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Merge remote-tracking branch 'refs/remotes/tmux-openbsd/master'

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* refs/remotes/tmux-openbsd/master:
  Do not let a stuck client prevent the server from exiting - give up after 10 seconds. GitHub issue 5444 from Ben Maurer.
This commit is contained in:
tmux update bot
2026-08-03 21:33:23 +00:00
parent f07a76d959 114aa68082
commit 7a431ec7b9
3 changed files with 68 additions and 5 deletions
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49
server-client.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: server-client.c,v 1.500 2026/07/28 13:17:45 nicm Exp $ */
/* $OpenBSD: server-client.c,v 1.501 2026/08/03 20:18:20 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -37,6 +37,7 @@ static key_code server_client_check_mouse(struct client *, struct key_event *);
static void server_client_repeat_timer(int, short, void *);
static void server_client_click_timer(int, short, void *);
static void server_client_check_exit(struct client *);
static void server_client_exit_timer(int, short, void *);
static void server_client_check_redraw(struct client *);
static void server_client_check_modes(struct client *);
static void server_client_set_title(struct client *);
@@ -309,6 +310,7 @@ server_client_create(int fd)
evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
evtimer_set(&c->click_timer, server_client_click_timer, c);
evtimer_set(&c->exit_timer, server_client_exit_timer, c);
c->click_wp = -1;
@@ -525,6 +527,7 @@ server_client_lost(struct client *c)
evtimer_del(&c->repeat_timer);
evtimer_del(&c->click_timer);
evtimer_del(&c->exit_timer);
if (event_initialized(&c->cycle_timer))
evtimer_del(&c->cycle_timer);
@@ -2285,6 +2288,39 @@ server_client_click_timer(__unused int fd, __unused short events, void *data)
c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK);
}
/* Start client exit timer. */
static void
server_client_start_exit_timer(struct client *c)
{
struct timeval tv = { .tv_sec = 10 };
if (!evtimer_pending(&c->exit_timer, NULL))
evtimer_add(&c->exit_timer, &tv);
}
/* Exit timer has expired: stop waiting for the client. */
static void
server_client_exit_timer(__unused int fd, __unused short events, void *data)
{
struct client *c = data;
struct client_file *cf;
if (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED))
return;
if (c->flags & CLIENT_EXITED) {
log_debug("%s: %s took too long to exit", __func__, c->name);
server_client_lost(c);
} else if (c->flags & CLIENT_EXIT) {
log_debug("%s: %s took too long to flush", __func__, c->name);
if (c->flags & CLIENT_CONTROL)
control_discard_all(c);
RB_FOREACH(cf, client_files, &c->files)
evbuffer_drain(cf->buffer, EVBUFFER_LENGTH(cf->buffer));
server_client_check_exit(c);
}
}
/* Check if client should be exited. */
static void
server_client_check_exit(struct client *c)
@@ -2301,15 +2337,22 @@ server_client_check_exit(struct client *c)
if (c->flags & CLIENT_CONTROL) {
control_discard(c);
if (!control_all_done(c))
if (!control_all_done(c)) {
server_client_start_exit_timer(c);
return;
}
}
RB_FOREACH(cf, client_files, &c->files) {
if (EVBUFFER_LENGTH(cf->buffer) != 0)
if (EVBUFFER_LENGTH(cf->buffer) != 0) {
server_client_start_exit_timer(c);
return;
}
}
c->flags |= CLIENT_EXITED;
evtimer_del(&c->exit_timer);
server_client_start_exit_timer(c);
switch (c->exit_type) {
case CLIENT_EXIT_RETURN:
if (c->exit_message != NULL)