зеркало из https://github.com/mozilla/gecko-dev.git
51 строка
1.2 KiB
C++
51 строка
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
// Original author: ekr@rtfm.com
|
|
|
|
#ifndef databuffer_h__
|
|
#define databuffer_h__
|
|
#include <algorithm>
|
|
#include <mozilla/UniquePtr.h>
|
|
#include <m_cpp_utils.h>
|
|
#include <nsISupportsImpl.h>
|
|
|
|
namespace mozilla {
|
|
|
|
class DataBuffer {
|
|
public:
|
|
DataBuffer() : data_(nullptr), len_(0) {}
|
|
DataBuffer(const uint8_t *data, size_t len) {
|
|
Assign(data, len);
|
|
}
|
|
|
|
void Assign(const uint8_t *data, size_t len) {
|
|
Allocate(len);
|
|
memcpy(static_cast<void *>(data_.get()),
|
|
static_cast<const void *>(data), len);
|
|
}
|
|
|
|
void Allocate(size_t len) {
|
|
data_.reset(new uint8_t[len ? len : 1]); // Don't depend on new [0].
|
|
len_ = len;
|
|
}
|
|
|
|
const uint8_t *data() const { return data_.get(); }
|
|
uint8_t *data() { return data_.get(); }
|
|
size_t len() const { return len_; }
|
|
const bool empty() const { return len_ != 0; }
|
|
|
|
private:
|
|
UniquePtr<uint8_t[]> data_;
|
|
size_t len_;
|
|
|
|
DISALLOW_COPY_ASSIGN(DataBuffer);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|