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// Copyright (c) 2009 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 NET_BASE_IO_BUFFER_H_
#define NET_BASE_IO_BUFFER_H_
#include "base/ref_counted.h"
namespace net {
// This is a simple wrapper around a buffer that provides ref counting for
// easier asynchronous IO handling.
class IOBuffer : public base::RefCountedThreadSafe<IOBuffer> {
public:
IOBuffer() : data_(NULL) {}
explicit IOBuffer(int buffer_size);
explicit IOBuffer(char* data) : data_(data) {}
virtual ~IOBuffer() {
delete[] data_;
}
char* data() { return data_; }
protected:
char* data_;
};
// This class allows the creation of a temporary IOBuffer that doesn't really
// own the underlying buffer. Please use this class only as a last resort.
// A good example is the buffer for a synchronous operation, where we can be
// sure that nobody is keeping an extra reference to this object so the lifetime
// of the buffer can be completely managed by its intended owner.
class WrappedIOBuffer : public net::IOBuffer {
public:
explicit WrappedIOBuffer(const char* data)
: net::IOBuffer(const_cast<char*>(data)) {}
~WrappedIOBuffer() {
data_ = NULL;
}
};
} // namespace net
#endif // NET_BASE_IO_BUFFER_H_
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