// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_
#define MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_
#include <stddef.h>
namespace mojo {
// Buffer provides a way to allocate memory. Allocations are 8-byte aligned and
// zero-initialized. Allocations remain valid for the lifetime of the Buffer.
class Buffer {
public:
typedef void (*Destructor)(void* address);
Buffer();
virtual ~Buffer();
// A destructor may optionally be assigned to the allocation. Destructors run
// (in LIFO order) when the Buffer instance is destroyed.
virtual void* Allocate(size_t num_bytes, Destructor func = NULL) = 0;
// Returns the current Buffer from thread local storage. May be NULL.
static Buffer* current();
private:
Buffer* previous_;
};
} // namespace mojo
#endif // MOJO_PUBLIC_CPP_BINDINGS_BUFFER_H_