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126 lines
3.6 KiB
126 lines
3.6 KiB
/*
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* $Id$
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*
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* Copyright (C) 2010 iptelorg GmbH
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/** tcp statistics.
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* @file tcp_stats.c
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* @ingroup: core
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*/
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/*
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* History:
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* --------
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* 2010-08-08 initial version (andrei)
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*/
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#ifdef USE_TCP
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#include "tcp_stats.h"
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#ifdef USE_TCP_STATS
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#include "counters.h"
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#include "tcp_info.h"
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struct tcp_counters_h tcp_cnts_h;
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enum tcp_info_req { TCP_INFO_NONE, TCP_INFO_CONN_NO, TCP_INFO_WR_QUEUE_SZ };
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static counter_val_t tcp_info(counter_handle_t h, void* what);
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/* tcp counters definitions */
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counter_def_t tcp_cnt_defs[] = {
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{&tcp_cnts_h.established, "established", 0, 0, 0,
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"incremented each time a tcp connection is established."},
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{&tcp_cnts_h.passive_open, "passive_open", 0, 0, 0,
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"total number of accepted connections (so far)."},
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{&tcp_cnts_h.connect_success, "connect_success", 0, 0, 0,
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"total number of successfully active opened connections"
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" (successful connect()s)."},
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{&tcp_cnts_h.connect_failed, "connect_failed", 0, 0, 0,
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"number of failed active connection attempts."},
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{&tcp_cnts_h.local_reject, "local_reject", 0, 0, 0,
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"number of rejected incoming connections."},
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{&tcp_cnts_h.con_timeout, "con_timeout", 0, 0, 0,
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"total number of connections that did timeout (idle for too long)."},
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{&tcp_cnts_h.con_reset, "con_reset", 0, 0, 0,
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"total number of TCP_RSTs received on established connections."},
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{&tcp_cnts_h.send_timeout, "send_timeout", 0, 0, 0,
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"number of send attempts that failed due to a timeout"
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"(note: works only in tcp async mode)."},
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{&tcp_cnts_h.sendq_full, "sendq_full", 0, 0, 0,
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"number of send attempts that failed because of exceeded buffering"
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"capacity (send queue full, works only in tcp async mode)."},
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{0, "current_opened_connections", 0,
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tcp_info, (void*)(long)TCP_INFO_CONN_NO,
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"number of currently opened connections."},
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{0, "current_write_queue_size", 0,
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tcp_info, (void*)(long)TCP_INFO_WR_QUEUE_SZ,
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"current sum of all the connections write queue sizes."},
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{0, 0, 0, 0, 0, 0 }
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};
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/** helper function for some stats (which are kept internally inside tcp).
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*/
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static counter_val_t tcp_info(counter_handle_t h, void* what)
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{
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enum tcp_info_req w;
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struct tcp_gen_info ti;
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if (tcp_disable)
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return 0;
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w = (int)(long)what;
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tcp_get_info(&ti);
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switch(w) {
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case TCP_INFO_CONN_NO:
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return ti.tcp_connections_no;
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case TCP_INFO_WR_QUEUE_SZ:
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return ti.tcp_write_queued;
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case TCP_INFO_NONE:
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break;
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};
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return 0;
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}
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/** intialize tcp statistics.
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* Must be called before forking.
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* @return < 0 on errror, 0 on success.
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*/
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int tcp_stats_init()
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{
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#define TCP_REG_COUNTER(name) \
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if (counter_register(&tcp_cnts_h.name, "tcp", # name, 0, 0, 0, 0) < 0) \
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goto error;
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if (counter_register_array("tcp", tcp_cnt_defs) < 0)
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goto error;
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return 0;
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error:
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return -1;
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}
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void tcp_stats_destroy()
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{
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/* do nothing */
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}
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#endif /* USE_TCP_STATS */
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#endif /* USE_TCP */
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/* vi: set ts=4 sw=4 tw=79:ai:cindent: */
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