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ZyklonB: add connection timeouts

This commit is contained in:
Přemysl Eric Janouch 2014-08-10 04:58:24 +02:00
parent 19c170a7aa
commit 479da40a3d
1 changed files with 33 additions and 6 deletions
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39
zyklonb.c
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@ -204,8 +204,6 @@ try_finish_quit (struct bot_context *ctx)
static bool irc_send (struct bot_context *ctx,
const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
// XXX: is it okay to just ignore the return value and wait until we receive
// it in on_irc_readable()?
static bool
irc_send (struct bot_context *ctx, const char *format, ...)
{
@ -1469,6 +1467,36 @@ on_irc_disconnected (struct bot_context *ctx)
irc_try_reconnect (ctx);
}
static void
on_irc_ping_timeout (void *user_data)
{
struct bot_context *ctx = user_data;
print_error ("connection timeout");
on_irc_disconnected (ctx);
}
static void
on_irc_timeout (void *user_data)
{
// Provoke a response from the server
struct bot_context *ctx = user_data;
irc_send (ctx, "PING :%s", str_map_find (&ctx->config, "nickname"));
}
static void
irc_reset_timeouts (struct bot_context *ctx)
{
ssize_t i;
struct poller_timers *timers = &ctx->poller.timers;
while ((i = poller_timers_find_by_data (timers, ctx)) != -1)
poller_timers_remove_at_index (timers, i);
poller_timers_add (&ctx->poller.timers,
on_irc_timeout, ctx, 3 * 60 * 1000);
poller_timers_add (&ctx->poller.timers,
on_irc_ping_timeout, ctx, (3 * 60 + 30) * 1000);
}
static void
on_irc_readable (const struct pollfd *fd, struct bot_context *ctx)
{
@ -1515,6 +1543,8 @@ end:
if (disconnected)
on_irc_disconnected (ctx);
else
irc_reset_timeouts (ctx);
}
static bool
@ -1550,16 +1580,13 @@ irc_connect (struct bot_context *ctx, struct error **e)
if (!irc_establish_connection (ctx, irc_host, irc_port, use_ssl, e))
return false;
// TODO: set a timeout on the socket, something like 30 minutes, then we
// should ideally send a PING... or just forcefully reconnect.
//
// TODO: in exec try: 1/ set blocking, 2/ setsockopt() SO_LINGER,
// (struct linger) { .l_onoff = true; .l_linger = 1 /* 1s should do */; }
// 3/ /* O_CLOEXEC */ But only if the QUIT message proves unreliable.
poller_set (&ctx->poller, ctx->irc_fd, POLLIN,
(poller_dispatcher_func) on_irc_readable, ctx);
irc_reset_timeouts (ctx);
// TODO: probably check for errors from these calls as well
irc_send (ctx, "NICK %s", nickname);
irc_send (ctx, "USER %s 8 * :%s", username, realname);
return true;