Constructor
JavaScriptCoreValuenew_array_buffer
Declaration [src]
JSCValue*
jsc_value_new_array_buffer (
  JSCContext* context,
  gpointer data,
  gsize size,
  GDestroyNotify destroy_notify,
  gpointer user_data
)
Description [src]
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); ]|
Note that the user_data can be the same value as data:
|[!<— language=”C” —> void bytes = g_malloc0 (100); JSCValue value = jsc_value_new_array_buffer (context, bytes, 100, g_free, bytes); ]|
| Available since: | 2.38 | 
Parameters
| context | JSCContext | 
| A  | |
| The data is owned by the caller of the function. | |
| data | gpointer | 
| Pointer to a region of memory. | |
| The argument can be NULL. | |
| The data is owned by the caller of the function. | |
| size | gsize | 
| Size in bytes of the memory region. | |
| destroy_notify | GDestroyNotify | 
| Destroy notifier for  | |
| The argument can be NULL. | |
| user_data | gpointer | 
| User data. | |
| The argument can be NULL. | |
| The data is owned by the caller of the function. | 
Return value
| Returns: | JSCValue | 
| A  | |
| The caller of the function takes ownership of the data, and is responsible for freeing it. | |
| The return value can be NULL. |