php-src/ext/rpc/rpc.c

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"

#include "php_rpc.h"
#include "rpc.h"
#include "layer.h"

ZEND_DECLARE_MODULE_GLOBALS(rpc)

static void rpc_globals_ctor(zend_rpc_globals * TSRMLS_DC);
static void rpc_instance_dtor(void *);
static void rpc_proxy_dtor(void *pDest);
static void rpc_class_dtor(void *);
static void rpc_string_dtor(void *);
static void rpc_export_functions(char *, zend_class_entry *, function_entry[] TSRMLS_DC);
static zend_object_value rpc_create_object(zend_class_entry * TSRMLS_DC);

/* object handler */
static void rpc_add_ref(zval * TSRMLS_DC);
static void rpc_del_ref(zval * TSRMLS_DC);
static void rpc_delete(zval * TSRMLS_DC);
static zend_object_value rpc_clone(zval * TSRMLS_DC);
static zval* rpc_read(zval *, zval *, int  TSRMLS_DC);
static void rpc_write(zval *, zval *, zval * TSRMLS_DC);
static zval** rpc_get_property(zval *, zval * TSRMLS_DC);
static zval* rpc_get(zval * TSRMLS_DC);
static void rpc_set(zval **, zval * TSRMLS_DC);
static int rpc_has_property(zval *, zval *, int  TSRMLS_DC);
static void rpc_unset_property(zval *, zval * TSRMLS_DC);
static HashTable* rpc_get_properties(zval * TSRMLS_DC);
static union _zend_function* rpc_get_method(zval *, char *, int TSRMLS_DC);
static union _zend_function* rpc_get_constructor(zval * TSRMLS_DC);
static zend_class_entry** rpc_get_class_entry(zval *object TSRMLS_DC);
static int rpc_get_classname(zval *, char **, zend_uint *, int  TSRMLS_DC);
static int rpc_compare(zval *, zval * TSRMLS_DC);
/**/

/* pseudo handler */
static void rpc_internal_get(rpc_internal *, char *, zend_uint, zval *);
static void rpc_internal_set(rpc_internal *, char *, zend_uint, zval *);
/**/

extern zend_object_handlers rpc_proxy_handlers;

static zend_object_handlers rpc_handlers = {
	rpc_add_ref,
	rpc_del_ref,
	rpc_delete,
	rpc_clone,
	rpc_read,
	rpc_write,
	rpc_get_property,
	NULL,
	rpc_get,
	rpc_set,
	rpc_has_property,
	rpc_unset_property,
	rpc_get_properties,
	rpc_get_method,
	NULL,
	rpc_get_constructor,
	rpc_get_class_entry,
	rpc_get_classname,
	rpc_compare
};

/* {{{ rpc_functions[]
 */
function_entry rpc_functions[] = {
	{NULL, NULL, NULL}
};
/* }}} */

/* {{{ rpc_module_entry
 */
zend_module_entry rpc_module_entry = {
	STANDARD_MODULE_HEADER,
	"rpc",
	rpc_functions,
	ZEND_MINIT(rpc),
	ZEND_MSHUTDOWN(rpc),
	NULL,
	NULL,
	ZEND_MINFO(rpc),
	"0.1a",
	STANDARD_MODULE_PROPERTIES
};
/* }}} */

static HashTable *handlers;
static TsHashTable *instance;
static TsHashTable *proxy;
static TsHashTable *classes;
static zend_llist *classes_list;

#ifdef COMPILE_DL_RPC
ZEND_GET_MODULE(rpc);
#endif

/* {{{ PHP_INI
 */
PHP_INI_BEGIN()
/* TODO: add module specific ini settings here */
PHP_INI_END()
/* }}} */

static void rpc_globals_ctor(zend_rpc_globals *rpc_globals TSRMLS_DC)
{
}

/* {{{ ZEND_MINIT_FUNCTION
 */
ZEND_MINIT_FUNCTION(rpc)
{
	handlers = (HashTable *) pemalloc(sizeof(HashTable), TRUE);
	instance = (TsHashTable *) pemalloc(sizeof(TsHashTable), TRUE);
	proxy = (TsHashTable *) pemalloc(sizeof(TsHashTable), TRUE);
	classes = (TsHashTable *) pemalloc(sizeof(TsHashTable), TRUE);
	classes_list = (zend_llist *) pemalloc(sizeof(zend_llist), TRUE);

	zend_hash_init(handlers, 0, NULL, NULL, TRUE);	
	zend_ts_hash_init(instance, 0, NULL, rpc_instance_dtor, TRUE);
	zend_ts_hash_init(proxy, 0, NULL, rpc_proxy_dtor, TRUE);
	zend_ts_hash_init(classes, 0, NULL, NULL, TRUE);
	zend_llist_init(classes_list, sizeof(rpc_class_hash **), rpc_class_dtor, TRUE);

	FOREACH_HANDLER {
		HANDLER.rpc_handler_init();
		
		/* create a class entry for every rpc handler */
		INIT_OVERLOADED_CLASS_ENTRY((*(HANDLER.ce)),
									HANDLER.name,
									HANDLER.methods,
									NULL,
									NULL,
									NULL);

		HANDLER.ce->create_object = rpc_create_object;

		/* load all available rpc handler into a hash */
		zend_hash_add(handlers, HANDLER.name, strlen(HANDLER.name) + 1, &(HANDLER.handlers), sizeof(rpc_object_handlers *), NULL);

		/* register classes and functions */
		zend_register_internal_class(HANDLER.ce TSRMLS_CC);
		zend_register_functions(HANDLER.functions, NULL, MODULE_PERSISTENT TSRMLS_CC);
	}

	ZEND_INIT_MODULE_GLOBALS(rpc, rpc_globals_ctor, NULL);
	REGISTER_INI_ENTRIES();

	return SUCCESS;
}
/* }}} */

/* {{{ ZEND_MSHUTDOWN_FUNCTION
 */
ZEND_MSHUTDOWN_FUNCTION(rpc)
{
	/* destroy instances first */
	zend_ts_hash_destroy(instance);
	zend_ts_hash_destroy(proxy);
	zend_ts_hash_destroy(classes);

	zend_llist_destroy(classes_list);
	zend_hash_destroy(handlers);

	pefree(handlers, TRUE);
	pefree(instance, TRUE);
	pefree(proxy, TRUE);
	pefree(classes, TRUE);

	UNREGISTER_INI_ENTRIES();
	return SUCCESS;
}
/* }}} */

/* {{{ ZEND_MINFO_FUNCTION
 */
ZEND_MINFO_FUNCTION(rpc)
{
	php_info_print_table_start();
	php_info_print_table_header(2, "rpc support", "enabled");
	php_info_print_table_end();

	DISPLAY_INI_ENTRIES();
}
/* }}} */

static void rpc_instance_dtor(void *pDest)
{
	rpc_internal **intern;
	
	intern = (rpc_internal **) pDest;
	
	(*(*intern)->handlers)->rpc_dtor(&((*intern)->data));

	tsrm_mutex_free((*intern)->function_table.mx_reader);
	tsrm_mutex_free((*intern)->function_table.mx_writer);
	tsrm_mutex_free((*intern)->mx_handler);

	pefree(*intern, TRUE);
}

static void rpc_proxy_dtor(void *pDest)
{
	rpc_proxy **proxy_intern;
	
	proxy_intern = (rpc_proxy **) pDest;
	
	pefree(*proxy_intern, TRUE);
}

static void rpc_class_dtor(void *pDest)
{
	rpc_class_hash **hash;

	hash = (rpc_class_hash **) pDest;

	zend_ts_hash_destroy(&((*hash)->methods));
	zend_ts_hash_destroy(&((*hash)->properties));

	free((*hash)->name.str);
	pefree((*hash), TRUE);
}

static void rpc_string_dtor(void *pDest)
{
	rpc_string **string;

	string = (rpc_string **) pDest;

	free((*string)->str);
	pefree(*string, TRUE);
}

static zend_object_value rpc_create_object(zend_class_entry *class_type TSRMLS_DC)
{
	zend_object_value *zov;
	rpc_internal *intern;
	
	/* set up the object value struct */
	zov = (zend_object_value*) pemalloc(sizeof(zend_object_value), TRUE);
	zov->handlers = &rpc_handlers;

	/* set up the internal representation of our rpc instance */
	intern = (rpc_internal *) pemalloc(sizeof(rpc_internal), TRUE);

	intern->class_name = NULL;
	intern->class_name_len = 0;
	intern->ce = class_type;
	intern->refcount = 1;
	intern->clonecount = 1;
	intern->data = NULL;
	intern->pool_instances = 0;
	intern->function_table.hash = intern->ce->function_table;
	intern->function_table.reader = 0;
	intern->function_table.mx_reader = tsrm_mutex_alloc();
	intern->function_table.mx_writer = tsrm_mutex_alloc();
	intern->mx_handler = tsrm_mutex_alloc();

	if (zend_hash_find(handlers, class_type->name, class_type->name_length + 1, (void **) &(intern->handlers)) != SUCCESS) {
		/* TODO: exception */
	}

	/* store the instance in a hash and set the key as handle, thus
	 * we can find it later easily
	 */
	tsrm_mutex_lock(instance->mx_writer);
	{
		zov->handle = zend_hash_next_free_element(&(instance->hash));
		zend_ts_hash_next_index_insert(instance, &intern, sizeof(rpc_internal *), NULL);
	}
	tsrm_mutex_unlock(instance->mx_writer);

	return *zov;
}

static zend_object_value rpc_create_proxy(TSRMLS_D)
{
	zend_object_value *zov;
	rpc_proxy *proxy_intern;

	/* set up the object value struct */
	zov = (zend_object_value*) pemalloc(sizeof(zend_object_value), TRUE);
	zov->handlers = &rpc_proxy_handlers;

	/* set up the internal representation of the proxy */
	proxy_intern = (rpc_proxy *) pemalloc(sizeof(rpc_proxy), TRUE);

	/* store the instance in a hash and set the key as handle, thus
	 * we can find it later easily
	 */
	tsrm_mutex_lock(proxy->mx_writer);
	{
		zov->handle = zend_hash_next_free_element(&(proxy->hash));
		zend_ts_hash_next_index_insert(proxy, &proxy_intern, sizeof(rpc_proxy *), NULL);
	}
	tsrm_mutex_unlock(proxy->mx_writer);

	return *zov;
}

/* object handler */

static void rpc_add_ref(zval *object TSRMLS_DC)
{
	GET_INTERNAL(intern);
	RPC_ADDREF(intern);
}

static void rpc_del_ref(zval *object TSRMLS_DC)
{
	rpc_internal **intern;

	if (GET_INTERNAL_EX(intern, object) == SUCCESS) {
		if (RPC_REFCOUNT(intern) > 0) {
			RPC_DELREF(intern);
		}

		if (RPC_REFCOUNT(intern) == 0) {
			zend_ts_hash_index_del(instance, Z_OBJ_HANDLE(*object));
		}
	}
}

static void rpc_delete(zval *object TSRMLS_DC)
{
	rpc_internal **intern;
	
	if (GET_INTERNAL_EX(intern, object) == SUCCESS) {
		if (RPC_CLONECOUNT(intern) > 0) {
			RPC_DELCLONE(intern);
		}

		if (RPC_CLONECOUNT(intern) == 0) {
			zend_ts_hash_index_del(instance, Z_OBJ_HANDLE_P(object));
		}
	}
}

static zend_object_value rpc_clone(zval *object TSRMLS_DC)
{
	GET_INTERNAL(intern);

	/* cloning the underlaying resource is neither possible nor would it
	 * make sense, therfore we return the old zend_object_value and increase
	 * the clone count to not loose the clone when the original object gets
	 * deleted.
	 */
	RPC_ADDCLONE(intern);
	
	/* also increase the refcounter as a clone is just another reference */
	RPC_ADDREF(intern);

	return object->value.obj;
}

static zval* rpc_read(zval *object, zval *member, int type TSRMLS_DC)
{
	zval *return_value;
	GET_INTERNAL(intern);

	/* seting up the return value and decrease the refcounter as we don't
	 * keep a reference to this zval.
	 */
	MAKE_STD_ZVAL(return_value);
	ZVAL_DELREF(return_value);
	ZVAL_NULL(return_value);

	if ((*intern)->hash && Z_TYPE_P(member) == IS_LONG) {
		rpc_internal_get(*intern, NULL, Z_LVAL_P(member), return_value);
	} else if (Z_TYPE_P(member) == IS_STRING) {
		rpc_internal_get(*intern, Z_STRVAL_P(member), Z_STRLEN_P(member), return_value);
	} else {
		/* TODO: exception here */
	}

	return return_value;
}

static void rpc_write(zval *object, zval *member, zval *value TSRMLS_DC)
{
	GET_INTERNAL(intern);

	if ((*intern)->hash && Z_TYPE_P(member) == IS_LONG) {
		rpc_internal_set(*intern, NULL, Z_LVAL_P(member), value);
	} else if (Z_TYPE_P(member) == IS_STRING) {
		rpc_internal_set(*intern, Z_STRVAL_P(member), Z_STRLEN_P(member), value);
	} else {
		/* TODO: exception here */
	}
}

static zval** rpc_get_property(zval *object, zval *member TSRMLS_DC)
{
	zval **return_value;
	GET_INTERNAL(intern);

	return_value = emalloc(sizeof(zval *));
	MAKE_STD_ZVAL(*return_value);
//	ZVAL_DELREF(*return_value);
	Z_TYPE_P(object) = IS_OBJECT;
	(*return_value)->value.obj = rpc_create_proxy(TSRMLS_C);

	return return_value;
}

static zval* rpc_get(zval *property TSRMLS_DC)
{
	/* not yet implemented */
	return NULL;
}

static void rpc_set(zval **property, zval *value TSRMLS_DC)
{
	/* not yet implemented */
}

static int rpc_has_property(zval *object, zval *member, int check_empty TSRMLS_DC)
{
//	GET_INTERNAL(intern);
	
	/* FIXME */
	return FAILURE;
}

static void rpc_unset_property(zval *object, zval *member TSRMLS_DC)
{
//	GET_INTERNAL(intern);
	/* FIXME */
}

static HashTable* rpc_get_properties(zval *object TSRMLS_DC)
{
//	GET_INTERNAL(intern);

	/* FIXME */
	return NULL;
}

static union _zend_function* rpc_get_method(zval *object, char *method, int method_len TSRMLS_DC)
{
	zend_function *function;
	GET_INTERNAL(intern);

	if (zend_ts_hash_find(&((*intern)->function_table), method, method_len + 1, &function) != SUCCESS) {
		zend_internal_function *zif;

		zif = (zend_internal_function *) emalloc(sizeof(zend_internal_function));
		zif->arg_types = NULL;
		zif->function_name = method;
		zif->handler = ZEND_FN(rpc_call);
		zif->scope = NULL;
		zif->type = ZEND_INTERNAL_FUNCTION;

		/* add new method to the method table */
		zend_ts_hash_add(&((*intern)->function_table), method, method_len + 1, zif, sizeof(zend_function), &function);
		efree(zif);
	}

	return function;
}

static union _zend_function* rpc_get_constructor(zval *object TSRMLS_DC)
{
	zend_function *rpc_ctor;
	GET_INTERNAL(intern);
	
	if (zend_ts_hash_find(&((*intern)->function_table), (*intern)->ce->name, (*intern)->ce->name_length + 1, &rpc_ctor) != SUCCESS) {
		zend_internal_function *zif;

		zif = (zend_internal_function *) emalloc(sizeof(zend_internal_function));

		zif->type = ZEND_INTERNAL_FUNCTION;
		zif->function_name = (*intern)->ce->name;
		zif->scope = (*intern)->ce;
		zif->arg_types = NULL;
		zif->handler = ZEND_FN(rpc_load);

		/* add new constructor to the method table */
		zend_ts_hash_add(&((*intern)->function_table), (*intern)->ce->name, (*intern)->ce->name_length + 1, zif, sizeof(zend_function), &rpc_ctor);
		efree(zif);
	}

	return rpc_ctor;
}

static zend_class_entry** rpc_get_class_entry(zval *object TSRMLS_DC)
{
	GET_INTERNAL(intern);

	return &((*intern)->ce);
}

static int rpc_get_classname(zval *object, char **class_name, zend_uint *class_name_len, int parent TSRMLS_DC)
{
//	GET_INTERNAL(intern);

	/* FIXME */
	return FAILURE;
}

static int rpc_compare(zval *object1, zval *object2 TSRMLS_DC)
{
	/* FIXME */
	return FAILURE;
}

/**/

/* constructor */
ZEND_FUNCTION(rpc_load)
{
	zval *object = getThis();
	zval ***args, ***args_free;
	zend_uint num_args = ZEND_NUM_ARGS(); 
	rpc_class_hash *class_hash;
	rpc_class_hash **class_hash_find = NULL;
	rpc_internal **intern;
	rpc_string hash_val;
	int retval, append = 0;
	char *arg_types;

	/* check if we were called as a constructor or as a function */
	if (!object) {
		/* we were called as a function so we have to figure out which rpc layer was requested
		 * and then we have to set up a zval containing the object
		 */

		/* get class entry */
		GET_CLASS(ce);

		/* set up a new zval container */
		object = return_value;

		Z_TYPE_P(object) = IS_OBJECT;

		/* create a new object */
		object->value.obj = rpc_create_object(*ce TSRMLS_CC);

		/* now everything is set up the same way as if we were called as a constructor */
	}

	if (GET_INTERNAL_EX(intern, object) != SUCCESS) {
		/* TODO: exception */
	}

	/* fetch further parameters */
	GET_ARGS_EX(num_args, args, args_free, 1);

	/* if classname != integer */
	if ((zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 1 TSRMLS_CC, "l", &((*intern)->class_name_len)) != SUCCESS) ||
		/* or we have no hash function */
		!((*(*intern)->handlers)->rpc_hash) ||
		/* or integer hashing is not allowed */
		!((*(*intern)->handlers)->hash_type & HASH_AS_INT)) {

		/* else check for string - classname */
		if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 1 TSRMLS_CC, "s", &((*intern)->class_name), &((*intern)->class_name_len)) != SUCCESS) {
			/* none of the two possibilities */
			/* TODO: exception */
			php_error(E_WARNING, "wrong arguments for %s()", get_active_function_name(TSRMLS_C));
		} else {
			/* hash classname if hashing function exists */
			if ((*(*intern)->handlers)->rpc_hash) {

				GET_CTOR_SIGNATURE(intern, hash_val, num_args, arg_types);

				/* check if already hashed */	
				if (zend_ts_hash_find(classes, hash_val.str, hash_val.len + 1, (void **) &class_hash_find) != SUCCESS) {
					class_hash = pemalloc(sizeof(rpc_class_hash), TRUE);

					/* set up the cache */
					zend_ts_hash_init(&(class_hash->methods), 0, NULL, rpc_string_dtor, TRUE);
					zend_ts_hash_init(&(class_hash->properties), 0, NULL, rpc_string_dtor, TRUE);


					/* do hashing */
					if ((*(*intern)->handlers)->rpc_hash((*intern)->class_name, (*intern)->class_name_len, &(class_hash->name.str),
														 &(class_hash->name.len), num_args, arg_types, CLASS) != SUCCESS) {
						/* TODO: exception */
					}

					/* register with non-hashed key 
					 * also track all instaces in a llist for destruction later on, because there might be duplicate entries in
					 * the hashtable and we can't determine if a pointer references to an already freed element
					 */
					zend_ts_hash_add(classes, hash_val.str, hash_val.len + 1, &class_hash, sizeof(rpc_class_hash *), (void **) &class_hash_find);
					tsrm_mutex_lock(classes->mx_writer);
					zend_llist_add_element(classes_list, class_hash_find);
					tsrm_mutex_unlock(classes->mx_writer);

					if (class_hash->name.str) {
						/* register string hashcode */
						zend_ts_hash_add(classes, class_hash->name.str, class_hash->name.len + 1, &class_hash, sizeof(rpc_class_hash *), NULL);
					} else if (!class_hash->name.str && ((*(*intern)->handlers)->hash_type & HASH_AS_INT)) {
						/* register int hashcode */
						zend_ts_hash_index_update(classes, class_hash->name.len, &class_hash, sizeof(rpc_class_hash *), NULL);
					}
				} else {
					class_hash = *class_hash_find;
				}

				FREE_SIGNATURE(hash_val, arg_types);
			}
		}
	} else {
		/* integer classname (hashcode) */
		if (zend_ts_hash_index_find(classes, (*intern)->class_name_len, (void**) &class_hash_find) != SUCCESS) {
			class_hash = pemalloc(sizeof(rpc_class_hash), TRUE);

			/* set up the cache */
			class_hash->name.str = NULL;
			class_hash->name.len = (*intern)->class_name_len;

			zend_ts_hash_init(&(class_hash->methods), 0, NULL, rpc_string_dtor, TRUE);
			zend_ts_hash_init(&(class_hash->properties), 0, NULL, rpc_string_dtor, TRUE);

			/* register int hashcode, we don't know more */
			zend_ts_hash_index_update(classes, class_hash->name.len, &class_hash, sizeof(rpc_class_hash *), NULL);
		} else {
			class_hash = *class_hash_find;
		}
	}
	
	/* if hash function available */
	if ((*(*intern)->handlers)->rpc_hash) {
		/* assign cache structure */
		(*intern)->hash = class_hash;
		
		/* call the rpc ctor */
		retval = (*(*intern)->handlers)->rpc_ctor(class_hash->name.str, class_hash->name.len, &((*intern)->data), num_args, args);
	} else {
		/* disable caching from now on */
		(*intern)->hash = NULL;

		/* call the rpc ctor */
		retval = (*(*intern)->handlers)->rpc_ctor((*intern)->class_name, (*intern)->class_name_len, &((*intern)->data), num_args, args);
	}

	efree(args_free);

	if (retval != SUCCESS) {
		/* TODO: exception */
	}
}

ZEND_FUNCTION(rpc_call)
{
	zval *object = getThis();
	zval ***args, ***args_free;
	zend_uint num_args = ZEND_NUM_ARGS(); 
	char *hash = NULL, *arg_types;
	int hash_len, retval, strip = 0;

	/* check if we were called as a method or as a function */
	if (!object) {
		/* we were called as a function so we have to figure out which rpc layer was requested */

		/* get class entry */
		GET_CLASS(ce);

		if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2 TSRMLS_CC, "Ol", &object, *ce, &hash_len) != SUCCESS) {
			if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2 TSRMLS_CC, "Os", &object, *ce, &hash, &hash_len) != SUCCESS) {
				/* none of the two possibilities */
				/* TODO: exception */
				php_error(E_WARNING, "wrong arguments for %s()", get_active_function_name(TSRMLS_C));
			}
		}

		strip = 2;
	} else {
		hash = get_active_function_name(TSRMLS_C);
		hash_len = strlen(hash);
	}

	GET_ARGS_EX(num_args, args, args_free, strip);
	
	/* scope for internal data */
	{
		rpc_string hash_val, *method_hash, **method_hash_find;
		GET_INTERNAL(intern);

		method_hash = (rpc_string *) pemalloc(sizeof(rpc_string), TRUE);
		method_hash->str = hash;
		method_hash->len = hash_len;
		
		if ((*intern)->hash) {
			/* cache method table lookups */
		
			if (!hash && !((*(*intern)->handlers)->hash_type & HASH_AS_INT)) {
				/* TODO: exception */
			} else if(hash) {
				/* string passed */
				GET_METHOD_SIGNATURE(intern, method_hash, hash_val, num_args, arg_types);

				/* check if already hashed */	
				if (zend_ts_hash_find(&((*intern)->hash->methods), hash_val.str, hash_val.len + 1, (void **) &method_hash_find) != SUCCESS) {
					if ((*(*intern)->handlers)->rpc_hash(hash, hash_len, &(method_hash->str), &(method_hash->len), num_args, arg_types, METHOD) != SUCCESS) {
						/* TODO: exception */
					}

					/* register with non-hashed key */
					zend_ts_hash_add(&((*intern)->hash->methods), hash_val.str, hash_val.len + 1, &method_hash, sizeof(rpc_string *), NULL);
				} else {
					pefree(method_hash, TRUE);
					method_hash = *method_hash_find;
				}

				FREE_SIGNATURE(hash_val, arg_types);
			}
		}

		/* actually this should not be neccesary, but who knows :)
		 * considering possible thread implementations in future php versions
		 * and srm it is better to do concurrency checks
		 */
		tsrm_mutex_lock((*intern)->mx_handler);
		retval = (*(*intern)->handlers)->rpc_call(method_hash->str, method_hash->len, &((*intern)->data), &return_value, num_args, args);
		tsrm_mutex_unlock((*intern)->mx_handler);
	}

	efree(args_free);

	if (retval != SUCCESS) {
		/* TODO: exception here */
	}
}

ZEND_FUNCTION(rpc_set)
{
	zval *object, *value;
	char *property = NULL;
	int property_len;
	rpc_internal **intern;
	/* get class entry */
	GET_CLASS(ce);

	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 3 TSRMLS_CC, "Olz", &object, *ce, &property_len, &value) != SUCCESS) {
		if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 3 TSRMLS_CC, "Osz", &object, *ce, &property, &property_len, &value) != SUCCESS) {
			/* none of the two possibilities */
			/* TODO: exception */
			php_error(E_WARNING, "wrong arguments for %s()", get_active_function_name(TSRMLS_C));
		}
	}

	GET_INTERNAL_EX(intern, object);
	if (!property && !(*intern)->hash) {
		/* TODO: exception here */
	} else {
		rpc_internal_set(*intern, property, property_len, value);
	}
}

ZEND_FUNCTION(rpc_get)
{
	zval *object;
	char *property = NULL;
	int property_len;
	rpc_internal **intern;
	/* get class entry */
	GET_CLASS(ce);

	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2 TSRMLS_CC, "Ol", &object, *ce, &property_len) != SUCCESS) {
		if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2 TSRMLS_CC, "Os", &object, *ce, &property, &property_len) != SUCCESS) {
			/* none of the two possibilities */
			/* TODO: exception */
			php_error(E_WARNING, "wrong arguments for %s()", get_active_function_name(TSRMLS_C));
		}
	}

	GET_INTERNAL_EX(intern, object);
	if (!property && !(*intern)->hash) {
		/* TODO: exception here */
	} else {
		rpc_internal_get(*intern, property, property_len, return_value);
	}
}

static void rpc_internal_get(rpc_internal *intern, char *property, zend_uint property_len, zval *return_value)
{
	int retval;
	rpc_string *property_hash, **property_hash_find;

	Z_TYPE_P(return_value) = IS_NULL;

	property_hash = (rpc_string *) pemalloc(sizeof(rpc_string), TRUE);
	property_hash->str = property;
	property_hash->len = property_len;
	
	if (intern->hash) {
		/* cache method table lookups */
	
		if (!property && !((*intern->handlers)->hash_type & HASH_AS_INT)) {
			/* TODO: exception */
		} else if(property) {
			/* check if already hashed */	
			if (zend_ts_hash_find(&(intern->hash->properties), property, property_len + 1, (void **) &property_hash_find) != SUCCESS) {
				if ((*intern->handlers)->rpc_hash(property, property_len, &(property_hash->str), &(property_hash->len), 0, NULL, PROPERTY) != SUCCESS) {
					/* TODO: exception */
				}

				/* register with non-hashed key */
				zend_ts_hash_add(&(intern->hash->properties), property, property_len + 1, &property_hash, sizeof(rpc_string *), NULL);
			} else {
				pefree(property_hash, TRUE);
				property_hash = *property_hash_find;
			}
		}
	}


	tsrm_mutex_lock(intern->mx_handler);
	retval = (*intern->handlers)->rpc_get(property_hash->str, property_hash->len, return_value, intern->data);
	tsrm_mutex_unlock(intern->mx_handler);

	if (retval != SUCCESS) {
		/* TODO: exception here */
	}
}

static void rpc_internal_set(rpc_internal *intern, char *property, zend_uint property_len, zval *value)
{
	int retval;

	tsrm_mutex_lock(intern->mx_handler);
	retval = (*intern->handlers)->rpc_set(property, property_len, value, intern->data);
	tsrm_mutex_unlock(intern->mx_handler);

	if (retval != SUCCESS) {
		/* TODO: exception here */
	}
}

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */