BI_Data()
+        ~BI_ValueData()
         {
-            utext_close(ut);
+            utext_close(mpUt);
         }
+    };
 
+    struct BI_Data
+    {
+        std::shared_ptr< BI_ValueData > mpValue;
+        OString                         maBIMapKey;
     } character, sentence, line, *icuBI;
     BI_Data words[4]; // 4 is css::i18n::WordType enumeration size
 
     /// @throws css::uno::RuntimeException
     void SAL_CALL loadICUBreakIterator(const css::lang::Locale& rLocale,
         sal_Int16 rBreakType, sal_Int16 rWordType, const sal_Char* name, const OUString& rText);
+
+public:
+    typedef std::unordered_map< OString, std::shared_ptr< BI_ValueData >, OStringHash > BIMap;
 };
 
 } } } }