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Re: BSD sockets calls on OSX Tiger and thread safety

To illustrate what Dave said, if you call send() on the same socket file descriptor from 2 threads you have no guarantee on what data will be sent first. If ordering is important your program, need to provide your own synchronization mechanism.

Sending from 2 threads on 2 distinct file descriptors is not a problem (except if the 2 file descriptors are logically related for a specific application but that's rather rare...)

Vincent

On Oct 18, 2006, at 8:46 AM, Dave Zarzycki wrote:

The APIs are thread safe.

But like all thread safe APIs, one can still use them in an unsafe manner.

davez

On Oct 18, 2006, at 8:38 AM, email@hidden wrote:


Hello, all ...

How thread-safe is OSXs' BSD sockets implementation? Can I call select(), recv(), send(), socket(), setsockopt(), etc. from multiple threads simultaneously without locking, or are there things I need to be aware of?

Regards,

John

Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com


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References: 
 >BSD sockets calls on OSX Tiger and thread safety (From: email@hidden)
 >Re: BSD sockets calls on OSX Tiger and thread safety (From: Dave Zarzycki <email@hidden>)



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