Is Winsock thread-safe?

Networking and Multiplayer Programming

Started by Karl G September 18, 2004 01:49 PM

2 comments, last by hplus0603 19 years, 7 months ago

170

Author

September 18, 2004 01:49 PM

I remember reading somewhere that the basic Winsock 2 functions (not those Microsoft WSA-whatevers) are not thread safe. This doesn't make sense though, because Winsock 2 is a DLL file, and to be able to be accessed by multiple programs it must be able to support simultaneous calls to the library functions. Is this true or am I missing something?

Agony

3,452

September 18, 2004 03:16 PM

According to this, I'd say yes.

"We should have a great fewer disputes in the world if words were taken for what they are, the signs of our ideas only, and not for things themselves." - John Locke

Karl G

170

Author

September 18, 2004 05:11 PM

Thanks for that--it was exactly what I was looking for :)

hplus0603

11,916

September 18, 2004 07:59 PM

The same DLL doesn't get accessed by multiple processes as of the introduction of Windows 95. Each process gets its own copy of the writable data segment for the DLL. The "all processes share" model was the old Win16 model, which is luckily quite dead and buried by now ;-)

enum Bool { True, False, FileNotFound };