Please disregard this, I found the problem - namely,
zend_register_internal_class should be called once on module
initialization per internal class, not once per class instantiation.
-Bob
> I'm trying to get a libical binding going for PHP (v4.3.2, with plans to
> port to 5.0 as soon as it works with v4.3.x). At the moment,
> this PHP code works:
>
> $x = icalcomponent_new_vcalendar();
> $y = icalcomponent_new_vevent();
> $x->add_component($y);
>
> but this fails:
>
> $x = icalcomponent_new_vcalendar();
> $x->add_component(icalcomponent_new_vevent());
>
> Both icalcomponent_new_vcalendar() and icalcomponent_new_vevent() return
> icalcomponent classes from the extension. Icalcomponent has one
> data member ("resource") holding an icalcomponent *, and a class entry
> containing a list of functions (such as "add_component") that can be
> used to manipulate the component.
>
> I've attempted to debug this - in the failing case the vcalendar
> component and the vevent component are created correctly, but when
> icalcomponent_new_vevent() returns something happens so that add_component
> isn't being found properly:
>
> $ gdb ../../../sapi/cli/php core
> GNU gdb 5.3
> Core was generated by `../../../sapi/cli/php t1.php'.
> Program terminated with signal 11, Segmentation fault.
> #0 call_overloaded_function (T=0xa0dc624c, arg_count=1,
> return_value=0x81d86b4)
> at /tmp/new_installation/php-4.3.2-devel/Zend/zend_execute.c:966
> 966 ce = Z_OBJCE_P(T->EA.data.overloaded_element.object);
> (gdb) where
> #0 call_overloaded_function (T=0xa0dc624c, arg_count=1,
> return_value=0x81d86b4)
> at /tmp/new_installation/php-4.3.2-devel/Zend/zend_execute.c:966
> #1 0x081492ea in execute (op_array=0x81d416c)
> at /tmp/new_installation/php-4.3.2-devel/Zend/zend_execute.c:1672
> #2 0x0813cbf8 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
> at /tmp/new_installation/php-4.3.2-devel/Zend/zend.c:869
> #3 0x08117630 in php_execute_script (primary_file=0xbffff460)
> at /tmp/new_installation/php-4.3.2-devel/main/main.c:1671
> #4 0x0814d986 in main (argc=2, argv=0xbffff4f4)
> at /tmp/new_installation/php-4.3.2-devel/sapi/cli/php_cli.c:806
> #5 0x4010af64 in __libc_start_main (main=0x814d1d0 <main>, argc=2,
> ubp_av=0x0, init=0x8066d68 <_init>, fini=0x1, rtld_fini=0x81d84a0,
> stack_end=0x807e0b0) at ../sysdeps/generic/libc-start.c:144
>
> (In the call_overloaded_function frame, the T parameter pointer is
> invalid).
>
> This is the relevant code that is being called in the extension; perhaps
> somewhere I am not constructing/returning an icalcomponent class zval
> properly?
>
> static void
> icalcomponent_new_return(zval *rv, icalcomponent *icc)
> {
> zend_class_entry *ce, icalcomponent_entry;
> zval *res;
> int resid;
>
> INIT_CLASS_ENTRY(icalcomponent_entry, "icalcomponent",
> icalcomponenttype_functions);
> ce = zend_register_internal_class(&icalcomponent_entry TSRMLS_CC);
> object_init_ex(rv, ce);
>
> MAKE_STD_ZVAL(res);
> resid = ZEND_REGISTER_RESOURCE(res, icc, icalcomponent_resource_id);
> add_property_resource(rv, "resource", resid);
> }
>
> static ZEND_FUNCTION(icalcomponent_new_vcalendar)
> {
> if(ZEND_NUM_ARGS() != 0) WRONG_PARAM_COUNT;
> icalcomponent_new_return(return_value, icalcomponent_new_vcalendar());
> }
>
> static ZEND_FUNCTION(icalcomponent_new_vevent)
> {
> if(ZEND_NUM_ARGS() != 0) WRONG_PARAM_COUNT;
> icalcomponent_new_return(return_value, icalcomponent_new_vevent());
> }
>
> static ZEND_NAMED_FUNCTION(zif_icalcomponent_add_component)
> {
> zval **entry, *icc_obj;
> zend_class_entry icalcomponenttype_entry;
> icalcomponent *icc = NULL, *child = NULL;
>
> if(ZEND_NUM_ARGS() != 1) WRONG_PARAM_COUNT;
> INIT_CLASS_ENTRY(icalcomponenttype_entry, "icalcomponent",
> icalcomponenttype_functions);
> if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o",
> &icc_obj) == FAILURE)
> return;
>
> if(zend_hash_find(HASH_OF(getThis()), "resource", sizeof("resource"), (void
> **)&entry) == SUCCESS && Z_TYPE_PP(entry) == IS_RESOURCE)
> ZEND_FETCH_RESOURCE(icc, icalcomponent *, entry, -1, ICALCOMPONENT_RESOURCE,
> icalcomponent_resource_id);
>
> if(!icc || !icalcomponent_isa_component(icc) || !icalcomponent_is_valid(icc))
> return;
>
> if(zend_hash_find(HASH_OF(icc_obj), "resource", sizeof("resource"), (void
> **)&entry) == SUCCESS && Z_TYPE_PP(entry) == IS_RESOURCE)
> ZEND_FETCH_RESOURCE(child, icalcomponent *, entry, -1, ICALCOMPONENT_RESOURCE,
> icalcomponent_resource_id);
>
> if(!child || !icalcomponent_isa_component(child) || !icalcomponent_is_valid(child))
> return;
>
> icalcomponent_add_component(icc, child);
> }
>
>
> Any help would be appreciated. Thanks in advance.
>
> -Bob
>
> --
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
>
> <!DSPAM:3f3a5e2f204661244910416>
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
