X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-propro;a=blobdiff_plain;f=php_propro.h;fp=php_propro.h;h=669529be976019cf379d8bcfc20b38f3619ac46c;hp=35188547e9a2db2bf6cffbc9c74389ee61b1a7c7;hb=36da2074d28309d1704b47e121f432fcdaf8a245;hpb=6efaa7c324c0bb32883fa7439182d5f8d0736f6b diff --git a/php_propro.h b/php_propro.h index 3518854..669529b 100644 --- a/php_propro.h +++ b/php_propro.h @@ -13,44 +13,143 @@ #ifndef PHP_PROPRO_H #define PHP_PROPRO_H +#ifndef DOXYGEN + extern zend_module_entry propro_module_entry; #define phpext_propro_ptr &propro_module_entry -#define PHP_PROPRO_VERSION "1.0.0" +#define PHP_PROPRO_VERSION "1.0.1" #ifdef PHP_WIN32 # define PHP_PROPRO_API __declspec(dllexport) #elif defined(__GNUC__) && __GNUC__ >= 4 -# define PHP_PROPRO_API __attribute__ ((visibility("default"))) +# define PHP_PROPRO_API extern __attribute__ ((visibility("default"))) #else -# define PHP_PROPRO_API +# define PHP_PROPRO_API extern #endif #ifdef ZTS # include #endif -typedef struct php_property_proxy { +#endif + +/** + * The internal property proxy. + * + * Container for the object/array holding the proxied property. + */ +struct php_property_proxy { + /** The container holding the property */ zval *container; + /** The name of the proxied property */ char *member_str; + /** The length of the name */ size_t member_len; -} php_property_proxy_t; +}; +typedef struct php_property_proxy php_property_proxy_t; -typedef struct php_property_proxy_object { +/** + * The userland object. + * + * Return an object instance of php\\PropertyProxy to make your C-struct + * member accessible by reference from PHP userland. + * + * Example: + * ~~~~~~~~~~{.c} + * static zval *my_read_prop(zval *object, zval *member, int type, zend_literal *key TSRMLS_DC) + * { + * my_object_t *obj = zend_object_store_get_object(object TSRMLS_CC); + * my_prophandler_t *handler; + * zval *return_value, *copy = my_cast(IS_STRING, member); + * + * if (SUCCESS == my_get_prophandler(Z_STRVAL_P(copy), Z_STRLEN_P(copy), &handler)) { + * ALLOC_ZVAL(return_value); + * Z_SET_REFCOUNT_P(return_value, 0); + * Z_UNSET_ISREF_P(return_value); + * + * if (type == BP_VAR_R) { + * handler->read(obj, return_value TSRMLS_CC); + * } else { + * // + * // This is the interesting part + * // + * php_property_proxy_t *proxy; + * zend_object_value proxy_ov; + * zend_class_entry *proxy_ce; + * + * proxy = php_property_proxy_init(object, Z_STRVAL_P(copy), Z_STRLEN_P(copy) TSRMLS_CC); + * proxy_ce = php_property_proxy_get_class_entry(); + * proxy_ov = php_property_proxy_object_new_ex(proxy_ce, proxy, NULL TSRMLS_CC); + * RETVAL_OBJVAL(proxy_ov, 0); + * } + * } else { + * zend_object_handlers *oh = zend_get_std_object_handlers(); + * return_value = oh->read_property(object, member, type, key TSRMLS_CC); + * } + * + * zval_ptr_dtor(©); + * + * return return_value; + * } + * ~~~~~~~~~~ + */ +struct php_property_proxy_object { + /** The std zend_object */ zend_object zo; + /** The object value for easy zval creation */ zend_object_value zv; + /** The actual property proxy */ php_property_proxy_t *proxy; + /** A reference to any parent property proxy object */ struct php_property_proxy_object *parent; -} php_property_proxy_object_t; +}; +typedef struct php_property_proxy_object php_property_proxy_object_t; +/** + * Create a property proxy + * + * The property proxy will forward reads and writes to itself to the + * proxied property with name \a member_str of \a container. + * + * @param container the container holding the property + * @param member_str the name of the proxied property + * @param member_len the length of the name + * @return a new property proxy + */ PHP_PROPRO_API php_property_proxy_t *php_property_proxy_init(zval *container, const char *member_str, size_t member_len TSRMLS_DC); + +/** + * Destroy and free a property proxy. + * + * The destruction of the property proxy object calls this. + * + * @param proxy a pointer to the allocated property proxy + */ PHP_PROPRO_API void php_property_proxy_free(php_property_proxy_t **proxy); +/** + * Get the zend_class_entry of php\\PropertyProxy + * @return the class entry pointer + */ PHP_PROPRO_API zend_class_entry *php_property_proxy_get_class_entry(void); +/** + * Instantiate a new php\\PropertyProxy + * @param ce the property proxy or derived class entry + * @return the zval object value + */ PHP_PROPRO_API zend_object_value php_property_proxy_object_new( zend_class_entry *ce TSRMLS_DC); + +/** + * Instantiate a new php\\PropertyProxy with \a proxy + * @param ce the property proxy or derived class entry + * @param proxy the internal property proxy + * @param ptr a pointer to store the resulting property proxy object + * @return the zval object value + */ PHP_PROPRO_API 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);