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Add allocate/free callbacks to ArrayBuffers (#4801)

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Larger buffer allocations will throw error instead of calling jerry_fatal.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2021-10-28 13:51:34 +02:00
committed by GitHub
parent d2388e907f
commit a024eb2118
19 changed files with 1365 additions and 716 deletions
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jerry-core/ecma/operations/ecma-arraybuffer-object.h
+22 -5
View File
@@ -27,6 +27,19 @@
* @{
*/
/**
* Get array buffer flags.
*/
#define ECMA_ARRAYBUFFER_GET_FLAGS(arraybuffer_p) \
(((ecma_extended_object_t *) (arraybuffer_p))->u.cls.u1.array_buffer_flags)
/**
* Check whether the backing store is allocated for an array buffer.
*/
#define ECMA_ARRAYBUFFER_CHECK_BUFFER_ERROR(arraybuffer_p) \
(JERRY_UNLIKELY (!(ECMA_ARRAYBUFFER_GET_FLAGS (arraybuffer_p) & ECMA_ARRAYBUFFER_ALLOCATED)) \
&& ecma_arraybuffer_allocate_buffer (arraybuffer_p) == ECMA_VALUE_ERROR)
ecma_value_t
ecma_op_create_arraybuffer_object (const ecma_value_t *, uint32_t);
@@ -34,12 +47,16 @@ ecma_op_create_arraybuffer_object (const ecma_value_t *, uint32_t);
* Helper functions for arraybuffer.
*/
ecma_object_t *
ecma_arraybuffer_new_object (uint32_t lengh);
ecma_arraybuffer_create_object (uint8_t type, uint32_t length);
ecma_object_t *
ecma_arraybuffer_new_object_external (uint32_t length,
void *buffer_p,
jerry_value_free_callback_t free_cb);
lit_utf8_byte_t * JERRY_ATTR_PURE
ecma_arraybuffer_create_object_with_buffer (uint8_t type, uint32_t length);
ecma_object_t *
ecma_arraybuffer_new_object (uint32_t length);
ecma_value_t
ecma_arraybuffer_allocate_buffer (ecma_object_t *object_p);
void
ecma_arraybuffer_release_buffer (ecma_object_t *object_p);
uint8_t * JERRY_ATTR_PURE
ecma_arraybuffer_get_buffer (ecma_object_t *obj_p);
uint32_t JERRY_ATTR_PURE
ecma_arraybuffer_get_length (ecma_object_t *obj_p);