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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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36
tmux.h
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@ -896,6 +896,12 @@ struct window_mode_entry {
TAILQ_ENTRY (window_mode_entry) entry;
};
/* Offsets into pane buffer. */
struct window_pane_offset {
size_t used;
size_t acknowledged;
};
/* Child window structure. */
struct window_pane {
u_int id;
@ -946,6 +952,8 @@ struct window_pane {
int fd;
struct bufferevent *event;
struct window_pane_offset offset;
size_t base_offset;
struct event resize_timer;
@ -957,7 +965,7 @@ struct window_pane {
int pipe_fd;
struct bufferevent *pipe_event;
size_t pipe_off;
struct window_pane_offset pipe_offset;
struct screen *screen;
struct screen base;
@ -1541,6 +1549,18 @@ struct client_window {
};
RB_HEAD(client_windows, client_window);
/* Client offsets. */
struct client_offset {
u_int pane;
struct window_pane_offset offset;
int flags;
#define CLIENT_OFFSET_OFF 0x1
RB_ENTRY(client_offset) entry;
};
RB_HEAD(client_offsets, client_offset);
/* Client connection. */
typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
typedef void (*prompt_free_cb)(void *);
@ -1555,6 +1575,7 @@ struct client {
struct cmdq_list *queue;
struct client_windows windows;
struct client_offsets offsets;
pid_t pid;
int fd;
@ -1927,7 +1948,6 @@ char *format_trim_right(const char *, u_int);
/* notify.c */
void notify_hook(struct cmdq_item *, const char *);
void notify_input(struct window_pane *, const u_char *, size_t);
void notify_client(const char *, struct client *);
void notify_session(const char *, struct session *);
void notify_winlink(const char *, struct winlink *);
@ -2339,6 +2359,11 @@ void printflike(1, 2) server_add_message(const char *, ...);
/* server-client.c */
RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
RB_PROTOTYPE(client_offsets, client_offset, entry, server_client_offset_cmp);
struct client_offset *server_client_get_pane_offset(struct client *,
struct window_pane *);
struct client_offset *server_client_add_pane_offset(struct client *,
struct window_pane *);
u_int server_client_how_many(void);
void server_client_set_overlay(struct client *, u_int, overlay_check_cb,
overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
@ -2684,6 +2709,12 @@ void winlink_clear_flags(struct winlink *);
int winlink_shuffle_up(struct session *, struct winlink *);
int window_pane_start_input(struct window_pane *,
struct cmdq_item *, char **);
void *window_pane_get_new_data(struct window_pane *,
struct window_pane_offset *, size_t *);
void window_pane_update_used_data(struct window_pane *,
struct window_pane_offset *, size_t, int);
void window_pane_acknowledge_data(struct window_pane *,
struct window_pane_offset *, size_t);
/* layout.c */
u_int layout_count_cells(struct layout_cell *);
@ -2800,6 +2831,7 @@ char *parse_window_name(const char *);
/* control.c */
void control_start(struct client *);
void printflike(2, 3) control_write(struct client *, const char *, ...);
void control_write_output(struct client *, struct window_pane *);
/* control-notify.c */
void control_notify_input(struct client *, struct window_pane *,