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php-src/ext/spl/spl_observer.c

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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2008 The PHP Group |
+----------------------------------------------------------------------+
| This source file is SplSubject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_var.h"
#include "ext/standard/php_smart_str.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
#include "spl_observer.h"
#include "spl_iterators.h"
#include "spl_array.h"
#include "spl_exceptions.h"
SPL_METHOD(SplObserver, update);
SPL_METHOD(SplSubject, attach);
SPL_METHOD(SplSubject, detach);
SPL_METHOD(SplSubject, notify);
ZEND_BEGIN_ARG_INFO(arginfo_SplObserver_update, 0)
ZEND_ARG_OBJ_INFO(0, SplSubject, SplSubject, 0)
ZEND_END_ARG_INFO();
static const zend_function_entry spl_funcs_SplObserver[] = {
SPL_ABSTRACT_ME(SplObserver, update, arginfo_SplObserver_update)
{NULL, NULL, NULL}
};
ZEND_BEGIN_ARG_INFO(arginfo_SplSubject_attach, 0)
ZEND_ARG_OBJ_INFO(0, SplObserver, SplObserver, 0)
ZEND_END_ARG_INFO();
/*ZEND_BEGIN_ARG_INFO_EX(arginfo_SplSubject_notify, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, ignore, SplObserver, 1)
ZEND_END_ARG_INFO();*/
static const zend_function_entry spl_funcs_SplSubject[] = {
SPL_ABSTRACT_ME(SplSubject, attach, arginfo_SplSubject_attach)
SPL_ABSTRACT_ME(SplSubject, detach, arginfo_SplSubject_attach)
SPL_ABSTRACT_ME(SplSubject, notify, NULL)
{NULL, NULL, NULL}
};
PHPAPI zend_class_entry *spl_ce_SplObserver;
PHPAPI zend_class_entry *spl_ce_SplSubject;
PHPAPI zend_class_entry *spl_ce_SplObjectStorage;
PHPAPI zend_class_entry *spl_ce_MultipleIterator;
PHPAPI zend_object_handlers spl_handler_SplObjectStorage;
typedef struct _spl_SplObjectStorage { /* {{{ */
zend_object std;
HashTable storage;
long index;
HashPosition pos;
long flags;
} spl_SplObjectStorage; /* }}} */
/* {{{ storage is an assoc aray of [zend_object_value]=>[zval *obj, zval *inf] */
typedef struct _spl_SplObjectStorageElement {
zval* obj;
zval* inf;
} spl_SplObjectStorageElement; /* }}} */
void spl_SplOjectStorage_free_storage(void *object TSRMLS_DC) /* {{{ */
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage *)object;
zend_object_std_dtor(&intern->std TSRMLS_CC);
zend_hash_destroy(&intern->storage);
efree(object);
} /* }}} */
static void spl_object_storage_dtor(spl_SplObjectStorageElement *element) /* {{{ */
{
zval_ptr_dtor(&element->obj);
zval_ptr_dtor(&element->inf);
} /* }}} */
static zend_object_value spl_object_storage_new_ex(zend_class_entry *class_type, spl_SplObjectStorage **obj, zval *orig TSRMLS_DC) /* {{{ */
{
zend_object_value retval;
spl_SplObjectStorage *intern;
zval *tmp;
intern = emalloc(sizeof(spl_SplObjectStorage));
memset(intern, 0, sizeof(spl_SplObjectStorage));
*obj = intern;
zend_object_std_init(&intern->std, class_type TSRMLS_CC);
zend_hash_copy(intern->std.properties, &class_type->default_properties, (copy_ctor_func_t) zval_add_ref, (void *) &tmp, sizeof(zval *));
zend_hash_init(&intern->storage, 0, NULL, (void (*)(void *))spl_object_storage_dtor, 0);
retval.handle = zend_objects_store_put(intern, (zend_objects_store_dtor_t)zend_objects_destroy_object, (zend_objects_free_object_storage_t) spl_SplOjectStorage_free_storage, NULL TSRMLS_CC);
retval.handlers = &spl_handler_SplObjectStorage;
return retval;
}
/* }}} */
static HashTable* spl_object_storage_debug_info(zval *obj, int *is_temp TSRMLS_DC) /* {{{ */
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(obj TSRMLS_CC);
spl_SplObjectStorageElement *element;
HashTable *rv, *props;
HashPosition pos;
zval *tmp, *storage;
char md5str[33];
int name_len;
char *zname;
*is_temp = 1;
props = Z_OBJPROP_P(obj);
ALLOC_HASHTABLE(rv);
ZEND_INIT_SYMTABLE_EX(rv, zend_hash_num_elements(props) + 1, 0);
zend_hash_copy(rv, props, (copy_ctor_func_t) zval_add_ref, (void *) &tmp, sizeof(zval *));
MAKE_STD_ZVAL(storage);
array_init(storage);
zend_hash_internal_pointer_reset_ex(&intern->storage, &pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void **)&element, &pos) == SUCCESS) {
php_spl_object_hash(element->obj, md5str TSRMLS_CC);
Z_ADDREF_P(element->obj);
Z_ADDREF_P(element->inf);
MAKE_STD_ZVAL(tmp);
array_init(tmp);
add_assoc_zval_ex(tmp, "obj", sizeof("obj"), element->obj);
add_assoc_zval_ex(tmp, "inf", sizeof("inf"), element->inf);
add_assoc_zval_ex(storage, md5str, 33, tmp);
zend_hash_move_forward_ex(&intern->storage, &pos);
}
zname = spl_gen_private_prop_name(spl_ce_SplObjectStorage, "storage", sizeof("storage")-1, &name_len TSRMLS_CC);
zend_symtable_update(rv, zname, name_len+1, &storage, sizeof(zval *), NULL);
efree(zname);
return rv;
}
/* }}} */
/* {{{ spl_array_object_new */
static zend_object_value spl_SplObjectStorage_new(zend_class_entry *class_type TSRMLS_DC)
{
spl_SplObjectStorage *tmp;
return spl_object_storage_new_ex(class_type, &tmp, NULL TSRMLS_CC);
}
/* }}} */
int spl_object_storage_contains(spl_SplObjectStorage *intern, zval *obj TSRMLS_DC) /* {{{ */
{
#if HAVE_PACKED_OBJECT_VALUE
return zend_hash_exists(&intern->storage, (char*)&Z_OBJVAL_P(obj), sizeof(zend_object_value));
#else
{
zend_object_value zvalue;
memset(&zvalue, 0, sizeof(zend_object_value));
zvalue.handle = Z_OBJ_HANDLE_P(obj);
zvalue.handlers = Z_OBJ_HT_P(obj);
return zend_hash_exists(&intern->storage, (char*)&zvalue, sizeof(zend_object_value));
}
#endif
} /* }}} */
spl_SplObjectStorageElement* spl_object_storage_get(spl_SplObjectStorage *intern, zval *obj TSRMLS_DC) /* {{{ */
{
spl_SplObjectStorageElement *element;
zend_object_value *pzvalue;
#if HAVE_PACKED_OBJECT_VALUE
pzvalue = &Z_OBJVAL_P(obj);
#else
zend_object_value zvalue;
memset(&zvalue, 0, sizeof(zend_object_value));
zvalue.handle = Z_OBJ_HANDLE_P(obj);
zvalue.handlers = Z_OBJ_HT_P(obj);
pzvalue = &zvalue;
#endif
if (zend_hash_find(&intern->storage, (char*)pzvalue, sizeof(zend_object_value), (void**)&element) == SUCCESS) {
return element;
} else {
return NULL;
}
} /* }}} */
void spl_object_storage_attach(spl_SplObjectStorage *intern, zval *obj, zval *inf TSRMLS_DC) /* {{{ */
{
spl_SplObjectStorageElement *pelement, element;
pelement = spl_object_storage_get(intern, obj TSRMLS_CC);
if (inf) {
Z_ADDREF_P(inf);
} else {
ALLOC_INIT_ZVAL(inf);
}
if (pelement) {
zval_ptr_dtor(&pelement->inf);
pelement->inf = inf;
return;
}
Z_ADDREF_P(obj);
element.obj = obj;
element.inf = inf;
#if HAVE_PACKED_OBJECT_VALUE
zend_hash_update(&intern->storage, (char*)&Z_OBJVAL_P(obj), sizeof(zend_object_value), &element, sizeof(spl_SplObjectStorageElement), NULL);
#else
{
zend_object_value zvalue;
memset(&zvalue, 0, sizeof(zend_object_value));
zvalue.handle = Z_OBJ_HANDLE_P(obj);
zvalue.handlers = Z_OBJ_HT_P(obj);
zend_hash_update(&intern->storage, (char*)&zvalue, sizeof(zend_object_value), &element, sizeof(spl_SplObjectStorageElement), NULL);
}
#endif
} /* }}} */
void spl_object_storage_detach(spl_SplObjectStorage *intern, zval *obj TSRMLS_DC) /* {{{ */
{
#if HAVE_PACKED_OBJECT_VALUE
zend_hash_del(&intern->storage, (char*)&Z_OBJVAL_P(obj), sizeof(zend_object_value));
#else
{
zend_object_value zvalue;
memset(&zvalue, 0, sizeof(zend_object_value));
zvalue.handle = Z_OBJ_HANDLE_P(obj);
zvalue.handlers = Z_OBJ_HT_P(obj);
zend_hash_del(&intern->storage, (char*)&zvalue, sizeof(zend_object_value));
}
#endif
} /* }}}*/
/* {{{ proto void SplObjectStorage::attach($obj, $inf = NULL)
Attaches an object to the storage if not yet contained */
SPL_METHOD(SplObjectStorage, attach)
{
zval *obj, *inf = NULL;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o|z!", &obj, &inf) == FAILURE) {
return;
}
spl_object_storage_attach(intern, obj, inf TSRMLS_CC);
} /* }}} */
/* {{{ proto void SplObjectStorage::detach($obj)
Detaches an object from the storage */
SPL_METHOD(SplObjectStorage, detach)
{
zval *obj;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
return;
}
spl_object_storage_detach(intern, obj TSRMLS_CC);
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
intern->index = 0;
} /* }}} */
/* {{{ proto mixed SplObjectStorage::offsetGet($object)
Returns associated information for a stored object */
SPL_METHOD(SplObjectStorage, offsetGet)
{
zval *obj;
spl_SplObjectStorageElement *element;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
return;
}
element = spl_object_storage_get(intern, obj TSRMLS_CC);
if (!element) {
zend_throw_exception_ex(spl_ce_UnexpectedValueException, 0 TSRMLS_CC, "Object not found");
} else {
RETURN_ZVAL(element->inf,1, 0);
}
} /* }}} */
/* {{{ proto bool SplObjectStorage::contains($obj)
Determine whethe an object is contained in the storage */
SPL_METHOD(SplObjectStorage, contains)
{
zval *obj;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
return;
}
RETURN_BOOL(spl_object_storage_contains(intern, obj TSRMLS_CC));
} /* }}} */
/* {{{ proto int SplObjectStorage::count()
Determine number of objects in storage */
SPL_METHOD(SplObjectStorage, count)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
RETURN_LONG(zend_hash_num_elements(&intern->storage));
} /* }}} */
/* {{{ proto void SplObjectStorage::rewind()
Rewind to first position */
SPL_METHOD(SplObjectStorage, rewind)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
intern->index = 0;
} /* }}} */
/* {{{ proto bool SplObjectStorage::valid()
Returns whether current position is valid */
SPL_METHOD(SplObjectStorage, valid)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
RETURN_BOOL(zend_hash_has_more_elements_ex(&intern->storage, &intern->pos) == SUCCESS);
} /* }}} */
/* {{{ proto mixed SplObjectStorage::key()
Returns current key */
SPL_METHOD(SplObjectStorage, key)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
RETURN_LONG(intern->index);
} /* }}} */
/* {{{ proto mixed SplObjectStorage::current()
Returns current element */
SPL_METHOD(SplObjectStorage, current)
{
spl_SplObjectStorageElement *element;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == FAILURE) {
return;
}
RETVAL_ZVAL(element->obj, 1, 0);
} /* }}} */
/* {{{ proto mixed SplObjectStorage::getInfo()
Returns associated information to current element */
SPL_METHOD(SplObjectStorage, getInfo)
{
spl_SplObjectStorageElement *element;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == FAILURE) {
return;
}
RETVAL_ZVAL(element->inf, 1, 0);
} /* }}} */
/* {{{ proto mixed SplObjectStorage::setInfo(mixed $inf)
Sets associated information of current element to $inf */
SPL_METHOD(SplObjectStorage, setInfo)
{
spl_SplObjectStorageElement *element;
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
zval *inf;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &inf) == FAILURE) {
return;
}
if (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == FAILURE) {
return;
}
zval_ptr_dtor(&element->inf);
element->inf = inf;
Z_ADDREF_P(inf);
} /* }}} */
/* {{{ proto void SplObjectStorage::next()
Moves position forward */
SPL_METHOD(SplObjectStorage, next)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
intern->index++;
} /* }}} */
/* {{{ proto string SplObjectStorage::serialize()
Serializes storage */
SPL_METHOD(SplObjectStorage, serialize)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
spl_SplObjectStorageElement *element;
zval members, *pmembers;
HashPosition pos;
php_serialize_data_t var_hash;
smart_str buf = {0};
PHP_VAR_SERIALIZE_INIT(var_hash);
/* storage */
smart_str_appendl(&buf, "x:i:", 4);
smart_str_append_long(&buf, zend_hash_num_elements(&intern->storage));
smart_str_appendc(&buf, ';');
zend_hash_internal_pointer_reset_ex(&intern->storage, &pos);
while(zend_hash_has_more_elements_ex(&intern->storage, &pos) == SUCCESS) {
if (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &pos) == FAILURE) {
smart_str_free(&buf);
PHP_VAR_SERIALIZE_DESTROY(var_hash);
RETURN_NULL();
}
php_var_serialize(&buf, &element->obj, &var_hash TSRMLS_CC);
smart_str_appendc(&buf, ',');
php_var_serialize(&buf, &element->inf, &var_hash TSRMLS_CC);
smart_str_appendc(&buf, ';');
zend_hash_move_forward_ex(&intern->storage, &pos);
}
/* members */
smart_str_appendl(&buf, "m:", 2);
INIT_PZVAL(&members);
Z_ARRVAL(members) = intern->std.properties;
Z_TYPE(members) = IS_ARRAY;
pmembers = &members;
php_var_serialize(&buf, &pmembers, &var_hash TSRMLS_CC); /* finishes the string */
/* done */
PHP_VAR_SERIALIZE_DESTROY(var_hash);
if (buf.c) {
RETURN_STRINGL(buf.c, buf.len, 0);
} else {
RETURN_NULL();
}
} /* }}} */
/* {{{ proto void SplObjectStorage::unserialize(string serialized)
Unserializes storage */
SPL_METHOD(SplObjectStorage, unserialize)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
char *buf;
int buf_len;
const unsigned char *p, *s;
php_unserialize_data_t var_hash;
zval *pentry, *pmembers, *pcount = NULL, *pinf;
long count;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &buf, &buf_len) == FAILURE) {
return;
}
if (buf_len == 0) {
zend_throw_exception_ex(spl_ce_UnexpectedValueException, 0 TSRMLS_CC, "Empty serialized string cannot be empty");
return;
}
/* storage */
s = p = (const unsigned char*)buf;
PHP_VAR_UNSERIALIZE_INIT(var_hash);
if (*p!= 'x' || *++p != ':') {
goto outexcept;
}
++p;
ALLOC_INIT_ZVAL(pcount);
if (!php_var_unserialize(&pcount, &p, s + buf_len, &var_hash TSRMLS_CC) || Z_TYPE_P(pcount) != IS_LONG) {
zval_ptr_dtor(&pcount);
goto outexcept;
}
--p; /* for ';' */
count = Z_LVAL_P(pcount);
zval_ptr_dtor(&pcount);
while(count-- > 0) {
if (*p != ';') {
goto outexcept;
}
++p;
ALLOC_INIT_ZVAL(pentry);
if (!php_var_unserialize(&pentry, &p, s + buf_len, &var_hash TSRMLS_CC)) {
zval_ptr_dtor(&pentry);
goto outexcept;
}
ALLOC_INIT_ZVAL(pinf);
if (*p == ',') { /* new version has inf */
++p;
if (!php_var_unserialize(&pinf, &p, s + buf_len, &var_hash TSRMLS_CC)) {
zval_ptr_dtor(&pinf);
goto outexcept;
}
}
spl_object_storage_attach(intern, pentry, pinf TSRMLS_CC);
zval_ptr_dtor(&pentry);
zval_ptr_dtor(&pinf);
}
if (*p != ';') {
goto outexcept;
}
++p;
/* members */
if (*p!= 'm' || *++p != ':') {
goto outexcept;
}
++p;
ALLOC_INIT_ZVAL(pmembers);
if (!php_var_unserialize(&pmembers, &p, s + buf_len, &var_hash TSRMLS_CC)) {
zval_ptr_dtor(&pmembers);
goto outexcept;
}
/* copy members */
zend_hash_copy(intern->std.properties, Z_ARRVAL_P(pmembers), (copy_ctor_func_t) zval_add_ref, (void *) NULL, sizeof(zval *));
zval_ptr_dtor(&pmembers);
/* done reading $serialized */
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
return;
outexcept:
PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
zend_throw_exception_ex(spl_ce_UnexpectedValueException, 0 TSRMLS_CC, "Error at offset %ld of %d bytes", (long)((char*)p - buf), buf_len);
return;
} /* }}} */
ZEND_BEGIN_ARG_INFO(arginfo_Object, 0)
ZEND_ARG_INFO(0, object)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_attach, 0, 0, 1)
ZEND_ARG_INFO(0, object)
ZEND_ARG_INFO(0, inf)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO(arginfo_Serialized, 0)
ZEND_ARG_INFO(0, serialized)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO(arginfo_setInfo, 0)
ZEND_ARG_INFO(0, info)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_offsetGet, 0, 0, 1)
ZEND_ARG_INFO(0, object)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_offsetSet, 0, 0, 2)
ZEND_ARG_INFO(0, object)
ZEND_ARG_INFO(0, info)
ZEND_END_ARG_INFO()
static const zend_function_entry spl_funcs_SplObjectStorage[] = {
SPL_ME(SplObjectStorage, attach, arginfo_attach, 0)
SPL_ME(SplObjectStorage, detach, arginfo_Object, 0)
SPL_ME(SplObjectStorage, contains, arginfo_Object, 0)
SPL_ME(SplObjectStorage, getInfo, NULL, 0)
SPL_ME(SplObjectStorage, setInfo, arginfo_setInfo, 0)
/* Countable */
SPL_ME(SplObjectStorage, count, NULL, 0)
/* Iterator */
SPL_ME(SplObjectStorage, rewind, NULL, 0)
SPL_ME(SplObjectStorage, valid, NULL, 0)
SPL_ME(SplObjectStorage, key, NULL, 0)
SPL_ME(SplObjectStorage, current, NULL, 0)
SPL_ME(SplObjectStorage, next, NULL, 0)
/* Serializable */
SPL_ME(SplObjectStorage, unserialize, arginfo_Serialized, 0)
SPL_ME(SplObjectStorage, serialize, NULL, 0)
/* ArrayAccess */
SPL_MA(SplObjectStorage, offsetExists, SplObjectStorage, contains, arginfo_offsetGet, 0)
SPL_MA(SplObjectStorage, offsetSet, SplObjectStorage, attach, arginfo_offsetSet, 0)
SPL_MA(SplObjectStorage, offsetUnset, SplObjectStorage, detach, arginfo_offsetGet, 0)
SPL_ME(SplObjectStorage, offsetGet, arginfo_offsetGet, 0)
{NULL, NULL, NULL}
};
typedef enum {
MIT_NEED_ANY = 0,
MIT_NEED_ALL = 1,
MIT_KEYS_NUMERIC = 0,
MIT_KEYS_ASSOC = 2
} MultipleIteratorFlags;
#define SPL_MULTIPLE_ITERATOR_GET_ALL_CURRENT 1
#define SPL_MULTIPLE_ITERATOR_GET_ALL_KEY 2
/* {{{ proto void MultipleIterator::__construct([int flags = MIT_NEED_ALL|MIT_KEYS_NUMERIC])
Iterator that iterates over several iterators one after the other */
SPL_METHOD(MultipleIterator, __construct)
{
spl_SplObjectStorage *intern;
long flags = MIT_NEED_ALL|MIT_KEYS_NUMERIC;
zend_error_handling error_handling;
zend_replace_error_handling(EH_THROW, spl_ce_InvalidArgumentException, &error_handling TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &flags) == FAILURE) {
zend_restore_error_handling(&error_handling TSRMLS_CC);
return;
}
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
intern->flags = flags;
zend_restore_error_handling(&error_handling TSRMLS_CC);
}
/* }}} */
/* {{{ proto int MultipleIterator::getFlags()
Return current flags */
SPL_METHOD(MultipleIterator, getFlags)
{
spl_SplObjectStorage *intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
RETURN_LONG(intern->flags);
}
/* }}} */
/* {{{ proto int MultipleIterator::setFlags(int flags)
Set flags */
SPL_METHOD(MultipleIterator, setFlags)
{
spl_SplObjectStorage *intern;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &intern->flags) == FAILURE) {
return;
}
}
/* }}} */
/* {{{ proto void attachIterator(Iterator iterator[, mixed info]) throws InvalidArgumentException
Attach a new iterator */
SPL_METHOD(MultipleIterator, attachIterator)
{
spl_SplObjectStorage *intern;
zval *iterator = NULL, *info = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "O|z!", &iterator, zend_ce_iterator, &info) == FAILURE) {
return;
}
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (info != NULL) {
spl_SplObjectStorageElement *element;
zval compare_result;
if (Z_TYPE_P(info) != IS_LONG && Z_TYPE_P(info) != IS_STRING) {
zend_throw_exception(spl_ce_InvalidArgumentException, "Info must be NULL, integer or string", 0 TSRMLS_CC);
return;
}
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == SUCCESS) {
is_identical_function(&compare_result, info, element->inf TSRMLS_CC);
if (Z_LVAL(compare_result)) {
zend_throw_exception(spl_ce_InvalidArgumentException, "Key duplication error", 0 TSRMLS_CC);
return;
}
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
}
}
spl_object_storage_attach(intern, iterator, info TSRMLS_CC);
}
/* }}} */
/* {{{ proto void MultipleIterator::rewind()
Rewind all attached iterator instances */
SPL_METHOD(MultipleIterator, rewind)
{
spl_SplObjectStorage *intern;
spl_SplObjectStorageElement *element;
zval *it;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == SUCCESS && !EG(exception)) {
it = element->obj;
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_rewind, "rewind", NULL);
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
}
}
/* }}} */
/* {{{ proto void MultipleIterator::next()
Move all attached iterator instances forward */
SPL_METHOD(MultipleIterator, next)
{
spl_SplObjectStorage *intern;
spl_SplObjectStorageElement *element;
zval *it;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == SUCCESS && !EG(exception)) {
it = element->obj;
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_next, "next", NULL);
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
}
}
/* }}} */
/* {{{ proto bool MultipleIterator::valid()
Return whether all or one sub iterator is valid depending on flags */
SPL_METHOD(MultipleIterator, valid)
{
spl_SplObjectStorage *intern;
spl_SplObjectStorageElement *element;
zval *it, *retval = NULL;
long expect, valid;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
if (!zend_hash_num_elements(&intern->storage)) {
RETURN_FALSE;
}
expect = (intern->flags & MIT_NEED_ALL) ? 1 : 0;
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == SUCCESS && !EG(exception)) {
it = element->obj;
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_valid, "valid", &retval);
if (retval) {
valid = Z_LVAL_P(retval);
zval_ptr_dtor(&retval);
} else {
valid = 0;
}
if (expect != valid) {
RETURN_BOOL(!expect);
}
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
}
RETURN_BOOL(expect);
}
/* }}} */
static void spl_multiple_iterator_get_all(spl_SplObjectStorage *intern, int get_type, zval *return_value TSRMLS_DC) /* {{{ */
{
spl_SplObjectStorageElement *element;
zval *it, *retval = NULL;
int valid = 1, num_elements;
num_elements = zend_hash_num_elements(&intern->storage);
if (num_elements < 1) {
RETURN_FALSE;
}
array_init_size(return_value, num_elements);
zend_hash_internal_pointer_reset_ex(&intern->storage, &intern->pos);
while (zend_hash_get_current_data_ex(&intern->storage, (void**)&element, &intern->pos) == SUCCESS && !EG(exception)) {
it = element->obj;
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_valid, "valid", &retval);
if (retval) {
valid = Z_LVAL_P(retval);
zval_ptr_dtor(&retval);
} else {
valid = 0;
}
if (valid) {
if (SPL_MULTIPLE_ITERATOR_GET_ALL_CURRENT == get_type) {
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_current, "current", &retval);
} else {
zend_call_method_with_0_params(&it, Z_OBJCE_P(it), &Z_OBJCE_P(it)->iterator_funcs.zf_key, "key", &retval);
}
if (!retval) {
zend_throw_exception(spl_ce_RuntimeException, "Failed to call sub iterator method", 0 TSRMLS_CC);
return;
}
} else if (intern->flags & MIT_NEED_ALL) {
if (SPL_MULTIPLE_ITERATOR_GET_ALL_CURRENT == get_type) {
zend_throw_exception(spl_ce_RuntimeException, "Called current() with non valid sub iterator", 0 TSRMLS_CC);
} else {
zend_throw_exception(spl_ce_RuntimeException, "Called key() with non valid sub iterator", 0 TSRMLS_CC);
}
return;
} else {
ALLOC_INIT_ZVAL(retval);
}
if (intern->flags & MIT_KEYS_ASSOC) {
switch (Z_TYPE_P(element->inf)) {
case IS_LONG:
add_index_zval(return_value, Z_LVAL_P(element->inf), retval);
break;
case IS_STRING:
add_assoc_zval_ex(return_value, Z_STRVAL_P(element->inf), Z_STRLEN_P(element->inf)+1U, retval);
break;
default:
zval_ptr_dtor(&retval);
zend_throw_exception(spl_ce_InvalidArgumentException, "Sub-Iterator is associated with NULL", 0 TSRMLS_CC);
return;
}
} else {
add_next_index_zval(return_value, retval);
}
zend_hash_move_forward_ex(&intern->storage, &intern->pos);
}
}
/* }}} */
/* {{{ proto array current() throws RuntimeException throws InvalidArgumentException
Return an array of all registered Iterator instances current() result */
SPL_METHOD(MultipleIterator, current)
{
spl_SplObjectStorage *intern;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
spl_multiple_iterator_get_all(intern, SPL_MULTIPLE_ITERATOR_GET_ALL_CURRENT, return_value TSRMLS_CC);
}
/* }}} */
/* {{{ proto array MultipleIterator::key()
Return an array of all registered Iterator instances key() result */
SPL_METHOD(MultipleIterator, key)
{
spl_SplObjectStorage *intern;
intern = (spl_SplObjectStorage*)zend_object_store_get_object(getThis() TSRMLS_CC);
spl_multiple_iterator_get_all(intern, SPL_MULTIPLE_ITERATOR_GET_ALL_KEY, return_value TSRMLS_CC);
}
/* }}} */
ZEND_BEGIN_ARG_INFO_EX(arginfo_MultipleIterator_attachIterator, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, iterator, Iterator, 0)
ZEND_ARG_INFO(0, infos)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_MultipleIterator_detachIterator, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, iterator, Iterator, 0)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_MultipleIterator_containsIterator, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, iterator, Iterator, 0)
ZEND_END_ARG_INFO();
static const zend_function_entry spl_funcs_MultipleIterator[] = {
SPL_ME(MultipleIterator, __construct, NULL, 0)
SPL_ME(MultipleIterator, getFlags, NULL, 0)
SPL_ME(MultipleIterator, setFlags, NULL, 0)
SPL_ME(MultipleIterator, attachIterator, arginfo_MultipleIterator_attachIterator, 0)
SPL_MA(MultipleIterator, detachIterator, SplObjectStorage, detach, arginfo_MultipleIterator_detachIterator, 0)
SPL_MA(MultipleIterator, containsIterator, SplObjectStorage, contains, arginfo_MultipleIterator_containsIterator, 0)
SPL_MA(MultipleIterator, countIterators, SplObjectStorage, count, NULL, 0)
/* Iterator */
SPL_ME(MultipleIterator, rewind, NULL, 0)
SPL_ME(MultipleIterator, valid, NULL, 0)
SPL_ME(MultipleIterator, key, NULL, 0)
SPL_ME(MultipleIterator, current, NULL, 0)
SPL_ME(MultipleIterator, next, NULL, 0)
{NULL, NULL, NULL}
};
/* {{{ PHP_MINIT_FUNCTION(spl_observer) */
PHP_MINIT_FUNCTION(spl_observer)
{
REGISTER_SPL_INTERFACE(SplObserver);
REGISTER_SPL_INTERFACE(SplSubject);
REGISTER_SPL_STD_CLASS_EX(SplObjectStorage, spl_SplObjectStorage_new, spl_funcs_SplObjectStorage);
memcpy(&spl_handler_SplObjectStorage, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
spl_handler_SplObjectStorage.get_debug_info = spl_object_storage_debug_info;
REGISTER_SPL_IMPLEMENTS(SplObjectStorage, Countable);
REGISTER_SPL_IMPLEMENTS(SplObjectStorage, Iterator);
REGISTER_SPL_IMPLEMENTS(SplObjectStorage, Serializable);
REGISTER_SPL_IMPLEMENTS(SplObjectStorage, ArrayAccess);
REGISTER_SPL_STD_CLASS_EX(MultipleIterator, spl_SplObjectStorage_new, spl_funcs_MultipleIterator);
REGISTER_SPL_ITERATOR(MultipleIterator);
REGISTER_SPL_CLASS_CONST_LONG(MultipleIterator, "MIT_NEED_ANY", MIT_NEED_ANY);
REGISTER_SPL_CLASS_CONST_LONG(MultipleIterator, "MIT_NEED_ALL", MIT_NEED_ALL);
REGISTER_SPL_CLASS_CONST_LONG(MultipleIterator, "MIT_KEYS_NUMERIC", MIT_KEYS_NUMERIC);
REGISTER_SPL_CLASS_CONST_LONG(MultipleIterator, "MIT_KEYS_ASSOC", MIT_KEYS_ASSOC);
return SUCCESS;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: fdm=marker
* vim: noet sw=4 ts=4
*/
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