Global s_allocatedNodes accessed without synchronization

[turol]

Global s_allocatedNodes is defined here:

openddl-parser/code/DDLNode.cpp

Line 31 in 3fbbe5e

DDLNode::DllNodeList DDLNode::s_allocatedNodes;

and accessed in multiple places without synchronization. This can break badly when the library is used in multithreaded program, for example with several instances of assimp Importer.

A workaround would be adding synchronization to all accesses. An actual solution would be removing this and making it local to each instance somehow.

[kimkulling]

Good point!