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/*
**********************************************************************************************
* File: http_decoder_string.h
* Description:
* Authors: LuWenPeng <[email protected]>
* Date: 2022-10-31
* Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
***********************************************************************************************
*/
#ifndef _HTTP_DECODER_STRING_H_
#define _HTTP_DECODER_STRING_H_
#ifdef __cplusplus
extern "C"
{
#endif
#include "http_decoder.h"
enum string_state {
STRING_STATE_INIT,
STRING_STATE_REFER,
STRING_STATE_CACHE,
STRING_STATE_COMMIT,
};
/* state transition diagram
* +----------+
* | |
* \|/ |
* +------+ |
* | init | |
* +------+ |
* | |
* +---->| |
* | \|/ |
* | +-------+ |
* | | refer |--+ |
* | +-------+ | |
* | | | |
* | \|/ | |
* | +-------+ | |
* +--| cache | | |
* +-------+ | |
* | | |
* |<------+ |
* \|/ |
* +--------+ |
* | commit | |
* +--------+ |
* | |
* \|/ |
* +--------+ |
* | reset |----+
* +--------+
*/
//http decoder string
struct http_decoder_string {
struct hstring refer; // shallow copy
struct hstring cache; // deep copy
struct hstring commit;
enum string_state state;
};
void http_decoder_string_refer(struct http_decoder_string *rstr,
const char *at, size_t length);
void http_decoder_string_cache(struct http_decoder_string *rstr);
void http_decoder_string_commit(struct http_decoder_string *rstr);
void http_decoder_string_reset(struct http_decoder_string *rstr);
enum string_state http_decoder_string_state(struct http_decoder_string *rstr);
int http_decoder_string_get(struct http_decoder_string *rstr, struct hstring *out);
void http_decoder_string_dump(struct http_decoder_string *rstr, const char *desc);
#ifdef __cplusplus
}
#endif
#endif
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