Function

JSObjectMakeArrayBufferWithBytesNoCopy

Creates a JavaScript Array Buffer object from an existing pointer.

Declaration

JSObjectRef JSObjectMakeArrayBufferWithBytesNoCopy(JSContextRef ctx, void *bytes, size_t byteLength, JSTypedArrayBytesDeallocator bytesDeallocator, void *deallocatorContext, JSValueRef *exception);

Parameters

ctx

The execution context to use.

bytes

A pointer to the byte buffer to be used as the backing store of the Typed Array object.

byteLength

The number of bytes pointed to by the parameter bytes.

bytesDeallocator

The allocator to use to deallocate the external buffer when the Typed Array data object is deallocated.

deallocatorContext

A pointer to pass back to the deallocator.

exception

A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.

Discussion

If an exception is thrown during this function the bytesDeallocator will always be called.