On Thu, 2002-08-01 at 08:04, [EMAIL PROTECTED] wrote:
> On 31 Jul 2002, Jason T. Greene wrote:
>
> > Instead of mutexing the entire interpreter to death, why don't you try
> > creating multiple interpreters (each in a thread), and then come up with
> > a sharing mechanism.
>
> Sounds like duplication some other thing :)
>
> Derick
parse error on line 1 : )
huh?
-Jason
>
> > On Wed, 2002-07-31 at 03:57, Alan Knowles wrote:
> > > Im looking at adding threading to php, (for the cgi/cli stuff)..
> > >
> > > The story so far:
> > >
> > > I've created an extension which diverts all zend_execute calls into the
> > > extension -> phpthreads_execute.
> > > this function is a copy of zend_execute with a few modifications
> > > - to copy & restore things like EG(active_symbol_table);
> > > - to malloc lock and unlock the execute loop and release on each opcode.
> > >
> > > I've started testing the phpthreads_create($callback); - it appears to
> > > work ok, execept it segfaults on completion.. - trying to reduce
> > > refcounts somewhere.
> > >
> > > The fireup code looks something like this..
> > >
> > > void phpthreads_create(void *ptr) {
> > > zval myretval;
> > > zval *callback = (zval *) ptr;
> > >
> > > if (!call_user_function( EG(function_table), NULL, callback,
> > > &myretval, 0, NULL TSRMLS_CC )) {
> > > zend_error(E_ERROR, "Problem Starting thread with
> > > callback");
> > > }
> > >
> > > pthread_exit(NULL);
> > >
> > >
> > > }
> > > /* {{{ proto string phpthreads_thread(string function)
> > > Return a string to confirm that the module is compiled in */
> > > PHP_FUNCTION(phpthreads_create)
> > > {
> > >
> > > zval *callback;
> > > pthread_t thread;
> > >
> > > if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z",
> > > &callback) == FAILURE) {
> > > return;
> > > }
> > > pthread_create( &thread, NULL, (void *) phpthreads_create,
> > > (void*) callback);
> > > RETURN_TRUE;
> > > }
> > >
> > > and the backtrace of the simple threaded test looks like this..
> > > 0x08128f08 in _zval_ptr_dtor (zval_ptr=0x81b5ce8) at
> > > /usr/src/php/php4/Zend/zend_execute_API.c:275
> > > 275 (*zval_ptr)->refcount--;
> > > (gdb) bt
> > > #0 0x08128f08 in _zval_ptr_dtor (zval_ptr=0x81b5ce8) at
> > > /usr/src/php/php4/Zend/zend_execute_API.c:275
> > > #1 0x424ceba2 in ?? ()
> > > #2 0x424c7c92 in ?? ()
> > > #3 0x08130588 in zend_execute_scripts (type=8, retval=0x0,
> > > file_count=3) at /usr/src/php/php4/Zend/zend.c:810
> > > #4 0x08110abd in php_execute_script (primary_file=0x40006c71) at
> > > /usr/src/php/php4/main/main.c:1398
> > > #5 0x08110138 in php_module_shutdown () at
> > > /usr/src/php/php4/main/main.c:1058
> > > #6 0x2e325f43 in ?? ()
> > >
> > > does anyone want to suggest what might be missing - is it worth putting
> > > this into pecl - and does someone what to lend a hand??
> > >
> > > regards
> > > alan
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
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> > >
> >
> >
> >
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>
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