/*

   +----------------------------------------------------------------------+

   | Copyright (c) The PHP Group                                          |

   +----------------------------------------------------------------------+

   | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt.                                |

   | If you did not receive a copy of the Zend license and are unable to  |

   | obtain it through the world-wide-web, please send a note to          |

   | license@zend.com so we can mail you a copy immediately.              |

   +----------------------------------------------------------------------+

   | Authors: krakjoe@php.net                                             |

   +----------------------------------------------------------------------+

*/

#ifndef ZEND_WEAKREFS_H

#define ZEND_WEAKREFS_H

#include "zend_alloc.h"

BEGIN_EXTERN_C()

extern ZEND_API zend_class_entry *zend_ce_weakref;

void zend_register_weakref_ce(void);

void zend_weakrefs_init(void);

void zend_weakrefs_shutdown(void);

ZEND_API void zend_weakrefs_notify(zend_object *object);

ZEND_API zval *zend_weakrefs_hash_add(HashTable *ht, zend_object *key, zval *pData);

ZEND_API zend_result zend_weakrefs_hash_del(HashTable *ht, zend_object *key);

static zend_always_inline void *zend_weakrefs_hash_add_ptr(HashTable *ht, zend_object *key, void *ptr) {

  zval tmp, *zv;

  ZVAL_PTR(&tmp, ptr);

  if ((zv = zend_weakrefs_hash_add(ht, key, &tmp))) {

    return Z_PTR_P(zv);

  } else {

    return NULL;

  }

}

Unexecuted instantiation: zend_default_classes.c:zend_weakrefs_hash_add_ptr

Unexecuted instantiation: zend_execute_API.c:zend_weakrefs_hash_add_ptr

Unexecuted instantiation: zend_gc.c:zend_weakrefs_hash_add_ptr

Unexecuted instantiation: zend_objects.c:zend_weakrefs_hash_add_ptr

Unexecuted instantiation: zend_weakrefs.c:zend_weakrefs_hash_add_ptr

ZEND_API void zend_weakrefs_hash_clean(HashTable *ht);

static zend_always_inline void zend_weakrefs_hash_destroy(HashTable *ht) {

  zend_weakrefs_hash_clean(ht);

  ZEND_ASSERT(zend_hash_num_elements(ht) == 0);

  zend_hash_destroy(ht);

}

Unexecuted instantiation: zend_default_classes.c:zend_weakrefs_hash_destroy

Unexecuted instantiation: zend_execute_API.c:zend_weakrefs_hash_destroy

Unexecuted instantiation: zend_gc.c:zend_weakrefs_hash_destroy

Unexecuted instantiation: zend_objects.c:zend_weakrefs_hash_destroy

Unexecuted instantiation: zend_weakrefs.c:zend_weakrefs_hash_destroy

/* Because php uses the raw numbers as a hash function, raw pointers will lead to hash collisions.

 * We have a guarantee that the lowest ZEND_MM_ALIGNED_OFFSET_LOG2 bits of a pointer are zero.

 *

 * E.g. On most 64-bit platforms, pointers are aligned to 8 bytes, so the least significant 3 bits are always 0 and can be discarded.

 *

 * NOTE: This function is only used for EG(weakrefs) and zend_weakmap->ht.

 * It is not used for the HashTable instances associated with ZEND_WEAKREF_TAG_HT tags (created in zend_weakref_register, which uses ZEND_WEAKREF_ENCODE instead).

 * The ZEND_WEAKREF_TAG_HT instances are used to disambiguate between multiple weak references to the same zend_object.

 */

static zend_always_inline zend_ulong zend_object_to_weakref_key(const zend_object *object)

{

  ZEND_ASSERT(((uintptr_t)object) % ZEND_MM_ALIGNMENT == 0);

  return ((uintptr_t) object) >> ZEND_MM_ALIGNMENT_LOG2;

}

Unexecuted instantiation: zend_default_classes.c:zend_object_to_weakref_key

Unexecuted instantiation: zend_execute_API.c:zend_object_to_weakref_key

Unexecuted instantiation: zend_gc.c:zend_object_to_weakref_key

Unexecuted instantiation: zend_objects.c:zend_object_to_weakref_key

zend_weakrefs.c:zend_object_to_weakref_key

Line

Count

Source

61

6.60k

{

62

6.60k

  ZEND_ASSERT(((uintptr_t)object) % ZEND_MM_ALIGNMENT == 0);

63

6.60k

  return ((uintptr_t) object) >> ZEND_MM_ALIGNMENT_LOG2;

64

6.60k

}

static zend_always_inline zend_object *zend_weakref_key_to_object(zend_ulong key)

{

  return (zend_object *) (((uintptr_t) key) << ZEND_MM_ALIGNMENT_LOG2);

}

Unexecuted instantiation: zend_default_classes.c:zend_weakref_key_to_object

Unexecuted instantiation: zend_execute_API.c:zend_weakref_key_to_object

Unexecuted instantiation: zend_gc.c:zend_weakref_key_to_object

Unexecuted instantiation: zend_objects.c:zend_weakref_key_to_object

zend_weakrefs.c:zend_weakref_key_to_object

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Count

Source

67

1.23k

{

68

1.23k

  return (zend_object *) (((uintptr_t) key) << ZEND_MM_ALIGNMENT_LOG2);

69

1.23k

}

HashTable *zend_weakmap_get_gc(zend_object *object, zval **table, int *n);

HashTable *zend_weakmap_get_key_entry_gc(zend_object *object, zval **table, int *n);

HashTable *zend_weakmap_get_entry_gc(zend_object *object, zval **table, int *n);

HashTable *zend_weakmap_get_object_key_entry_gc(zend_object *object, zval **table, int *n);

HashTable *zend_weakmap_get_object_entry_gc(zend_object *object, zval **table, int *n);

END_EXTERN_C()

#endif