I'm still a neophite at thread safety/PHP internals, but I found a quick fix
to the OCI8 and PHP in threaded envrionment.
Changing OCI_THREADED to OCI_DEFAULT in the OCIInitialize function is the
quick fix I discovered. It works because the OCI8 exention is designed for
seperate address space for all oci calls.
You can't call OCIInitialize or OCIEnvInit mutiple times in a process. They
are designed to be called once through the life of a process. OCI in a
threaded environment the threads share the parent's OCIEnvironment. The OCI
module currently doesn't take this into consideration and calls OCIEnvInit
when it grabs a copy of the OCI_globals. Works fine if they're not sharing
the Parent environment, traditional Unix style processes.
Not using OCI_THREADED in OCIInitialize, OCI threads act like seperate
processes.
OCI8 has the ability to take full advantage of a threaded environment. I've
studied the calls etc. and there is a lot of resource sharing that can be
implemented with OCI in threaded environment. Implementing OCI_SHARED can
provide supererior perfomance increases on threaded servers. It's and ideal
switch to throw into the mix, but a lot of rewiring needs to be done on the
OCI8 module for this to work as advertised.
Thies, I'd love to work with you on this, if you're interested... I need
some help understanding how the existing code operates. I have a feel for
it, but would like some assumption verification. ;-)
joebrown
podiatryfl.com
""Thies C. Arntzen"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> On Fri, Apr 06, 2001 at 10:50:49PM -0400, Joe Brown wrote:
> > It appears to me that the oci8 module does not behave well on win32 - a
> > threaded environment. I've begun to study the code, and believe I can
make
> > it mind the rules.
>
> what is not thread-safe in your opinion? i don't use windows
> or any other threded server so i can't really tell
> >
> > Thread safe programming is new to me. (hehe were have you heard that
b4?-)
> >
> > Is anyone else working on the OCI8 extension?
>
> i am
>
> tc
>
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