[Changed subject, I missed this thread until now because of it...]
I assume this difference between 1&2 and 3 is _strictly_ performance, and
_nothing_ else?
And a note for others: You don't need TSRML* in every function, but you do
need it if you use:
- Global variables, like BG(...) & co.
- Use a function which is declared TSRMLS_C[C] in your function
- more?
Greetz,
Jeroen
"Zeev Suraski" <[EMAIL PROTECTED]> wrote in message
news:5.1.0.14.2.20010826123513.03102660@localhost...
> The thread safety macros pass around a context that the rest of the thread
> safety macros use. There are three types of such macros:
>
> 1. Macros that are used in function declarations, to denote that the
> function accepts this context as an argument:
> TSRMLS_D - if it's the only argument (Thread Safe Resource Manager
> Local Storage, Declaration)
> TSRMLS_DC - if it's not the only argument (Thread Safe Resource
> Manager Local Storage, Declaration with Comma)
>
> 2. Macros that are used in function calls, to pass the context to
> functions that accept it:
> TSRMLS_C - if it's the only argument (Thread Safe Resource Manager
> Local Storage, Call)
> TSRMLS_CC - if it's not the only argument (Thread Safe Resource
> Manager Local Storage, Call with Comma)
>
>
> 3. If the context cannot be passed using function arguments (e.g., in
> certain callbacks), it can be obtained by calling TSRMLS_FETCH() at the
> end of the variable declarations (Thread Safe Resource Manager Local
> Storage Fetch)
>
>
> For performance reasons, using 1+2 is usually preferred to using 3.
>
> Zeev
>
>
>
> At 12:07 26-08-01, Joey Smith wrote:
> >I really don't understand the thread-safety stuff, but shouldn't this
> >also be using TSRMLS_CC instead of TSRMLS_FETCH()?
> >
> >
> > > - TSRMLS_FETCH();
> > > -
> > > /* these names depend on the values of the
> > PHP_STREAM_AS_XXX defines in php_streams.h */
> > > static const char * cast_names[3] = {
> > > "STDIO FILE*", "File Descriptor", "Socket
Descriptor"
> > > };
> > > + TSRMLS_FETCH();
> > > +
> > > zend_error(E_WARNING, "%s(): cannot represent a stream
of
> > type %s as a %s",
> > > get_active_function_name(TSRMLS_C),
> > > stream->ops->label,
> >
> >
> >--
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>
> --
> Zeev Suraski <[EMAIL PROTECTED]>
> CTO & co-founder, Zend Technologies Ltd. http://www.zend.com/
>
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