static isc_callback _php_ibase_callback(ibase_event *event, /* {{{ */
unsigned short buffer_size, char *result_buf)
{
zval *res;
/* this function is called asynchronously by the Interbase client library. */
TSRMLS_FETCH_FROM_CTX(event->thread_ctx);
/**
* The callback function is called when the event is first registered and when the event
* is cancelled. I consider this is a bug. By clearing event->callback first and setting
* it to -1 later, we make sure nothing happens if no event was actually posted.
*/
switch (event->state) {
unsigned short i;
unsigned long occurred_event[15];
zval return_value, args[2];
default: /* == DEAD */
break;
case ACTIVE:
/* copy the updated results into the result buffer */
memcpy(event->result_buffer, result_buf, buffer_size);
res = zend_hash_index_find(&EG(regular_list), event->link_res_id);
ZVAL_RES(&args[1], Z_RES_P(res));
/* find out which event occurred */
isc_event_counts(occurred_event, buffer_size, event->event_buffer, event->result_buffer);
for (i = 0; i < event->event_count; ++i) {
if (occurred_event[i]) {
ZVAL_STRING(&args[0], event->events[i]);
efree(event->events[i]);
break;
}
}
/* call the callback provided by the user */
if (SUCCESS != call_user_function(EG(function_table), NULL,
&event->callback, &return_value, 2, args)) {
_php_ibase_module_error("Error calling callback %s", Z_STRVAL(event->callback));
break;
}
if (Z_TYPE(return_value) == IS_FALSE) {
event->state = DEAD;
break;
}
case NEW:
/* re-register the event */
if (isc_que_events(IB_STATUS, &event->link->handle, &event->event_id, buffer_size,
event->event_buffer,(isc_callback)_php_ibase_callback, (void *)event)) {
_php_ibase_error();
}
event->state = ACTIVE;
}
return 0;
}
ISC_STATUS API_ROUTINE gds__que_events(ISC_STATUS* status_vector,
FB_API_HANDLE* db_handle,
SLONG* event_id,
SSHORT events_length,
const UCHAR* events,
FPTR_EVENT_CALLBACK ast_address,
void* ast_argument)
{
return isc_que_events(status_vector, db_handle, event_id, events_length,
events, ast_address, ast_argument);
}