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authorChristian Pointner <equinox@helsinki.at>2014-03-21 00:52:03 (GMT)
committerChristian Pointner <equinox@helsinki.at>2014-03-21 00:52:03 (GMT)
commit9112bdaafb2f5af0c9a426ede0278853f32c7dde (patch)
tree8251e9b866783f847e943798aac10a0d9e252b03
parenta0fa5e580e1b51e89061dde649a4e5d81f74d0d9 (diff)
added listeners for heartbeat
-rw-r--r--client_list.c1
-rw-r--r--client_list.h1
-rw-r--r--switchctl.c69
3 files changed, 54 insertions, 17 deletions
diff --git a/client_list.c b/client_list.c
index 928c354..0e4bb34 100644
--- a/client_list.c
+++ b/client_list.c
@@ -68,6 +68,7 @@ int client_add(client_t** first, int fd)
new_client->oc_listener = 0;
new_client->relay_listener = 0;
new_client->silence_listener = 0;
+ new_client->heartbeat_listener = 0;
new_client->next = NULL;
new_client->buffer.offset = 0;
diff --git a/client_list.h b/client_list.h
index cb69f39..0a71f65 100644
--- a/client_list.h
+++ b/client_list.h
@@ -38,6 +38,7 @@ struct client_struct {
int oc_listener;
int relay_listener;
int silence_listener;
+ int heartbeat_listener;
struct client_struct* next;
read_buffer_t buffer;
};
diff --git a/switchctl.c b/switchctl.c
index 65f439c..0e1b4ea 100644
--- a/switchctl.c
+++ b/switchctl.c
@@ -218,23 +218,26 @@ int process_cmd_request(const char* cmd, cmd_id_t cmd_id, const char* param, int
return ret;
if(cmd_id == STATUS) {
- char buf[2][30];
+ char buf[5][30];
snprintf(buf[0], 30, "Current Mode: %s", state_.mode_ == MODE_MASTER ? "Master" : "Standby");
send_response(fd, buf[0]);
snprintf(buf[1], 30, "Master Channel: %s", state_.channel_master_ == CHAN_MAIN ? "Main" : "Music");
send_response(fd, buf[1]);
- snprintf(buf[1], 30, "Standby Channel: %s", state_.channel_standby_ == CHAN_MAIN ? "Main" : "Music");
- send_response(fd, buf[1]);
- snprintf(buf[1], 30, "Master Heartbeat: %s", state_.hb_state_master_ ? "present" : "timeout");
- send_response(fd, buf[1]);
- snprintf(buf[1], 30, "Standby Heartbeat: %s", state_.hb_state_standby_ ? "present" : "timeout");
- send_response(fd, buf[1]);
+ snprintf(buf[2], 30, "Standby Channel: %s", state_.channel_standby_ == CHAN_MAIN ? "Main" : "Music");
+ send_response(fd, buf[2]);
+ snprintf(buf[3], 30, "Master Heartbeat: %s", state_.hb_state_master_ ? "present" : "timeout");
+ send_response(fd, buf[3]);
+ snprintf(buf[4], 30, "Standby Heartbeat: %s", state_.hb_state_standby_ ? "present" : "timeout");
+ send_response(fd, buf[4]);
client_t* client;
int listener_cnt = 0;
for(client = client_lst; client; client = client->next)
if(client->status_listener && client->fd != fd) {
send_response(client->fd, buf[0]);
send_response(client->fd, buf[1]);
+ send_response(client->fd, buf[2]);
+ send_response(client->fd, buf[3]);
+ send_response(client->fd, buf[4]);
listener_cnt++;
}
log_printf(DEBUG, "sent status to %d additional listeners", listener_cnt);
@@ -492,9 +495,30 @@ int process_cmd_heartbeat(const char* param, int fd, cmd_t **cmd_q, client_t* cl
if(param) {
client_t* client = client_find(client_lst, fd);
if(client) {
+ char* message = NULL;
switch(client->type) {
- case HB_MASTER: state_.hb_state_master_ = (param[0] == '1') ? TRUE : FALSE; break;
- case HB_STANDBY: state_.hb_state_standby_ = (param[0] == '1') ? TRUE : FALSE; break;
+ case HB_MASTER: {
+ bool old_state = state_.hb_state_master_;
+ state_.hb_state_master_ = (param[0] == '1') ? TRUE : FALSE;
+ if(old_state != state_.hb_state_master_) {
+ if(state_.hb_state_master_)
+ message = "Master: heartbeat is back!";
+ else
+ message = "Master: heartbeat timed out!";
+ }
+ break;
+ }
+ case HB_STANDBY: {
+ bool old_state = state_.hb_state_standby_;
+ state_.hb_state_standby_ = (param[0] == '1') ? TRUE : FALSE;
+ if(old_state != state_.hb_state_standby_) {
+ if(state_.hb_state_standby_)
+ message = "Standby: heartbeat is back!";
+ else
+ message = "Standby: heartbeat timed out!";
+ }
+ break;
+ }
default: {
log_printf(ERROR, "unable to update heartbeat status: wrong client type");
send_response(fd, "EEE: heartbeat: wrong client type");
@@ -507,22 +531,29 @@ int process_cmd_heartbeat(const char* param, int fd, cmd_t **cmd_q, client_t* cl
if(state_.hb_state_standby_) {
state_.mode_ = MODE_STANDBY;
return change_mode(old_mode, fd, cmd_q, opt, client_lst);
- } else {
- log_printf(ERROR, "both heartbeats are offline!!!!!!");
- //TODO: sent this to emergency listeners
- }
+ } else
+ message = "both heartbeats are offline!";
}
} else {
if(!state_.hb_state_standby_) {
if(state_.hb_state_master_) {
state_.mode_ = MODE_MASTER;
return change_mode(old_mode, fd, cmd_q, opt, client_lst);
- } else {
- log_printf(ERROR, "both heartbeats are offline!!!!!!");
- //TODO: sent this to emergency listeners
- }
+ } else
+ message = "both heartbeats are offline!";
}
}
+ if(message) {
+ log_printf(ERROR, message);
+ client_t* client;
+ int listener_cnt = 0;
+ for(client = client_lst; client; client = client->next)
+ if(client->heartbeat_listener && client->fd != fd) {
+ send_response(client->fd, message);
+ listener_cnt++;
+ }
+ log_printf(DEBUG, "sent heartbeat state to %d additional listeners", listener_cnt);
+ }
}
else {
log_printf(ERROR, "unable to update heartbeat status: client not found");
@@ -548,6 +579,7 @@ void process_cmd_listen(const char* param, int fd, client_t* client_lst)
listener->oc_listener = 1;
listener->relay_listener = 1;
listener->silence_listener = 1;
+ listener->heartbeat_listener = 1;
}
else {
if(!strncmp(param, "request", 7))
@@ -564,6 +596,8 @@ void process_cmd_listen(const char* param, int fd, client_t* client_lst)
listener->relay_listener = 1;
else if(!strncmp(param, "silence", 7))
listener->silence_listener = 1;
+ else if(!strncmp(param, "heartbeat", 11))
+ listener->heartbeat_listener = 1;
else if(!strncmp(param, "none", 4)) {
listener->request_listener = 0;
listener->mode_listener = 0;
@@ -572,6 +606,7 @@ void process_cmd_listen(const char* param, int fd, client_t* client_lst)
listener->oc_listener = 0;
listener->relay_listener = 0;
listener->silence_listener = 0;
+ listener->heartbeat_listener = 0;
}
else {
log_printf(DEBUG, "unkown listener type '%s'", param);