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Alter the way PINGs for /sping and lag check are used.

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We now send PING <server> :<server> for /spings, and
PING LAG!<cookie>.<tv_sec>.<tv_usec> :<server> for lag checks.  The cookie is
set randomly at server connect time, and means that clients connected to the
same bouncer shouldn't act on each other's lag checks.

We can now remove in_sping entirely - previously it would get out of synch if
you disconnected with a sping in progress.
This commit is contained in:
Kevin Easton
2015-05-04 00:13:08 +10:00
parent 443b87a8aa
commit 9f7cf6b6c2
6 changed files with 109 additions and 101 deletions
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32
source/server.c
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@@ -402,6 +402,28 @@ static void scan_nonblocking(void)
}
#endif
int check_serverlag(void)
{
int i;
struct timeval tv;
get_time(&tv);
for (i = 0; i < server_list_size(); i++)
{
if (is_server_connected(i) && now != get_server_lagtime(i))
{
set_server_lagtime(i, now);
my_send_to_server(i, "PING LAG!%lu.%ld.%ld :%s",
get_server_lag_cookie(i),
(long)tv.tv_sec, (long)tv.tv_usec, get_server_itsname(i));
set_server_lag(i, -1);
}
}
return 0;
}
void do_idle_server (void)
{
int i;
@@ -2298,7 +2320,8 @@ void register_server (int ssn_index, char *nick)
*server_list[ssn_index].umode = 0;
server_list[ssn_index].operator = 0;
/* set_umode(ssn_index); */
server_list[ssn_index].login_flags |= LOGGED_IN;
server_list[ssn_index].login_flags |= LOGGED_IN;
server_list[ssn_index].lag_cookie = random_number(0);
from_server = old_from_server;
check_host();
}
@@ -2336,7 +2359,6 @@ void BX_set_server_lag (int gso_index, int secs)
server_list[gso_index].lag = secs;
}
time_t get_server_lagtime (int gso_index)
{
if ((gso_index < 0 || gso_index >= number_of_servers))
@@ -2350,6 +2372,12 @@ void set_server_lagtime (int gso_index, time_t secs)
server_list[gso_index].lag_time = secs;
}
unsigned long get_server_lag_cookie(int gso_index)
{
if ((gso_index < 0 || gso_index >= number_of_servers))
return 0;
return server_list[gso_index].lag_cookie;
}
int BX_get_server_motd (int gsm_index)
{