php5 object model

Hey, ADT is the Abstract Data Type extension available on cvs.php.net, module name "adt." I'm nearing an alpha, but have one outstanding issue. ADT itself provides both a functional and an object oriented interface. The following example shows the two ways you can use a stack. Functional -- <?php $stack = adt_stack_new(); for ($i = 0; $i < 100; ++$i) { adt_stack_push($stack, $i); } var_dump(adt_stack_pop($stack)); adt_stack_free($stack); ?> Object Oriented -- <?php $stack = new adt_stack(); for ($i = 0; $i < 100; ++$i) { $stack->push($i); } var_dump($stack->pop()); $stack->destroy(); ?> ADT works fine with Zend Engine version 1, however, when using Zend Engine 2, the code segfaults when registering a new object: zend_hash_apply_with_argument (ht=0x0, apply_func=0x81117a0 <zval_update_constant>, argument=0x0) at /home/sterling/work/os/php/php5/Zend/zend_hash.c:702 702 HASH_PROTECT_RECURSION(ht); (gdb) bt #0 zend_hash_apply_with_argument (ht=0x0, apply_func=0x81117a0 <zval_update_constant>, argument=0x0) at /home/sterling/work/os/php/php5/Zend/zend_hash.c:702 #1 0x081196fa in _object_and_properties_init (arg=0x402c3a8c, class_type=0x8171000, properties=0x0) at /home/sterling/work/os/php/php5/Zend/zend_API.c:588 #2 0x0811971b in _object_init_ex (arg=0x402c3a8c, class_type=0x8171000) at /home/sterling/work/os/php/php5/Zend/zend_API.c:610 #3 0x0806591c in adt_register_resource (tptr=0x81b67c0, le_id=15, r_id=0x402c2d2c, obj=0x402c3a8c, cp=0x8171000, id=0x81b67d0) at /home/sterling/work/os/php/php5/ext/adt/php_adt.c:127 #4 0x08067a5e in zif_adt_stack_new (ht=0, return_value=0x402c3aac, this_ptr=0x402c3a8c, return_value_used=0) at /home/sterling/work/os/php/php5/ext/adt/php_stack.c:53 #5 0x081276cc in zend_do_fcall_common_helper (execute_data=0xbfffd730, op_array=0x402c21ac) at /home/sterling/work/os/php/php5/Zend/zend_execute.c:2566 #6 0x0812426f in execute (op_array=0x402c21ac) at /home/sterling/work/os/php/php5/Zend/zend_execute.c:1218 #7 0x081188f3 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/sterling/work/os/php/php5/Zend/zend.c:996 #8 0x080f57e8 in php_execute_script (primary_file=0xbffffa10) at /home/sterling/work/os/php/php5/main/main.c:1691 #9 0x0812c4ed in main (argc=2, argv=0xbffffaa4) at /home/sterling/work/os/php/php5/sapi/cli/php_cli.c:753 The relevant code relating to this segfault is: object_init_ex(obj, cp); where obj is the zval * returned by getThis(), and cp represents a zend_class_entry *, registered by the following code. INIT_CLASS_ENTRY(stack_class_entry, "adt_stack", stack_class_functions); zend_register_internal_class(&stack_class_entry TSRMLS_CC); and stack_class_entry is of type zend_class_entry. cp is therefore a pointer to the global stack_class_entry. I'm running the non-threadsafe version of php. How can I make this code run with PHP 5? -Sterling -- "C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg." - Bjarne Stroustrup