xref: /openbsd-src/usr.bin/tmux/tmux.h (revision c90a81c56dcebd6a1b73fe4aff9b03385b8e63b3)
1 /* $OpenBSD: tmux.h,v 1.852 2018/12/18 13:20:44 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #ifndef TMUX_H
20 #define TMUX_H
21 
22 #include <sys/time.h>
23 #include <sys/queue.h>
24 #include <sys/tree.h>
25 
26 #include <bitstring.h>
27 #include <event.h>
28 #include <limits.h>
29 #include <stdarg.h>
30 #include <stdint.h>
31 #include <stdio.h>
32 #include <termios.h>
33 #include <wchar.h>
34 
35 #include "xmalloc.h"
36 
37 extern char   **environ;
38 
39 struct args;
40 struct client;
41 struct cmd_find_state;
42 struct cmdq_item;
43 struct cmdq_list;
44 struct environ;
45 struct format_job_tree;
46 struct input_ctx;
47 struct job;
48 struct mode_tree_data;
49 struct mouse_event;
50 struct options;
51 struct options_entry;
52 struct session;
53 struct tmuxpeer;
54 struct tmuxproc;
55 struct winlink;
56 
57 /* Client-server protocol version. */
58 #define PROTOCOL_VERSION 8
59 
60 /* Default global configuration file. */
61 #ifndef TMUX_CONF
62 #define TMUX_CONF "/etc/tmux.conf"
63 #endif
64 
65 /* Minimum layout cell size, NOT including border lines. */
66 #define PANE_MINIMUM 1
67 
68 /* Minimum and maximum window size. */
69 #define WINDOW_MINIMUM PANE_MINIMUM
70 #define WINDOW_MAXIMUM 10000
71 
72 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
73 #define NAME_INTERVAL 500000
74 
75 /* Maximum size of data to hold from a pane. */
76 #define READ_SIZE 4096
77 
78 /* Attribute to make GCC check printf-like arguments. */
79 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
80 
81 /* Number of items in array. */
82 #ifndef nitems
83 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
84 #endif
85 
86 /* Alert option values. */
87 #define ALERT_NONE 0
88 #define ALERT_ANY 1
89 #define ALERT_CURRENT 2
90 #define ALERT_OTHER 3
91 
92 /* Visual option values. */
93 #define VISUAL_OFF 0
94 #define VISUAL_ON 1
95 #define VISUAL_BOTH 2
96 
97 /* Special key codes. */
98 #define KEYC_NONE 0xffff00000000ULL
99 #define KEYC_UNKNOWN 0xfffe00000000ULL
100 #define KEYC_BASE 0x000010000000ULL
101 #define KEYC_USER 0x000020000000ULL
102 
103 /* Available user keys. */
104 #define KEYC_NUSER 1000
105 
106 /* Key modifier bits. */
107 #define KEYC_ESCAPE 0x200000000000ULL
108 #define KEYC_CTRL 0x400000000000ULL
109 #define KEYC_SHIFT 0x800000000000ULL
110 #define KEYC_XTERM 0x1000000000000ULL
111 
112 /* Mask to obtain key w/o modifiers. */
113 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_XTERM)
114 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
115 
116 /* Is this a mouse key? */
117 #define KEYC_IS_MOUSE(key) (((key) & KEYC_MASK_KEY) >= KEYC_MOUSE &&	\
118     ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
119 
120 /* Multiple click timeout. */
121 #define KEYC_CLICK_TIMEOUT 300
122 
123 /* Mouse key codes. */
124 #define KEYC_MOUSE_KEY(name)					\
125 	KEYC_ ## name ## _PANE,					\
126 	KEYC_ ## name ## _STATUS,				\
127 	KEYC_ ## name ## _STATUS_LEFT,				\
128 	KEYC_ ## name ## _STATUS_RIGHT,				\
129 	KEYC_ ## name ## _BORDER
130 #define KEYC_MOUSE_STRING(name, s)				\
131 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
132 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
133 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
134 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
135 	{ #s "Border", KEYC_ ## name ## _BORDER }
136 
137 /*
138  * A single key. This can be ASCII or Unicode or one of the keys starting at
139  * KEYC_BASE.
140  */
141 typedef unsigned long long key_code;
142 
143 /* Special key codes. */
144 enum {
145 	/* Focus events. */
146 	KEYC_FOCUS_IN = KEYC_BASE,
147 	KEYC_FOCUS_OUT,
148 
149 	/* "Any" key, used if not found in key table. */
150 	KEYC_ANY,
151 
152 	/* Paste brackets. */
153 	KEYC_PASTE_START,
154 	KEYC_PASTE_END,
155 
156 	/* Mouse keys. */
157 	KEYC_MOUSE, /* unclassified mouse event */
158 	KEYC_DRAGGING, /* dragging in progress */
159 	KEYC_MOUSE_KEY(MOUSEMOVE),
160 	KEYC_MOUSE_KEY(MOUSEDOWN1),
161 	KEYC_MOUSE_KEY(MOUSEDOWN2),
162 	KEYC_MOUSE_KEY(MOUSEDOWN3),
163 	KEYC_MOUSE_KEY(MOUSEUP1),
164 	KEYC_MOUSE_KEY(MOUSEUP2),
165 	KEYC_MOUSE_KEY(MOUSEUP3),
166 	KEYC_MOUSE_KEY(MOUSEDRAG1),
167 	KEYC_MOUSE_KEY(MOUSEDRAG2),
168 	KEYC_MOUSE_KEY(MOUSEDRAG3),
169 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
170 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
171 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
172 	KEYC_MOUSE_KEY(WHEELUP),
173 	KEYC_MOUSE_KEY(WHEELDOWN),
174 	KEYC_MOUSE_KEY(DOUBLECLICK1),
175 	KEYC_MOUSE_KEY(DOUBLECLICK2),
176 	KEYC_MOUSE_KEY(DOUBLECLICK3),
177 	KEYC_MOUSE_KEY(TRIPLECLICK1),
178 	KEYC_MOUSE_KEY(TRIPLECLICK2),
179 	KEYC_MOUSE_KEY(TRIPLECLICK3),
180 
181 	/* Backspace key. */
182 	KEYC_BSPACE,
183 
184 	/* Function keys. */
185 	KEYC_F1,
186 	KEYC_F2,
187 	KEYC_F3,
188 	KEYC_F4,
189 	KEYC_F5,
190 	KEYC_F6,
191 	KEYC_F7,
192 	KEYC_F8,
193 	KEYC_F9,
194 	KEYC_F10,
195 	KEYC_F11,
196 	KEYC_F12,
197 	KEYC_IC,
198 	KEYC_DC,
199 	KEYC_HOME,
200 	KEYC_END,
201 	KEYC_NPAGE,
202 	KEYC_PPAGE,
203 	KEYC_BTAB,
204 
205 	/* Arrow keys. */
206 	KEYC_UP,
207 	KEYC_DOWN,
208 	KEYC_LEFT,
209 	KEYC_RIGHT,
210 
211 	/* Numeric keypad. */
212 	KEYC_KP_SLASH,
213 	KEYC_KP_STAR,
214 	KEYC_KP_MINUS,
215 	KEYC_KP_SEVEN,
216 	KEYC_KP_EIGHT,
217 	KEYC_KP_NINE,
218 	KEYC_KP_PLUS,
219 	KEYC_KP_FOUR,
220 	KEYC_KP_FIVE,
221 	KEYC_KP_SIX,
222 	KEYC_KP_ONE,
223 	KEYC_KP_TWO,
224 	KEYC_KP_THREE,
225 	KEYC_KP_ENTER,
226 	KEYC_KP_ZERO,
227 	KEYC_KP_PERIOD,
228 };
229 
230 /* Termcap codes. */
231 enum tty_code_code {
232 	TTYC_AX = 0,
233 	TTYC_ACSC,
234 	TTYC_BCE,
235 	TTYC_BEL,
236 	TTYC_BLINK,
237 	TTYC_BOLD,
238 	TTYC_CIVIS,
239 	TTYC_CLEAR,
240 	TTYC_CNORM,
241 	TTYC_COLORS,
242 	TTYC_CR,
243 	TTYC_CS,
244 	TTYC_CSR,
245 	TTYC_CUB,
246 	TTYC_CUB1,
247 	TTYC_CUD,
248 	TTYC_CUD1,
249 	TTYC_CUF,
250 	TTYC_CUF1,
251 	TTYC_CUP,
252 	TTYC_CUU,
253 	TTYC_CUU1,
254 	TTYC_CVVIS,
255 	TTYC_DCH,
256 	TTYC_DCH1,
257 	TTYC_DIM,
258 	TTYC_DL,
259 	TTYC_DL1,
260 	TTYC_E3,
261 	TTYC_ECH,
262 	TTYC_ED,
263 	TTYC_EL,
264 	TTYC_EL1,
265 	TTYC_ENACS,
266 	TTYC_FSL,
267 	TTYC_HOME,
268 	TTYC_HPA,
269 	TTYC_ICH,
270 	TTYC_ICH1,
271 	TTYC_IL,
272 	TTYC_IL1,
273 	TTYC_INDN,
274 	TTYC_INVIS,
275 	TTYC_KCBT,
276 	TTYC_KCUB1,
277 	TTYC_KCUD1,
278 	TTYC_KCUF1,
279 	TTYC_KCUU1,
280 	TTYC_KDC2,
281 	TTYC_KDC3,
282 	TTYC_KDC4,
283 	TTYC_KDC5,
284 	TTYC_KDC6,
285 	TTYC_KDC7,
286 	TTYC_KDCH1,
287 	TTYC_KDN2,
288 	TTYC_KDN3,
289 	TTYC_KDN4,
290 	TTYC_KDN5,
291 	TTYC_KDN6,
292 	TTYC_KDN7,
293 	TTYC_KEND,
294 	TTYC_KEND2,
295 	TTYC_KEND3,
296 	TTYC_KEND4,
297 	TTYC_KEND5,
298 	TTYC_KEND6,
299 	TTYC_KEND7,
300 	TTYC_KF1,
301 	TTYC_KF10,
302 	TTYC_KF11,
303 	TTYC_KF12,
304 	TTYC_KF13,
305 	TTYC_KF14,
306 	TTYC_KF15,
307 	TTYC_KF16,
308 	TTYC_KF17,
309 	TTYC_KF18,
310 	TTYC_KF19,
311 	TTYC_KF2,
312 	TTYC_KF20,
313 	TTYC_KF21,
314 	TTYC_KF22,
315 	TTYC_KF23,
316 	TTYC_KF24,
317 	TTYC_KF25,
318 	TTYC_KF26,
319 	TTYC_KF27,
320 	TTYC_KF28,
321 	TTYC_KF29,
322 	TTYC_KF3,
323 	TTYC_KF30,
324 	TTYC_KF31,
325 	TTYC_KF32,
326 	TTYC_KF33,
327 	TTYC_KF34,
328 	TTYC_KF35,
329 	TTYC_KF36,
330 	TTYC_KF37,
331 	TTYC_KF38,
332 	TTYC_KF39,
333 	TTYC_KF4,
334 	TTYC_KF40,
335 	TTYC_KF41,
336 	TTYC_KF42,
337 	TTYC_KF43,
338 	TTYC_KF44,
339 	TTYC_KF45,
340 	TTYC_KF46,
341 	TTYC_KF47,
342 	TTYC_KF48,
343 	TTYC_KF49,
344 	TTYC_KF5,
345 	TTYC_KF50,
346 	TTYC_KF51,
347 	TTYC_KF52,
348 	TTYC_KF53,
349 	TTYC_KF54,
350 	TTYC_KF55,
351 	TTYC_KF56,
352 	TTYC_KF57,
353 	TTYC_KF58,
354 	TTYC_KF59,
355 	TTYC_KF6,
356 	TTYC_KF60,
357 	TTYC_KF61,
358 	TTYC_KF62,
359 	TTYC_KF63,
360 	TTYC_KF7,
361 	TTYC_KF8,
362 	TTYC_KF9,
363 	TTYC_KHOM2,
364 	TTYC_KHOM3,
365 	TTYC_KHOM4,
366 	TTYC_KHOM5,
367 	TTYC_KHOM6,
368 	TTYC_KHOM7,
369 	TTYC_KHOME,
370 	TTYC_KIC2,
371 	TTYC_KIC3,
372 	TTYC_KIC4,
373 	TTYC_KIC5,
374 	TTYC_KIC6,
375 	TTYC_KIC7,
376 	TTYC_KICH1,
377 	TTYC_KIND,
378 	TTYC_KLFT2,
379 	TTYC_KLFT3,
380 	TTYC_KLFT4,
381 	TTYC_KLFT5,
382 	TTYC_KLFT6,
383 	TTYC_KLFT7,
384 	TTYC_KMOUS,
385 	TTYC_KNP,
386 	TTYC_KNXT2,
387 	TTYC_KNXT3,
388 	TTYC_KNXT4,
389 	TTYC_KNXT5,
390 	TTYC_KNXT6,
391 	TTYC_KNXT7,
392 	TTYC_KPP,
393 	TTYC_KPRV2,
394 	TTYC_KPRV3,
395 	TTYC_KPRV4,
396 	TTYC_KPRV5,
397 	TTYC_KPRV6,
398 	TTYC_KPRV7,
399 	TTYC_KRI,
400 	TTYC_KRIT2,
401 	TTYC_KRIT3,
402 	TTYC_KRIT4,
403 	TTYC_KRIT5,
404 	TTYC_KRIT6,
405 	TTYC_KRIT7,
406 	TTYC_KUP2,
407 	TTYC_KUP3,
408 	TTYC_KUP4,
409 	TTYC_KUP5,
410 	TTYC_KUP6,
411 	TTYC_KUP7,
412 	TTYC_MS,
413 	TTYC_OP,
414 	TTYC_REV,
415 	TTYC_RGB,
416 	TTYC_RI,
417 	TTYC_RMACS,
418 	TTYC_RMCUP,
419 	TTYC_RMKX,
420 	TTYC_SE,
421 	TTYC_SETAB,
422 	TTYC_SETAF,
423 	TTYC_SETRGBB,
424 	TTYC_SETRGBF,
425 	TTYC_SGR0,
426 	TTYC_SITM,
427 	TTYC_SMACS,
428 	TTYC_SMCUP,
429 	TTYC_SMKX,
430 	TTYC_SMSO,
431 	TTYC_SMULX,
432 	TTYC_SMUL,
433 	TTYC_SMXX,
434 	TTYC_SS,
435 	TTYC_TC,
436 	TTYC_TSL,
437 	TTYC_U8,
438 	TTYC_VPA,
439 	TTYC_XENL,
440 	TTYC_XT,
441 };
442 
443 /* Message codes. */
444 enum msgtype {
445 	MSG_VERSION = 12,
446 
447 	MSG_IDENTIFY_FLAGS = 100,
448 	MSG_IDENTIFY_TERM,
449 	MSG_IDENTIFY_TTYNAME,
450 	MSG_IDENTIFY_OLDCWD, /* unused */
451 	MSG_IDENTIFY_STDIN,
452 	MSG_IDENTIFY_ENVIRON,
453 	MSG_IDENTIFY_DONE,
454 	MSG_IDENTIFY_CLIENTPID,
455 	MSG_IDENTIFY_CWD,
456 
457 	MSG_COMMAND = 200,
458 	MSG_DETACH,
459 	MSG_DETACHKILL,
460 	MSG_EXIT,
461 	MSG_EXITED,
462 	MSG_EXITING,
463 	MSG_LOCK,
464 	MSG_READY,
465 	MSG_RESIZE,
466 	MSG_SHELL,
467 	MSG_SHUTDOWN,
468 	MSG_STDERR,
469 	MSG_STDIN,
470 	MSG_STDOUT,
471 	MSG_SUSPEND,
472 	MSG_UNLOCK,
473 	MSG_WAKEUP,
474 	MSG_EXEC,
475 };
476 
477 /*
478  * Message data.
479  *
480  * Don't forget to bump PROTOCOL_VERSION if any of these change!
481  */
482 struct msg_command_data {
483 	int	argc;
484 }; /* followed by packed argv */
485 
486 struct msg_stdin_data {
487 	ssize_t	size;
488 	char	data[BUFSIZ];
489 };
490 
491 struct msg_stdout_data {
492 	ssize_t	size;
493 	char	data[BUFSIZ];
494 };
495 
496 struct msg_stderr_data {
497 	ssize_t	size;
498 	char	data[BUFSIZ];
499 };
500 
501 /* Mode keys. */
502 #define MODEKEY_EMACS 0
503 #define MODEKEY_VI 1
504 
505 /* Modes. */
506 #define MODE_CURSOR 0x1
507 #define MODE_INSERT 0x2
508 #define MODE_KCURSOR 0x4
509 #define MODE_KKEYPAD 0x8	/* set = application, clear = number */
510 #define MODE_WRAP 0x10		/* whether lines wrap */
511 #define MODE_MOUSE_STANDARD 0x20
512 #define MODE_MOUSE_BUTTON 0x40
513 #define MODE_BLINKING 0x80
514 #define MODE_MOUSE_UTF8 0x100
515 #define MODE_MOUSE_SGR 0x200
516 #define MODE_BRACKETPASTE 0x400
517 #define MODE_FOCUSON 0x800
518 #define MODE_MOUSE_ALL 0x1000
519 
520 #define ALL_MODES 0xffffff
521 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
522 
523 /*
524  * A single UTF-8 character. UTF8_SIZE must be big enough to hold
525  * combining characters as well, currently at most five (of three
526  * bytes) are supported.
527 */
528 #define UTF8_SIZE 18
529 struct utf8_data {
530 	u_char	data[UTF8_SIZE];
531 
532 	u_char	have;
533 	u_char	size;
534 
535 	u_char	width;	/* 0xff if invalid */
536 } __packed;
537 enum utf8_state {
538 	UTF8_MORE,
539 	UTF8_DONE,
540 	UTF8_ERROR
541 };
542 
543 /* Colour flags. */
544 #define COLOUR_FLAG_256 0x01000000
545 #define COLOUR_FLAG_RGB 0x02000000
546 
547 /* Special colours. */
548 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
549 
550 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
551 #define GRID_ATTR_BRIGHT 0x1
552 #define GRID_ATTR_DIM 0x2
553 #define GRID_ATTR_UNDERSCORE 0x4
554 #define GRID_ATTR_BLINK 0x8
555 #define GRID_ATTR_REVERSE 0x10
556 #define GRID_ATTR_HIDDEN 0x20
557 #define GRID_ATTR_ITALICS 0x40
558 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
559 #define GRID_ATTR_STRIKETHROUGH 0x100
560 #define GRID_ATTR_UNDERSCORE_2 0x200
561 #define GRID_ATTR_UNDERSCORE_3 0x400
562 #define GRID_ATTR_UNDERSCORE_4 0x800
563 #define GRID_ATTR_UNDERSCORE_5 0x1000
564 
565 /* All underscore attributes. */
566 #define GRID_ATTR_ALL_UNDERSCORE \
567 	(GRID_ATTR_UNDERSCORE|	 \
568 	 GRID_ATTR_UNDERSCORE_2| \
569 	 GRID_ATTR_UNDERSCORE_3| \
570 	 GRID_ATTR_UNDERSCORE_4| \
571 	 GRID_ATTR_UNDERSCORE_5)
572 
573 /* Grid flags. */
574 #define GRID_FLAG_FG256 0x1
575 #define GRID_FLAG_BG256 0x2
576 #define GRID_FLAG_PADDING 0x4
577 #define GRID_FLAG_EXTENDED 0x8
578 #define GRID_FLAG_SELECTED 0x10
579 #define GRID_FLAG_NOPALETTE 0x20
580 
581 /* Grid line flags. */
582 #define GRID_LINE_WRAPPED 0x1
583 #define GRID_LINE_EXTENDED 0x2
584 #define GRID_LINE_DEAD 0x4
585 
586 /* Grid cell data. */
587 struct grid_cell {
588 	u_char			flags;
589 	u_short			attr;
590 	int			fg;
591 	int			bg;
592 	struct utf8_data	data;
593 };
594 struct grid_cell_entry {
595 	u_char			flags;
596 	union {
597 		u_int		offset;
598 		struct {
599 			u_char	attr;
600 			u_char	fg;
601 			u_char	bg;
602 			u_char	data;
603 		} data;
604 	};
605 } __packed;
606 
607 /* Grid line. */
608 struct grid_line {
609 	u_int			 cellused;
610 	u_int			 cellsize;
611 	struct grid_cell_entry	*celldata;
612 
613 	u_int			 extdsize;
614 	struct grid_cell	*extddata;
615 
616 	int			 flags;
617 } __packed;
618 
619 /* Entire grid of cells. */
620 struct grid {
621 	int			 flags;
622 #define GRID_HISTORY 0x1 /* scroll lines into history */
623 
624 	u_int			 sx;
625 	u_int			 sy;
626 
627 	u_int			 hscrolled;
628 	u_int			 hsize;
629 	u_int			 hlimit;
630 
631 	struct grid_line	*linedata;
632 };
633 
634 /* Hook data structures. */
635 struct hook {
636 	const char	*name;
637 
638 	struct cmd_list	*cmdlist;
639 
640 	RB_ENTRY(hook)	 entry;
641 };
642 
643 /* Virtual screen. */
644 struct screen_sel;
645 struct screen_titles;
646 struct screen {
647 	char			*title;
648 	struct screen_titles	*titles;
649 
650 	struct grid		*grid;		/* grid data */
651 
652 	u_int			 cx;		/* cursor x */
653 	u_int			 cy;		/* cursor y */
654 
655 	u_int			 cstyle;	/* cursor style */
656 	char			*ccolour;	/* cursor colour string */
657 
658 	u_int			 rupper;	/* scroll region top */
659 	u_int			 rlower;	/* scroll region bottom */
660 
661 	int			 mode;
662 
663 	bitstr_t		*tabs;
664 
665 	struct screen_sel	*sel;
666 };
667 
668 /* Screen write context. */
669 struct screen_write_collect_item;
670 struct screen_write_collect_line;
671 struct screen_write_ctx {
672 	struct window_pane	*wp;
673 	struct screen		*s;
674 
675 	struct screen_write_collect_item *item;
676 	struct screen_write_collect_line *list;
677 	u_int			 scrolled;
678 	u_int			 bg;
679 
680 	u_int			 cells;
681 	u_int			 written;
682 	u_int			 skipped;
683 };
684 
685 /* Screen size. */
686 #define screen_size_x(s) ((s)->grid->sx)
687 #define screen_size_y(s) ((s)->grid->sy)
688 #define screen_hsize(s) ((s)->grid->hsize)
689 #define screen_hlimit(s) ((s)->grid->hlimit)
690 
691 /*
692  * Window mode. Windows can be in several modes and this is used to call the
693  * right function to handle input and output.
694  */
695 struct window_mode {
696 	const char	*name;
697 
698 	struct screen	*(*init)(struct window_pane *, struct cmd_find_state *,
699 			     struct args *);
700 	void		 (*free)(struct window_pane *);
701 	void		 (*resize)(struct window_pane *, u_int, u_int);
702 	void		 (*key)(struct window_pane *, struct client *,
703 			     struct session *, struct winlink *, key_code,
704 			     struct mouse_event *);
705 
706 	const char	*(*key_table)(struct window_pane *);
707 	void		 (*command)(struct window_pane *, struct client *,
708 			     struct session *, struct winlink *, struct args *,
709 			     struct mouse_event *);
710 };
711 #define WINDOW_MODE_TIMEOUT 180
712 
713 /* Child window structure. */
714 struct window_pane {
715 	u_int		 id;
716 	u_int		 active_point;
717 
718 	struct window	*window;
719 
720 	struct layout_cell *layout_cell;
721 	struct layout_cell *saved_layout_cell;
722 
723 	u_int		 sx;
724 	u_int		 sy;
725 
726 	u_int		 osx;
727 	u_int		 osy;
728 
729 	u_int		 xoff;
730 	u_int		 yoff;
731 
732 	int		 flags;
733 #define PANE_REDRAW 0x1
734 #define PANE_DROP 0x2
735 #define PANE_FOCUSED 0x4
736 #define PANE_RESIZE 0x8
737 #define PANE_RESIZEFORCE 0x10
738 #define PANE_FOCUSPUSH 0x20
739 #define PANE_INPUTOFF 0x40
740 #define PANE_CHANGED 0x80
741 #define PANE_EXITED 0x100
742 #define PANE_STATUSREADY 0x200
743 #define PANE_STATUSDRAWN 0x400
744 
745 	int		 argc;
746 	char	       **argv;
747 	char		*shell;
748 	const char	*cwd;
749 
750 	pid_t		 pid;
751 	char		 tty[TTY_NAME_MAX];
752 	int		 status;
753 
754 	int		 fd;
755 	struct bufferevent *event;
756 
757 	struct event	 resize_timer;
758 
759 	struct input_ctx *ictx;
760 
761 	struct grid_cell colgc;
762 
763 	int		*palette;
764 
765 	int		 pipe_fd;
766 	struct bufferevent *pipe_event;
767 	size_t		 pipe_off;
768 
769 	struct screen	*screen;
770 	struct screen	 base;
771 
772 	struct screen	 status_screen;
773 	size_t		 status_size;
774 
775 	/* Saved in alternative screen mode. */
776 	u_int		 saved_cx;
777 	u_int		 saved_cy;
778 	struct grid	*saved_grid;
779 	struct grid_cell saved_cell;
780 
781 	const struct window_mode *mode;
782 	void		*modedata;
783 	struct event	 modetimer;
784 	time_t		 modelast;
785 	u_int		 modeprefix;
786 	char		*searchstr;
787 
788 	TAILQ_ENTRY(window_pane) entry;
789 	RB_ENTRY(window_pane) tree_entry;
790 };
791 TAILQ_HEAD(window_panes, window_pane);
792 RB_HEAD(window_pane_tree, window_pane);
793 
794 /* Window structure. */
795 struct window {
796 	u_int		 id;
797 
798 	char		*name;
799 	struct event	 name_event;
800 	struct timeval	 name_time;
801 
802 	struct event	 alerts_timer;
803 	struct event	 offset_timer;
804 
805 	struct timeval	 activity_time;
806 
807 	struct window_pane *active;
808 	struct window_pane *last;
809 	struct window_panes panes;
810 
811 	int		 lastlayout;
812 	struct layout_cell *layout_root;
813 	struct layout_cell *saved_layout_root;
814 	char		*old_layout;
815 
816 	u_int		 sx;
817 	u_int		 sy;
818 
819 	int		 flags;
820 #define WINDOW_BELL 0x1
821 #define WINDOW_ACTIVITY 0x2
822 #define WINDOW_SILENCE 0x4
823 #define WINDOW_ZOOMED 0x8
824 #define WINDOW_STYLECHANGED 0x10
825 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
826 
827 	int		 alerts_queued;
828 	TAILQ_ENTRY(window) alerts_entry;
829 
830 	struct options	*options;
831 
832 	struct grid_cell style;
833 	struct grid_cell active_style;
834 
835 	u_int		 references;
836 	TAILQ_HEAD(, winlink) winlinks;
837 
838 	RB_ENTRY(window) entry;
839 };
840 RB_HEAD(windows, window);
841 
842 /* Entry on local window list. */
843 struct winlink {
844 	int		 idx;
845 	struct session	*session;
846 	struct window	*window;
847 
848 	size_t		 status_width;
849 	struct grid_cell status_cell;
850 	char		*status_text;
851 
852 	int		 flags;
853 #define WINLINK_BELL 0x1
854 #define WINLINK_ACTIVITY 0x2
855 #define WINLINK_SILENCE 0x4
856 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
857 
858 	RB_ENTRY(winlink) entry;
859 	TAILQ_ENTRY(winlink) wentry;
860 	TAILQ_ENTRY(winlink) sentry;
861 };
862 RB_HEAD(winlinks, winlink);
863 TAILQ_HEAD(winlink_stack, winlink);
864 
865 /* Window size option. */
866 #define WINDOW_SIZE_LARGEST 0
867 #define WINDOW_SIZE_SMALLEST 1
868 #define WINDOW_SIZE_MANUAL 2
869 
870 /* Layout direction. */
871 enum layout_type {
872 	LAYOUT_LEFTRIGHT,
873 	LAYOUT_TOPBOTTOM,
874 	LAYOUT_WINDOWPANE
875 };
876 
877 /* Layout cells queue. */
878 TAILQ_HEAD(layout_cells, layout_cell);
879 
880 /* Layout cell. */
881 struct layout_cell {
882 	enum layout_type type;
883 
884 	struct layout_cell *parent;
885 
886 	u_int		 sx;
887 	u_int		 sy;
888 
889 	u_int		 xoff;
890 	u_int		 yoff;
891 
892 	struct window_pane *wp;
893 	struct layout_cells cells;
894 
895 	TAILQ_ENTRY(layout_cell) entry;
896 };
897 
898 /* Environment variable. */
899 struct environ_entry {
900 	char		*name;
901 	char		*value;
902 
903 	RB_ENTRY(environ_entry) entry;
904 };
905 
906 /* Client session. */
907 struct session_group {
908 	const char		*name;
909 	TAILQ_HEAD(, session)	 sessions;
910 
911 	RB_ENTRY(session_group)	 entry;
912 };
913 RB_HEAD(session_groups, session_group);
914 
915 struct session {
916 	u_int		 id;
917 
918 	char		*name;
919 	const char	*cwd;
920 
921 	struct timeval	 creation_time;
922 	struct timeval	 last_attached_time;
923 	struct timeval	 activity_time;
924 	struct timeval	 last_activity_time;
925 
926 	struct event	 lock_timer;
927 
928 	struct winlink	*curw;
929 	struct winlink_stack lastw;
930 	struct winlinks	 windows;
931 
932 	int		 statusat;
933 
934 	struct hooks	*hooks;
935 	struct options	*options;
936 
937 #define SESSION_PASTING 0x1
938 #define SESSION_ALERTED 0x2
939 	int		 flags;
940 
941 	u_int		 attached;
942 
943 	struct termios	*tio;
944 
945 	struct environ	*environ;
946 
947 	int		 references;
948 
949 	TAILQ_ENTRY(session) gentry;
950 	RB_ENTRY(session)    entry;
951 };
952 RB_HEAD(sessions, session);
953 
954 /* Mouse button masks. */
955 #define MOUSE_MASK_BUTTONS 3
956 #define MOUSE_MASK_SHIFT 4
957 #define MOUSE_MASK_META 8
958 #define MOUSE_MASK_CTRL 16
959 #define MOUSE_MASK_DRAG 32
960 #define MOUSE_MASK_WHEEL 64
961 
962 /* Mouse wheel states. */
963 #define MOUSE_WHEEL_UP 0
964 #define MOUSE_WHEEL_DOWN 1
965 
966 /* Mouse helpers. */
967 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
968 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
969 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
970 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
971 
972 /* Mouse input. */
973 struct mouse_event {
974 	int		valid;
975 
976 	key_code	key;
977 	int		statusat;
978 
979 	u_int		x;
980 	u_int		y;
981 	u_int		b;
982 
983 	u_int		lx;
984 	u_int		ly;
985 	u_int		lb;
986 
987 	u_int		ox;
988 	u_int		oy;
989 
990 	int		s;
991 	int		w;
992 	int		wp;
993 
994 	u_int		sgr_type;
995 	u_int		sgr_b;
996 };
997 
998 /* TTY information. */
999 struct tty_key {
1000 	char		 ch;
1001 	key_code	 key;
1002 
1003 	struct tty_key	*left;
1004 	struct tty_key	*right;
1005 
1006 	struct tty_key	*next;
1007 };
1008 
1009 struct tty_code;
1010 struct tty_term {
1011 	char		*name;
1012 	u_int		 references;
1013 
1014 	char		 acs[UCHAR_MAX + 1][2];
1015 
1016 	struct tty_code	*codes;
1017 
1018 #define TERM_256COLOURS 0x1
1019 #define TERM_EARLYWRAP 0x2
1020 	int		 flags;
1021 
1022 	LIST_ENTRY(tty_term) entry;
1023 };
1024 LIST_HEAD(tty_terms, tty_term);
1025 
1026 struct tty {
1027 	struct client	*client;
1028 
1029 	u_int		 sx;
1030 	u_int		 sy;
1031 
1032 	u_int		 cx;
1033 	u_int		 cy;
1034 	u_int		 cstyle;
1035 	char		*ccolour;
1036 
1037 	int		 oflag;
1038 	u_int		 oox;
1039 	u_int		 ooy;
1040 	u_int		 osx;
1041 	u_int		 osy;
1042 
1043 	int		 mode;
1044 
1045 	u_int		 rlower;
1046 	u_int		 rupper;
1047 
1048 	u_int		 rleft;
1049 	u_int		 rright;
1050 
1051 	int		 fd;
1052 	struct event	 event_in;
1053 	struct evbuffer	*in;
1054 	struct event	 event_out;
1055 	struct evbuffer	*out;
1056 	struct event	 timer;
1057 	size_t		 discarded;
1058 
1059 	struct termios	 tio;
1060 
1061 	struct grid_cell cell;
1062 
1063 	int		 last_wp;
1064 	struct grid_cell last_cell;
1065 
1066 #define TTY_NOCURSOR 0x1
1067 #define TTY_FREEZE 0x2
1068 #define TTY_TIMER 0x4
1069 #define TTY_UTF8 0x8
1070 #define TTY_STARTED 0x10
1071 #define TTY_OPENED 0x20
1072 #define TTY_FOCUS 0x40
1073 #define TTY_BLOCK 0x80
1074 	int		 flags;
1075 
1076 	struct tty_term	*term;
1077 	char		*term_name;
1078 	int		 term_flags;
1079 	enum {
1080 		TTY_VT100,
1081 		TTY_VT101,
1082 		TTY_VT102,
1083 		TTY_VT220,
1084 		TTY_VT320,
1085 		TTY_VT420,
1086 		TTY_UNKNOWN
1087 	} term_type;
1088 
1089 	struct mouse_event mouse;
1090 	int		 mouse_drag_flag;
1091 	void		(*mouse_drag_update)(struct client *,
1092 			    struct mouse_event *);
1093 	void		(*mouse_drag_release)(struct client *,
1094 			    struct mouse_event *);
1095 
1096 	struct event	 key_timer;
1097 	struct tty_key	*key_tree;
1098 };
1099 #define TTY_TYPES \
1100 	{ "VT100", "VT101", "VT102", "VT220", "VT320", "VT420", "Unknown" }
1101 
1102 /* TTY command context. */
1103 struct tty_ctx {
1104 	struct window_pane	*wp;
1105 
1106 	const struct grid_cell	*cell;
1107 	int			 wrapped;
1108 
1109 	u_int		 num;
1110 	void		*ptr;
1111 
1112 	/*
1113 	 * Cursor and region position before the screen was updated - this is
1114 	 * where the command should be applied; the values in the screen have
1115 	 * already been updated.
1116 	 */
1117 	u_int		 ocx;
1118 	u_int		 ocy;
1119 
1120 	u_int		 orupper;
1121 	u_int		 orlower;
1122 
1123 	/* Pane offset. */
1124 	u_int		 xoff;
1125 	u_int		 yoff;
1126 
1127 	/* The background colour used for clearing (erasing). */
1128 	u_int		 bg;
1129 
1130 	/* Window offset and size. */
1131 	int		 bigger;
1132 	u_int		 ox;
1133 	u_int		 oy;
1134 	u_int		 sx;
1135 	u_int		 sy;
1136 };
1137 
1138 /* Saved message entry. */
1139 struct message_entry {
1140 	char	*msg;
1141 	u_int	 msg_num;
1142 	time_t	 msg_time;
1143 	TAILQ_ENTRY(message_entry) entry;
1144 };
1145 
1146 /* Parsed arguments structures. */
1147 struct args_entry;
1148 RB_HEAD(args_tree, args_entry);
1149 struct args {
1150 	struct args_tree	  tree;
1151 	int			  argc;
1152 	char			**argv;
1153 };
1154 
1155 /* Command find structures. */
1156 enum cmd_find_type {
1157 	CMD_FIND_PANE,
1158 	CMD_FIND_WINDOW,
1159 	CMD_FIND_SESSION,
1160 };
1161 struct cmd_find_state {
1162 	int			 flags;
1163 	struct cmd_find_state	*current;
1164 
1165 	struct session		*s;
1166 	struct winlink		*wl;
1167 	struct window		*w;
1168 	struct window_pane	*wp;
1169 	int			 idx;
1170 };
1171 
1172 /* Command find flags. */
1173 #define CMD_FIND_PREFER_UNATTACHED 0x1
1174 #define CMD_FIND_QUIET 0x2
1175 #define CMD_FIND_WINDOW_INDEX 0x4
1176 #define CMD_FIND_DEFAULT_MARKED 0x8
1177 #define CMD_FIND_EXACT_SESSION 0x10
1178 #define CMD_FIND_EXACT_WINDOW 0x20
1179 #define CMD_FIND_CANFAIL 0x40
1180 
1181 /* Command and list of commands. */
1182 struct cmd {
1183 	const struct cmd_entry	*entry;
1184 	struct args		*args;
1185 
1186 	char			*file;
1187 	u_int			 line;
1188 
1189 #define CMD_CONTROL 0x1
1190 	int			 flags;
1191 
1192 	TAILQ_ENTRY(cmd)	 qentry;
1193 };
1194 
1195 struct cmd_list {
1196 	int			 references;
1197 	TAILQ_HEAD(, cmd)	 list;
1198 };
1199 
1200 /* Command return values. */
1201 enum cmd_retval {
1202 	CMD_RETURN_ERROR = -1,
1203 	CMD_RETURN_NORMAL = 0,
1204 	CMD_RETURN_WAIT,
1205 	CMD_RETURN_STOP
1206 };
1207 
1208 /* Command queue item type. */
1209 enum cmdq_type {
1210 	CMDQ_COMMAND,
1211 	CMDQ_CALLBACK,
1212 };
1213 
1214 /* Command queue item shared state. */
1215 struct cmdq_shared {
1216 	int			 references;
1217 
1218 	int			 flags;
1219 #define CMDQ_SHARED_REPEAT 0x1
1220 
1221 	struct format_tree	*formats;
1222 
1223 	struct mouse_event	 mouse;
1224 	struct cmd_find_state	 current;
1225 };
1226 
1227 /* Command queue item. */
1228 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1229 struct cmdq_item {
1230 	const char		*name;
1231 	struct cmdq_list	*queue;
1232 	struct cmdq_item	*next;
1233 
1234 	struct client		*client;
1235 
1236 	enum cmdq_type		 type;
1237 	u_int			 group;
1238 
1239 	u_int			 number;
1240 	time_t			 time;
1241 
1242 	int			 flags;
1243 #define CMDQ_FIRED 0x1
1244 #define CMDQ_WAITING 0x2
1245 #define CMDQ_NOHOOKS 0x4
1246 
1247 	struct cmdq_shared	*shared;
1248 	struct cmd_find_state	 source;
1249 	struct cmd_find_state	 target;
1250 
1251 	struct cmd_list		*cmdlist;
1252 	struct cmd		*cmd;
1253 
1254 	cmdq_cb			 cb;
1255 	void			*data;
1256 
1257 	TAILQ_ENTRY(cmdq_item)	 entry;
1258 };
1259 TAILQ_HEAD(cmdq_list, cmdq_item);
1260 
1261 /* Command definition flag. */
1262 struct cmd_entry_flag {
1263 	char			 flag;
1264 	enum cmd_find_type	 type;
1265 	int			 flags;
1266 };
1267 
1268 /* Command definition. */
1269 struct cmd_entry {
1270 	const char		*name;
1271 	const char		*alias;
1272 
1273 	struct {
1274 		const char	*template;
1275 		int		 lower;
1276 		int		 upper;
1277 	} args;
1278 	const char		*usage;
1279 
1280 	struct cmd_entry_flag	 source;
1281 	struct cmd_entry_flag	 target;
1282 
1283 #define CMD_STARTSERVER 0x1
1284 #define CMD_READONLY 0x2
1285 #define CMD_AFTERHOOK 0x4
1286 	int		 flags;
1287 
1288 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1289 };
1290 
1291 /* Status line. */
1292 struct status_line {
1293 	struct event	 timer;
1294 
1295 	struct screen	 status;
1296 	struct screen	*old_status;
1297 
1298 	int		 window_list_offset;
1299 
1300 	u_int            left_size;
1301 	u_int            right_size;
1302 };
1303 
1304 /* Client connection. */
1305 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1306 typedef void (*prompt_free_cb)(void *);
1307 struct client {
1308 	const char	*name;
1309 	struct tmuxpeer	*peer;
1310 	struct cmdq_list queue;
1311 
1312 	pid_t		 pid;
1313 	int		 fd;
1314 	struct event	 event;
1315 	int		 retval;
1316 
1317 	struct timeval	 creation_time;
1318 	struct timeval	 activity_time;
1319 
1320 	struct environ	*environ;
1321 	struct format_job_tree	*jobs;
1322 
1323 	char		*title;
1324 	const char	*cwd;
1325 
1326 	char		*term;
1327 	char		*ttyname;
1328 	struct tty	 tty;
1329 
1330 	size_t		 written;
1331 	size_t		 discarded;
1332 	size_t		 redraw;
1333 
1334 	void		(*stdin_callback)(struct client *, int, void *);
1335 	void		*stdin_callback_data;
1336 	struct evbuffer	*stdin_data;
1337 	int		 stdin_closed;
1338 	struct evbuffer	*stdout_data;
1339 	struct evbuffer	*stderr_data;
1340 
1341 	struct event	 repeat_timer;
1342 
1343 	struct event	 click_timer;
1344 	u_int		 click_button;
1345 
1346 	struct status_line status;
1347 
1348 #define CLIENT_TERMINAL 0x1
1349 #define CLIENT_LOGIN 0x2
1350 #define CLIENT_EXIT 0x4
1351 #define CLIENT_REDRAWWINDOW 0x8
1352 #define CLIENT_REDRAWSTATUS 0x10
1353 #define CLIENT_REPEAT 0x20
1354 #define CLIENT_SUSPENDED 0x40
1355 #define CLIENT_ATTACHED 0x80
1356 #define CLIENT_IDENTIFY 0x100
1357 #define CLIENT_DEAD 0x200
1358 #define CLIENT_REDRAWBORDERS 0x400
1359 #define CLIENT_READONLY 0x800
1360 #define CLIENT_DETACHING 0x1000
1361 #define CLIENT_CONTROL 0x2000
1362 #define CLIENT_CONTROLCONTROL 0x4000
1363 #define CLIENT_FOCUSED 0x8000
1364 #define CLIENT_UTF8 0x10000
1365 #define CLIENT_256COLOURS 0x20000
1366 #define CLIENT_IDENTIFIED 0x40000
1367 #define CLIENT_STATUSFORCE 0x80000
1368 #define CLIENT_DOUBLECLICK 0x100000
1369 #define CLIENT_TRIPLECLICK 0x200000
1370 #define CLIENT_SIZECHANGED 0x400000
1371 #define CLIENT_STATUSOFF 0x800000
1372 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1373 #define CLIENT_ALLREDRAWFLAGS		\
1374 	(CLIENT_REDRAWWINDOW|		\
1375 	 CLIENT_REDRAWSTATUS|		\
1376 	 CLIENT_REDRAWSTATUSALWAYS|	\
1377 	 CLIENT_REDRAWBORDERS)
1378 #define CLIENT_NOSIZEFLAGS	\
1379 	(CLIENT_EXIT|		\
1380 	 CLIENT_DEAD|		\
1381 	 CLIENT_SUSPENDED|	\
1382 	 CLIENT_DETACHING)
1383 	int		 flags;
1384 	struct key_table *keytable;
1385 
1386 	struct event	 identify_timer;
1387 	void		(*identify_callback)(struct client *,
1388 			     struct window_pane *);
1389 	void		*identify_callback_data;
1390 	struct cmdq_item *identify_callback_item;
1391 
1392 	char		*message_string;
1393 	struct event	 message_timer;
1394 	u_int		 message_next;
1395 	TAILQ_HEAD(, message_entry) message_log;
1396 
1397 	char		*prompt_string;
1398 	struct utf8_data *prompt_buffer;
1399 	size_t		 prompt_index;
1400 	prompt_input_cb	 prompt_inputcb;
1401 	prompt_free_cb	 prompt_freecb;
1402 	void		*prompt_data;
1403 	u_int		 prompt_hindex;
1404 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1405 	struct utf8_data *prompt_saved;
1406 
1407 #define PROMPT_SINGLE 0x1
1408 #define PROMPT_NUMERIC 0x2
1409 #define PROMPT_INCREMENTAL 0x4
1410 #define PROMPT_NOFORMAT 0x8
1411 	int		 prompt_flags;
1412 
1413 	struct session	*session;
1414 	struct session	*last_session;
1415 
1416 	int		 wlmouse;
1417 
1418 	int		 references;
1419 
1420 	void		*pan_window;
1421 	u_int		 pan_ox;
1422 	u_int		 pan_oy;
1423 
1424 	TAILQ_ENTRY(client) entry;
1425 };
1426 TAILQ_HEAD(clients, client);
1427 
1428 /* Key binding and key table. */
1429 struct key_binding {
1430 	key_code		 key;
1431 	struct cmd_list		*cmdlist;
1432 
1433 	int			 flags;
1434 #define KEY_BINDING_REPEAT 0x1
1435 
1436 	RB_ENTRY(key_binding)	 entry;
1437 };
1438 RB_HEAD(key_bindings, key_binding);
1439 
1440 struct key_table {
1441 	const char		*name;
1442 	struct key_bindings	 key_bindings;
1443 
1444 	u_int			 references;
1445 
1446 	RB_ENTRY(key_table)	 entry;
1447 };
1448 RB_HEAD(key_tables, key_table);
1449 
1450 /* Option table entries. */
1451 enum options_table_type {
1452 	OPTIONS_TABLE_STRING,
1453 	OPTIONS_TABLE_NUMBER,
1454 	OPTIONS_TABLE_KEY,
1455 	OPTIONS_TABLE_COLOUR,
1456 	OPTIONS_TABLE_ATTRIBUTES,
1457 	OPTIONS_TABLE_FLAG,
1458 	OPTIONS_TABLE_CHOICE,
1459 	OPTIONS_TABLE_STYLE,
1460 	OPTIONS_TABLE_ARRAY,
1461 };
1462 
1463 enum options_table_scope {
1464 	OPTIONS_TABLE_NONE,
1465 	OPTIONS_TABLE_SERVER,
1466 	OPTIONS_TABLE_SESSION,
1467 	OPTIONS_TABLE_WINDOW,
1468 };
1469 
1470 struct options_table_entry {
1471 	const char		 *name;
1472 	enum options_table_type	  type;
1473 	enum options_table_scope  scope;
1474 
1475 	u_int			  minimum;
1476 	u_int			  maximum;
1477 	const char		**choices;
1478 
1479 	const char		 *default_str;
1480 	long long		  default_num;
1481 
1482 	const char		 *separator;
1483 	const char		 *style;
1484 	const char		 *pattern;
1485 };
1486 
1487 /* Common command usages. */
1488 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1489 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1490 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1491 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1492 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1493 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1494 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1495 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1496 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1497 
1498 /* tmux.c */
1499 extern struct hooks	*global_hooks;
1500 extern struct options	*global_options;
1501 extern struct options	*global_s_options;
1502 extern struct options	*global_w_options;
1503 extern struct environ	*global_environ;
1504 extern struct timeval	 start_time;
1505 extern const char	*socket_path;
1506 extern const char	*shell_command;
1507 extern int		 ptm_fd;
1508 extern const char	*shell_command;
1509 int		 areshell(const char *);
1510 void		 setblocking(int, int);
1511 const char	*find_cwd(void);
1512 const char	*find_home(void);
1513 
1514 /* proc.c */
1515 struct imsg;
1516 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
1517 struct tmuxproc *proc_start(const char *);
1518 void	proc_loop(struct tmuxproc *, int (*)(void));
1519 void	proc_exit(struct tmuxproc *);
1520 void	proc_set_signals(struct tmuxproc *, void(*)(int));
1521 void	proc_clear_signals(struct tmuxproc *, int);
1522 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
1523 	    void (*)(struct imsg *, void *), void *);
1524 void	proc_remove_peer(struct tmuxpeer *);
1525 void	proc_kill_peer(struct tmuxpeer *);
1526 void	proc_toggle_log(struct tmuxproc *);
1527 
1528 /* cfg.c */
1529 extern int cfg_finished;
1530 void	start_cfg(void);
1531 int	load_cfg(const char *, struct client *, struct cmdq_item *, int);
1532 void	set_cfg_file(const char *);
1533 void printflike(1, 2) cfg_add_cause(const char *, ...);
1534 void	cfg_print_causes(struct cmdq_item *);
1535 void	cfg_show_causes(struct session *);
1536 
1537 /* paste.c */
1538 struct paste_buffer;
1539 const char	*paste_buffer_name(struct paste_buffer *);
1540 u_int		 paste_buffer_order(struct paste_buffer *);
1541 time_t		 paste_buffer_created(struct paste_buffer *);
1542 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1543 struct paste_buffer *paste_walk(struct paste_buffer *);
1544 struct paste_buffer *paste_get_top(const char **);
1545 struct paste_buffer *paste_get_name(const char *);
1546 void		 paste_free(struct paste_buffer *);
1547 void		 paste_add(char *, size_t);
1548 int		 paste_rename(const char *, const char *, char **);
1549 int		 paste_set(char *, size_t, const char *, char **);
1550 char		*paste_make_sample(struct paste_buffer *);
1551 
1552 /* format.c */
1553 #define FORMAT_STATUS 0x1
1554 #define FORMAT_FORCE 0x2
1555 #define FORMAT_NOJOBS 0x4
1556 #define FORMAT_NONE 0
1557 #define FORMAT_PANE 0x80000000U
1558 #define FORMAT_WINDOW 0x40000000U
1559 struct format_tree;
1560 int		 format_true(const char *);
1561 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
1562 		     int);
1563 void		 format_free(struct format_tree *);
1564 void printflike(3, 4) format_add(struct format_tree *, const char *,
1565 		     const char *, ...);
1566 char		*format_expand_time(struct format_tree *, const char *, time_t);
1567 char		*format_expand(struct format_tree *, const char *);
1568 char		*format_single(struct cmdq_item *, const char *,
1569 		     struct client *, struct session *, struct winlink *,
1570 		     struct window_pane *);
1571 void		 format_defaults(struct format_tree *, struct client *,
1572 		     struct session *, struct winlink *, struct window_pane *);
1573 void		 format_defaults_window(struct format_tree *, struct window *);
1574 void		 format_defaults_pane(struct format_tree *,
1575 		     struct window_pane *);
1576 void		 format_defaults_paste_buffer(struct format_tree *,
1577 		     struct paste_buffer *);
1578 void		 format_lost_client(struct client *);
1579 
1580 /* hooks.c */
1581 struct hook;
1582 struct hooks	*hooks_get(struct session *);
1583 struct hooks	*hooks_create(struct hooks *);
1584 void		 hooks_free(struct hooks *);
1585 struct hook	*hooks_first(struct hooks *);
1586 struct hook	*hooks_next(struct hook *);
1587 void		 hooks_add(struct hooks *, const char *, struct cmd_list *);
1588 void		 hooks_copy(struct hooks *, struct hooks *);
1589 void		 hooks_remove(struct hooks *, const char *);
1590 struct hook	*hooks_find(struct hooks *, const char *);
1591 void printflike(4, 5) hooks_insert(struct hooks *, struct cmdq_item *,
1592 		    struct cmd_find_state *, const char *, ...);
1593 
1594 /* notify.c */
1595 void	notify_hook(struct cmdq_item *, const char *);
1596 void	notify_input(struct window_pane *, struct evbuffer *);
1597 void	notify_client(const char *, struct client *);
1598 void	notify_session(const char *, struct session *);
1599 void	notify_winlink(const char *, struct winlink *);
1600 void	notify_session_window(const char *, struct session *, struct window *);
1601 void	notify_window(const char *, struct window *);
1602 void	notify_pane(const char *, struct window_pane *);
1603 
1604 /* options.c */
1605 struct options	*options_create(struct options *);
1606 void		 options_free(struct options *);
1607 struct options_entry *options_first(struct options *);
1608 struct options_entry *options_next(struct options_entry *);
1609 struct options_entry *options_empty(struct options *,
1610 		     const struct options_table_entry *);
1611 struct options_entry *options_default(struct options *,
1612 		     const struct options_table_entry *);
1613 const char	*options_name(struct options_entry *);
1614 const struct options_table_entry *options_table_entry(struct options_entry *);
1615 struct options_entry *options_get_only(struct options *, const char *);
1616 struct options_entry *options_get(struct options *, const char *);
1617 void		 options_remove(struct options_entry *);
1618 void		 options_array_clear(struct options_entry *);
1619 const char	*options_array_get(struct options_entry *, u_int);
1620 int		 options_array_set(struct options_entry *, u_int, const char *,
1621 		     int);
1622 int		 options_array_size(struct options_entry *, u_int *);
1623 void		 options_array_assign(struct options_entry *, const char *);
1624 int		 options_isstring(struct options_entry *);
1625 const char	*options_tostring(struct options_entry *, int, int);
1626 char		*options_parse(const char *, int *);
1627 struct options_entry *options_parse_get(struct options *, const char *, int *,
1628 		     int);
1629 char		*options_match(const char *, int *, int *);
1630 struct options_entry *options_match_get(struct options *, const char *, int *,
1631 		     int, int *);
1632 const char	*options_get_string(struct options *, const char *);
1633 long long	 options_get_number(struct options *, const char *);
1634 const struct grid_cell *options_get_style(struct options *, const char *);
1635 struct options_entry * printflike(4, 5) options_set_string(struct options *,
1636 		     const char *, int, const char *, ...);
1637 struct options_entry *options_set_number(struct options *, const char *,
1638 		     long long);
1639 struct options_entry *options_set_style(struct options *, const char *, int,
1640 		     const char *);
1641 enum options_table_scope options_scope_from_flags(struct args *, int,
1642 		     struct cmd_find_state *, struct options **, char **);
1643 void		 options_style_update_new(struct options *,
1644 		     struct options_entry *);
1645 void		 options_style_update_old(struct options *,
1646 		     struct options_entry *);
1647 
1648 /* options-table.c */
1649 extern const struct options_table_entry options_table[];
1650 
1651 /* job.c */
1652 typedef void (*job_update_cb) (struct job *);
1653 typedef void (*job_complete_cb) (struct job *);
1654 typedef void (*job_free_cb) (void *);
1655 #define JOB_NOWAIT 0x1
1656 struct job	*job_run(const char *, struct session *, const char *,
1657 		     job_update_cb, job_complete_cb, job_free_cb, void *, int);
1658 void		 job_free(struct job *);
1659 void		 job_check_died(pid_t, int);
1660 int		 job_get_status(struct job *);
1661 void		*job_get_data(struct job *);
1662 struct bufferevent *job_get_event(struct job *);
1663 void		 job_kill_all(void);
1664 int		 job_still_running(void);
1665 void		 job_print_summary(struct cmdq_item *, int);
1666 
1667 /* environ.c */
1668 struct environ *environ_create(void);
1669 void	environ_free(struct environ *);
1670 struct environ_entry *environ_first(struct environ *);
1671 struct environ_entry *environ_next(struct environ_entry *);
1672 void	environ_copy(struct environ *, struct environ *);
1673 struct environ_entry *environ_find(struct environ *, const char *);
1674 void printflike(3, 4) environ_set(struct environ *, const char *, const char *,
1675 	    ...);
1676 void	environ_clear(struct environ *, const char *);
1677 void	environ_put(struct environ *, const char *);
1678 void	environ_unset(struct environ *, const char *);
1679 void	environ_update(struct options *, struct environ *, struct environ *);
1680 void	environ_push(struct environ *);
1681 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
1682 struct environ *environ_for_session(struct session *, int);
1683 
1684 /* tty.c */
1685 void	tty_create_log(void);
1686 int	tty_window_bigger(struct tty *);
1687 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
1688 void	tty_update_window_offset(struct window *);
1689 void	tty_update_client_offset(struct client *);
1690 void	tty_raw(struct tty *, const char *);
1691 void	tty_attributes(struct tty *, const struct grid_cell *,
1692 	    const struct window_pane *);
1693 void	tty_reset(struct tty *);
1694 void	tty_region_off(struct tty *);
1695 void	tty_margin_off(struct tty *);
1696 void	tty_cursor(struct tty *, u_int, u_int);
1697 void	tty_putcode(struct tty *, enum tty_code_code);
1698 void	tty_putcode1(struct tty *, enum tty_code_code, int);
1699 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
1700 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
1701 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
1702 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
1703 	    const void *);
1704 void	tty_puts(struct tty *, const char *);
1705 void	tty_putc(struct tty *, u_char);
1706 void	tty_putn(struct tty *, const void *, size_t, u_int);
1707 int	tty_init(struct tty *, struct client *, int, char *);
1708 void	tty_resize(struct tty *);
1709 void	tty_set_size(struct tty *, u_int, u_int);
1710 void	tty_start_tty(struct tty *);
1711 void	tty_stop_tty(struct tty *);
1712 void	tty_set_title(struct tty *, const char *);
1713 void	tty_update_mode(struct tty *, int, struct screen *);
1714 void	tty_draw_line(struct tty *, const struct window_pane *, struct screen *,
1715 	    u_int, u_int, u_int, u_int, u_int);
1716 int	tty_open(struct tty *, char **);
1717 void	tty_close(struct tty *);
1718 void	tty_free(struct tty *);
1719 void	tty_set_type(struct tty *, int);
1720 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
1721 	    struct tty_ctx *);
1722 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1723 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
1724 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
1725 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1726 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1727 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1728 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1729 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1730 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1731 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1732 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
1733 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1734 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
1735 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1736 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1737 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1738 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
1739 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1740 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
1741 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
1742 
1743 /* tty-term.c */
1744 extern struct tty_terms tty_terms;
1745 u_int		 tty_term_ncodes(void);
1746 struct tty_term *tty_term_find(char *, int, char **);
1747 void		 tty_term_free(struct tty_term *);
1748 int		 tty_term_has(struct tty_term *, enum tty_code_code);
1749 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
1750 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
1751 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
1752 		     int);
1753 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
1754 		     int, int);
1755 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
1756 		     const void *);
1757 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
1758 		     const void *, const void *);
1759 int		 tty_term_number(struct tty_term *, enum tty_code_code);
1760 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
1761 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
1762 
1763 /* tty-acs.c */
1764 int		 tty_acs_needed(struct tty *);
1765 const char	*tty_acs_get(struct tty *, u_char);
1766 
1767 /* tty-keys.c */
1768 void		tty_keys_build(struct tty *);
1769 void		tty_keys_free(struct tty *);
1770 key_code	tty_keys_next(struct tty *);
1771 
1772 /* arguments.c */
1773 void		 args_set(struct args *, u_char, const char *);
1774 struct args	*args_parse(const char *, int, char **);
1775 void		 args_free(struct args *);
1776 char		*args_print(struct args *);
1777 int		 args_has(struct args *, u_char);
1778 const char	*args_get(struct args *, u_char);
1779 long long	 args_strtonum(struct args *, u_char, long long, long long,
1780 		     char **);
1781 
1782 /* cmd-find.c */
1783 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
1784 		     const char *, enum cmd_find_type, int);
1785 struct client	*cmd_find_best_client(struct session *);
1786 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
1787 void		 cmd_find_clear_state(struct cmd_find_state *, int);
1788 int		 cmd_find_empty_state(struct cmd_find_state *);
1789 int		 cmd_find_valid_state(struct cmd_find_state *);
1790 void		 cmd_find_copy_state(struct cmd_find_state *,
1791 		     struct cmd_find_state *);
1792 void		 cmd_find_from_session(struct cmd_find_state *,
1793 		     struct session *, int);
1794 void		 cmd_find_from_winlink(struct cmd_find_state *,
1795 		     struct winlink *, int);
1796 int		 cmd_find_from_session_window(struct cmd_find_state *,
1797 		     struct session *, struct window *, int);
1798 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
1799 		     int);
1800 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
1801 		     struct winlink *, struct window_pane *, int);
1802 int		 cmd_find_from_pane(struct cmd_find_state *,
1803 		     struct window_pane *, int);
1804 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
1805 		     int);
1806 int		 cmd_find_from_mouse(struct cmd_find_state *,
1807 		     struct mouse_event *, int);
1808 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
1809 
1810 /* cmd.c */
1811 void		 cmd_log_argv(int, char **, const char *);
1812 int		 cmd_pack_argv(int, char **, char *, size_t);
1813 int		 cmd_unpack_argv(char *, size_t, int, char ***);
1814 char	       **cmd_copy_argv(int, char **);
1815 void		 cmd_free_argv(int, char **);
1816 char		*cmd_stringify_argv(int, char **);
1817 struct cmd	*cmd_parse(int, char **, const char *, u_int, char **);
1818 char		*cmd_print(struct cmd *);
1819 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
1820 		     u_int *, u_int *, int);
1821 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
1822 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
1823 		     struct winlink **);
1824 char		*cmd_template_replace(const char *, const char *, int);
1825 extern const struct cmd_entry *cmd_table[];
1826 
1827 /* cmd-attach-session.c */
1828 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
1829 		     const char *, int);
1830 
1831 /* cmd-list.c */
1832 struct cmd_list	*cmd_list_parse(int, char **, const char *, u_int, char **);
1833 void		 cmd_list_free(struct cmd_list *);
1834 char		*cmd_list_print(struct cmd_list *);
1835 
1836 /* cmd-queue.c */
1837 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmd_find_state *,
1838 		     struct mouse_event *, int);
1839 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
1840 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
1841 void		 cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
1842 void		 cmdq_append(struct client *, struct cmdq_item *);
1843 void printflike(3, 4) cmdq_format(struct cmdq_item *, const char *,
1844 		     const char *, ...);
1845 u_int		 cmdq_next(struct client *);
1846 void		 cmdq_guard(struct cmdq_item *, const char *, int);
1847 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
1848 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
1849 
1850 /* cmd-string.c */
1851 int		 cmd_string_split(const char *, int *, char ***);
1852 struct cmd_list	*cmd_string_parse(const char *, const char *, u_int, char **);
1853 
1854 /* cmd-wait-for.c */
1855 void	cmd_wait_for_flush(void);
1856 
1857 /* client.c */
1858 int	client_main(struct event_base *, int, char **, int);
1859 
1860 /* key-bindings.c */
1861 struct key_table *key_bindings_get_table(const char *, int);
1862 struct key_table *key_bindings_first_table(void);
1863 struct key_table *key_bindings_next_table(struct key_table *);
1864 void	 key_bindings_unref_table(struct key_table *);
1865 struct key_binding *key_bindings_get(struct key_table *, key_code);
1866 struct key_binding *key_bindings_first(struct key_table *);
1867 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
1868 void	 key_bindings_add(const char *, key_code, int, struct cmd_list *);
1869 void	 key_bindings_remove(const char *, key_code);
1870 void	 key_bindings_remove_table(const char *);
1871 void	 key_bindings_init(void);
1872 void	 key_bindings_dispatch(struct key_binding *, struct cmdq_item *,
1873 	     struct client *, struct mouse_event *, struct cmd_find_state *);
1874 
1875 /* key-string.c */
1876 key_code	 key_string_lookup_string(const char *);
1877 const char	*key_string_lookup_key(key_code);
1878 
1879 /* alerts.c */
1880 void	alerts_reset_all(void);
1881 void	alerts_queue(struct window *, int);
1882 void	alerts_check_session(struct session *);
1883 
1884 /* server.c */
1885 extern struct tmuxproc *server_proc;
1886 extern struct clients clients;
1887 extern struct cmd_find_state marked_pane;
1888 void	 server_set_marked(struct session *, struct winlink *,
1889 	     struct window_pane *);
1890 void	 server_clear_marked(void);
1891 int	 server_is_marked(struct session *, struct winlink *,
1892 	     struct window_pane *);
1893 int	 server_check_marked(void);
1894 int	 server_start(struct tmuxproc *, struct event_base *, int, char *);
1895 void	 server_update_socket(void);
1896 void	 server_add_accept(int);
1897 
1898 /* server-client.c */
1899 u_int	 server_client_how_many(void);
1900 void	 server_client_set_identify(struct client *, u_int);
1901 void	 server_client_set_key_table(struct client *, const char *);
1902 const char *server_client_get_key_table(struct client *);
1903 int	 server_client_check_nested(struct client *);
1904 void	 server_client_handle_key(struct client *, key_code);
1905 struct client *server_client_create(int);
1906 int	 server_client_open(struct client *, char **);
1907 void	 server_client_unref(struct client *);
1908 void	 server_client_lost(struct client *);
1909 void	 server_client_suspend(struct client *);
1910 void	 server_client_detach(struct client *, enum msgtype);
1911 void	 server_client_exec(struct client *, const char *);
1912 void	 server_client_loop(void);
1913 void	 server_client_push_stdout(struct client *);
1914 void	 server_client_push_stderr(struct client *);
1915 void printflike(2, 3) server_client_add_message(struct client *, const char *,
1916 	     ...);
1917 char	*server_client_get_path(struct client *, const char *);
1918 const char *server_client_get_cwd(struct client *, struct session *);
1919 
1920 /* server-fn.c */
1921 void	 server_redraw_client(struct client *);
1922 void	 server_status_client(struct client *);
1923 void	 server_redraw_session(struct session *);
1924 void	 server_redraw_session_group(struct session *);
1925 void	 server_status_session(struct session *);
1926 void	 server_status_session_group(struct session *);
1927 void	 server_redraw_window(struct window *);
1928 void	 server_redraw_window_borders(struct window *);
1929 void	 server_status_window(struct window *);
1930 void	 server_lock(void);
1931 void	 server_lock_session(struct session *);
1932 void	 server_lock_client(struct client *);
1933 void	 server_kill_pane(struct window_pane *);
1934 void	 server_kill_window(struct window *);
1935 int	 server_link_window(struct session *,
1936 	     struct winlink *, struct session *, int, int, int, char **);
1937 void	 server_unlink_window(struct session *, struct winlink *);
1938 void	 server_destroy_pane(struct window_pane *, int);
1939 void	 server_destroy_session(struct session *);
1940 void	 server_check_unattached(void);
1941 int	 server_set_stdin_callback(struct client *, void (*)(struct client *,
1942 	     int, void *), void *, char **);
1943 void	 server_unzoom_window(struct window *);
1944 
1945 /* status.c */
1946 void	 status_timer_start(struct client *);
1947 void	 status_timer_start_all(void);
1948 void	 status_update_saved(struct session *);
1949 int	 status_at_line(struct client *);
1950 u_int	 status_line_size(struct client *);
1951 struct window *status_get_window_at(struct client *, u_int);
1952 int	 status_redraw(struct client *);
1953 void printflike(2, 3) status_message_set(struct client *, const char *, ...);
1954 void	 status_message_clear(struct client *);
1955 int	 status_message_redraw(struct client *);
1956 void	 status_prompt_set(struct client *, const char *, const char *,
1957 	     prompt_input_cb, prompt_free_cb, void *, int);
1958 void	 status_prompt_clear(struct client *);
1959 int	 status_prompt_redraw(struct client *);
1960 int	 status_prompt_key(struct client *, key_code);
1961 void	 status_prompt_update(struct client *, const char *, const char *);
1962 void	 status_prompt_load_history(void);
1963 void	 status_prompt_save_history(void);
1964 
1965 /* resize.c */
1966 void	 resize_window(struct window *, u_int, u_int);
1967 void	 default_window_size(struct session *, struct window *, u_int *,
1968 	     u_int *, int);
1969 void	 recalculate_sizes(void);
1970 
1971 /* input.c */
1972 void	 input_init(struct window_pane *);
1973 void	 input_free(struct window_pane *);
1974 void	 input_reset(struct window_pane *, int);
1975 struct evbuffer *input_pending(struct window_pane *);
1976 void	 input_parse(struct window_pane *);
1977 
1978 /* input-key.c */
1979 void	 input_key(struct window_pane *, key_code, struct mouse_event *);
1980 
1981 /* xterm-keys.c */
1982 char	*xterm_keys_lookup(key_code);
1983 int	 xterm_keys_find(const char *, size_t, size_t *, key_code *);
1984 
1985 /* colour.c */
1986 int	 colour_find_rgb(u_char, u_char, u_char);
1987 int	 colour_join_rgb(u_char, u_char, u_char);
1988 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
1989 const char *colour_tostring(int);
1990 int	 colour_fromstring(const char *s);
1991 u_char	 colour_256to16(u_char);
1992 
1993 /* attributes.c */
1994 const char *attributes_tostring(int);
1995 int	 attributes_fromstring(const char *);
1996 
1997 /* grid.c */
1998 extern const struct grid_cell grid_default_cell;
1999 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2000 struct grid *grid_create(u_int, u_int, u_int);
2001 void	 grid_destroy(struct grid *);
2002 int	 grid_compare(struct grid *, struct grid *);
2003 void	 grid_collect_history(struct grid *);
2004 void	 grid_scroll_history(struct grid *, u_int);
2005 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2006 void	 grid_clear_history(struct grid *);
2007 const struct grid_line *grid_peek_line(struct grid *, u_int);
2008 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2009 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2010 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2011 	     const char *, size_t);
2012 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2013 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2014 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2015 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2016 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2017 	     struct grid_cell **, int, int, int);
2018 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2019 	     u_int);
2020 void	 grid_reflow(struct grid *, u_int, u_int *);
2021 struct grid_line *grid_get_line(struct grid *, u_int);
2022 void	 grid_adjust_lines(struct grid *, u_int);
2023 
2024 /* grid-view.c */
2025 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2026 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2027 	     const struct grid_cell *);
2028 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2029 	     const struct grid_cell *, const char *, size_t);
2030 void	 grid_view_clear_history(struct grid *, u_int);
2031 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2032 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2033 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2034 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2035 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2036 	     u_int);
2037 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2038 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2039 	     u_int);
2040 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2041 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2042 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2043 
2044 /* screen-write.c */
2045 void	 screen_write_start(struct screen_write_ctx *, struct window_pane *,
2046 	     struct screen *);
2047 void	 screen_write_stop(struct screen_write_ctx *);
2048 void	 screen_write_reset(struct screen_write_ctx *);
2049 size_t printflike(1, 2) screen_write_cstrlen(const char *, ...);
2050 void printflike(4, 5) screen_write_cnputs(struct screen_write_ctx *,
2051 	     ssize_t, const struct grid_cell *, const char *, ...);
2052 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2053 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2054 	     const struct grid_cell *, const char *, ...);
2055 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2056 	     ssize_t, const struct grid_cell *, const char *, ...);
2057 void	 screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2058 	     const struct grid_cell *, const char *, va_list);
2059 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2060 	     u_char);
2061 void	 screen_write_copy(struct screen_write_ctx *, struct screen *, u_int,
2062 	     u_int, u_int, u_int, bitstr_t *, const struct grid_cell *);
2063 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2064 	     u_int, u_int, u_int, u_int);
2065 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2066 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2067 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int);
2068 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2069 	     u_int);
2070 void	 screen_write_backspace(struct screen_write_ctx *);
2071 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2072 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2073 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2074 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2075 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2076 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2077 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2078 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2079 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2080 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2081 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2082 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2083 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2084 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2085 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2086 void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
2087 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2088 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2089 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2090 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2091 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2092 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2093 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2094 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2095 void	 screen_write_clearhistory(struct screen_write_ctx *);
2096 void	 screen_write_collect_end(struct screen_write_ctx *);
2097 void	 screen_write_collect_add(struct screen_write_ctx *,
2098 	     const struct grid_cell *);
2099 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2100 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2101 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2102 
2103 /* screen-redraw.c */
2104 void	 screen_redraw_screen(struct client *);
2105 void	 screen_redraw_pane(struct client *, struct window_pane *);
2106 
2107 /* screen.c */
2108 void	 screen_init(struct screen *, u_int, u_int, u_int);
2109 void	 screen_reinit(struct screen *);
2110 void	 screen_free(struct screen *);
2111 void	 screen_reset_tabs(struct screen *);
2112 void	 screen_set_cursor_style(struct screen *, u_int);
2113 void	 screen_set_cursor_colour(struct screen *, const char *);
2114 void	 screen_set_title(struct screen *, const char *);
2115 void	 screen_push_title(struct screen *);
2116 void	 screen_pop_title(struct screen *);
2117 void	 screen_resize(struct screen *, u_int, u_int, int);
2118 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2119 	     u_int, int, struct grid_cell *);
2120 void	 screen_clear_selection(struct screen *);
2121 void	 screen_hide_selection(struct screen *);
2122 int	 screen_check_selection(struct screen *, u_int, u_int);
2123 void	 screen_select_cell(struct screen *, struct grid_cell *,
2124 	     const struct grid_cell *);
2125 
2126 /* window.c */
2127 extern struct windows windows;
2128 extern struct window_pane_tree all_window_panes;
2129 int		 window_cmp(struct window *, struct window *);
2130 RB_PROTOTYPE(windows, window, entry, window_cmp);
2131 int		 winlink_cmp(struct winlink *, struct winlink *);
2132 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2133 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2134 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2135 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2136 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2137 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2138 u_int		 winlink_count(struct winlinks *);
2139 struct winlink	*winlink_add(struct winlinks *, int);
2140 void		 winlink_set_window(struct winlink *, struct window *);
2141 void		 winlink_remove(struct winlinks *, struct winlink *);
2142 struct winlink	*winlink_next(struct winlink *);
2143 struct winlink	*winlink_previous(struct winlink *);
2144 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2145 		     int);
2146 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2147 		     int);
2148 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2149 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2150 struct window	*window_find_by_id_str(const char *);
2151 struct window	*window_find_by_id(u_int);
2152 void		 window_update_activity(struct window *);
2153 struct window	*window_create(u_int, u_int);
2154 struct window	*window_create_spawn(const char *, int, char **, const char *,
2155 		     const char *, const char *, struct environ *,
2156 		     struct termios *, u_int, u_int, u_int, char **);
2157 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2158 struct window_pane *window_find_string(struct window *, const char *);
2159 int		 window_has_pane(struct window *, struct window_pane *);
2160 int		 window_set_active_pane(struct window *, struct window_pane *);
2161 void		 window_redraw_active_switch(struct window *,
2162 		     struct window_pane *);
2163 struct window_pane *window_add_pane(struct window *, struct window_pane *, int,
2164 		     int, u_int);
2165 void		 window_resize(struct window *, u_int, u_int);
2166 int		 window_zoom(struct window_pane *);
2167 int		 window_unzoom(struct window *);
2168 void		 window_lost_pane(struct window *, struct window_pane *);
2169 void		 window_remove_pane(struct window *, struct window_pane *);
2170 struct window_pane *window_pane_at_index(struct window *, u_int);
2171 struct window_pane *window_pane_next_by_number(struct window *,
2172 			struct window_pane *, u_int);
2173 struct window_pane *window_pane_previous_by_number(struct window *,
2174 			struct window_pane *, u_int);
2175 int		 window_pane_index(struct window_pane *, u_int *);
2176 u_int		 window_count_panes(struct window *);
2177 void		 window_destroy_panes(struct window *);
2178 struct window_pane *window_pane_find_by_id_str(const char *);
2179 struct window_pane *window_pane_find_by_id(u_int);
2180 int		 window_pane_destroy_ready(struct window_pane *);
2181 int		 window_pane_spawn(struct window_pane *, int, char **,
2182 		     const char *, const char *, const char *, struct environ *,
2183 		     struct termios *, char **);
2184 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2185 void		 window_pane_alternate_on(struct window_pane *,
2186 		     struct grid_cell *, int);
2187 void		 window_pane_alternate_off(struct window_pane *,
2188 		     struct grid_cell *, int);
2189 void		 window_pane_set_palette(struct window_pane *, u_int, int);
2190 void		 window_pane_unset_palette(struct window_pane *, u_int);
2191 void		 window_pane_reset_palette(struct window_pane *);
2192 int		 window_pane_get_palette(const struct window_pane *, int);
2193 int		 window_pane_set_mode(struct window_pane *,
2194 		     const struct window_mode *, struct cmd_find_state *,
2195 		     struct args *);
2196 void		 window_pane_reset_mode(struct window_pane *);
2197 void		 window_pane_key(struct window_pane *, struct client *,
2198 		     struct session *, struct winlink *, key_code,
2199 		     struct mouse_event *);
2200 int		 window_pane_visible(struct window_pane *);
2201 u_int		 window_pane_search(struct window_pane *, const char *);
2202 const char	*window_printable_flags(struct winlink *);
2203 struct window_pane *window_pane_find_up(struct window_pane *);
2204 struct window_pane *window_pane_find_down(struct window_pane *);
2205 struct window_pane *window_pane_find_left(struct window_pane *);
2206 struct window_pane *window_pane_find_right(struct window_pane *);
2207 void		 window_set_name(struct window *, const char *);
2208 void		 window_add_ref(struct window *, const char *);
2209 void		 window_remove_ref(struct window *, const char *);
2210 void		 winlink_clear_flags(struct winlink *);
2211 int		 winlink_shuffle_up(struct session *, struct winlink *);
2212 
2213 /* layout.c */
2214 u_int		 layout_count_cells(struct layout_cell *);
2215 struct layout_cell *layout_create_cell(struct layout_cell *);
2216 void		 layout_free_cell(struct layout_cell *);
2217 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2218 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2219 		     struct layout_cell **);
2220 void		 layout_resize_layout(struct window *, struct layout_cell *,
2221 		     enum layout_type, int, int);
2222 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2223 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2224 		     u_int);
2225 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2226 void		 layout_make_node(struct layout_cell *, enum layout_type);
2227 void		 layout_fix_offsets(struct layout_cell *);
2228 void		 layout_fix_panes(struct window *);
2229 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2230 		     enum layout_type, int);
2231 void		 layout_init(struct window *, struct window_pane *);
2232 void		 layout_free(struct window *);
2233 void		 layout_resize(struct window *, u_int, u_int);
2234 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2235 		     int, int);
2236 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2237 		     u_int);
2238 void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
2239 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2240 		     int, int, int);
2241 void		 layout_close_pane(struct window_pane *);
2242 int		 layout_spread_cell(struct window *, struct layout_cell *);
2243 void		 layout_spread_out(struct window_pane *);
2244 
2245 /* layout-custom.c */
2246 char		*layout_dump(struct layout_cell *);
2247 int		 layout_parse(struct window *, const char *);
2248 
2249 /* layout-set.c */
2250 int		 layout_set_lookup(const char *);
2251 u_int		 layout_set_select(struct window *, u_int);
2252 u_int		 layout_set_next(struct window *);
2253 u_int		 layout_set_previous(struct window *);
2254 
2255 /* mode-tree.c */
2256 typedef void (*mode_tree_build_cb)(void *, u_int, uint64_t *, const char *);
2257 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2258     u_int, u_int);
2259 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2260 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2261 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2262 void	*mode_tree_get_current(struct mode_tree_data *);
2263 void	 mode_tree_expand_current(struct mode_tree_data *);
2264 void	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2265 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2266 	     struct client *, key_code, int);
2267 void	 mode_tree_down(struct mode_tree_data *, int);
2268 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2269 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2270 	     void *, const char **, u_int, struct screen **);
2271 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2272 void	 mode_tree_build(struct mode_tree_data *);
2273 void	 mode_tree_free(struct mode_tree_data *);
2274 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2275 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2276 	     struct mode_tree_item *, void *, uint64_t, const char *,
2277 	     const char *, int);
2278 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2279 void	 mode_tree_draw(struct mode_tree_data *);
2280 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2281 	     struct mouse_event *, u_int *, u_int *);
2282 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2283 	     const char *, const char *);
2284 
2285 /* window-buffer.c */
2286 extern const struct window_mode window_buffer_mode;
2287 
2288 /* window-tree.c */
2289 extern const struct window_mode window_tree_mode;
2290 
2291 /* window-clock.c */
2292 extern const struct window_mode window_clock_mode;
2293 extern const char window_clock_table[14][5][5];
2294 
2295 /* window-client.c */
2296 extern const struct window_mode window_client_mode;
2297 
2298 /* window-copy.c */
2299 extern const struct window_mode window_copy_mode;
2300 void		 window_copy_init_from_pane(struct window_pane *, int);
2301 void		 window_copy_init_for_output(struct window_pane *);
2302 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
2303 void		 window_copy_vadd(struct window_pane *, const char *, va_list);
2304 void		 window_copy_pageup(struct window_pane *, int);
2305 void		 window_copy_start_drag(struct client *, struct mouse_event *);
2306 void		 window_copy_add_formats(struct window_pane *,
2307 		     struct format_tree *);
2308 
2309 /* names.c */
2310 void	 check_window_name(struct window *);
2311 char	*default_window_name(struct window *);
2312 char	*parse_window_name(const char *);
2313 
2314 /* control.c */
2315 void	control_callback(struct client *, int, void *);
2316 void printflike(2, 3) control_write(struct client *, const char *, ...);
2317 void	control_write_buffer(struct client *, struct evbuffer *);
2318 
2319 /* control-notify.c */
2320 void	control_notify_input(struct client *, struct window_pane *,
2321 	    struct evbuffer *);
2322 void	control_notify_pane_mode_changed(int);
2323 void	control_notify_window_layout_changed(struct window *);
2324 void	control_notify_window_pane_changed(struct window *);
2325 void	control_notify_window_unlinked(struct session *, struct window *);
2326 void	control_notify_window_linked(struct session *, struct window *);
2327 void	control_notify_window_renamed(struct window *);
2328 void	control_notify_client_session_changed(struct client *);
2329 void	control_notify_session_renamed(struct session *);
2330 void	control_notify_session_created(struct session *);
2331 void	control_notify_session_closed(struct session *);
2332 void	control_notify_session_window_changed(struct session *);
2333 
2334 /* session.c */
2335 extern struct sessions sessions;
2336 int	session_cmp(struct session *, struct session *);
2337 RB_PROTOTYPE(sessions, session, entry, session_cmp);
2338 int		 session_alive(struct session *);
2339 struct session	*session_find(const char *);
2340 struct session	*session_find_by_id_str(const char *);
2341 struct session	*session_find_by_id(u_int);
2342 struct session	*session_create(const char *, const char *, int, char **,
2343 		     const char *, const char *, struct environ *,
2344 		     struct options *, struct termios *, int, char **);
2345 void		 session_destroy(struct session *, const char *);
2346 void		 session_add_ref(struct session *, const char *);
2347 void		 session_remove_ref(struct session *, const char *);
2348 int		 session_check_name(const char *);
2349 void		 session_update_activity(struct session *, struct timeval *);
2350 struct session	*session_next_session(struct session *);
2351 struct session	*session_previous_session(struct session *);
2352 struct winlink	*session_new(struct session *, const char *, int, char **,
2353 		     const char *, const char *, int, char **);
2354 struct winlink	*session_attach(struct session *, struct window *, int,
2355 		     char **);
2356 int		 session_detach(struct session *, struct winlink *);
2357 int		 session_has(struct session *, struct window *);
2358 int		 session_is_linked(struct session *, struct window *);
2359 int		 session_next(struct session *, int);
2360 int		 session_previous(struct session *, int);
2361 int		 session_select(struct session *, int);
2362 int		 session_last(struct session *);
2363 int		 session_set_current(struct session *, struct winlink *);
2364 struct session_group *session_group_contains(struct session *);
2365 struct session_group *session_group_find(const char *);
2366 struct session_group *session_group_new(const char *);
2367 void		 session_group_add(struct session_group *, struct session *);
2368 void		 session_group_synchronize_to(struct session *);
2369 void		 session_group_synchronize_from(struct session *);
2370 u_int		 session_group_count(struct session_group *);
2371 void		 session_renumber_windows(struct session *);
2372 
2373 /* utf8.c */
2374 void		 utf8_set(struct utf8_data *, u_char);
2375 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
2376 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
2377 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
2378 enum utf8_state	 utf8_combine(const struct utf8_data *, wchar_t *);
2379 enum utf8_state	 utf8_split(wchar_t, struct utf8_data *);
2380 int		 utf8_isvalid(const char *);
2381 int		 utf8_strvis(char *, const char *, size_t, int);
2382 int		 utf8_stravis(char **, const char *, int);
2383 char		*utf8_sanitize(const char *);
2384 size_t		 utf8_strlen(const struct utf8_data *);
2385 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
2386 struct utf8_data *utf8_fromcstr(const char *);
2387 char		*utf8_tocstr(struct utf8_data *);
2388 u_int		 utf8_cstrwidth(const char *);
2389 char		*utf8_rtrimcstr(const char *, u_int);
2390 char		*utf8_trimcstr(const char *, u_int);
2391 char		*utf8_padcstr(const char *, u_int);
2392 
2393 /* procname.c */
2394 char   *get_proc_name(int, char *);
2395 
2396 /* log.c */
2397 void	log_add_level(void);
2398 int	log_get_level(void);
2399 void	log_open(const char *);
2400 void	log_toggle(const char *);
2401 void	log_close(void);
2402 void printflike(1, 2) log_debug(const char *, ...);
2403 __dead void printflike(1, 2) fatal(const char *, ...);
2404 __dead void printflike(1, 2) fatalx(const char *, ...);
2405 
2406 /* style.c */
2407 int		 style_parse(const struct grid_cell *,
2408 		     struct grid_cell *, const char *);
2409 const char	*style_tostring(struct grid_cell *);
2410 void		 style_apply(struct grid_cell *, struct options *,
2411 		     const char *);
2412 void		 style_apply_update(struct grid_cell *, struct options *,
2413 		     const char *);
2414 int		 style_equal(const struct grid_cell *,
2415 		     const struct grid_cell *);
2416 
2417 #endif /* TMUX_H */
2418