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authorTiago Cunha <tcunha@gmx.com>2010-08-11 22:16:04 +0000
committerTiago Cunha <tcunha@gmx.com>2010-08-11 22:16:04 +0000
commit761bd3c9e3abd835086fad770e32d00642b74591 (patch)
tree0197279d824c92e9fd013751588daa1281945c73 /server-window.c
parent5e9429e2d6eb2b6da947cb8e26ee2369a0e110e2 (diff)
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Sync OpenBSD patchset 745:
Change the way backoff works. Instead of stopping reading from the pty when the client tty backs up too much, just stop updating the tty and only update the internal screen. Then when the tty recovers, force a redraw. This prevents a dodgy client from causing other clients to go into backoff while still allowing tmux to be responsive (locally) when seeing lots of output.
Diffstat (limited to 'server-window.c')
-rw-r--r--server-window.c38
1 files changed, 1 insertions, 37 deletions
diff --git a/server-window.c b/server-window.c
index dc3464bf..a0d4e737 100644
--- a/server-window.c
+++ b/server-window.c
@@ -1,4 +1,4 @@
-/* $Id: server-window.c,v 1.16 2010-07-20 17:36:41 tcunha Exp $ */
+/* $Id: server-window.c,v 1.17 2010-08-11 22:16:03 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -29,31 +29,6 @@ int server_window_check_activity(struct session *, struct winlink *);
int server_window_check_content(
struct session *, struct winlink *, struct window_pane *);
-/* Check if this window should suspend reading. */
-int
-server_window_backoff(struct window_pane *wp)
-{
- struct client *c;
- u_int i;
-
- if (!window_pane_visible(wp))
- return (0);
-
- for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
- c = ARRAY_ITEM(&clients, i);
- if (c == NULL || c->session == NULL)
- continue;
- if ((c->flags & (CLIENT_SUSPENDED|CLIENT_DEAD)) != 0)
- continue;
- if (c->session->curw->window != wp->window)
- continue;
-
- if (EVBUFFER_LENGTH(c->tty.event->output) > BACKOFF_THRESHOLD)
- return (1);
- }
- return (0);
-}
-
/* Window functions that need to happen every loop. */
void
server_window_loop(void)
@@ -69,17 +44,6 @@ server_window_loop(void)
if (w == NULL)
continue;
- TAILQ_FOREACH(wp, &w->panes, entry) {
- if (wp->fd == -1)
- continue;
- if (!(wp->flags & PANE_FREEZE)) {
- if (server_window_backoff(wp))
- bufferevent_disable(wp->event, EV_READ);
- else
- bufferevent_enable(wp->event, EV_READ);
- }
- }
-
for (j = 0; j < ARRAY_LENGTH(&sessions); j++) {
s = ARRAY_ITEM(&sessions, j);
if (s == NULL)