xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 43003dfe3ad45d1698bed8a37f2b0f5b14f20d4f)
1 /* $OpenBSD: tmux.h,v 1.137 2009/10/12 17:19:47 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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 #define PROTOCOL_VERSION 5
23 
24 #include <sys/param.h>
25 #include <sys/time.h>
26 #include <sys/queue.h>
27 #include <sys/tree.h>
28 #include <sys/uio.h>
29 
30 #include <bitstring.h>
31 #include <getopt.h>
32 #include <limits.h>
33 #include <poll.h>
34 #include <signal.h>
35 #include <stdarg.h>
36 #include <stdint.h>
37 #include <stdio.h>
38 #include <termios.h>
39 
40 #include "array.h"
41 #include "imsg.h"
42 
43 extern char    *__progname;
44 extern char   **environ;
45 
46 /* Default configuration files. */
47 #define DEFAULT_CFG ".tmux.conf"
48 #define SYSTEM_CFG "/etc/tmux.conf"
49 
50 /* Default prompt history length. */
51 #define PROMPT_HISTORY 100
52 
53 /*
54  * Minimum layout cell size, NOT including separator line. The scroll region
55  * cannot be one line in height so this must be at least two.
56  */
57 #define PANE_MINIMUM 2
58 
59 /* Automatic name refresh interval, in milliseconds. */
60 #define NAME_INTERVAL 500
61 
62 /* Escape timer period, in milliseconds. */
63 #define ESCAPE_PERIOD 250
64 
65 /* Maximum poll timeout (when attached). */
66 #define POLL_TIMEOUT 50
67 
68 /*
69  * Maximum sizes of strings in message data. Don't forget to bump
70  * PROTOCOL_VERSION if any of these change!
71  */
72 #define COMMAND_LENGTH 2048	/* packed argv size */
73 #define TERMINAL_LENGTH 128	/* length of TERM environment variable */
74 #define PRINT_LENGTH 512	/* printed error/message size */
75 #define ENVIRON_LENGTH 1024	/* environment variable length */
76 
77 /* Fatal errors. */
78 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
79 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
80 
81 /* Definition to shut gcc up about unused arguments. */
82 #define unused __attribute__ ((unused))
83 
84 /* Attribute to make gcc check printf-like arguments. */
85 #define printflike1 __attribute__ ((format (printf, 1, 2)))
86 #define printflike2 __attribute__ ((format (printf, 2, 3)))
87 #define printflike3 __attribute__ ((format (printf, 3, 4)))
88 #define printflike4 __attribute__ ((format (printf, 4, 5)))
89 #define printflike5 __attribute__ ((format (printf, 5, 6)))
90 
91 /* Number of items in array. */
92 #ifndef nitems
93 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
94 #endif
95 
96 /* Buffer macros. */
97 #define BUFFER_USED(b) ((b)->size)
98 #define BUFFER_FREE(b) ((b)->space - (b)->off - (b)->size)
99 #define BUFFER_IN(b) ((b)->base + (b)->off + (b)->size)
100 #define BUFFER_OUT(b) ((b)->base + (b)->off)
101 
102 /* Buffer structure. */
103 struct buffer {
104 	u_char	*base;		/* buffer start */
105 	size_t	 space;		/* total size of buffer */
106 
107 	size_t	 size;		/* size of data in buffer */
108 	size_t	 off;		/* offset of data in buffer */
109 };
110 
111 /* Bell option values. */
112 #define BELL_NONE 0
113 #define BELL_ANY 1
114 #define BELL_CURRENT 2
115 
116 /* Key codes. ncurses defines KEY_*. Grrr. */
117 #define KEYC_NONE 0xfff
118 /* 0x1000 is base for special keys */
119 #define KEYC_ESCAPE 0x2000
120 #define KEYC_CTRL 0x4000
121 #define KEYC_SHIFT 0x8000
122 #define KEYC_PREFIX 0x10000
123 
124 enum key_code {
125 	/* Mouse key. */
126 	KEYC_MOUSE = 0x1000,
127 
128 	/* Backspace key. */
129 	KEYC_BSPACE,
130 
131 	/* Function keys. */
132 	KEYC_F1,
133 
134 	KEYC_F2,
135 	KEYC_F3,
136 	KEYC_F4,
137 	KEYC_F5,
138 	KEYC_F6,
139 	KEYC_F7,
140 	KEYC_F8,
141 	KEYC_F9,
142 	KEYC_F10,
143 	KEYC_F11,
144 	KEYC_F12,
145 	KEYC_F13,
146 	KEYC_F14,
147 	KEYC_F15,
148 	KEYC_F16,
149 	KEYC_F17,
150 	KEYC_F18,
151 	KEYC_F19,
152 	KEYC_F20,
153 	KEYC_IC,
154 	KEYC_DC,
155 	KEYC_HOME,
156 	KEYC_END,
157 	KEYC_NPAGE,
158 	KEYC_PPAGE,
159 	KEYC_BTAB,
160 
161 	/* Arrow keys. */
162 	KEYC_UP,
163 	KEYC_DOWN,
164 	KEYC_LEFT,
165 	KEYC_RIGHT,
166 
167 	/* Numeric keypad. Numbered from top-left, KPY_X. */
168 	KEYC_KP0_1,
169 	KEYC_KP0_2,
170 	KEYC_KP0_3,
171 	KEYC_KP1_0,
172 	KEYC_KP1_1,
173 	KEYC_KP1_2,
174 	KEYC_KP1_3,
175 	KEYC_KP2_0,
176 	KEYC_KP2_1,
177 	KEYC_KP2_2,
178 	KEYC_KP3_0,
179 	KEYC_KP3_1,
180 	KEYC_KP3_2,
181 	KEYC_KP3_3,
182 	KEYC_KP4_0,
183 	KEYC_KP4_2,
184 };
185 
186 /* Termcap codes. */
187 enum tty_code_code {
188 	TTYC_AX = 0,
189 	TTYC_ACSC,	/* acs_chars, ac */
190 	TTYC_BEL,	/* bell, bl */
191 	TTYC_BLINK,	/* enter_blink_mode, mb */
192 	TTYC_BOLD,	/* enter_bold_mode, md */
193 	TTYC_CIVIS,	/* cursor_invisible, vi */
194 	TTYC_CLEAR,	/* clear_screen, cl */
195 	TTYC_CNORM,	/* cursor_normal, ve */
196 	TTYC_COLORS,	/* max_colors, Co */
197 	TTYC_CSR,	/* change_scroll_region, cs */
198 	TTYC_CUB,	/* parm_left_cursor, LE */
199 	TTYC_CUB1,	/* cursor_left, le */
200 	TTYC_CUD,	/* parm_down_cursor, DO */
201 	TTYC_CUD1,	/* cursor_down, do */
202 	TTYC_CUF,	/* parm_right_cursor, RI */
203 	TTYC_CUF1,	/* cursor_right, nd */
204 	TTYC_CUP,	/* cursor_address, cm */
205 	TTYC_CUU,	/* parm_up_cursor, UP */
206 	TTYC_CUU1,	/* cursor_up, up */
207 	TTYC_DCH,	/* parm_dch, DC */
208 	TTYC_DCH1,	/* delete_character, dc */
209 	TTYC_DIM,	/* enter_dim_mode, mh */
210 	TTYC_DL,	/* parm_delete_line, DL */
211 	TTYC_DL1,	/* delete_line, dl */
212 	TTYC_EL,	/* clr_eol, ce */
213 	TTYC_EL1,	/* clr_bol, cb */
214 	TTYC_ENACS,	/* ena_acs, eA */
215 	TTYC_HOME,	/* cursor_home, ho */
216 	TTYC_HPA,	/* column_address, ch */
217 	TTYC_ICH,	/* parm_ich, IC */
218 	TTYC_ICH1,	/* insert_character, ic */
219 	TTYC_IL,	/* parm_insert_line, IL */
220 	TTYC_IL1,	/* insert_line, il */
221 	TTYC_INVIS,	/* enter_secure_mode, mk */
222 	TTYC_IS1,	/* init_1string, i1 */
223 	TTYC_IS2,	/* init_2string, i2 */
224 	TTYC_IS3,	/* init_3string, i3 */
225 	TTYC_KCBT,	/* key_btab, kB */
226 	TTYC_KCUB1,	/* key_left, kl */
227 	TTYC_KCUD1,	/* key_down, kd */
228 	TTYC_KCUF1,	/* key_right, kr */
229 	TTYC_KCUU1,	/* key_up, ku */
230 	TTYC_KDCH1,	/* key_dc, kD */
231 	TTYC_KEND,	/* key_end, ke */
232 	TTYC_KF1,	/* key_f1, k1 */
233 	TTYC_KF10,	/* key_f10, k; */
234 	TTYC_KF11,	/* key_f11, F1 */
235 	TTYC_KF12,	/* key_f12, F2 */
236 	TTYC_KF13,	/* key_f13, F3 */
237 	TTYC_KF14,	/* key_f14, F4 */
238 	TTYC_KF15,	/* key_f15, F5 */
239 	TTYC_KF16,	/* key_f16, F6 */
240 	TTYC_KF17,	/* key_f17, F7 */
241 	TTYC_KF18,	/* key_f18, F8 */
242 	TTYC_KF19,	/* key_f19, F9 */
243 	TTYC_KF2,	/* key_f2, k2 */
244 	TTYC_KF20,	/* key_f20, F10 */
245 	TTYC_KF3,	/* key_f3, k3 */
246 	TTYC_KF4,	/* key_f4, k4 */
247 	TTYC_KF5,	/* key_f5, k5 */
248 	TTYC_KF6,	/* key_f6, k6 */
249 	TTYC_KF7,	/* key_f7, k7 */
250 	TTYC_KF8,	/* key_f8, k8 */
251 	TTYC_KF9,	/* key_f9, k9 */
252 	TTYC_KHOME,	/* key_home, kh */
253 	TTYC_KICH1,	/* key_ic, kI */
254 	TTYC_KMOUS,	/* key_mouse, Km */
255 	TTYC_KNP,	/* key_npage, kN */
256 	TTYC_KPP,	/* key_ppage, kP */
257 	TTYC_OP,	/* orig_pair, op */
258 	TTYC_REV,	/* enter_reverse_mode, mr */
259 	TTYC_RI,	/* scroll_reverse, sr */
260 	TTYC_RMACS,	/* exit_alt_charset_mode */
261 	TTYC_RMCUP,	/* exit_ca_mode, te */
262 	TTYC_RMIR,	/* exit_insert_mode, ei */
263 	TTYC_RMKX,	/* keypad_local, ke */
264 	TTYC_SETAB,	/* set_a_background, AB */
265 	TTYC_SETAF,	/* set_a_foreground, AF */
266 	TTYC_SGR0,	/* exit_attribute_mode, me */
267 	TTYC_SMACS,	/* enter_alt_charset_mode, as */
268 	TTYC_SMCUP,	/* enter_ca_mode, ti */
269 	TTYC_SMIR,	/* enter_insert_mode, im */
270 	TTYC_SMKX,	/* keypad_xmit, ks */
271 	TTYC_SMSO,	/* enter_standout_mode, so */
272 	TTYC_SMUL,	/* enter_underline_mode, us */
273 	TTYC_VPA,	/* row_address, cv */
274 	TTYC_XENL,	/* eat_newline_glitch, xn */
275 };
276 #define NTTYCODE (TTYC_XENL + 1)
277 
278 /* Termcap types. */
279 enum tty_code_type {
280 	TTYCODE_NONE = 0,
281 	TTYCODE_STRING,
282 	TTYCODE_NUMBER,
283 	TTYCODE_FLAG,
284 };
285 
286 /* Termcap code. */
287 struct tty_code {
288 	enum tty_code_type	type;
289 	union {
290 		char 	       *string;
291 		int	 	number;
292 		int	 	flag;
293 	} value;
294 };
295 
296 /* Entry in terminal code table. */
297 struct tty_term_code_entry {
298 	enum tty_code_code	code;
299 	enum tty_code_type	type;
300 	const char	       *name;
301 };
302 
303 /* Message codes. */
304 enum msgtype {
305 	MSG_COMMAND,
306 	MSG_DETACH,
307 	MSG_ERROR,
308 	MSG_EXIT,
309 	MSG_EXITED,
310 	MSG_EXITING,
311 	MSG_IDENTIFY,
312 	MSG_PRINT,
313 	MSG_READY,
314 	MSG_RESIZE,
315 	MSG_SHUTDOWN,
316 	MSG_SUSPEND,
317 	MSG_VERSION,
318 	MSG_WAKEUP,
319 	MSG_ENVIRON,
320 	MSG_UNLOCK,
321 	MSG_LOCK,
322 	MSG_SHELL
323 };
324 
325 /*
326  * Message data.
327  *
328  * Don't forget to bump PROTOCOL_VERSION if any of these change!
329  */
330 struct msg_print_data {
331 	char		msg[PRINT_LENGTH];
332 };
333 
334 struct msg_command_data {
335 	pid_t		pid;			/* pid from $TMUX or -1 */
336 	u_int		idx;			/* index from $TMUX */
337 
338 	int		argc;
339 	char		argv[COMMAND_LENGTH];
340 };
341 
342 struct msg_identify_data {
343 	char		cwd[MAXPATHLEN];
344 
345 	char		term[TERMINAL_LENGTH];
346 
347 #define IDENTIFY_UTF8 0x1
348 #define IDENTIFY_256COLOURS 0x2
349 #define IDENTIFY_88COLOURS 0x4
350 #define IDENTIFY_HASDEFAULTS 0x8
351 	int		flags;
352 };
353 
354 struct msg_lock_data {
355 	char	       	cmd[COMMAND_LENGTH];
356 };
357 
358 struct msg_environ_data {
359 	char	     	var[ENVIRON_LENGTH];
360 };
361 
362 struct msg_shell_data {
363 	char	       	shell[MAXPATHLEN];
364 };
365 
366 /* Mode key commands. */
367 enum mode_key_cmd {
368 	MODEKEY_NONE,
369 	MODEKEY_OTHER,
370 
371 	/* Editing keys. */
372 	MODEKEYEDIT_BACKSPACE,
373 	MODEKEYEDIT_CANCEL,
374 	MODEKEYEDIT_COMPLETE,
375 	MODEKEYEDIT_CURSORLEFT,
376 	MODEKEYEDIT_CURSORRIGHT,
377 	MODEKEYEDIT_DELETE,
378 	MODEKEYEDIT_DELETELINE,
379 	MODEKEYEDIT_DELETETOENDOFLINE,
380 	MODEKEYEDIT_ENDOFLINE,
381 	MODEKEYEDIT_ENTER,
382 	MODEKEYEDIT_HISTORYDOWN,
383 	MODEKEYEDIT_HISTORYUP,
384 	MODEKEYEDIT_PASTE,
385 	MODEKEYEDIT_STARTOFLINE,
386 	MODEKEYEDIT_SWITCHMODE,
387 	MODEKEYEDIT_SWITCHMODEAPPEND,
388 	MODEKEYEDIT_TRANSPOSECHARS,
389 
390 	/* Menu (choice) keys. */
391 	MODEKEYCHOICE_CANCEL,
392 	MODEKEYCHOICE_CHOOSE,
393 	MODEKEYCHOICE_DOWN,
394 	MODEKEYCHOICE_PAGEDOWN,
395 	MODEKEYCHOICE_PAGEUP,
396 	MODEKEYCHOICE_UP,
397 
398 	/* Copy keys. */
399 	MODEKEYCOPY_BACKTOINDENTATION,
400 	MODEKEYCOPY_CANCEL,
401 	MODEKEYCOPY_CLEARSELECTION,
402 	MODEKEYCOPY_COPYSELECTION,
403 	MODEKEYCOPY_DOWN,
404 	MODEKEYCOPY_ENDOFLINE,
405 	MODEKEYCOPY_GOTOLINE,
406 	MODEKEYCOPY_HALFPAGEDOWN,
407 	MODEKEYCOPY_HALFPAGEUP,
408 	MODEKEYCOPY_LEFT,
409 	MODEKEYCOPY_NEXTPAGE,
410 	MODEKEYCOPY_NEXTWORD,
411 	MODEKEYCOPY_PREVIOUSPAGE,
412 	MODEKEYCOPY_PREVIOUSWORD,
413 	MODEKEYCOPY_RIGHT,
414 	MODEKEYCOPY_SCROLLDOWN,
415 	MODEKEYCOPY_SCROLLUP,
416 	MODEKEYCOPY_SEARCHAGAIN,
417 	MODEKEYCOPY_SEARCHDOWN,
418 	MODEKEYCOPY_SEARCHUP,
419 	MODEKEYCOPY_STARTOFLINE,
420 	MODEKEYCOPY_STARTSELECTION,
421 	MODEKEYCOPY_UP,
422 };
423 
424 /* Entry in the default mode key tables. */
425 struct mode_key_entry {
426 	int			key;
427 
428 	/*
429 	 * Editing mode for vi: 0 is edit mode, keys not in the table are
430 	 * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
431 	 * are returned as MODEKEY_NONE. This is also matched on, allowing some
432 	 * keys to be bound in edit mode.
433 	 */
434 	int			mode;
435 	enum mode_key_cmd	cmd;
436 };
437 
438 /* Data required while mode keys are in use. */
439 struct mode_key_data {
440 	struct mode_key_tree   *tree;
441 	int			mode;
442 };
443 #define MODEKEY_EMACS 0
444 #define MODEKEY_VI 1
445 
446 /* Binding between a key and a command. */
447 struct mode_key_binding {
448 	int			key;
449 
450 	int			mode;
451 	enum mode_key_cmd	cmd;
452 
453 	SPLAY_ENTRY(mode_key_binding) entry;
454 };
455 SPLAY_HEAD(mode_key_tree, mode_key_binding);
456 
457 /* Command to string mapping. */
458 struct mode_key_cmdstr {
459 	enum mode_key_cmd      	 cmd;
460 	const char		*name;
461 };
462 
463 /* Named mode key table description. */
464 struct mode_key_table {
465 	const char	       	*name;
466 	struct mode_key_cmdstr	*cmdstr;
467 	struct mode_key_tree	*tree;
468 	const struct mode_key_entry *table;	/* default entries */
469 };
470 
471 /* Modes. */
472 #define MODE_CURSOR 0x1
473 #define MODE_INSERT 0x2
474 #define MODE_KCURSOR 0x4
475 #define MODE_KKEYPAD 0x8
476 #define MODE_MOUSE 0x10
477 
478 /* Grid output. */
479 #if defined(DEBUG) && \
480     ((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
481      (defined(__GNUC__) && __GNUC__ >= 3))
482 #define GRID_DEBUG(gd, fmt, ...) log_debug2("%s: (sx=%u, sy=%u, hsize=%u) " \
483     fmt, __func__, (gd)->sx, (gd)->sy, (gd)->hsize, ## __VA_ARGS__)
484 #else
485 #define GRID_DEBUG(...)
486 #endif
487 
488 /* Grid attributes. */
489 #define GRID_ATTR_BRIGHT 0x1
490 #define GRID_ATTR_DIM 0x2
491 #define GRID_ATTR_UNDERSCORE 0x4
492 #define GRID_ATTR_BLINK 0x8
493 #define GRID_ATTR_REVERSE 0x10
494 #define GRID_ATTR_HIDDEN 0x20
495 #define GRID_ATTR_ITALICS 0x40
496 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
497 
498 /* Grid flags. */
499 #define GRID_FLAG_FG256 0x1
500 #define GRID_FLAG_BG256 0x2
501 #define GRID_FLAG_PADDING 0x4
502 #define GRID_FLAG_UTF8 0x8
503 
504 /* Grid line flags. */
505 #define GRID_LINE_WRAPPED 0x1
506 
507 /* Grid cell data. */
508 struct grid_cell {
509 	u_char	attr;
510 	u_char	flags;
511 	u_char	fg;
512 	u_char	bg;
513 	u_char	data;
514 } __packed;
515 
516 /* Grid cell UTF-8 data. Used instead of data in grid_cell for UTF-8 cells. */
517 #define UTF8_SIZE 8
518 struct grid_utf8 {
519 	u_char	width;
520 	u_char	data[UTF8_SIZE];
521 } __packed;
522 
523 /* Grid line. */
524 struct grid_line {
525 	u_int	cellsize;
526 	struct grid_cell *celldata;
527 
528 	u_int	utf8size;
529 	struct grid_utf8 *utf8data;
530 
531 	int	flags;
532 } __packed;
533 
534 /* Entire grid of cells. */
535 struct grid {
536 	int	flags;
537 #define GRID_HISTORY 0x1	/* scroll lines into history */
538 
539 	u_int	sx;
540 	u_int	sy;
541 
542 	u_int	hsize;
543 	u_int	hlimit;
544 
545 	struct grid_line *linedata;
546 };
547 
548 /* Option data structures. */
549 struct options_entry {
550 	char		*name;
551 
552 	enum {
553 		OPTIONS_STRING,
554 		OPTIONS_NUMBER,
555 		OPTIONS_DATA,
556 	} type;
557 
558 	char		*str;
559 	long long	 num;
560 	void		*data;
561 
562 	void		 (*freefn)(void *);
563 
564 	SPLAY_ENTRY(options_entry) entry;
565 };
566 
567 struct options {
568 	SPLAY_HEAD(options_tree, options_entry) tree;
569 	struct options	*parent;
570 };
571 
572 /* Key list for prefix option. */
573 ARRAY_DECL(keylist, int);
574 
575 /* Scheduled job. */
576 struct job {
577 	char		*cmd;
578 	pid_t		 pid;
579 	int		 status;
580 
581 	struct client	*client;
582 
583 	int		 fd;
584 	struct buffer	*out;
585 
586 	void		(*callbackfn)(struct job *);
587 	void		(*freefn)(void *);
588 	void		*data;
589 
590 	int		 flags;
591 #define JOB_DONE 0x1
592 
593 	RB_ENTRY(job)	 entry;
594 	SLIST_ENTRY(job) lentry;
595 };
596 RB_HEAD(jobs, job);
597 SLIST_HEAD(joblist, job);
598 
599 /* Screen selection. */
600 struct screen_sel {
601 	int		 flag;
602 
603 	u_int		 sx;
604 	u_int		 sy;
605 
606 	u_int		 ex;
607 	u_int		 ey;
608 
609 	struct grid_cell cell;
610 };
611 
612 /* Virtual screen. */
613 struct screen {
614 	char		*title;
615 
616 	struct grid     *grid;		/* grid data */
617 
618 	u_int		 cx;		/* cursor x */
619 	u_int		 cy;		/* cursor y */
620 
621 	u_int		 rupper;	/* scroll region top */
622 	u_int		 rlower;	/* scroll region bottom */
623 
624 	int		 mode;
625 
626 	bitstr_t      	*tabs;
627 
628 	struct screen_sel sel;
629 };
630 
631 /* Screen write context. */
632 struct screen_write_ctx {
633 	struct window_pane *wp;
634 	struct screen	*s;
635 };
636 
637 /* Screen size. */
638 #define screen_size_x(s) ((s)->grid->sx)
639 #define screen_size_y(s) ((s)->grid->sy)
640 #define screen_hsize(s) ((s)->grid->hsize)
641 #define screen_hlimit(s) ((s)->grid->hlimit)
642 
643 /* Input parser sequence argument. */
644 struct input_arg {
645 	u_char		 data[64];
646 	size_t		 used;
647 };
648 
649 /* Input parser context. */
650 struct input_ctx {
651 	struct window_pane *wp;
652 	struct screen_write_ctx ctx;
653 
654 	u_char		*buf;
655 	size_t		 len;
656 	size_t		 off;
657 	size_t		 was;
658 
659 	struct grid_cell cell;
660 
661 	struct grid_cell saved_cell;
662 	u_int		 saved_cx;
663 	u_int		 saved_cy;
664 
665 #define MAXSTRINGLEN	1024
666 	u_char		*string_buf;
667 	size_t		 string_len;
668 	int		 string_type;
669 #define STRING_SYSTEM 0
670 #define STRING_APPLICATION 1
671 #define STRING_NAME 2
672 
673 	u_char		 utf8_buf[4];
674 	u_int		 utf8_len;
675 	u_int		 utf8_off;
676 
677 	u_char		 intermediate;
678 	void 		*(*state)(u_char, struct input_ctx *);
679 
680 	u_char		 private;
681 	ARRAY_DECL(, struct input_arg) args;
682 };
683 
684 /*
685  * Window mode. Windows can be in several modes and this is used to call the
686  * right function to handle input and output.
687  */
688 struct client;
689 struct window;
690 struct mouse_event;
691 struct window_mode {
692 	struct screen *(*init)(struct window_pane *);
693 	void	(*free)(struct window_pane *);
694 	void	(*resize)(struct window_pane *, u_int, u_int);
695 	void	(*key)(struct window_pane *, struct client *, int);
696 	void	(*mouse)(struct window_pane *,
697 	    	    struct client *, struct mouse_event *);
698 	void	(*timer)(struct window_pane *);
699 };
700 
701 /* Child window structure. */
702 struct window_pane {
703 	struct window	*window;
704 	struct layout_cell *layout_cell;
705 
706 	u_int		 sx;
707 	u_int		 sy;
708 
709 	u_int		 xoff;
710 	u_int		 yoff;
711 
712 	int		 flags;
713 #define PANE_REDRAW 0x1
714 
715 	char		*cmd;
716 	char		*shell;
717 	char		*cwd;
718 
719 	pid_t		 pid;
720 	int		 fd;
721 	char		 tty[TTY_NAME_MAX];
722 	struct buffer	*in;
723 	struct buffer	*out;
724 
725 	struct input_ctx ictx;
726 
727 	int		 pipe_fd;
728 	struct buffer	*pipe_buf;
729 	size_t		 pipe_off;
730 
731 	struct screen	*screen;
732 	struct screen	 base;
733 
734 	/* Saved in alternative screen mode. */
735  	u_int		 saved_cx;
736  	u_int		 saved_cy;
737 	struct grid	*saved_grid;
738 	struct grid_cell saved_cell;
739 
740 	const struct window_mode *mode;
741 	void		*modedata;
742 
743 	TAILQ_ENTRY(window_pane) entry;
744 };
745 TAILQ_HEAD(window_panes, window_pane);
746 
747 /* Window structure. */
748 struct window {
749 	char		*name;
750 	struct timeval	 name_timer;
751 
752 	struct window_pane *active;
753 	struct window_panes panes;
754 
755 	int		 lastlayout;
756 	struct layout_cell *layout_root;
757 
758 	u_int		 sx;
759 	u_int		 sy;
760 
761 	int		 flags;
762 #define WINDOW_BELL 0x1
763 #define WINDOW_HIDDEN 0x2
764 #define WINDOW_ACTIVITY 0x4
765 #define WINDOW_CONTENT 0x8
766 #define WINDOW_REDRAW 0x10
767 
768 	struct options	 options;
769 
770 	u_int		 references;
771 };
772 ARRAY_DECL(windows, struct window *);
773 
774 /* Entry on local window list. */
775 struct winlink {
776 	int		 idx;
777 	struct window	*window;
778 
779 	RB_ENTRY(winlink) entry;
780 	TAILQ_ENTRY(winlink) sentry;
781 };
782 RB_HEAD(winlinks, winlink);
783 TAILQ_HEAD(winlink_stack, winlink);
784 
785 /* Layout direction. */
786 enum layout_type {
787 	LAYOUT_LEFTRIGHT,
788 	LAYOUT_TOPBOTTOM,
789 	LAYOUT_WINDOWPANE
790 };
791 
792 /* Layout cells queue. */
793 TAILQ_HEAD(layout_cells, layout_cell);
794 
795 /* Layout cell. */
796 struct layout_cell {
797 	enum layout_type type;
798 
799 	struct layout_cell *parent;
800 
801 	u_int		 sx;
802 	u_int		 sy;
803 
804 	u_int		 xoff;
805 	u_int		 yoff;
806 
807 	struct window_pane *wp;
808 	struct layout_cells cells;
809 
810 	TAILQ_ENTRY(layout_cell) entry;
811 };
812 
813 /* Paste buffer. */
814 struct paste_buffer {
815      	char		*data;
816 	size_t		 size;
817 	struct timeval	 tv;
818 };
819 ARRAY_DECL(paste_stack, struct paste_buffer *);
820 
821 /* Environment variable. */
822 struct environ_entry {
823 	char		*name;
824 	char		*value;
825 
826 	RB_ENTRY(environ_entry) entry;
827 };
828 RB_HEAD(environ, environ_entry);
829 
830 /* Client session. */
831 struct session_alert {
832 	struct winlink	*wl;
833 	int		 type;
834 
835 	SLIST_ENTRY(session_alert) entry;
836 };
837 
838 struct session_group {
839 	TAILQ_HEAD(, session) sessions;
840 
841 	TAILQ_ENTRY(session_group) entry;
842 };
843 TAILQ_HEAD(session_groups, session_group);
844 
845 struct session {
846 	char		*name;
847 	struct timeval	 tv;
848 	time_t		 activity;
849 
850 	u_int		 sx;
851 	u_int		 sy;
852 
853 	struct winlink	*curw;
854 	struct winlink_stack lastw;
855 	struct winlinks	 windows;
856 
857 	struct options	 options;
858 
859 	struct paste_stack buffers;
860 
861 	SLIST_HEAD(, session_alert) alerts;
862 
863 #define SESSION_UNATTACHED 0x1	/* not attached to any clients */
864 #define SESSION_DEAD 0x2
865 	int		 flags;
866 
867 	struct termios	*tio;
868 
869 	struct environ	 environ;
870 
871 	int		 references;
872 
873 	TAILQ_ENTRY(session) gentry;
874 };
875 ARRAY_DECL(sessions, struct session *);
876 
877 /* TTY information. */
878 struct tty_key {
879 	int	 	 key;
880 	char		*string;
881 
882 	int		 flags;
883 #define TTYKEY_CTRL 0x1
884 #define TTYKEY_RAW 0x2
885 
886 	RB_ENTRY(tty_key) entry;
887 };
888 
889 struct tty_term {
890 	char		*name;
891 	u_int		 references;
892 
893 	struct tty_code	 codes[NTTYCODE];
894 
895 #define TERM_HASDEFAULTS 0x1
896 #define TERM_256COLOURS 0x2
897 #define TERM_88COLOURS 0x4
898 #define TERM_EARLYWRAP 0x8
899 	int		 flags;
900 
901 	SLIST_ENTRY(tty_term) entry;
902 };
903 SLIST_HEAD(tty_terms, tty_term);
904 
905 struct tty {
906 	char		*path;
907 
908         u_int            sx;
909         u_int            sy;
910 
911 	u_int		 cx;
912 	u_int		 cy;
913 
914 	int		 mode;
915 
916 	u_int		 rlower;
917 	u_int		 rupper;
918 
919 	char		*termname;
920 	struct tty_term	*term;
921 
922 	int		 fd;
923 	struct buffer	*in;
924 	struct buffer	*out;
925 
926 	int		 log_fd;
927 
928 	struct termios   tio;
929 
930 	struct grid_cell cell;
931 
932 	u_char		 acs[UCHAR_MAX + 1];
933 
934 #define TTY_NOCURSOR 0x1
935 #define TTY_FREEZE 0x2
936 #define TTY_ESCAPE 0x4
937 #define TTY_UTF8 0x8
938 #define TTY_STARTED 0x10
939 #define TTY_OPENED 0x20
940 	int    		 flags;
941 
942 	int		 term_flags;
943 
944 	struct timeval	 key_timer;
945 
946 	size_t		 ksize;	/* maximum key size */
947 	RB_HEAD(tty_keys, tty_key) ktree;
948 };
949 
950 /* TTY command context and function pointer. */
951 struct tty_ctx {
952 	struct window_pane *wp;
953 
954 	const struct grid_cell *cell;
955 	const struct grid_utf8 *utf8;
956 
957 	u_int		 num;
958 	void		*ptr;
959 
960 	/*
961 	 * Cursor and region position before the screen was updated - this is
962 	 * where the command should be applied; the values in the screen have
963 	 * already been updated.
964 	 */
965 	u_int		 ocx;
966 	u_int		 ocy;
967 
968 	u_int		 orupper;
969 	u_int		 orlower;
970 };
971 
972 /* Mouse input. */
973 struct mouse_event {
974 	u_char	b;
975 	u_char	x;
976 	u_char	y;
977 };
978 
979 /* Client connection. */
980 struct client {
981 	struct imsgbuf	 ibuf;
982 	struct timeval	 tv;
983 
984 	struct environ	 environ;
985 
986 	char		*title;
987 	char		*cwd;
988 
989 	struct tty 	 tty;
990 	struct timeval	 repeat_timer;
991 
992 	struct timeval	 status_timer;
993 	struct jobs	 status_jobs;
994 	struct screen	 status;
995 
996 #define CLIENT_TERMINAL 0x1
997 #define CLIENT_PREFIX 0x2
998 #define CLIENT_MOUSE 0x4
999 #define CLIENT_REDRAW 0x8
1000 #define CLIENT_STATUS 0x10
1001 #define CLIENT_REPEAT 0x20	/* allow command to repeat within repeat time */
1002 #define CLIENT_SUSPENDED 0x40
1003 #define CLIENT_BAD 0x80
1004 #define CLIENT_IDENTIFY 0x100
1005 #define CLIENT_DEAD 0x200
1006 	int		 flags;
1007 
1008 	struct timeval	 identify_timer;
1009 
1010 	char		*message_string;
1011 	struct timeval	 message_timer;
1012 
1013 	char		*prompt_string;
1014 	char		*prompt_buffer;
1015 	size_t		 prompt_index;
1016 	int		 (*prompt_callbackfn)(void *, const char *);
1017 	void		 (*prompt_freefn)(void *);
1018 	void		*prompt_data;
1019 
1020 #define PROMPT_SINGLE 0x1
1021 	int		 prompt_flags;
1022 
1023 	u_int		 prompt_hindex;
1024 	ARRAY_DECL(, char *) prompt_hdata;
1025 
1026 	struct mode_key_data prompt_mdata;
1027 
1028 	struct session	*session;
1029 
1030 	int		 references;
1031 };
1032 ARRAY_DECL(clients, struct client *);
1033 
1034 /* Client context. */
1035 struct client_ctx {
1036 	struct imsgbuf	 ibuf;
1037 
1038 	enum {
1039 		CCTX_DETACH,
1040 		CCTX_EXIT,
1041 		CCTX_DIED,
1042 		CCTX_SHUTDOWN
1043 	} exittype;
1044 	const char	*errstr;
1045 };
1046 
1047 /* Key/command line command. */
1048 struct cmd_ctx {
1049 	/*
1050 	 * curclient is the client where this command was executed if inside
1051 	 * tmux. This is NULL if the command came from the command-line.
1052 	 *
1053 	 * cmdclient is the client which sent the MSG_COMMAND to the server, if
1054 	 * any. This is NULL unless the command came from the command-line.
1055 	 *
1056 	 * cmdclient and curclient may both be NULL if the command is in the
1057 	 * configuration file.
1058 	 */
1059 	struct client  *curclient;
1060 	struct client  *cmdclient;
1061 
1062 	struct msg_command_data	*msgdata;
1063 
1064 	/* gcc2 doesn't understand attributes on function pointers... */
1065 #if defined(__GNUC__) && __GNUC__ >= 3
1066 	void printflike2 (*print)(struct cmd_ctx *, const char *, ...);
1067 	void printflike2 (*info)(struct cmd_ctx *, const char *, ...);
1068 	void printflike2 (*error)(struct cmd_ctx *, const char *, ...);
1069 #else
1070 	void (*print)(struct cmd_ctx *, const char *, ...);
1071 	void (*info)(struct cmd_ctx *, const char *, ...);
1072 	void (*error)(struct cmd_ctx *, const char *, ...);
1073 #endif
1074 };
1075 
1076 struct cmd {
1077 	const struct cmd_entry *entry;
1078 	void	       	*data;
1079 
1080 	TAILQ_ENTRY(cmd) qentry;
1081 };
1082 TAILQ_HEAD(cmd_list, cmd);
1083 
1084 struct cmd_entry {
1085 	const char	*name;
1086 	const char	*alias;
1087 	const char	*usage;
1088 
1089 #define CMD_STARTSERVER 0x1
1090 #define CMD_CANTNEST 0x2
1091 #define CMD_SENDENVIRON 0x4
1092 #define CMD_ARG1 0x8
1093 #define CMD_ARG01 0x10
1094 #define CMD_ARG2 0x20
1095 #define CMD_ARG12 0x40
1096 	int		 flags;
1097 
1098 #define CMD_CHFLAG(flag) \
1099 	((flag) >= 'a' && (flag) <= 'z' ? 1ULL << ((flag) - 'a') :	\
1100 	(flag) >= 'A' && (flag) <= 'Z' ? 1ULL << (26 + (flag) - 'A') : 0)
1101 	uint64_t	 chflags;
1102 
1103 	void		 (*init)(struct cmd *, int);
1104 	int		 (*parse)(struct cmd *, int, char **, char **);
1105 	int		 (*exec)(struct cmd *, struct cmd_ctx *);
1106 	void		 (*free)(struct cmd *);
1107 	size_t 		 (*print)(struct cmd *, char *, size_t);
1108 };
1109 
1110 /* Generic command data. */
1111 struct cmd_target_data {
1112 	uint64_t chflags;
1113 	char	*target;
1114 	char	*arg;
1115 	char	*arg2;
1116 };
1117 
1118 struct cmd_srcdst_data {
1119 	uint64_t chflags;
1120 	char	*src;
1121 	char	*dst;
1122 	char	*arg;
1123 	char	*arg2;
1124 };
1125 
1126 struct cmd_buffer_data {
1127 	uint64_t chflags;
1128 	char	*target;
1129 	int	 buffer;
1130 	char	*arg;
1131 	char	*arg2;
1132 };
1133 
1134 /* Key binding. */
1135 struct key_binding {
1136 	int		 key;
1137 	struct cmd_list	*cmdlist;
1138 	int		 can_repeat;
1139 
1140 	SPLAY_ENTRY(key_binding) entry;
1141 };
1142 SPLAY_HEAD(key_bindings, key_binding);
1143 
1144 /* Set/display option data. */
1145 struct set_option_entry {
1146 	const char	*name;
1147 	enum {
1148 		SET_OPTION_STRING,
1149 		SET_OPTION_NUMBER,
1150 		SET_OPTION_KEYS,
1151 		SET_OPTION_COLOUR,
1152 		SET_OPTION_ATTRIBUTES,
1153 		SET_OPTION_FLAG,
1154 		SET_OPTION_CHOICE
1155 	} type;
1156 
1157 	u_int		 minimum;
1158 	u_int		 maximum;
1159 
1160 	const char     **choices;
1161 };
1162 extern const struct set_option_entry set_option_table[];
1163 extern const struct set_option_entry set_window_option_table[];
1164 
1165 /* tmux.c */
1166 extern volatile sig_atomic_t sigwinch;
1167 extern volatile sig_atomic_t sigterm;
1168 extern volatile sig_atomic_t sigcont;
1169 extern volatile sig_atomic_t sigchld;
1170 extern volatile sig_atomic_t sigusr1;
1171 extern volatile sig_atomic_t sigusr2;
1172 extern struct options global_s_options;
1173 extern struct options global_w_options;
1174 extern struct environ global_environ;
1175 extern char	*cfg_file;
1176 extern int	 debug_level;
1177 extern int	 be_quiet;
1178 extern time_t	 start_time;
1179 extern char 	*socket_path;
1180 extern int	 login_shell;
1181 void		 logfile(const char *);
1182 void		 siginit(void);
1183 void		 sigreset(void);
1184 void		 sighandler(int);
1185 const char	*getshell(void);
1186 int		 checkshell(const char *);
1187 int		 areshell(const char *);
1188 
1189 /* cfg.c */
1190 int		 load_cfg(const char *, struct cmd_ctx *, char **);
1191 
1192 /* mode-key.c */
1193 extern const struct mode_key_table mode_key_tables[];
1194 extern struct mode_key_tree mode_key_tree_vi_edit;
1195 extern struct mode_key_tree mode_key_tree_vi_choice;
1196 extern struct mode_key_tree mode_key_tree_vi_copy;
1197 extern struct mode_key_tree mode_key_tree_emacs_edit;
1198 extern struct mode_key_tree mode_key_tree_emacs_choice;
1199 extern struct mode_key_tree mode_key_tree_emacs_copy;
1200 int	mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1201 SPLAY_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1202 const char *mode_key_tostring(struct mode_key_cmdstr *r, enum mode_key_cmd);
1203 enum mode_key_cmd mode_key_fromstring(struct mode_key_cmdstr *, const char *);
1204 const struct mode_key_table *mode_key_findtable(const char *);
1205 void	mode_key_init_trees(void);
1206 void	mode_key_free_trees(void);
1207 void	mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1208 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int);
1209 
1210 /* options.c */
1211 int	options_cmp(struct options_entry *, struct options_entry *);
1212 SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1213 void	options_init(struct options *, struct options *);
1214 void	options_free(struct options *);
1215 struct options_entry *options_find1(struct options *, const char *);
1216 struct options_entry *options_find(struct options *, const char *);
1217 void	options_remove(struct options *, const char *);
1218 struct options_entry *printflike3 options_set_string(
1219     	    struct options *, const char *, const char *, ...);
1220 char   *options_get_string(struct options *, const char *);
1221 struct options_entry *options_set_number(
1222     	    struct options *, const char *, long long);
1223 long long options_get_number(struct options *, const char *);
1224 struct options_entry *options_set_data(
1225     	    struct options *, const char *, void *, void (*)(void *));
1226 void   *options_get_data(struct options *, const char *);
1227 
1228 /* job.c */
1229 extern struct joblist all_jobs;
1230 int	job_cmp(struct job *, struct job *);
1231 RB_PROTOTYPE(jobs, job, entry, job_cmp);
1232 void	job_tree_init(struct jobs *);
1233 void	job_tree_free(struct jobs *);
1234 u_int	job_tree_size(struct jobs *);
1235 struct job *job_get(struct jobs *, const char *);
1236 struct job *job_add(struct jobs *, struct client *,
1237 	    const char *, void (*)(struct job *), void (*)(void *), void *);
1238 void	job_free(struct job *);
1239 int	job_run(struct job *);
1240 void	job_kill(struct job *);
1241 
1242 /* environ.c */
1243 int	environ_cmp(struct environ_entry *, struct environ_entry *);
1244 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1245 void	environ_init(struct environ *);
1246 void	environ_free(struct environ *);
1247 void	environ_copy(struct environ *, struct environ *);
1248 struct environ_entry *environ_find(struct environ *, const char *);
1249 void	environ_set(struct environ *, const char *, const char *);
1250 void	environ_put(struct environ *, const char *);
1251 void	environ_unset(struct environ *, const char *);
1252 void 	environ_update(const char *, struct environ *, struct environ *);
1253 
1254 /* tty.c */
1255 void	tty_raw(struct tty *, const char *);
1256 u_char	tty_get_acs(struct tty *, u_char);
1257 void	tty_attributes(struct tty *, const struct grid_cell *);
1258 void	tty_reset(struct tty *);
1259 void	tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1260 void	tty_region(struct tty *, u_int, u_int);
1261 void	tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1262 void	tty_cursor(struct tty *, u_int, u_int);
1263 void	tty_putcode(struct tty *, enum tty_code_code);
1264 void	tty_putcode1(struct tty *, enum tty_code_code, int);
1265 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
1266 void	tty_puts(struct tty *, const char *);
1267 void	tty_putc(struct tty *, u_char);
1268 void	tty_pututf8(struct tty *, const struct grid_utf8 *);
1269 void	tty_init(struct tty *, int, char *);
1270 void	tty_resize(struct tty *);
1271 void	tty_start_tty(struct tty *);
1272 void	tty_stop_tty(struct tty *);
1273 void	tty_set_title(struct tty *, const char *);
1274 void	tty_update_mode(struct tty *, int);
1275 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1276 int	tty_open(struct tty *, const char *, char **);
1277 void	tty_close(struct tty *);
1278 void	tty_free(struct tty *);
1279 void	tty_write(void (*)(
1280 	    struct tty *, const struct tty_ctx *), const struct tty_ctx *);
1281 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1282 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
1283 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1284 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1285 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1286 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1287 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1288 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1289 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1290 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1291 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1292 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1293 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1294 void	tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1295 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1296 
1297 /* tty-term.c */
1298 extern struct tty_terms tty_terms;
1299 extern struct tty_term_code_entry tty_term_codes[NTTYCODE];
1300 struct tty_term *tty_term_find(char *, int, const char *, char **);
1301 void 		 tty_term_free(struct tty_term *);
1302 int		 tty_term_has(struct tty_term *, enum tty_code_code);
1303 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
1304 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
1305 const char	*tty_term_string2(
1306     		     struct tty_term *, enum tty_code_code, int, int);
1307 int		 tty_term_number(struct tty_term *, enum tty_code_code);
1308 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
1309 
1310 /* tty-keys.c */
1311 int	tty_keys_cmp(struct tty_key *, struct tty_key *);
1312 RB_PROTOTYPE(tty_keys, tty_key, entry, tty_keys_cmp);
1313 void	tty_keys_init(struct tty *);
1314 void	tty_keys_free(struct tty *);
1315 int	tty_keys_next(struct tty *, int *, struct mouse_event *);
1316 
1317 /* options-cmd.c */
1318 const char *set_option_print(
1319     	    const struct set_option_entry *, struct options_entry *);
1320 void	set_option_string(struct cmd_ctx *,
1321 	    struct options *, const struct set_option_entry *, char *, int);
1322 void	set_option_number(struct cmd_ctx *,
1323     	    struct options *, const struct set_option_entry *, char *);
1324 void	set_option_keys(struct cmd_ctx *,
1325     	    struct options *, const struct set_option_entry *, char *);
1326 void	set_option_colour(struct cmd_ctx *,
1327     	    struct options *, const struct set_option_entry *, char *);
1328 void	set_option_attributes(struct cmd_ctx *,
1329     	    struct options *, const struct set_option_entry *, char *);
1330 void	set_option_flag(struct cmd_ctx *,
1331     	    struct options *, const struct set_option_entry *, char *);
1332 void	set_option_choice(struct cmd_ctx *,
1333     	    struct options *, const struct set_option_entry *, char *);
1334 
1335 /* paste.c */
1336 void		 paste_init_stack(struct paste_stack *);
1337 void		 paste_free_stack(struct paste_stack *);
1338 struct paste_buffer *paste_walk_stack(struct paste_stack *, uint *);
1339 struct paste_buffer *paste_get_top(struct paste_stack *);
1340 struct paste_buffer *paste_get_index(struct paste_stack *, u_int);
1341 int	     	 paste_free_top(struct paste_stack *);
1342 int		 paste_free_index(struct paste_stack *, u_int);
1343 void		 paste_add(struct paste_stack *, u_char *, size_t, u_int);
1344 int		 paste_replace(struct paste_stack *, u_int, u_char *, size_t);
1345 
1346 /* clock.c */
1347 extern const char clock_table[14][5][5];
1348 void		 clock_draw(struct screen_write_ctx *, u_int, int);
1349 
1350 /* cmd.c */
1351 int		 cmd_pack_argv(int, char **, char *, size_t);
1352 int		 cmd_unpack_argv(char *, size_t, int, char ***);
1353 void		 cmd_free_argv(int, char **);
1354 struct cmd	*cmd_parse(int, char **, char **);
1355 int		 cmd_exec(struct cmd *, struct cmd_ctx *);
1356 void		 cmd_free(struct cmd *);
1357 size_t		 cmd_print(struct cmd *, char *, size_t);
1358 struct session	*cmd_current_session(struct cmd_ctx *);
1359 struct client	*cmd_find_client(struct cmd_ctx *, const char *);
1360 struct session	*cmd_find_session(struct cmd_ctx *, const char *);
1361 struct winlink	*cmd_find_window(
1362 		     struct cmd_ctx *, const char *, struct session **);
1363 int		 cmd_find_index(
1364 		     struct cmd_ctx *, const char *, struct session **);
1365 struct winlink	*cmd_find_pane(struct cmd_ctx *,
1366 		     const char *, struct session **, struct window_pane **);
1367 char		*cmd_template_replace(char *, const char *, int);
1368 extern const struct cmd_entry *cmd_table[];
1369 extern const struct cmd_entry cmd_attach_session_entry;
1370 extern const struct cmd_entry cmd_bind_key_entry;
1371 extern const struct cmd_entry cmd_break_pane_entry;
1372 extern const struct cmd_entry cmd_choose_client_entry;
1373 extern const struct cmd_entry cmd_choose_session_entry;
1374 extern const struct cmd_entry cmd_choose_window_entry;
1375 extern const struct cmd_entry cmd_clear_history_entry;
1376 extern const struct cmd_entry cmd_clock_mode_entry;
1377 extern const struct cmd_entry cmd_command_prompt_entry;
1378 extern const struct cmd_entry cmd_confirm_before_entry;
1379 extern const struct cmd_entry cmd_copy_buffer_entry;
1380 extern const struct cmd_entry cmd_copy_mode_entry;
1381 extern const struct cmd_entry cmd_delete_buffer_entry;
1382 extern const struct cmd_entry cmd_detach_client_entry;
1383 extern const struct cmd_entry cmd_display_message_entry;
1384 extern const struct cmd_entry cmd_display_panes_entry;
1385 extern const struct cmd_entry cmd_down_pane_entry;
1386 extern const struct cmd_entry cmd_find_window_entry;
1387 extern const struct cmd_entry cmd_has_session_entry;
1388 extern const struct cmd_entry cmd_if_shell_entry;
1389 extern const struct cmd_entry cmd_kill_pane_entry;
1390 extern const struct cmd_entry cmd_kill_server_entry;
1391 extern const struct cmd_entry cmd_kill_session_entry;
1392 extern const struct cmd_entry cmd_kill_window_entry;
1393 extern const struct cmd_entry cmd_last_window_entry;
1394 extern const struct cmd_entry cmd_link_window_entry;
1395 extern const struct cmd_entry cmd_list_buffers_entry;
1396 extern const struct cmd_entry cmd_list_clients_entry;
1397 extern const struct cmd_entry cmd_list_commands_entry;
1398 extern const struct cmd_entry cmd_list_keys_entry;
1399 extern const struct cmd_entry cmd_list_panes_entry;
1400 extern const struct cmd_entry cmd_list_sessions_entry;
1401 extern const struct cmd_entry cmd_list_windows_entry;
1402 extern const struct cmd_entry cmd_load_buffer_entry;
1403 extern const struct cmd_entry cmd_lock_client_entry;
1404 extern const struct cmd_entry cmd_lock_server_entry;
1405 extern const struct cmd_entry cmd_lock_session_entry;
1406 extern const struct cmd_entry cmd_move_window_entry;
1407 extern const struct cmd_entry cmd_new_session_entry;
1408 extern const struct cmd_entry cmd_new_window_entry;
1409 extern const struct cmd_entry cmd_next_layout_entry;
1410 extern const struct cmd_entry cmd_next_window_entry;
1411 extern const struct cmd_entry cmd_paste_buffer_entry;
1412 extern const struct cmd_entry cmd_pipe_pane_entry;
1413 extern const struct cmd_entry cmd_previous_layout_entry;
1414 extern const struct cmd_entry cmd_previous_window_entry;
1415 extern const struct cmd_entry cmd_refresh_client_entry;
1416 extern const struct cmd_entry cmd_rename_session_entry;
1417 extern const struct cmd_entry cmd_rename_window_entry;
1418 extern const struct cmd_entry cmd_resize_pane_entry;
1419 extern const struct cmd_entry cmd_respawn_window_entry;
1420 extern const struct cmd_entry cmd_rotate_window_entry;
1421 extern const struct cmd_entry cmd_run_shell_entry;
1422 extern const struct cmd_entry cmd_save_buffer_entry;
1423 extern const struct cmd_entry cmd_select_layout_entry;
1424 extern const struct cmd_entry cmd_select_pane_entry;
1425 extern const struct cmd_entry cmd_select_prompt_entry;
1426 extern const struct cmd_entry cmd_select_window_entry;
1427 extern const struct cmd_entry cmd_send_keys_entry;
1428 extern const struct cmd_entry cmd_send_prefix_entry;
1429 extern const struct cmd_entry cmd_server_info_entry;
1430 extern const struct cmd_entry cmd_set_buffer_entry;
1431 extern const struct cmd_entry cmd_set_environment_entry;
1432 extern const struct cmd_entry cmd_set_option_entry;
1433 extern const struct cmd_entry cmd_set_window_option_entry;
1434 extern const struct cmd_entry cmd_show_buffer_entry;
1435 extern const struct cmd_entry cmd_show_environment_entry;
1436 extern const struct cmd_entry cmd_show_options_entry;
1437 extern const struct cmd_entry cmd_show_window_options_entry;
1438 extern const struct cmd_entry cmd_source_file_entry;
1439 extern const struct cmd_entry cmd_split_window_entry;
1440 extern const struct cmd_entry cmd_start_server_entry;
1441 extern const struct cmd_entry cmd_suspend_client_entry;
1442 extern const struct cmd_entry cmd_swap_pane_entry;
1443 extern const struct cmd_entry cmd_swap_window_entry;
1444 extern const struct cmd_entry cmd_switch_client_entry;
1445 extern const struct cmd_entry cmd_unbind_key_entry;
1446 extern const struct cmd_entry cmd_unlink_window_entry;
1447 extern const struct cmd_entry cmd_up_pane_entry;
1448 
1449 /* cmd-list.c */
1450 struct cmd_list	*cmd_list_parse(int, char **, char **);
1451 int		 cmd_list_exec(struct cmd_list *, struct cmd_ctx *);
1452 void		 cmd_list_free(struct cmd_list *);
1453 size_t		 cmd_list_print(struct cmd_list *, char *, size_t);
1454 
1455 /* cmd-string.c */
1456 int	cmd_string_parse(const char *, struct cmd_list **, char **);
1457 
1458 /* cmd-generic.c */
1459 size_t  cmd_prarg(char *, size_t, const char *, char *);
1460 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1461 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1462 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1463 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1464 void	cmd_target_init(struct cmd *, int);
1465 int	cmd_target_parse(struct cmd *, int, char **, char **);
1466 void	cmd_target_free(struct cmd *);
1467 size_t	cmd_target_print(struct cmd *, char *, size_t);
1468 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1469 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1470 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1471 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1472 void	cmd_srcdst_init(struct cmd *, int);
1473 int	cmd_srcdst_parse(struct cmd *, int, char **, char **);
1474 void	cmd_srcdst_free(struct cmd *);
1475 size_t	cmd_srcdst_print(struct cmd *, char *, size_t);
1476 #define CMD_BUFFER_PANE_USAGE "[-b buffer-index] [-t target-pane]"
1477 #define CMD_BUFFER_WINDOW_USAGE "[-b buffer-index] [-t target-window]"
1478 #define CMD_BUFFER_SESSION_USAGE "[-b buffer-index] [-t target-session]"
1479 #define CMD_BUFFER_CLIENT_USAGE "[-b buffer-index] [-t target-client]"
1480 void	cmd_buffer_init(struct cmd *, int);
1481 int	cmd_buffer_parse(struct cmd *, int, char **, char **);
1482 void	cmd_buffer_free(struct cmd *);
1483 size_t	cmd_buffer_print(struct cmd *, char *, size_t);
1484 
1485 /* client.c */
1486 int	 client_init(char *, struct client_ctx *, int, int);
1487 int	 client_main(struct client_ctx *);
1488 int	 client_msg_dispatch(struct client_ctx *);
1489 
1490 /* client-fn.c */
1491 void	 client_write_server(struct client_ctx *, enum msgtype, void *, size_t);
1492 void	 client_fill_session(struct msg_command_data *);
1493 void	 client_suspend(void);
1494 
1495 /* key-bindings.c */
1496 extern struct key_bindings key_bindings;
1497 int	 key_bindings_cmp(struct key_binding *, struct key_binding *);
1498 SPLAY_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1499 struct key_binding *key_bindings_lookup(int);
1500 void	 key_bindings_add(int, int, struct cmd_list *);
1501 void	 key_bindings_remove(int);
1502 void	 key_bindings_clean(void);
1503 void	 key_bindings_init(void);
1504 void	 key_bindings_free(void);
1505 void	 key_bindings_dispatch(struct key_binding *, struct client *);
1506 void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
1507 void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
1508 void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
1509 
1510 /* key-string.c */
1511 int	 key_string_lookup_string(const char *);
1512 const char *key_string_lookup_key(int);
1513 
1514 /* server.c */
1515 extern struct clients clients;
1516 extern struct clients dead_clients;
1517 int	 server_start(char *);
1518 
1519 /* server-msg.c */
1520 int	 server_msg_dispatch(struct client *);
1521 
1522 /* server-fn.c */
1523 void	 server_fill_environ(struct session *, struct environ *);
1524 void	 server_write_error(struct client *, const char *);
1525 void	 server_write_client(
1526              struct client *, enum msgtype, const void *, size_t);
1527 void	 server_write_session(
1528              struct session *, enum msgtype, const void *, size_t);
1529 void	 server_redraw_client(struct client *);
1530 void	 server_status_client(struct client *);
1531 void	 server_redraw_session(struct session *);
1532 void	 server_redraw_session_group(struct session *);
1533 void	 server_status_session(struct session *);
1534 void	 server_status_session_group(struct session *);
1535 void	 server_redraw_window(struct window *);
1536 void	 server_status_window(struct window *);
1537 void	 server_lock(void);
1538 void	 server_lock_session(struct session *);
1539 void	 server_lock_client(struct client *);
1540 int	 server_unlock(const char *);
1541 void	 server_kill_window(struct window *);
1542 int	 server_link_window(struct session *,
1543 	     struct winlink *, struct session *, int, int, int, char **);
1544 void	 server_unlink_window(struct session *, struct winlink *);
1545 void	 server_destroy_session_group(struct session *);
1546 void	 server_destroy_session(struct session *);
1547 void	 server_set_identify(struct client *);
1548 void	 server_clear_identify(struct client *);
1549 
1550 /* status.c */
1551 int	 status_redraw(struct client *);
1552 char	*status_replace(struct client *, const char *, time_t);
1553 void printflike2 status_message_set(struct client *, const char *, ...);
1554 void	 status_message_clear(struct client *);
1555 int	 status_message_redraw(struct client *);
1556 void	 status_prompt_set(struct client *, const char *,
1557     	     int (*)(void *, const char *), void (*)(void *), void *, int);
1558 void	 status_prompt_clear(struct client *);
1559 int	 status_prompt_redraw(struct client *);
1560 void	 status_prompt_key(struct client *, int);
1561 void	 status_prompt_update(struct client *, const char *);
1562 
1563 /* resize.c */
1564 void	 recalculate_sizes(void);
1565 
1566 /* input.c */
1567 void	 input_init(struct window_pane *);
1568 void	 input_free(struct window_pane *);
1569 void	 input_parse(struct window_pane *);
1570 
1571 /* input-key.c */
1572 void	 input_key(struct window_pane *, int);
1573 void	 input_mouse(struct window_pane *, struct mouse_event *);
1574 
1575 /* colour.c */
1576 void	 colour_set_fg(struct grid_cell *, int);
1577 void	 colour_set_bg(struct grid_cell *, int);
1578 const char *colour_tostring(int);
1579 int	 colour_fromstring(const char *);
1580 u_char	 colour_256to16(u_char);
1581 u_char	 colour_256to88(u_char);
1582 
1583 /* attributes.c */
1584 const char *attributes_tostring(u_char);
1585 int	 attributes_fromstring(const char *);
1586 
1587 /* grid.c */
1588 extern const struct grid_cell grid_default_cell;
1589 struct grid *grid_create(u_int, u_int, u_int);
1590 void	 grid_destroy(struct grid *);
1591 int	 grid_compare(struct grid *, struct grid *);
1592 void	 grid_expand_line(struct grid *, u_int, u_int);
1593 void	 grid_expand_line_utf8(struct grid *, u_int, u_int);
1594 void	 grid_scroll_line(struct grid *);
1595 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
1596 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
1597 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
1598 const struct grid_utf8 *grid_peek_utf8(struct grid *, u_int, u_int);
1599 struct grid_utf8 *grid_get_utf8(struct grid *, u_int, u_int);
1600 void	 grid_set_utf8(struct grid *, u_int, u_int, const struct grid_utf8 *);
1601 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int);
1602 void	 grid_clear_lines(struct grid *, u_int, u_int);
1603 void	 grid_move_lines(struct grid *, u_int, u_int, u_int);
1604 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
1605 char	*grid_string_cells(struct grid *, u_int, u_int, u_int);
1606 void	 grid_duplicate_lines(
1607     	     struct grid *, u_int, struct grid *, u_int, u_int);
1608 
1609 /* grid-view.c */
1610 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
1611 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
1612 void	 grid_view_set_cell(
1613     	     struct grid *, u_int, u_int, const struct grid_cell *);
1614 const struct grid_utf8 *grid_view_peek_utf8(struct grid *, u_int, u_int);
1615 struct grid_utf8 *grid_view_get_utf8(struct grid *, u_int, u_int);
1616 void	 grid_view_set_utf8(
1617     	     struct grid *, u_int, u_int, const struct grid_utf8 *);
1618 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
1619 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int);
1620 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int);
1621 void	 grid_view_insert_lines(struct grid *, u_int, u_int);
1622 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
1623 void	 grid_view_delete_lines(struct grid *, u_int, u_int);
1624 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
1625 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
1626 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
1627 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
1628 
1629 /* screen-write.c */
1630 void	 screen_write_start(
1631     	     struct screen_write_ctx *, struct window_pane *, struct screen *);
1632 void	 screen_write_stop(struct screen_write_ctx *);
1633 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
1634 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
1635     ssize_t, struct grid_cell *, int, const char *, ...);
1636 size_t printflike2 screen_write_strlen(int, const char *, ...);
1637 void printflike3 screen_write_puts(struct screen_write_ctx *,
1638     	     struct grid_cell *, const char *, ...);
1639 void printflike5 screen_write_nputs(struct screen_write_ctx *,
1640     ssize_t, struct grid_cell *, int, const char *, ...);
1641 void	 screen_write_vnputs(struct screen_write_ctx *,
1642 	     ssize_t, struct grid_cell *, int, const char *, va_list);
1643 void	 screen_write_parsestyle(
1644     	     struct grid_cell *, struct grid_cell *, const char *);
1645 void	 screen_write_putc(
1646     	     struct screen_write_ctx *, struct grid_cell *, u_char);
1647 void	 screen_write_copy(struct screen_write_ctx *,
1648 	     struct screen *, u_int, u_int, u_int, u_int);
1649 void	 screen_write_backspace(struct screen_write_ctx *);
1650 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
1651 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
1652 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
1653 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
1654 void	 screen_write_alignmenttest(struct screen_write_ctx *);
1655 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int);
1656 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int);
1657 void	 screen_write_insertline(struct screen_write_ctx *, u_int);
1658 void	 screen_write_deleteline(struct screen_write_ctx *, u_int);
1659 void	 screen_write_clearline(struct screen_write_ctx *);
1660 void	 screen_write_clearendofline(struct screen_write_ctx *);
1661 void	 screen_write_clearstartofline(struct screen_write_ctx *);
1662 void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
1663 void	 screen_write_cursormode(struct screen_write_ctx *, int);
1664 void	 screen_write_reverseindex(struct screen_write_ctx *);
1665 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
1666 void	 screen_write_insertmode(struct screen_write_ctx *, int);
1667 void	 screen_write_mousemode(struct screen_write_ctx *, int);
1668 void	 screen_write_linefeed(struct screen_write_ctx *, int);
1669 void	 screen_write_linefeedscreen(struct screen_write_ctx *, int);
1670 void	 screen_write_carriagereturn(struct screen_write_ctx *);
1671 void	 screen_write_kcursormode(struct screen_write_ctx *, int);
1672 void	 screen_write_kkeypadmode(struct screen_write_ctx *, int);
1673 void	 screen_write_clearendofscreen(struct screen_write_ctx *);
1674 void	 screen_write_clearstartofscreen(struct screen_write_ctx *);
1675 void	 screen_write_clearscreen(struct screen_write_ctx *);
1676 void	 screen_write_cell(
1677     	     struct screen_write_ctx *, const struct grid_cell *, u_char *);
1678 
1679 /* screen-redraw.c */
1680 void	 screen_redraw_screen(struct client *, int);
1681 void	 screen_redraw_pane(struct client *, struct window_pane *);
1682 
1683 /* screen.c */
1684 void	 screen_init(struct screen *, u_int, u_int, u_int);
1685 void	 screen_reinit(struct screen *);
1686 void	 screen_free(struct screen *);
1687 void	 screen_reset_tabs(struct screen *);
1688 void	 screen_set_title(struct screen *, const char *);
1689 void	 screen_resize(struct screen *, u_int, u_int);
1690 void	 screen_set_selection(
1691 	     struct screen *, u_int, u_int, u_int, u_int, struct grid_cell *);
1692 void	 screen_clear_selection(struct screen *);
1693 int	 screen_check_selection(struct screen *, u_int, u_int);
1694 
1695 /* window.c */
1696 extern struct windows windows;
1697 int		 window_cmp(struct window *, struct window *);
1698 int		 winlink_cmp(struct winlink *, struct winlink *);
1699 RB_PROTOTYPE(windows, window, entry, window_cmp);
1700 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
1701 struct winlink	*winlink_find_by_index(struct winlinks *, int);
1702 struct winlink 	*winlink_find_by_window(struct winlinks *, struct window *);
1703 int		 winlink_next_index(struct winlinks *, int);
1704 u_int		 winlink_count(struct winlinks *);
1705 struct winlink	*winlink_add(struct winlinks *, struct window *, int);
1706 void		 winlink_remove(struct winlinks *, struct winlink *);
1707 struct winlink	*winlink_next(struct winlinks *, struct winlink *);
1708 struct winlink	*winlink_previous(struct winlinks *, struct winlink *);
1709 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
1710 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
1711 int	 	 window_index(struct window *, u_int *);
1712 struct window	*window_create1(u_int, u_int);
1713 struct window	*window_create(const char *, const char *, const char *,
1714 		     const char *, struct environ *, struct termios *,
1715     		     u_int, u_int, u_int, char **);
1716 void		 window_destroy(struct window *);
1717 void		 window_set_active_at(struct window *, u_int, u_int);
1718 void		 window_set_active_pane(struct window *, struct window_pane *);
1719 struct window_pane *window_add_pane(struct window *, u_int);
1720 void		 window_resize(struct window *, u_int, u_int);
1721 void		 window_remove_pane(struct window *, struct window_pane *);
1722 struct window_pane *window_pane_at_index(struct window *, u_int);
1723 u_int		 window_pane_index(struct window *, struct window_pane *);
1724 u_int		 window_count_panes(struct window *);
1725 void		 window_destroy_panes(struct window *);
1726 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
1727 void		 window_pane_destroy(struct window_pane *);
1728 int		 window_pane_spawn(struct window_pane *, const char *,
1729 		     const char *, const char *, struct environ *,
1730 		     struct termios *, char **);
1731 void		 window_pane_resize(struct window_pane *, u_int, u_int);
1732 int		 window_pane_set_mode(
1733 		     struct window_pane *, const struct window_mode *);
1734 void		 window_pane_reset_mode(struct window_pane *);
1735 void		 window_pane_parse(struct window_pane *);
1736 void		 window_pane_key(struct window_pane *, struct client *, int);
1737 void		 window_pane_mouse(struct window_pane *,
1738     		     struct client *, struct mouse_event *);
1739 int		 window_pane_visible(struct window_pane *);
1740 char		*window_pane_search(
1741     		     struct window_pane *, const char *, u_int *);
1742 
1743 /* layout.c */
1744 struct layout_cell *layout_create_cell(struct layout_cell *);
1745 void		 layout_free_cell(struct layout_cell *);
1746 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
1747 void		 layout_set_size(
1748 		     struct layout_cell *, u_int, u_int, u_int, u_int);
1749 void		 layout_make_leaf(
1750 		     struct layout_cell *, struct window_pane *);
1751 void		 layout_make_node(struct layout_cell *, enum layout_type);
1752 void		 layout_fix_offsets(struct layout_cell *);
1753 void		 layout_fix_panes(struct window *, u_int, u_int);
1754 u_int		 layout_resize_check(struct layout_cell *, enum layout_type);
1755 void		 layout_resize_adjust(
1756 		     struct layout_cell *, enum layout_type, int);
1757 void		 layout_init(struct window *);
1758 void		 layout_free(struct window *);
1759 void		 layout_resize(struct window *, u_int, u_int);
1760 void		 layout_resize_pane(
1761     		     struct window_pane *, enum layout_type, int);
1762 int		 layout_split_pane(struct window_pane *,
1763 		     enum layout_type, int, struct window_pane *);
1764 void		 layout_close_pane(struct window_pane *);
1765 
1766 /* layout-set.c */
1767 const char	*layout_set_name(u_int);
1768 int		 layout_set_lookup(const char *);
1769 u_int		 layout_set_select(struct window *, u_int);
1770 u_int		 layout_set_next(struct window *);
1771 u_int		 layout_set_previous(struct window *);
1772 void		 layout_set_active_changed(struct window *);
1773 
1774 /* window-clock.c */
1775 extern const struct window_mode window_clock_mode;
1776 
1777 /* window-copy.c */
1778 extern const struct window_mode window_copy_mode;
1779 void 		 window_copy_pageup(struct window_pane *);
1780 
1781 /* window-more.c */
1782 extern const struct window_mode window_more_mode;
1783 void 		 window_more_vadd(struct window_pane *, const char *, va_list);
1784 
1785 /* window-choose.c */
1786 extern const struct window_mode window_choose_mode;
1787 void 		 window_choose_vadd(
1788     		     struct window_pane *, int, const char *, va_list);
1789 void printflike3 window_choose_add(
1790     		     struct window_pane *, int, const char *, ...);
1791 void		 window_choose_ready(struct window_pane *,
1792 		     u_int, void (*)(void *, int), void (*)(void *), void *);
1793 
1794 /* names.c */
1795 void		 set_window_names(void);
1796 char 		*default_window_name(struct window *);
1797 
1798 /* session.c */
1799 extern struct sessions sessions;
1800 extern struct sessions dead_sessions;
1801 extern struct session_groups session_groups;
1802 void	 session_alert_add(struct session *, struct window *, int);
1803 void	 session_alert_cancel(struct session *, struct winlink *);
1804 int	 session_alert_has(struct session *, struct winlink *, int);
1805 int	 session_alert_has_window(struct session *, struct window *, int);
1806 struct session	*session_find(const char *);
1807 struct session	*session_create(const char *, const char *, const char *,
1808 		     struct environ *, struct termios *, int, u_int, u_int,
1809 		     char **);
1810 void	 	 session_destroy(struct session *);
1811 int	 	 session_index(struct session *, u_int *);
1812 struct winlink	*session_new(struct session *,
1813 	    	     const char *, const char *, const char *, int, char **);
1814 struct winlink	*session_attach(
1815     		     struct session *, struct window *, int, char **);
1816 int		 session_detach(struct session *, struct winlink *);
1817 int		 session_has(struct session *, struct window *);
1818 int		 session_next(struct session *, int);
1819 int		 session_previous(struct session *, int);
1820 int		 session_select(struct session *, int);
1821 int		 session_last(struct session *);
1822 struct session_group *session_group_find(struct session *);
1823 u_int		 session_group_index(struct session_group *);
1824 void		 session_group_add(struct session *, struct session *);
1825 void		 session_group_remove(struct session *);
1826 void		 session_group_synchronize_to(struct session *);
1827 void		 session_group_synchronize_from(struct session *);
1828 void		 session_group_synchronize1(struct session *, struct session *);
1829 
1830 /* utf8.c */
1831 void	utf8_build(void);
1832 int	utf8_width(const u_char *);
1833 
1834 /* procname.c */
1835 char   *get_proc_name(int, char *);
1836 
1837 /* buffer.c */
1838 struct buffer 	*buffer_create(size_t);
1839 void		 buffer_destroy(struct buffer *);
1840 void		 buffer_ensure(struct buffer *, size_t);
1841 void		 buffer_add(struct buffer *, size_t);
1842 void		 buffer_remove(struct buffer *, size_t);
1843 void		 buffer_write(struct buffer *, const void *, size_t);
1844 void		 buffer_read(struct buffer *, void *, size_t);
1845 void	 	 buffer_write8(struct buffer *, uint8_t);
1846 uint8_t		 buffer_read8(struct buffer *);
1847 
1848 /* buffer-poll.c */
1849 int		 buffer_poll(struct pollfd *, struct buffer *, struct buffer *);
1850 
1851 /* log.c */
1852 void		 log_open_tty(int);
1853 void		 log_open_file(int, const char *);
1854 void		 log_close(void);
1855 void printflike1 log_warn(const char *, ...);
1856 void printflike1 log_warnx(const char *, ...);
1857 void printflike1 log_info(const char *, ...);
1858 void printflike1 log_debug(const char *, ...);
1859 void printflike1 log_debug2(const char *, ...);
1860 __dead void printflike1 log_fatal(const char *, ...);
1861 __dead void printflike1 log_fatalx(const char *, ...);
1862 
1863 /* xmalloc.c */
1864 char		*xstrdup(const char *);
1865 void		*xcalloc(size_t, size_t);
1866 void		*xmalloc(size_t);
1867 void		*xrealloc(void *, size_t, size_t);
1868 void		 xfree(void *);
1869 int printflike2	 xasprintf(char **, const char *, ...);
1870 int		 xvasprintf(char **, const char *, va_list);
1871 int printflike3	 xsnprintf(char *, size_t, const char *, ...);
1872 int		 xvsnprintf(char *, size_t, const char *, va_list);
1873 
1874 #endif /* TMUX_H */
1875