Files
sdk/runtime/bin/io_buffer.h
T
asiva@google.com c2cafbbe33 - Change the layout of external typed array objects to avoid the extra indirection when accessing elements in the array.
- Change the Dart API which create these external arrays to account for this change
Review URL: https://codereview.chromium.org//12093071

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17937 260f80e4-7a28-3924-810f-c04153c831b5
2013-01-31 18:53:21 +00:00

41 lines
1.1 KiB
C++

// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef BIN_IO_BUFFER_H_
#define BIN_IO_BUFFER_H_
#include "platform/globals.h"
#include "include/dart_api.h"
class IOBuffer {
public:
// Allocate an IO buffer dart object (of type Uint8List) backed by
// an external byte array.
static Dart_Handle Allocate(intptr_t size, uint8_t **buffer);
// Allocate IO buffer storage.
static uint8_t* Allocate(intptr_t size);
// Function for disposing of IO buffer storage. All backing storage
// for IO buffers must be freed using this function.
static void Free(void* buffer) {
delete[] reinterpret_cast<uint8_t*>(buffer);
}
// Function for finalizing external byte arrays used as IO buffers.
static void Finalizer(Dart_Handle handle, void* buffer) {
Free(buffer);
if (handle != NULL) {
Dart_DeletePersistentHandle(handle);
}
}
private:
DISALLOW_ALLOCATION();
DISALLOW_IMPLICIT_CONSTRUCTORS(IOBuffer);
};
#endif // BIN_IO_BUFFER_H_