X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-propro;a=blobdiff_plain;f=src%2Fphp_propro_api.c;fp=src%2Fphp_propro_api.c;h=d7232b36b3a4b2025360667ee07f597ac8a9abe9;hp=0000000000000000000000000000000000000000;hb=8e6c28e6e5c9ef473c705f49a4b9f30ed774231b;hpb=a675e6fcb7ac533f9035dfe349633dcc2b2cce4f

diff --git a/src/php_propro_api.c b/src/php_propro_api.c
new file mode 100644
index 0000000..d7232b3
--- /dev/null
+++ b/src/php_propro_api.c
@@ -0,0 +1,590 @@
+/*
+    +--------------------------------------------------------------------+
+    | PECL :: propro                                                     |
+    +--------------------------------------------------------------------+
+    | Redistribution and use in source and binary forms, with or without |
+    | modification, are permitted provided that the conditions mentioned |
+    | in the accompanying LICENSE file are met.                          |
+    +--------------------------------------------------------------------+
+    | Copyright (c) 2013 Michael Wallner <mike@php.net>                  |
+    +--------------------------------------------------------------------+
+*/
+
+
+#ifdef HAVE_CONFIG_H
+#	include "config.h"
+#endif
+
+#include <php.h>
+#include <ext/standard/info.h>
+
+#include "php_propro_api.h"
+
+#if PHP_VERSION_ID < 50500
+#undef SUCCESS
+#undef FAILURE
+typedef enum {
+	SUCCESS = 0,
+	FAILURE = -1
+} ZEND_RESULT_CODE;
+#endif
+
+#define DEBUG_PROPRO 0
+
+#if PHP_VERSION_ID < 50400
+#	define object_properties_init(o, ce) \
+	zend_hash_copy(((zend_object *) o)->properties, &(ce->default_properties), \
+			(copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval*))
+#endif
+
+php_property_proxy_t *php_property_proxy_init(zval *container,
+		const char *member_str, size_t member_len TSRMLS_DC)
+{
+	php_property_proxy_t *proxy = ecalloc(1, sizeof(*proxy));
+
+	Z_ADDREF_P(container);
+	proxy->container = container;
+	proxy->member_str = estrndup(member_str, member_len);
+	proxy->member_len = member_len;
+
+	return proxy;
+}
+
+void php_property_proxy_free(php_property_proxy_t **proxy)
+{
+	if (*proxy) {
+		zval_ptr_dtor(&(*proxy)->container);
+		efree((*proxy)->member_str);
+		efree(*proxy);
+		*proxy = NULL;
+	}
+}
+
+static zend_class_entry *php_property_proxy_class_entry;
+static zend_object_handlers php_property_proxy_object_handlers;
+
+zend_class_entry *php_property_proxy_get_class_entry(void)
+{
+	return php_property_proxy_class_entry;
+}
+
+zend_object_value php_property_proxy_object_new(zend_class_entry *ce TSRMLS_DC)
+{
+	return php_property_proxy_object_new_ex(ce, NULL, NULL TSRMLS_CC);
+}
+
+static void php_property_proxy_object_free(void *object TSRMLS_DC)
+{
+	php_property_proxy_object_t *o = object;
+
+#if DEBUG_PROPRO
+	fprintf(stderr, "#PP %p free\n", o);
+#endif
+
+	if (o->proxy) {
+		php_property_proxy_free(&o->proxy);
+	}
+	if (o->parent) {
+		zend_objects_store_del_ref_by_handle_ex(o->parent->zv.handle,
+				o->parent->zv.handlers TSRMLS_CC);
+		o->parent = NULL;
+	}
+	zend_object_std_dtor((zend_object *) o TSRMLS_CC);
+	efree(o);
+}
+
+zend_object_value php_property_proxy_object_new_ex(zend_class_entry *ce,
+		php_property_proxy_t *proxy, php_property_proxy_object_t **ptr TSRMLS_DC)
+{
+	php_property_proxy_object_t *o;
+
+	o = ecalloc(1, sizeof(*o));
+	zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
+	object_properties_init((zend_object *) o, ce);
+
+	if (ptr) {
+		*ptr = o;
+	}
+	o->proxy = proxy;
+
+	o->zv.handle = zend_objects_store_put(o, NULL,
+			php_property_proxy_object_free, NULL TSRMLS_CC);
+	o->zv.handlers = &php_property_proxy_object_handlers;
+
+#if DEBUG_PROPRO
+	fprintf(stderr, "#PP %p init\n", o);
+#endif
+
+	return o->zv;
+}
+
+#if DEBUG_PROPRO
+/* we do not really care about TS when debugging */
+static int level = 1;
+static const char space[] = "                               ";
+static const char *inoutstr[] = {"< return",""," > enter"};
+static void _walk(php_property_proxy_object_t *obj TSRMLS_DC)
+{
+	if (obj) {
+		_walk(obj->parent TSRMLS_CC);
+		fprintf(stderr, ".%s", obj->proxy->member_str);
+	}
+}
+
+static void debug_propro(int inout, const char *f, zval *object, zval *offset,
+		zval *value TSRMLS_DC)
+{
+	php_property_proxy_object_t *obj;
+
+	obj = zend_object_store_get_object(object TSRMLS_CC);
+	fprintf(stderr, "#PP %p %s %s %s ", obj, &space[sizeof(space)-level],
+			inoutstr[inout+1], f);
+
+	level += inout;
+
+	_walk(obj TSRMLS_CC);
+
+	if (*f++=='d'
+	&&	*f++=='i'
+	&&	*f++=='m'
+	) {
+		char *offset_str = "[]";
+		zval *o = offset;
+
+		if (o) {
+			convert_to_string_ex(&o);
+			offset_str = Z_STRVAL_P(o);
+		}
+
+		fprintf(stderr, ".%s", offset_str);
+
+		if (o && o != offset) {
+			zval_ptr_dtor(&o);
+		}
+	}
+	if (value) {
+		const char *t[] = {
+				"NULL",
+				"int",
+				"float",
+				"bool",
+				"Array",
+				"Object",
+				"string",
+				"resource",
+				"const",
+				"const Array",
+				"callable"
+		};
+		fprintf(stderr, " = (%s) ", t[Z_TYPE_P(value)&0xf]);
+		zend_print_flat_zval_r(value TSRMLS_CC);
+	}
+
+	fprintf(stderr, "\n");
+}
+#else
+#define debug_propro(l, f, obj, off, val)
+#endif
+
+static zval *get_parent_proxied_value(zval *object TSRMLS_DC);
+static zval *get_proxied_value(zval *object TSRMLS_DC);
+static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC);
+static ZEND_RESULT_CODE cast_proxied_value(zval *object, zval *return_value,
+		int type TSRMLS_DC);
+static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC);
+static void set_proxied_value(zval **object, zval *value TSRMLS_DC);
+
+static zval *get_parent_proxied_value(zval *object TSRMLS_DC)
+{
+	zval *value = NULL;
+	php_property_proxy_object_t *obj;
+
+	obj = zend_object_store_get_object(object TSRMLS_CC);
+	if (obj->proxy) {
+		if (obj->parent) {
+			zval *parent;
+
+			MAKE_STD_ZVAL(parent);
+			parent->type = IS_OBJECT;
+			parent->value.obj = obj->parent->zv;
+			zend_objects_store_add_ref_by_handle(
+					obj->parent->zv.handle TSRMLS_CC);
+			value = get_proxied_value(parent TSRMLS_CC);
+			zval_ptr_dtor(&parent);
+		}
+	}
+
+	return value;
+}
+
+static zval *get_proxied_value(zval *object TSRMLS_DC)
+{
+	zval **hash_value, *value = NULL;
+	php_property_proxy_object_t *obj;
+	ZEND_RESULT_CODE rv;
+
+	obj = zend_object_store_get_object(object TSRMLS_CC);
+	debug_propro(1, "get", object, NULL, NULL TSRMLS_CC);
+
+	if (obj->proxy) {
+		if (obj->parent) {
+			zval *parent_value = get_parent_proxied_value(object TSRMLS_CC);
+
+			if (parent_value && parent_value != obj->proxy->container) {
+				Z_ADDREF_P(parent_value);
+				zval_ptr_dtor(&obj->proxy->container);
+				obj->proxy->container = parent_value;
+			}
+		}
+		switch (Z_TYPE_P(obj->proxy->container)) {
+		case IS_OBJECT:
+			value = zend_read_property(Z_OBJCE_P(obj->proxy->container),
+					obj->proxy->container, obj->proxy->member_str,
+					obj->proxy->member_len, 0 TSRMLS_CC);
+			break;
+
+		case IS_ARRAY:
+			rv = zend_symtable_find(Z_ARRVAL_P(obj->proxy->container),
+					obj->proxy->member_str, obj->proxy->member_len + 1,
+					(void *) &hash_value);
+
+			if (SUCCESS == rv) {
+				value = *hash_value;
+			}
+			break;
+		}
+	}
+
+	debug_propro(-1, "get", object, NULL, value TSRMLS_CC);
+
+	return value;
+}
+
+static ZEND_RESULT_CODE cast_proxied_value(zval *object, zval *return_value,
+		int type TSRMLS_DC)
+{
+	zval *proxied_value;
+
+	if ((proxied_value = get_proxied_value(object TSRMLS_CC))) {
+		RETVAL_ZVAL(proxied_value, 1, 0);
+		if (Z_TYPE_P(proxied_value) != type) {
+			convert_to_explicit_type(return_value, type);
+		}
+		return SUCCESS;
+	}
+
+	return FAILURE;
+}
+
+static void set_proxied_value(zval **object, zval *value TSRMLS_DC)
+{
+	php_property_proxy_object_t *obj;
+
+	obj = zend_object_store_get_object(*object TSRMLS_CC);
+	debug_propro(1, "set", *object, NULL, value TSRMLS_CC);
+
+	if (obj->proxy) {
+		if (obj->parent) {
+			zval *parent_value = get_parent_proxied_value(*object TSRMLS_CC);
+
+			if (parent_value && parent_value != obj->proxy->container) {
+				Z_ADDREF_P(parent_value);
+				zval_ptr_dtor(&obj->proxy->container);
+				obj->proxy->container = parent_value;
+			}
+		}
+
+		switch (Z_TYPE_P(obj->proxy->container)) {
+		case IS_OBJECT:
+			zend_update_property(Z_OBJCE_P(obj->proxy->container),
+					obj->proxy->container, obj->proxy->member_str,
+					obj->proxy->member_len, value TSRMLS_CC);
+			break;
+
+		case IS_ARRAY:
+			Z_ADDREF_P(value);
+			zend_symtable_update(Z_ARRVAL_P(obj->proxy->container),
+					obj->proxy->member_str, obj->proxy->member_len + 1,
+					(void *) &value, sizeof(zval *), NULL);
+			break;
+		}
+
+		if (obj->parent) {
+			zval *zparent;
+			MAKE_STD_ZVAL(zparent);
+			zparent->type = IS_OBJECT;
+			zparent->value.obj = obj->parent->zv;
+			zend_objects_store_add_ref_by_handle(
+					obj->parent->zv.handle TSRMLS_CC);
+			set_proxied_value(&zparent, obj->proxy->container TSRMLS_CC);
+			zval_ptr_dtor(&zparent);
+		}
+	}
+
+	debug_propro(-1, "set", *object, NULL, NULL TSRMLS_CC);
+}
+
+static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC)
+{
+	zval *value = NULL;
+	zval *proxied_value;
+	zval *o = offset;
+
+	debug_propro(1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object,
+			offset, NULL TSRMLS_CC);
+
+	proxied_value = get_proxied_value(object TSRMLS_CC);
+	convert_to_string_ex(&o);
+
+	if (BP_VAR_R == type && proxied_value) {
+		if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
+			zval **hash_value;
+			ZEND_RESULT_CODE rv = zend_symtable_find(Z_ARRVAL_P(proxied_value),
+					Z_STRVAL_P(o), Z_STRLEN_P(o), (void *) &hash_value);
+
+			if (SUCCESS == rv) {
+				Z_ADDREF_PP(hash_value);
+				value = *hash_value;
+			}
+		}
+	} else {
+		php_property_proxy_t *proxy;
+		php_property_proxy_object_t *proxy_obj;
+
+		if (proxied_value) {
+			convert_to_array(proxied_value);
+			Z_ADDREF_P(proxied_value);
+		} else {
+			MAKE_STD_ZVAL(proxied_value);
+			array_init(proxied_value);
+			set_proxied_value(&object, proxied_value TSRMLS_CC);
+		}
+
+		proxy = php_property_proxy_init(proxied_value, Z_STRVAL_P(o),
+				Z_STRLEN_P(o) TSRMLS_CC);
+		zval_ptr_dtor(&proxied_value);
+		MAKE_STD_ZVAL(value);
+		Z_SET_REFCOUNT_P(value, 0);
+		value->type = IS_OBJECT;
+		value->value.obj = php_property_proxy_object_new_ex(
+				php_property_proxy_get_class_entry(), proxy,
+				&proxy_obj TSRMLS_CC);
+		proxy_obj->parent = zend_object_store_get_object(object TSRMLS_CC);
+		zend_objects_store_add_ref_by_handle(
+				proxy_obj->parent->zv.handle TSRMLS_CC);
+	}
+	if (o && o != offset) {
+		zval_ptr_dtor(&o);
+	}
+
+	debug_propro(-1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object,
+			offset, value TSRMLS_CC);
+
+	return value;
+}
+
+static int has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC)
+{
+	zval *proxied_value;
+	int exists = 0;
+
+	debug_propro(1, "dim_exists", object, offset, NULL TSRMLS_CC);
+
+	proxied_value = get_proxied_value(object TSRMLS_CC);
+	if (!proxied_value) {
+		exists = 0;
+	} else {
+		zval *o = offset;
+
+		convert_to_string_ex(&o);
+
+		if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
+			zval **zentry;
+			ZEND_RESULT_CODE rv = zend_symtable_find(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o) + 1, (void *) &zentry);
+
+			if (SUCCESS != rv) {
+				exists = 0;
+			} else {
+				if (check_empty) {
+					exists = Z_TYPE_PP(zentry) != IS_NULL;
+				} else {
+					exists = 1;
+				}
+			}
+		}
+
+		if (o != offset) {
+			zval_ptr_dtor(&o);
+		}
+	}
+
+	debug_propro(-1, "dim_exists", object, offset, NULL TSRMLS_CC);
+
+	return exists;
+}
+
+static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC)
+{
+	zval *proxied_value, *o = offset;
+
+	debug_propro(1, "dim_write", object, offset, value TSRMLS_CC);
+
+	proxied_value = get_proxied_value(object TSRMLS_CC);
+
+	if (proxied_value) {
+		convert_to_array(proxied_value);
+		Z_ADDREF_P(proxied_value);
+	} else {
+		MAKE_STD_ZVAL(proxied_value);
+		array_init(proxied_value);
+	}
+
+	if (Z_REFCOUNT_P(value) > 1) {
+		SEPARATE_ZVAL(&value);
+	}
+	Z_ADDREF_P(value);
+
+	if (o) {
+		convert_to_string_ex(&o);
+		zend_symtable_update(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o),
+				Z_STRLEN_P(o) + 1, (void *) &value, sizeof(zval *), NULL);
+	} else {
+		zend_hash_next_index_insert(Z_ARRVAL_P(proxied_value), (void *) &value,
+				sizeof(zval *), NULL);
+	}
+
+	if (o && o != offset) {
+		zval_ptr_dtor(&o);
+	}
+
+	set_proxied_value(&object, proxied_value TSRMLS_CC);
+
+	debug_propro(-1, "dim_write", object, offset, proxied_value TSRMLS_CC);
+
+	zval_ptr_dtor(&proxied_value);
+}
+
+static void unset_dimension(zval *object, zval *offset TSRMLS_DC)
+{
+	zval *proxied_value;
+
+	debug_propro(1, "dim_unset", object, offset, NULL TSRMLS_CC);
+
+	proxied_value = get_proxied_value(object TSRMLS_CC);
+
+	if (proxied_value && Z_TYPE_P(proxied_value) == IS_ARRAY) {
+		zval *o = offset;
+		ZEND_RESULT_CODE rv;
+
+		convert_to_string_ex(&o);
+		rv = zend_symtable_del(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o),
+				Z_STRLEN_P(o) + 1);
+
+		if (SUCCESS == rv) {
+			set_proxied_value(&object, proxied_value TSRMLS_CC);
+		}
+
+		if (o != offset) {
+			zval_ptr_dtor(&o);
+		}
+	}
+
+	debug_propro(-1, "dim_unset", object, offset, proxied_value TSRMLS_CC);
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_propro_construct, 0, 0, 2)
+	ZEND_ARG_INFO(1, object)
+	ZEND_ARG_INFO(0, member)
+	ZEND_ARG_OBJ_INFO(0, parent, php\\PropertyProxy, 1)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(propro, __construct) {
+	zend_error_handling zeh;
+	zval *container, *parent = NULL;
+	char *member_str;
+	int member_len;
+
+	zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+	if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zs|O!",
+			&container, &member_str, &member_len, &parent,
+			php_property_proxy_class_entry)) {
+		php_property_proxy_object_t *obj;
+
+		obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+		obj->proxy = php_property_proxy_init(container, member_str,
+				member_len TSRMLS_CC);
+		if (parent) {
+			zend_objects_store_add_ref(parent TSRMLS_CC);
+			obj->parent = zend_object_store_get_object(parent TSRMLS_CC);
+		}
+	}
+	zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
+static const zend_function_entry php_property_proxy_method_entry[] = {
+	PHP_ME(propro, __construct, ai_propro_construct, ZEND_ACC_PUBLIC)
+	{0}
+};
+
+static PHP_MINIT_FUNCTION(propro)
+{
+	zend_class_entry ce = {0};
+
+	INIT_NS_CLASS_ENTRY(ce, "php", "PropertyProxy",
+			php_property_proxy_method_entry);
+	php_property_proxy_class_entry = zend_register_internal_class_ex(&ce, NULL,
+			NULL TSRMLS_CC);
+	php_property_proxy_class_entry->create_object =
+			php_property_proxy_object_new;
+	php_property_proxy_class_entry->ce_flags |= ZEND_ACC_FINAL_CLASS;
+
+	memcpy(&php_property_proxy_object_handlers, zend_get_std_object_handlers(),
+			sizeof(zend_object_handlers));
+	php_property_proxy_object_handlers.set = set_proxied_value;
+	php_property_proxy_object_handlers.get = get_proxied_value;
+	php_property_proxy_object_handlers.cast_object = cast_proxied_value;
+	php_property_proxy_object_handlers.read_dimension = read_dimension;
+	php_property_proxy_object_handlers.write_dimension = write_dimension;
+	php_property_proxy_object_handlers.has_dimension = has_dimension;
+	php_property_proxy_object_handlers.unset_dimension = unset_dimension;
+
+	return SUCCESS;
+}
+
+PHP_MINFO_FUNCTION(propro)
+{
+	php_info_print_table_start();
+	php_info_print_table_header(2, "Property proxy support", "enabled");
+	php_info_print_table_row(2, "Extension version", PHP_PROPRO_VERSION);
+	php_info_print_table_end();
+}
+
+static const zend_function_entry propro_functions[] = {
+	{0}
+};
+
+zend_module_entry propro_module_entry = {
+	STANDARD_MODULE_HEADER,
+	"propro",
+	propro_functions,
+	PHP_MINIT(propro),
+	NULL,
+	NULL,
+	NULL,
+	PHP_MINFO(propro),
+	PHP_PROPRO_VERSION,
+	STANDARD_MODULE_PROPERTIES
+};
+
+#ifdef COMPILE_DL_PROPRO
+ZEND_GET_MODULE(propro)
+#endif
+
+
+/*
+ * 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
+ */