[thirdparty/squid.git] / src / StoreMetaUnpacker.h

/*
 * Copyright (C) 1996-2014 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */

#ifndef SQUID_TYPELENGTHVALUEUNPACKER_H
#define SQUID_TYPELENGTHVALUEUNPACKER_H

class StoreMeta;
class StoreEntry;

class StoreMetaUnpacker
{

public:
    StoreMetaUnpacker (const char *buf, ssize_t bufferLength, int *hdrlen);
    StoreMeta *createStoreMeta();
    bool isBufferZero(); ///< all-zeros buffer, implies !isBufferSane
    bool isBufferSane();

private:
    static int const MinimumBufferLength;

    void getBufferLength();
    void getType();
    void getLength();
    void getTLV();
    bool doOneEntry();
    bool moreToProcess() const;

    char const * const buf;
    ssize_t buflen;
    int *hdr_len;
    int position;
    char type;
    int length;
    StoreMeta **tail;
};

/*
 * store_swapmeta.c
 */
char *storeSwapMetaPack(StoreMeta * tlv_list, int *length);
StoreMeta *storeSwapMetaBuild(StoreEntry * e);
StoreMeta *storeSwapMetaUnpack(const char *buf, int *hdrlen);
void storeSwapTLVFree(StoreMeta * n);
StoreMeta ** storeSwapTLVAdd(int type, const void *ptr, size_t len, StoreMeta ** tail);

#endif /* SQUID_TYPELENGTHVALUEUNPACKER_H */
Commit	Line	Data
528b2c61	1	/*
bbc27441	2	* Copyright (C) 1996-2014 The Squid Software Foundation and contributors
528b2c61	3	*
bbc27441 AJ	4	* Squid software is distributed under GPLv2+ license and includes
	5	* contributions from numerous individuals and organizations.
	6	* Please see the COPYING and CONTRIBUTORS files for details.
528b2c61	7	*/
bbc27441	8
528b2c61	9	#ifndef SQUID_TYPELENGTHVALUEUNPACKER_H
	10	#define SQUID_TYPELENGTHVALUEUNPACKER_H
	11
	12	class StoreMeta;
e1f7507e AJ	13	class StoreEntry;
e1f7507e AJ	14
62e76326	15	class StoreMetaUnpacker
	16	{
	17
528b2c61	18	public:
	19	StoreMetaUnpacker (const char buf, ssize_t bufferLength, int hdrlen);
	20	StoreMeta *createStoreMeta();
e2851fe7	21	bool isBufferZero(); ///< all-zeros buffer, implies !isBufferSane
528b2c61	22	bool isBufferSane();
62e76326	23
528b2c61	24	private:
57d55dfa	25	static int const MinimumBufferLength;
62e76326	26
528b2c61	27	void getBufferLength();
	28	void getType();
	29	void getLength();
	30	void getTLV();
	31	bool doOneEntry();
	32	bool moreToProcess() const;
	33
	34	char const * const buf;
	35	ssize_t buflen;
	36	int *hdr_len;
57d55dfa	37	int position;
528b2c61	38	char type;
	39	int length;
	40	StoreMeta **tail;
	41	};
	42
	43	/*
	44	* store_swapmeta.c
	45	*/
d9c252f2 FC	46	char storeSwapMetaPack(StoreMeta tlv_list, int *length);
	47	StoreMeta storeSwapMetaBuild(StoreEntry e);
	48	StoreMeta storeSwapMetaUnpack(const char buf, int *hdrlen);
	49	void storeSwapTLVFree(StoreMeta * n);
528b2c61	50	StoreMeta ** storeSwapTLVAdd(int type, const void ptr, size_t len, StoreMeta * tail);
	51
	52	#endif /* SQUID_TYPELENGTHVALUEUNPACKER_H */