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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_eng_hist.c
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c_src/lsquic/src/liblsquic/lsquic_eng_hist.c 

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

#include <time.h>

#ifdef WIN32

#include <vc_compat.h>

#define localtime_r(a,b) localtime_s(b,a)

#endif



#include "lsquic_eng_hist.h"



#if ENG_HIST_ENABLED



#define LSQUIC_LOGGER_MODULE LSQLM_ENG_HIST

#include "lsquic_types.h"

#include "lsquic_logger.h"





static void

log_hist_slice (const struct hist_slice *slice, time_t t)

{

    size_t strftime(char *s, size_t max, const char *format,

                                  const struct tm *tm);

    if (slice->sl_packets_in == 0 &&

        slice->sl_packets_out == 0 &&

        slice->sl_del_mini_conns == 0 &&

        slice->sl_del_full_conns == 0)

        return;

    

    struct tm tm;

    char timestr[sizeof("12:00:00")];



    localtime_r(&t, &tm);

    strftime(timestr, sizeof(timestr), "%T", &tm);



    LSQ_DEBUG("%s: pi: %u; po: %u; +mc: %u; -mc: %u; +fc: %u; -fc: %u",

        timestr,

        slice->sl_packets_in,

        slice->sl_packets_out,

        slice->sl_new_mini_conns,

        slice->sl_del_mini_conns,

        slice->sl_new_full_conns,

        slice->sl_del_full_conns);

}





void

lsquic_eng_hist_log (const struct eng_hist *hist)

{

    unsigned i, idx;

    time_t t0 = time(NULL) - ENG_HIST_NELEMS + 1;

    for (i = 0; i < ENG_HIST_NELEMS; ++i)

    {

        idx = (hist->eh_prev_idx + i + 1) & (ENG_HIST_NELEMS - 1);

        if (i >= ENG_HIST_NELEMS - ENG_HIST_N_TO_PRINT)

            log_hist_slice(&hist->eh_slices[idx], t0 + i);

    }

}



#endif