MTA is faster or STA
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ApartmentState.STA or ApartmentState.MTA in .net
i want to know which thread state is faster ApartmentState.STA or ApartmentState.MTA in vb.net and why?
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by: jensfiedererPosted on 2009-07-09 at 10:46:44ID: 24816145
When it works, and doesn't require heavy extra coding, MTA:
"From COM's perspective, a multithreaded apartment (MTA) is an easier model compared to an STA. Incoming RPC calls directly use the thread assigned by the RPC run time. No message pump or hidden window is used for communication between the client and object. The object does not live in any specific thread. Within a process, clients from any thread can directly call any object inside the MTA. (There is only one MTA per process.) Interface pointers between threads do not need to be marshaled."
( quoted from http://msdn.microsoft.com/
But, as the same source warns,
"However, an MTA requires extreme caution on the part of the object implementor. Multiple threads can call an object method at the same time. Therefore the object must provide synchronized access to any instance using synchronization primitives like events, mutexes, or semaphores. It must be completely thread safe and reentrant."