mod_status.c

Apache官方在今天放出产品系列2.2的最新版本2.2.11的源码包 最流行的HTTP服务器软件之一

                else
                    req_time = (long)
                        ((ws_record->stop_time -
                          ws_record->start_time) / 1000);
                if (req_time < 0L)
                    req_time = 0L;

                lres = ws_record->access_count;
                my_lres = ws_record->my_access_count;
                conn_lres = ws_record->conn_count;
                bytes = ws_record->bytes_served;
                my_bytes = ws_record->my_bytes_served;
                conn_bytes = ws_record->conn_bytes;
                if (ws_record->pid) { /* MPM sets per-worker pid and generation */
                    worker_pid = ws_record->pid;
                    worker_generation = ws_record->generation;
                }
                else {
                    worker_pid = ps_record->pid;
                    worker_generation = ps_record->generation;
                }

                if (no_table_report) {
                    if (ws_record->status == SERVER_DEAD)
                        ap_rprintf(r,
                                   "<b>Server %d-%d</b> (-): %d|%lu|%lu [",
                                   i, (int)worker_generation,
                                   (int)conn_lres, my_lres, lres);
                    else
                        ap_rprintf(r,
                                   "<b>Server %d-%d</b> (%"
                                   APR_PID_T_FMT "): %d|%lu|%lu [",
                                   i, (int) worker_generation,
                                   worker_pid,
                                   (int)conn_lres, my_lres, lres);

                    switch (ws_record->status) {
                    case SERVER_READY:
                        ap_rputs("Ready", r);
                        break;
                    case SERVER_STARTING:
                        ap_rputs("Starting", r);
                        break;
                    case SERVER_BUSY_READ:
                        ap_rputs("<b>Read</b>", r);
                        break;
                    case SERVER_BUSY_WRITE:
                        ap_rputs("<b>Write</b>", r);
                        break;
                    case SERVER_BUSY_KEEPALIVE:
                        ap_rputs("<b>Keepalive</b>", r);
                        break;
                    case SERVER_BUSY_LOG:
                        ap_rputs("<b>Logging</b>", r);
                        break;
                    case SERVER_BUSY_DNS:
                        ap_rputs("<b>DNS lookup</b>", r);
                        break;
                    case SERVER_CLOSING:
                        ap_rputs("<b>Closing</b>", r);
                        break;
                    case SERVER_DEAD:
                        ap_rputs("Dead", r);
                        break;
                    case SERVER_GRACEFUL:
                        ap_rputs("Graceful", r);
                        break;
                    case SERVER_IDLE_KILL:
                        ap_rputs("Dying", r);
                        break;
                    default:
                        ap_rputs("?STATE?", r);
                        break;
                    }

                    ap_rprintf(r, "] "
#ifdef HAVE_TIMES
                               "u%g s%g cu%g cs%g"
#endif
                               "\n %ld %ld (",
#ifdef HAVE_TIMES
                               ws_record->times.tms_utime / tick,
                               ws_record->times.tms_stime / tick,
                               ws_record->times.tms_cutime / tick,
                               ws_record->times.tms_cstime / tick,
#endif
                               (long)apr_time_sec(nowtime -
                                                  ws_record->last_used),
                               (long) req_time);

                    format_byte_out(r, conn_bytes);
                    ap_rputs("|", r);
                    format_byte_out(r, my_bytes);
                    ap_rputs("|", r);
                    format_byte_out(r, bytes);
                    ap_rputs(")\n", r);
                    ap_rprintf(r,
                               " <i>%s {%s}</i> <b>[%s]</b><br />\n\n",
                               ap_escape_html(r->pool,
                                              ws_record->client),
                               ap_escape_html(r->pool,
                                              ap_escape_logitem(r->pool,
                                                                ws_record->request)),
                               ap_escape_html(r->pool,
                                              ws_record->vhost));
                }
                else { /* !no_table_report */
                    if (ws_record->status == SERVER_DEAD)
                        ap_rprintf(r,
                                   "<tr><td><b>%d-%d</b></td><td>-</td><td>%d/%lu/%lu",
                                   i, (int)worker_generation,
                                   (int)conn_lres, my_lres, lres);
                    else
                        ap_rprintf(r,
                                   "<tr><td><b>%d-%d</b></td><td>%"
                                   APR_PID_T_FMT
                                   "</td><td>%d/%lu/%lu",
                                   i, (int)worker_generation,
                                   worker_pid,
                                   (int)conn_lres,
                                   my_lres, lres);

                    switch (ws_record->status) {
                    case SERVER_READY:
                        ap_rputs("</td><td>_", r);
                        break;
                    case SERVER_STARTING:
                        ap_rputs("</td><td><b>S</b>", r);
                        break;
                    case SERVER_BUSY_READ:
                        ap_rputs("</td><td><b>R</b>", r);
                        break;
                    case SERVER_BUSY_WRITE:
                        ap_rputs("</td><td><b>W</b>", r);
                        break;
                    case SERVER_BUSY_KEEPALIVE:
                        ap_rputs("</td><td><b>K</b>", r);
                        break;
                    case SERVER_BUSY_LOG:
                        ap_rputs("</td><td><b>L</b>", r);
                        break;
                    case SERVER_BUSY_DNS:
                        ap_rputs("</td><td><b>D</b>", r);
                        break;
                    case SERVER_CLOSING:
                        ap_rputs("</td><td><b>C</b>", r);
                        break;
                    case SERVER_DEAD:
                        ap_rputs("</td><td>.", r);
                        break;
                    case SERVER_GRACEFUL:
                        ap_rputs("</td><td>G", r);
                        break;
                    case SERVER_IDLE_KILL:
                        ap_rputs("</td><td>I", r);
                        break;
                    default:
                        ap_rputs("</td><td>?", r);
                        break;
                    }

                    ap_rprintf(r,
                               "\n</td>"
#ifdef HAVE_TIMES
                               "<td>%.2f</td>"
#endif
                               "<td>%ld</td><td>%ld",
#ifdef HAVE_TIMES
                               (ws_record->times.tms_utime +
                                ws_record->times.tms_stime +
                                ws_record->times.tms_cutime +
                                ws_record->times.tms_cstime) / tick,
#endif
                               (long)apr_time_sec(nowtime -
                                                  ws_record->last_used),
                               (long)req_time);

                    ap_rprintf(r, "</td><td>%-1.1f</td><td>%-2.2f</td><td>%-2.2f\n",
                               (float)conn_bytes / KBYTE, (float) my_bytes / MBYTE,
                               (float)bytes / MBYTE);

                    if (ws_record->status == SERVER_BUSY_READ)
                        ap_rprintf(r,
                                   "</td><td>?</td><td nowrap>?</td><td nowrap>..reading.. </td></tr>\n\n");
                    else
                        ap_rprintf(r,
                                   "</td><td>%s</td><td nowrap>%s</td><td nowrap>%s</td></tr>\n\n",
                                   ap_escape_html(r->pool,
                                                  ws_record->client),
                                   ap_escape_html(r->pool,
                                                  ws_record->vhost),
                                   ap_escape_html(r->pool,
                                                  ap_escape_logitem(r->pool, 
                                                                    ws_record->request)));
                } /* no_table_report */
            } /* for (j...) */
        } /* for (i...) */

        if (!no_table_report) {
            ap_rputs("</table>\n \
<hr /> \
<table>\n \
<tr><th>Srv</th><td>Child Server number - generation</td></tr>\n \
<tr><th>PID</th><td>OS process ID</td></tr>\n \
<tr><th>Acc</th><td>Number of accesses this connection / this child / this slot</td></tr>\n \
<tr><th>M</th><td>Mode of operation</td></tr>\n"

#ifdef HAVE_TIMES
"<tr><th>CPU</th><td>CPU usage, number of seconds</td></tr>\n"
#endif

"<tr><th>SS</th><td>Seconds since beginning of most recent request</td></tr>\n \
<tr><th>Req</th><td>Milliseconds required to process most recent request</td></tr>\n \
<tr><th>Conn</th><td>Kilobytes transferred this connection</td></tr>\n \
<tr><th>Child</th><td>Megabytes transferred this child</td></tr>\n \
<tr><th>Slot</th><td>Total megabytes transferred this slot</td></tr>\n \
</table>\n", r);
        }
    } /* if (ap_extended_status && !short_report) */
    else {

        if (!short_report) {
            ap_rputs("<hr />To obtain a full report with current status "
                     "information you need to use the "
                     "<code>ExtendedStatus On</code> directive.\n", r);
        }
    }

    {
        /* Run extension hooks to insert extra content. */
        int flags =
            (short_report ? AP_STATUS_SHORT : 0) |
            (no_table_report ? AP_STATUS_NOTABLE : 0) |
            (ap_extended_status ? AP_STATUS_EXTENDED : 0);

        ap_run_status_hook(r, flags);
    }

    if (!short_report) {
        ap_rputs(ap_psignature("<hr />\n",r), r);
        ap_rputs("</body></html>\n", r);
    }

    return 0;
}


static int status_init(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp,
                       server_rec *s)
{
    status_flags[SERVER_DEAD] = '.';  /* We don't want to assume these are in */
    status_flags[SERVER_READY] = '_'; /* any particular order in scoreboard.h */
    status_flags[SERVER_STARTING] = 'S';
    status_flags[SERVER_BUSY_READ] = 'R';
    status_flags[SERVER_BUSY_WRITE] = 'W';
    status_flags[SERVER_BUSY_KEEPALIVE] = 'K';
    status_flags[SERVER_BUSY_LOG] = 'L';
    status_flags[SERVER_BUSY_DNS] = 'D';
    status_flags[SERVER_CLOSING] = 'C';
    status_flags[SERVER_GRACEFUL] = 'G';
    status_flags[SERVER_IDLE_KILL] = 'I';
    ap_mpm_query(AP_MPMQ_HARD_LIMIT_THREADS, &thread_limit);
    ap_mpm_query(AP_MPMQ_HARD_LIMIT_DAEMONS, &server_limit);
    return OK;
}

#ifdef HAVE_TIMES
static void status_child_init(apr_pool_t *p, server_rec *s)
{
    child_pid = getpid();
}
#endif

static void register_hooks(apr_pool_t *p)
{
    ap_hook_handler(status_handler, NULL, NULL, APR_HOOK_MIDDLE);
    ap_hook_post_config(status_init, NULL, NULL, APR_HOOK_MIDDLE);
#ifdef HAVE_TIMES
    ap_hook_child_init(status_child_init, NULL, NULL, APR_HOOK_MIDDLE);
#endif
}

module AP_MODULE_DECLARE_DATA status_module =
{
    STANDARD20_MODULE_STUFF,
    NULL,                       /* dir config creater */
    NULL,                       /* dir merger --- default is to override */
    NULL,                       /* server config */
    NULL,                       /* merge server config */
    status_module_cmds,         /* command table */
    register_hooks              /* register_hooks */
};