Re: [APC-DEV] atomaticity/thread safeness of apc shared memory functions+ mutexes

Rasmus Lerdorf schreef:

> Yes, they are atomic and they are locked appropriately.  You don't need
> any sort of mutex.  This is shared memory.  Generally we don't suggest
> running PHP in any sort of threaded environment though.

To respond to your last remark: php processes can be exectuted in 
parallel by Apache—at least this is my understanding. So if I need to 
work with multiple shared memory entries per request i still need 
mutexes in order to lock concurrent access to these pieces.

With a web server you don't have a guarantee that requests are all 
handled sequentially. If  I am wrong, Im happy to be corrected!