Pre-allocate an ScInterpreter object for each thread...

and reuse them for interpret'ing all cells under the
respective threads. This gives a sizeable win in the execution
time especially for long formula-groups.

Change-Id: Ib340950f21e863b5b821d20c092214d8bc5012aa
Reviewed-on: https://gerrit.libreoffice.org/80845
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/sc/inc/interpretercontext.hxx b/sc/inc/interpretercontext.hxx
index c7598fef8cdc..b46a23f4e6a0 100644
--- a/sc/inc/interpretercontext.hxx
+++ b/sc/inc/interpretercontext.hxx
@@ -24,6 +24,7 @@ class FormulaToken;
 class ScDocument;
 class SvNumberFormatter;
 struct ScLookupCacheMap;
+class ScInterpreter;
 
 // SetNumberFormat() is not thread-safe, so calls to it need to be delayed to the main thread.
 struct DelayedSetNumberFormat
@@ -45,12 +46,14 @@ struct ScInterpreterContext
     // Allocation cache for "aConditions" array in ScInterpreter::IterateParameterIfs()
     // This is populated/used only when formula-group threading is enabled.
     std::vector<sal_uInt32> maConditions;
+    ScInterpreter* pInterpreter;
 
     ScInterpreterContext(const ScDocument& rDoc, SvNumberFormatter* pFormatter)
         : mpDoc(&rDoc)
         , mnTokenCachePos(0)
         , maTokens(TOKEN_CACHE_SIZE, nullptr)
         , mScLookupCache(nullptr)
+        , pInterpreter(nullptr)
         , mpFormatter(pFormatter)
     {
     }