[Libreoffice-commits] core.git: framework/inc framework/source

Stephan Bergmann sbergman at redhat.com
Tue Jan 26 06:11:29 PST 2016


 framework/inc/xml/acceleratorconfigurationreader.hxx           |   10 -------
 framework/inc/xml/acceleratorconfigurationwriter.hxx           |   11 -------
 framework/source/accelerators/acceleratorconfiguration.cxx     |   14 +++++-----
 framework/source/accelerators/keymapping.cxx                   |   11 ++++++-
 framework/source/inc/accelerators/acceleratorconfiguration.hxx |    4 --
 framework/source/inc/accelerators/keymapping.hxx               |    3 +-
 framework/source/xml/acceleratorconfigurationreader.cxx        |    5 ++-
 framework/source/xml/acceleratorconfigurationwriter.cxx        |    5 ++-
 8 files changed, 26 insertions(+), 37 deletions(-)

New commits:
commit 7d9ac365039a23b704738b63a54bbbae6e9f6f3a
Author: Stephan Bergmann <sbergman at redhat.com>
Date:   Tue Jan 26 15:09:30 2016 +0100

    Replace salhelper::SingletonRef with rtl::Static
    
    When destroying the static vcl::CommandInfoProvider aProvider from
    vcl::CommandInfoProvider::Instance (vcl/source/helper/commandinfoprovider.cxx)
    during exit, it releases its mxCachedGlobalAcceleratorConfiguration reference on
    GlobalAcceleratorConfiguration
    (framework/source/accelerators/globalacceleratorconfiguration.cxx), which may
    get destroyed, whose base class framework::XCUBasedAcceleratorConfiguration
    (framework/source/inc/accelerators/acceleratorconfiguration.hxx) has a
    salhelper::SingletonRef<framework::KeyMapping> member, whose destructor
    (include/salhelper/singletonref.hxx) uses
    salhelper::SingletonRef<framework::KeyMapping>::SingletonLockInit::operator ()'s
    static osl::Mutex aInstance.
    
    If, during construction, the instantiation of
    salhelper::SingletonRef<framework::KeyMapping>::SingletonLockInit::operator ()'s
    static osl::Mutex aInstance finishes before the instantiation of
    vcl::CommandInfoProvider::Instance's static vcl::CommandInfoProvider aProvider,
    the corresponding atexit cleanup actions will be recorded in the right order,
    causing the above chain of calls to find the static Mutex still alive when used
    from within the static CommandInfoProvider's destruction.
    
    However, vcl::CommandInfoProvider's mxCachedGlobalAcceleratorConfiguration is
    only set to css::ui::GlobalAcceleratorConfiguration::create in
    vcl::CommandInfoProvider::GetGlobalAcceleratorConfiguration, so the
    instantiation of the static Mutex instance can finish after the instantiation of
    the static CommandInfoProvider instance, recording the atexit cleanup actions in
    the wrong order, causing the static Mutex to be used after destruction.
    
    This occasionally caused PythonTest_sfx2_python to hang during exit for me on
    Linux, where trying to lock a destroyed pthread mutex can apparently deadlock.
    
    rtl::Static does away with the need to do anything in the destructor, at the
    expense of always keeping the instance alive until exit (and not being able to
    recreate an already destroyed instance during exit, but code that would require
    that behavior would probably already be broken to begin with), so the order of
    creation of the CommandInfoProvider and GlobalAcceleratorConfiguration instances
    becomes less of a concern.
    
    Change-Id: Id6e3860ad9e5b7045980a0b9bf9eaef2e24129bb

diff --git a/framework/inc/xml/acceleratorconfigurationreader.hxx b/framework/inc/xml/acceleratorconfigurationreader.hxx
index 6dc343d..90365e5 100644
--- a/framework/inc/xml/acceleratorconfigurationreader.hxx
+++ b/framework/inc/xml/acceleratorconfigurationreader.hxx
@@ -23,7 +23,6 @@
 #include <xml/saxnamespacefilter.hxx> // HACK: needed for MSVC 2013 ENABLE_LTO build: WeakImplHelper<XDocumentHandler>
 
 #include <accelerators/acceleratorcache.hxx>
-#include <accelerators/keymapping.hxx>
 #include <macros/xinterface.hxx>
 #include <general.h>
 
@@ -31,7 +30,6 @@
 
 #include <com/sun/star/xml/sax/XLocator.hpp>
 
-#include <salhelper/singletonref.hxx>
 #include <cppuhelper/implbase.hxx>
 #include <rtl/ustring.hxx>
 
@@ -85,14 +83,6 @@ class AcceleratorConfigurationReader : public ::cppu::WeakImplHelper< css::xml::
                     occurs recursive inside xml. */
         bool m_bInsideAcceleratorItem;
 
-        /** @short  is used to map key codes to its
-                    string representation.
-
-            @descr  To perform this operation is
-                    created only one time and kept
-                    alive forever ...*/
-        ::salhelper::SingletonRef< KeyMapping > m_rKeyMapping;
-
         /** @short  provide information about the parsing state.
 
             @descr  We use it to find out the line and column, where
diff --git a/framework/inc/xml/acceleratorconfigurationwriter.hxx b/framework/inc/xml/acceleratorconfigurationwriter.hxx
index d46b2e9..e71c889 100644
--- a/framework/inc/xml/acceleratorconfigurationwriter.hxx
+++ b/framework/inc/xml/acceleratorconfigurationwriter.hxx
@@ -21,12 +21,9 @@
 #define INCLUDED_FRAMEWORK_INC_XML_ACCELERATORCONFIGURATIONWRITER_HXX
 
 #include <accelerators/acceleratorcache.hxx>
-#include <accelerators/keymapping.hxx>
 #include <general.h>
 
 #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
-
-#include <salhelper/singletonref.hxx>
 #include <rtl/ustring.hxx>
 
 namespace framework{
@@ -45,14 +42,6 @@ class AcceleratorConfigurationWriter
                     writer must work on. */
         const AcceleratorCache& m_rContainer;
 
-        /** @short  is used to map key codes to its
-                    string representation.
-
-            @descr  To perform this operation is
-                    created only one times and holded
-                    alive forever ...*/
-        ::salhelper::SingletonRef< KeyMapping > m_rKeyMapping;
-
     // interface
 
     public:
diff --git a/framework/source/accelerators/acceleratorconfiguration.cxx b/framework/source/accelerators/acceleratorconfiguration.cxx
index 3fb8331..586011a 100644
--- a/framework/source/accelerators/acceleratorconfiguration.cxx
+++ b/framework/source/accelerators/acceleratorconfiguration.cxx
@@ -18,7 +18,7 @@
  */
 
 #include <accelerators/acceleratorconfiguration.hxx>
-
+#include <accelerators/keymapping.hxx>
 #include <accelerators/presethandler.hxx>
 
 #include <xml/saxnamespacefilter.hxx>
@@ -57,10 +57,10 @@ namespace framework
     const char CFG_ENTRY_SECONDARY[] = "SecondaryKeys";
     const char CFG_PROP_COMMAND[] = "Command";
 
-    OUString lcl_getKeyString(salhelper::SingletonRef<framework::KeyMapping>& _rKeyMapping, const css::awt::KeyEvent& aKeyEvent)
+    OUString lcl_getKeyString(const css::awt::KeyEvent& aKeyEvent)
     {
         const sal_Int32 nBeginIndex = 4; // "KEY_" is the prefix of a identifier...
-        OUStringBuffer sKeyBuffer((_rKeyMapping->mapCodeToIdentifier(aKeyEvent.KeyCode)).copy(nBeginIndex));
+        OUStringBuffer sKeyBuffer((KeyMapping::get().mapCodeToIdentifier(aKeyEvent.KeyCode)).copy(nBeginIndex));
 
         if ( (aKeyEvent.Modifiers & css::awt::KeyModifier::SHIFT) == css::awt::KeyModifier::SHIFT )
             sKeyBuffer.append("_SHIFT");
@@ -1135,7 +1135,7 @@ void XCUBasedAcceleratorConfiguration::impl_ts_load( bool bPreferred, const css:
             sal_Int32 nIndex = 0;
             OUString sKeyCommand = sKey.getToken(0, '_', nIndex);
             OUString sPrefix("KEY_");
-            aKeyEvent.KeyCode = m_rKeyMapping->mapIdentifierToCode(sPrefix + sKeyCommand);
+            aKeyEvent.KeyCode = KeyMapping::get().mapIdentifierToCode(sPrefix + sKeyCommand);
 
             css::uno::Sequence< OUString > sToken(4);
             const sal_Int32 nToken = 4;
@@ -1289,7 +1289,7 @@ void XCUBasedAcceleratorConfiguration::insertKeyToConfiguration( const css::awt:
         xModules->getByName(m_sModuleCFG) >>= xContainer;
     }
 
-    const OUString sKey = lcl_getKeyString(m_rKeyMapping,aKeyEvent);
+    const OUString sKey = lcl_getKeyString(aKeyEvent);
     css::uno::Reference< css::container::XNameAccess > xKey;
     css::uno::Reference< css::container::XNameContainer > xCommand;
     if ( !xContainer->hasByName(sKey) )
@@ -1329,7 +1329,7 @@ void XCUBasedAcceleratorConfiguration::removeKeyFromConfiguration( const css::aw
         xModules->getByName(m_sModuleCFG) >>= xContainer;
     }
 
-    const OUString sKey = lcl_getKeyString(m_rKeyMapping,aKeyEvent);
+    const OUString sKey = lcl_getKeyString(aKeyEvent);
     xContainer->removeByName(sKey);
 }
 
@@ -1355,7 +1355,7 @@ void XCUBasedAcceleratorConfiguration::reloadChanged( const OUString& sPrimarySe
 
     sal_Int32 nIndex = 0;
     sKeyIdentifier = sKey.getToken(0, '_', nIndex);
-    aKeyEvent.KeyCode = m_rKeyMapping->mapIdentifierToCode("KEY_"+sKeyIdentifier);
+    aKeyEvent.KeyCode = KeyMapping::get().mapIdentifierToCode("KEY_"+sKeyIdentifier);
 
     css::uno::Sequence< OUString > sToken(3);
     const sal_Int32 nToken = 3;
diff --git a/framework/source/accelerators/keymapping.cxx b/framework/source/accelerators/keymapping.cxx
index ec02c32..02a0278 100644
--- a/framework/source/accelerators/keymapping.cxx
+++ b/framework/source/accelerators/keymapping.cxx
@@ -20,6 +20,7 @@
 #include <accelerators/keymapping.hxx>
 
 #include <com/sun/star/awt/Key.hpp>
+#include <rtl/instance.hxx>
 
 namespace framework
 {
@@ -152,8 +153,14 @@ KeyMapping::KeyMapping()
     }
 }
 
-KeyMapping::~KeyMapping()
-{
+namespace {
+
+struct Instance: public rtl::Static<KeyMapping, Instance> {};
+
+}
+
+KeyMapping & KeyMapping::get() {
+    return Instance::get();
 }
 
 sal_uInt16 KeyMapping::mapIdentifierToCode(const OUString& sIdentifier)
diff --git a/framework/source/inc/accelerators/acceleratorconfiguration.hxx b/framework/source/inc/accelerators/acceleratorconfiguration.hxx
index be26772..e0d8755 100644
--- a/framework/source/inc/accelerators/acceleratorconfiguration.hxx
+++ b/framework/source/inc/accelerators/acceleratorconfiguration.hxx
@@ -22,7 +22,6 @@
 
 #include <accelerators/presethandler.hxx>
 #include <accelerators/acceleratorcache.hxx>
-#include <accelerators/keymapping.hxx>
 #include <macros/xinterface.hxx>
 #include <macros/xtypeprovider.hxx>
 #include <general.h>
@@ -46,7 +45,6 @@
 
 #include <cppuhelper/propshlp.hxx>
 #include <cppuhelper/implbase.hxx>
-#include <salhelper/singletonref.hxx>
 
 // definition
 
@@ -257,8 +255,6 @@ class XCUBasedAcceleratorConfiguration : public  ::cppu::WeakImplHelper<
         OUString m_sGlobalOrModules;
         OUString m_sModuleCFG;
 
-        ::salhelper::SingletonRef< KeyMapping > m_rKeyMapping;
-
         // native interface!
 
     public:
diff --git a/framework/source/inc/accelerators/keymapping.hxx b/framework/source/inc/accelerators/keymapping.hxx
index dfdd327..3b6b7a2 100644
--- a/framework/source/inc/accelerators/keymapping.hxx
+++ b/framework/source/inc/accelerators/keymapping.hxx
@@ -77,7 +77,8 @@ class KeyMapping
     public:
 
                  KeyMapping();
-        virtual ~KeyMapping();
+
+        static KeyMapping & get();
 
         /** @short  return a suitable key code
                     for the specified key identifier.
diff --git a/framework/source/xml/acceleratorconfigurationreader.cxx b/framework/source/xml/acceleratorconfigurationreader.cxx
index 000e831..bb282d0 100644
--- a/framework/source/xml/acceleratorconfigurationreader.cxx
+++ b/framework/source/xml/acceleratorconfigurationreader.cxx
@@ -17,6 +17,9 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <sal/config.h>
+
+#include <accelerators/keymapping.hxx>
 #include <xml/acceleratorconfigurationreader.hxx>
 
 #include <acceleratorconst.h>
@@ -121,7 +124,7 @@ void SAL_CALL AcceleratorConfigurationReader::startElement(const OUString&
                     break;
 
                 case E_ATTRIBUTE_KEYCODE :
-                    aEvent.KeyCode = m_rKeyMapping->mapIdentifierToCode(sValue);
+                    aEvent.KeyCode = KeyMapping::get().mapIdentifierToCode(sValue);
                     break;
 
                 case E_ATTRIBUTE_MOD_SHIFT :
diff --git a/framework/source/xml/acceleratorconfigurationwriter.cxx b/framework/source/xml/acceleratorconfigurationwriter.cxx
index 07c0a12..181acec 100644
--- a/framework/source/xml/acceleratorconfigurationwriter.cxx
+++ b/framework/source/xml/acceleratorconfigurationwriter.cxx
@@ -17,6 +17,9 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <sal/config.h>
+
+#include <accelerators/keymapping.hxx>
 #include <xml/acceleratorconfigurationwriter.hxx>
 
 #include <acceleratorconst.h>
@@ -94,7 +97,7 @@ void AcceleratorConfigurationWriter::impl_ts_writeKeyCommandPair(const css::awt:
     ::comphelper::AttributeList* pAttribs = new ::comphelper::AttributeList;
     css::uno::Reference< css::xml::sax::XAttributeList > xAttribs (static_cast< css::xml::sax::XAttributeList* >(pAttribs) , css::uno::UNO_QUERY_THROW);
 
-    OUString sKey = m_rKeyMapping->mapCodeToIdentifier(aKey.KeyCode);
+    OUString sKey = KeyMapping::get().mapCodeToIdentifier(aKey.KeyCode);
     // TODO check if key is empty!
 
     pAttribs->AddAttribute(AL_ATTRIBUTE_KEYCODE, ATTRIBUTE_TYPE_CDATA, sKey    );


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