Value.newArrayBuffer
javascriptcore.value.Value newArrayBuffer(javascriptcore.context.Context context, void * data, size_t size, glib.types.DestroyNotify destroyNotify = null)Creates a new ArrayBuffer from existing data in memory.
The data is not copied: while this allows sharing data with JavaScript efficiently, the caller must ensure that the memory region remains valid until the newly created object is released by JSC.
Optionally, a destroy_notify callback can be provided, which will be invoked with user_data as parameter when the ArrayBuffer object is released. This is intended to be used for freeing resources related to the memory region which contains the data:
``!<-- language="C" -->
GMappedFile *f = g_mapped_file_new (file_path, TRUE, NULL);
JSCValue *value = jsc_value_new_array_buffer (context,
g_mapped_file_get_contents (f), g_mapped_file_get_length (f),
(GDestroyNotify) g_mapped_file_unref, f);
CODEBLOCK0!<-- language="C" -->
void *bytes = g_malloc0 (100);
JSCValue *value = jsc_value_new_array_buffer (context, bytes, 100, g_free, bytes);
``
Parameters
context | A #JSCContext |
data | Pointer to a region of memory. |
size | Size in bytes of the memory region. |
destroyNotify | destroy notifier for user_data. |