OK thanks > I would be very surprised if memcpy() were on a list of functions that lock.
Yeah me too, but I wanted to be absolutely sure. Even googling “memcpy thread safe” came up with a(n unverified) comment that it IS on Solaris, which probably means it takes a mutex, right? Perhaps my question here really should have been: “where can I find a list of common functions that never lock?” :) > dispatch_async() is completely different from vDSP. Well I said that to say if dispatch_async isn’t lock-free, then that means GCD isn't entirely either. And the (typically vague) apple documentation says "many vecLib routines used multiple POSIX threads...In OS X v10.7, these routines use Grand Central Dispatch” And since vDSP is part of vecLib…what else can I conclude? -m _______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/coreaudio-api/archive%40mail-archive.com This email sent to [email protected]
