xref: /openbsd-src/usr.bin/tmux/tmux.h (revision ddce81d18ead1cead306cecb446175faf94d13e9)
1 /* $OpenBSD: tmux.h,v 1.851 2018/11/22 10:36:40 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 
56 /* Client-server protocol version. */
57 #define PROTOCOL_VERSION 8
58 
59 /* Default global configuration file. */
60 #ifndef TMUX_CONF
61 #define TMUX_CONF "/etc/tmux.conf"
62 #endif
63 
64 /* Minimum layout cell size, NOT including border lines. */
65 #define PANE_MINIMUM 1
66 
67 /* Minimum and maximum window size. */
68 #define WINDOW_MINIMUM PANE_MINIMUM
69 #define WINDOW_MAXIMUM 10000
70 
71 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
72 #define NAME_INTERVAL 500000
73 
74 /* Maximum size of data to hold from a pane. */
75 #define READ_SIZE 4096
76 
77 /* Attribute to make GCC check printf-like arguments. */
78 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
79 
80 /* Number of items in array. */
81 #ifndef nitems
82 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
83 #endif
84 
85 /* Alert option values. */
86 #define ALERT_NONE 0
87 #define ALERT_ANY 1
88 #define ALERT_CURRENT 2
89 #define ALERT_OTHER 3
90 
91 /* Visual option values. */
92 #define VISUAL_OFF 0
93 #define VISUAL_ON 1
94 #define VISUAL_BOTH 2
95 
96 /* Special key codes. */
97 #define KEYC_NONE 0xffff00000000ULL
98 #define KEYC_UNKNOWN 0xfffe00000000ULL
99 #define KEYC_BASE 0x000010000000ULL
100 #define KEYC_USER 0x000020000000ULL
101 
102 /* Available user keys. */
103 #define KEYC_NUSER 1000
104 
105 /* Key modifier bits. */
106 #define KEYC_ESCAPE 0x200000000000ULL
107 #define KEYC_CTRL 0x400000000000ULL
108 #define KEYC_SHIFT 0x800000000000ULL
109 #define KEYC_XTERM 0x1000000000000ULL
110 
111 /* Mask to obtain key w/o modifiers. */
112 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_XTERM)
113 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
114 
115 /* Is this a mouse key? */
116 #define KEYC_IS_MOUSE(key) (((key) & KEYC_MASK_KEY) >= KEYC_MOUSE &&	\
117     ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
118 
119 /* Multiple click timeout. */
120 #define KEYC_CLICK_TIMEOUT 300
121 
122 /* Mouse key codes. */
123 #define KEYC_MOUSE_KEY(name)					\
124 	KEYC_ ## name ## _PANE,					\
125 	KEYC_ ## name ## _STATUS,				\
126 	KEYC_ ## name ## _STATUS_LEFT,				\
127 	KEYC_ ## name ## _STATUS_RIGHT,				\
128 	KEYC_ ## name ## _BORDER
129 #define KEYC_MOUSE_STRING(name, s)				\
130 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
131 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
132 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
133 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
134 	{ #s "Border", KEYC_ ## name ## _BORDER }
135 
136 /*
137  * A single key. This can be ASCII or Unicode or one of the keys starting at
138  * KEYC_BASE.
139  */
140 typedef unsigned long long key_code;
141 
142 /* Special key codes. */
143 enum {
144 	/* Focus events. */
145 	KEYC_FOCUS_IN = KEYC_BASE,
146 	KEYC_FOCUS_OUT,
147 
148 	/* "Any" key, used if not found in key table. */
149 	KEYC_ANY,
150 
151 	/* Paste brackets. */
152 	KEYC_PASTE_START,
153 	KEYC_PASTE_END,
154 
155 	/* Mouse keys. */
156 	KEYC_MOUSE, /* unclassified mouse event */
157 	KEYC_DRAGGING, /* dragging in progress */
158 	KEYC_MOUSE_KEY(MOUSEMOVE),
159 	KEYC_MOUSE_KEY(MOUSEDOWN1),
160 	KEYC_MOUSE_KEY(MOUSEDOWN2),
161 	KEYC_MOUSE_KEY(MOUSEDOWN3),
162 	KEYC_MOUSE_KEY(MOUSEUP1),
163 	KEYC_MOUSE_KEY(MOUSEUP2),
164 	KEYC_MOUSE_KEY(MOUSEUP3),
165 	KEYC_MOUSE_KEY(MOUSEDRAG1),
166 	KEYC_MOUSE_KEY(MOUSEDRAG2),
167 	KEYC_MOUSE_KEY(MOUSEDRAG3),
168 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
169 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
170 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
171 	KEYC_MOUSE_KEY(WHEELUP),
172 	KEYC_MOUSE_KEY(WHEELDOWN),
173 	KEYC_MOUSE_KEY(DOUBLECLICK1),
174 	KEYC_MOUSE_KEY(DOUBLECLICK2),
175 	KEYC_MOUSE_KEY(DOUBLECLICK3),
176 	KEYC_MOUSE_KEY(TRIPLECLICK1),
177 	KEYC_MOUSE_KEY(TRIPLECLICK2),
178 	KEYC_MOUSE_KEY(TRIPLECLICK3),
179 
180 	/* Backspace key. */
181 	KEYC_BSPACE,
182 
183 	/* Function keys. */
184 	KEYC_F1,
185 	KEYC_F2,
186 	KEYC_F3,
187 	KEYC_F4,
188 	KEYC_F5,
189 	KEYC_F6,
190 	KEYC_F7,
191 	KEYC_F8,
192 	KEYC_F9,
193 	KEYC_F10,
194 	KEYC_F11,
195 	KEYC_F12,
196 	KEYC_IC,
197 	KEYC_DC,
198 	KEYC_HOME,
199 	KEYC_END,
200 	KEYC_NPAGE,
201 	KEYC_PPAGE,
202 	KEYC_BTAB,
203 
204 	/* Arrow keys. */
205 	KEYC_UP,
206 	KEYC_DOWN,
207 	KEYC_LEFT,
208 	KEYC_RIGHT,
209 
210 	/* Numeric keypad. */
211 	KEYC_KP_SLASH,
212 	KEYC_KP_STAR,
213 	KEYC_KP_MINUS,
214 	KEYC_KP_SEVEN,
215 	KEYC_KP_EIGHT,
216 	KEYC_KP_NINE,
217 	KEYC_KP_PLUS,
218 	KEYC_KP_FOUR,
219 	KEYC_KP_FIVE,
220 	KEYC_KP_SIX,
221 	KEYC_KP_ONE,
222 	KEYC_KP_TWO,
223 	KEYC_KP_THREE,
224 	KEYC_KP_ENTER,
225 	KEYC_KP_ZERO,
226 	KEYC_KP_PERIOD,
227 };
228 
229 /* Termcap codes. */
230 enum tty_code_code {
231 	TTYC_AX = 0,
232 	TTYC_ACSC,
233 	TTYC_BCE,
234 	TTYC_BEL,
235 	TTYC_BLINK,
236 	TTYC_BOLD,
237 	TTYC_CIVIS,
238 	TTYC_CLEAR,
239 	TTYC_CNORM,
240 	TTYC_COLORS,
241 	TTYC_CR,
242 	TTYC_CS,
243 	TTYC_CSR,
244 	TTYC_CUB,
245 	TTYC_CUB1,
246 	TTYC_CUD,
247 	TTYC_CUD1,
248 	TTYC_CUF,
249 	TTYC_CUF1,
250 	TTYC_CUP,
251 	TTYC_CUU,
252 	TTYC_CUU1,
253 	TTYC_CVVIS,
254 	TTYC_DCH,
255 	TTYC_DCH1,
256 	TTYC_DIM,
257 	TTYC_DL,
258 	TTYC_DL1,
259 	TTYC_E3,
260 	TTYC_ECH,
261 	TTYC_ED,
262 	TTYC_EL,
263 	TTYC_EL1,
264 	TTYC_ENACS,
265 	TTYC_FSL,
266 	TTYC_HOME,
267 	TTYC_HPA,
268 	TTYC_ICH,
269 	TTYC_ICH1,
270 	TTYC_IL,
271 	TTYC_IL1,
272 	TTYC_INDN,
273 	TTYC_INVIS,
274 	TTYC_KCBT,
275 	TTYC_KCUB1,
276 	TTYC_KCUD1,
277 	TTYC_KCUF1,
278 	TTYC_KCUU1,
279 	TTYC_KDC2,
280 	TTYC_KDC3,
281 	TTYC_KDC4,
282 	TTYC_KDC5,
283 	TTYC_KDC6,
284 	TTYC_KDC7,
285 	TTYC_KDCH1,
286 	TTYC_KDN2,
287 	TTYC_KDN3,
288 	TTYC_KDN4,
289 	TTYC_KDN5,
290 	TTYC_KDN6,
291 	TTYC_KDN7,
292 	TTYC_KEND,
293 	TTYC_KEND2,
294 	TTYC_KEND3,
295 	TTYC_KEND4,
296 	TTYC_KEND5,
297 	TTYC_KEND6,
298 	TTYC_KEND7,
299 	TTYC_KF1,
300 	TTYC_KF10,
301 	TTYC_KF11,
302 	TTYC_KF12,
303 	TTYC_KF13,
304 	TTYC_KF14,
305 	TTYC_KF15,
306 	TTYC_KF16,
307 	TTYC_KF17,
308 	TTYC_KF18,
309 	TTYC_KF19,
310 	TTYC_KF2,
311 	TTYC_KF20,
312 	TTYC_KF21,
313 	TTYC_KF22,
314 	TTYC_KF23,
315 	TTYC_KF24,
316 	TTYC_KF25,
317 	TTYC_KF26,
318 	TTYC_KF27,
319 	TTYC_KF28,
320 	TTYC_KF29,
321 	TTYC_KF3,
322 	TTYC_KF30,
323 	TTYC_KF31,
324 	TTYC_KF32,
325 	TTYC_KF33,
326 	TTYC_KF34,
327 	TTYC_KF35,
328 	TTYC_KF36,
329 	TTYC_KF37,
330 	TTYC_KF38,
331 	TTYC_KF39,
332 	TTYC_KF4,
333 	TTYC_KF40,
334 	TTYC_KF41,
335 	TTYC_KF42,
336 	TTYC_KF43,
337 	TTYC_KF44,
338 	TTYC_KF45,
339 	TTYC_KF46,
340 	TTYC_KF47,
341 	TTYC_KF48,
342 	TTYC_KF49,
343 	TTYC_KF5,
344 	TTYC_KF50,
345 	TTYC_KF51,
346 	TTYC_KF52,
347 	TTYC_KF53,
348 	TTYC_KF54,
349 	TTYC_KF55,
350 	TTYC_KF56,
351 	TTYC_KF57,
352 	TTYC_KF58,
353 	TTYC_KF59,
354 	TTYC_KF6,
355 	TTYC_KF60,
356 	TTYC_KF61,
357 	TTYC_KF62,
358 	TTYC_KF63,
359 	TTYC_KF7,
360 	TTYC_KF8,
361 	TTYC_KF9,
362 	TTYC_KHOM2,
363 	TTYC_KHOM3,
364 	TTYC_KHOM4,
365 	TTYC_KHOM5,
366 	TTYC_KHOM6,
367 	TTYC_KHOM7,
368 	TTYC_KHOME,
369 	TTYC_KIC2,
370 	TTYC_KIC3,
371 	TTYC_KIC4,
372 	TTYC_KIC5,
373 	TTYC_KIC6,
374 	TTYC_KIC7,
375 	TTYC_KICH1,
376 	TTYC_KIND,
377 	TTYC_KLFT2,
378 	TTYC_KLFT3,
379 	TTYC_KLFT4,
380 	TTYC_KLFT5,
381 	TTYC_KLFT6,
382 	TTYC_KLFT7,
383 	TTYC_KMOUS,
384 	TTYC_KNP,
385 	TTYC_KNXT2,
386 	TTYC_KNXT3,
387 	TTYC_KNXT4,
388 	TTYC_KNXT5,
389 	TTYC_KNXT6,
390 	TTYC_KNXT7,
391 	TTYC_KPP,
392 	TTYC_KPRV2,
393 	TTYC_KPRV3,
394 	TTYC_KPRV4,
395 	TTYC_KPRV5,
396 	TTYC_KPRV6,
397 	TTYC_KPRV7,
398 	TTYC_KRI,
399 	TTYC_KRIT2,
400 	TTYC_KRIT3,
401 	TTYC_KRIT4,
402 	TTYC_KRIT5,
403 	TTYC_KRIT6,
404 	TTYC_KRIT7,
405 	TTYC_KUP2,
406 	TTYC_KUP3,
407 	TTYC_KUP4,
408 	TTYC_KUP5,
409 	TTYC_KUP6,
410 	TTYC_KUP7,
411 	TTYC_MS,
412 	TTYC_OP,
413 	TTYC_REV,
414 	TTYC_RGB,
415 	TTYC_RI,
416 	TTYC_RMACS,
417 	TTYC_RMCUP,
418 	TTYC_RMKX,
419 	TTYC_SE,
420 	TTYC_SETAB,
421 	TTYC_SETAF,
422 	TTYC_SETRGBB,
423 	TTYC_SETRGBF,
424 	TTYC_SGR0,
425 	TTYC_SITM,
426 	TTYC_SMACS,
427 	TTYC_SMCUP,
428 	TTYC_SMKX,
429 	TTYC_SMSO,
430 	TTYC_SMULX,
431 	TTYC_SMUL,
432 	TTYC_SMXX,
433 	TTYC_SS,
434 	TTYC_TC,
435 	TTYC_TSL,
436 	TTYC_U8,
437 	TTYC_VPA,
438 	TTYC_XENL,
439 	TTYC_XT,
440 };
441 
442 /* Message codes. */
443 enum msgtype {
444 	MSG_VERSION = 12,
445 
446 	MSG_IDENTIFY_FLAGS = 100,
447 	MSG_IDENTIFY_TERM,
448 	MSG_IDENTIFY_TTYNAME,
449 	MSG_IDENTIFY_OLDCWD, /* unused */
450 	MSG_IDENTIFY_STDIN,
451 	MSG_IDENTIFY_ENVIRON,
452 	MSG_IDENTIFY_DONE,
453 	MSG_IDENTIFY_CLIENTPID,
454 	MSG_IDENTIFY_CWD,
455 
456 	MSG_COMMAND = 200,
457 	MSG_DETACH,
458 	MSG_DETACHKILL,
459 	MSG_EXIT,
460 	MSG_EXITED,
461 	MSG_EXITING,
462 	MSG_LOCK,
463 	MSG_READY,
464 	MSG_RESIZE,
465 	MSG_SHELL,
466 	MSG_SHUTDOWN,
467 	MSG_STDERR,
468 	MSG_STDIN,
469 	MSG_STDOUT,
470 	MSG_SUSPEND,
471 	MSG_UNLOCK,
472 	MSG_WAKEUP,
473 	MSG_EXEC,
474 };
475 
476 /*
477  * Message data.
478  *
479  * Don't forget to bump PROTOCOL_VERSION if any of these change!
480  */
481 struct msg_command_data {
482 	int	argc;
483 }; /* followed by packed argv */
484 
485 struct msg_stdin_data {
486 	ssize_t	size;
487 	char	data[BUFSIZ];
488 };
489 
490 struct msg_stdout_data {
491 	ssize_t	size;
492 	char	data[BUFSIZ];
493 };
494 
495 struct msg_stderr_data {
496 	ssize_t	size;
497 	char	data[BUFSIZ];
498 };
499 
500 /* Mode keys. */
501 #define MODEKEY_EMACS 0
502 #define MODEKEY_VI 1
503 
504 /* Modes. */
505 #define MODE_CURSOR 0x1
506 #define MODE_INSERT 0x2
507 #define MODE_KCURSOR 0x4
508 #define MODE_KKEYPAD 0x8	/* set = application, clear = number */
509 #define MODE_WRAP 0x10		/* whether lines wrap */
510 #define MODE_MOUSE_STANDARD 0x20
511 #define MODE_MOUSE_BUTTON 0x40
512 #define MODE_BLINKING 0x80
513 #define MODE_MOUSE_UTF8 0x100
514 #define MODE_MOUSE_SGR 0x200
515 #define MODE_BRACKETPASTE 0x400
516 #define MODE_FOCUSON 0x800
517 #define MODE_MOUSE_ALL 0x1000
518 
519 #define ALL_MODES 0xffffff
520 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
521 
522 /*
523  * A single UTF-8 character. UTF8_SIZE must be big enough to hold
524  * combining characters as well, currently at most five (of three
525  * bytes) are supported.
526 */
527 #define UTF8_SIZE 18
528 struct utf8_data {
529 	u_char	data[UTF8_SIZE];
530 
531 	u_char	have;
532 	u_char	size;
533 
534 	u_char	width;	/* 0xff if invalid */
535 } __packed;
536 enum utf8_state {
537 	UTF8_MORE,
538 	UTF8_DONE,
539 	UTF8_ERROR
540 };
541 
542 /* Colour flags. */
543 #define COLOUR_FLAG_256 0x01000000
544 #define COLOUR_FLAG_RGB 0x02000000
545 
546 /* Special colours. */
547 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
548 
549 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
550 #define GRID_ATTR_BRIGHT 0x1
551 #define GRID_ATTR_DIM 0x2
552 #define GRID_ATTR_UNDERSCORE 0x4
553 #define GRID_ATTR_BLINK 0x8
554 #define GRID_ATTR_REVERSE 0x10
555 #define GRID_ATTR_HIDDEN 0x20
556 #define GRID_ATTR_ITALICS 0x40
557 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
558 #define GRID_ATTR_STRIKETHROUGH 0x100
559 #define GRID_ATTR_UNDERSCORE_2 0x200
560 #define GRID_ATTR_UNDERSCORE_3 0x400
561 #define GRID_ATTR_UNDERSCORE_4 0x800
562 #define GRID_ATTR_UNDERSCORE_5 0x1000
563 
564 /* All underscore attributes. */
565 #define GRID_ATTR_ALL_UNDERSCORE \
566 	(GRID_ATTR_UNDERSCORE|	 \
567 	 GRID_ATTR_UNDERSCORE_2| \
568 	 GRID_ATTR_UNDERSCORE_3| \
569 	 GRID_ATTR_UNDERSCORE_4| \
570 	 GRID_ATTR_UNDERSCORE_5)
571 
572 /* Grid flags. */
573 #define GRID_FLAG_FG256 0x1
574 #define GRID_FLAG_BG256 0x2
575 #define GRID_FLAG_PADDING 0x4
576 #define GRID_FLAG_EXTENDED 0x8
577 #define GRID_FLAG_SELECTED 0x10
578 #define GRID_FLAG_NOPALETTE 0x20
579 
580 /* Grid line flags. */
581 #define GRID_LINE_WRAPPED 0x1
582 #define GRID_LINE_EXTENDED 0x2
583 #define GRID_LINE_DEAD 0x4
584 
585 /* Grid cell data. */
586 struct grid_cell {
587 	u_char			flags;
588 	u_short			attr;
589 	int			fg;
590 	int			bg;
591 	struct utf8_data	data;
592 };
593 struct grid_cell_entry {
594 	u_char			flags;
595 	union {
596 		u_int		offset;
597 		struct {
598 			u_char	attr;
599 			u_char	fg;
600 			u_char	bg;
601 			u_char	data;
602 		} data;
603 	};
604 } __packed;
605 
606 /* Grid line. */
607 struct grid_line {
608 	u_int			 cellused;
609 	u_int			 cellsize;
610 	struct grid_cell_entry	*celldata;
611 
612 	u_int			 extdsize;
613 	struct grid_cell	*extddata;
614 
615 	int			 flags;
616 } __packed;
617 
618 /* Entire grid of cells. */
619 struct grid {
620 	int			 flags;
621 #define GRID_HISTORY 0x1 /* scroll lines into history */
622 
623 	u_int			 sx;
624 	u_int			 sy;
625 
626 	u_int			 hscrolled;
627 	u_int			 hsize;
628 	u_int			 hlimit;
629 
630 	struct grid_line	*linedata;
631 };
632 
633 /* Hook data structures. */
634 struct hook {
635 	const char	*name;
636 
637 	struct cmd_list	*cmdlist;
638 
639 	RB_ENTRY(hook)	 entry;
640 };
641 
642 /* Virtual screen. */
643 struct screen_sel;
644 struct screen_titles;
645 struct screen {
646 	char			*title;
647 	struct screen_titles	*titles;
648 
649 	struct grid		*grid;		/* grid data */
650 
651 	u_int			 cx;		/* cursor x */
652 	u_int			 cy;		/* cursor y */
653 
654 	u_int			 cstyle;	/* cursor style */
655 	char			*ccolour;	/* cursor colour string */
656 
657 	u_int			 rupper;	/* scroll region top */
658 	u_int			 rlower;	/* scroll region bottom */
659 
660 	int			 mode;
661 
662 	bitstr_t		*tabs;
663 
664 	struct screen_sel	*sel;
665 };
666 
667 /* Screen write context. */
668 struct screen_write_collect_item;
669 struct screen_write_collect_line;
670 struct screen_write_ctx {
671 	struct window_pane	*wp;
672 	struct screen		*s;
673 
674 	struct screen_write_collect_item *item;
675 	struct screen_write_collect_line *list;
676 	u_int			 scrolled;
677 	u_int			 bg;
678 
679 	u_int			 cells;
680 	u_int			 written;
681 	u_int			 skipped;
682 };
683 
684 /* Screen size. */
685 #define screen_size_x(s) ((s)->grid->sx)
686 #define screen_size_y(s) ((s)->grid->sy)
687 #define screen_hsize(s) ((s)->grid->hsize)
688 #define screen_hlimit(s) ((s)->grid->hlimit)
689 
690 /*
691  * Window mode. Windows can be in several modes and this is used to call the
692  * right function to handle input and output.
693  */
694 struct window_mode {
695 	const char	*name;
696 
697 	struct screen	*(*init)(struct window_pane *, struct cmd_find_state *,
698 			     struct args *);
699 	void		 (*free)(struct window_pane *);
700 	void		 (*resize)(struct window_pane *, u_int, u_int);
701 	void		 (*key)(struct window_pane *, struct client *,
702 			     struct session *, key_code, struct mouse_event *);
703 
704 	const char	*(*key_table)(struct window_pane *);
705 	void		 (*command)(struct window_pane *, struct client *,
706 			     struct session *, struct args *,
707 			     struct mouse_event *);
708 };
709 #define WINDOW_MODE_TIMEOUT 180
710 
711 /* Child window structure. */
712 struct window_pane {
713 	u_int		 id;
714 	u_int		 active_point;
715 
716 	struct window	*window;
717 
718 	struct layout_cell *layout_cell;
719 	struct layout_cell *saved_layout_cell;
720 
721 	u_int		 sx;
722 	u_int		 sy;
723 
724 	u_int		 osx;
725 	u_int		 osy;
726 
727 	u_int		 xoff;
728 	u_int		 yoff;
729 
730 	int		 flags;
731 #define PANE_REDRAW 0x1
732 #define PANE_DROP 0x2
733 #define PANE_FOCUSED 0x4
734 #define PANE_RESIZE 0x8
735 #define PANE_RESIZEFORCE 0x10
736 #define PANE_FOCUSPUSH 0x20
737 #define PANE_INPUTOFF 0x40
738 #define PANE_CHANGED 0x80
739 #define PANE_EXITED 0x100
740 #define PANE_STATUSREADY 0x200
741 #define PANE_STATUSDRAWN 0x400
742 
743 	int		 argc;
744 	char	       **argv;
745 	char		*shell;
746 	const char	*cwd;
747 
748 	pid_t		 pid;
749 	char		 tty[TTY_NAME_MAX];
750 	int		 status;
751 
752 	int		 fd;
753 	struct bufferevent *event;
754 
755 	struct event	 resize_timer;
756 
757 	struct input_ctx *ictx;
758 
759 	struct grid_cell colgc;
760 
761 	int		*palette;
762 
763 	int		 pipe_fd;
764 	struct bufferevent *pipe_event;
765 	size_t		 pipe_off;
766 
767 	struct screen	*screen;
768 	struct screen	 base;
769 
770 	struct screen	 status_screen;
771 	size_t		 status_size;
772 
773 	/* Saved in alternative screen mode. */
774 	u_int		 saved_cx;
775 	u_int		 saved_cy;
776 	struct grid	*saved_grid;
777 	struct grid_cell saved_cell;
778 
779 	const struct window_mode *mode;
780 	void		*modedata;
781 	struct event	 modetimer;
782 	time_t		 modelast;
783 	u_int		 modeprefix;
784 	char		*searchstr;
785 
786 	TAILQ_ENTRY(window_pane) entry;
787 	RB_ENTRY(window_pane) tree_entry;
788 };
789 TAILQ_HEAD(window_panes, window_pane);
790 RB_HEAD(window_pane_tree, window_pane);
791 
792 /* Window structure. */
793 struct window {
794 	u_int		 id;
795 
796 	char		*name;
797 	struct event	 name_event;
798 	struct timeval	 name_time;
799 
800 	struct event	 alerts_timer;
801 	struct event	 offset_timer;
802 
803 	struct timeval	 activity_time;
804 
805 	struct window_pane *active;
806 	struct window_pane *last;
807 	struct window_panes panes;
808 
809 	int		 lastlayout;
810 	struct layout_cell *layout_root;
811 	struct layout_cell *saved_layout_root;
812 	char		*old_layout;
813 
814 	u_int		 sx;
815 	u_int		 sy;
816 
817 	int		 flags;
818 #define WINDOW_BELL 0x1
819 #define WINDOW_ACTIVITY 0x2
820 #define WINDOW_SILENCE 0x4
821 #define WINDOW_ZOOMED 0x8
822 #define WINDOW_STYLECHANGED 0x10
823 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
824 
825 	int		 alerts_queued;
826 	TAILQ_ENTRY(window) alerts_entry;
827 
828 	struct options	*options;
829 
830 	struct grid_cell style;
831 	struct grid_cell active_style;
832 
833 	u_int		 references;
834 	TAILQ_HEAD(, winlink) winlinks;
835 
836 	RB_ENTRY(window) entry;
837 };
838 RB_HEAD(windows, window);
839 
840 /* Entry on local window list. */
841 struct winlink {
842 	int		 idx;
843 	struct session	*session;
844 	struct window	*window;
845 
846 	size_t		 status_width;
847 	struct grid_cell status_cell;
848 	char		*status_text;
849 
850 	int		 flags;
851 #define WINLINK_BELL 0x1
852 #define WINLINK_ACTIVITY 0x2
853 #define WINLINK_SILENCE 0x4
854 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
855 
856 	RB_ENTRY(winlink) entry;
857 	TAILQ_ENTRY(winlink) wentry;
858 	TAILQ_ENTRY(winlink) sentry;
859 };
860 RB_HEAD(winlinks, winlink);
861 TAILQ_HEAD(winlink_stack, winlink);
862 
863 /* Window size option. */
864 #define WINDOW_SIZE_LARGEST 0
865 #define WINDOW_SIZE_SMALLEST 1
866 #define WINDOW_SIZE_MANUAL 2
867 
868 /* Layout direction. */
869 enum layout_type {
870 	LAYOUT_LEFTRIGHT,
871 	LAYOUT_TOPBOTTOM,
872 	LAYOUT_WINDOWPANE
873 };
874 
875 /* Layout cells queue. */
876 TAILQ_HEAD(layout_cells, layout_cell);
877 
878 /* Layout cell. */
879 struct layout_cell {
880 	enum layout_type type;
881 
882 	struct layout_cell *parent;
883 
884 	u_int		 sx;
885 	u_int		 sy;
886 
887 	u_int		 xoff;
888 	u_int		 yoff;
889 
890 	struct window_pane *wp;
891 	struct layout_cells cells;
892 
893 	TAILQ_ENTRY(layout_cell) entry;
894 };
895 
896 /* Environment variable. */
897 struct environ_entry {
898 	char		*name;
899 	char		*value;
900 
901 	RB_ENTRY(environ_entry) entry;
902 };
903 
904 /* Client session. */
905 struct session_group {
906 	const char		*name;
907 	TAILQ_HEAD(, session)	 sessions;
908 
909 	RB_ENTRY(session_group)	 entry;
910 };
911 RB_HEAD(session_groups, session_group);
912 
913 struct session {
914 	u_int		 id;
915 
916 	char		*name;
917 	const char	*cwd;
918 
919 	struct timeval	 creation_time;
920 	struct timeval	 last_attached_time;
921 	struct timeval	 activity_time;
922 	struct timeval	 last_activity_time;
923 
924 	struct event	 lock_timer;
925 
926 	struct winlink	*curw;
927 	struct winlink_stack lastw;
928 	struct winlinks	 windows;
929 
930 	int		 statusat;
931 
932 	struct hooks	*hooks;
933 	struct options	*options;
934 
935 #define SESSION_PASTING 0x1
936 #define SESSION_ALERTED 0x2
937 	int		 flags;
938 
939 	u_int		 attached;
940 
941 	struct termios	*tio;
942 
943 	struct environ	*environ;
944 
945 	int		 references;
946 
947 	TAILQ_ENTRY(session) gentry;
948 	RB_ENTRY(session)    entry;
949 };
950 RB_HEAD(sessions, session);
951 
952 /* Mouse button masks. */
953 #define MOUSE_MASK_BUTTONS 3
954 #define MOUSE_MASK_SHIFT 4
955 #define MOUSE_MASK_META 8
956 #define MOUSE_MASK_CTRL 16
957 #define MOUSE_MASK_DRAG 32
958 #define MOUSE_MASK_WHEEL 64
959 
960 /* Mouse wheel states. */
961 #define MOUSE_WHEEL_UP 0
962 #define MOUSE_WHEEL_DOWN 1
963 
964 /* Mouse helpers. */
965 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
966 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
967 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
968 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
969 
970 /* Mouse input. */
971 struct mouse_event {
972 	int		valid;
973 
974 	key_code	key;
975 	int		statusat;
976 
977 	u_int		x;
978 	u_int		y;
979 	u_int		b;
980 
981 	u_int		lx;
982 	u_int		ly;
983 	u_int		lb;
984 
985 	u_int		ox;
986 	u_int		oy;
987 
988 	int		s;
989 	int		w;
990 	int		wp;
991 
992 	u_int		sgr_type;
993 	u_int		sgr_b;
994 };
995 
996 /* TTY information. */
997 struct tty_key {
998 	char		 ch;
999 	key_code	 key;
1000 
1001 	struct tty_key	*left;
1002 	struct tty_key	*right;
1003 
1004 	struct tty_key	*next;
1005 };
1006 
1007 struct tty_code;
1008 struct tty_term {
1009 	char		*name;
1010 	u_int		 references;
1011 
1012 	char		 acs[UCHAR_MAX + 1][2];
1013 
1014 	struct tty_code	*codes;
1015 
1016 #define TERM_256COLOURS 0x1
1017 #define TERM_EARLYWRAP 0x2
1018 	int		 flags;
1019 
1020 	LIST_ENTRY(tty_term) entry;
1021 };
1022 LIST_HEAD(tty_terms, tty_term);
1023 
1024 struct tty {
1025 	struct client	*client;
1026 
1027 	u_int		 sx;
1028 	u_int		 sy;
1029 
1030 	u_int		 cx;
1031 	u_int		 cy;
1032 	u_int		 cstyle;
1033 	char		*ccolour;
1034 
1035 	int		 oflag;
1036 	u_int		 oox;
1037 	u_int		 ooy;
1038 	u_int		 osx;
1039 	u_int		 osy;
1040 
1041 	int		 mode;
1042 
1043 	u_int		 rlower;
1044 	u_int		 rupper;
1045 
1046 	u_int		 rleft;
1047 	u_int		 rright;
1048 
1049 	int		 fd;
1050 	struct event	 event_in;
1051 	struct evbuffer	*in;
1052 	struct event	 event_out;
1053 	struct evbuffer	*out;
1054 	struct event	 timer;
1055 	size_t		 discarded;
1056 
1057 	struct termios	 tio;
1058 
1059 	struct grid_cell cell;
1060 
1061 	int		 last_wp;
1062 	struct grid_cell last_cell;
1063 
1064 #define TTY_NOCURSOR 0x1
1065 #define TTY_FREEZE 0x2
1066 #define TTY_TIMER 0x4
1067 #define TTY_UTF8 0x8
1068 #define TTY_STARTED 0x10
1069 #define TTY_OPENED 0x20
1070 #define TTY_FOCUS 0x40
1071 #define TTY_BLOCK 0x80
1072 	int		 flags;
1073 
1074 	struct tty_term	*term;
1075 	char		*term_name;
1076 	int		 term_flags;
1077 	enum {
1078 		TTY_VT100,
1079 		TTY_VT101,
1080 		TTY_VT102,
1081 		TTY_VT220,
1082 		TTY_VT320,
1083 		TTY_VT420,
1084 		TTY_UNKNOWN
1085 	} term_type;
1086 
1087 	struct mouse_event mouse;
1088 	int		 mouse_drag_flag;
1089 	void		(*mouse_drag_update)(struct client *,
1090 			    struct mouse_event *);
1091 	void		(*mouse_drag_release)(struct client *,
1092 			    struct mouse_event *);
1093 
1094 	struct event	 key_timer;
1095 	struct tty_key	*key_tree;
1096 };
1097 #define TTY_TYPES \
1098 	{ "VT100", "VT101", "VT102", "VT220", "VT320", "VT420", "Unknown" }
1099 
1100 /* TTY command context. */
1101 struct tty_ctx {
1102 	struct window_pane	*wp;
1103 
1104 	const struct grid_cell	*cell;
1105 	int			 wrapped;
1106 
1107 	u_int		 num;
1108 	void		*ptr;
1109 
1110 	/*
1111 	 * Cursor and region position before the screen was updated - this is
1112 	 * where the command should be applied; the values in the screen have
1113 	 * already been updated.
1114 	 */
1115 	u_int		 ocx;
1116 	u_int		 ocy;
1117 
1118 	u_int		 orupper;
1119 	u_int		 orlower;
1120 
1121 	/* Pane offset. */
1122 	u_int		 xoff;
1123 	u_int		 yoff;
1124 
1125 	/* The background colour used for clearing (erasing). */
1126 	u_int		 bg;
1127 
1128 	/* Window offset and size. */
1129 	int		 bigger;
1130 	u_int		 ox;
1131 	u_int		 oy;
1132 	u_int		 sx;
1133 	u_int		 sy;
1134 };
1135 
1136 /* Saved message entry. */
1137 struct message_entry {
1138 	char	*msg;
1139 	u_int	 msg_num;
1140 	time_t	 msg_time;
1141 	TAILQ_ENTRY(message_entry) entry;
1142 };
1143 
1144 /* Parsed arguments structures. */
1145 struct args_entry;
1146 RB_HEAD(args_tree, args_entry);
1147 struct args {
1148 	struct args_tree	  tree;
1149 	int			  argc;
1150 	char			**argv;
1151 };
1152 
1153 /* Command find structures. */
1154 enum cmd_find_type {
1155 	CMD_FIND_PANE,
1156 	CMD_FIND_WINDOW,
1157 	CMD_FIND_SESSION,
1158 };
1159 struct cmd_find_state {
1160 	int			 flags;
1161 	struct cmd_find_state	*current;
1162 
1163 	struct session		*s;
1164 	struct winlink		*wl;
1165 	struct window		*w;
1166 	struct window_pane	*wp;
1167 	int			 idx;
1168 };
1169 
1170 /* Command find flags. */
1171 #define CMD_FIND_PREFER_UNATTACHED 0x1
1172 #define CMD_FIND_QUIET 0x2
1173 #define CMD_FIND_WINDOW_INDEX 0x4
1174 #define CMD_FIND_DEFAULT_MARKED 0x8
1175 #define CMD_FIND_EXACT_SESSION 0x10
1176 #define CMD_FIND_EXACT_WINDOW 0x20
1177 #define CMD_FIND_CANFAIL 0x40
1178 
1179 /* Command and list of commands. */
1180 struct cmd {
1181 	const struct cmd_entry	*entry;
1182 	struct args		*args;
1183 
1184 	char			*file;
1185 	u_int			 line;
1186 
1187 #define CMD_CONTROL 0x1
1188 	int			 flags;
1189 
1190 	TAILQ_ENTRY(cmd)	 qentry;
1191 };
1192 
1193 struct cmd_list {
1194 	int			 references;
1195 	TAILQ_HEAD(, cmd)	 list;
1196 };
1197 
1198 /* Command return values. */
1199 enum cmd_retval {
1200 	CMD_RETURN_ERROR = -1,
1201 	CMD_RETURN_NORMAL = 0,
1202 	CMD_RETURN_WAIT,
1203 	CMD_RETURN_STOP
1204 };
1205 
1206 /* Command queue item type. */
1207 enum cmdq_type {
1208 	CMDQ_COMMAND,
1209 	CMDQ_CALLBACK,
1210 };
1211 
1212 /* Command queue item shared state. */
1213 struct cmdq_shared {
1214 	int			 references;
1215 
1216 	int			 flags;
1217 #define CMDQ_SHARED_REPEAT 0x1
1218 
1219 	struct format_tree	*formats;
1220 
1221 	struct mouse_event	 mouse;
1222 	struct cmd_find_state	 current;
1223 };
1224 
1225 /* Command queue item. */
1226 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1227 struct cmdq_item {
1228 	const char		*name;
1229 	struct cmdq_list	*queue;
1230 	struct cmdq_item	*next;
1231 
1232 	struct client		*client;
1233 
1234 	enum cmdq_type		 type;
1235 	u_int			 group;
1236 
1237 	u_int			 number;
1238 	time_t			 time;
1239 
1240 	int			 flags;
1241 #define CMDQ_FIRED 0x1
1242 #define CMDQ_WAITING 0x2
1243 #define CMDQ_NOHOOKS 0x4
1244 
1245 	struct cmdq_shared	*shared;
1246 	struct cmd_find_state	 source;
1247 	struct cmd_find_state	 target;
1248 
1249 	struct cmd_list		*cmdlist;
1250 	struct cmd		*cmd;
1251 
1252 	cmdq_cb			 cb;
1253 	void			*data;
1254 
1255 	TAILQ_ENTRY(cmdq_item)	 entry;
1256 };
1257 TAILQ_HEAD(cmdq_list, cmdq_item);
1258 
1259 /* Command definition flag. */
1260 struct cmd_entry_flag {
1261 	char			 flag;
1262 	enum cmd_find_type	 type;
1263 	int			 flags;
1264 };
1265 
1266 /* Command definition. */
1267 struct cmd_entry {
1268 	const char		*name;
1269 	const char		*alias;
1270 
1271 	struct {
1272 		const char	*template;
1273 		int		 lower;
1274 		int		 upper;
1275 	} args;
1276 	const char		*usage;
1277 
1278 	struct cmd_entry_flag	 source;
1279 	struct cmd_entry_flag	 target;
1280 
1281 #define CMD_STARTSERVER 0x1
1282 #define CMD_READONLY 0x2
1283 #define CMD_AFTERHOOK 0x4
1284 	int		 flags;
1285 
1286 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1287 };
1288 
1289 /* Status line. */
1290 struct status_line {
1291 	struct event	 timer;
1292 
1293 	struct screen	 status;
1294 	struct screen	*old_status;
1295 
1296 	int		 window_list_offset;
1297 
1298 	u_int            left_size;
1299 	u_int            right_size;
1300 };
1301 
1302 /* Client connection. */
1303 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1304 typedef void (*prompt_free_cb)(void *);
1305 struct client {
1306 	const char	*name;
1307 	struct tmuxpeer	*peer;
1308 	struct cmdq_list queue;
1309 
1310 	pid_t		 pid;
1311 	int		 fd;
1312 	struct event	 event;
1313 	int		 retval;
1314 
1315 	struct timeval	 creation_time;
1316 	struct timeval	 activity_time;
1317 
1318 	struct environ	*environ;
1319 	struct format_job_tree	*jobs;
1320 
1321 	char		*title;
1322 	const char	*cwd;
1323 
1324 	char		*term;
1325 	char		*ttyname;
1326 	struct tty	 tty;
1327 
1328 	size_t		 written;
1329 	size_t		 discarded;
1330 	size_t		 redraw;
1331 
1332 	void		(*stdin_callback)(struct client *, int, void *);
1333 	void		*stdin_callback_data;
1334 	struct evbuffer	*stdin_data;
1335 	int		 stdin_closed;
1336 	struct evbuffer	*stdout_data;
1337 	struct evbuffer	*stderr_data;
1338 
1339 	struct event	 repeat_timer;
1340 
1341 	struct event	 click_timer;
1342 	u_int		 click_button;
1343 
1344 	struct status_line status;
1345 
1346 #define CLIENT_TERMINAL 0x1
1347 #define CLIENT_LOGIN 0x2
1348 #define CLIENT_EXIT 0x4
1349 #define CLIENT_REDRAWWINDOW 0x8
1350 #define CLIENT_REDRAWSTATUS 0x10
1351 #define CLIENT_REPEAT 0x20
1352 #define CLIENT_SUSPENDED 0x40
1353 #define CLIENT_ATTACHED 0x80
1354 #define CLIENT_IDENTIFY 0x100
1355 #define CLIENT_DEAD 0x200
1356 #define CLIENT_REDRAWBORDERS 0x400
1357 #define CLIENT_READONLY 0x800
1358 #define CLIENT_DETACHING 0x1000
1359 #define CLIENT_CONTROL 0x2000
1360 #define CLIENT_CONTROLCONTROL 0x4000
1361 #define CLIENT_FOCUSED 0x8000
1362 #define CLIENT_UTF8 0x10000
1363 #define CLIENT_256COLOURS 0x20000
1364 #define CLIENT_IDENTIFIED 0x40000
1365 #define CLIENT_STATUSFORCE 0x80000
1366 #define CLIENT_DOUBLECLICK 0x100000
1367 #define CLIENT_TRIPLECLICK 0x200000
1368 #define CLIENT_SIZECHANGED 0x400000
1369 #define CLIENT_STATUSOFF 0x800000
1370 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1371 #define CLIENT_ALLREDRAWFLAGS		\
1372 	(CLIENT_REDRAWWINDOW|		\
1373 	 CLIENT_REDRAWSTATUS|		\
1374 	 CLIENT_REDRAWSTATUSALWAYS|	\
1375 	 CLIENT_REDRAWBORDERS)
1376 #define CLIENT_NOSIZEFLAGS	\
1377 	(CLIENT_EXIT|		\
1378 	 CLIENT_DEAD|		\
1379 	 CLIENT_SUSPENDED|	\
1380 	 CLIENT_DETACHING)
1381 	int		 flags;
1382 	struct key_table *keytable;
1383 
1384 	struct event	 identify_timer;
1385 	void		(*identify_callback)(struct client *,
1386 			     struct window_pane *);
1387 	void		*identify_callback_data;
1388 	struct cmdq_item *identify_callback_item;
1389 
1390 	char		*message_string;
1391 	struct event	 message_timer;
1392 	u_int		 message_next;
1393 	TAILQ_HEAD(, message_entry) message_log;
1394 
1395 	char		*prompt_string;
1396 	struct utf8_data *prompt_buffer;
1397 	size_t		 prompt_index;
1398 	prompt_input_cb	 prompt_inputcb;
1399 	prompt_free_cb	 prompt_freecb;
1400 	void		*prompt_data;
1401 	u_int		 prompt_hindex;
1402 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1403 	struct utf8_data *prompt_saved;
1404 
1405 #define PROMPT_SINGLE 0x1
1406 #define PROMPT_NUMERIC 0x2
1407 #define PROMPT_INCREMENTAL 0x4
1408 #define PROMPT_NOFORMAT 0x8
1409 	int		 prompt_flags;
1410 
1411 	struct session	*session;
1412 	struct session	*last_session;
1413 
1414 	int		 wlmouse;
1415 
1416 	int		 references;
1417 
1418 	void		*pan_window;
1419 	u_int		 pan_ox;
1420 	u_int		 pan_oy;
1421 
1422 	TAILQ_ENTRY(client) entry;
1423 };
1424 TAILQ_HEAD(clients, client);
1425 
1426 /* Key binding and key table. */
1427 struct key_binding {
1428 	key_code		 key;
1429 	struct cmd_list		*cmdlist;
1430 
1431 	int			 flags;
1432 #define KEY_BINDING_REPEAT 0x1
1433 
1434 	RB_ENTRY(key_binding)	 entry;
1435 };
1436 RB_HEAD(key_bindings, key_binding);
1437 
1438 struct key_table {
1439 	const char		*name;
1440 	struct key_bindings	 key_bindings;
1441 
1442 	u_int			 references;
1443 
1444 	RB_ENTRY(key_table)	 entry;
1445 };
1446 RB_HEAD(key_tables, key_table);
1447 
1448 /* Option table entries. */
1449 enum options_table_type {
1450 	OPTIONS_TABLE_STRING,
1451 	OPTIONS_TABLE_NUMBER,
1452 	OPTIONS_TABLE_KEY,
1453 	OPTIONS_TABLE_COLOUR,
1454 	OPTIONS_TABLE_ATTRIBUTES,
1455 	OPTIONS_TABLE_FLAG,
1456 	OPTIONS_TABLE_CHOICE,
1457 	OPTIONS_TABLE_STYLE,
1458 	OPTIONS_TABLE_ARRAY,
1459 };
1460 
1461 enum options_table_scope {
1462 	OPTIONS_TABLE_NONE,
1463 	OPTIONS_TABLE_SERVER,
1464 	OPTIONS_TABLE_SESSION,
1465 	OPTIONS_TABLE_WINDOW,
1466 };
1467 
1468 struct options_table_entry {
1469 	const char		 *name;
1470 	enum options_table_type	  type;
1471 	enum options_table_scope  scope;
1472 
1473 	u_int			  minimum;
1474 	u_int			  maximum;
1475 	const char		**choices;
1476 
1477 	const char		 *default_str;
1478 	long long		  default_num;
1479 
1480 	const char		 *separator;
1481 	const char		 *style;
1482 	const char		 *pattern;
1483 };
1484 
1485 /* Common command usages. */
1486 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1487 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1488 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1489 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1490 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1491 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1492 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1493 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1494 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1495 
1496 /* tmux.c */
1497 extern struct hooks	*global_hooks;
1498 extern struct options	*global_options;
1499 extern struct options	*global_s_options;
1500 extern struct options	*global_w_options;
1501 extern struct environ	*global_environ;
1502 extern struct timeval	 start_time;
1503 extern const char	*socket_path;
1504 extern const char	*shell_command;
1505 extern int		 ptm_fd;
1506 extern const char	*shell_command;
1507 int		 areshell(const char *);
1508 void		 setblocking(int, int);
1509 const char	*find_cwd(void);
1510 const char	*find_home(void);
1511 
1512 /* proc.c */
1513 struct imsg;
1514 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
1515 struct tmuxproc *proc_start(const char *);
1516 void	proc_loop(struct tmuxproc *, int (*)(void));
1517 void	proc_exit(struct tmuxproc *);
1518 void	proc_set_signals(struct tmuxproc *, void(*)(int));
1519 void	proc_clear_signals(struct tmuxproc *, int);
1520 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
1521 	    void (*)(struct imsg *, void *), void *);
1522 void	proc_remove_peer(struct tmuxpeer *);
1523 void	proc_kill_peer(struct tmuxpeer *);
1524 void	proc_toggle_log(struct tmuxproc *);
1525 
1526 /* cfg.c */
1527 extern int cfg_finished;
1528 void	start_cfg(void);
1529 int	load_cfg(const char *, struct client *, struct cmdq_item *, int);
1530 void	set_cfg_file(const char *);
1531 void printflike(1, 2) cfg_add_cause(const char *, ...);
1532 void	cfg_print_causes(struct cmdq_item *);
1533 void	cfg_show_causes(struct session *);
1534 
1535 /* paste.c */
1536 struct paste_buffer;
1537 const char	*paste_buffer_name(struct paste_buffer *);
1538 u_int		 paste_buffer_order(struct paste_buffer *);
1539 time_t		 paste_buffer_created(struct paste_buffer *);
1540 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1541 struct paste_buffer *paste_walk(struct paste_buffer *);
1542 struct paste_buffer *paste_get_top(const char **);
1543 struct paste_buffer *paste_get_name(const char *);
1544 void		 paste_free(struct paste_buffer *);
1545 void		 paste_add(char *, size_t);
1546 int		 paste_rename(const char *, const char *, char **);
1547 int		 paste_set(char *, size_t, const char *, char **);
1548 char		*paste_make_sample(struct paste_buffer *);
1549 
1550 /* format.c */
1551 #define FORMAT_STATUS 0x1
1552 #define FORMAT_FORCE 0x2
1553 #define FORMAT_NOJOBS 0x4
1554 #define FORMAT_NONE 0
1555 #define FORMAT_PANE 0x80000000U
1556 #define FORMAT_WINDOW 0x40000000U
1557 struct format_tree;
1558 int		 format_true(const char *);
1559 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
1560 		     int);
1561 void		 format_free(struct format_tree *);
1562 void printflike(3, 4) format_add(struct format_tree *, const char *,
1563 		     const char *, ...);
1564 char		*format_expand_time(struct format_tree *, const char *, time_t);
1565 char		*format_expand(struct format_tree *, const char *);
1566 char		*format_single(struct cmdq_item *, const char *,
1567 		     struct client *, struct session *, struct winlink *,
1568 		     struct window_pane *);
1569 void		 format_defaults(struct format_tree *, struct client *,
1570 		     struct session *, struct winlink *, struct window_pane *);
1571 void		 format_defaults_window(struct format_tree *, struct window *);
1572 void		 format_defaults_pane(struct format_tree *,
1573 		     struct window_pane *);
1574 void		 format_defaults_paste_buffer(struct format_tree *,
1575 		     struct paste_buffer *);
1576 void		 format_lost_client(struct client *);
1577 
1578 /* hooks.c */
1579 struct hook;
1580 struct hooks	*hooks_get(struct session *);
1581 struct hooks	*hooks_create(struct hooks *);
1582 void		 hooks_free(struct hooks *);
1583 struct hook	*hooks_first(struct hooks *);
1584 struct hook	*hooks_next(struct hook *);
1585 void		 hooks_add(struct hooks *, const char *, struct cmd_list *);
1586 void		 hooks_copy(struct hooks *, struct hooks *);
1587 void		 hooks_remove(struct hooks *, const char *);
1588 struct hook	*hooks_find(struct hooks *, const char *);
1589 void printflike(4, 5) hooks_insert(struct hooks *, struct cmdq_item *,
1590 		    struct cmd_find_state *, const char *, ...);
1591 
1592 /* notify.c */
1593 void	notify_hook(struct cmdq_item *, const char *);
1594 void	notify_input(struct window_pane *, struct evbuffer *);
1595 void	notify_client(const char *, struct client *);
1596 void	notify_session(const char *, struct session *);
1597 void	notify_winlink(const char *, struct winlink *);
1598 void	notify_session_window(const char *, struct session *, struct window *);
1599 void	notify_window(const char *, struct window *);
1600 void	notify_pane(const char *, struct window_pane *);
1601 
1602 /* options.c */
1603 struct options	*options_create(struct options *);
1604 void		 options_free(struct options *);
1605 struct options_entry *options_first(struct options *);
1606 struct options_entry *options_next(struct options_entry *);
1607 struct options_entry *options_empty(struct options *,
1608 		     const struct options_table_entry *);
1609 struct options_entry *options_default(struct options *,
1610 		     const struct options_table_entry *);
1611 const char	*options_name(struct options_entry *);
1612 const struct options_table_entry *options_table_entry(struct options_entry *);
1613 struct options_entry *options_get_only(struct options *, const char *);
1614 struct options_entry *options_get(struct options *, const char *);
1615 void		 options_remove(struct options_entry *);
1616 void		 options_array_clear(struct options_entry *);
1617 const char	*options_array_get(struct options_entry *, u_int);
1618 int		 options_array_set(struct options_entry *, u_int, const char *,
1619 		     int);
1620 int		 options_array_size(struct options_entry *, u_int *);
1621 void		 options_array_assign(struct options_entry *, const char *);
1622 int		 options_isstring(struct options_entry *);
1623 const char	*options_tostring(struct options_entry *, int, int);
1624 char		*options_parse(const char *, int *);
1625 struct options_entry *options_parse_get(struct options *, const char *, int *,
1626 		     int);
1627 char		*options_match(const char *, int *, int *);
1628 struct options_entry *options_match_get(struct options *, const char *, int *,
1629 		     int, int *);
1630 const char	*options_get_string(struct options *, const char *);
1631 long long	 options_get_number(struct options *, const char *);
1632 const struct grid_cell *options_get_style(struct options *, const char *);
1633 struct options_entry * printflike(4, 5) options_set_string(struct options *,
1634 		     const char *, int, const char *, ...);
1635 struct options_entry *options_set_number(struct options *, const char *,
1636 		     long long);
1637 struct options_entry *options_set_style(struct options *, const char *, int,
1638 		     const char *);
1639 enum options_table_scope options_scope_from_flags(struct args *, int,
1640 		     struct cmd_find_state *, struct options **, char **);
1641 void		 options_style_update_new(struct options *,
1642 		     struct options_entry *);
1643 void		 options_style_update_old(struct options *,
1644 		     struct options_entry *);
1645 
1646 /* options-table.c */
1647 extern const struct options_table_entry options_table[];
1648 
1649 /* job.c */
1650 typedef void (*job_update_cb) (struct job *);
1651 typedef void (*job_complete_cb) (struct job *);
1652 typedef void (*job_free_cb) (void *);
1653 #define JOB_NOWAIT 0x1
1654 struct job	*job_run(const char *, struct session *, const char *,
1655 		     job_update_cb, job_complete_cb, job_free_cb, void *, int);
1656 void		 job_free(struct job *);
1657 void		 job_check_died(pid_t, int);
1658 int		 job_get_status(struct job *);
1659 void		*job_get_data(struct job *);
1660 struct bufferevent *job_get_event(struct job *);
1661 void		 job_kill_all(void);
1662 int		 job_still_running(void);
1663 void		 job_print_summary(struct cmdq_item *, int);
1664 
1665 /* environ.c */
1666 struct environ *environ_create(void);
1667 void	environ_free(struct environ *);
1668 struct environ_entry *environ_first(struct environ *);
1669 struct environ_entry *environ_next(struct environ_entry *);
1670 void	environ_copy(struct environ *, struct environ *);
1671 struct environ_entry *environ_find(struct environ *, const char *);
1672 void printflike(3, 4) environ_set(struct environ *, const char *, const char *,
1673 	    ...);
1674 void	environ_clear(struct environ *, const char *);
1675 void	environ_put(struct environ *, const char *);
1676 void	environ_unset(struct environ *, const char *);
1677 void	environ_update(struct options *, struct environ *, struct environ *);
1678 void	environ_push(struct environ *);
1679 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
1680 struct environ *environ_for_session(struct session *, int);
1681 
1682 /* tty.c */
1683 void	tty_create_log(void);
1684 int	tty_window_bigger(struct tty *);
1685 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
1686 void	tty_update_window_offset(struct window *);
1687 void	tty_update_client_offset(struct client *);
1688 void	tty_raw(struct tty *, const char *);
1689 void	tty_attributes(struct tty *, const struct grid_cell *,
1690 	    const struct window_pane *);
1691 void	tty_reset(struct tty *);
1692 void	tty_region_off(struct tty *);
1693 void	tty_margin_off(struct tty *);
1694 void	tty_cursor(struct tty *, u_int, u_int);
1695 void	tty_putcode(struct tty *, enum tty_code_code);
1696 void	tty_putcode1(struct tty *, enum tty_code_code, int);
1697 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
1698 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
1699 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
1700 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
1701 	    const void *);
1702 void	tty_puts(struct tty *, const char *);
1703 void	tty_putc(struct tty *, u_char);
1704 void	tty_putn(struct tty *, const void *, size_t, u_int);
1705 int	tty_init(struct tty *, struct client *, int, char *);
1706 void	tty_resize(struct tty *);
1707 void	tty_set_size(struct tty *, u_int, u_int);
1708 void	tty_start_tty(struct tty *);
1709 void	tty_stop_tty(struct tty *);
1710 void	tty_set_title(struct tty *, const char *);
1711 void	tty_update_mode(struct tty *, int, struct screen *);
1712 void	tty_draw_line(struct tty *, const struct window_pane *, struct screen *,
1713 	    u_int, u_int, u_int, u_int, u_int);
1714 int	tty_open(struct tty *, char **);
1715 void	tty_close(struct tty *);
1716 void	tty_free(struct tty *);
1717 void	tty_set_type(struct tty *, int);
1718 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
1719 	    struct tty_ctx *);
1720 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1721 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
1722 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
1723 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1724 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1725 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1726 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1727 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1728 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1729 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1730 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
1731 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1732 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
1733 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1734 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1735 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1736 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
1737 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1738 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
1739 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
1740 
1741 /* tty-term.c */
1742 extern struct tty_terms tty_terms;
1743 u_int		 tty_term_ncodes(void);
1744 struct tty_term *tty_term_find(char *, int, char **);
1745 void		 tty_term_free(struct tty_term *);
1746 int		 tty_term_has(struct tty_term *, enum tty_code_code);
1747 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
1748 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
1749 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
1750 		     int);
1751 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
1752 		     int, int);
1753 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
1754 		     const void *);
1755 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
1756 		     const void *, const void *);
1757 int		 tty_term_number(struct tty_term *, enum tty_code_code);
1758 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
1759 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
1760 
1761 /* tty-acs.c */
1762 int		 tty_acs_needed(struct tty *);
1763 const char	*tty_acs_get(struct tty *, u_char);
1764 
1765 /* tty-keys.c */
1766 void		tty_keys_build(struct tty *);
1767 void		tty_keys_free(struct tty *);
1768 key_code	tty_keys_next(struct tty *);
1769 
1770 /* arguments.c */
1771 void		 args_set(struct args *, u_char, const char *);
1772 struct args	*args_parse(const char *, int, char **);
1773 void		 args_free(struct args *);
1774 char		*args_print(struct args *);
1775 int		 args_has(struct args *, u_char);
1776 const char	*args_get(struct args *, u_char);
1777 long long	 args_strtonum(struct args *, u_char, long long, long long,
1778 		     char **);
1779 
1780 /* cmd-find.c */
1781 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
1782 		     const char *, enum cmd_find_type, int);
1783 struct client	*cmd_find_best_client(struct session *);
1784 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
1785 void		 cmd_find_clear_state(struct cmd_find_state *, int);
1786 int		 cmd_find_empty_state(struct cmd_find_state *);
1787 int		 cmd_find_valid_state(struct cmd_find_state *);
1788 void		 cmd_find_copy_state(struct cmd_find_state *,
1789 		     struct cmd_find_state *);
1790 void		 cmd_find_from_session(struct cmd_find_state *,
1791 		     struct session *, int);
1792 void		 cmd_find_from_winlink(struct cmd_find_state *,
1793 		     struct winlink *, int);
1794 int		 cmd_find_from_session_window(struct cmd_find_state *,
1795 		     struct session *, struct window *, int);
1796 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
1797 		     int);
1798 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
1799 		     struct winlink *, struct window_pane *, int);
1800 int		 cmd_find_from_pane(struct cmd_find_state *,
1801 		     struct window_pane *, int);
1802 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
1803 		     int);
1804 int		 cmd_find_from_mouse(struct cmd_find_state *,
1805 		     struct mouse_event *, int);
1806 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
1807 
1808 /* cmd.c */
1809 void		 cmd_log_argv(int, char **, const char *);
1810 int		 cmd_pack_argv(int, char **, char *, size_t);
1811 int		 cmd_unpack_argv(char *, size_t, int, char ***);
1812 char	       **cmd_copy_argv(int, char **);
1813 void		 cmd_free_argv(int, char **);
1814 char		*cmd_stringify_argv(int, char **);
1815 struct cmd	*cmd_parse(int, char **, const char *, u_int, char **);
1816 char		*cmd_print(struct cmd *);
1817 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
1818 		     u_int *, u_int *, int);
1819 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
1820 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
1821 		     struct winlink **);
1822 char		*cmd_template_replace(const char *, const char *, int);
1823 extern const struct cmd_entry *cmd_table[];
1824 
1825 /* cmd-attach-session.c */
1826 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
1827 		     const char *, int);
1828 
1829 /* cmd-list.c */
1830 struct cmd_list	*cmd_list_parse(int, char **, const char *, u_int, char **);
1831 void		 cmd_list_free(struct cmd_list *);
1832 char		*cmd_list_print(struct cmd_list *);
1833 
1834 /* cmd-queue.c */
1835 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmd_find_state *,
1836 		     struct mouse_event *, int);
1837 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
1838 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
1839 void		 cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
1840 void		 cmdq_append(struct client *, struct cmdq_item *);
1841 void printflike(3, 4) cmdq_format(struct cmdq_item *, const char *,
1842 		     const char *, ...);
1843 u_int		 cmdq_next(struct client *);
1844 void		 cmdq_guard(struct cmdq_item *, const char *, int);
1845 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
1846 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
1847 
1848 /* cmd-string.c */
1849 int		 cmd_string_split(const char *, int *, char ***);
1850 struct cmd_list	*cmd_string_parse(const char *, const char *, u_int, char **);
1851 
1852 /* cmd-wait-for.c */
1853 void	cmd_wait_for_flush(void);
1854 
1855 /* client.c */
1856 int	client_main(struct event_base *, int, char **, int);
1857 
1858 /* key-bindings.c */
1859 struct key_table *key_bindings_get_table(const char *, int);
1860 struct key_table *key_bindings_first_table(void);
1861 struct key_table *key_bindings_next_table(struct key_table *);
1862 void	 key_bindings_unref_table(struct key_table *);
1863 struct key_binding *key_bindings_get(struct key_table *, key_code);
1864 struct key_binding *key_bindings_first(struct key_table *);
1865 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
1866 void	 key_bindings_add(const char *, key_code, int, struct cmd_list *);
1867 void	 key_bindings_remove(const char *, key_code);
1868 void	 key_bindings_remove_table(const char *);
1869 void	 key_bindings_init(void);
1870 void	 key_bindings_dispatch(struct key_binding *, struct cmdq_item *,
1871 	     struct client *, struct mouse_event *, struct cmd_find_state *);
1872 
1873 /* key-string.c */
1874 key_code	 key_string_lookup_string(const char *);
1875 const char	*key_string_lookup_key(key_code);
1876 
1877 /* alerts.c */
1878 void	alerts_reset_all(void);
1879 void	alerts_queue(struct window *, int);
1880 void	alerts_check_session(struct session *);
1881 
1882 /* server.c */
1883 extern struct tmuxproc *server_proc;
1884 extern struct clients clients;
1885 extern struct cmd_find_state marked_pane;
1886 void	 server_set_marked(struct session *, struct winlink *,
1887 	     struct window_pane *);
1888 void	 server_clear_marked(void);
1889 int	 server_is_marked(struct session *, struct winlink *,
1890 	     struct window_pane *);
1891 int	 server_check_marked(void);
1892 int	 server_start(struct tmuxproc *, struct event_base *, int, char *);
1893 void	 server_update_socket(void);
1894 void	 server_add_accept(int);
1895 
1896 /* server-client.c */
1897 u_int	 server_client_how_many(void);
1898 void	 server_client_set_identify(struct client *, u_int);
1899 void	 server_client_set_key_table(struct client *, const char *);
1900 const char *server_client_get_key_table(struct client *);
1901 int	 server_client_check_nested(struct client *);
1902 void	 server_client_handle_key(struct client *, key_code);
1903 struct client *server_client_create(int);
1904 int	 server_client_open(struct client *, char **);
1905 void	 server_client_unref(struct client *);
1906 void	 server_client_lost(struct client *);
1907 void	 server_client_suspend(struct client *);
1908 void	 server_client_detach(struct client *, enum msgtype);
1909 void	 server_client_exec(struct client *, const char *);
1910 void	 server_client_loop(void);
1911 void	 server_client_push_stdout(struct client *);
1912 void	 server_client_push_stderr(struct client *);
1913 void printflike(2, 3) server_client_add_message(struct client *, const char *,
1914 	     ...);
1915 char	*server_client_get_path(struct client *, const char *);
1916 const char *server_client_get_cwd(struct client *, struct session *);
1917 
1918 /* server-fn.c */
1919 void	 server_redraw_client(struct client *);
1920 void	 server_status_client(struct client *);
1921 void	 server_redraw_session(struct session *);
1922 void	 server_redraw_session_group(struct session *);
1923 void	 server_status_session(struct session *);
1924 void	 server_status_session_group(struct session *);
1925 void	 server_redraw_window(struct window *);
1926 void	 server_redraw_window_borders(struct window *);
1927 void	 server_status_window(struct window *);
1928 void	 server_lock(void);
1929 void	 server_lock_session(struct session *);
1930 void	 server_lock_client(struct client *);
1931 void	 server_kill_pane(struct window_pane *);
1932 void	 server_kill_window(struct window *);
1933 int	 server_link_window(struct session *,
1934 	     struct winlink *, struct session *, int, int, int, char **);
1935 void	 server_unlink_window(struct session *, struct winlink *);
1936 void	 server_destroy_pane(struct window_pane *, int);
1937 void	 server_destroy_session(struct session *);
1938 void	 server_check_unattached(void);
1939 int	 server_set_stdin_callback(struct client *, void (*)(struct client *,
1940 	     int, void *), void *, char **);
1941 void	 server_unzoom_window(struct window *);
1942 
1943 /* status.c */
1944 void	 status_timer_start(struct client *);
1945 void	 status_timer_start_all(void);
1946 void	 status_update_saved(struct session *);
1947 int	 status_at_line(struct client *);
1948 u_int	 status_line_size(struct client *);
1949 struct window *status_get_window_at(struct client *, u_int);
1950 int	 status_redraw(struct client *);
1951 void printflike(2, 3) status_message_set(struct client *, const char *, ...);
1952 void	 status_message_clear(struct client *);
1953 int	 status_message_redraw(struct client *);
1954 void	 status_prompt_set(struct client *, const char *, const char *,
1955 	     prompt_input_cb, prompt_free_cb, void *, int);
1956 void	 status_prompt_clear(struct client *);
1957 int	 status_prompt_redraw(struct client *);
1958 int	 status_prompt_key(struct client *, key_code);
1959 void	 status_prompt_update(struct client *, const char *, const char *);
1960 void	 status_prompt_load_history(void);
1961 void	 status_prompt_save_history(void);
1962 
1963 /* resize.c */
1964 void	 resize_window(struct window *, u_int, u_int);
1965 void	 default_window_size(struct session *, struct window *, u_int *,
1966 	     u_int *, int);
1967 void	 recalculate_sizes(void);
1968 
1969 /* input.c */
1970 void	 input_init(struct window_pane *);
1971 void	 input_free(struct window_pane *);
1972 void	 input_reset(struct window_pane *, int);
1973 struct evbuffer *input_pending(struct window_pane *);
1974 void	 input_parse(struct window_pane *);
1975 
1976 /* input-key.c */
1977 void	 input_key(struct window_pane *, key_code, struct mouse_event *);
1978 
1979 /* xterm-keys.c */
1980 char	*xterm_keys_lookup(key_code);
1981 int	 xterm_keys_find(const char *, size_t, size_t *, key_code *);
1982 
1983 /* colour.c */
1984 int	 colour_find_rgb(u_char, u_char, u_char);
1985 int	 colour_join_rgb(u_char, u_char, u_char);
1986 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
1987 const char *colour_tostring(int);
1988 int	 colour_fromstring(const char *s);
1989 u_char	 colour_256to16(u_char);
1990 
1991 /* attributes.c */
1992 const char *attributes_tostring(int);
1993 int	 attributes_fromstring(const char *);
1994 
1995 /* grid.c */
1996 extern const struct grid_cell grid_default_cell;
1997 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
1998 struct grid *grid_create(u_int, u_int, u_int);
1999 void	 grid_destroy(struct grid *);
2000 int	 grid_compare(struct grid *, struct grid *);
2001 void	 grid_collect_history(struct grid *);
2002 void	 grid_scroll_history(struct grid *, u_int);
2003 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2004 void	 grid_clear_history(struct grid *);
2005 const struct grid_line *grid_peek_line(struct grid *, u_int);
2006 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2007 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2008 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2009 	     const char *, size_t);
2010 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2011 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2012 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2013 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2014 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2015 	     struct grid_cell **, int, int, int);
2016 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2017 	     u_int);
2018 void	 grid_reflow(struct grid *, u_int, u_int *);
2019 struct grid_line *grid_get_line(struct grid *, u_int);
2020 void	 grid_adjust_lines(struct grid *, u_int);
2021 
2022 /* grid-view.c */
2023 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2024 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2025 	     const struct grid_cell *);
2026 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2027 	     const struct grid_cell *, const char *, size_t);
2028 void	 grid_view_clear_history(struct grid *, u_int);
2029 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2030 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2031 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2032 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2033 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2034 	     u_int);
2035 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2036 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2037 	     u_int);
2038 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2039 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2040 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2041 
2042 /* screen-write.c */
2043 void	 screen_write_start(struct screen_write_ctx *, struct window_pane *,
2044 	     struct screen *);
2045 void	 screen_write_stop(struct screen_write_ctx *);
2046 void	 screen_write_reset(struct screen_write_ctx *);
2047 size_t printflike(1, 2) screen_write_cstrlen(const char *, ...);
2048 void printflike(4, 5) screen_write_cnputs(struct screen_write_ctx *,
2049 	     ssize_t, const struct grid_cell *, const char *, ...);
2050 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2051 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2052 	     const struct grid_cell *, const char *, ...);
2053 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2054 	     ssize_t, const struct grid_cell *, const char *, ...);
2055 void	 screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2056 	     const struct grid_cell *, const char *, va_list);
2057 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2058 	     u_char);
2059 void	 screen_write_copy(struct screen_write_ctx *, struct screen *, u_int,
2060 	     u_int, u_int, u_int, bitstr_t *, const struct grid_cell *);
2061 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2062 	     u_int, u_int, u_int, u_int);
2063 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2064 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2065 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int);
2066 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2067 	     u_int);
2068 void	 screen_write_backspace(struct screen_write_ctx *);
2069 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2070 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2071 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2072 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2073 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2074 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2075 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2076 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2077 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2078 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2079 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2080 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2081 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2082 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2083 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2084 void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
2085 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2086 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2087 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2088 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2089 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2090 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2091 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2092 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2093 void	 screen_write_clearhistory(struct screen_write_ctx *);
2094 void	 screen_write_collect_end(struct screen_write_ctx *);
2095 void	 screen_write_collect_add(struct screen_write_ctx *,
2096 	     const struct grid_cell *);
2097 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2098 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2099 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2100 
2101 /* screen-redraw.c */
2102 void	 screen_redraw_screen(struct client *);
2103 void	 screen_redraw_pane(struct client *, struct window_pane *);
2104 
2105 /* screen.c */
2106 void	 screen_init(struct screen *, u_int, u_int, u_int);
2107 void	 screen_reinit(struct screen *);
2108 void	 screen_free(struct screen *);
2109 void	 screen_reset_tabs(struct screen *);
2110 void	 screen_set_cursor_style(struct screen *, u_int);
2111 void	 screen_set_cursor_colour(struct screen *, const char *);
2112 void	 screen_set_title(struct screen *, const char *);
2113 void	 screen_push_title(struct screen *);
2114 void	 screen_pop_title(struct screen *);
2115 void	 screen_resize(struct screen *, u_int, u_int, int);
2116 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2117 	     u_int, int, struct grid_cell *);
2118 void	 screen_clear_selection(struct screen *);
2119 void	 screen_hide_selection(struct screen *);
2120 int	 screen_check_selection(struct screen *, u_int, u_int);
2121 void	 screen_select_cell(struct screen *, struct grid_cell *,
2122 	     const struct grid_cell *);
2123 
2124 /* window.c */
2125 extern struct windows windows;
2126 extern struct window_pane_tree all_window_panes;
2127 int		 window_cmp(struct window *, struct window *);
2128 RB_PROTOTYPE(windows, window, entry, window_cmp);
2129 int		 winlink_cmp(struct winlink *, struct winlink *);
2130 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2131 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2132 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2133 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2134 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2135 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2136 u_int		 winlink_count(struct winlinks *);
2137 struct winlink	*winlink_add(struct winlinks *, int);
2138 void		 winlink_set_window(struct winlink *, struct window *);
2139 void		 winlink_remove(struct winlinks *, struct winlink *);
2140 struct winlink	*winlink_next(struct winlink *);
2141 struct winlink	*winlink_previous(struct winlink *);
2142 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2143 		     int);
2144 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2145 		     int);
2146 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2147 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2148 struct window	*window_find_by_id_str(const char *);
2149 struct window	*window_find_by_id(u_int);
2150 void		 window_update_activity(struct window *);
2151 struct window	*window_create(u_int, u_int);
2152 struct window	*window_create_spawn(const char *, int, char **, const char *,
2153 		     const char *, const char *, struct environ *,
2154 		     struct termios *, u_int, u_int, u_int, char **);
2155 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2156 struct window_pane *window_find_string(struct window *, const char *);
2157 int		 window_has_pane(struct window *, struct window_pane *);
2158 int		 window_set_active_pane(struct window *, struct window_pane *);
2159 void		 window_redraw_active_switch(struct window *,
2160 		     struct window_pane *);
2161 struct window_pane *window_add_pane(struct window *, struct window_pane *, int,
2162 		     int, u_int);
2163 void		 window_resize(struct window *, u_int, u_int);
2164 int		 window_zoom(struct window_pane *);
2165 int		 window_unzoom(struct window *);
2166 void		 window_lost_pane(struct window *, struct window_pane *);
2167 void		 window_remove_pane(struct window *, struct window_pane *);
2168 struct window_pane *window_pane_at_index(struct window *, u_int);
2169 struct window_pane *window_pane_next_by_number(struct window *,
2170 			struct window_pane *, u_int);
2171 struct window_pane *window_pane_previous_by_number(struct window *,
2172 			struct window_pane *, u_int);
2173 int		 window_pane_index(struct window_pane *, u_int *);
2174 u_int		 window_count_panes(struct window *);
2175 void		 window_destroy_panes(struct window *);
2176 struct window_pane *window_pane_find_by_id_str(const char *);
2177 struct window_pane *window_pane_find_by_id(u_int);
2178 int		 window_pane_destroy_ready(struct window_pane *);
2179 int		 window_pane_spawn(struct window_pane *, int, char **,
2180 		     const char *, const char *, const char *, struct environ *,
2181 		     struct termios *, char **);
2182 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2183 void		 window_pane_alternate_on(struct window_pane *,
2184 		     struct grid_cell *, int);
2185 void		 window_pane_alternate_off(struct window_pane *,
2186 		     struct grid_cell *, int);
2187 void		 window_pane_set_palette(struct window_pane *, u_int, int);
2188 void		 window_pane_unset_palette(struct window_pane *, u_int);
2189 void		 window_pane_reset_palette(struct window_pane *);
2190 int		 window_pane_get_palette(const struct window_pane *, int);
2191 int		 window_pane_set_mode(struct window_pane *,
2192 		     const struct window_mode *, struct cmd_find_state *,
2193 		     struct args *);
2194 void		 window_pane_reset_mode(struct window_pane *);
2195 void		 window_pane_key(struct window_pane *, struct client *,
2196 		     struct session *, key_code, struct mouse_event *);
2197 int		 window_pane_visible(struct window_pane *);
2198 u_int		 window_pane_search(struct window_pane *, const char *);
2199 const char	*window_printable_flags(struct winlink *);
2200 struct window_pane *window_pane_find_up(struct window_pane *);
2201 struct window_pane *window_pane_find_down(struct window_pane *);
2202 struct window_pane *window_pane_find_left(struct window_pane *);
2203 struct window_pane *window_pane_find_right(struct window_pane *);
2204 void		 window_set_name(struct window *, const char *);
2205 void		 window_add_ref(struct window *, const char *);
2206 void		 window_remove_ref(struct window *, const char *);
2207 void		 winlink_clear_flags(struct winlink *);
2208 int		 winlink_shuffle_up(struct session *, struct winlink *);
2209 
2210 /* layout.c */
2211 u_int		 layout_count_cells(struct layout_cell *);
2212 struct layout_cell *layout_create_cell(struct layout_cell *);
2213 void		 layout_free_cell(struct layout_cell *);
2214 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2215 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2216 		     struct layout_cell **);
2217 void		 layout_resize_layout(struct window *, struct layout_cell *,
2218 		     enum layout_type, int, int);
2219 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2220 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2221 		     u_int);
2222 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2223 void		 layout_make_node(struct layout_cell *, enum layout_type);
2224 void		 layout_fix_offsets(struct layout_cell *);
2225 void		 layout_fix_panes(struct window *);
2226 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2227 		     enum layout_type, int);
2228 void		 layout_init(struct window *, struct window_pane *);
2229 void		 layout_free(struct window *);
2230 void		 layout_resize(struct window *, u_int, u_int);
2231 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2232 		     int, int);
2233 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2234 		     u_int);
2235 void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
2236 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2237 		     int, int, int);
2238 void		 layout_close_pane(struct window_pane *);
2239 int		 layout_spread_cell(struct window *, struct layout_cell *);
2240 void		 layout_spread_out(struct window_pane *);
2241 
2242 /* layout-custom.c */
2243 char		*layout_dump(struct layout_cell *);
2244 int		 layout_parse(struct window *, const char *);
2245 
2246 /* layout-set.c */
2247 int		 layout_set_lookup(const char *);
2248 u_int		 layout_set_select(struct window *, u_int);
2249 u_int		 layout_set_next(struct window *);
2250 u_int		 layout_set_previous(struct window *);
2251 
2252 /* mode-tree.c */
2253 typedef void (*mode_tree_build_cb)(void *, u_int, uint64_t *, const char *);
2254 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2255     u_int, u_int);
2256 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2257 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2258 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2259 void	*mode_tree_get_current(struct mode_tree_data *);
2260 void	 mode_tree_expand_current(struct mode_tree_data *);
2261 void	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2262 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2263 	     struct client *, key_code, int);
2264 void	 mode_tree_down(struct mode_tree_data *, int);
2265 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2266 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2267 	     void *, const char **, u_int, struct screen **);
2268 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2269 void	 mode_tree_build(struct mode_tree_data *);
2270 void	 mode_tree_free(struct mode_tree_data *);
2271 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2272 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2273 	     struct mode_tree_item *, void *, uint64_t, const char *,
2274 	     const char *, int);
2275 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2276 void	 mode_tree_draw(struct mode_tree_data *);
2277 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2278 	     struct mouse_event *, u_int *, u_int *);
2279 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2280 	     const char *, const char *);
2281 
2282 /* window-buffer.c */
2283 extern const struct window_mode window_buffer_mode;
2284 
2285 /* window-tree.c */
2286 extern const struct window_mode window_tree_mode;
2287 
2288 /* window-clock.c */
2289 extern const struct window_mode window_clock_mode;
2290 extern const char window_clock_table[14][5][5];
2291 
2292 /* window-client.c */
2293 extern const struct window_mode window_client_mode;
2294 
2295 /* window-copy.c */
2296 extern const struct window_mode window_copy_mode;
2297 void		 window_copy_init_from_pane(struct window_pane *, int);
2298 void		 window_copy_init_for_output(struct window_pane *);
2299 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
2300 void		 window_copy_vadd(struct window_pane *, const char *, va_list);
2301 void		 window_copy_pageup(struct window_pane *, int);
2302 void		 window_copy_start_drag(struct client *, struct mouse_event *);
2303 void		 window_copy_add_formats(struct window_pane *,
2304 		     struct format_tree *);
2305 
2306 /* names.c */
2307 void	 check_window_name(struct window *);
2308 char	*default_window_name(struct window *);
2309 char	*parse_window_name(const char *);
2310 
2311 /* control.c */
2312 void	control_callback(struct client *, int, void *);
2313 void printflike(2, 3) control_write(struct client *, const char *, ...);
2314 void	control_write_buffer(struct client *, struct evbuffer *);
2315 
2316 /* control-notify.c */
2317 void	control_notify_input(struct client *, struct window_pane *,
2318 	    struct evbuffer *);
2319 void	control_notify_pane_mode_changed(int);
2320 void	control_notify_window_layout_changed(struct window *);
2321 void	control_notify_window_pane_changed(struct window *);
2322 void	control_notify_window_unlinked(struct session *, struct window *);
2323 void	control_notify_window_linked(struct session *, struct window *);
2324 void	control_notify_window_renamed(struct window *);
2325 void	control_notify_client_session_changed(struct client *);
2326 void	control_notify_session_renamed(struct session *);
2327 void	control_notify_session_created(struct session *);
2328 void	control_notify_session_closed(struct session *);
2329 void	control_notify_session_window_changed(struct session *);
2330 
2331 /* session.c */
2332 extern struct sessions sessions;
2333 int	session_cmp(struct session *, struct session *);
2334 RB_PROTOTYPE(sessions, session, entry, session_cmp);
2335 int		 session_alive(struct session *);
2336 struct session	*session_find(const char *);
2337 struct session	*session_find_by_id_str(const char *);
2338 struct session	*session_find_by_id(u_int);
2339 struct session	*session_create(const char *, const char *, int, char **,
2340 		     const char *, const char *, struct environ *,
2341 		     struct options *, struct termios *, int, char **);
2342 void		 session_destroy(struct session *, const char *);
2343 void		 session_add_ref(struct session *, const char *);
2344 void		 session_remove_ref(struct session *, const char *);
2345 int		 session_check_name(const char *);
2346 void		 session_update_activity(struct session *, struct timeval *);
2347 struct session	*session_next_session(struct session *);
2348 struct session	*session_previous_session(struct session *);
2349 struct winlink	*session_new(struct session *, const char *, int, char **,
2350 		     const char *, const char *, int, char **);
2351 struct winlink	*session_attach(struct session *, struct window *, int,
2352 		     char **);
2353 int		 session_detach(struct session *, struct winlink *);
2354 int		 session_has(struct session *, struct window *);
2355 int		 session_is_linked(struct session *, struct window *);
2356 int		 session_next(struct session *, int);
2357 int		 session_previous(struct session *, int);
2358 int		 session_select(struct session *, int);
2359 int		 session_last(struct session *);
2360 int		 session_set_current(struct session *, struct winlink *);
2361 struct session_group *session_group_contains(struct session *);
2362 struct session_group *session_group_find(const char *);
2363 struct session_group *session_group_new(const char *);
2364 void		 session_group_add(struct session_group *, struct session *);
2365 void		 session_group_synchronize_to(struct session *);
2366 void		 session_group_synchronize_from(struct session *);
2367 u_int		 session_group_count(struct session_group *);
2368 void		 session_renumber_windows(struct session *);
2369 
2370 /* utf8.c */
2371 void		 utf8_set(struct utf8_data *, u_char);
2372 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
2373 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
2374 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
2375 enum utf8_state	 utf8_combine(const struct utf8_data *, wchar_t *);
2376 enum utf8_state	 utf8_split(wchar_t, struct utf8_data *);
2377 int		 utf8_isvalid(const char *);
2378 int		 utf8_strvis(char *, const char *, size_t, int);
2379 int		 utf8_stravis(char **, const char *, int);
2380 char		*utf8_sanitize(const char *);
2381 size_t		 utf8_strlen(const struct utf8_data *);
2382 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
2383 struct utf8_data *utf8_fromcstr(const char *);
2384 char		*utf8_tocstr(struct utf8_data *);
2385 u_int		 utf8_cstrwidth(const char *);
2386 char		*utf8_rtrimcstr(const char *, u_int);
2387 char		*utf8_trimcstr(const char *, u_int);
2388 char		*utf8_padcstr(const char *, u_int);
2389 
2390 /* procname.c */
2391 char   *get_proc_name(int, char *);
2392 
2393 /* log.c */
2394 void	log_add_level(void);
2395 int	log_get_level(void);
2396 void	log_open(const char *);
2397 void	log_toggle(const char *);
2398 void	log_close(void);
2399 void printflike(1, 2) log_debug(const char *, ...);
2400 __dead void printflike(1, 2) fatal(const char *, ...);
2401 __dead void printflike(1, 2) fatalx(const char *, ...);
2402 
2403 /* style.c */
2404 int		 style_parse(const struct grid_cell *,
2405 		     struct grid_cell *, const char *);
2406 const char	*style_tostring(struct grid_cell *);
2407 void		 style_apply(struct grid_cell *, struct options *,
2408 		     const char *);
2409 void		 style_apply_update(struct grid_cell *, struct options *,
2410 		     const char *);
2411 int		 style_equal(const struct grid_cell *,
2412 		     const struct grid_cell *);
2413 
2414 #endif /* TMUX_H */
2415