xref: /openbsd-src/usr.bin/tmux/tmux.h (revision c1a45aed656e7d5627c30c92421893a76f370ccb)
1 /* $OpenBSD: tmux.h,v 1.1166 2022/03/24 09:05:57 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 
34 #include "tmux-protocol.h"
35 #include "xmalloc.h"
36 
37 extern char   **environ;
38 
39 struct args;
40 struct args_command_state;
41 struct client;
42 struct cmd;
43 struct cmd_find_state;
44 struct cmdq_item;
45 struct cmdq_list;
46 struct cmdq_state;
47 struct cmds;
48 struct control_state;
49 struct environ;
50 struct format_job_tree;
51 struct format_tree;
52 struct input_ctx;
53 struct job;
54 struct menu_data;
55 struct mode_tree_data;
56 struct mouse_event;
57 struct options;
58 struct options_array_item;
59 struct options_entry;
60 struct screen_write_citem;
61 struct screen_write_cline;
62 struct screen_write_ctx;
63 struct session;
64 struct tty_ctx;
65 struct tty_code;
66 struct tty_key;
67 struct tmuxpeer;
68 struct tmuxproc;
69 struct winlink;
70 
71 /* Default configuration files and socket paths. */
72 #ifndef TMUX_CONF
73 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
74 #endif
75 #ifndef TMUX_SOCK
76 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
77 #endif
78 #ifndef TMUX_TERM
79 #define TMUX_TERM "screen"
80 #endif
81 
82 /* Minimum layout cell size, NOT including border lines. */
83 #define PANE_MINIMUM 1
84 
85 /* Minimum and maximum window size. */
86 #define WINDOW_MINIMUM PANE_MINIMUM
87 #define WINDOW_MAXIMUM 10000
88 
89 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
90 #define NAME_INTERVAL 500000
91 
92 /* Default pixel cell sizes. */
93 #define DEFAULT_XPIXEL 16
94 #define DEFAULT_YPIXEL 32
95 
96 /* Attribute to make GCC check printf-like arguments. */
97 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
98 
99 /* Number of items in array. */
100 #ifndef nitems
101 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
102 #endif
103 
104 /* Alert option values. */
105 #define ALERT_NONE 0
106 #define ALERT_ANY 1
107 #define ALERT_CURRENT 2
108 #define ALERT_OTHER 3
109 
110 /* Visual option values. */
111 #define VISUAL_OFF 0
112 #define VISUAL_ON 1
113 #define VISUAL_BOTH 2
114 
115 /* No key or unknown key. */
116 #define KEYC_NONE            0x000ff000000000ULL
117 #define KEYC_UNKNOWN         0x000fe000000000ULL
118 
119 /*
120  * Base for special (that is, not Unicode) keys. An enum must be at most a
121  * signed int, so these are based in the highest Unicode PUA.
122  */
123 #define KEYC_BASE            0x0000000010e000ULL
124 #define KEYC_USER            0x0000000010f000ULL
125 
126 /* Key modifier bits. */
127 #define KEYC_META            0x00100000000000ULL
128 #define KEYC_CTRL            0x00200000000000ULL
129 #define KEYC_SHIFT           0x00400000000000ULL
130 
131 /* Key flag bits. */
132 #define KEYC_LITERAL         0x01000000000000ULL
133 #define KEYC_KEYPAD          0x02000000000000ULL
134 #define KEYC_CURSOR          0x04000000000000ULL
135 #define KEYC_IMPLIED_META    0x08000000000000ULL
136 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
137 #define KEYC_VI              0x20000000000000ULL
138 
139 /* Masks for key bits. */
140 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
141 #define KEYC_MASK_FLAGS      0xff000000000000ULL
142 #define KEYC_MASK_KEY        0x000fffffffffffULL
143 
144 /* Available user keys. */
145 #define KEYC_NUSER 1000
146 
147 /* Is this a mouse key? */
148 #define KEYC_IS_MOUSE(key) \
149 	(((key) & KEYC_MASK_KEY) >= KEYC_MOUSE && \
150 	 ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
151 
152 /* Is this a Unicode key? */
153 #define KEYC_IS_UNICODE(key) \
154 	(((key) & KEYC_MASK_KEY) > 0x7f && \
155 	 (((key) & KEYC_MASK_KEY) < KEYC_BASE || \
156 	  ((key) & KEYC_MASK_KEY) >= KEYC_BASE_END))
157 
158 /* Multiple click timeout. */
159 #define KEYC_CLICK_TIMEOUT 300
160 
161 /* Mouse key codes. */
162 #define KEYC_MOUSE_KEY(name)					\
163 	KEYC_ ## name ## _PANE,					\
164 	KEYC_ ## name ## _STATUS,				\
165 	KEYC_ ## name ## _STATUS_LEFT,				\
166 	KEYC_ ## name ## _STATUS_RIGHT,				\
167 	KEYC_ ## name ## _STATUS_DEFAULT,			\
168 	KEYC_ ## name ## _BORDER
169 #define KEYC_MOUSE_STRING(name, s)				\
170 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
171 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
172 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
173 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
174 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT }, \
175 	{ #s "Border", KEYC_ ## name ## _BORDER }
176 
177 /*
178  * A single key. This can be ASCII or Unicode or one of the keys between
179  * KEYC_BASE and KEYC_BASE_END.
180  */
181 typedef unsigned long long key_code;
182 
183 /* Special key codes. */
184 enum {
185 	/* Focus events. */
186 	KEYC_FOCUS_IN = KEYC_BASE,
187 	KEYC_FOCUS_OUT,
188 
189 	/* "Any" key, used if not found in key table. */
190 	KEYC_ANY,
191 
192 	/* Paste brackets. */
193 	KEYC_PASTE_START,
194 	KEYC_PASTE_END,
195 
196 	/* Mouse keys. */
197 	KEYC_MOUSE, /* unclassified mouse event */
198 	KEYC_DRAGGING, /* dragging in progress */
199 	KEYC_DOUBLECLICK, /* double click complete */
200 	KEYC_MOUSE_KEY(MOUSEMOVE),
201 	KEYC_MOUSE_KEY(MOUSEDOWN1),
202 	KEYC_MOUSE_KEY(MOUSEDOWN2),
203 	KEYC_MOUSE_KEY(MOUSEDOWN3),
204 	KEYC_MOUSE_KEY(MOUSEDOWN6),
205 	KEYC_MOUSE_KEY(MOUSEDOWN7),
206 	KEYC_MOUSE_KEY(MOUSEDOWN8),
207 	KEYC_MOUSE_KEY(MOUSEDOWN9),
208 	KEYC_MOUSE_KEY(MOUSEDOWN10),
209 	KEYC_MOUSE_KEY(MOUSEDOWN11),
210 	KEYC_MOUSE_KEY(MOUSEUP1),
211 	KEYC_MOUSE_KEY(MOUSEUP2),
212 	KEYC_MOUSE_KEY(MOUSEUP3),
213 	KEYC_MOUSE_KEY(MOUSEUP6),
214 	KEYC_MOUSE_KEY(MOUSEUP7),
215 	KEYC_MOUSE_KEY(MOUSEUP8),
216 	KEYC_MOUSE_KEY(MOUSEUP9),
217 	KEYC_MOUSE_KEY(MOUSEUP10),
218 	KEYC_MOUSE_KEY(MOUSEUP11),
219 	KEYC_MOUSE_KEY(MOUSEDRAG1),
220 	KEYC_MOUSE_KEY(MOUSEDRAG2),
221 	KEYC_MOUSE_KEY(MOUSEDRAG3),
222 	KEYC_MOUSE_KEY(MOUSEDRAG6),
223 	KEYC_MOUSE_KEY(MOUSEDRAG7),
224 	KEYC_MOUSE_KEY(MOUSEDRAG8),
225 	KEYC_MOUSE_KEY(MOUSEDRAG9),
226 	KEYC_MOUSE_KEY(MOUSEDRAG10),
227 	KEYC_MOUSE_KEY(MOUSEDRAG11),
228 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
229 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
230 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
231 	KEYC_MOUSE_KEY(MOUSEDRAGEND6),
232 	KEYC_MOUSE_KEY(MOUSEDRAGEND7),
233 	KEYC_MOUSE_KEY(MOUSEDRAGEND8),
234 	KEYC_MOUSE_KEY(MOUSEDRAGEND9),
235 	KEYC_MOUSE_KEY(MOUSEDRAGEND10),
236 	KEYC_MOUSE_KEY(MOUSEDRAGEND11),
237 	KEYC_MOUSE_KEY(WHEELUP),
238 	KEYC_MOUSE_KEY(WHEELDOWN),
239 	KEYC_MOUSE_KEY(SECONDCLICK1),
240 	KEYC_MOUSE_KEY(SECONDCLICK2),
241 	KEYC_MOUSE_KEY(SECONDCLICK3),
242 	KEYC_MOUSE_KEY(SECONDCLICK6),
243 	KEYC_MOUSE_KEY(SECONDCLICK7),
244 	KEYC_MOUSE_KEY(SECONDCLICK8),
245 	KEYC_MOUSE_KEY(SECONDCLICK9),
246 	KEYC_MOUSE_KEY(SECONDCLICK10),
247 	KEYC_MOUSE_KEY(SECONDCLICK11),
248 	KEYC_MOUSE_KEY(DOUBLECLICK1),
249 	KEYC_MOUSE_KEY(DOUBLECLICK2),
250 	KEYC_MOUSE_KEY(DOUBLECLICK3),
251 	KEYC_MOUSE_KEY(DOUBLECLICK6),
252 	KEYC_MOUSE_KEY(DOUBLECLICK7),
253 	KEYC_MOUSE_KEY(DOUBLECLICK8),
254 	KEYC_MOUSE_KEY(DOUBLECLICK9),
255 	KEYC_MOUSE_KEY(DOUBLECLICK10),
256 	KEYC_MOUSE_KEY(DOUBLECLICK11),
257 	KEYC_MOUSE_KEY(TRIPLECLICK1),
258 	KEYC_MOUSE_KEY(TRIPLECLICK2),
259 	KEYC_MOUSE_KEY(TRIPLECLICK3),
260 	KEYC_MOUSE_KEY(TRIPLECLICK6),
261 	KEYC_MOUSE_KEY(TRIPLECLICK7),
262 	KEYC_MOUSE_KEY(TRIPLECLICK8),
263 	KEYC_MOUSE_KEY(TRIPLECLICK9),
264 	KEYC_MOUSE_KEY(TRIPLECLICK10),
265 	KEYC_MOUSE_KEY(TRIPLECLICK11),
266 
267 	/* Backspace key. */
268 	KEYC_BSPACE,
269 
270 	/* Function keys. */
271 	KEYC_F1,
272 	KEYC_F2,
273 	KEYC_F3,
274 	KEYC_F4,
275 	KEYC_F5,
276 	KEYC_F6,
277 	KEYC_F7,
278 	KEYC_F8,
279 	KEYC_F9,
280 	KEYC_F10,
281 	KEYC_F11,
282 	KEYC_F12,
283 	KEYC_IC,
284 	KEYC_DC,
285 	KEYC_HOME,
286 	KEYC_END,
287 	KEYC_NPAGE,
288 	KEYC_PPAGE,
289 	KEYC_BTAB,
290 
291 	/* Arrow keys. */
292 	KEYC_UP,
293 	KEYC_DOWN,
294 	KEYC_LEFT,
295 	KEYC_RIGHT,
296 
297 	/* Numeric keypad. */
298 	KEYC_KP_SLASH,
299 	KEYC_KP_STAR,
300 	KEYC_KP_MINUS,
301 	KEYC_KP_SEVEN,
302 	KEYC_KP_EIGHT,
303 	KEYC_KP_NINE,
304 	KEYC_KP_PLUS,
305 	KEYC_KP_FOUR,
306 	KEYC_KP_FIVE,
307 	KEYC_KP_SIX,
308 	KEYC_KP_ONE,
309 	KEYC_KP_TWO,
310 	KEYC_KP_THREE,
311 	KEYC_KP_ENTER,
312 	KEYC_KP_ZERO,
313 	KEYC_KP_PERIOD,
314 
315 	/* End of special keys. */
316 	KEYC_BASE_END
317 };
318 
319 /* Termcap codes. */
320 enum tty_code_code {
321 	TTYC_ACSC,
322 	TTYC_AM,
323 	TTYC_AX,
324 	TTYC_BCE,
325 	TTYC_BEL,
326 	TTYC_BIDI,
327 	TTYC_BLINK,
328 	TTYC_BOLD,
329 	TTYC_CIVIS,
330 	TTYC_CLEAR,
331 	TTYC_CLMG,
332 	TTYC_CMG,
333 	TTYC_CNORM,
334 	TTYC_COLORS,
335 	TTYC_CR,
336 	TTYC_CS,
337 	TTYC_CSR,
338 	TTYC_CUB,
339 	TTYC_CUB1,
340 	TTYC_CUD,
341 	TTYC_CUD1,
342 	TTYC_CUF,
343 	TTYC_CUF1,
344 	TTYC_CUP,
345 	TTYC_CUU,
346 	TTYC_CUU1,
347 	TTYC_CVVIS,
348 	TTYC_DCH,
349 	TTYC_DCH1,
350 	TTYC_DIM,
351 	TTYC_DL,
352 	TTYC_DL1,
353 	TTYC_DSBP,
354 	TTYC_DSEKS,
355 	TTYC_DSFCS,
356 	TTYC_DSMG,
357 	TTYC_E3,
358 	TTYC_ECH,
359 	TTYC_ED,
360 	TTYC_EL,
361 	TTYC_EL1,
362 	TTYC_ENACS,
363 	TTYC_ENBP,
364 	TTYC_ENEKS,
365 	TTYC_ENFCS,
366 	TTYC_ENMG,
367 	TTYC_FSL,
368 	TTYC_HOME,
369 	TTYC_HPA,
370 	TTYC_ICH,
371 	TTYC_ICH1,
372 	TTYC_IL,
373 	TTYC_IL1,
374 	TTYC_INDN,
375 	TTYC_INVIS,
376 	TTYC_KCBT,
377 	TTYC_KCUB1,
378 	TTYC_KCUD1,
379 	TTYC_KCUF1,
380 	TTYC_KCUU1,
381 	TTYC_KDC2,
382 	TTYC_KDC3,
383 	TTYC_KDC4,
384 	TTYC_KDC5,
385 	TTYC_KDC6,
386 	TTYC_KDC7,
387 	TTYC_KDCH1,
388 	TTYC_KDN2,
389 	TTYC_KDN3,
390 	TTYC_KDN4,
391 	TTYC_KDN5,
392 	TTYC_KDN6,
393 	TTYC_KDN7,
394 	TTYC_KEND,
395 	TTYC_KEND2,
396 	TTYC_KEND3,
397 	TTYC_KEND4,
398 	TTYC_KEND5,
399 	TTYC_KEND6,
400 	TTYC_KEND7,
401 	TTYC_KF1,
402 	TTYC_KF10,
403 	TTYC_KF11,
404 	TTYC_KF12,
405 	TTYC_KF13,
406 	TTYC_KF14,
407 	TTYC_KF15,
408 	TTYC_KF16,
409 	TTYC_KF17,
410 	TTYC_KF18,
411 	TTYC_KF19,
412 	TTYC_KF2,
413 	TTYC_KF20,
414 	TTYC_KF21,
415 	TTYC_KF22,
416 	TTYC_KF23,
417 	TTYC_KF24,
418 	TTYC_KF25,
419 	TTYC_KF26,
420 	TTYC_KF27,
421 	TTYC_KF28,
422 	TTYC_KF29,
423 	TTYC_KF3,
424 	TTYC_KF30,
425 	TTYC_KF31,
426 	TTYC_KF32,
427 	TTYC_KF33,
428 	TTYC_KF34,
429 	TTYC_KF35,
430 	TTYC_KF36,
431 	TTYC_KF37,
432 	TTYC_KF38,
433 	TTYC_KF39,
434 	TTYC_KF4,
435 	TTYC_KF40,
436 	TTYC_KF41,
437 	TTYC_KF42,
438 	TTYC_KF43,
439 	TTYC_KF44,
440 	TTYC_KF45,
441 	TTYC_KF46,
442 	TTYC_KF47,
443 	TTYC_KF48,
444 	TTYC_KF49,
445 	TTYC_KF5,
446 	TTYC_KF50,
447 	TTYC_KF51,
448 	TTYC_KF52,
449 	TTYC_KF53,
450 	TTYC_KF54,
451 	TTYC_KF55,
452 	TTYC_KF56,
453 	TTYC_KF57,
454 	TTYC_KF58,
455 	TTYC_KF59,
456 	TTYC_KF6,
457 	TTYC_KF60,
458 	TTYC_KF61,
459 	TTYC_KF62,
460 	TTYC_KF63,
461 	TTYC_KF7,
462 	TTYC_KF8,
463 	TTYC_KF9,
464 	TTYC_KHOM2,
465 	TTYC_KHOM3,
466 	TTYC_KHOM4,
467 	TTYC_KHOM5,
468 	TTYC_KHOM6,
469 	TTYC_KHOM7,
470 	TTYC_KHOME,
471 	TTYC_KIC2,
472 	TTYC_KIC3,
473 	TTYC_KIC4,
474 	TTYC_KIC5,
475 	TTYC_KIC6,
476 	TTYC_KIC7,
477 	TTYC_KICH1,
478 	TTYC_KIND,
479 	TTYC_KLFT2,
480 	TTYC_KLFT3,
481 	TTYC_KLFT4,
482 	TTYC_KLFT5,
483 	TTYC_KLFT6,
484 	TTYC_KLFT7,
485 	TTYC_KMOUS,
486 	TTYC_KNP,
487 	TTYC_KNXT2,
488 	TTYC_KNXT3,
489 	TTYC_KNXT4,
490 	TTYC_KNXT5,
491 	TTYC_KNXT6,
492 	TTYC_KNXT7,
493 	TTYC_KPP,
494 	TTYC_KPRV2,
495 	TTYC_KPRV3,
496 	TTYC_KPRV4,
497 	TTYC_KPRV5,
498 	TTYC_KPRV6,
499 	TTYC_KPRV7,
500 	TTYC_KRI,
501 	TTYC_KRIT2,
502 	TTYC_KRIT3,
503 	TTYC_KRIT4,
504 	TTYC_KRIT5,
505 	TTYC_KRIT6,
506 	TTYC_KRIT7,
507 	TTYC_KUP2,
508 	TTYC_KUP3,
509 	TTYC_KUP4,
510 	TTYC_KUP5,
511 	TTYC_KUP6,
512 	TTYC_KUP7,
513 	TTYC_MS,
514 	TTYC_OL,
515 	TTYC_OP,
516 	TTYC_RECT,
517 	TTYC_REV,
518 	TTYC_RGB,
519 	TTYC_RI,
520 	TTYC_RIN,
521 	TTYC_RMACS,
522 	TTYC_RMCUP,
523 	TTYC_RMKX,
524 	TTYC_SE,
525 	TTYC_SETAB,
526 	TTYC_SETAF,
527 	TTYC_SETAL,
528 	TTYC_SETRGBB,
529 	TTYC_SETRGBF,
530 	TTYC_SETULC,
531 	TTYC_SGR0,
532 	TTYC_SITM,
533 	TTYC_SMACS,
534 	TTYC_SMCUP,
535 	TTYC_SMKX,
536 	TTYC_SMOL,
537 	TTYC_SMSO,
538 	TTYC_SMUL,
539 	TTYC_SMULX,
540 	TTYC_SMXX,
541 	TTYC_SS,
542 	TTYC_SWD,
543 	TTYC_SYNC,
544 	TTYC_TC,
545 	TTYC_TSL,
546 	TTYC_U8,
547 	TTYC_VPA,
548 	TTYC_XT
549 };
550 
551 /* Character classes. */
552 #define WHITESPACE " "
553 
554 /* Mode keys. */
555 #define MODEKEY_EMACS 0
556 #define MODEKEY_VI 1
557 
558 /* Modes. */
559 #define MODE_CURSOR 0x1
560 #define MODE_INSERT 0x2
561 #define MODE_KCURSOR 0x4
562 #define MODE_KKEYPAD 0x8
563 #define MODE_WRAP 0x10
564 #define MODE_MOUSE_STANDARD 0x20
565 #define MODE_MOUSE_BUTTON 0x40
566 #define MODE_CURSOR_BLINKING 0x80
567 #define MODE_MOUSE_UTF8 0x100
568 #define MODE_MOUSE_SGR 0x200
569 #define MODE_BRACKETPASTE 0x400
570 #define MODE_FOCUSON 0x800
571 #define MODE_MOUSE_ALL 0x1000
572 #define MODE_ORIGIN 0x2000
573 #define MODE_CRLF 0x4000
574 #define MODE_KEXTENDED 0x8000
575 #define MODE_CURSOR_VERY_VISIBLE 0x10000
576 #define MODE_CURSOR_BLINKING_SET 0x20000
577 
578 #define ALL_MODES 0xffffff
579 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
580 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
581 #define CURSOR_MODES (MODE_CURSOR|MODE_CURSOR_BLINKING|MODE_CURSOR_VERY_VISIBLE)
582 
583 /* A single UTF-8 character. */
584 typedef u_int utf8_char;
585 
586 /*
587  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
588  * characters as well. It can't be more than 32 bytes without changes to how
589  * characters are stored.
590  */
591 #define UTF8_SIZE 21
592 struct utf8_data {
593 	u_char	data[UTF8_SIZE];
594 
595 	u_char	have;
596 	u_char	size;
597 
598 	u_char	width;	/* 0xff if invalid */
599 };
600 enum utf8_state {
601 	UTF8_MORE,
602 	UTF8_DONE,
603 	UTF8_ERROR
604 };
605 
606 /* Colour flags. */
607 #define COLOUR_FLAG_256 0x01000000
608 #define COLOUR_FLAG_RGB 0x02000000
609 
610 /* Special colours. */
611 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
612 
613 /* Replacement palette. */
614 struct colour_palette {
615 	int	 fg;
616 	int	 bg;
617 
618 	int	*palette;
619 	int	*default_palette;
620 };
621 
622 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
623 #define GRID_ATTR_BRIGHT 0x1
624 #define GRID_ATTR_DIM 0x2
625 #define GRID_ATTR_UNDERSCORE 0x4
626 #define GRID_ATTR_BLINK 0x8
627 #define GRID_ATTR_REVERSE 0x10
628 #define GRID_ATTR_HIDDEN 0x20
629 #define GRID_ATTR_ITALICS 0x40
630 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
631 #define GRID_ATTR_STRIKETHROUGH 0x100
632 #define GRID_ATTR_UNDERSCORE_2 0x200
633 #define GRID_ATTR_UNDERSCORE_3 0x400
634 #define GRID_ATTR_UNDERSCORE_4 0x800
635 #define GRID_ATTR_UNDERSCORE_5 0x1000
636 #define GRID_ATTR_OVERLINE 0x2000
637 
638 /* All underscore attributes. */
639 #define GRID_ATTR_ALL_UNDERSCORE \
640 	(GRID_ATTR_UNDERSCORE|	 \
641 	 GRID_ATTR_UNDERSCORE_2| \
642 	 GRID_ATTR_UNDERSCORE_3| \
643 	 GRID_ATTR_UNDERSCORE_4| \
644 	 GRID_ATTR_UNDERSCORE_5)
645 
646 /* Grid flags. */
647 #define GRID_FLAG_FG256 0x1
648 #define GRID_FLAG_BG256 0x2
649 #define GRID_FLAG_PADDING 0x4
650 #define GRID_FLAG_EXTENDED 0x8
651 #define GRID_FLAG_SELECTED 0x10
652 #define GRID_FLAG_NOPALETTE 0x20
653 #define GRID_FLAG_CLEARED 0x40
654 
655 /* Grid line flags. */
656 #define GRID_LINE_WRAPPED 0x1
657 #define GRID_LINE_EXTENDED 0x2
658 #define GRID_LINE_DEAD 0x4
659 
660 #define CELL_INSIDE 0
661 #define CELL_TOPBOTTOM 1
662 #define CELL_LEFTRIGHT 2
663 #define CELL_TOPLEFT 3
664 #define CELL_TOPRIGHT 4
665 #define CELL_BOTTOMLEFT 5
666 #define CELL_BOTTOMRIGHT 6
667 #define CELL_TOPJOIN 7
668 #define CELL_BOTTOMJOIN 8
669 #define CELL_LEFTJOIN 9
670 #define CELL_RIGHTJOIN 10
671 #define CELL_JOIN 11
672 #define CELL_OUTSIDE 12
673 
674 #define CELL_BORDERS " xqlkmjwvtun~"
675 #define SIMPLE_BORDERS " |-+++++++++."
676 #define PADDED_BORDERS "             "
677 
678 /* Grid cell data. */
679 struct grid_cell {
680 	struct utf8_data	data;
681 	u_short			attr;
682 	u_char			flags;
683 	int			fg;
684 	int			bg;
685 	int			us;
686 };
687 
688 /* Grid extended cell entry. */
689 struct grid_extd_entry {
690 	utf8_char		data;
691 	u_short			attr;
692 	u_char			flags;
693 	int			fg;
694 	int			bg;
695 	int			us;
696 } __packed;
697 
698 /* Grid cell entry. */
699 struct grid_cell_entry {
700 	u_char			flags;
701 	union {
702 		u_int		offset;
703 		struct {
704 			u_char	attr;
705 			u_char	fg;
706 			u_char	bg;
707 			u_char	data;
708 		} data;
709 	};
710 } __packed;
711 
712 /* Grid line. */
713 struct grid_line {
714 	struct grid_cell_entry	*celldata;
715 	u_int			 cellused;
716 	u_int			 cellsize;
717 
718 	struct grid_extd_entry	*extddata;
719 	u_int			 extdsize;
720 
721 	int			 flags;
722 };
723 
724 /* Entire grid of cells. */
725 struct grid {
726 	int			 flags;
727 #define GRID_HISTORY 0x1 /* scroll lines into history */
728 
729 	u_int			 sx;
730 	u_int			 sy;
731 
732 	u_int			 hscrolled;
733 	u_int			 hsize;
734 	u_int			 hlimit;
735 
736 	struct grid_line	*linedata;
737 };
738 
739 /* Virtual cursor in a grid. */
740 struct grid_reader {
741 	struct grid	*gd;
742 	u_int		 cx;
743 	u_int		 cy;
744 };
745 
746 /* Style alignment. */
747 enum style_align {
748 	STYLE_ALIGN_DEFAULT,
749 	STYLE_ALIGN_LEFT,
750 	STYLE_ALIGN_CENTRE,
751 	STYLE_ALIGN_RIGHT,
752 	STYLE_ALIGN_ABSOLUTE_CENTRE
753 };
754 
755 /* Style list. */
756 enum style_list {
757 	STYLE_LIST_OFF,
758 	STYLE_LIST_ON,
759 	STYLE_LIST_FOCUS,
760 	STYLE_LIST_LEFT_MARKER,
761 	STYLE_LIST_RIGHT_MARKER,
762 };
763 
764 /* Style range. */
765 enum style_range_type {
766 	STYLE_RANGE_NONE,
767 	STYLE_RANGE_LEFT,
768 	STYLE_RANGE_RIGHT,
769 	STYLE_RANGE_WINDOW
770 };
771 struct style_range {
772 	enum style_range_type	 type;
773 	u_int			 argument;
774 
775 	u_int			 start;
776 	u_int			 end; /* not included */
777 
778 	TAILQ_ENTRY(style_range) entry;
779 };
780 TAILQ_HEAD(style_ranges, style_range);
781 
782 /* Style default. */
783 enum style_default_type {
784 	STYLE_DEFAULT_BASE,
785 	STYLE_DEFAULT_PUSH,
786 	STYLE_DEFAULT_POP
787 };
788 
789 /* Style option. */
790 struct style {
791 	struct grid_cell	gc;
792 	int			ignore;
793 
794 	int			fill;
795 	enum style_align	align;
796 	enum style_list		list;
797 
798 	enum style_range_type	range_type;
799 	u_int			range_argument;
800 
801 	enum style_default_type	default_type;
802 };
803 
804 /* Cursor style. */
805 enum screen_cursor_style {
806 	SCREEN_CURSOR_DEFAULT,
807 	SCREEN_CURSOR_BLOCK,
808 	SCREEN_CURSOR_UNDERLINE,
809 	SCREEN_CURSOR_BAR
810 };
811 
812 /* Virtual screen. */
813 struct screen_sel;
814 struct screen_titles;
815 struct screen {
816 	char				*title;
817 	char				*path;
818 	struct screen_titles		*titles;
819 
820 	struct grid			*grid;	  /* grid data */
821 
822 	u_int				 cx;	  /* cursor x */
823 	u_int				 cy;	  /* cursor y */
824 
825 	enum screen_cursor_style	 cstyle;  /* cursor style */
826 	enum screen_cursor_style	 default_cstyle;
827 	int				 ccolour; /* cursor colour */
828 	int				 default_ccolour;
829 
830 	u_int				 rupper;  /* scroll region top */
831 	u_int				 rlower;  /* scroll region bottom */
832 
833 	int				 mode;
834 	int				 default_mode;
835 
836 	u_int				 saved_cx;
837 	u_int				 saved_cy;
838 	struct grid			*saved_grid;
839 	struct grid_cell		 saved_cell;
840 	int				 saved_flags;
841 
842 	bitstr_t			*tabs;
843 	struct screen_sel		*sel;
844 
845 	struct screen_write_cline	*write_list;
846 };
847 
848 /* Screen write context. */
849 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
850     struct tty_ctx *);
851 struct screen_write_ctx {
852 	struct window_pane		*wp;
853 	struct screen			*s;
854 
855 	int				 flags;
856 #define SCREEN_WRITE_SYNC 0x1
857 #define SCREEN_WRITE_ZWJ 0x2
858 
859 	screen_write_init_ctx_cb	 init_ctx_cb;
860 	void				*arg;
861 
862 	struct screen_write_citem	*item;
863 	u_int				 scrolled;
864 	u_int				 bg;
865 };
866 
867 /* Box border lines option. */
868 enum box_lines {
869 	BOX_LINES_DEFAULT = -1,
870 	BOX_LINES_SINGLE,
871 	BOX_LINES_DOUBLE,
872 	BOX_LINES_HEAVY,
873 	BOX_LINES_SIMPLE,
874 	BOX_LINES_ROUNDED,
875 	BOX_LINES_PADDED,
876 	BOX_LINES_NONE
877 };
878 
879 /* Pane border lines option. */
880 enum pane_lines {
881 	PANE_LINES_SINGLE,
882 	PANE_LINES_DOUBLE,
883 	PANE_LINES_HEAVY,
884 	PANE_LINES_SIMPLE,
885 	PANE_LINES_NUMBER
886 };
887 
888 /* Pane border indicator option. */
889 #define PANE_BORDER_OFF 0
890 #define PANE_BORDER_COLOUR 1
891 #define PANE_BORDER_ARROWS 2
892 #define PANE_BORDER_BOTH 3
893 
894 /* Screen redraw context. */
895 struct screen_redraw_ctx {
896 	struct client	*c;
897 
898 	u_int		 statuslines;
899 	int		 statustop;
900 
901 	int		 pane_status;
902 	enum pane_lines	 pane_lines;
903 
904 	struct grid_cell no_pane_gc;
905 	int		 no_pane_gc_set;
906 
907 	u_int		 sx;
908 	u_int		 sy;
909 	u_int		 ox;
910 	u_int		 oy;
911 };
912 
913 /* Screen size. */
914 #define screen_size_x(s) ((s)->grid->sx)
915 #define screen_size_y(s) ((s)->grid->sy)
916 #define screen_hsize(s) ((s)->grid->hsize)
917 #define screen_hlimit(s) ((s)->grid->hlimit)
918 
919 /* Menu. */
920 struct menu_item {
921 	const char	*name;
922 	key_code	 key;
923 	const char	*command;
924 };
925 struct menu {
926 	const char		*title;
927 	struct menu_item	*items;
928 	u_int			 count;
929 	u_int			 width;
930 };
931 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
932 
933 /*
934  * Window mode. Windows can be in several modes and this is used to call the
935  * right function to handle input and output.
936  */
937 struct window_mode_entry;
938 struct window_mode {
939 	const char	*name;
940 	const char	*default_format;
941 
942 	struct screen	*(*init)(struct window_mode_entry *,
943 			     struct cmd_find_state *, struct args *);
944 	void		 (*free)(struct window_mode_entry *);
945 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
946 	void		 (*update)(struct window_mode_entry *);
947 	void		 (*key)(struct window_mode_entry *, struct client *,
948 			     struct session *, struct winlink *, key_code,
949 			     struct mouse_event *);
950 
951 	const char	*(*key_table)(struct window_mode_entry *);
952 	void		 (*command)(struct window_mode_entry *, struct client *,
953 			     struct session *, struct winlink *, struct args *,
954 			     struct mouse_event *);
955 	void		 (*formats)(struct window_mode_entry *,
956 			     struct format_tree *);
957 };
958 
959 /* Active window mode. */
960 struct window_mode_entry {
961 	struct window_pane		*wp;
962 	struct window_pane		*swp;
963 
964 	const struct window_mode	*mode;
965 	void				*data;
966 
967 	struct screen			*screen;
968 	u_int				 prefix;
969 
970 	TAILQ_ENTRY(window_mode_entry)	 entry;
971 };
972 
973 /* Offsets into pane buffer. */
974 struct window_pane_offset {
975 	size_t	used;
976 };
977 
978 /* Queued pane resize. */
979 struct window_pane_resize {
980 	u_int				sx;
981 	u_int				sy;
982 
983 	u_int				osx;
984 	u_int				osy;
985 
986 	TAILQ_ENTRY(window_pane_resize)	entry;
987 };
988 TAILQ_HEAD(window_pane_resizes, window_pane_resize);
989 
990 /* Child window structure. */
991 struct window_pane {
992 	u_int		 id;
993 	u_int		 active_point;
994 
995 	struct window	*window;
996 	struct options	*options;
997 
998 	struct layout_cell *layout_cell;
999 	struct layout_cell *saved_layout_cell;
1000 
1001 	u_int		 sx;
1002 	u_int		 sy;
1003 
1004 	u_int		 xoff;
1005 	u_int		 yoff;
1006 
1007 	int		 flags;
1008 #define PANE_REDRAW 0x1
1009 #define PANE_DROP 0x2
1010 #define PANE_FOCUSED 0x4
1011 /* 0x8 unused */
1012 /* 0x10 unused */
1013 /* 0x20 unused */
1014 #define PANE_INPUTOFF 0x40
1015 #define PANE_CHANGED 0x80
1016 #define PANE_EXITED 0x100
1017 #define PANE_STATUSREADY 0x200
1018 #define PANE_STATUSDRAWN 0x400
1019 #define PANE_EMPTY 0x800
1020 #define PANE_STYLECHANGED 0x1000
1021 
1022 	int		 argc;
1023 	char	       **argv;
1024 	char		*shell;
1025 	char		*cwd;
1026 
1027 	pid_t		 pid;
1028 	char		 tty[TTY_NAME_MAX];
1029 	int		 status;
1030 	struct timeval	 dead_time;
1031 
1032 	int		 fd;
1033 	struct bufferevent *event;
1034 
1035 	struct window_pane_offset offset;
1036 	size_t		 base_offset;
1037 
1038 	struct window_pane_resizes resize_queue;
1039 	struct event	 resize_timer;
1040 
1041 	struct input_ctx *ictx;
1042 
1043 	struct grid_cell cached_gc;
1044 	struct grid_cell cached_active_gc;
1045 	struct colour_palette palette;
1046 
1047 	int		 pipe_fd;
1048 	struct bufferevent *pipe_event;
1049 	struct window_pane_offset pipe_offset;
1050 
1051 	struct screen	*screen;
1052 	struct screen	 base;
1053 
1054 	struct screen	 status_screen;
1055 	size_t		 status_size;
1056 
1057 	TAILQ_HEAD(, window_mode_entry) modes;
1058 
1059 	char		*searchstr;
1060 	int		 searchregex;
1061 
1062 	int		 border_gc_set;
1063 	struct grid_cell border_gc;
1064 
1065 	TAILQ_ENTRY(window_pane) entry;
1066 	RB_ENTRY(window_pane) tree_entry;
1067 };
1068 TAILQ_HEAD(window_panes, window_pane);
1069 RB_HEAD(window_pane_tree, window_pane);
1070 
1071 /* Window structure. */
1072 struct window {
1073 	u_int			 id;
1074 	void			*latest;
1075 
1076 	char			*name;
1077 	struct event		 name_event;
1078 	struct timeval		 name_time;
1079 
1080 	struct event		 alerts_timer;
1081 	struct event		 offset_timer;
1082 
1083 	struct timeval		 activity_time;
1084 
1085 	struct window_pane	*active;
1086 	struct window_pane	*last;
1087 	struct window_panes	 panes;
1088 
1089 	int			 lastlayout;
1090 	struct layout_cell	*layout_root;
1091 	struct layout_cell	*saved_layout_root;
1092 	char			*old_layout;
1093 
1094 	u_int			 sx;
1095 	u_int			 sy;
1096 	u_int			 manual_sx;
1097 	u_int			 manual_sy;
1098 	u_int			 xpixel;
1099 	u_int			 ypixel;
1100 
1101 	u_int			 new_sx;
1102 	u_int			 new_sy;
1103 	u_int			 new_xpixel;
1104 	u_int			 new_ypixel;
1105 
1106 	struct utf8_data	*fill_character;
1107 	int			 flags;
1108 #define WINDOW_BELL 0x1
1109 #define WINDOW_ACTIVITY 0x2
1110 #define WINDOW_SILENCE 0x4
1111 #define WINDOW_ZOOMED 0x8
1112 #define WINDOW_WASZOOMED 0x10
1113 #define WINDOW_RESIZE 0x20
1114 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1115 
1116 	int			 alerts_queued;
1117 	TAILQ_ENTRY(window)	 alerts_entry;
1118 
1119 	struct options		*options;
1120 
1121 	u_int			 references;
1122 	TAILQ_HEAD(, winlink)	 winlinks;
1123 
1124 	RB_ENTRY(window)	 entry;
1125 };
1126 RB_HEAD(windows, window);
1127 
1128 /* Entry on local window list. */
1129 struct winlink {
1130 	int		 idx;
1131 	struct session	*session;
1132 	struct window	*window;
1133 
1134 	int		 flags;
1135 #define WINLINK_BELL 0x1
1136 #define WINLINK_ACTIVITY 0x2
1137 #define WINLINK_SILENCE 0x4
1138 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1139 
1140 	RB_ENTRY(winlink) entry;
1141 	TAILQ_ENTRY(winlink) wentry;
1142 	TAILQ_ENTRY(winlink) sentry;
1143 };
1144 RB_HEAD(winlinks, winlink);
1145 TAILQ_HEAD(winlink_stack, winlink);
1146 
1147 /* Window size option. */
1148 #define WINDOW_SIZE_LARGEST 0
1149 #define WINDOW_SIZE_SMALLEST 1
1150 #define WINDOW_SIZE_MANUAL 2
1151 #define WINDOW_SIZE_LATEST 3
1152 
1153 /* Pane border status option. */
1154 #define PANE_STATUS_OFF 0
1155 #define PANE_STATUS_TOP 1
1156 #define PANE_STATUS_BOTTOM 2
1157 
1158 /* Layout direction. */
1159 enum layout_type {
1160 	LAYOUT_LEFTRIGHT,
1161 	LAYOUT_TOPBOTTOM,
1162 	LAYOUT_WINDOWPANE
1163 };
1164 
1165 /* Layout cells queue. */
1166 TAILQ_HEAD(layout_cells, layout_cell);
1167 
1168 /* Layout cell. */
1169 struct layout_cell {
1170 	enum layout_type type;
1171 
1172 	struct layout_cell *parent;
1173 
1174 	u_int		 sx;
1175 	u_int		 sy;
1176 
1177 	u_int		 xoff;
1178 	u_int		 yoff;
1179 
1180 	struct window_pane *wp;
1181 	struct layout_cells cells;
1182 
1183 	TAILQ_ENTRY(layout_cell) entry;
1184 };
1185 
1186 /* Environment variable. */
1187 struct environ_entry {
1188 	char		*name;
1189 	char		*value;
1190 
1191 	int		 flags;
1192 #define ENVIRON_HIDDEN 0x1
1193 
1194 	RB_ENTRY(environ_entry) entry;
1195 };
1196 
1197 /* Client session. */
1198 struct session_group {
1199 	const char		*name;
1200 	TAILQ_HEAD(, session)	 sessions;
1201 
1202 	RB_ENTRY(session_group)	 entry;
1203 };
1204 RB_HEAD(session_groups, session_group);
1205 
1206 struct session {
1207 	u_int		 id;
1208 
1209 	char		*name;
1210 	const char	*cwd;
1211 
1212 	struct timeval	 creation_time;
1213 	struct timeval	 last_attached_time;
1214 	struct timeval	 activity_time;
1215 	struct timeval	 last_activity_time;
1216 
1217 	struct event	 lock_timer;
1218 
1219 	struct winlink	*curw;
1220 	struct winlink_stack lastw;
1221 	struct winlinks	 windows;
1222 
1223 	int		 statusat;
1224 	u_int		 statuslines;
1225 
1226 	struct options	*options;
1227 
1228 #define SESSION_PASTING 0x1
1229 #define SESSION_ALERTED 0x2
1230 	int		 flags;
1231 
1232 	u_int		 attached;
1233 
1234 	struct termios	*tio;
1235 
1236 	struct environ	*environ;
1237 
1238 	int		 references;
1239 
1240 	TAILQ_ENTRY(session) gentry;
1241 	RB_ENTRY(session)    entry;
1242 };
1243 RB_HEAD(sessions, session);
1244 
1245 /* Mouse button masks. */
1246 #define MOUSE_MASK_BUTTONS 195
1247 #define MOUSE_MASK_SHIFT 4
1248 #define MOUSE_MASK_META 8
1249 #define MOUSE_MASK_CTRL 16
1250 #define MOUSE_MASK_DRAG 32
1251 #define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
1252 
1253 /* Mouse wheel type. */
1254 #define MOUSE_WHEEL_UP 64
1255 #define MOUSE_WHEEL_DOWN 65
1256 
1257 /* Mouse button type. */
1258 #define MOUSE_BUTTON_1 0
1259 #define MOUSE_BUTTON_2 1
1260 #define MOUSE_BUTTON_3 2
1261 #define MOUSE_BUTTON_6 66
1262 #define MOUSE_BUTTON_7 67
1263 #define MOUSE_BUTTON_8 128
1264 #define MOUSE_BUTTON_9 129
1265 #define MOUSE_BUTTON_10 130
1266 #define MOUSE_BUTTON_11 131
1267 
1268 /* Mouse helpers. */
1269 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1270 #define MOUSE_WHEEL(b) \
1271 	(((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_UP || \
1272 	 ((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_DOWN)
1273 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1274 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1275 
1276 /* Mouse input. */
1277 struct mouse_event {
1278 	int		valid;
1279 	int		ignore;
1280 
1281 	key_code	key;
1282 
1283 	int		statusat;
1284 	u_int		statuslines;
1285 
1286 	u_int		x;
1287 	u_int		y;
1288 	u_int		b;
1289 
1290 	u_int		lx;
1291 	u_int		ly;
1292 	u_int		lb;
1293 
1294 	u_int		ox;
1295 	u_int		oy;
1296 
1297 	int		s;
1298 	int		w;
1299 	int		wp;
1300 
1301 	u_int		sgr_type;
1302 	u_int		sgr_b;
1303 };
1304 
1305 /* Key event. */
1306 struct key_event {
1307 	key_code		key;
1308 	struct mouse_event	m;
1309 };
1310 
1311 /* Terminal definition. */
1312 struct tty_term {
1313 	char		*name;
1314 	struct tty	*tty;
1315 	int		 features;
1316 
1317 	char		 acs[UCHAR_MAX + 1][2];
1318 
1319 	struct tty_code	*codes;
1320 
1321 #define TERM_256COLOURS 0x1
1322 #define TERM_NOAM 0x2
1323 #define TERM_DECSLRM 0x4
1324 #define TERM_DECFRA 0x8
1325 #define TERM_RGBCOLOURS 0x10
1326 #define TERM_VT100LIKE 0x20
1327 	int		 flags;
1328 
1329 	LIST_ENTRY(tty_term) entry;
1330 };
1331 LIST_HEAD(tty_terms, tty_term);
1332 
1333 /* Client terminal. */
1334 struct tty {
1335 	struct client	*client;
1336 	struct event	 start_timer;
1337 	struct event	 clipboard_timer;
1338 
1339 	u_int		 sx;
1340 	u_int		 sy;
1341 	u_int		 xpixel;
1342 	u_int		 ypixel;
1343 
1344 	u_int		 cx;
1345 	u_int		 cy;
1346 	enum screen_cursor_style cstyle;
1347 	int		 ccolour;
1348 
1349 	int		 oflag;
1350 	u_int		 oox;
1351 	u_int		 ooy;
1352 	u_int		 osx;
1353 	u_int		 osy;
1354 
1355 	int		 mode;
1356 
1357 	u_int		 rlower;
1358 	u_int		 rupper;
1359 
1360 	u_int		 rleft;
1361 	u_int		 rright;
1362 
1363 	struct event	 event_in;
1364 	struct evbuffer	*in;
1365 	struct event	 event_out;
1366 	struct evbuffer	*out;
1367 	struct event	 timer;
1368 	size_t		 discarded;
1369 
1370 	struct termios	 tio;
1371 
1372 	struct grid_cell cell;
1373 	struct grid_cell last_cell;
1374 
1375 #define TTY_NOCURSOR 0x1
1376 #define TTY_FREEZE 0x2
1377 #define TTY_TIMER 0x4
1378 #define TTY_NOBLOCK 0x8
1379 #define TTY_STARTED 0x10
1380 #define TTY_OPENED 0x20
1381 #define TTY_OSC52QUERY 0x40
1382 #define TTY_BLOCK 0x80
1383 #define TTY_HAVEDA 0x100
1384 #define TTY_HAVEXDA 0x200
1385 #define TTY_SYNCING 0x400
1386 	int		 flags;
1387 
1388 	struct tty_term	*term;
1389 
1390 	u_int		 mouse_last_x;
1391 	u_int		 mouse_last_y;
1392 	u_int		 mouse_last_b;
1393 	int		 mouse_drag_flag;
1394 	void		(*mouse_drag_update)(struct client *,
1395 			    struct mouse_event *);
1396 	void		(*mouse_drag_release)(struct client *,
1397 			    struct mouse_event *);
1398 
1399 	struct event	 key_timer;
1400 	struct tty_key	*key_tree;
1401 };
1402 
1403 /* Terminal command context. */
1404 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1405 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1406 struct tty_ctx {
1407 	struct screen		*s;
1408 
1409 	tty_ctx_redraw_cb	 redraw_cb;
1410 	tty_ctx_set_client_cb	 set_client_cb;
1411 	void			*arg;
1412 
1413 	const struct grid_cell	*cell;
1414 	int			 wrapped;
1415 
1416 	u_int			 num;
1417 	void			*ptr;
1418 
1419 	/*
1420 	 * Cursor and region position before the screen was updated - this is
1421 	 * where the command should be applied; the values in the screen have
1422 	 * already been updated.
1423 	 */
1424 	u_int		 ocx;
1425 	u_int		 ocy;
1426 
1427 	u_int		 orupper;
1428 	u_int		 orlower;
1429 
1430 	/* Target region (usually pane) offset and size. */
1431 	u_int		 xoff;
1432 	u_int		 yoff;
1433 	u_int		 rxoff;
1434 	u_int		 ryoff;
1435 	u_int		 sx;
1436 	u_int		 sy;
1437 
1438 	/* The background colour used for clearing (erasing). */
1439 	u_int		 bg;
1440 
1441 	/* The default colours and palette. */
1442 	struct grid_cell defaults;
1443 	struct colour_palette *palette;
1444 
1445 	/* Containing region (usually window) offset and size. */
1446 	int		 bigger;
1447 	u_int		 wox;
1448 	u_int		 woy;
1449 	u_int		 wsx;
1450 	u_int		 wsy;
1451 };
1452 
1453 /* Saved message entry. */
1454 struct message_entry {
1455 	char				*msg;
1456 	u_int				 msg_num;
1457 	struct timeval			 msg_time;
1458 
1459 	TAILQ_ENTRY(message_entry)	 entry;
1460 };
1461 TAILQ_HEAD(message_list, message_entry);
1462 
1463 /* Argument type. */
1464 enum args_type {
1465 	ARGS_NONE,
1466 	ARGS_STRING,
1467 	ARGS_COMMANDS
1468 };
1469 
1470 /* Argument value. */
1471 struct args_value {
1472 	enum args_type		 type;
1473 	union {
1474 		char		*string;
1475 		struct cmd_list	*cmdlist;
1476 	};
1477 	char			*cached;
1478 	TAILQ_ENTRY(args_value)	 entry;
1479 };
1480 
1481 /* Arguments set. */
1482 struct args_entry;
1483 RB_HEAD(args_tree, args_entry);
1484 
1485 /* Arguments parsing type. */
1486 enum args_parse_type {
1487 	ARGS_PARSE_INVALID,
1488 	ARGS_PARSE_STRING,
1489 	ARGS_PARSE_COMMANDS_OR_STRING,
1490 	ARGS_PARSE_COMMANDS
1491 };
1492 
1493 /* Arguments parsing state. */
1494 typedef enum args_parse_type (*args_parse_cb)(struct args *, u_int, char **);
1495 struct args_parse {
1496 	const char	*template;
1497 	int		 lower;
1498 	int		 upper;
1499 	args_parse_cb	 cb;
1500 };
1501 
1502 /* Command find structures. */
1503 enum cmd_find_type {
1504 	CMD_FIND_PANE,
1505 	CMD_FIND_WINDOW,
1506 	CMD_FIND_SESSION,
1507 };
1508 struct cmd_find_state {
1509 	int			 flags;
1510 	struct cmd_find_state	*current;
1511 
1512 	struct session		*s;
1513 	struct winlink		*wl;
1514 	struct window		*w;
1515 	struct window_pane	*wp;
1516 	int			 idx;
1517 };
1518 
1519 /* Command find flags. */
1520 #define CMD_FIND_PREFER_UNATTACHED 0x1
1521 #define CMD_FIND_QUIET 0x2
1522 #define CMD_FIND_WINDOW_INDEX 0x4
1523 #define CMD_FIND_DEFAULT_MARKED 0x8
1524 #define CMD_FIND_EXACT_SESSION 0x10
1525 #define CMD_FIND_EXACT_WINDOW 0x20
1526 #define CMD_FIND_CANFAIL 0x40
1527 
1528 /* List of commands. */
1529 struct cmd_list {
1530 	int		 references;
1531 	u_int		 group;
1532 	struct cmds	*list;
1533 };
1534 
1535 /* Command return values. */
1536 enum cmd_retval {
1537 	CMD_RETURN_ERROR = -1,
1538 	CMD_RETURN_NORMAL = 0,
1539 	CMD_RETURN_WAIT,
1540 	CMD_RETURN_STOP
1541 };
1542 
1543 /* Command parse result. */
1544 enum cmd_parse_status {
1545 	CMD_PARSE_ERROR,
1546 	CMD_PARSE_SUCCESS
1547 };
1548 struct cmd_parse_result {
1549 	enum cmd_parse_status	 status;
1550 	struct cmd_list		*cmdlist;
1551 	char			*error;
1552 };
1553 struct cmd_parse_input {
1554 	int			 flags;
1555 #define CMD_PARSE_QUIET 0x1
1556 #define CMD_PARSE_PARSEONLY 0x2
1557 #define CMD_PARSE_NOALIAS 0x4
1558 #define CMD_PARSE_VERBOSE 0x8
1559 #define CMD_PARSE_ONEGROUP 0x10
1560 
1561 	const char		*file;
1562 	u_int			 line;
1563 
1564 	struct cmdq_item	*item;
1565 	struct client		*c;
1566 	struct cmd_find_state	 fs;
1567 };
1568 
1569 /* Command queue flags. */
1570 #define CMDQ_STATE_REPEAT 0x1
1571 #define CMDQ_STATE_CONTROL 0x2
1572 #define CMDQ_STATE_NOHOOKS 0x4
1573 
1574 /* Command queue callback. */
1575 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1576 
1577 /* Command definition flag. */
1578 struct cmd_entry_flag {
1579 	char			 flag;
1580 	enum cmd_find_type	 type;
1581 	int			 flags;
1582 };
1583 
1584 /* Command definition. */
1585 struct cmd_entry {
1586 	const char		*name;
1587 	const char		*alias;
1588 
1589 	struct args_parse	 args;
1590 	const char		*usage;
1591 
1592 	struct cmd_entry_flag	 source;
1593 	struct cmd_entry_flag	 target;
1594 
1595 #define CMD_STARTSERVER 0x1
1596 #define CMD_READONLY 0x2
1597 #define CMD_AFTERHOOK 0x4
1598 #define CMD_CLIENT_CFLAG 0x8
1599 #define CMD_CLIENT_TFLAG 0x10
1600 #define CMD_CLIENT_CANFAIL 0x20
1601 	int		 flags;
1602 
1603 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1604 };
1605 
1606 /* Status line. */
1607 #define STATUS_LINES_LIMIT 5
1608 struct status_line_entry {
1609 	char			*expanded;
1610 	struct style_ranges	 ranges;
1611 };
1612 struct status_line {
1613 	struct event		 timer;
1614 
1615 	struct screen		 screen;
1616 	struct screen		*active;
1617 	int			 references;
1618 
1619 	struct grid_cell	 style;
1620 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1621 };
1622 
1623 /* Prompt type. */
1624 #define PROMPT_NTYPES 4
1625 enum prompt_type {
1626 	PROMPT_TYPE_COMMAND,
1627 	PROMPT_TYPE_SEARCH,
1628 	PROMPT_TYPE_TARGET,
1629 	PROMPT_TYPE_WINDOW_TARGET,
1630 	PROMPT_TYPE_INVALID = 0xff
1631 };
1632 
1633 /* File in client. */
1634 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1635     struct evbuffer *, void *);
1636 struct client_file {
1637 	struct client			*c;
1638 	struct tmuxpeer			*peer;
1639 	struct client_files		*tree;
1640 	int				 references;
1641 	int				 stream;
1642 
1643 	char				*path;
1644 	struct evbuffer			*buffer;
1645 	struct bufferevent		*event;
1646 
1647 	int				 fd;
1648 	int				 error;
1649 	int				 closed;
1650 
1651 	client_file_cb			 cb;
1652 	void				*data;
1653 
1654 	RB_ENTRY(client_file)		 entry;
1655 };
1656 RB_HEAD(client_files, client_file);
1657 
1658 /* Client window. */
1659 struct client_window {
1660 	u_int			 window;
1661 	struct window_pane	*pane;
1662 
1663 	u_int			 sx;
1664 	u_int			 sy;
1665 
1666 	RB_ENTRY(client_window)	 entry;
1667 };
1668 RB_HEAD(client_windows, client_window);
1669 
1670 /* Visible areas not obstructed by overlays. */
1671 #define OVERLAY_MAX_RANGES 3
1672 struct overlay_ranges {
1673 	u_int	px[OVERLAY_MAX_RANGES];
1674 	u_int	nx[OVERLAY_MAX_RANGES];
1675 };
1676 
1677 /* Client connection. */
1678 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1679 typedef void (*prompt_free_cb)(void *);
1680 typedef void (*overlay_check_cb)(struct client*, void *, u_int, u_int, u_int,
1681 	    struct overlay_ranges *);
1682 typedef struct screen *(*overlay_mode_cb)(struct client *, void *, u_int *,
1683 	    u_int *);
1684 typedef void (*overlay_draw_cb)(struct client *, void *,
1685 	    struct screen_redraw_ctx *);
1686 typedef int (*overlay_key_cb)(struct client *, void *, struct key_event *);
1687 typedef void (*overlay_free_cb)(struct client *, void *);
1688 typedef void (*overlay_resize_cb)(struct client *, void *);
1689 struct client {
1690 	const char		*name;
1691 	struct tmuxpeer		*peer;
1692 	struct cmdq_list	*queue;
1693 
1694 	struct client_windows	 windows;
1695 
1696 	struct control_state	*control_state;
1697 	u_int			 pause_age;
1698 
1699 	pid_t			 pid;
1700 	int			 fd;
1701 	int			 out_fd;
1702 	struct event		 event;
1703 	int			 retval;
1704 
1705 	struct timeval		 creation_time;
1706 	struct timeval		 activity_time;
1707 
1708 	struct environ		*environ;
1709 	struct format_job_tree	*jobs;
1710 
1711 	char			*title;
1712 	char			*path;
1713 	const char		*cwd;
1714 
1715 	char			*term_name;
1716 	int			 term_features;
1717 	char			*term_type;
1718 	char		       **term_caps;
1719 	u_int			 term_ncaps;
1720 
1721 	char			*ttyname;
1722 	struct tty		 tty;
1723 
1724 	size_t			 written;
1725 	size_t			 discarded;
1726 	size_t			 redraw;
1727 
1728 	struct event		 repeat_timer;
1729 
1730 	struct event		 click_timer;
1731 	u_int			 click_button;
1732 	struct mouse_event	 click_event;
1733 
1734 	struct status_line	 status;
1735 
1736 #define CLIENT_TERMINAL 0x1
1737 #define CLIENT_LOGIN 0x2
1738 #define CLIENT_EXIT 0x4
1739 #define CLIENT_REDRAWWINDOW 0x8
1740 #define CLIENT_REDRAWSTATUS 0x10
1741 #define CLIENT_REPEAT 0x20
1742 #define CLIENT_SUSPENDED 0x40
1743 #define CLIENT_ATTACHED 0x80
1744 #define CLIENT_EXITED 0x100
1745 #define CLIENT_DEAD 0x200
1746 #define CLIENT_REDRAWBORDERS 0x400
1747 #define CLIENT_READONLY 0x800
1748 #define CLIENT_NOSTARTSERVER 0x1000
1749 #define CLIENT_CONTROL 0x2000
1750 #define CLIENT_CONTROLCONTROL 0x4000
1751 #define CLIENT_FOCUSED 0x8000
1752 #define CLIENT_UTF8 0x10000
1753 #define CLIENT_IGNORESIZE 0x20000
1754 #define CLIENT_IDENTIFIED 0x40000
1755 #define CLIENT_STATUSFORCE 0x80000
1756 #define CLIENT_DOUBLECLICK 0x100000
1757 #define CLIENT_TRIPLECLICK 0x200000
1758 #define CLIENT_SIZECHANGED 0x400000
1759 #define CLIENT_STATUSOFF 0x800000
1760 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1761 #define CLIENT_REDRAWOVERLAY 0x2000000
1762 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1763 #define CLIENT_DEFAULTSOCKET 0x8000000
1764 #define CLIENT_STARTSERVER 0x10000000
1765 #define CLIENT_REDRAWPANES 0x20000000
1766 #define CLIENT_NOFORK 0x40000000
1767 #define CLIENT_ACTIVEPANE 0x80000000ULL
1768 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1769 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1770 #define CLIENT_WINDOWSIZECHANGED 0x400000000ULL
1771 #define CLIENT_CLIPBOARDBUFFER 0x800000000ULL
1772 #define CLIENT_ALLREDRAWFLAGS		\
1773 	(CLIENT_REDRAWWINDOW|		\
1774 	 CLIENT_REDRAWSTATUS|		\
1775 	 CLIENT_REDRAWSTATUSALWAYS|	\
1776 	 CLIENT_REDRAWBORDERS|		\
1777 	 CLIENT_REDRAWOVERLAY|		\
1778 	 CLIENT_REDRAWPANES)
1779 #define CLIENT_UNATTACHEDFLAGS	\
1780 	(CLIENT_DEAD|		\
1781 	 CLIENT_SUSPENDED|	\
1782 	 CLIENT_EXIT)
1783 #define CLIENT_NODETACHFLAGS	\
1784 	(CLIENT_DEAD|		\
1785 	 CLIENT_EXIT)
1786 #define CLIENT_NOSIZEFLAGS	\
1787 	(CLIENT_DEAD|		\
1788 	 CLIENT_SUSPENDED|	\
1789 	 CLIENT_EXIT)
1790 	uint64_t		 flags;
1791 
1792 	enum {
1793 		CLIENT_EXIT_RETURN,
1794 		CLIENT_EXIT_SHUTDOWN,
1795 		CLIENT_EXIT_DETACH
1796 	}			 exit_type;
1797 	enum msgtype		 exit_msgtype;
1798 	char			*exit_session;
1799 	char			*exit_message;
1800 
1801 	struct key_table	*keytable;
1802 
1803 	uint64_t		 redraw_panes;
1804 
1805 	int			 message_ignore_keys;
1806 	int			 message_ignore_styles;
1807 	char			*message_string;
1808 	struct event		 message_timer;
1809 
1810 	char			*prompt_string;
1811 	struct utf8_data	*prompt_buffer;
1812 	char			*prompt_last;
1813 	size_t			 prompt_index;
1814 	prompt_input_cb		 prompt_inputcb;
1815 	prompt_free_cb		 prompt_freecb;
1816 	void			*prompt_data;
1817 	u_int			 prompt_hindex[PROMPT_NTYPES];
1818 	enum {
1819 		PROMPT_ENTRY,
1820 		PROMPT_COMMAND
1821 	}			 prompt_mode;
1822 	struct utf8_data	*prompt_saved;
1823 #define PROMPT_SINGLE 0x1
1824 #define PROMPT_NUMERIC 0x2
1825 #define PROMPT_INCREMENTAL 0x4
1826 #define PROMPT_NOFORMAT 0x8
1827 #define PROMPT_KEY 0x10
1828 	int			 prompt_flags;
1829 	enum prompt_type	 prompt_type;
1830 	int			 prompt_cursor;
1831 
1832 	struct session		*session;
1833 	struct session		*last_session;
1834 
1835 	int			 references;
1836 
1837 	void			*pan_window;
1838 	u_int			 pan_ox;
1839 	u_int			 pan_oy;
1840 
1841 	overlay_check_cb	 overlay_check;
1842 	overlay_mode_cb		 overlay_mode;
1843 	overlay_draw_cb		 overlay_draw;
1844 	overlay_key_cb		 overlay_key;
1845 	overlay_free_cb		 overlay_free;
1846 	overlay_resize_cb	 overlay_resize;
1847 	void			*overlay_data;
1848 	struct event		 overlay_timer;
1849 
1850 	struct client_files	 files;
1851 
1852 	u_int			*clipboard_panes;
1853 	u_int			 clipboard_npanes;
1854 
1855 	TAILQ_ENTRY(client)	 entry;
1856 };
1857 TAILQ_HEAD(clients, client);
1858 
1859 /* Control mode subscription type. */
1860 enum control_sub_type {
1861 	CONTROL_SUB_SESSION,
1862 	CONTROL_SUB_PANE,
1863 	CONTROL_SUB_ALL_PANES,
1864 	CONTROL_SUB_WINDOW,
1865 	CONTROL_SUB_ALL_WINDOWS
1866 };
1867 
1868 /* Key binding and key table. */
1869 struct key_binding {
1870 	key_code		 key;
1871 	struct cmd_list		*cmdlist;
1872 	const char		*note;
1873 
1874 	int			 flags;
1875 #define KEY_BINDING_REPEAT 0x1
1876 
1877 	RB_ENTRY(key_binding)	 entry;
1878 };
1879 RB_HEAD(key_bindings, key_binding);
1880 
1881 struct key_table {
1882 	const char		*name;
1883 	struct key_bindings	 key_bindings;
1884 	struct key_bindings	 default_key_bindings;
1885 
1886 	u_int			 references;
1887 
1888 	RB_ENTRY(key_table)	 entry;
1889 };
1890 RB_HEAD(key_tables, key_table);
1891 
1892 /* Option data. */
1893 RB_HEAD(options_array, options_array_item);
1894 union options_value {
1895 	char			*string;
1896 	long long		 number;
1897 	struct style		 style;
1898 	struct options_array	 array;
1899 	struct cmd_list		*cmdlist;
1900 };
1901 
1902 /* Option table entries. */
1903 enum options_table_type {
1904 	OPTIONS_TABLE_STRING,
1905 	OPTIONS_TABLE_NUMBER,
1906 	OPTIONS_TABLE_KEY,
1907 	OPTIONS_TABLE_COLOUR,
1908 	OPTIONS_TABLE_FLAG,
1909 	OPTIONS_TABLE_CHOICE,
1910 	OPTIONS_TABLE_COMMAND
1911 };
1912 
1913 #define OPTIONS_TABLE_NONE 0
1914 #define OPTIONS_TABLE_SERVER 0x1
1915 #define OPTIONS_TABLE_SESSION 0x2
1916 #define OPTIONS_TABLE_WINDOW 0x4
1917 #define OPTIONS_TABLE_PANE 0x8
1918 
1919 #define OPTIONS_TABLE_IS_ARRAY 0x1
1920 #define OPTIONS_TABLE_IS_HOOK 0x2
1921 #define OPTIONS_TABLE_IS_STYLE 0x4
1922 
1923 struct options_table_entry {
1924 	const char		 *name;
1925 	const char		 *alternative_name;
1926 	enum options_table_type	  type;
1927 	int			  scope;
1928 	int			  flags;
1929 
1930 	u_int			  minimum;
1931 	u_int			  maximum;
1932 	const char		**choices;
1933 
1934 	const char		 *default_str;
1935 	long long		  default_num;
1936 	const char		**default_arr;
1937 
1938 	const char		 *separator;
1939 	const char		 *pattern;
1940 
1941 	const char		 *text;
1942 	const char		 *unit;
1943 };
1944 
1945 struct options_name_map {
1946 	const char		*from;
1947 	const char		*to;
1948 };
1949 
1950 /* Common command usages. */
1951 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1952 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1953 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1954 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1955 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1956 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1957 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1958 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1959 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1960 
1961 /* Spawn common context. */
1962 struct spawn_context {
1963 	struct cmdq_item	 *item;
1964 
1965 	struct session		 *s;
1966 	struct winlink		 *wl;
1967 	struct client		 *tc;
1968 
1969 	struct window_pane	 *wp0;
1970 	struct layout_cell	 *lc;
1971 
1972 	const char		 *name;
1973 	char			**argv;
1974 	int			  argc;
1975 	struct environ		 *environ;
1976 
1977 	int			  idx;
1978 	const char		 *cwd;
1979 
1980 	int			  flags;
1981 #define SPAWN_KILL 0x1
1982 #define SPAWN_DETACHED 0x2
1983 #define SPAWN_RESPAWN 0x4
1984 #define SPAWN_BEFORE 0x8
1985 #define SPAWN_NONOTIFY 0x10
1986 #define SPAWN_FULLSIZE 0x20
1987 #define SPAWN_EMPTY 0x40
1988 #define SPAWN_ZOOM 0x80
1989 };
1990 
1991 /* Mode tree sort order. */
1992 struct mode_tree_sort_criteria {
1993 	u_int	field;
1994 	int	reversed;
1995 };
1996 
1997 /* tmux.c */
1998 extern struct options	*global_options;
1999 extern struct options	*global_s_options;
2000 extern struct options	*global_w_options;
2001 extern struct environ	*global_environ;
2002 extern struct timeval	 start_time;
2003 extern const char	*socket_path;
2004 extern const char	*shell_command;
2005 extern int		 ptm_fd;
2006 extern const char	*shell_command;
2007 int		 checkshell(const char *);
2008 void		 setblocking(int, int);
2009 uint64_t	 get_timer(void);
2010 const char	*sig2name(int);
2011 const char	*find_cwd(void);
2012 const char	*find_home(void);
2013 const char	*getversion(void);
2014 
2015 /* proc.c */
2016 struct imsg;
2017 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
2018 struct tmuxproc *proc_start(const char *);
2019 void	proc_loop(struct tmuxproc *, int (*)(void));
2020 void	proc_exit(struct tmuxproc *);
2021 void	proc_set_signals(struct tmuxproc *, void(*)(int));
2022 void	proc_clear_signals(struct tmuxproc *, int);
2023 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
2024 	    void (*)(struct imsg *, void *), void *);
2025 void	proc_remove_peer(struct tmuxpeer *);
2026 void	proc_kill_peer(struct tmuxpeer *);
2027 void	proc_toggle_log(struct tmuxproc *);
2028 pid_t	proc_fork_and_daemon(int *);
2029 uid_t	proc_get_peer_uid(struct tmuxpeer *);
2030 
2031 /* cfg.c */
2032 extern int cfg_finished;
2033 extern struct client *cfg_client;
2034 extern char **cfg_files;
2035 extern u_int cfg_nfiles;
2036 extern int cfg_quiet;
2037 void	start_cfg(void);
2038 int	load_cfg(const char *, struct client *, struct cmdq_item *, int,
2039 	    struct cmdq_item **);
2040 int	load_cfg_from_buffer(const void *, size_t, const char *,
2041 	    struct client *, struct cmdq_item *, int, struct cmdq_item **);
2042 void printflike(1, 2) cfg_add_cause(const char *, ...);
2043 void	cfg_print_causes(struct cmdq_item *);
2044 void	cfg_show_causes(struct session *);
2045 
2046 /* paste.c */
2047 struct paste_buffer;
2048 const char	*paste_buffer_name(struct paste_buffer *);
2049 u_int		 paste_buffer_order(struct paste_buffer *);
2050 time_t		 paste_buffer_created(struct paste_buffer *);
2051 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
2052 struct paste_buffer *paste_walk(struct paste_buffer *);
2053 struct paste_buffer *paste_get_top(const char **);
2054 struct paste_buffer *paste_get_name(const char *);
2055 void		 paste_free(struct paste_buffer *);
2056 void		 paste_add(const char *, char *, size_t);
2057 int		 paste_rename(const char *, const char *, char **);
2058 int		 paste_set(char *, size_t, const char *, char **);
2059 void		 paste_replace(struct paste_buffer *, char *, size_t);
2060 char		*paste_make_sample(struct paste_buffer *);
2061 
2062 /* format.c */
2063 #define FORMAT_STATUS 0x1
2064 #define FORMAT_FORCE 0x2
2065 #define FORMAT_NOJOBS 0x4
2066 #define FORMAT_VERBOSE 0x8
2067 #define FORMAT_NONE 0
2068 #define FORMAT_PANE 0x80000000U
2069 #define FORMAT_WINDOW 0x40000000U
2070 struct format_tree;
2071 struct format_modifier;
2072 typedef void *(*format_cb)(struct format_tree *);
2073 void		 format_tidy_jobs(void);
2074 const char	*format_skip(const char *, const char *);
2075 int		 format_true(const char *);
2076 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
2077 		     int);
2078 void		 format_free(struct format_tree *);
2079 void		 format_merge(struct format_tree *, struct format_tree *);
2080 struct window_pane *format_get_pane(struct format_tree *);
2081 void printflike(3, 4) format_add(struct format_tree *, const char *,
2082 		     const char *, ...);
2083 void		 format_add_tv(struct format_tree *, const char *,
2084 		     struct timeval *);
2085 void		 format_add_cb(struct format_tree *, const char *, format_cb);
2086 void		 format_log_debug(struct format_tree *, const char *);
2087 void		 format_each(struct format_tree *, void (*)(const char *,
2088 		     const char *, void *), void *);
2089 char		*format_expand_time(struct format_tree *, const char *);
2090 char		*format_expand(struct format_tree *, const char *);
2091 char		*format_single(struct cmdq_item *, const char *,
2092 		     struct client *, struct session *, struct winlink *,
2093 		     struct window_pane *);
2094 char		*format_single_from_state(struct cmdq_item *, const char *,
2095 		    struct client *, struct cmd_find_state *);
2096 char		*format_single_from_target(struct cmdq_item *, const char *);
2097 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
2098 		     struct session *, struct winlink *, struct window_pane *);
2099 struct format_tree *format_create_from_state(struct cmdq_item *,
2100 		     struct client *, struct cmd_find_state *);
2101 struct format_tree *format_create_from_target(struct cmdq_item *);
2102 void		 format_defaults(struct format_tree *, struct client *,
2103 		     struct session *, struct winlink *, struct window_pane *);
2104 void		 format_defaults_window(struct format_tree *, struct window *);
2105 void		 format_defaults_pane(struct format_tree *,
2106 		     struct window_pane *);
2107 void		 format_defaults_paste_buffer(struct format_tree *,
2108 		     struct paste_buffer *);
2109 void		 format_lost_client(struct client *);
2110 char		*format_grid_word(struct grid *, u_int, u_int);
2111 char		*format_grid_line(struct grid *, u_int);
2112 
2113 /* format-draw.c */
2114 void		 format_draw(struct screen_write_ctx *,
2115 		     const struct grid_cell *, u_int, const char *,
2116 		     struct style_ranges *, int);
2117 u_int		 format_width(const char *);
2118 char		*format_trim_left(const char *, u_int);
2119 char		*format_trim_right(const char *, u_int);
2120 
2121 /* notify.c */
2122 void	notify_hook(struct cmdq_item *, const char *);
2123 void	notify_client(const char *, struct client *);
2124 void	notify_session(const char *, struct session *);
2125 void	notify_winlink(const char *, struct winlink *);
2126 void	notify_session_window(const char *, struct session *, struct window *);
2127 void	notify_window(const char *, struct window *);
2128 void	notify_pane(const char *, struct window_pane *);
2129 
2130 /* options.c */
2131 struct options	*options_create(struct options *);
2132 void		 options_free(struct options *);
2133 struct options	*options_get_parent(struct options *);
2134 void		 options_set_parent(struct options *, struct options *);
2135 struct options_entry *options_first(struct options *);
2136 struct options_entry *options_next(struct options_entry *);
2137 struct options_entry *options_empty(struct options *,
2138 		     const struct options_table_entry *);
2139 struct options_entry *options_default(struct options *,
2140 		     const struct options_table_entry *);
2141 char		*options_default_to_string(const struct options_table_entry *);
2142 const char	*options_name(struct options_entry *);
2143 struct options	*options_owner(struct options_entry *);
2144 const struct options_table_entry *options_table_entry(struct options_entry *);
2145 struct options_entry *options_get_only(struct options *, const char *);
2146 struct options_entry *options_get(struct options *, const char *);
2147 void		 options_array_clear(struct options_entry *);
2148 union options_value *options_array_get(struct options_entry *, u_int);
2149 int		 options_array_set(struct options_entry *, u_int, const char *,
2150 		     int, char **);
2151 int		 options_array_assign(struct options_entry *, const char *,
2152 		     char **);
2153 struct options_array_item *options_array_first(struct options_entry *);
2154 struct options_array_item *options_array_next(struct options_array_item *);
2155 u_int		 options_array_item_index(struct options_array_item *);
2156 union options_value *options_array_item_value(struct options_array_item *);
2157 int		 options_is_array(struct options_entry *);
2158 int		 options_is_string(struct options_entry *);
2159 char		*options_to_string(struct options_entry *, int, int);
2160 char		*options_parse(const char *, int *);
2161 struct options_entry *options_parse_get(struct options *, const char *, int *,
2162 		     int);
2163 char		*options_match(const char *, int *, int *);
2164 struct options_entry *options_match_get(struct options *, const char *, int *,
2165 		     int, int *);
2166 const char	*options_get_string(struct options *, const char *);
2167 long long	 options_get_number(struct options *, const char *);
2168 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2169 		     const char *, int, const char *, ...);
2170 struct options_entry *options_set_number(struct options *, const char *,
2171 		     long long);
2172 int		 options_scope_from_name(struct args *, int,
2173 		     const char *, struct cmd_find_state *, struct options **,
2174 		     char **);
2175 int		 options_scope_from_flags(struct args *, int,
2176 		     struct cmd_find_state *, struct options **, char **);
2177 struct style	*options_string_to_style(struct options *, const char *,
2178 		     struct format_tree *);
2179 int		 options_from_string(struct options *,
2180 		     const struct options_table_entry *, const char *,
2181 		     const char *, int, char **);
2182 int	 	 options_find_choice(const struct options_table_entry *,
2183 		     const char *, char **);
2184 void		 options_push_changes(const char *);
2185 int		 options_remove_or_default(struct options_entry *, int,
2186 		     char **);
2187 
2188 /* options-table.c */
2189 extern const struct options_table_entry	options_table[];
2190 extern const struct options_name_map	options_other_names[];
2191 
2192 /* job.c */
2193 typedef void (*job_update_cb) (struct job *);
2194 typedef void (*job_complete_cb) (struct job *);
2195 typedef void (*job_free_cb) (void *);
2196 #define JOB_NOWAIT 0x1
2197 #define JOB_KEEPWRITE 0x2
2198 #define JOB_PTY 0x4
2199 struct job	*job_run(const char *, int, char **, struct environ *,
2200 		     struct session *, const char *, job_update_cb,
2201 		     job_complete_cb, job_free_cb, void *, int, int, int);
2202 void		 job_free(struct job *);
2203 int		 job_transfer(struct job *, pid_t *, char *, size_t);
2204 void		 job_resize(struct job *, u_int, u_int);
2205 void		 job_check_died(pid_t, int);
2206 int		 job_get_status(struct job *);
2207 void		*job_get_data(struct job *);
2208 struct bufferevent *job_get_event(struct job *);
2209 void		 job_kill_all(void);
2210 int		 job_still_running(void);
2211 void		 job_print_summary(struct cmdq_item *, int);
2212 
2213 /* environ.c */
2214 struct environ *environ_create(void);
2215 void	environ_free(struct environ *);
2216 struct environ_entry *environ_first(struct environ *);
2217 struct environ_entry *environ_next(struct environ_entry *);
2218 void	environ_copy(struct environ *, struct environ *);
2219 struct environ_entry *environ_find(struct environ *, const char *);
2220 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2221 	    const char *, ...);
2222 void	environ_clear(struct environ *, const char *);
2223 void	environ_put(struct environ *, const char *, int);
2224 void	environ_unset(struct environ *, const char *);
2225 void	environ_update(struct options *, struct environ *, struct environ *);
2226 void	environ_push(struct environ *);
2227 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2228 struct environ *environ_for_session(struct session *, int);
2229 
2230 /* tty.c */
2231 void	tty_create_log(void);
2232 int	tty_window_bigger(struct tty *);
2233 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2234 void	tty_update_window_offset(struct window *);
2235 void	tty_update_client_offset(struct client *);
2236 void	tty_raw(struct tty *, const char *);
2237 void	tty_attributes(struct tty *, const struct grid_cell *,
2238 	    const struct grid_cell *, struct colour_palette *);
2239 void	tty_reset(struct tty *);
2240 void	tty_region_off(struct tty *);
2241 void	tty_margin_off(struct tty *);
2242 void	tty_cursor(struct tty *, u_int, u_int);
2243 void	tty_clipboard_query(struct tty *);
2244 void	tty_putcode(struct tty *, enum tty_code_code);
2245 void	tty_putcode1(struct tty *, enum tty_code_code, int);
2246 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
2247 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
2248 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
2249 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
2250 	    const void *);
2251 void	tty_puts(struct tty *, const char *);
2252 void	tty_putc(struct tty *, u_char);
2253 void	tty_putn(struct tty *, const void *, size_t, u_int);
2254 void	tty_cell(struct tty *, const struct grid_cell *,
2255 	    const struct grid_cell *, struct colour_palette *);
2256 int	tty_init(struct tty *, struct client *);
2257 void	tty_resize(struct tty *);
2258 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2259 void	tty_start_tty(struct tty *);
2260 void	tty_send_requests(struct tty *);
2261 void	tty_stop_tty(struct tty *);
2262 void	tty_set_title(struct tty *, const char *);
2263 void	tty_set_path(struct tty *, const char *);
2264 void	tty_update_mode(struct tty *, int, struct screen *);
2265 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2266 	    u_int, u_int, const struct grid_cell *, struct colour_palette *);
2267 void	tty_sync_start(struct tty *);
2268 void	tty_sync_end(struct tty *);
2269 int	tty_open(struct tty *, char **);
2270 void	tty_close(struct tty *);
2271 void	tty_free(struct tty *);
2272 void	tty_update_features(struct tty *);
2273 void	tty_set_selection(struct tty *, const char *, size_t);
2274 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2275 	    struct tty_ctx *);
2276 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2277 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2278 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2279 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2280 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2281 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2282 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2283 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2284 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2285 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2286 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2287 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2288 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2289 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2290 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2291 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2292 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2293 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2294 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2295 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2296 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2297 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2298 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2299 
2300 /* tty-term.c */
2301 extern struct tty_terms tty_terms;
2302 u_int		 tty_term_ncodes(void);
2303 void		 tty_term_apply(struct tty_term *, const char *, int);
2304 void		 tty_term_apply_overrides(struct tty_term *);
2305 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2306 		     char **);
2307 void		 tty_term_free(struct tty_term *);
2308 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2309 		     char **);
2310 void		 tty_term_free_list(char **, u_int);
2311 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2312 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2313 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
2314 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
2315 		     int);
2316 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
2317 		     int, int);
2318 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
2319 		     const void *);
2320 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
2321 		     const void *, const void *);
2322 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2323 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2324 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2325 
2326 /* tty-features.c */
2327 void		 tty_add_features(int *, const char *, const char *);
2328 const char	*tty_get_features(int);
2329 int		 tty_apply_features(struct tty_term *, int);
2330 void		 tty_default_features(int *, const char *, u_int);
2331 
2332 /* tty-acs.c */
2333 int		 tty_acs_needed(struct tty *);
2334 const char	*tty_acs_get(struct tty *, u_char);
2335 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2336 const struct utf8_data *tty_acs_double_borders(int);
2337 const struct utf8_data *tty_acs_heavy_borders(int);
2338 const struct utf8_data *tty_acs_rounded_borders(int);
2339 
2340 /* tty-keys.c */
2341 void		tty_keys_build(struct tty *);
2342 void		tty_keys_free(struct tty *);
2343 int		tty_keys_next(struct tty *);
2344 
2345 /* arguments.c */
2346 void		 args_set(struct args *, u_char, struct args_value *);
2347 struct args 	*args_create(void);
2348 struct args	*args_parse(const struct args_parse *, struct args_value *,
2349 		     u_int, char **);
2350 struct args	*args_copy(struct args *, int, char **);
2351 void		 args_to_vector(struct args *, int *, char ***);
2352 struct args_value *args_from_vector(int, char **);
2353 void		 args_free_value(struct args_value *);
2354 void		 args_free_values(struct args_value *, u_int);
2355 void		 args_free(struct args *);
2356 char		*args_print(struct args *);
2357 char		*args_escape(const char *);
2358 int		 args_has(struct args *, u_char);
2359 const char	*args_get(struct args *, u_char);
2360 u_char		 args_first(struct args *, struct args_entry **);
2361 u_char		 args_next(struct args_entry **);
2362 u_int		 args_count(struct args *);
2363 struct args_value *args_values(struct args *);
2364 struct args_value *args_value(struct args *, u_int);
2365 const char	*args_string(struct args *, u_int);
2366 struct cmd_list	*args_make_commands_now(struct cmd *, struct cmdq_item *,
2367 		     u_int, int);
2368 struct args_command_state *args_make_commands_prepare(struct cmd *,
2369 		     struct cmdq_item *, u_int, const char *, int, int);
2370 struct cmd_list *args_make_commands(struct args_command_state *, int, char **,
2371 		     char **);
2372 void		 args_make_commands_free(struct args_command_state *);
2373 char		*args_make_commands_get_command(struct args_command_state *);
2374 struct args_value *args_first_value(struct args *, u_char);
2375 struct args_value *args_next_value(struct args_value *);
2376 long long	 args_strtonum(struct args *, u_char, long long, long long,
2377 		     char **);
2378 long long	 args_percentage(struct args *, u_char, long long,
2379 		     long long, long long, char **);
2380 long long	 args_string_percentage(const char *, long long, long long,
2381 		     long long, char **);
2382 
2383 /* cmd-find.c */
2384 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2385 		     const char *, enum cmd_find_type, int);
2386 struct client	*cmd_find_best_client(struct session *);
2387 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2388 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2389 int		 cmd_find_empty_state(struct cmd_find_state *);
2390 int		 cmd_find_valid_state(struct cmd_find_state *);
2391 void		 cmd_find_copy_state(struct cmd_find_state *,
2392 		     struct cmd_find_state *);
2393 void		 cmd_find_from_session(struct cmd_find_state *,
2394 		     struct session *, int);
2395 void		 cmd_find_from_winlink(struct cmd_find_state *,
2396 		     struct winlink *, int);
2397 int		 cmd_find_from_session_window(struct cmd_find_state *,
2398 		     struct session *, struct window *, int);
2399 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2400 		     int);
2401 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2402 		     struct winlink *, struct window_pane *, int);
2403 int		 cmd_find_from_pane(struct cmd_find_state *,
2404 		     struct window_pane *, int);
2405 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2406 		     int);
2407 int		 cmd_find_from_mouse(struct cmd_find_state *,
2408 		     struct mouse_event *, int);
2409 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2410 
2411 /* cmd.c */
2412 extern const struct cmd_entry *cmd_table[];
2413 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2414 void		 cmd_prepend_argv(int *, char ***, const char *);
2415 void		 cmd_append_argv(int *, char ***, const char *);
2416 int		 cmd_pack_argv(int, char **, char *, size_t);
2417 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2418 char	       **cmd_copy_argv(int, char **);
2419 void		 cmd_free_argv(int, char **);
2420 char		*cmd_stringify_argv(int, char **);
2421 char		*cmd_get_alias(const char *);
2422 const struct cmd_entry *cmd_get_entry(struct cmd *);
2423 struct args	*cmd_get_args(struct cmd *);
2424 u_int		 cmd_get_group(struct cmd *);
2425 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2426 struct cmd	*cmd_parse(struct args_value *, u_int, const char *, u_int,
2427 		     char **);
2428 struct cmd	*cmd_copy(struct cmd *, int, char **);
2429 void		 cmd_free(struct cmd *);
2430 char		*cmd_print(struct cmd *);
2431 struct cmd_list	*cmd_list_new(void);
2432 struct cmd_list	*cmd_list_copy(struct cmd_list *, int, char **);
2433 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2434 void		 cmd_list_append_all(struct cmd_list *, struct cmd_list *);
2435 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2436 void		 cmd_list_free(struct cmd_list *);
2437 char		*cmd_list_print(struct cmd_list *, int);
2438 struct cmd	*cmd_list_first(struct cmd_list *);
2439 struct cmd	*cmd_list_next(struct cmd *);
2440 int		 cmd_list_all_have(struct cmd_list *, int);
2441 int		 cmd_list_any_have(struct cmd_list *, int);
2442 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2443 		     u_int *, u_int *, int);
2444 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2445 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2446 		     struct winlink **);
2447 char		*cmd_template_replace(const char *, const char *, int);
2448 
2449 /* cmd-attach-session.c */
2450 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2451 		     int, const char *, int, const char *);
2452 
2453 /* cmd-parse.c */
2454 void		 cmd_parse_empty(struct cmd_parse_input *);
2455 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2456 struct cmd_parse_result *cmd_parse_from_string(const char *,
2457 		     struct cmd_parse_input *);
2458 enum cmd_parse_status cmd_parse_and_insert(const char *,
2459 		     struct cmd_parse_input *, struct cmdq_item *,
2460 		     struct cmdq_state *, char **);
2461 enum cmd_parse_status cmd_parse_and_append(const char *,
2462 		     struct cmd_parse_input *, struct client *,
2463 		     struct cmdq_state *, char **);
2464 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2465 		     struct cmd_parse_input *);
2466 struct cmd_parse_result *cmd_parse_from_arguments(struct args_value *, u_int,
2467 		     struct cmd_parse_input *);
2468 
2469 /* cmd-queue.c */
2470 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2471 		     int);
2472 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2473 struct cmdq_state *cmdq_copy_state(struct cmdq_state *);
2474 void		  cmdq_free_state(struct cmdq_state *);
2475 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2476 		     const char *, ...);
2477 void		  cmdq_add_formats(struct cmdq_state *, struct format_tree *);
2478 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2479 struct cmdq_list *cmdq_new(void);
2480 void cmdq_free(struct cmdq_list *);
2481 const char	 *cmdq_get_name(struct cmdq_item *);
2482 struct client	 *cmdq_get_client(struct cmdq_item *);
2483 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2484 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2485 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2486 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2487 struct key_event *cmdq_get_event(struct cmdq_item *);
2488 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2489 int		  cmdq_get_flags(struct cmdq_item *);
2490 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2491 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2492 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2493 struct cmdq_item *cmdq_get_error(const char *);
2494 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2495 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2496 void printflike(4, 5) cmdq_insert_hook(struct session *, struct cmdq_item *,
2497 		     struct cmd_find_state *, const char *, ...);
2498 void		 cmdq_continue(struct cmdq_item *);
2499 u_int		 cmdq_next(struct client *);
2500 struct cmdq_item *cmdq_running(struct client *);
2501 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2502 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2503 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2504 
2505 /* cmd-wait-for.c */
2506 void	cmd_wait_for_flush(void);
2507 
2508 /* client.c */
2509 int	client_main(struct event_base *, int, char **, uint64_t, int);
2510 
2511 /* key-bindings.c */
2512 struct key_table *key_bindings_get_table(const char *, int);
2513 struct key_table *key_bindings_first_table(void);
2514 struct key_table *key_bindings_next_table(struct key_table *);
2515 void	 key_bindings_unref_table(struct key_table *);
2516 struct key_binding *key_bindings_get(struct key_table *, key_code);
2517 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2518 struct key_binding *key_bindings_first(struct key_table *);
2519 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2520 void	 key_bindings_add(const char *, key_code, const char *, int,
2521 	     struct cmd_list *);
2522 void	 key_bindings_remove(const char *, key_code);
2523 void	 key_bindings_reset(const char *, key_code);
2524 void	 key_bindings_remove_table(const char *);
2525 void	 key_bindings_reset_table(const char *);
2526 void	 key_bindings_init(void);
2527 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2528 	     struct cmdq_item *, struct client *, struct key_event *,
2529 	     struct cmd_find_state *);
2530 
2531 /* key-string.c */
2532 key_code	 key_string_lookup_string(const char *);
2533 const char	*key_string_lookup_key(key_code, int);
2534 
2535 /* alerts.c */
2536 void	alerts_reset_all(void);
2537 void	alerts_queue(struct window *, int);
2538 void	alerts_check_session(struct session *);
2539 
2540 /* file.c */
2541 int	 file_cmp(struct client_file *, struct client_file *);
2542 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2543 struct client_file *file_create_with_peer(struct tmuxpeer *,
2544 	    struct client_files *, int, client_file_cb, void *);
2545 struct client_file *file_create_with_client(struct client *, int,
2546 	    client_file_cb, void *);
2547 void	 file_free(struct client_file *);
2548 void	 file_fire_done(struct client_file *);
2549 void	 file_fire_read(struct client_file *);
2550 int	 file_can_print(struct client *);
2551 void printflike(2, 3) file_print(struct client *, const char *, ...);
2552 void printflike(2, 0) file_vprint(struct client *, const char *, va_list);
2553 void	 file_print_buffer(struct client *, void *, size_t);
2554 void printflike(2, 3) file_error(struct client *, const char *, ...);
2555 void	 file_write(struct client *, const char *, int, const void *, size_t,
2556 	     client_file_cb, void *);
2557 void	 file_read(struct client *, const char *, client_file_cb, void *);
2558 void	 file_push(struct client_file *);
2559 int	 file_write_left(struct client_files *);
2560 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2561 	     struct imsg *, int, int, client_file_cb, void *);
2562 void	 file_write_data(struct client_files *, struct imsg *);
2563 void	 file_write_close(struct client_files *, struct imsg *);
2564 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2565 	     int, int, client_file_cb, void *);
2566 void	 file_write_ready(struct client_files *, struct imsg *);
2567 void	 file_read_data(struct client_files *, struct imsg *);
2568 void	 file_read_done(struct client_files *, struct imsg *);
2569 
2570 /* server.c */
2571 extern struct tmuxproc *server_proc;
2572 extern struct clients clients;
2573 extern struct cmd_find_state marked_pane;
2574 extern struct message_list message_log;
2575 void	 server_set_marked(struct session *, struct winlink *,
2576 	     struct window_pane *);
2577 void	 server_clear_marked(void);
2578 int	 server_is_marked(struct session *, struct winlink *,
2579 	     struct window_pane *);
2580 int	 server_check_marked(void);
2581 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2582 void	 server_update_socket(void);
2583 void	 server_add_accept(int);
2584 void printflike(1, 2) server_add_message(const char *, ...);
2585 
2586 /* server-client.c */
2587 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2588 u_int	 server_client_how_many(void);
2589 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2590 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2591 	     overlay_free_cb, overlay_resize_cb, void *);
2592 void	 server_client_clear_overlay(struct client *);
2593 void	 server_client_overlay_range(u_int, u_int, u_int, u_int, u_int, u_int,
2594 	     u_int, struct overlay_ranges *);
2595 void	 server_client_set_key_table(struct client *, const char *);
2596 const char *server_client_get_key_table(struct client *);
2597 int	 server_client_check_nested(struct client *);
2598 int	 server_client_handle_key(struct client *, struct key_event *);
2599 struct client *server_client_create(int);
2600 int	 server_client_open(struct client *, char **);
2601 void	 server_client_unref(struct client *);
2602 void	 server_client_set_session(struct client *, struct session *);
2603 void	 server_client_lost(struct client *);
2604 void	 server_client_suspend(struct client *);
2605 void	 server_client_detach(struct client *, enum msgtype);
2606 void	 server_client_exec(struct client *, const char *);
2607 void	 server_client_loop(void);
2608 void	 server_client_push_stdout(struct client *);
2609 void	 server_client_push_stderr(struct client *);
2610 const char *server_client_get_cwd(struct client *, struct session *);
2611 void	 server_client_set_flags(struct client *, const char *);
2612 const char *server_client_get_flags(struct client *);
2613 struct client_window *server_client_get_client_window(struct client *, u_int);
2614 struct client_window *server_client_add_client_window(struct client *, u_int);
2615 struct window_pane *server_client_get_pane(struct client *);
2616 void	 server_client_set_pane(struct client *, struct window_pane *);
2617 void	 server_client_remove_pane(struct window_pane *);
2618 
2619 /* server-fn.c */
2620 void	 server_redraw_client(struct client *);
2621 void	 server_status_client(struct client *);
2622 void	 server_redraw_session(struct session *);
2623 void	 server_redraw_session_group(struct session *);
2624 void	 server_status_session(struct session *);
2625 void	 server_status_session_group(struct session *);
2626 void	 server_redraw_window(struct window *);
2627 void	 server_redraw_window_borders(struct window *);
2628 void	 server_status_window(struct window *);
2629 void	 server_lock(void);
2630 void	 server_lock_session(struct session *);
2631 void	 server_lock_client(struct client *);
2632 void	 server_kill_pane(struct window_pane *);
2633 void	 server_kill_window(struct window *, int);
2634 void	 server_renumber_session(struct session *);
2635 void	 server_renumber_all(void);
2636 int	 server_link_window(struct session *,
2637 	     struct winlink *, struct session *, int, int, int, char **);
2638 void	 server_unlink_window(struct session *, struct winlink *);
2639 void	 server_destroy_pane(struct window_pane *, int);
2640 void	 server_destroy_session(struct session *);
2641 void	 server_check_unattached(void);
2642 void	 server_unzoom_window(struct window *);
2643 
2644 /* status.c */
2645 extern char	**status_prompt_hlist[];
2646 extern u_int	  status_prompt_hsize[];
2647 void	 status_timer_start(struct client *);
2648 void	 status_timer_start_all(void);
2649 void	 status_update_cache(struct session *);
2650 int	 status_at_line(struct client *);
2651 u_int	 status_line_size(struct client *);
2652 struct style_range *status_get_range(struct client *, u_int, u_int);
2653 void	 status_init(struct client *);
2654 void	 status_free(struct client *);
2655 int	 status_redraw(struct client *);
2656 void printflike(5, 6) status_message_set(struct client *, int, int, int,
2657 	     const char *, ...);
2658 void	 status_message_clear(struct client *);
2659 int	 status_message_redraw(struct client *);
2660 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2661 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2662 	     void *, int, enum prompt_type);
2663 void	 status_prompt_clear(struct client *);
2664 int	 status_prompt_redraw(struct client *);
2665 int	 status_prompt_key(struct client *, key_code);
2666 void	 status_prompt_update(struct client *, const char *, const char *);
2667 void	 status_prompt_load_history(void);
2668 void	 status_prompt_save_history(void);
2669 const char *status_prompt_type_string(u_int);
2670 enum prompt_type status_prompt_type(const char *type);
2671 
2672 /* resize.c */
2673 void	 resize_window(struct window *, u_int, u_int, int, int);
2674 void	 default_window_size(struct client *, struct session *, struct window *,
2675 	     u_int *, u_int *, u_int *, u_int *, int);
2676 void	 recalculate_size(struct window *, int);
2677 void	 recalculate_sizes(void);
2678 void	 recalculate_sizes_now(int);
2679 
2680 /* input.c */
2681 struct input_ctx *input_init(struct window_pane *, struct bufferevent *,
2682 	     struct colour_palette *);
2683 void	 input_free(struct input_ctx *);
2684 void	 input_reset(struct input_ctx *, int);
2685 struct evbuffer *input_pending(struct input_ctx *);
2686 void	 input_parse_pane(struct window_pane *);
2687 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2688 void	 input_parse_screen(struct input_ctx *, struct screen *,
2689 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2690 void	 input_reply_clipboard(struct bufferevent *, const char *, size_t,
2691 	     const char *);
2692 
2693 /* input-key.c */
2694 void	 input_key_build(void);
2695 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2696 int	 input_key(struct screen *, struct bufferevent *, key_code);
2697 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2698 	     u_int, const char **, size_t *);
2699 
2700 /* colour.c */
2701 int	 colour_find_rgb(u_char, u_char, u_char);
2702 int	 colour_join_rgb(u_char, u_char, u_char);
2703 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2704 int	 colour_force_rgb(int);
2705 const char *colour_tostring(int);
2706 int	 colour_fromstring(const char *s);
2707 int	 colour_256toRGB(int);
2708 int	 colour_256to16(int);
2709 int	 colour_byname(const char *);
2710 void	 colour_palette_init(struct colour_palette *);
2711 void	 colour_palette_clear(struct colour_palette *);
2712 void	 colour_palette_free(struct colour_palette *);
2713 int	 colour_palette_get(struct colour_palette *, int);
2714 int	 colour_palette_set(struct colour_palette *, int, int);
2715 void	 colour_palette_from_option(struct colour_palette *, struct options *);
2716 
2717 /* attributes.c */
2718 const char *attributes_tostring(int);
2719 int	 attributes_fromstring(const char *);
2720 
2721 /* grid.c */
2722 extern const struct grid_cell grid_default_cell;
2723 void	 grid_empty_line(struct grid *, u_int, u_int);
2724 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2725 int	 grid_cells_look_equal(const struct grid_cell *,
2726 	     const struct grid_cell *);
2727 struct grid *grid_create(u_int, u_int, u_int);
2728 void	 grid_destroy(struct grid *);
2729 int	 grid_compare(struct grid *, struct grid *);
2730 void	 grid_collect_history(struct grid *);
2731 void	 grid_remove_history(struct grid *, u_int );
2732 void	 grid_scroll_history(struct grid *, u_int);
2733 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2734 void	 grid_clear_history(struct grid *);
2735 const struct grid_line *grid_peek_line(struct grid *, u_int);
2736 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2737 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2738 void	 grid_set_padding(struct grid *, u_int, u_int);
2739 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2740 	     const char *, size_t);
2741 struct grid_line *grid_get_line(struct grid *, u_int);
2742 void	 grid_adjust_lines(struct grid *, u_int);
2743 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2744 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2745 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2746 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2747 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2748 	     struct grid_cell **, int, int, int);
2749 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2750 	     u_int);
2751 void	 grid_reflow(struct grid *, u_int);
2752 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2753 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2754 u_int	 grid_line_length(struct grid *, u_int);
2755 
2756 /* grid-reader.c */
2757 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2758 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2759 u_int	 grid_reader_line_length(struct grid_reader *);
2760 int	 grid_reader_in_set(struct grid_reader *, const char *);
2761 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2762 void	 grid_reader_cursor_left(struct grid_reader *, int);
2763 void	 grid_reader_cursor_down(struct grid_reader *);
2764 void	 grid_reader_cursor_up(struct grid_reader *);
2765 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2766 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2767 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2768 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2769 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2770 	     int, int);
2771 int	 grid_reader_cursor_jump(struct grid_reader *,
2772 	     const struct utf8_data *);
2773 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2774 	     const struct utf8_data *);
2775 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2776 
2777 /* grid-view.c */
2778 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2779 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2780 	     const struct grid_cell *);
2781 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2782 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2783 	     const struct grid_cell *, const char *, size_t);
2784 void	 grid_view_clear_history(struct grid *, u_int);
2785 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2786 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2787 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2788 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2789 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2790 	     u_int);
2791 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2792 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2793 	     u_int);
2794 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2795 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2796 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2797 
2798 /* screen-write.c */
2799 void	 screen_write_make_list(struct screen *);
2800 void	 screen_write_free_list(struct screen *);
2801 void	 screen_write_start_pane(struct screen_write_ctx *,
2802 	     struct window_pane *, struct screen *);
2803 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2804 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2805 	     screen_write_init_ctx_cb, void *);
2806 void	 screen_write_stop(struct screen_write_ctx *);
2807 void	 screen_write_reset(struct screen_write_ctx *);
2808 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2809 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2810 	     u_int, int, const struct grid_cell *, const char *, ...);
2811 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2812 	     const struct grid_cell *, const char *, ...);
2813 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2814 	     ssize_t, const struct grid_cell *, const char *, ...);
2815 void printflike(4, 0) screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2816 	     const struct grid_cell *, const char *, va_list);
2817 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2818 	     u_char);
2819 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2820 	     u_int, u_int, u_int, u_int);
2821 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2822 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2823 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2824 	     const struct grid_cell *);
2825 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int, int,
2826 	     const struct grid_cell *, const char *);
2827 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2828 	     u_int);
2829 void	 screen_write_backspace(struct screen_write_ctx *);
2830 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2831 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2832 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2833 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2834 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2835 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2836 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2837 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2838 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2839 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2840 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2841 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2842 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2843 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2844 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2845 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2846 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2847 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2848 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2849 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2850 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2851 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2852 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2853 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2854 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2855 void	 screen_write_clearhistory(struct screen_write_ctx *);
2856 void	 screen_write_fullredraw(struct screen_write_ctx *);
2857 void	 screen_write_collect_end(struct screen_write_ctx *);
2858 void	 screen_write_collect_add(struct screen_write_ctx *,
2859 	     const struct grid_cell *);
2860 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2861 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2862 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2863 void	 screen_write_alternateon(struct screen_write_ctx *,
2864 	     struct grid_cell *, int);
2865 void	 screen_write_alternateoff(struct screen_write_ctx *,
2866 	     struct grid_cell *, int);
2867 
2868 /* screen-redraw.c */
2869 void	 screen_redraw_screen(struct client *);
2870 void	 screen_redraw_pane(struct client *, struct window_pane *);
2871 
2872 /* screen.c */
2873 void	 screen_init(struct screen *, u_int, u_int, u_int);
2874 void	 screen_reinit(struct screen *);
2875 void	 screen_free(struct screen *);
2876 void	 screen_reset_tabs(struct screen *);
2877 void	 screen_set_cursor_style(u_int, enum screen_cursor_style *, int *);
2878 void	 screen_set_cursor_colour(struct screen *, int);
2879 int	 screen_set_title(struct screen *, const char *);
2880 void	 screen_set_path(struct screen *, const char *);
2881 void	 screen_push_title(struct screen *);
2882 void	 screen_pop_title(struct screen *);
2883 void	 screen_resize(struct screen *, u_int, u_int, int);
2884 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
2885 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2886 	     u_int, int, struct grid_cell *);
2887 void	 screen_clear_selection(struct screen *);
2888 void	 screen_hide_selection(struct screen *);
2889 int	 screen_check_selection(struct screen *, u_int, u_int);
2890 void	 screen_select_cell(struct screen *, struct grid_cell *,
2891 	     const struct grid_cell *);
2892 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
2893 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
2894 const char *screen_mode_to_string(int);
2895 
2896 /* window.c */
2897 extern struct windows windows;
2898 extern struct window_pane_tree all_window_panes;
2899 int		 window_cmp(struct window *, struct window *);
2900 RB_PROTOTYPE(windows, window, entry, window_cmp);
2901 int		 winlink_cmp(struct winlink *, struct winlink *);
2902 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2903 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2904 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2905 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2906 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2907 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2908 u_int		 winlink_count(struct winlinks *);
2909 struct winlink	*winlink_add(struct winlinks *, int);
2910 void		 winlink_set_window(struct winlink *, struct window *);
2911 void		 winlink_remove(struct winlinks *, struct winlink *);
2912 struct winlink	*winlink_next(struct winlink *);
2913 struct winlink	*winlink_previous(struct winlink *);
2914 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2915 		     int);
2916 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2917 		     int);
2918 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2919 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2920 struct window	*window_find_by_id_str(const char *);
2921 struct window	*window_find_by_id(u_int);
2922 void		 window_update_activity(struct window *);
2923 struct window	*window_create(u_int, u_int, u_int, u_int);
2924 void		 window_pane_set_event(struct window_pane *);
2925 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2926 struct window_pane *window_find_string(struct window *, const char *);
2927 int		 window_has_pane(struct window *, struct window_pane *);
2928 int		 window_set_active_pane(struct window *, struct window_pane *,
2929 		     int);
2930 void		 window_update_focus(struct window *);
2931 void		 window_pane_update_focus(struct window_pane *);
2932 void		 window_redraw_active_switch(struct window *,
2933 		     struct window_pane *);
2934 struct window_pane *window_add_pane(struct window *, struct window_pane *,
2935 		     u_int, int);
2936 void		 window_resize(struct window *, u_int, u_int, int, int);
2937 void		 window_pane_send_resize(struct window_pane *, u_int, u_int);
2938 int		 window_zoom(struct window_pane *);
2939 int		 window_unzoom(struct window *);
2940 int		 window_push_zoom(struct window *, int, int);
2941 int		 window_pop_zoom(struct window *);
2942 void		 window_lost_pane(struct window *, struct window_pane *);
2943 void		 window_remove_pane(struct window *, struct window_pane *);
2944 struct window_pane *window_pane_at_index(struct window *, u_int);
2945 struct window_pane *window_pane_next_by_number(struct window *,
2946 			struct window_pane *, u_int);
2947 struct window_pane *window_pane_previous_by_number(struct window *,
2948 			struct window_pane *, u_int);
2949 int		 window_pane_index(struct window_pane *, u_int *);
2950 u_int		 window_count_panes(struct window *);
2951 void		 window_destroy_panes(struct window *);
2952 struct window_pane *window_pane_find_by_id_str(const char *);
2953 struct window_pane *window_pane_find_by_id(u_int);
2954 int		 window_pane_destroy_ready(struct window_pane *);
2955 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2956 int		 window_pane_set_mode(struct window_pane *,
2957 		     struct window_pane *, const struct window_mode *,
2958 		     struct cmd_find_state *, struct args *);
2959 void		 window_pane_reset_mode(struct window_pane *);
2960 void		 window_pane_reset_mode_all(struct window_pane *);
2961 int		 window_pane_key(struct window_pane *, struct client *,
2962 		     struct session *, struct winlink *, key_code,
2963 		     struct mouse_event *);
2964 int		 window_pane_visible(struct window_pane *);
2965 u_int		 window_pane_search(struct window_pane *, const char *, int,
2966 		     int);
2967 const char	*window_printable_flags(struct winlink *, int);
2968 struct window_pane *window_pane_find_up(struct window_pane *);
2969 struct window_pane *window_pane_find_down(struct window_pane *);
2970 struct window_pane *window_pane_find_left(struct window_pane *);
2971 struct window_pane *window_pane_find_right(struct window_pane *);
2972 void		 window_set_name(struct window *, const char *);
2973 void		 window_add_ref(struct window *, const char *);
2974 void		 window_remove_ref(struct window *, const char *);
2975 void		 winlink_clear_flags(struct winlink *);
2976 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
2977 int		 window_pane_start_input(struct window_pane *,
2978 		     struct cmdq_item *, char **);
2979 void		*window_pane_get_new_data(struct window_pane *,
2980 		     struct window_pane_offset *, size_t *);
2981 void		 window_pane_update_used_data(struct window_pane *,
2982 		     struct window_pane_offset *, size_t);
2983 void		 window_set_fill_character(struct window *);
2984 
2985 /* layout.c */
2986 u_int		 layout_count_cells(struct layout_cell *);
2987 struct layout_cell *layout_create_cell(struct layout_cell *);
2988 void		 layout_free_cell(struct layout_cell *);
2989 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2990 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2991 		     struct layout_cell **);
2992 void		 layout_resize_layout(struct window *, struct layout_cell *,
2993 		     enum layout_type, int, int);
2994 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2995 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2996 		     u_int);
2997 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2998 void		 layout_make_node(struct layout_cell *, enum layout_type);
2999 void		 layout_fix_offsets(struct window *);
3000 void		 layout_fix_panes(struct window *, struct window_pane *);
3001 void		 layout_resize_adjust(struct window *, struct layout_cell *,
3002 		     enum layout_type, int);
3003 void		 layout_init(struct window *, struct window_pane *);
3004 void		 layout_free(struct window *);
3005 void		 layout_resize(struct window *, u_int, u_int);
3006 void		 layout_resize_pane(struct window_pane *, enum layout_type,
3007 		     int, int);
3008 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
3009 		     u_int);
3010 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
3011 		     int);
3012 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
3013 		     int, int);
3014 void		 layout_close_pane(struct window_pane *);
3015 int		 layout_spread_cell(struct window *, struct layout_cell *);
3016 void		 layout_spread_out(struct window_pane *);
3017 
3018 /* layout-custom.c */
3019 char		*layout_dump(struct layout_cell *);
3020 int		 layout_parse(struct window *, const char *);
3021 
3022 /* layout-set.c */
3023 int		 layout_set_lookup(const char *);
3024 u_int		 layout_set_select(struct window *, u_int);
3025 u_int		 layout_set_next(struct window *);
3026 u_int		 layout_set_previous(struct window *);
3027 
3028 /* mode-tree.c */
3029 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
3030 				   uint64_t *, const char *);
3031 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
3032 	     u_int, u_int);
3033 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
3034 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
3035 typedef u_int (*mode_tree_height_cb)(void *, u_int);
3036 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
3037 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
3038 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
3039 void	*mode_tree_get_current(struct mode_tree_data *);
3040 const char *mode_tree_get_current_name(struct mode_tree_data *);
3041 void	 mode_tree_expand_current(struct mode_tree_data *);
3042 void	 mode_tree_collapse_current(struct mode_tree_data *);
3043 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
3044 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
3045 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
3046 	     struct client *, key_code, int);
3047 void	 mode_tree_up(struct mode_tree_data *, int);
3048 void	 mode_tree_down(struct mode_tree_data *, int);
3049 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
3050 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
3051 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
3052 	     const struct menu_item *, const char **, u_int, struct screen **);
3053 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
3054 void	 mode_tree_build(struct mode_tree_data *);
3055 void	 mode_tree_free(struct mode_tree_data *);
3056 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
3057 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
3058 	     struct mode_tree_item *, void *, uint64_t, const char *,
3059 	     const char *, int);
3060 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
3061 void	 mode_tree_no_tag(struct mode_tree_item *);
3062 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
3063 void	 mode_tree_draw(struct mode_tree_data *);
3064 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
3065 	     struct mouse_event *, u_int *, u_int *);
3066 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
3067 	     const char *, const char *);
3068 
3069 /* window-buffer.c */
3070 extern const struct window_mode window_buffer_mode;
3071 
3072 /* window-tree.c */
3073 extern const struct window_mode window_tree_mode;
3074 
3075 /* window-clock.c */
3076 extern const struct window_mode window_clock_mode;
3077 extern const char window_clock_table[14][5][5];
3078 
3079 /* window-client.c */
3080 extern const struct window_mode window_client_mode;
3081 
3082 /* window-copy.c */
3083 extern const struct window_mode window_copy_mode;
3084 extern const struct window_mode window_view_mode;
3085 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
3086 void printflike(2, 0) window_copy_vadd(struct window_pane *, const char *,
3087 		     va_list);
3088 void		 window_copy_pageup(struct window_pane *, int);
3089 void		 window_copy_start_drag(struct client *, struct mouse_event *);
3090 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
3091 char		*window_copy_get_line(struct window_pane *, u_int);
3092 
3093 /* window-option.c */
3094 extern const struct window_mode window_customize_mode;
3095 
3096 /* names.c */
3097 void	 check_window_name(struct window *);
3098 char	*default_window_name(struct window *);
3099 char	*parse_window_name(const char *);
3100 
3101 /* control.c */
3102 void	control_discard(struct client *);
3103 void	control_start(struct client *);
3104 void	control_stop(struct client *);
3105 void	control_set_pane_on(struct client *, struct window_pane *);
3106 void	control_set_pane_off(struct client *, struct window_pane *);
3107 void	control_continue_pane(struct client *, struct window_pane *);
3108 void	control_pause_pane(struct client *, struct window_pane *);
3109 struct window_pane_offset *control_pane_offset(struct client *,
3110 	   struct window_pane *, int *);
3111 void	control_reset_offsets(struct client *);
3112 void printflike(2, 3) control_write(struct client *, const char *, ...);
3113 void	control_write_output(struct client *, struct window_pane *);
3114 int	control_all_done(struct client *);
3115 void	control_add_sub(struct client *, const char *, enum control_sub_type,
3116     	   int, const char *);
3117 void	control_remove_sub(struct client *, const char *);
3118 
3119 /* control-notify.c */
3120 void	control_notify_input(struct client *, struct window_pane *,
3121 	    const u_char *, size_t);
3122 void	control_notify_pane_mode_changed(int);
3123 void	control_notify_window_layout_changed(struct window *);
3124 void	control_notify_window_pane_changed(struct window *);
3125 void	control_notify_window_unlinked(struct session *, struct window *);
3126 void	control_notify_window_linked(struct session *, struct window *);
3127 void	control_notify_window_renamed(struct window *);
3128 void	control_notify_client_session_changed(struct client *);
3129 void	control_notify_client_detached(struct client *);
3130 void	control_notify_session_renamed(struct session *);
3131 void	control_notify_session_created(struct session *);
3132 void	control_notify_session_closed(struct session *);
3133 void	control_notify_session_window_changed(struct session *);
3134 
3135 /* session.c */
3136 extern struct sessions sessions;
3137 extern u_int next_session_id;
3138 int	session_cmp(struct session *, struct session *);
3139 RB_PROTOTYPE(sessions, session, entry, session_cmp);
3140 int		 session_alive(struct session *);
3141 struct session	*session_find(const char *);
3142 struct session	*session_find_by_id_str(const char *);
3143 struct session	*session_find_by_id(u_int);
3144 struct session	*session_create(const char *, const char *, const char *,
3145 		     struct environ *, struct options *, struct termios *);
3146 void		 session_destroy(struct session *, int,	 const char *);
3147 void		 session_add_ref(struct session *, const char *);
3148 void		 session_remove_ref(struct session *, const char *);
3149 char		*session_check_name(const char *);
3150 void		 session_update_activity(struct session *, struct timeval *);
3151 struct session	*session_next_session(struct session *);
3152 struct session	*session_previous_session(struct session *);
3153 struct winlink	*session_new(struct session *, const char *, int, char **,
3154 		     const char *, const char *, int, char **);
3155 struct winlink	*session_attach(struct session *, struct window *, int,
3156 		     char **);
3157 int		 session_detach(struct session *, struct winlink *);
3158 int		 session_has(struct session *, struct window *);
3159 int		 session_is_linked(struct session *, struct window *);
3160 int		 session_next(struct session *, int);
3161 int		 session_previous(struct session *, int);
3162 int		 session_select(struct session *, int);
3163 int		 session_last(struct session *);
3164 int		 session_set_current(struct session *, struct winlink *);
3165 struct session_group *session_group_contains(struct session *);
3166 struct session_group *session_group_find(const char *);
3167 struct session_group *session_group_new(const char *);
3168 void		 session_group_add(struct session_group *, struct session *);
3169 void		 session_group_synchronize_to(struct session *);
3170 void		 session_group_synchronize_from(struct session *);
3171 u_int		 session_group_count(struct session_group *);
3172 u_int		 session_group_attached_count(struct session_group *);
3173 void		 session_renumber_windows(struct session *);
3174 
3175 /* utf8.c */
3176 utf8_char	 utf8_build_one(u_char);
3177 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
3178 void		 utf8_to_data(utf8_char, struct utf8_data *);
3179 void		 utf8_set(struct utf8_data *, u_char);
3180 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3181 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3182 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3183 int		 utf8_isvalid(const char *);
3184 int		 utf8_strvis(char *, const char *, size_t, int);
3185 int		 utf8_stravis(char **, const char *, int);
3186 int		 utf8_stravisx(char **, const char *, size_t, int);
3187 char		*utf8_sanitize(const char *);
3188 size_t		 utf8_strlen(const struct utf8_data *);
3189 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3190 struct utf8_data *utf8_fromcstr(const char *);
3191 char		*utf8_tocstr(struct utf8_data *);
3192 u_int		 utf8_cstrwidth(const char *);
3193 char		*utf8_padcstr(const char *, u_int);
3194 char		*utf8_rpadcstr(const char *, u_int);
3195 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3196 
3197 /* procname.c */
3198 char   *get_proc_name(int, char *);
3199 char   *get_proc_cwd(int);
3200 
3201 /* log.c */
3202 void	log_add_level(void);
3203 int	log_get_level(void);
3204 void	log_open(const char *);
3205 void	log_toggle(const char *);
3206 void	log_close(void);
3207 void printflike(1, 2) log_debug(const char *, ...);
3208 __dead void printflike(1, 2) fatal(const char *, ...);
3209 __dead void printflike(1, 2) fatalx(const char *, ...);
3210 
3211 /* menu.c */
3212 #define MENU_NOMOUSE 0x1
3213 #define MENU_TAB 0x2
3214 #define MENU_STAYOPEN 0x4
3215 struct menu	*menu_create(const char *);
3216 void		 menu_add_items(struct menu *, const struct menu_item *,
3217 		    struct cmdq_item *, struct client *,
3218 		    struct cmd_find_state *);
3219 void		 menu_add_item(struct menu *, const struct menu_item *,
3220 		    struct cmdq_item *, struct client *,
3221 		    struct cmd_find_state *);
3222 void		 menu_free(struct menu *);
3223 struct menu_data *menu_prepare(struct menu *, int, struct cmdq_item *, u_int,
3224 		    u_int, struct client *, struct cmd_find_state *,
3225 		    menu_choice_cb, void *);
3226 int		 menu_display(struct menu *, int, struct cmdq_item *, u_int,
3227 		    u_int, struct client *, struct cmd_find_state *,
3228 		    menu_choice_cb, void *);
3229 struct screen	*menu_mode_cb(struct client *, void *, u_int *, u_int *);
3230 void		 menu_check_cb(struct client *, void *, u_int, u_int, u_int,
3231 		    struct overlay_ranges *);
3232 void		 menu_draw_cb(struct client *, void *,
3233 		    struct screen_redraw_ctx *);
3234 void		 menu_free_cb(struct client *, void *);
3235 int		 menu_key_cb(struct client *, void *, struct key_event *);
3236 
3237 /* popup.c */
3238 #define POPUP_CLOSEEXIT 0x1
3239 #define POPUP_CLOSEEXITZERO 0x2
3240 #define POPUP_INTERNAL 0x4
3241 typedef void (*popup_close_cb)(int, void *);
3242 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3243 int		 popup_display(int, int, struct cmdq_item *, u_int, u_int,
3244 		    u_int, u_int, struct environ *, const char *, int, char **,
3245 		    const char *, const char *, struct client *,
3246 		    struct session *, const char *, const char *,
3247 		    popup_close_cb, void *);
3248 int		 popup_editor(struct client *, const char *, size_t,
3249 		    popup_finish_edit_cb, void *);
3250 
3251 /* style.c */
3252 int		 style_parse(struct style *,const struct grid_cell *,
3253 		     const char *);
3254 const char	*style_tostring(struct style *);
3255 void		 style_add(struct grid_cell *, struct options *,
3256 		     const char *, struct format_tree *);
3257 void		 style_apply(struct grid_cell *, struct options *,
3258 		     const char *, struct format_tree *);
3259 void		 style_set(struct style *, const struct grid_cell *);
3260 void		 style_copy(struct style *, struct style *);
3261 
3262 /* spawn.c */
3263 struct winlink	*spawn_window(struct spawn_context *, char **);
3264 struct window_pane *spawn_pane(struct spawn_context *, char **);
3265 
3266 /* regsub.c */
3267 char		*regsub(const char *, const char *, const char *, int);
3268 
3269 #endif /* TMUX_H */
3270