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Instead of sending all data to control mode clients as fast as possible,

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add a limit of how much data will be sent to the client and try to use
it for panes with some degree of fairness. GitHub issue 2217, with
George Nachman.
This commit is contained in:
nicm
2020-06-01 09:43:00 +00:00
parent 175e45005f
commit a54a88edd6
11 changed files with 490 additions and 176 deletions
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24
window.c
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@ -944,16 +944,17 @@ window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
new_data = window_pane_get_new_data(wp, wpo, &new_size);
if (new_size > 0) {
bufferevent_write(wp->pipe_event, new_data, new_size);
window_pane_update_used_data(wp, wpo, new_size, 1);
window_pane_update_used_data(wp, wpo, new_size);
}
}
log_debug("%%%u has %zu bytes", wp->id, size);
TAILQ_FOREACH(c, &clients, entry) {
if (c->session != NULL && c->flags & CLIENT_CONTROL)
if (c->session != NULL && (c->flags & CLIENT_CONTROL))
control_write_output(c, wp);
}
input_parse_pane(wp);
bufferevent_disable(wp->event, EV_READ);
}
static void
@ -978,7 +979,6 @@ window_pane_set_event(struct window_pane *wp)
NULL, window_pane_error_callback, wp);
wp->ictx = input_init(wp, wp->event);
bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
}
@ -1559,27 +1559,11 @@ window_pane_get_new_data(struct window_pane *wp,
void
window_pane_update_used_data(struct window_pane *wp,
struct window_pane_offset *wpo, size_t size, int acknowledge)
struct window_pane_offset *wpo, size_t size)
{
size_t used = wpo->used - wp->base_offset;
if (size > EVBUFFER_LENGTH(wp->event->input) - used)
size = EVBUFFER_LENGTH(wp->event->input) - used;
wpo->used += size;
if (acknowledge)
window_pane_acknowledge_data(wp, wpo, size);
}
void
window_pane_acknowledge_data(struct window_pane *wp,
struct window_pane_offset *wpo, size_t size)
{
size_t acknowledged = wpo->acknowledged - wp->base_offset;
if (size > EVBUFFER_LENGTH(wp->event->input) - acknowledged)
size = EVBUFFER_LENGTH(wp->event->input) - acknowledged;
wpo->acknowledged += size;
if (wpo->acknowledged > wpo->used)
wpo->acknowledged = wpo->used;
}