Re: How php works?

# maillist.kai@gmail.com / 2006-12-13 18:57:58 +0800: > On 12/13/06, Roman Neuhauser <neuhauser@sigpipe.cz> wrote: > ># maillist.kai@gmail.com / 2006-12-13 14:15:26 +0800: > >> 3. Take linux apache for example, if compiled as a apache module, > >> and using prefork threading model, for example, if I have 100 > >> process, is that means I have 100 copy of PHP library local data(I > >> assume only one reentrant excutable image) in each process? compare > >> to a worker model, like 10 process and 10 threads in each one > >> process, should it make a difference that we only have 10 copy of > >> PHP library local data ? > > > >Practical concerns make your question moot: even if the basic > >distribution was all threadsafe, you're bound to hit a library that > >uses strtok(3) or strerror(3), or static variables. How much of the > >code you rely on is labelled by its authors as threadsafe? > > > So it is not a good idea to use worker and php module at the same > time, but if no threadsafe problem , maybe my thinking is right? vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv > Btw, I thought strerror in libc were thread-safe. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ In a touch of genius, you summed up the whole thread-safety problem so succintly, it puts an end to the whole thread. -- How many Vietnam vets does it take to screw in a light bulb? You don't know, man. You don't KNOW. Cause you weren't THERE. http://bash.org/?255991