= RFC 16: OGR Thread Safety = 

Author: Frank Warmerdam[[BR]]
Contact: warmerdam@pobox.com[[BR]]
Status: Development

== Summary ==

In an effort to better support thread safety in OGR some methods are added as internal infrastructure is updated.

== Definitions ==

'''Reentrant''': A reentrant function can be called simultaneously by multiple threads provided that each invocation of the function references unique data.

'''Thread-safe''': A thread-safe function can be called simultaneously by multiple threads when each invocation references shared data. All access to the shared data is serialized.