50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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/*
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* Copyright 2005, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
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* All rights reserved. Distributed under the terms of the MIT License.
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*/
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#ifndef _BOOT_NET_CHAIN_BUFFER_H
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#define _BOOT_NET_CHAIN_BUFFER_H
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#include <SupportDefs.h>
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class ChainBuffer {
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public:
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ChainBuffer(void *data = 0, uint32 size = 0, ChainBuffer *next = NULL,
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bool freeData = false);
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~ChainBuffer();
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void *Data() const { return fData; }
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uint32 Size() const { return fSize; }
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uint32 TotalSize() const { return fTotalSize; }
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ChainBuffer *Next() const { return fNext; }
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ChainBuffer *DetachNext();
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void Append(ChainBuffer *next);
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void Flatten(void *_buffer) const;
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private:
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// TODO: Implement Create() and Delete(). Make new and delete operators private.
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enum {
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CHAIN_BUFFER_HEAD = 0x1,
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CHAIN_BUFFER_EMBEDDED_DATA = 0x2,
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CHAIN_BUFFER_FREE_DATA = 0x4,
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CHAIN_BUFFER_ON_STACK = 0x8,
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};
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void _Init(void *data, uint32 size, ChainBuffer *next, uint32 flags);
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void _Destroy();
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uint32 fFlags:4;
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uint32 fSize:14;
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uint32 fTotalSize:14;
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void *fData;
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ChainBuffer *fNext;
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uint8 fBuffer[0];
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};
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#endif // _BOOT_NET_CHAIN_BUFFER_H
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