YourWishes/jerryscript
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add allocate/free callbacks to ArrayBuffers (#4801)

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/ecma/operations/ecma-shared-arraybuffer-object.c
+12 -56
View File
@@ -13,17 +13,17 @@
* limitations under the License.
*/
#include "ecma-shared-arraybuffer-object.h"
#include "ecma-typedarray-object.h"
#include "ecma-objects.h"
#include "ecma-arraybuffer-object.h"
#include "ecma-builtins.h"
#include "ecma-exceptions.h"
#include "ecma-function-object.h"
#include "ecma-gc.h"
#include "ecma-globals.h"
#include "ecma-helpers.h"
#include "jmem.h"
#include "ecma-objects.h"
#include "ecma-shared-arraybuffer-object.h"
#include "ecma-typedarray-object.h"
#include "jcontext.h"
#include "ecma-function-object.h"
/** \addtogroup ecma ECMA
* @{
@@ -35,65 +35,21 @@
#if JERRY_BUILTIN_SHAREDARRAYBUFFER
/**
* Helper function: create SharedArrayBuffer object based on the array length
* Creating SharedArrayBuffer objects based on the array length
*
* The struct of arraybuffer object:
* ecma_object_t
* extend_part
* data buffer
*
* @return ecma_object_t *
* @return new SharedArrayBuffer object
*/
ecma_object_t *
ecma_shared_arraybuffer_new_object (uint32_t length) /**< length of the SharedArrayBuffer */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_SHARED_ARRAYBUFFER_PROTOTYPE);
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t) + length,
ECMA_OBJECT_TYPE_CLASS);
if (length > 0)
{
return ecma_arraybuffer_create_object_with_buffer (ECMA_OBJECT_CLASS_SHARED_ARRAY_BUFFER, length);
}
ecma_extended_object_t *ext_object_p = (ecma_extended_object_t *) object_p;
ext_object_p->u.cls.type = ECMA_OBJECT_CLASS_SHARED_ARRAY_BUFFER;
ext_object_p->u.cls.u1.array_buffer_flags = ECMA_ARRAYBUFFER_INTERNAL_MEMORY;
ext_object_p->u.cls.u3.length = length;
lit_utf8_byte_t *buf = (lit_utf8_byte_t *) (ext_object_p + 1);
memset (buf, 0, length);
return object_p;
return ecma_arraybuffer_create_object (ECMA_OBJECT_CLASS_SHARED_ARRAY_BUFFER, length);
} /* ecma_shared_arraybuffer_new_object */
/**
* Helper function: create SharedArrayBuffer object with external buffer backing.
*
* The struct of external arraybuffer object:
* ecma_object_t
* extend_part
* SharedArrayBuffer external info part
*
* @return ecma_object_t *, pointer to the created SharedArrayBuffer object
*/
ecma_object_t *
ecma_shared_arraybuffer_new_object_external (uint32_t length, /**< length of the buffer_p to use */
void *buffer_p, /**< pointer for SharedArrayBuffer's buffer backing */
jerry_value_free_callback_t free_cb) /**< buffer free callback */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_SHARED_ARRAYBUFFER_PROTOTYPE);
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_arraybuffer_external_info),
ECMA_OBJECT_TYPE_CLASS);
ecma_arraybuffer_external_info *array_object_p = (ecma_arraybuffer_external_info *) object_p;
array_object_p->extended_object.u.cls.type = ECMA_OBJECT_CLASS_SHARED_ARRAY_BUFFER;
array_object_p->extended_object.u.cls.u1.array_buffer_flags = ECMA_ARRAYBUFFER_EXTERNAL_MEMORY;
array_object_p->extended_object.u.cls.u3.length = length;
array_object_p->buffer_p = buffer_p;
array_object_p->free_cb = free_cb;
return object_p;
} /* ecma_shared_arraybuffer_new_object_external */
/**
* SharedArrayBuffer object creation operation.
*