Add allocate/free callbacks to ArrayBuffers (#4801)

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

1 files changed, 25 insertions, 0 deletions

diff --git a/jerry-core/include/jerryscript-types.h b/jerry-core/include/jerryscript-types.h
index 87228711..c17876b4 100644
--- a/jerry-core/include/jerryscript-types.h
+++ b/jerry-core/include/jerryscript-types.h
@@ -819,6 +819,31 @@ typedef struct
 } jerry_source_info_t;
 
 /**
+ * Array buffer types.
+ */
+
+/**
+ * Type of an array buffer.
+ */
+typedef enum
+{
+  JERRY_ARRAYBUFFER_TYPE_ARRAYBUFFER, /**< the object is an array buffer object */
+  JERRY_ARRAYBUFFER_TYPE_SHARED_ARRAYBUFFER, /**< the object is a shared array buffer object */
+} jerry_arraybuffer_type_t;
+
+/**
+ * Callback for allocating the backing store of array buffer or shared array buffer objects.
+ */
+typedef uint8_t *(*jerry_arraybuffer_allocate_t) (jerry_arraybuffer_type_t buffer_type, uint32_t buffer_size,
+                                                  void **arraybuffer_user_p, void *user_p);
+
+/**
+ * Callback for freeing the backing store of array buffer or shared array buffer objects.
+ */
+typedef void (*jerry_arraybuffer_free_t) (jerry_arraybuffer_type_t buffer_type, uint8_t *buffer_p,
+                                          uint32_t buffer_size, void *arraybuffer_user_p, void *user_p);
+
+/**
  * @}
  */