FGFS-4.1/OpenSceneGraph
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From Frashud Lashkari, "I was getting "Unsupported wrapper class..." error messages when attempting to load osgb models simultaneously from multiple threads. I believe the problem is caused by un-synchronized access to the global osgDB::ObjectWrapperManager class. I've attached a change that adds a mutex to the class and uses it when accessing the internal wrapper/compress maps. This appears to fix the issues I was having."

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14880 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield 2015-06-01 12:07:04 +00:00
parent 78a01ce2a5
commit 120bf699b2
2 changed files with 15 additions and 0 deletions
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3
include/osgDB/ObjectWrapper
View File

@ -15,6 +15,7 @@
#ifndef OSGDB_OBJECTWRAPPER
#define OSGDB_OBJECTWRAPPER
#include <OpenThreads/ReentrantMutex>
#include <osgDB/Serializer>
#include <osg/ScriptEngine>
@ -169,6 +170,8 @@ protected:
ObjectWrapperManager();
virtual ~ObjectWrapperManager();
OpenThreads::ReentrantMutex _wrapperMutex;
WrapperMap _wrappers;
CompressorMap _compressors;

12
src/osgDB/ObjectWrapper.cpp
View File

@ -647,6 +647,8 @@ void ObjectWrapperManager::addWrapper( ObjectWrapper* wrapper )
{
if ( !wrapper ) return;
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
WrapperMap::iterator itr = _wrappers.find( wrapper->getName() );
if ( itr!=_wrappers.end() )
{
@ -660,12 +662,16 @@ void ObjectWrapperManager::removeWrapper( ObjectWrapper* wrapper )
{
if ( !wrapper ) return;
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
WrapperMap::iterator itr = _wrappers.find( wrapper->getName() );
if ( itr!=_wrappers.end() ) _wrappers.erase( itr );
}
ObjectWrapper* ObjectWrapperManager::findWrapper( const std::string& name )
{
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
WrapperMap::iterator itr = _wrappers.find( name );
if ( itr!=_wrappers.end() ) return itr->second.get();
@ -694,6 +700,8 @@ void ObjectWrapperManager::addCompressor( BaseCompressor* compressor )
{
if ( !compressor ) return;
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
CompressorMap::iterator itr = _compressors.find( compressor->getName() );
if ( itr!=_compressors.end() )
{
@ -707,12 +715,16 @@ void ObjectWrapperManager::removeCompressor( BaseCompressor* compressor )
{
if ( !compressor ) return;
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
CompressorMap::iterator itr = _compressors.find( compressor->getName() );
if ( itr!=_compressors.end() ) _compressors.erase( itr );
}
BaseCompressor* ObjectWrapperManager::findCompressor( const std::string& name )
{
OpenThreads::ScopedLock<OpenThreads::ReentrantMutex> lock(_wrapperMutex);
CompressorMap::iterator itr = _compressors.find( name );
if ( itr!=_compressors.end() ) return itr->second.get();