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Support code for control mode flow control: allow clients to have

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separate offsets (used and acknowleged) into the pane buffers; turn off
reading from panes when no clients can accept the data; and add a -A
flag to refresh-client to let clients turn receiving a pane on and off.
This commit is contained in:
nicm
2020-05-21 07:24:13 +00:00
parent 6bde1c1837
commit 31e3f2d530
11 changed files with 357 additions and 95 deletions
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26
cmd-pipe-pane.c
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@ -56,16 +56,17 @@ const struct cmd_entry cmd_pipe_pane_entry = {
static enum cmd_retval
cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = cmd_get_args(self);
struct cmd_find_state *target = cmdq_get_target(item);
struct client *tc = cmdq_get_target_client(item);
struct window_pane *wp = target->wp;
struct session *s = target->s;
struct winlink *wl = target->wl;
char *cmd;
int old_fd, pipe_fd[2], null_fd, in, out;
struct format_tree *ft;
sigset_t set, oldset;
struct args *args = cmd_get_args(self);
struct cmd_find_state *target = cmdq_get_target(item);
struct client *tc = cmdq_get_target_client(item);
struct window_pane *wp = target->wp;
struct session *s = target->s;
struct winlink *wl = target->wl;
struct window_pane_offset *wpo = &wp->pipe_offset;
char *cmd;
int old_fd, pipe_fd[2], null_fd, in, out;
struct format_tree *ft;
sigset_t set, oldset;
/* Destroy the old pipe. */
old_fd = wp->pipe_fd;
@ -159,10 +160,7 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
close(pipe_fd[1]);
wp->pipe_fd = pipe_fd[0];
if (wp->fd != -1)
wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
else
wp->pipe_off = 0;
memcpy(wpo, &wp->offset, sizeof *wpo);
setblocking(wp->pipe_fd, 0);
wp->pipe_event = bufferevent_new(wp->pipe_fd,