2 * Copyright (c) 2009 Nicira Networks.
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"
31 static struct reconnect *reconnect;
34 static const struct command commands[];
36 static void diff_stats(const struct reconnect_stats *old,
37 const struct reconnect_stats *new);
42 struct reconnect_stats prev;
43 unsigned int old_max_tries;
48 reconnect = reconnect_create(now);
49 reconnect_set_name(reconnect, "remote");
50 reconnect_get_stats(reconnect, now, &prev);
51 printf("### t=%d ###\n", now);
53 old_max_tries = reconnect_get_max_tries(reconnect);
54 while (fgets(line, sizeof line, stdin)) {
55 struct reconnect_stats cur;
64 svec_parse_words(&args, line);
65 svec_terminate(&args);
66 if (!svec_is_empty(&args)) {
67 run_command(args.n, args.names, commands);
71 if (old_time != now) {
72 printf("\n### t=%d ###\n", now);
76 reconnect_get_stats(reconnect, now, &cur);
77 diff_stats(&prev, &cur);
79 if (reconnect_get_max_tries(reconnect) != old_max_tries) {
80 old_max_tries = reconnect_get_max_tries(reconnect);
81 printf(" %u tries left\n", old_max_tries);
89 do_enable(int argc UNUSED, char *argv[] UNUSED)
91 reconnect_enable(reconnect, now);
95 do_disable(int argc UNUSED, char *argv[] UNUSED)
97 reconnect_disable(reconnect, now);
101 do_force_reconnect(int argc UNUSED, char *argv[] UNUSED)
103 reconnect_force_reconnect(reconnect, now);
107 error_from_string(const char *s)
111 } else if (!strcmp(s, "ECONNREFUSED")) {
113 } else if (!strcmp(s, "EOF")) {
116 ovs_fatal(0, "unknown error '%s'", s);
121 do_disconnected(int argc UNUSED, char *argv[])
123 reconnect_disconnected(reconnect, now, error_from_string(argv[1]));
127 do_connecting(int argc UNUSED, char *argv[] UNUSED)
129 reconnect_connecting(reconnect, now);
133 do_connect_failed(int argc UNUSED, char *argv[])
135 reconnect_connect_failed(reconnect, now, error_from_string(argv[1]));
139 do_connected(int argc UNUSED, char *argv[] UNUSED)
141 reconnect_connected(reconnect, now);
145 do_received(int argc UNUSED, char *argv[] UNUSED)
147 reconnect_received(reconnect, now);
151 do_run(int argc, char *argv[])
153 enum reconnect_action action;
156 now += atoi(argv[1]);
159 action = reconnect_run(reconnect, now);
167 case RECONNECT_CONNECT:
168 printf(" should connect\n");
171 case RECONNECT_DISCONNECT:
172 printf(" should disconnect\n");
175 case RECONNECT_PROBE:
176 printf(" should send probe\n");
182 do_advance(int argc UNUSED, char *argv[])
184 now += atoi(argv[1]);
188 do_timeout(int argc UNUSED, char *argv[] UNUSED)
190 int timeout = reconnect_timeout(reconnect, now);
192 printf(" advance %d ms\n", timeout);
195 printf(" no timeout\n");
200 do_set_max_tries(int argc UNUSED, char *argv[])
202 reconnect_set_max_tries(reconnect, atoi(argv[1]));
206 diff_stats(const struct reconnect_stats *old,
207 const struct reconnect_stats *new)
209 if (old->state != new->state
210 || old->state_elapsed != new->state_elapsed
211 || old->backoff != new->backoff) {
212 printf(" in %s for %u ms (%d ms backoff)\n",
213 new->state, new->state_elapsed, new->backoff);
215 if (old->creation_time != new->creation_time
216 || old->last_received != new->last_received
217 || old->last_connected != new->last_connected) {
218 printf(" created %lld, last received %lld, last connected %lld\n",
219 new->creation_time, new->last_received, new->last_connected);
221 if (old->n_successful_connections != new->n_successful_connections
222 || old->n_attempted_connections != new->n_attempted_connections
223 || old->seqno != new->seqno) {
224 printf(" %u successful connections out of %u attempts, seqno %u\n",
225 new->n_successful_connections, new->n_attempted_connections,
228 if (old->is_connected != new->is_connected
229 || old->current_connection_duration != new->current_connection_duration
230 || old->total_connected_duration != new->total_connected_duration) {
231 printf(" %sconnected (%u ms), total %u ms connected\n",
232 new->is_connected ? "" : "not ",
233 new->current_connection_duration,
234 new->total_connected_duration);
238 static const struct command commands[] = {
239 { "enable", 0, 0, do_enable },
240 { "disable", 0, 0, do_disable },
241 { "force-reconnect", 0, 0, do_force_reconnect },
242 { "disconnected", 0, 1, do_disconnected },
243 { "connecting", 0, 0, do_connecting },
244 { "connect-failed", 0, 1, do_connect_failed },
245 { "connected", 0, 0, do_connected },
246 { "received", 0, 0, do_received },
247 { "run", 0, 1, do_run },
248 { "advance", 1, 1, do_advance },
249 { "timeout", 0, 0, do_timeout },
250 { "set-max-tries", 1, 1, do_set_max_tries },
251 { NULL, 0, 0, NULL },