This is going to the list per Nathan's suggestion.
I confess I am doing this the hard way because I want to get a handle
on how to pass across that boundary.
My current angle of attack is to use the malloc.i functions in swig to
handle those strings.
I will keep you all posted. I know you care. :-)
Eric
I have a software library that parses strings into a C language
structure. It is a utility for C programmers.
It contains a utility function that takes the output structure and
formats it as a string for display.
The goal is to demonstrate the functionality by permitting users to
enter strings into a text box and press a button.
The string will be passed into my code, parsed, formatted as a
different kind of string, and returned, where it will be
displayed on the web site.
The code is being shipped as a Windows DLL but for the web site I am
working with Linux dynamic libraries (*.so).
I am able to call functions within the binary from PHP now, but
pointers within PHP are not working far less crossing the
PHP/C Line Of Death without dying.
please keep the responses on list for the benefit of others.
well, if you have an .so, honestly i might spend the effort to wrap it
up in a simple extension.
but if you want to roll something out quickly, i would probly just
invoke it over the shell via shell_exec() or similar.
i cant imagine what sort of noticeable impact you would see in
performance going over the shell in this case. honestly, i think the
question is how much work do you want to do. also, do you intend to
share this functionality w/ other php programers, that might be an
argument for an extension.
do you already have a C based program that loads up the library from
the cli and uses STDIN / STDOUT, if so i think going over the shell is
a no-brainer..
On Tue, Jan 5, 2010 at 2:56 PM, Nathan Nobbe <quickshiftin@xxxxxxxxx> wrote:
> On Tue, Jan 5, 2010 at 3:42 PM, Eric Fowler <eric.fowler@xxxxxxxxx> wrote:
>>
>> Hm, that could work, but it does produce overhead.
>
> you should consider your overall communication paradigm. im very loosely
> familiar w/ swig, basically ive heard of it ...
> anyways, you have a few options for communication,
> . shell (call php from C or the other way around)
> . php extension, this may not make sense depending on what your C is doing
> and is by far the most complex
> . network protocol, socket, http or other..
> can you tell us a little bit more about what youre trying to accomplish and
> specifically how C and php are communicating in general in your application?
> -nathan
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