htcp.h

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/*
 * Copyright (C) 1996-2025 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_SRC_HTCP_H
#define SQUID_SRC_HTCP_H
 
#if USE_HTCP
 
#include "enums.h"
#include "http/forward.h"
#include "HttpHeader.h"
#include "ip/forward.h"
#include "store_key_md5.h"
 
class HtcpReplyData
{
 
public:
    HtcpReplyData();
 
    bool parseHeader(const char *buffer, const size_t size);
 
    int hit;
    HttpHeader hdr;
    uint32_t msg_id;
    double version;
 
    struct cto_t {
        /* cache-to-origin */
        double rtt;
        int samp;
        int hops;
    } cto;
};
 
void neighborsHtcpReply(const cache_key *, HtcpReplyData *, const Ip::Address &);
 
class CachePeer;
 
int htcpQuery(StoreEntry * e, HttpRequest * req, CachePeer * p);
 
void htcpClear(StoreEntry * e, HttpRequest * req, const HttpRequestMethod &method, CachePeer * p, htcp_clr_reason reason);
 
#endif /* USE_HTCP */
#endif /* SQUID_SRC_HTCP_H */