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150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
#include "zend.h"
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#include "zend_globals.h"
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#include "zend_variables.h"
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#define ZEND_DEBUG_OBJECTS 0
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static zend_object_handlers zoh = {
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zend_objects_get_address,
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NULL,
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zend_objects_add_ref,
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zend_objects_del_ref,
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zend_objects_delete_obj,
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zend_objects_clone_obj
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};
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void zend_objects_init(zend_objects *objects, zend_uint init_size)
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{
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objects->object_buckets = (zend_object_bucket *) emalloc(init_size * sizeof(zend_object_bucket));
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objects->top = 1; /* Skip 0 so that handles are true */
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objects->size = init_size;
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objects->free_list_head = -1;
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}
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void zend_objects_destroy(zend_objects *objects)
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{
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efree(objects->object_buckets);
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}
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zend_object_value zend_objects_new(zend_object **object, zend_class_entry *class_type)
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{
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zend_object_handle handle;
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zend_object_value retval;
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TSRMLS_FETCH();
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if (EG(objects).free_list_head != -1) {
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handle = EG(objects).free_list_head;
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EG(objects).free_list_head = EG(objects).object_buckets[handle].bucket.free_list.next;
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} else {
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if (EG(objects).top == EG(objects).size) {
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EG(objects).size <<= 1;
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EG(objects).object_buckets = (zend_object_bucket *) erealloc(EG(objects).object_buckets, EG(objects).size * sizeof(zend_object_bucket));
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}
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handle = EG(objects).top++;
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}
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EG(objects).object_buckets[handle].valid = 1;
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EG(objects).object_buckets[handle].bucket.obj.refcount = 1;
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*object = &EG(objects).object_buckets[handle].bucket.obj.object;
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(*object)->ce = class_type;
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retval.handle = handle;
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retval.handlers = &zoh;
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#if ZEND_DEBUG_OBJECTS
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fprintf(stderr, "Allocated object id #%d\n", handle);
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#endif
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return retval;
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}
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zend_object *zend_objects_get_address(zend_object_handle handle)
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{
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TSRMLS_FETCH();
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if (!EG(objects).object_buckets[handle].valid) {
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zend_error(E_ERROR, "Trying to access invalid object");
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}
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return &EG(objects).object_buckets[handle].bucket.obj.object;
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}
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void zend_objects_add_ref(zend_object_handle handle)
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{
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TSRMLS_FETCH();
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if (!EG(objects).object_buckets[handle].valid) {
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zend_error(E_ERROR, "Trying to add reference to invalid object");
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}
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EG(objects).object_buckets[handle].bucket.obj.refcount++;
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#if ZEND_DEBUG_OBJECTS
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fprintf(stderr, "Increased refcount of object id #%d\n", handle);
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#endif
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}
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void zend_objects_delete_obj(zend_object_handle handle)
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{
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zend_object *object;
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TSRMLS_FETCH();
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if (!EG(objects).object_buckets[handle].valid) {
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zend_error(E_ERROR, "Trying to delete invalid object");
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}
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object = &EG(objects).object_buckets[handle].bucket.obj.object;
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zend_hash_destroy(object->properties);
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efree(object->properties);
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EG(objects).object_buckets[handle].valid = 0;
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#if ZEND_DEBUG_OBJECTS
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fprintf(stderr, "Deleted object id #%d\n", handle);
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#endif
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}
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void zend_objects_del_ref(zend_object_handle handle)
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{
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TSRMLS_FETCH();
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if (--EG(objects).object_buckets[handle].bucket.obj.refcount == 0) {
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zend_object *object;
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if (EG(objects).object_buckets[handle].valid) {
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object = &EG(objects).object_buckets[handle].bucket.obj.object;
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zend_hash_destroy(object->properties);
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efree(object->properties);
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}
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EG(objects).object_buckets[handle].bucket.free_list.next = EG(objects).free_list_head;
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EG(objects).free_list_head = handle;
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EG(objects).object_buckets[handle].valid = 0;
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#if ZEND_DEBUG_OBJECTS
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fprintf(stderr, "Deallocated object id #%d\n", handle);
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#endif
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}
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#if ZEND_DEBUG_OBJECTS
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else {
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fprintf(stderr, "Decreased refcount of object id #%d\n", handle);
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}
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#endif
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}
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zend_object_value zend_objects_clone_obj(zend_object_handle handle)
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{
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zend_object_value retval;
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zend_object *old_object;
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zend_object *new_object;
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TSRMLS_FETCH();
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if (!EG(objects).object_buckets[handle].valid) {
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zend_error(E_ERROR, "Trying to clone invalid object");
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}
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old_object = &EG(objects).object_buckets[handle].bucket.obj.object;
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retval = zend_objects_new(&new_object, old_object->ce);
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ALLOC_HASHTABLE(new_object->properties);
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zend_hash_init(new_object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
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zend_hash_copy(new_object->properties, old_object->properties, (copy_ctor_func_t) zval_add_ref, (void *) NULL /* Not used anymore */, sizeof(zval *));
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return retval;
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}
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