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authorStephan Bergmann <sbergman@redhat.com>2012-11-07 16:14:33 +0100
committerStephan Bergmann <sbergman@redhat.com>2012-11-07 16:16:40 +0100
commit74670bf04e0dc693de6ea060d0dd2c10ee3b184d (patch)
tree2eeec8aa9fb7b09a53285b912acbb325b09c91f8 /embeddedobj
parent628ec2a1ce1370b04b832437fce9a661f3d8f754 (diff)
fdo#56818 Work around deadlock caused by differing lock orders
Change-Id: Iaabe36bf0c1f051f9cebc2b65e614063698959fa
Diffstat (limited to 'embeddedobj')
-rw-r--r--embeddedobj/Library_embobj.mk1
-rw-r--r--embeddedobj/prj/build.lst2
-rw-r--r--embeddedobj/source/commonembedding/embedobj.cxx11
3 files changed, 13 insertions, 1 deletions
diff --git a/embeddedobj/Library_embobj.mk b/embeddedobj/Library_embobj.mk
index 99456ed3b183..1fa1c5a4482d 100644
--- a/embeddedobj/Library_embobj.mk
+++ b/embeddedobj/Library_embobj.mk
@@ -45,6 +45,7 @@ $(eval $(call gb_Library_use_libraries,embobj,\
cppu \
cppuhelper \
sal \
+ vcl \
$(gb_UWINAPI) \
))
diff --git a/embeddedobj/prj/build.lst b/embeddedobj/prj/build.lst
index eed683e832fa..fea2c33cdb91 100644
--- a/embeddedobj/prj/build.lst
+++ b/embeddedobj/prj/build.lst
@@ -1,2 +1,2 @@
-eo embeddedobj : offapi sal cppu cppuhelper comphelper tools unotools LIBXSLT:libxslt NULL
+eo embeddedobj : offapi sal cppu cppuhelper comphelper tools unotools vcl LIBXSLT:libxslt NULL
eo embeddedobj\prj nmake - all eo_prj NULL
diff --git a/embeddedobj/source/commonembedding/embedobj.cxx b/embeddedobj/source/commonembedding/embedobj.cxx
index df75afe66b9b..941186d50370 100644
--- a/embeddedobj/source/commonembedding/embedobj.cxx
+++ b/embeddedobj/source/commonembedding/embedobj.cxx
@@ -40,6 +40,7 @@
#include <comphelper/processfactory.hxx>
#include <rtl/logfile.hxx>
+#include <vcl/svapp.hxx>
#include <targetstatecontrol.hxx>
@@ -529,6 +530,16 @@ void SAL_CALL OCommonEmbeddedObject::doVerb( sal_Int32 nVerbID )
{
RTL_LOGFILE_CONTEXT( aLog, "embeddedobj (mv76033) OCommonEmbeddedObject::doVerb" );
+ SolarMutexGuard aSolarGuard;
+ //TODO: a gross hack to avoid deadlocks when this is called from the
+ // outside and OCommonEmbeddedObject::changeState, with m_aMutex locked,
+ // calls into framework code that tries to lock the solar mutex, while
+ // another thread (through Window::ImplCallPaint, say) calls
+ // OCommonEmbeddedObject::getComponent with the solar mutex locked and
+ // then tries to lock m_aMutex (see fdo#56818); the alternative would be
+ // to get locking done right in this class, but that looks like a
+ // daunting task
+
::osl::ResettableMutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException(); // TODO