diff options
author | Eike Rathke <erack@redhat.com> | 2016-09-22 22:20:48 +0200 |
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committer | Eike Rathke <erack@redhat.com> | 2016-09-23 15:14:03 +0000 |
commit | 7d8196ea2f4ec3634dbad7367345e62c4ea9893d (patch) | |
tree | 4550d4ccc4205ae5ca9f134d29927b202e10fb70 /include/svl/hint.hxx | |
parent | 751689283c9f3010f7978b6576b25ffc579202ef (diff) |
perf: eliminate SfxSimpleHint and move to SfxHint, tdf#87101 related
There were over 150 places in *::Notify() functions that did some
dynamic_cast<SfxSimpleHint*> of which ~98% were unnecessary because the
base class SfxHint passed was an SfxSimpleHint anyway. dynamic_cast
operations come with quite some cost, so avoid if possible. Specifically
for ScFormulaCell::Notify() that created a bottleneck in scenarios where
cells were notified that already handled a previous notification. In
mass operations doing the dynamic_cast before it could be decided
whether having to act on it or not this made 2/3 of all time spent in
the Notify() call.
To get rid of that rename/move SfxSimpleHint to SfxHint and let classes
derive from SfxHint instead of SfxSimpleHint. This comes only with a
slight cost that an additional sal_uInt32 is transported in such hints,
initialized to 0, but this is neglectable compared to the huge gain.
For the rare cases where a Notify() actually expects both, an SfxHint
(formerly SfxSimpleHint) and a derived hint, this changed order of the
dynamic_cast involved so the simple SfxHint::GetId() is handled last.
Modules using such combinations can further optimize by treating the
simple SfxHint::GetId() first once verified that none of the other
derived hints use an ID not equal to zero respectively none of the ID
values the simple hint uses.
Change-Id: I9fcf723e3a4487ceb92336189d23a62c344cf0ce
Reviewed-on: https://gerrit.libreoffice.org/29205
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>
Diffstat (limited to 'include/svl/hint.hxx')
-rw-r--r-- | include/svl/hint.hxx | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/include/svl/hint.hxx b/include/svl/hint.hxx index 4aec70090c54..8de965d73af5 100644 --- a/include/svl/hint.hxx +++ b/include/svl/hint.hxx @@ -19,15 +19,43 @@ #ifndef INCLUDED_SVL_HINT_HXX #define INCLUDED_SVL_HINT_HXX +#include <sal/types.h> #include <svl/svldllapi.h> +#define SFX_HINT_DYING 0x00000001 +#define SFX_HINT_NAMECHANGED 0x00000002 +#define SFX_HINT_TITLECHANGED 0x00000004 +#define SFX_HINT_DATACHANGED 0x00000008 +#define SFX_HINT_DOCCHANGED 0x00000010 +#define SFX_HINT_UPDATEDONE 0x00000020 +#define SFX_HINT_DEINITIALIZING 0x00000040 +#define SFX_HINT_MODECHANGED 0x00000080 + // unused, formerly SFX_HINT_CANCELLABLE + // unused, formerly SFX_HINT_DATAAVAILABLE + // unused, formerly SFX_HINT_SAVECOMPLETED + // unused, formerly SFX_HINT_RELEASEREF +#define SFX_HINT_COLORS_CHANGED 0x00001000 +#define SFX_HINT_CTL_SETTINGS_CHANGED 0x00002000 +#define SFX_HINT_ACCESSIBILITY_CHANGED 0x00004000 + // unused, formerly SFX_HINT_VIEWCREATED +#define SFX_HINT_USER00 0x00010000 +#define SFX_HINT_USER01 0x00020000 +#define SFX_HINT_USER02 0x00040000 +#define SFX_HINT_USER03 0x00080000 +#define SFX_HINT_USER04 0x00100000 +#define SFX_HINT_USER05 0x00200000 + class SVL_DLLPUBLIC SfxHint { +private: + sal_uInt32 mnId; public: + SfxHint() : mnId(0) {} + explicit SfxHint( sal_uInt32 nId ) : mnId(nId) {} virtual ~SfxHint(); + sal_uInt32 GetId() const { return mnId; } }; - #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |