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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support

Security advisory: This version has known vulnerabilities. View advisories
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hackney c_src lsquic src liblsquic lsquic_conn_public.h
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c_src/lsquic/src/liblsquic/lsquic_conn_public.h 

/* Copyright (c) 2017 - 2022 LiteSpeed Technologies Inc.  See LICENSE. */

/*

 * lsquic_conn_public.h -- Connection's "public interface"

 *

 * This structure is used to bundle things in connection that stream

 * needs access to into a single object.  This way, the space per

 * stream object is one pointer instead of four or five.

 */



#ifndef LSQUIC_CONN_PUBLIC_H

#define LSQUIC_CONN_PUBLIC_H 1



struct lsquic_conn;

struct lsquic_engine_public;

struct lsquic_mm;

struct lsquic_hash;

struct headers_stream;

struct lsquic_send_ctl;

#if LSQUIC_CONN_STATS

struct conn_stats;

#endif

struct qpack_enc_hdl;

struct qpack_dec_hdl;

struct network_path;



struct lsquic_conn_public {

    struct lsquic_streams_tailq     sending_streams,    /* Send RST_STREAM, BLOCKED, and WUF frames */

                                    read_streams,

                                    write_streams,      /* Send STREAM frames */

                                    service_streams;

    struct lsquic_hash             *all_streams;

    struct lsquic_cfcw              cfcw;

    struct lsquic_conn_cap          conn_cap;

    struct lsquic_rtt_stats         rtt_stats;

    struct lsquic_engine_public    *enpub;

    struct malo                    *packet_out_malo;

    struct lsquic_conn             *lconn;

    struct lsquic_mm               *mm;

    union {

        struct {

            struct headers_stream  *hs;

        }                       gquic;

        struct {

            struct qpack_enc_hdl *qeh;

            struct qpack_dec_hdl *qdh;

            struct hcso_writer   *hcso;

            struct lsquic_hash   *promises;

        }                       ietf;

    }                               u;

    enum {

        CP_STREAM_UNBLOCKED     = 1 << 0,   /* Set when a stream becomes unblocked */

    }                               cp_flags;

    struct lsquic_send_ctl         *send_ctl;

#if LSQUIC_CONN_STATS

    struct conn_stats              *conn_stats;

#endif

    const struct network_path      *path;

#if LSQUIC_EXTRA_CHECKS

    unsigned long                   stream_frame_bytes;

    unsigned                        wtp_level;  /* wtp: Write To Packets */

#endif

    /* "unsigned" is wide enough: these values are only used for amplification

     * limit before initial path is validated.

     */

    unsigned                        bytes_in;   /* successfully processed */

    unsigned                        bytes_out;

    /* Used for no-progress timeout */

    lsquic_time_t                   last_tick, last_prog;

    unsigned                        max_peer_ack_usec;

    uint8_t                         n_special_streams;

};



#endif