2 * Copyright (c) 2009, 2010, 2011 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "reconnect.h"
26 #include "command-line.h"
32 static struct reconnect *reconnect;
35 static const struct command commands[];
37 static void diff_stats(const struct reconnect_stats *old,
38 const struct reconnect_stats *new,
44 extern struct vlog_module VLM_reconnect;
45 struct reconnect_stats prev;
46 unsigned int old_max_tries;
50 vlog_set_levels(&VLM_reconnect, VLF_ANY_FACILITY, VLL_OFF);
53 reconnect = reconnect_create(now);
54 reconnect_set_name(reconnect, "remote");
55 reconnect_get_stats(reconnect, now, &prev);
56 printf("### t=%d ###\n", now);
58 old_max_tries = reconnect_get_max_tries(reconnect);
59 while (fgets(line, sizeof line, stdin)) {
60 struct reconnect_stats cur;
69 svec_parse_words(&args, line);
70 svec_terminate(&args);
71 if (!svec_is_empty(&args)) {
72 run_command(args.n, args.names, commands);
76 if (old_time != now) {
77 printf("\n### t=%d ###\n", now);
80 reconnect_get_stats(reconnect, now, &cur);
81 diff_stats(&prev, &cur, now - old_time);
83 if (reconnect_get_max_tries(reconnect) != old_max_tries) {
84 old_max_tries = reconnect_get_max_tries(reconnect);
85 printf(" %u tries left\n", old_max_tries);
95 do_enable(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
97 reconnect_enable(reconnect, now);
101 do_disable(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
103 reconnect_disable(reconnect, now);
107 do_force_reconnect(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
109 reconnect_force_reconnect(reconnect, now);
113 error_from_string(const char *s)
117 } else if (!strcmp(s, "ECONNREFUSED")) {
119 } else if (!strcmp(s, "EOF")) {
122 ovs_fatal(0, "unknown error '%s'", s);
127 do_disconnected(int argc OVS_UNUSED, char *argv[])
129 reconnect_disconnected(reconnect, now, error_from_string(argv[1]));
133 do_connecting(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
135 reconnect_connecting(reconnect, now);
139 do_connect_failed(int argc OVS_UNUSED, char *argv[])
141 reconnect_connect_failed(reconnect, now, error_from_string(argv[1]));
145 do_connected(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
147 reconnect_connected(reconnect, now);
151 do_received(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
153 reconnect_received(reconnect, now);
157 do_run(int argc, char *argv[])
159 enum reconnect_action action;
162 now += atoi(argv[1]);
165 action = reconnect_run(reconnect, now);
173 case RECONNECT_CONNECT:
174 printf(" should connect\n");
177 case RECONNECT_DISCONNECT:
178 printf(" should disconnect\n");
181 case RECONNECT_PROBE:
182 printf(" should send probe\n");
188 do_advance(int argc OVS_UNUSED, char *argv[])
190 now += atoi(argv[1]);
194 do_timeout(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
196 int timeout = reconnect_timeout(reconnect, now);
198 printf(" advance %d ms\n", timeout);
201 printf(" no timeout\n");
206 do_set_max_tries(int argc OVS_UNUSED, char *argv[])
208 reconnect_set_max_tries(reconnect, atoi(argv[1]));
212 diff_stats(const struct reconnect_stats *old,
213 const struct reconnect_stats *new,
216 if (old->state != new->state
217 || old->state_elapsed != new->state_elapsed
218 || old->backoff != new->backoff) {
219 printf(" in %s for %u ms (%d ms backoff)\n",
220 new->state, new->state_elapsed, new->backoff);
222 if (old->creation_time != new->creation_time
223 || old->last_received != new->last_received
224 || old->last_connected != new->last_connected) {
225 printf(" created %lld, last received %lld, last connected %lld\n",
226 new->creation_time, new->last_received, new->last_connected);
228 if (old->n_successful_connections != new->n_successful_connections
229 || old->n_attempted_connections != new->n_attempted_connections
230 || old->seqno != new->seqno) {
231 printf(" %u successful connections out of %u attempts, seqno %u\n",
232 new->n_successful_connections, new->n_attempted_connections,
235 if (old->is_connected != new->is_connected) {
236 printf(" %sconnected\n", new->is_connected ? "" : "dis");
238 if (old->last_connected != new->last_connected
239 || (old->msec_since_connect != new->msec_since_connect - delta
240 && !(old->msec_since_connect == UINT_MAX
241 && new->msec_since_connect == UINT_MAX))
242 || (old->total_connected_duration != new->total_connected_duration - delta
243 && !(old->total_connected_duration == 0
244 && new->total_connected_duration == 0))) {
245 printf(" last connected %u ms ago, connected %u ms total\n",
246 new->msec_since_connect, new->total_connected_duration);
248 if (old->last_disconnected != new->last_disconnected
249 || (old->msec_since_disconnect != new->msec_since_disconnect - delta
250 && !(old->msec_since_disconnect == UINT_MAX
251 && new->msec_since_disconnect == UINT_MAX))) {
252 printf(" disconnected at %llu ms (%u ms ago)\n",
253 new->last_disconnected, new->msec_since_disconnect);
258 do_set_passive(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
260 reconnect_set_passive(reconnect, true, now);
264 do_listening(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
266 reconnect_listening(reconnect, now);
270 do_listen_error(int argc OVS_UNUSED, char *argv[])
272 reconnect_listen_error(reconnect, now, atoi(argv[1]));
275 static const struct command commands[] = {
276 { "enable", 0, 0, do_enable },
277 { "disable", 0, 0, do_disable },
278 { "force-reconnect", 0, 0, do_force_reconnect },
279 { "disconnected", 0, 1, do_disconnected },
280 { "connecting", 0, 0, do_connecting },
281 { "connect-failed", 0, 1, do_connect_failed },
282 { "connected", 0, 0, do_connected },
283 { "received", 0, 0, do_received },
284 { "run", 0, 1, do_run },
285 { "advance", 1, 1, do_advance },
286 { "timeout", 0, 0, do_timeout },
287 { "set-max-tries", 1, 1, do_set_max_tries },
288 { "passive", 0, 0, do_set_passive },
289 { "listening", 0, 0, do_listening },
290 { "listen-error", 1, 1, do_listen_error },
291 { NULL, 0, 0, NULL },