xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 50b7afb2c2c0993b0894d4e34bf857cb13ed9c80)
1 /* $OpenBSD: tmux.h,v 1.465 2014/06/06 13:21:41 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 8
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 <event.h>
32 #include <getopt.h>
33 #include <imsg.h>
34 #include <limits.h>
35 #include <signal.h>
36 #include <stdarg.h>
37 #include <stdint.h>
38 #include <stdio.h>
39 #include <termios.h>
40 
41 #include "array.h"
42 
43 extern char    *__progname;
44 extern char   **environ;
45 
46 /* Default global configuration file. */
47 #define TMUX_CONF "/etc/tmux.conf"
48 
49 /* Default prompt history length. */
50 #define PROMPT_HISTORY 100
51 
52 /*
53  * Minimum layout cell size, NOT including separator line. The scroll region
54  * cannot be one line in height so this must be at least two.
55  */
56 #define PANE_MINIMUM 2
57 
58 /* Automatic name refresh interval, in milliseconds. */
59 #define NAME_INTERVAL 500
60 
61 /*
62  * UTF-8 data size. This must be big enough to hold combined characters as well
63  * as single.
64  */
65 #define UTF8_SIZE 9
66 
67 /* Fatal errors. */
68 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
69 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
70 
71 /* Definition to shut gcc up about unused arguments. */
72 #define unused __attribute__ ((unused))
73 
74 /* Attribute to make gcc check printf-like arguments. */
75 #define printflike1 __attribute__ ((format (printf, 1, 2)))
76 #define printflike2 __attribute__ ((format (printf, 2, 3)))
77 #define printflike3 __attribute__ ((format (printf, 3, 4)))
78 #define printflike4 __attribute__ ((format (printf, 4, 5)))
79 #define printflike5 __attribute__ ((format (printf, 5, 6)))
80 
81 /* Number of items in array. */
82 #ifndef nitems
83 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
84 #endif
85 
86 /* Default template for choose-buffer. */
87 #define CHOOSE_BUFFER_TEMPLATE					\
88 	"#{buffer_name}: #{buffer_size} bytes: #{buffer_sample}"
89 
90 /* Default template for choose-client. */
91 #define CHOOSE_CLIENT_TEMPLATE					\
92 	"#{client_tty}: #{session_name} "			\
93 	"[#{client_width}x#{client_height} #{client_termname}]"	\
94 	"#{?client_utf8, (utf8),}#{?client_readonly, (ro),} "	\
95 	"(last used #{client_activity_string})"
96 
97 /* Default templates for choose-tree. */
98 #define CHOOSE_TREE_SESSION_TEMPLATE				\
99 	"#{session_name}: #{session_windows} windows"		\
100 	"#{?session_grouped, (group ,}"				\
101 	"#{session_group}#{?session_grouped,),}"		\
102 	"#{?session_attached, (attached),}"
103 #define CHOOSE_TREE_WINDOW_TEMPLATE				\
104 	"#{window_index}: #{window_name}#{window_flags} "	\
105 	"\"#{pane_title}\""
106 
107 /* Default template for display-message. */
108 #define DISPLAY_MESSAGE_TEMPLATE				\
109 	"[#{session_name}] #{window_index}:"			\
110 	"#{window_name}, current pane #{pane_index} "		\
111 	"- (%H:%M %d-%b-%y)"
112 
113 /* Default template for find-window. */
114 #define FIND_WINDOW_TEMPLATE					\
115 	"#{window_index}: #{window_name} "			\
116 	"[#{window_width}x#{window_height}] "			\
117 	"(#{window_panes} panes) #{window_find_matches}"
118 
119 /* Default template for list-buffers. */
120 #define LIST_BUFFERS_TEMPLATE					\
121 	"#{buffer_name}: #{buffer_size} bytes: "		\
122 	"\"#{buffer_sample}\""
123 
124 /* Default template for list-clients. */
125 #define LIST_CLIENTS_TEMPLATE					\
126 	"#{client_tty}: #{session_name} "			\
127 	"[#{client_width}x#{client_height} #{client_termname}]"	\
128 	"#{?client_utf8, (utf8),} #{?client_readonly, (ro),}"
129 
130 /* Default template for list-sessions. */
131 #define LIST_SESSIONS_TEMPLATE					\
132 	"#{session_name}: #{session_windows} windows "		\
133 	"(created #{session_created_string}) "			\
134 	"[#{session_width}x#{session_height}]"			\
135 	"#{?session_grouped, (group ,}"				\
136 	"#{session_group}#{?session_grouped,),}"		\
137 	"#{?session_attached, (attached),}"
138 
139 /* Default templates for list-windows. */
140 #define LIST_WINDOWS_TEMPLATE					\
141 	"#{window_index}: #{window_name}#{window_flags} "	\
142 	"(#{window_panes} panes) "				\
143 	"[#{window_width}x#{window_height}] "			\
144 	"[layout #{window_layout}] #{window_id}"		\
145 	"#{?window_active, (active),}";
146 #define LIST_WINDOWS_WITH_SESSION_TEMPLATE			\
147 	"#{session_name}:"					\
148 	"#{window_index}: #{window_name}#{window_flags} "	\
149 	"(#{window_panes} panes) "				\
150 	"[#{window_width}x#{window_height}] "
151 
152 /* Default templates for break-pane, new-window and split-window. */
153 #define BREAK_PANE_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
154 #define NEW_SESSION_TEMPLATE "#{session_name}:"
155 #define NEW_WINDOW_TEMPLATE BREAK_PANE_TEMPLATE
156 #define SPLIT_WINDOW_TEMPLATE BREAK_PANE_TEMPLATE
157 
158 /* Bell option values. */
159 #define BELL_NONE 0
160 #define BELL_ANY 1
161 #define BELL_CURRENT 2
162 
163 /* Special key codes. */
164 #define KEYC_NONE 0xfff
165 #define KEYC_BASE 0x1000
166 
167 /* Key modifier bits. */
168 #define KEYC_ESCAPE 0x2000
169 #define KEYC_CTRL 0x4000
170 #define KEYC_SHIFT 0x8000
171 #define KEYC_PREFIX 0x10000
172 
173 /* Mask to obtain key w/o modifiers. */
174 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_PREFIX)
175 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
176 
177 /* Other key codes. */
178 enum key_code {
179 	/* Mouse key. */
180 	KEYC_MOUSE = KEYC_BASE,
181 
182 	/* Backspace key. */
183 	KEYC_BSPACE,
184 
185 	/* Function keys. */
186 	KEYC_F1,
187 	KEYC_F2,
188 	KEYC_F3,
189 	KEYC_F4,
190 	KEYC_F5,
191 	KEYC_F6,
192 	KEYC_F7,
193 	KEYC_F8,
194 	KEYC_F9,
195 	KEYC_F10,
196 	KEYC_F11,
197 	KEYC_F12,
198 	KEYC_F13,
199 	KEYC_F14,
200 	KEYC_F15,
201 	KEYC_F16,
202 	KEYC_F17,
203 	KEYC_F18,
204 	KEYC_F19,
205 	KEYC_F20,
206 	KEYC_IC,
207 	KEYC_DC,
208 	KEYC_HOME,
209 	KEYC_END,
210 	KEYC_NPAGE,
211 	KEYC_PPAGE,
212 	KEYC_BTAB,
213 
214 	/* Arrow keys. */
215 	KEYC_UP,
216 	KEYC_DOWN,
217 	KEYC_LEFT,
218 	KEYC_RIGHT,
219 
220 	/* Numeric keypad. */
221 	KEYC_KP_SLASH,
222 	KEYC_KP_STAR,
223 	KEYC_KP_MINUS,
224 	KEYC_KP_SEVEN,
225 	KEYC_KP_EIGHT,
226 	KEYC_KP_NINE,
227 	KEYC_KP_PLUS,
228 	KEYC_KP_FOUR,
229 	KEYC_KP_FIVE,
230 	KEYC_KP_SIX,
231 	KEYC_KP_ONE,
232 	KEYC_KP_TWO,
233 	KEYC_KP_THREE,
234 	KEYC_KP_ENTER,
235 	KEYC_KP_ZERO,
236 	KEYC_KP_PERIOD,
237 
238 	KEYC_FOCUS_IN,
239 	KEYC_FOCUS_OUT,
240 };
241 
242 /* Termcap codes. */
243 enum tty_code_code {
244 	TTYC_AX = 0,
245 	TTYC_ACSC,	/* acs_chars, ac */
246 	TTYC_BEL,	/* bell, bl */
247 	TTYC_BLINK,	/* enter_blink_mode, mb */
248 	TTYC_BOLD,	/* enter_bold_mode, md */
249 	TTYC_CIVIS,	/* cursor_invisible, vi */
250 	TTYC_CLEAR,	/* clear_screen, cl */
251 	TTYC_CNORM,	/* cursor_normal, ve */
252 	TTYC_COLORS,	/* max_colors, Co */
253 	TTYC_CR,	/* restore cursor colour, Cr */
254 	TTYC_CS,	/* set cursor colour, Cs */
255 	TTYC_CSR,	/* change_scroll_region, cs */
256 	TTYC_CUB,	/* parm_left_cursor, LE */
257 	TTYC_CUB1,	/* cursor_left, le */
258 	TTYC_CUD,	/* parm_down_cursor, DO */
259 	TTYC_CUD1,	/* cursor_down, do */
260 	TTYC_CUF,	/* parm_right_cursor, RI */
261 	TTYC_CUF1,	/* cursor_right, nd */
262 	TTYC_CUP,	/* cursor_address, cm */
263 	TTYC_CUU,	/* parm_up_cursor, UP */
264 	TTYC_CUU1,	/* cursor_up, up */
265 	TTYC_DCH,	/* parm_dch, DC */
266 	TTYC_DCH1,	/* delete_character, dc */
267 	TTYC_DIM,	/* enter_dim_mode, mh */
268 	TTYC_DL,	/* parm_delete_line, DL */
269 	TTYC_DL1,	/* delete_line, dl */
270 	TTYC_E3,
271 	TTYC_ECH,	/* erase_chars, ec */
272 	TTYC_EL,	/* clr_eol, ce */
273 	TTYC_EL1,	/* clr_bol, cb */
274 	TTYC_ENACS,	/* ena_acs, eA */
275 	TTYC_FSL,	/* from_status_line, fsl */
276 	TTYC_HOME,	/* cursor_home, ho */
277 	TTYC_HPA,	/* column_address, ch */
278 	TTYC_ICH,	/* parm_ich, IC */
279 	TTYC_ICH1,	/* insert_character, ic */
280 	TTYC_IL,	/* parm_insert_line, IL */
281 	TTYC_IL1,	/* insert_line, il */
282 	TTYC_INVIS,	/* enter_secure_mode, mk */
283 	TTYC_IS1,	/* init_1string, i1 */
284 	TTYC_IS2,	/* init_2string, i2 */
285 	TTYC_IS3,	/* init_3string, i3 */
286 	TTYC_KCBT,	/* key_btab, kB */
287 	TTYC_KCUB1,	/* key_left, kl */
288 	TTYC_KCUD1,	/* key_down, kd */
289 	TTYC_KCUF1,	/* key_right, kr */
290 	TTYC_KCUU1,	/* key_up, ku */
291 	TTYC_KDC2,
292 	TTYC_KDC3,
293 	TTYC_KDC4,
294 	TTYC_KDC5,
295 	TTYC_KDC6,
296 	TTYC_KDC7,
297 	TTYC_KDCH1,	/* key_dc, kD */
298 	TTYC_KDN2,
299 	TTYC_KDN3,
300 	TTYC_KDN4,
301 	TTYC_KDN5,
302 	TTYC_KDN6,
303 	TTYC_KDN7,
304 	TTYC_KEND,	/* key_end, ke */
305 	TTYC_KEND2,
306 	TTYC_KEND3,
307 	TTYC_KEND4,
308 	TTYC_KEND5,
309 	TTYC_KEND6,
310 	TTYC_KEND7,
311 	TTYC_KF1,	/* key_f1, k1 */
312 	TTYC_KF10,	/* key_f10, k; */
313 	TTYC_KF11,	/* key_f11, F1 */
314 	TTYC_KF12,	/* key_f12, F2 */
315 	TTYC_KF13,	/* key_f13, F3 */
316 	TTYC_KF14,	/* key_f14, F4 */
317 	TTYC_KF15,	/* key_f15, F5 */
318 	TTYC_KF16,	/* key_f16, F6 */
319 	TTYC_KF17,	/* key_f17, F7 */
320 	TTYC_KF18,	/* key_f18, F8 */
321 	TTYC_KF19,	/* key_f19, F9 */
322 	TTYC_KF2,	/* key_f2, k2 */
323 	TTYC_KF20,	/* key_f20, F10 */
324 	TTYC_KF3,	/* key_f3, k3 */
325 	TTYC_KF4,	/* key_f4, k4 */
326 	TTYC_KF5,	/* key_f5, k5 */
327 	TTYC_KF6,	/* key_f6, k6 */
328 	TTYC_KF7,	/* key_f7, k7 */
329 	TTYC_KF8,	/* key_f8, k8 */
330 	TTYC_KF9,	/* key_f9, k9 */
331 	TTYC_KHOM2,
332 	TTYC_KHOM3,
333 	TTYC_KHOM4,
334 	TTYC_KHOM5,
335 	TTYC_KHOM6,
336 	TTYC_KHOM7,
337 	TTYC_KHOME,	/* key_home, kh */
338 	TTYC_KIC2,
339 	TTYC_KIC3,
340 	TTYC_KIC4,
341 	TTYC_KIC5,
342 	TTYC_KIC6,
343 	TTYC_KIC7,
344 	TTYC_KICH1,	/* key_ic, kI */
345 	TTYC_KLFT2,
346 	TTYC_KLFT3,
347 	TTYC_KLFT4,
348 	TTYC_KLFT5,
349 	TTYC_KLFT6,
350 	TTYC_KLFT7,
351 	TTYC_KMOUS,	/* key_mouse, Km */
352 	TTYC_KNP,	/* key_npage, kN */
353 	TTYC_KNXT2,
354 	TTYC_KNXT3,
355 	TTYC_KNXT4,
356 	TTYC_KNXT5,
357 	TTYC_KNXT6,
358 	TTYC_KNXT7,
359 	TTYC_KPP,	/* key_ppage, kP */
360 	TTYC_KPRV2,
361 	TTYC_KPRV3,
362 	TTYC_KPRV4,
363 	TTYC_KPRV5,
364 	TTYC_KPRV6,
365 	TTYC_KPRV7,
366 	TTYC_KRIT2,
367 	TTYC_KRIT3,
368 	TTYC_KRIT4,
369 	TTYC_KRIT5,
370 	TTYC_KRIT6,
371 	TTYC_KRIT7,
372 	TTYC_KUP2,
373 	TTYC_KUP3,
374 	TTYC_KUP4,
375 	TTYC_KUP5,
376 	TTYC_KUP6,
377 	TTYC_KUP7,
378 	TTYC_MS,	/* modify xterm(1) selection */
379 	TTYC_OP,	/* orig_pair, op */
380 	TTYC_REV,	/* enter_reverse_mode, mr */
381 	TTYC_RI,	/* scroll_reverse, sr */
382 	TTYC_RMACS,	/* exit_alt_charset_mode */
383 	TTYC_RMCUP,	/* exit_ca_mode, te */
384 	TTYC_RMKX,	/* keypad_local, ke */
385 	TTYC_SE,	/* reset cursor style, Se */
386 	TTYC_SETAB,	/* set_a_background, AB */
387 	TTYC_SETAF,	/* set_a_foreground, AF */
388 	TTYC_SGR0,	/* exit_attribute_mode, me */
389 	TTYC_SITM,	/* enter_italics_mode, it */
390 	TTYC_SMACS,	/* enter_alt_charset_mode, as */
391 	TTYC_SMCUP,	/* enter_ca_mode, ti */
392 	TTYC_SMKX,	/* keypad_xmit, ks */
393 	TTYC_SMSO,	/* enter_standout_mode, so */
394 	TTYC_SMUL,	/* enter_underline_mode, us */
395 	TTYC_SS,	/* set cursor style, Ss */
396 	TTYC_TSL,	/* to_status_line, tsl */
397 	TTYC_VPA,	/* row_address, cv */
398 	TTYC_XENL,	/* eat_newline_glitch, xn */
399 	TTYC_XT,	/* xterm(1)-compatible title, XT */
400 };
401 #define NTTYCODE (TTYC_XT + 1)
402 
403 /* Termcap types. */
404 enum tty_code_type {
405 	TTYCODE_NONE = 0,
406 	TTYCODE_STRING,
407 	TTYCODE_NUMBER,
408 	TTYCODE_FLAG,
409 };
410 
411 /* Termcap code. */
412 struct tty_code {
413 	enum tty_code_type	type;
414 	union {
415 		char	       *string;
416 		int		number;
417 		int		flag;
418 	} value;
419 };
420 
421 /* Entry in terminal code table. */
422 struct tty_term_code_entry {
423 	enum tty_code_code	code;
424 	enum tty_code_type	type;
425 	const char	       *name;
426 };
427 
428 /* List of error causes. */
429 ARRAY_DECL(causelist, char *);
430 
431 /* Message codes. */
432 enum msgtype {
433 	MSG_VERSION = 12,
434 
435 	MSG_IDENTIFY_FLAGS = 100,
436 	MSG_IDENTIFY_TERM,
437 	MSG_IDENTIFY_TTYNAME,
438 	MSG_IDENTIFY_CWD,
439 	MSG_IDENTIFY_STDIN,
440 	MSG_IDENTIFY_ENVIRON,
441 	MSG_IDENTIFY_DONE,
442 
443 	MSG_COMMAND = 200,
444 	MSG_DETACH,
445 	MSG_DETACHKILL,
446 	MSG_EXIT,
447 	MSG_EXITED,
448 	MSG_EXITING,
449 	MSG_LOCK,
450 	MSG_READY,
451 	MSG_RESIZE,
452 	MSG_SHELL,
453 	MSG_SHUTDOWN,
454 	MSG_STDERR,
455 	MSG_STDIN,
456 	MSG_STDOUT,
457 	MSG_SUSPEND,
458 	MSG_UNLOCK,
459 	MSG_WAKEUP,
460 };
461 
462 /*
463  * Message data.
464  *
465  * Don't forget to bump PROTOCOL_VERSION if any of these change!
466  */
467 struct msg_command_data {
468 	int	argc;
469 }; /* followed by packed argv */
470 
471 struct msg_stdin_data {
472 	ssize_t	size;
473 	char	data[BUFSIZ];
474 };
475 
476 struct msg_stdout_data {
477 	ssize_t	size;
478 	char	data[BUFSIZ];
479 };
480 
481 struct msg_stderr_data {
482 	ssize_t	size;
483 	char	data[BUFSIZ];
484 };
485 
486 /* Mode key commands. */
487 enum mode_key_cmd {
488 	MODEKEY_NONE,
489 	MODEKEY_OTHER,
490 
491 	/* Editing keys. */
492 	MODEKEYEDIT_BACKSPACE,
493 	MODEKEYEDIT_CANCEL,
494 	MODEKEYEDIT_COMPLETE,
495 	MODEKEYEDIT_CURSORLEFT,
496 	MODEKEYEDIT_CURSORRIGHT,
497 	MODEKEYEDIT_DELETE,
498 	MODEKEYEDIT_DELETELINE,
499 	MODEKEYEDIT_DELETETOENDOFLINE,
500 	MODEKEYEDIT_DELETEWORD,
501 	MODEKEYEDIT_ENDOFLINE,
502 	MODEKEYEDIT_ENTER,
503 	MODEKEYEDIT_HISTORYDOWN,
504 	MODEKEYEDIT_HISTORYUP,
505 	MODEKEYEDIT_NEXTSPACE,
506 	MODEKEYEDIT_NEXTSPACEEND,
507 	MODEKEYEDIT_NEXTWORD,
508 	MODEKEYEDIT_NEXTWORDEND,
509 	MODEKEYEDIT_PASTE,
510 	MODEKEYEDIT_PREVIOUSSPACE,
511 	MODEKEYEDIT_PREVIOUSWORD,
512 	MODEKEYEDIT_STARTOFLINE,
513 	MODEKEYEDIT_SWITCHMODE,
514 	MODEKEYEDIT_SWITCHMODEAPPEND,
515 	MODEKEYEDIT_SWITCHMODEAPPENDLINE,
516 	MODEKEYEDIT_SWITCHMODEBEGINLINE,
517 	MODEKEYEDIT_SWITCHMODECHANGELINE,
518 	MODEKEYEDIT_SWITCHMODESUBSTITUTE,
519 	MODEKEYEDIT_SWITCHMODESUBSTITUTELINE,
520 	MODEKEYEDIT_TRANSPOSECHARS,
521 
522 	/* Menu (choice) keys. */
523 	MODEKEYCHOICE_BACKSPACE,
524 	MODEKEYCHOICE_BOTTOMLINE,
525 	MODEKEYCHOICE_CANCEL,
526 	MODEKEYCHOICE_CHOOSE,
527 	MODEKEYCHOICE_DOWN,
528 	MODEKEYCHOICE_ENDOFLIST,
529 	MODEKEYCHOICE_PAGEDOWN,
530 	MODEKEYCHOICE_PAGEUP,
531 	MODEKEYCHOICE_SCROLLDOWN,
532 	MODEKEYCHOICE_SCROLLUP,
533 	MODEKEYCHOICE_STARTNUMBERPREFIX,
534 	MODEKEYCHOICE_STARTOFLIST,
535 	MODEKEYCHOICE_TOPLINE,
536 	MODEKEYCHOICE_TREE_COLLAPSE,
537 	MODEKEYCHOICE_TREE_COLLAPSE_ALL,
538 	MODEKEYCHOICE_TREE_EXPAND,
539 	MODEKEYCHOICE_TREE_EXPAND_ALL,
540 	MODEKEYCHOICE_TREE_TOGGLE,
541 	MODEKEYCHOICE_UP,
542 
543 	/* Copy keys. */
544 	MODEKEYCOPY_APPENDSELECTION,
545 	MODEKEYCOPY_BACKTOINDENTATION,
546 	MODEKEYCOPY_BOTTOMLINE,
547 	MODEKEYCOPY_CANCEL,
548 	MODEKEYCOPY_CLEARSELECTION,
549 	MODEKEYCOPY_COPYPIPE,
550 	MODEKEYCOPY_COPYLINE,
551 	MODEKEYCOPY_COPYENDOFLINE,
552 	MODEKEYCOPY_COPYSELECTION,
553 	MODEKEYCOPY_DOWN,
554 	MODEKEYCOPY_ENDOFLINE,
555 	MODEKEYCOPY_GOTOLINE,
556 	MODEKEYCOPY_HALFPAGEDOWN,
557 	MODEKEYCOPY_HALFPAGEUP,
558 	MODEKEYCOPY_HISTORYBOTTOM,
559 	MODEKEYCOPY_HISTORYTOP,
560 	MODEKEYCOPY_JUMP,
561 	MODEKEYCOPY_JUMPAGAIN,
562 	MODEKEYCOPY_JUMPREVERSE,
563 	MODEKEYCOPY_JUMPBACK,
564 	MODEKEYCOPY_JUMPTO,
565 	MODEKEYCOPY_JUMPTOBACK,
566 	MODEKEYCOPY_LEFT,
567 	MODEKEYCOPY_MIDDLELINE,
568 	MODEKEYCOPY_NEXTPAGE,
569 	MODEKEYCOPY_NEXTSPACE,
570 	MODEKEYCOPY_NEXTSPACEEND,
571 	MODEKEYCOPY_NEXTWORD,
572 	MODEKEYCOPY_NEXTWORDEND,
573 	MODEKEYCOPY_OTHEREND,
574 	MODEKEYCOPY_PREVIOUSPAGE,
575 	MODEKEYCOPY_PREVIOUSSPACE,
576 	MODEKEYCOPY_PREVIOUSWORD,
577 	MODEKEYCOPY_RECTANGLETOGGLE,
578 	MODEKEYCOPY_RIGHT,
579 	MODEKEYCOPY_SCROLLDOWN,
580 	MODEKEYCOPY_SCROLLUP,
581 	MODEKEYCOPY_SEARCHAGAIN,
582 	MODEKEYCOPY_SEARCHDOWN,
583 	MODEKEYCOPY_SEARCHREVERSE,
584 	MODEKEYCOPY_SEARCHUP,
585 	MODEKEYCOPY_SELECTLINE,
586 	MODEKEYCOPY_STARTNAMEDBUFFER,
587 	MODEKEYCOPY_STARTNUMBERPREFIX,
588 	MODEKEYCOPY_STARTOFLINE,
589 	MODEKEYCOPY_STARTSELECTION,
590 	MODEKEYCOPY_TOPLINE,
591 	MODEKEYCOPY_UP,
592 };
593 
594 /* Entry in the default mode key tables. */
595 struct mode_key_entry {
596 	int			key;
597 
598 	/*
599 	 * Editing mode for vi: 0 is edit mode, keys not in the table are
600 	 * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
601 	 * are returned as MODEKEY_NONE. This is also matched on, allowing some
602 	 * keys to be bound in edit mode.
603 	 */
604 	int			mode;
605 	enum mode_key_cmd	cmd;
606 };
607 
608 /* Data required while mode keys are in use. */
609 struct mode_key_data {
610 	struct mode_key_tree   *tree;
611 	int			mode;
612 };
613 #define MODEKEY_EMACS 0
614 #define MODEKEY_VI 1
615 
616 /* Binding between a key and a command. */
617 struct mode_key_binding {
618 	int				 key;
619 
620 	int				 mode;
621 	enum mode_key_cmd		 cmd;
622 	const char			*arg;
623 
624 	RB_ENTRY(mode_key_binding)	 entry;
625 };
626 RB_HEAD(mode_key_tree, mode_key_binding);
627 
628 /* Command to string mapping. */
629 struct mode_key_cmdstr {
630 	enum mode_key_cmd	 cmd;
631 	const char		*name;
632 };
633 
634 /* Named mode key table description. */
635 struct mode_key_table {
636 	const char			*name;
637 	const struct mode_key_cmdstr	*cmdstr;
638 	struct mode_key_tree		*tree;
639 	const struct mode_key_entry	*table;	/* default entries */
640 };
641 
642 /* Modes. */
643 #define MODE_CURSOR 0x1
644 #define MODE_INSERT 0x2
645 #define MODE_KCURSOR 0x4
646 #define MODE_KKEYPAD 0x8	/* set = application, clear = number */
647 #define MODE_WRAP 0x10		/* whether lines wrap */
648 #define MODE_MOUSE_STANDARD 0x20
649 #define MODE_MOUSE_BUTTON 0x40
650 #define MODE_MOUSE_ANY 0x80
651 #define MODE_MOUSE_UTF8 0x100
652 #define MODE_MOUSE_SGR 0x200
653 #define MODE_BRACKETPASTE 0x400
654 #define MODE_FOCUSON 0x800
655 
656 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)
657 
658 /* A single UTF-8 character. */
659 struct utf8_data {
660 	u_char	data[UTF8_SIZE];
661 
662 	size_t	have;
663 	size_t	size;
664 
665 	u_int	width;
666 };
667 
668 /* Grid attributes. */
669 #define GRID_ATTR_BRIGHT 0x1
670 #define GRID_ATTR_DIM 0x2
671 #define GRID_ATTR_UNDERSCORE 0x4
672 #define GRID_ATTR_BLINK 0x8
673 #define GRID_ATTR_REVERSE 0x10
674 #define GRID_ATTR_HIDDEN 0x20
675 #define GRID_ATTR_ITALICS 0x40
676 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
677 
678 /* Grid flags. */
679 #define GRID_FLAG_FG256 0x1
680 #define GRID_FLAG_BG256 0x2
681 #define GRID_FLAG_PADDING 0x4
682 
683 /* Grid line flags. */
684 #define GRID_LINE_WRAPPED 0x1
685 
686 /* Grid cell data. */
687 struct grid_cell {
688 	u_char	attr;
689 	u_char	flags;
690 	u_char	fg;
691 	u_char	bg;
692 
693 	u_char	xstate; /* top 4 bits width, bottom 4 bits size */
694 	u_char	xdata[UTF8_SIZE];
695 } __packed;
696 
697 /* Grid line. */
698 struct grid_line {
699 	u_int	cellsize;
700 	struct grid_cell *celldata;
701 
702 	int	flags;
703 } __packed;
704 
705 /* Entire grid of cells. */
706 struct grid {
707 	int	flags;
708 #define GRID_HISTORY 0x1	/* scroll lines into history */
709 
710 	u_int	sx;
711 	u_int	sy;
712 
713 	u_int	hsize;
714 	u_int	hlimit;
715 
716 	struct grid_line *linedata;
717 };
718 
719 /* Option data structures. */
720 struct options_entry {
721 	char		*name;
722 
723 	enum {
724 		OPTIONS_STRING,
725 		OPTIONS_NUMBER,
726 		OPTIONS_STYLE
727 	} type;
728 
729 	char			*str;
730 	long long	 	 num;
731 	struct grid_cell	 style;
732 
733 	RB_ENTRY(options_entry) entry;
734 };
735 
736 struct options {
737 	RB_HEAD(options_tree, options_entry) tree;
738 	struct options	*parent;
739 };
740 
741 /* Scheduled job. */
742 struct job {
743 	char		*cmd;
744 	pid_t		 pid;
745 	int		 status;
746 
747 	int		 fd;
748 	struct bufferevent *event;
749 
750 	void		(*callbackfn)(struct job *);
751 	void		(*freefn)(void *);
752 	void		*data;
753 
754 	LIST_ENTRY(job)	 lentry;
755 };
756 LIST_HEAD(joblist, job);
757 
758 /* Screen selection. */
759 struct screen_sel {
760 	int		 flag;
761 	int		 rectflag;
762 
763 	u_int		 sx;
764 	u_int		 sy;
765 
766 	u_int		 ex;
767 	u_int		 ey;
768 
769 	struct grid_cell cell;
770 };
771 
772 /* Virtual screen. */
773 struct screen {
774 	char		*title;
775 
776 	struct grid	*grid;		/* grid data */
777 
778 	u_int		 cx;		/* cursor x */
779 	u_int		 cy;		/* cursor y */
780 
781 	u_int		 cstyle;	/* cursor style */
782 	char		*ccolour;	/* cursor colour string */
783 
784 	u_int		 rupper;	/* scroll region top */
785 	u_int		 rlower;	/* scroll region bottom */
786 
787 	int		 mode;
788 
789 	bitstr_t	*tabs;
790 
791 	struct screen_sel sel;
792 };
793 
794 /* Screen write context. */
795 struct screen_write_ctx {
796 	struct window_pane *wp;
797 	struct screen	*s;
798 };
799 
800 /* Screen size. */
801 #define screen_size_x(s) ((s)->grid->sx)
802 #define screen_size_y(s) ((s)->grid->sy)
803 #define screen_hsize(s) ((s)->grid->hsize)
804 #define screen_hlimit(s) ((s)->grid->hlimit)
805 
806 /* Input parser cell. */
807 struct input_cell {
808 	struct grid_cell	cell;
809 	int			set;
810 	int			g0set;	/* 1 if ACS */
811 	int			g1set;	/* 1 if ACS */
812 };
813 
814 /* Input parser context. */
815 struct input_ctx {
816 	struct window_pane     *wp;
817 	struct screen_write_ctx ctx;
818 
819 	struct input_cell	cell;
820 
821 	struct input_cell	old_cell;
822 	u_int 			old_cx;
823 	u_int			old_cy;
824 
825 	u_char			interm_buf[4];
826 	size_t			interm_len;
827 
828 	u_char			param_buf[64];
829 	size_t			param_len;
830 
831 #define INPUT_BUF_START 32
832 #define INPUT_BUF_LIMIT 1048576
833 	u_char		       *input_buf;
834 	size_t			input_len;
835 	size_t			input_space;
836 
837 	int			param_list[24];	/* -1 not present */
838 	u_int			param_list_len;
839 
840 	struct utf8_data	utf8data;
841 
842 	int			ch;
843 	int			flags;
844 #define INPUT_DISCARD 0x1
845 
846 	const struct input_state *state;
847 
848 	/*
849 	 * All input received since we were last in the ground state. Sent to
850 	 * control clients on connection.
851 	 */
852 	struct evbuffer	 	*since_ground;
853 };
854 
855 /*
856  * Window mode. Windows can be in several modes and this is used to call the
857  * right function to handle input and output.
858  */
859 struct session;
860 struct window;
861 struct mouse_event;
862 struct window_mode {
863 	struct screen *(*init)(struct window_pane *);
864 	void	(*free)(struct window_pane *);
865 	void	(*resize)(struct window_pane *, u_int, u_int);
866 	void	(*key)(struct window_pane *, struct session *, int);
867 	void	(*mouse)(struct window_pane *,
868 		    struct session *, struct mouse_event *);
869 	void	(*timer)(struct window_pane *);
870 };
871 
872 /* Structures for choose mode. */
873 struct window_choose_data {
874 	struct client		*start_client;
875 	struct session		*start_session;
876 
877 	u_int			 idx;
878 	int			 type;
879 #define TREE_OTHER 0x0
880 #define TREE_WINDOW 0x1
881 #define TREE_SESSION 0x2
882 
883 	struct session		*tree_session; /* session of items in tree */
884 
885 	struct winlink		*wl;
886 	int			 pane_id;
887 
888 	char		        *ft_template;
889 	struct format_tree	*ft;
890 
891 	char			*command;
892 };
893 
894 struct window_choose_mode_item {
895 	struct window_choose_data	*wcd;
896 	char				*name;
897 	int				 pos;
898 	int				 state;
899 #define TREE_EXPANDED 0x1
900 };
901 
902 /* Child window structure. */
903 struct window_pane {
904 	u_int		 id;
905 	u_int		 active_point;
906 
907 	struct window	*window;
908 
909 	struct layout_cell *layout_cell;
910 	struct layout_cell *saved_layout_cell;
911 
912 	u_int		 sx;
913 	u_int		 sy;
914 
915 	u_int		 xoff;
916 	u_int		 yoff;
917 
918 	int		 flags;
919 #define PANE_REDRAW 0x1
920 #define PANE_DROP 0x2
921 #define PANE_FOCUSED 0x4
922 #define PANE_RESIZE 0x8
923 #define PANE_FOCUSPUSH 0x10
924 
925 	int		 argc;
926 	char	       **argv;
927 	char		*shell;
928 	int		 cwd;
929 
930 	pid_t		 pid;
931 	char		 tty[TTY_NAME_MAX];
932 
933 	u_int		 changes;
934 	struct event	 changes_timer;
935 	u_int		 changes_redraw;
936 
937 	int		 fd;
938 	struct bufferevent *event;
939 
940 	struct input_ctx ictx;
941 
942 	int		 pipe_fd;
943 	struct bufferevent *pipe_event;
944 	size_t		 pipe_off;
945 
946 	struct screen	*screen;
947 	struct screen	 base;
948 
949 	/* Saved in alternative screen mode. */
950 	u_int		 saved_cx;
951 	u_int		 saved_cy;
952 	struct grid	*saved_grid;
953 	struct grid_cell saved_cell;
954 
955 	const struct window_mode *mode;
956 	void		*modedata;
957 
958 	TAILQ_ENTRY(window_pane) entry;
959 	RB_ENTRY(window_pane) tree_entry;
960 };
961 TAILQ_HEAD(window_panes, window_pane);
962 RB_HEAD(window_pane_tree, window_pane);
963 ARRAY_DECL(window_pane_list, struct window_pane *);
964 
965 /* Window structure. */
966 struct window {
967 	u_int		 id;
968 	char		*name;
969 	struct event	 name_timer;
970 	struct timeval   silence_timer;
971 
972 	struct window_pane *active;
973 	struct window_pane *last;
974 	struct window_panes panes;
975 
976 	int		 lastlayout;
977 	struct layout_cell *layout_root;
978 	struct layout_cell *saved_layout_root;
979 
980 	u_int		 sx;
981 	u_int		 sy;
982 
983 	int		 flags;
984 #define WINDOW_BELL 0x1
985 #define WINDOW_ACTIVITY 0x2
986 #define WINDOW_REDRAW 0x4
987 #define WINDOW_SILENCE 0x8
988 #define WINDOW_ZOOMED 0x10
989 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
990 
991 	struct options	 options;
992 
993 	u_int		 references;
994 };
995 ARRAY_DECL(windows, struct window *);
996 
997 /* Entry on local window list. */
998 struct winlink {
999 	int		 idx;
1000 	struct window	*window;
1001 
1002 	size_t		 status_width;
1003 	struct grid_cell status_cell;
1004 	char		*status_text;
1005 
1006 	int              flags;
1007 #define WINLINK_BELL 0x1
1008 #define WINLINK_ACTIVITY 0x2
1009 #define WINLINK_SILENCE 0x4
1010 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1011 
1012 	RB_ENTRY(winlink) entry;
1013 	TAILQ_ENTRY(winlink) sentry;
1014 };
1015 RB_HEAD(winlinks, winlink);
1016 TAILQ_HEAD(winlink_stack, winlink);
1017 
1018 /* Layout direction. */
1019 enum layout_type {
1020 	LAYOUT_LEFTRIGHT,
1021 	LAYOUT_TOPBOTTOM,
1022 	LAYOUT_WINDOWPANE
1023 };
1024 
1025 /* Layout cells queue. */
1026 TAILQ_HEAD(layout_cells, layout_cell);
1027 
1028 /* Layout cell. */
1029 struct layout_cell {
1030 	enum layout_type type;
1031 
1032 	struct layout_cell *parent;
1033 
1034 	u_int		 sx;
1035 	u_int		 sy;
1036 
1037 	u_int		 xoff;
1038 	u_int		 yoff;
1039 
1040 	struct window_pane *wp;
1041 	struct layout_cells cells;
1042 
1043 	TAILQ_ENTRY(layout_cell) entry;
1044 };
1045 
1046 /* Paste buffer. */
1047 struct paste_buffer {
1048 	char		*data;
1049 	size_t		 size;
1050 
1051 	char		*name;
1052 	int		 automatic;
1053 	u_int		 order;
1054 
1055 	RB_ENTRY(paste_buffer) name_entry;
1056 	RB_ENTRY(paste_buffer) time_entry;
1057 };
1058 
1059 /* Environment variable. */
1060 struct environ_entry {
1061 	char		*name;
1062 	char		*value;
1063 
1064 	RB_ENTRY(environ_entry) entry;
1065 };
1066 RB_HEAD(environ, environ_entry);
1067 
1068 /* Client session. */
1069 struct session_group {
1070 	TAILQ_HEAD(, session) sessions;
1071 
1072 	TAILQ_ENTRY(session_group) entry;
1073 };
1074 TAILQ_HEAD(session_groups, session_group);
1075 
1076 struct session {
1077 	u_int		 id;
1078 
1079 	char		*name;
1080 	int		 cwd;
1081 
1082 	struct timeval	 creation_time;
1083 	struct timeval	 activity_time;
1084 	struct timeval	 last_activity_time;
1085 
1086 	u_int		 sx;
1087 	u_int		 sy;
1088 
1089 	struct winlink	*curw;
1090 	struct winlink_stack lastw;
1091 	struct winlinks	 windows;
1092 
1093 	struct options	 options;
1094 
1095 #define SESSION_UNATTACHED 0x1	/* not attached to any clients */
1096 	int		 flags;
1097 
1098 	u_int            attached;
1099 
1100 	struct termios	*tio;
1101 
1102 	struct environ	 environ;
1103 
1104 	int		 references;
1105 
1106 	TAILQ_ENTRY(session) gentry;
1107 	RB_ENTRY(session)    entry;
1108 };
1109 RB_HEAD(sessions, session);
1110 ARRAY_DECL(sessionslist, struct session *);
1111 
1112 /* TTY information. */
1113 struct tty_key {
1114 	char		 ch;
1115 	int		 key;
1116 
1117 	struct tty_key	*left;
1118 	struct tty_key	*right;
1119 
1120 	struct tty_key	*next;
1121 };
1122 
1123 struct tty_term {
1124 	char		*name;
1125 	u_int		 references;
1126 
1127 	char		 acs[UCHAR_MAX + 1][2];
1128 
1129 	struct tty_code	 codes[NTTYCODE];
1130 
1131 #define TERM_256COLOURS 0x1
1132 #define TERM_EARLYWRAP 0x2
1133 	int		 flags;
1134 
1135 	LIST_ENTRY(tty_term) entry;
1136 };
1137 LIST_HEAD(tty_terms, tty_term);
1138 
1139 /* Mouse button masks. */
1140 #define MOUSE_MASK_BUTTONS 3
1141 #define MOUSE_MASK_SHIFT 4
1142 #define MOUSE_MASK_META 8
1143 #define MOUSE_MASK_CTRL 16
1144 #define MOUSE_MASK_DRAG 32
1145 #define MOUSE_MASK_WHEEL 64
1146 
1147 /* Mouse wheel states. */
1148 #define MOUSE_WHEEL_UP 0
1149 #define MOUSE_WHEEL_DOWN 1
1150 
1151 /* Mouse wheel multipler. */
1152 #define MOUSE_WHEEL_SCALE 3
1153 
1154 /* Mouse event bits. */
1155 #define MOUSE_EVENT_DOWN 0x1
1156 #define MOUSE_EVENT_DRAG 0x2
1157 #define MOUSE_EVENT_UP 0x4
1158 #define MOUSE_EVENT_CLICK 0x8
1159 #define MOUSE_EVENT_WHEEL 0x10
1160 
1161 /* Mouse flag bits. */
1162 #define MOUSE_RESIZE_PANE 0x1
1163 
1164 /*
1165  * Mouse input. When sent by xterm:
1166  *
1167  * - buttons are in the bottom two bits: 0 = b1; 1 = b2; 2 = b3; 3 = released
1168  * - bits 3, 4 and 5 are for keys
1169  * - bit 6 is set for dragging
1170  * - bit 7 for buttons 4 and 5
1171  *
1172  * With the SGR 1006 extension the released button becomes known. Store these
1173  * in separate fields and store the value converted to the old format in xb.
1174  */
1175 struct mouse_event {
1176 	u_int	xb;
1177 
1178 	u_int	x;
1179 	u_int	lx;
1180 	u_int	sx;
1181 
1182 	u_int	y;
1183 	u_int	ly;
1184 	u_int	sy;
1185 
1186 	u_int   sgr;		/* whether the input arrived in SGR format */
1187 	u_int   sgr_xb;		/* only for SGR: the unmangled button */
1188 	u_int   sgr_rel;	/* only for SGR: if it is a release event */
1189 
1190 	u_int	button;
1191 	u_int	clicks;
1192 	u_int	scroll;
1193 
1194 	int	wheel;
1195 	int     event;
1196 	int     flags;
1197 };
1198 
1199 struct tty {
1200 	struct client	*client;
1201 
1202 	char		*path;
1203 	u_int		 class;
1204 
1205 	u_int		 sx;
1206 	u_int		 sy;
1207 
1208 	u_int		 cx;
1209 	u_int		 cy;
1210 	u_int		 cstyle;
1211 	char		*ccolour;
1212 
1213 	int		 mode;
1214 
1215 	u_int		 rlower;
1216 	u_int		 rupper;
1217 
1218 	char		*termname;
1219 	struct tty_term	*term;
1220 
1221 	int		 fd;
1222 	struct bufferevent *event;
1223 
1224 	int		 log_fd;
1225 
1226 	struct termios	 tio;
1227 
1228 	struct grid_cell cell;
1229 
1230 #define TTY_NOCURSOR 0x1
1231 #define TTY_FREEZE 0x2
1232 #define TTY_TIMER 0x4
1233 #define TTY_UTF8 0x8
1234 #define TTY_STARTED 0x10
1235 #define TTY_OPENED 0x20
1236 #define TTY_FOCUS 0x40
1237 	int		 flags;
1238 
1239 	int		 term_flags;
1240 
1241 	struct mouse_event mouse;
1242 
1243 	struct event	 key_timer;
1244 	struct tty_key	*key_tree;
1245 };
1246 
1247 /* TTY command context and function pointer. */
1248 struct tty_ctx {
1249 	struct window_pane *wp;
1250 
1251 	const struct grid_cell *cell;
1252 
1253 	u_int		 num;
1254 	void		*ptr;
1255 
1256 	/*
1257 	 * Cursor and region position before the screen was updated - this is
1258 	 * where the command should be applied; the values in the screen have
1259 	 * already been updated.
1260 	 */
1261 	u_int		 ocx;
1262 	u_int		 ocy;
1263 
1264 	u_int		 orupper;
1265 	u_int		 orlower;
1266 
1267 	u_int		 xoff;
1268 	u_int		 yoff;
1269 
1270 	/* Saved last cell on line. */
1271 	struct grid_cell last_cell;
1272 	u_int		 last_width;
1273 };
1274 
1275 /* Saved message entry. */
1276 struct message_entry {
1277 	char   *msg;
1278 	time_t	msg_time;
1279 };
1280 
1281 /* Status output data from a job. */
1282 struct status_out {
1283 	char   *cmd;
1284 	char   *out;
1285 
1286 	RB_ENTRY(status_out) entry;
1287 };
1288 RB_HEAD(status_out_tree, status_out);
1289 
1290 /* Client connection. */
1291 struct client {
1292 	struct imsgbuf	 ibuf;
1293 
1294 	int		 fd;
1295 	struct event	 event;
1296 	int		 retval;
1297 
1298 	struct timeval	 creation_time;
1299 	struct timeval	 activity_time;
1300 
1301 	struct environ	 environ;
1302 
1303 	char		*title;
1304 	int		 cwd;
1305 
1306 	char		*term;
1307 	char		*ttyname;
1308 	struct tty	 tty;
1309 
1310 	void		(*stdin_callback)(struct client *, int, void *);
1311 	void		*stdin_callback_data;
1312 	struct evbuffer	*stdin_data;
1313 	int              stdin_closed;
1314 	struct evbuffer	*stdout_data;
1315 	struct evbuffer	*stderr_data;
1316 
1317 	struct event	 repeat_timer;
1318 
1319 	struct status_out_tree status_old;
1320 	struct status_out_tree status_new;
1321 	struct timeval	 status_timer;
1322 	struct screen	 status;
1323 
1324 #define CLIENT_TERMINAL 0x1
1325 #define CLIENT_PREFIX 0x2
1326 #define CLIENT_EXIT 0x4
1327 #define CLIENT_REDRAW 0x8
1328 #define CLIENT_STATUS 0x10
1329 #define CLIENT_REPEAT 0x20
1330 #define CLIENT_SUSPENDED 0x40
1331 #define CLIENT_BAD 0x80
1332 #define CLIENT_IDENTIFY 0x100
1333 #define CLIENT_DEAD 0x200
1334 #define CLIENT_BORDERS 0x400
1335 #define CLIENT_READONLY 0x800
1336 #define CLIENT_REDRAWWINDOW 0x1000
1337 #define CLIENT_CONTROL 0x2000
1338 #define CLIENT_CONTROLCONTROL 0x4000
1339 #define CLIENT_FOCUSED 0x8000
1340 #define CLIENT_UTF8 0x10000
1341 #define CLIENT_256COLOURS 0x20000
1342 #define CLIENT_IDENTIFIED 0x40000
1343 	int		 flags;
1344 
1345 	struct event	 identify_timer;
1346 
1347 	char		*message_string;
1348 	struct event	 message_timer;
1349 	ARRAY_DECL(, struct message_entry) message_log;
1350 
1351 	char		*prompt_string;
1352 	char		*prompt_buffer;
1353 	size_t		 prompt_index;
1354 	int		 (*prompt_callbackfn)(void *, const char *);
1355 	void		 (*prompt_freefn)(void *);
1356 	void		*prompt_data;
1357 	u_int            prompt_hindex;
1358 
1359 #define PROMPT_SINGLE 0x1
1360 	int		 prompt_flags;
1361 
1362 	struct mode_key_data prompt_mdata;
1363 
1364 	struct session	*session;
1365 	struct session	*last_session;
1366 
1367 	int		 wlmouse;
1368 
1369 	struct cmd_q	*cmdq;
1370 	int		 references;
1371 };
1372 ARRAY_DECL(clients, struct client *);
1373 
1374 /* Parsed arguments structures. */
1375 struct args_entry {
1376 	u_char			 flag;
1377 	char			*value;
1378 	RB_ENTRY(args_entry)	 entry;
1379 };
1380 RB_HEAD(args_tree, args_entry);
1381 
1382 struct args {
1383 	struct args_tree	  tree;
1384 	int		 	  argc;
1385 	char	       		**argv;
1386 };
1387 
1388 /* Command and list of commands. */
1389 struct cmd {
1390 	const struct cmd_entry	*entry;
1391 	struct args		*args;
1392 
1393 	char			*file;
1394 	u_int			 line;
1395 
1396 #define CMD_CONTROL 0x1
1397 	int			 flags;
1398 
1399 	TAILQ_ENTRY(cmd)	 qentry;
1400 };
1401 struct cmd_list {
1402 	int		 	 references;
1403 	TAILQ_HEAD(, cmd) 	 list;
1404 };
1405 
1406 /* Command return values. */
1407 enum cmd_retval {
1408 	CMD_RETURN_ERROR = -1,
1409 	CMD_RETURN_NORMAL = 0,
1410 	CMD_RETURN_WAIT,
1411 	CMD_RETURN_STOP
1412 };
1413 
1414 /* Command queue entry. */
1415 struct cmd_q_item {
1416 	struct cmd_list		*cmdlist;
1417 	TAILQ_ENTRY(cmd_q_item)	 qentry;
1418 };
1419 TAILQ_HEAD(cmd_q_items, cmd_q_item);
1420 
1421 /* Command queue. */
1422 struct cmd_q {
1423 	int			 references;
1424 	int			 dead;
1425 
1426 	struct client		*client;
1427 	int			 client_exit;
1428 
1429 	struct cmd_q_items	 queue;
1430 	struct cmd_q_item	*item;
1431 	struct cmd		*cmd;
1432 
1433 	time_t			 time;
1434 	u_int			 number;
1435 
1436 	void			 (*emptyfn)(struct cmd_q *);
1437 	void			*data;
1438 
1439 	TAILQ_ENTRY(cmd_q)       waitentry;
1440 };
1441 
1442 /* Command definition. */
1443 struct cmd_entry {
1444 	const char	*name;
1445 	const char	*alias;
1446 
1447 	const char	*args_template;
1448 	int		 args_lower;
1449 	int		 args_upper;
1450 
1451 	const char	*usage;
1452 
1453 #define CMD_STARTSERVER 0x1
1454 #define CMD_CANTNEST 0x2
1455 #define CMD_READONLY 0x4
1456 	int		 flags;
1457 
1458 	void		 (*key_binding)(struct cmd *, int);
1459 	enum cmd_retval	 (*exec)(struct cmd *, struct cmd_q *);
1460 };
1461 
1462 /* Key binding. */
1463 struct key_binding {
1464 	int		 key;
1465 	struct cmd_list	*cmdlist;
1466 	int		 can_repeat;
1467 
1468 	RB_ENTRY(key_binding) entry;
1469 };
1470 RB_HEAD(key_bindings, key_binding);
1471 
1472 /*
1473  * Option table entries. The option table is the user-visible part of the
1474  * option, as opposed to the internal options (struct option) which are just
1475  * number or string.
1476  */
1477 enum options_table_type {
1478 	OPTIONS_TABLE_STRING,
1479 	OPTIONS_TABLE_NUMBER,
1480 	OPTIONS_TABLE_KEY,
1481 	OPTIONS_TABLE_COLOUR,
1482 	OPTIONS_TABLE_ATTRIBUTES,
1483 	OPTIONS_TABLE_FLAG,
1484 	OPTIONS_TABLE_CHOICE,
1485 	OPTIONS_TABLE_STYLE
1486 };
1487 
1488 struct options_table_entry {
1489 	const char	       *name;
1490 	enum options_table_type	type;
1491 
1492 	u_int		 	minimum;
1493 	u_int		 	maximum;
1494 	const char	      **choices;
1495 
1496 	const char	       *default_str;
1497 	long long		default_num;
1498 
1499 	const char	       *style;
1500 };
1501 
1502 /* Tree of format entries. */
1503 struct format_entry {
1504 	char		       *key;
1505 	char		       *value;
1506 
1507 	RB_ENTRY(format_entry)	entry;
1508 };
1509 RB_HEAD(format_tree, format_entry);
1510 
1511 /* Common command usages. */
1512 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1513 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1514 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1515 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1516 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1517 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1518 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1519 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1520 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1521 
1522 /* tmux.c */
1523 extern struct options global_options;
1524 extern struct options global_s_options;
1525 extern struct options global_w_options;
1526 extern struct environ global_environ;
1527 extern struct event_base *ev_base;
1528 extern char	*cfg_file;
1529 extern char	*shell_cmd;
1530 extern int	 debug_level;
1531 extern time_t	 start_time;
1532 extern char	 socket_path[MAXPATHLEN];
1533 extern int	 login_shell;
1534 extern char	*environ_path;
1535 void		 logfile(const char *);
1536 const char	*getshell(void);
1537 int		 checkshell(const char *);
1538 int		 areshell(const char *);
1539 void		 setblocking(int, int);
1540 __dead void	 shell_exec(const char *, const char *);
1541 
1542 /* cfg.c */
1543 extern struct cmd_q *cfg_cmd_q;
1544 extern int cfg_finished;
1545 extern int cfg_references;
1546 extern struct causelist cfg_causes;
1547 extern struct client *cfg_client;
1548 int		 load_cfg(const char *, struct cmd_q *, char **);
1549 void		 cfg_default_done(struct cmd_q *);
1550 void		 cfg_show_causes(struct session *);
1551 
1552 /* format.c */
1553 int		 format_cmp(struct format_entry *, struct format_entry *);
1554 RB_PROTOTYPE(format_tree, format_entry, entry, format_cmp);
1555 struct format_tree *format_create(void);
1556 void		 format_free(struct format_tree *);
1557 void printflike3 format_add(struct format_tree *, const char *, const char *,
1558 		     ...);
1559 const char	*format_find(struct format_tree *, const char *);
1560 char		*format_expand(struct format_tree *, const char *);
1561 void		 format_session(struct format_tree *, struct session *);
1562 void		 format_client(struct format_tree *, struct client *);
1563 void		 format_window(struct format_tree *, struct window *);
1564 void		 format_winlink(struct format_tree *, struct session *,
1565 		     struct winlink *);
1566 void		 format_window_pane(struct format_tree *,
1567 		     struct window_pane *);
1568 void		 format_paste_buffer(struct format_tree *,
1569 		     struct paste_buffer *, int);
1570 
1571 /* mode-key.c */
1572 extern const struct mode_key_table mode_key_tables[];
1573 extern struct mode_key_tree mode_key_tree_vi_edit;
1574 extern struct mode_key_tree mode_key_tree_vi_choice;
1575 extern struct mode_key_tree mode_key_tree_vi_copy;
1576 extern struct mode_key_tree mode_key_tree_emacs_edit;
1577 extern struct mode_key_tree mode_key_tree_emacs_choice;
1578 extern struct mode_key_tree mode_key_tree_emacs_copy;
1579 int	mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1580 RB_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1581 const char *mode_key_tostring(const struct mode_key_cmdstr *,
1582 	    enum mode_key_cmd);
1583 enum mode_key_cmd mode_key_fromstring(const struct mode_key_cmdstr *,
1584 	    const char *);
1585 const struct mode_key_table *mode_key_findtable(const char *);
1586 void	mode_key_init_trees(void);
1587 void	mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1588 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int, const char **);
1589 
1590 /* notify.c */
1591 void	notify_enable(void);
1592 void	notify_disable(void);
1593 void	notify_input(struct window_pane *, struct evbuffer *);
1594 void	notify_window_layout_changed(struct window *);
1595 void	notify_window_unlinked(struct session *, struct window *);
1596 void	notify_window_linked(struct session *, struct window *);
1597 void	notify_window_renamed(struct window *);
1598 void	notify_attached_session_changed(struct client *);
1599 void	notify_session_renamed(struct session *);
1600 void	notify_session_created(struct session *);
1601 void	notify_session_closed(struct session *);
1602 
1603 /* options.c */
1604 int	options_cmp(struct options_entry *, struct options_entry *);
1605 RB_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1606 void	options_init(struct options *, struct options *);
1607 void	options_free(struct options *);
1608 struct options_entry *options_find1(struct options *, const char *);
1609 struct options_entry *options_find(struct options *, const char *);
1610 void	options_remove(struct options *, const char *);
1611 struct options_entry *printflike3 options_set_string(struct options *,
1612 	    const char *, const char *, ...);
1613 char   *options_get_string(struct options *, const char *);
1614 struct options_entry *options_set_number(struct options *, const char *,
1615 	    long long);
1616 long long options_get_number(struct options *, const char *);
1617 struct options_entry *options_set_style(struct options *, const char *,
1618 	    const char *, int);
1619 struct grid_cell *options_get_style(struct options *, const char *);
1620 
1621 /* options-table.c */
1622 extern const struct options_table_entry server_options_table[];
1623 extern const struct options_table_entry session_options_table[];
1624 extern const struct options_table_entry window_options_table[];
1625 void	options_table_populate_tree(const struct options_table_entry *,
1626 	    struct options *);
1627 const char *options_table_print_entry(const struct options_table_entry *,
1628 	    struct options_entry *, int);
1629 int	options_table_find(const char *, const struct options_table_entry **,
1630 	    const struct options_table_entry **);
1631 
1632 /* job.c */
1633 extern struct joblist all_jobs;
1634 struct job *job_run(const char *, struct session *,
1635 	    void (*)(struct job *), void (*)(void *), void *);
1636 void	job_free(struct job *);
1637 void	job_died(struct job *, int);
1638 
1639 /* environ.c */
1640 int	environ_cmp(struct environ_entry *, struct environ_entry *);
1641 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1642 void	environ_init(struct environ *);
1643 void	environ_free(struct environ *);
1644 void	environ_copy(struct environ *, struct environ *);
1645 struct environ_entry *environ_find(struct environ *, const char *);
1646 void	environ_set(struct environ *, const char *, const char *);
1647 void	environ_put(struct environ *, const char *);
1648 void	environ_unset(struct environ *, const char *);
1649 void	environ_update(const char *, struct environ *, struct environ *);
1650 void	environ_push(struct environ *);
1651 
1652 /* tty.c */
1653 void	tty_init_termios(int, struct termios *, struct bufferevent *);
1654 void	tty_raw(struct tty *, const char *);
1655 void	tty_attributes(struct tty *, const struct grid_cell *);
1656 void	tty_reset(struct tty *);
1657 void	tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1658 void	tty_region(struct tty *, u_int, u_int);
1659 void	tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1660 void	tty_cursor(struct tty *, u_int, u_int);
1661 void	tty_putcode(struct tty *, enum tty_code_code);
1662 void	tty_putcode1(struct tty *, enum tty_code_code, int);
1663 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
1664 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
1665 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
1666 	    const void *);
1667 void	tty_puts(struct tty *, const char *);
1668 void	tty_putc(struct tty *, u_char);
1669 void	tty_putn(struct tty *, const void *, size_t, u_int);
1670 void	tty_init(struct tty *, struct client *, int, char *);
1671 int	tty_resize(struct tty *);
1672 int	tty_set_size(struct tty *, u_int, u_int);
1673 void	tty_set_class(struct tty *, u_int);
1674 void	tty_start_tty(struct tty *);
1675 void	tty_stop_tty(struct tty *);
1676 void	tty_set_title(struct tty *, const char *);
1677 void	tty_update_mode(struct tty *, int, struct screen *);
1678 void	tty_force_cursor_colour(struct tty *, const char *);
1679 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1680 int	tty_open(struct tty *, char **);
1681 void	tty_close(struct tty *);
1682 void	tty_free(struct tty *);
1683 void	tty_write(
1684 	    void (*)(struct tty *, const struct tty_ctx *), struct tty_ctx *);
1685 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1686 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
1687 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1688 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1689 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1690 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1691 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1692 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1693 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1694 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
1695 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1696 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
1697 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1698 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1699 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1700 void	tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1701 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1702 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
1703 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
1704 void	tty_bell(struct tty *);
1705 
1706 /* tty-term.c */
1707 extern struct tty_terms tty_terms;
1708 extern const struct tty_term_code_entry tty_term_codes[NTTYCODE];
1709 struct tty_term *tty_term_find(char *, int, char **);
1710 void		 tty_term_free(struct tty_term *);
1711 int		 tty_term_has(struct tty_term *, enum tty_code_code);
1712 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
1713 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
1714 const char	*tty_term_string2(
1715 		     struct tty_term *, enum tty_code_code, int, int);
1716 const char	*tty_term_ptr1(
1717 		     struct tty_term *, enum tty_code_code, const void *);
1718 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
1719 		     const void *, const void *);
1720 int		 tty_term_number(struct tty_term *, enum tty_code_code);
1721 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
1722 
1723 /* tty-acs.c */
1724 const char	*tty_acs_get(struct tty *, u_char);
1725 
1726 /* tty-keys.c */
1727 void	tty_keys_build(struct tty *);
1728 void	tty_keys_free(struct tty *);
1729 int	tty_keys_next(struct tty *);
1730 
1731 /* paste.c */
1732 struct paste_buffer *paste_walk(struct paste_buffer *);
1733 struct paste_buffer *paste_get_top(void);
1734 struct paste_buffer *paste_get_name(const char *);
1735 int		 paste_free_top(void);
1736 int		 paste_free_name(const char *);
1737 void		 paste_add(char *, size_t);
1738 int		 paste_rename(const char *, const char *, char **);
1739 int		 paste_set(char *, size_t, const char *, char **);
1740 char		*paste_make_sample(struct paste_buffer *, int);
1741 void		 paste_send_pane(struct paste_buffer *, struct window_pane *,
1742 		     const char *, int);
1743 
1744 /* arguments.c */
1745 int		 args_cmp(struct args_entry *, struct args_entry *);
1746 RB_PROTOTYPE(args_tree, args_entry, entry, args_cmp);
1747 struct args	*args_create(int, ...);
1748 struct args	*args_parse(const char *, int, char **);
1749 void		 args_free(struct args *);
1750 size_t		 args_print(struct args *, char *, size_t);
1751 int		 args_has(struct args *, u_char);
1752 void		 args_set(struct args *, u_char, const char *);
1753 const char	*args_get(struct args *, u_char);
1754 long long	 args_strtonum(
1755 		    struct args *, u_char, long long, long long, char **);
1756 
1757 /* cmd.c */
1758 int		 cmd_pack_argv(int, char **, char *, size_t);
1759 int		 cmd_unpack_argv(char *, size_t, int, char ***);
1760 char	       **cmd_copy_argv(int, char **);
1761 void		 cmd_free_argv(int, char **);
1762 char		*cmd_stringify_argv(int, char **);
1763 struct cmd	*cmd_parse(int, char **, const char *, u_int, char **);
1764 size_t		 cmd_print(struct cmd *, char *, size_t);
1765 struct session	*cmd_current_session(struct cmd_q *, int);
1766 struct client	*cmd_current_client(struct cmd_q *);
1767 struct client	*cmd_find_client(struct cmd_q *, const char *, int);
1768 struct session	*cmd_find_session(struct cmd_q *, const char *, int);
1769 struct winlink	*cmd_find_window(struct cmd_q *, const char *,
1770 		     struct session **);
1771 int		 cmd_find_index(struct cmd_q *, const char *,
1772 		     struct session **);
1773 struct winlink	*cmd_find_pane(struct cmd_q *, const char *, struct session **,
1774 		     struct window_pane **);
1775 char		*cmd_template_replace(const char *, const char *, int);
1776 struct window	*cmd_lookup_windowid(const char *);
1777 struct window_pane *cmd_lookup_paneid(const char *);
1778 extern const struct cmd_entry *cmd_table[];
1779 extern const struct cmd_entry cmd_attach_session_entry;
1780 extern const struct cmd_entry cmd_bind_key_entry;
1781 extern const struct cmd_entry cmd_break_pane_entry;
1782 extern const struct cmd_entry cmd_capture_pane_entry;
1783 extern const struct cmd_entry cmd_choose_buffer_entry;
1784 extern const struct cmd_entry cmd_choose_client_entry;
1785 extern const struct cmd_entry cmd_choose_session_entry;
1786 extern const struct cmd_entry cmd_choose_tree_entry;
1787 extern const struct cmd_entry cmd_choose_window_entry;
1788 extern const struct cmd_entry cmd_clear_history_entry;
1789 extern const struct cmd_entry cmd_clock_mode_entry;
1790 extern const struct cmd_entry cmd_command_prompt_entry;
1791 extern const struct cmd_entry cmd_confirm_before_entry;
1792 extern const struct cmd_entry cmd_copy_mode_entry;
1793 extern const struct cmd_entry cmd_delete_buffer_entry;
1794 extern const struct cmd_entry cmd_detach_client_entry;
1795 extern const struct cmd_entry cmd_display_message_entry;
1796 extern const struct cmd_entry cmd_display_panes_entry;
1797 extern const struct cmd_entry cmd_down_pane_entry;
1798 extern const struct cmd_entry cmd_find_window_entry;
1799 extern const struct cmd_entry cmd_has_session_entry;
1800 extern const struct cmd_entry cmd_if_shell_entry;
1801 extern const struct cmd_entry cmd_join_pane_entry;
1802 extern const struct cmd_entry cmd_kill_pane_entry;
1803 extern const struct cmd_entry cmd_kill_server_entry;
1804 extern const struct cmd_entry cmd_kill_session_entry;
1805 extern const struct cmd_entry cmd_kill_window_entry;
1806 extern const struct cmd_entry cmd_last_pane_entry;
1807 extern const struct cmd_entry cmd_last_window_entry;
1808 extern const struct cmd_entry cmd_link_window_entry;
1809 extern const struct cmd_entry cmd_list_buffers_entry;
1810 extern const struct cmd_entry cmd_list_clients_entry;
1811 extern const struct cmd_entry cmd_list_commands_entry;
1812 extern const struct cmd_entry cmd_list_keys_entry;
1813 extern const struct cmd_entry cmd_list_panes_entry;
1814 extern const struct cmd_entry cmd_list_sessions_entry;
1815 extern const struct cmd_entry cmd_list_windows_entry;
1816 extern const struct cmd_entry cmd_load_buffer_entry;
1817 extern const struct cmd_entry cmd_lock_client_entry;
1818 extern const struct cmd_entry cmd_lock_server_entry;
1819 extern const struct cmd_entry cmd_lock_session_entry;
1820 extern const struct cmd_entry cmd_move_pane_entry;
1821 extern const struct cmd_entry cmd_move_window_entry;
1822 extern const struct cmd_entry cmd_new_session_entry;
1823 extern const struct cmd_entry cmd_new_window_entry;
1824 extern const struct cmd_entry cmd_next_layout_entry;
1825 extern const struct cmd_entry cmd_next_window_entry;
1826 extern const struct cmd_entry cmd_paste_buffer_entry;
1827 extern const struct cmd_entry cmd_pipe_pane_entry;
1828 extern const struct cmd_entry cmd_previous_layout_entry;
1829 extern const struct cmd_entry cmd_previous_window_entry;
1830 extern const struct cmd_entry cmd_refresh_client_entry;
1831 extern const struct cmd_entry cmd_rename_session_entry;
1832 extern const struct cmd_entry cmd_rename_window_entry;
1833 extern const struct cmd_entry cmd_resize_pane_entry;
1834 extern const struct cmd_entry cmd_respawn_pane_entry;
1835 extern const struct cmd_entry cmd_respawn_window_entry;
1836 extern const struct cmd_entry cmd_rotate_window_entry;
1837 extern const struct cmd_entry cmd_run_shell_entry;
1838 extern const struct cmd_entry cmd_save_buffer_entry;
1839 extern const struct cmd_entry cmd_select_layout_entry;
1840 extern const struct cmd_entry cmd_select_pane_entry;
1841 extern const struct cmd_entry cmd_select_window_entry;
1842 extern const struct cmd_entry cmd_send_keys_entry;
1843 extern const struct cmd_entry cmd_send_prefix_entry;
1844 extern const struct cmd_entry cmd_server_info_entry;
1845 extern const struct cmd_entry cmd_set_buffer_entry;
1846 extern const struct cmd_entry cmd_set_environment_entry;
1847 extern const struct cmd_entry cmd_set_option_entry;
1848 extern const struct cmd_entry cmd_set_window_option_entry;
1849 extern const struct cmd_entry cmd_show_buffer_entry;
1850 extern const struct cmd_entry cmd_show_environment_entry;
1851 extern const struct cmd_entry cmd_show_messages_entry;
1852 extern const struct cmd_entry cmd_show_options_entry;
1853 extern const struct cmd_entry cmd_show_window_options_entry;
1854 extern const struct cmd_entry cmd_source_file_entry;
1855 extern const struct cmd_entry cmd_split_window_entry;
1856 extern const struct cmd_entry cmd_start_server_entry;
1857 extern const struct cmd_entry cmd_suspend_client_entry;
1858 extern const struct cmd_entry cmd_swap_pane_entry;
1859 extern const struct cmd_entry cmd_swap_window_entry;
1860 extern const struct cmd_entry cmd_switch_client_entry;
1861 extern const struct cmd_entry cmd_unbind_key_entry;
1862 extern const struct cmd_entry cmd_unlink_window_entry;
1863 extern const struct cmd_entry cmd_up_pane_entry;
1864 extern const struct cmd_entry cmd_wait_for_entry;
1865 
1866 /* cmd-attach-session.c */
1867 enum cmd_retval	 cmd_attach_session(struct cmd_q *, const char *, int, int,
1868 		     const char *);
1869 
1870 /* cmd-list.c */
1871 struct cmd_list	*cmd_list_parse(int, char **, const char *, u_int, char **);
1872 void		 cmd_list_free(struct cmd_list *);
1873 size_t		 cmd_list_print(struct cmd_list *, char *, size_t);
1874 
1875 /* cmd-queue.c */
1876 struct cmd_q	*cmdq_new(struct client *);
1877 int		 cmdq_free(struct cmd_q *);
1878 void printflike2 cmdq_print(struct cmd_q *, const char *, ...);
1879 void printflike2 cmdq_error(struct cmd_q *, const char *, ...);
1880 int		 cmdq_guard(struct cmd_q *, const char *, int);
1881 void		 cmdq_run(struct cmd_q *, struct cmd_list *);
1882 void		 cmdq_append(struct cmd_q *, struct cmd_list *);
1883 int		 cmdq_continue(struct cmd_q *);
1884 void		 cmdq_flush(struct cmd_q *);
1885 
1886 /* cmd-string.c */
1887 int	cmd_string_parse(const char *, struct cmd_list **, const char *,
1888 	    u_int, char **);
1889 
1890 /* client.c */
1891 int	client_main(int, char **, int);
1892 
1893 /* key-bindings.c */
1894 extern struct key_bindings key_bindings;
1895 int	 key_bindings_cmp(struct key_binding *, struct key_binding *);
1896 RB_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1897 struct key_binding *key_bindings_lookup(int);
1898 void	 key_bindings_add(int, int, struct cmd_list *);
1899 void	 key_bindings_remove(int);
1900 void	 key_bindings_init(void);
1901 void	 key_bindings_dispatch(struct key_binding *, struct client *);
1902 
1903 /* key-string.c */
1904 int	 key_string_lookup_string(const char *);
1905 const char *key_string_lookup_key(int);
1906 
1907 /* server.c */
1908 extern struct clients clients;
1909 extern struct clients dead_clients;
1910 int	 server_start(int, char *);
1911 void	 server_update_socket(void);
1912 void	 server_add_accept(int);
1913 
1914 /* server-client.c */
1915 void	 server_client_handle_key(struct client *, int);
1916 void	 server_client_create(int);
1917 int      server_client_open(struct client *, char **);
1918 void	 server_client_lost(struct client *);
1919 void	 server_client_callback(int, short, void *);
1920 void	 server_client_status_timer(void);
1921 void	 server_client_loop(void);
1922 
1923 /* server-window.c */
1924 void	 server_window_loop(void);
1925 
1926 /* server-fn.c */
1927 void	 server_fill_environ(struct session *, struct environ *);
1928 void	 server_write_ready(struct client *);
1929 int	 server_write_client(struct client *, enum msgtype, const void *,
1930 	     size_t);
1931 void	 server_write_session(struct session *, enum msgtype, const void *,
1932 	     size_t);
1933 void	 server_redraw_client(struct client *);
1934 void	 server_status_client(struct client *);
1935 void	 server_redraw_session(struct session *);
1936 void	 server_redraw_session_group(struct session *);
1937 void	 server_status_session(struct session *);
1938 void	 server_status_session_group(struct session *);
1939 void	 server_redraw_window(struct window *);
1940 void	 server_redraw_window_borders(struct window *);
1941 void	 server_status_window(struct window *);
1942 void	 server_lock(void);
1943 void	 server_lock_session(struct session *);
1944 void	 server_lock_client(struct client *);
1945 int	 server_unlock(const char *);
1946 void	 server_kill_window(struct window *);
1947 int	 server_link_window(struct session *,
1948 	     struct winlink *, struct session *, int, int, int, char **);
1949 void	 server_unlink_window(struct session *, struct winlink *);
1950 void	 server_destroy_pane(struct window_pane *);
1951 void	 server_destroy_session_group(struct session *);
1952 void	 server_destroy_session(struct session *);
1953 void	 server_check_unattached(void);
1954 void	 server_set_identify(struct client *);
1955 void	 server_clear_identify(struct client *);
1956 void	 server_update_event(struct client *);
1957 void	 server_push_stdout(struct client *);
1958 void	 server_push_stderr(struct client *);
1959 int	 server_set_stdin_callback(struct client *, void (*)(struct client *,
1960 	     int, void *), void *, char **);
1961 void	 server_unzoom_window(struct window *);
1962 
1963 /* status.c */
1964 int	 status_out_cmp(struct status_out *, struct status_out *);
1965 RB_PROTOTYPE(status_out_tree, status_out, entry, status_out_cmp);
1966 int	 status_at_line(struct client *);
1967 void	 status_free_jobs(struct status_out_tree *);
1968 void	 status_update_jobs(struct client *);
1969 void	 status_set_window_at(struct client *, u_int);
1970 int	 status_redraw(struct client *);
1971 char	*status_replace(struct client *, struct session *,
1972 	     struct winlink *, struct window_pane *, const char *, time_t, int);
1973 void printflike2 status_message_set(struct client *, const char *, ...);
1974 void	 status_message_clear(struct client *);
1975 int	 status_message_redraw(struct client *);
1976 void	 status_prompt_set(struct client *, const char *, const char *,
1977 	     int (*)(void *, const char *), void (*)(void *), void *, int);
1978 void	 status_prompt_clear(struct client *);
1979 int	 status_prompt_redraw(struct client *);
1980 void	 status_prompt_key(struct client *, int);
1981 void	 status_prompt_update(struct client *, const char *, const char *);
1982 
1983 /* resize.c */
1984 void	 recalculate_sizes(void);
1985 
1986 /* input.c */
1987 void	 input_init(struct window_pane *);
1988 void	 input_free(struct window_pane *);
1989 void	 input_parse(struct window_pane *);
1990 
1991 /* input-key.c */
1992 void	 input_key(struct window_pane *, int);
1993 void	 input_mouse(struct window_pane *, struct session *,
1994 	     struct mouse_event *);
1995 
1996 /* xterm-keys.c */
1997 char	*xterm_keys_lookup(int);
1998 int	 xterm_keys_find(const char *, size_t, size_t *, int *);
1999 
2000 /* colour.c */
2001 void	 colour_set_fg(struct grid_cell *, int);
2002 void	 colour_set_bg(struct grid_cell *, int);
2003 const char *colour_tostring(int);
2004 int	 colour_fromstring(const char *);
2005 u_char	 colour_256to16(u_char);
2006 
2007 /* attributes.c */
2008 const char *attributes_tostring(u_char);
2009 int	 attributes_fromstring(const char *);
2010 
2011 /* grid.c */
2012 extern const struct grid_cell grid_default_cell;
2013 extern const struct grid_cell grid_marker_cell;
2014 struct grid *grid_create(u_int, u_int, u_int);
2015 void	 grid_destroy(struct grid *);
2016 int	 grid_compare(struct grid *, struct grid *);
2017 void	 grid_collect_history(struct grid *);
2018 void	 grid_scroll_history(struct grid *);
2019 void	 grid_scroll_history_region(struct grid *, u_int, u_int);
2020 void	 grid_expand_line(struct grid *, u_int, u_int);
2021 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
2022 const struct grid_line *grid_peek_line(struct grid *, u_int);
2023 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
2024 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2025 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int);
2026 void	 grid_clear_lines(struct grid *, u_int, u_int);
2027 void	 grid_move_lines(struct grid *, u_int, u_int, u_int);
2028 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
2029 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2030 	     struct grid_cell **, int, int, int);
2031 void	 grid_duplicate_lines(
2032 	     struct grid *, u_int, struct grid *, u_int, u_int);
2033 u_int	 grid_reflow(struct grid *, struct grid *, u_int);
2034 
2035 /* grid-cell.c */
2036 u_int	 grid_cell_width(const struct grid_cell *);
2037 void	 grid_cell_get(const struct grid_cell *, struct utf8_data *);
2038 void	 grid_cell_set(struct grid_cell *, const struct utf8_data *);
2039 void	 grid_cell_one(struct grid_cell *, u_char);
2040 
2041 /* grid-view.c */
2042 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
2043 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
2044 void	 grid_view_set_cell(
2045 	     struct grid *, u_int, u_int, const struct grid_cell *);
2046 void	 grid_view_clear_history(struct grid *);
2047 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
2048 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int);
2049 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int);
2050 void	 grid_view_insert_lines(struct grid *, u_int, u_int);
2051 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
2052 void	 grid_view_delete_lines(struct grid *, u_int, u_int);
2053 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
2054 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
2055 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
2056 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2057 
2058 /* screen-write.c */
2059 void	 screen_write_start(
2060 	     struct screen_write_ctx *, struct window_pane *, struct screen *);
2061 void	 screen_write_stop(struct screen_write_ctx *);
2062 void	 screen_write_reset(struct screen_write_ctx *);
2063 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
2064 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
2065 	     ssize_t, struct grid_cell *, int, const char *, ...);
2066 size_t printflike2 screen_write_strlen(int, const char *, ...);
2067 void printflike3 screen_write_puts(struct screen_write_ctx *,
2068 	     struct grid_cell *, const char *, ...);
2069 void printflike5 screen_write_nputs(struct screen_write_ctx *,
2070 	     ssize_t, struct grid_cell *, int, const char *, ...);
2071 void	 screen_write_vnputs(struct screen_write_ctx *,
2072 	     ssize_t, struct grid_cell *, int, const char *, va_list);
2073 void	 screen_write_putc(
2074 	     struct screen_write_ctx *, struct grid_cell *, u_char);
2075 void	 screen_write_copy(struct screen_write_ctx *,
2076 	     struct screen *, u_int, u_int, u_int, u_int);
2077 void	 screen_write_backspace(struct screen_write_ctx *);
2078 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2079 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2080 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2081 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2082 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2083 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2084 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2085 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int);
2086 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int);
2087 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int);
2088 void	 screen_write_insertline(struct screen_write_ctx *, u_int);
2089 void	 screen_write_deleteline(struct screen_write_ctx *, u_int);
2090 void	 screen_write_clearline(struct screen_write_ctx *);
2091 void	 screen_write_clearendofline(struct screen_write_ctx *);
2092 void	 screen_write_clearstartofline(struct screen_write_ctx *);
2093 void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
2094 void	 screen_write_reverseindex(struct screen_write_ctx *);
2095 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2096 void	 screen_write_linefeed(struct screen_write_ctx *, int);
2097 void	 screen_write_linefeedscreen(struct screen_write_ctx *, int);
2098 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2099 void	 screen_write_clearendofscreen(struct screen_write_ctx *);
2100 void	 screen_write_clearstartofscreen(struct screen_write_ctx *);
2101 void	 screen_write_clearscreen(struct screen_write_ctx *);
2102 void	 screen_write_clearhistory(struct screen_write_ctx *);
2103 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2104 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2105 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2106 
2107 /* screen-redraw.c */
2108 void	 screen_redraw_screen(struct client *, int, int, int);
2109 void	 screen_redraw_pane(struct client *, struct window_pane *);
2110 
2111 /* screen.c */
2112 void	 screen_init(struct screen *, u_int, u_int, u_int);
2113 void	 screen_reinit(struct screen *);
2114 void	 screen_free(struct screen *);
2115 void	 screen_reset_tabs(struct screen *);
2116 void	 screen_set_cursor_style(struct screen *, u_int);
2117 void	 screen_set_cursor_colour(struct screen *, const char *);
2118 void	 screen_set_title(struct screen *, const char *);
2119 void	 screen_resize(struct screen *, u_int, u_int, int);
2120 void	 screen_set_selection(struct screen *,
2121 	     u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
2122 void	 screen_clear_selection(struct screen *);
2123 int	 screen_check_selection(struct screen *, u_int, u_int);
2124 void	 screen_reflow(struct screen *, u_int);
2125 
2126 /* window.c */
2127 extern struct windows windows;
2128 extern struct window_pane_tree all_window_panes;
2129 int		 winlink_cmp(struct winlink *, struct winlink *);
2130 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2131 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2132 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2133 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2134 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2135 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2136 int		 winlink_next_index(struct winlinks *, int);
2137 u_int		 winlink_count(struct winlinks *);
2138 struct winlink	*winlink_add(struct winlinks *, int);
2139 void		 winlink_set_window(struct winlink *, struct window *);
2140 void		 winlink_remove(struct winlinks *, struct winlink *);
2141 struct winlink	*winlink_next(struct winlink *);
2142 struct winlink	*winlink_previous(struct winlink *);
2143 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2144 		     int);
2145 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2146 		     int);
2147 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2148 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2149 int		 window_index(struct window *, u_int *);
2150 struct window	*window_find_by_id(u_int);
2151 struct window	*window_create1(u_int, u_int);
2152 struct window	*window_create(const char *, int, char **, const char *,
2153 		     const char *, int, struct environ *, struct termios *,
2154 		     u_int, u_int, u_int, char **);
2155 void		 window_destroy(struct window *);
2156 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2157 void		 window_set_active_at(struct window *, u_int, u_int);
2158 struct window_pane *window_find_string(struct window *, const char *);
2159 void		 window_set_active_pane(struct window *, struct window_pane *);
2160 struct window_pane *window_add_pane(struct window *, u_int);
2161 void		 window_resize(struct window *, u_int, u_int);
2162 int		 window_zoom(struct window_pane *);
2163 int		 window_unzoom(struct window *);
2164 void		 window_lost_pane(struct window *, struct window_pane *);
2165 void		 window_remove_pane(struct window *, struct window_pane *);
2166 struct window_pane *window_pane_at_index(struct window *, u_int);
2167 struct window_pane *window_pane_next_by_number(struct window *,
2168 		        struct window_pane *, u_int);
2169 struct window_pane *window_pane_previous_by_number(struct window *,
2170 		        struct window_pane *, u_int);
2171 int		 window_pane_index(struct window_pane *, u_int *);
2172 u_int		 window_count_panes(struct window *);
2173 void		 window_destroy_panes(struct window *);
2174 struct window_pane *window_pane_find_by_id(u_int);
2175 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
2176 void		 window_pane_destroy(struct window_pane *);
2177 void		 window_pane_timer_start(struct window_pane *);
2178 int		 window_pane_spawn(struct window_pane *, int, char **,
2179 		     const char *, const char *, int, struct environ *,
2180 		     struct termios *, char **);
2181 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2182 void		 window_pane_alternate_on(struct window_pane *,
2183 		     struct grid_cell *, int);
2184 void		 window_pane_alternate_off(struct window_pane *,
2185 		     struct grid_cell *, int);
2186 int		 window_pane_set_mode(
2187 		     struct window_pane *, const struct window_mode *);
2188 void		 window_pane_reset_mode(struct window_pane *);
2189 void		 window_pane_key(struct window_pane *, struct session *, int);
2190 void		 window_pane_mouse(struct window_pane *,
2191 		     struct session *, struct mouse_event *);
2192 int		 window_pane_visible(struct window_pane *);
2193 char		*window_pane_search(
2194 		     struct window_pane *, const char *, u_int *);
2195 char		*window_printable_flags(struct session *, struct winlink *);
2196 struct window_pane *window_pane_find_up(struct window_pane *);
2197 struct window_pane *window_pane_find_down(struct window_pane *);
2198 struct window_pane *window_pane_find_left(struct window_pane *);
2199 struct window_pane *window_pane_find_right(struct window_pane *);
2200 void		 window_set_name(struct window *, const char *);
2201 void		 window_remove_ref(struct window *);
2202 void		 winlink_clear_flags(struct winlink *);
2203 
2204 /* layout.c */
2205 u_int		 layout_count_cells(struct layout_cell *);
2206 struct layout_cell *layout_create_cell(struct layout_cell *);
2207 void		 layout_free_cell(struct layout_cell *);
2208 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2209 void		 layout_destroy_cell(struct layout_cell *, struct layout_cell **);
2210 void		 layout_set_size(
2211 		     struct layout_cell *, u_int, u_int, u_int, u_int);
2212 void		 layout_make_leaf(
2213 		     struct layout_cell *, struct window_pane *);
2214 void		 layout_make_node(struct layout_cell *, enum layout_type);
2215 void		 layout_fix_offsets(struct layout_cell *);
2216 void		 layout_fix_panes(struct window *, u_int, u_int);
2217 u_int		 layout_resize_check(struct layout_cell *, enum layout_type);
2218 void		 layout_resize_adjust(
2219 		     struct layout_cell *, enum layout_type, int);
2220 void		 layout_init(struct window *, struct window_pane *);
2221 void		 layout_free(struct window *);
2222 void		 layout_resize(struct window *, u_int, u_int);
2223 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2224 		     int);
2225 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2226 		     u_int);
2227 void		 layout_resize_pane_mouse(struct client *);
2228 void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
2229 struct layout_cell *layout_split_pane(
2230 		     struct window_pane *, enum layout_type, int, int);
2231 void		 layout_close_pane(struct window_pane *);
2232 
2233 /* layout-custom.c */
2234 char		*layout_dump(struct window *);
2235 int		 layout_parse(struct window *, const char *);
2236 
2237 /* layout-set.c */
2238 const char	*layout_set_name(u_int);
2239 int		 layout_set_lookup(const char *);
2240 u_int		 layout_set_select(struct window *, u_int);
2241 u_int		 layout_set_next(struct window *);
2242 u_int		 layout_set_previous(struct window *);
2243 void		 layout_set_active_changed(struct window *);
2244 
2245 /* window-clock.c */
2246 extern const struct window_mode window_clock_mode;
2247 extern const char window_clock_table[14][5][5];
2248 
2249 /* window-copy.c */
2250 extern const struct window_mode window_copy_mode;
2251 void		 window_copy_init_from_pane(struct window_pane *);
2252 void		 window_copy_init_for_output(struct window_pane *);
2253 void printflike2 window_copy_add(struct window_pane *, const char *, ...);
2254 void		 window_copy_vadd(struct window_pane *, const char *, va_list);
2255 void		 window_copy_pageup(struct window_pane *);
2256 
2257 /* window-choose.c */
2258 extern const struct window_mode window_choose_mode;
2259 void		 window_choose_add(struct window_pane *,
2260 			 struct window_choose_data *);
2261 void		 window_choose_ready(struct window_pane *,
2262 		     u_int, void (*)(struct window_choose_data *));
2263 struct window_choose_data	*window_choose_data_create (int,
2264 		     struct client *, struct session *);
2265 void	window_choose_data_free(struct window_choose_data *);
2266 void	window_choose_data_run(struct window_choose_data *);
2267 struct window_choose_data	*window_choose_add_window(struct window_pane *,
2268 			struct client *, struct session *, struct winlink *,
2269 			const char *, const char *, u_int);
2270 struct window_choose_data	*window_choose_add_session(struct window_pane *,
2271 			struct client *, struct session *, const char *,
2272 			const char *, u_int);
2273 struct window_choose_data	*window_choose_add_item(struct window_pane *,
2274 			struct client *, struct winlink *, const char *,
2275 			const char *, u_int);
2276 void	window_choose_expand_all(struct window_pane *);
2277 void	window_choose_collapse_all(struct window_pane *);
2278 void	window_choose_set_current(struct window_pane *, u_int);
2279 
2280 /* names.c */
2281 void	 queue_window_name(struct window *);
2282 char	*default_window_name(struct window *);
2283 char	*format_window_name(struct window *);
2284 char	*parse_window_name(const char *);
2285 
2286 /* signal.c */
2287 void	set_signals(void(*)(int, short, void *));
2288 void	clear_signals(int);
2289 
2290 /* control.c */
2291 void	control_callback(struct client *, int, void*);
2292 void printflike2 control_write(struct client *, const char *, ...);
2293 void	control_write_buffer(struct client *, struct evbuffer *);
2294 
2295 /* control-notify.c */
2296 void	control_notify_input(struct client *, struct window_pane *,
2297 	    struct evbuffer *);
2298 void	control_notify_window_layout_changed(struct window *);
2299 void	control_notify_window_unlinked(struct session *, struct window *);
2300 void	control_notify_window_linked(struct session *, struct window *);
2301 void	control_notify_window_renamed(struct window *);
2302 void	control_notify_attached_session_changed(struct client *);
2303 void	control_notify_session_renamed(struct session *);
2304 void	control_notify_session_created(struct session *);
2305 void	control_notify_session_close(struct session *);
2306 
2307 /* session.c */
2308 extern struct sessions sessions;
2309 extern struct sessions dead_sessions;
2310 extern struct session_groups session_groups;
2311 int	session_cmp(struct session *, struct session *);
2312 RB_PROTOTYPE(sessions, session, entry, session_cmp);
2313 int		 session_alive(struct session *);
2314 struct session	*session_find(const char *);
2315 struct session	*session_find_by_id(u_int);
2316 struct session	*session_create(const char *, int, char **, const char *,
2317 		     int, struct environ *, struct termios *, int, u_int,
2318 		     u_int, char **);
2319 void		 session_destroy(struct session *);
2320 int		 session_check_name(const char *);
2321 void		 session_update_activity(struct session *);
2322 struct session	*session_next_session(struct session *);
2323 struct session	*session_previous_session(struct session *);
2324 struct winlink	*session_new(struct session *, const char *, int, char **,
2325 		     const char *, int, int, char **);
2326 struct winlink	*session_attach(struct session *, struct window *, int,
2327 		     char **);
2328 int		 session_detach(struct session *, struct winlink *);
2329 struct winlink	*session_has(struct session *, struct window *);
2330 int		 session_next(struct session *, int);
2331 int		 session_previous(struct session *, int);
2332 int		 session_select(struct session *, int);
2333 int		 session_last(struct session *);
2334 int		 session_set_current(struct session *, struct winlink *);
2335 struct session_group *session_group_find(struct session *);
2336 u_int		 session_group_index(struct session_group *);
2337 void		 session_group_add(struct session *, struct session *);
2338 void		 session_group_remove(struct session *);
2339 void		 session_group_synchronize_to(struct session *);
2340 void		 session_group_synchronize_from(struct session *);
2341 void		 session_group_synchronize1(struct session *, struct session *);
2342 void		 session_renumber_windows(struct session *);
2343 
2344 /* utf8.c */
2345 void		 utf8_build(void);
2346 void		 utf8_set(struct utf8_data *, u_char);
2347 int		 utf8_open(struct utf8_data *, u_char);
2348 int		 utf8_append(struct utf8_data *, u_char);
2349 u_int		 utf8_combine(const struct utf8_data *);
2350 u_int		 utf8_split2(u_int, u_char *);
2351 int		 utf8_strvis(char *, const char *, size_t, int);
2352 struct utf8_data *utf8_fromcstr(const char *);
2353 char		*utf8_tocstr(struct utf8_data *);
2354 u_int		 utf8_cstrwidth(const char *);
2355 char		*utf8_trimcstr(const char *, u_int);
2356 
2357 /* procname.c */
2358 char   *get_proc_name(int, char *);
2359 
2360 /* log.c */
2361 void		 log_open(const char *);
2362 void		 log_close(void);
2363 void printflike1 log_debug(const char *, ...);
2364 __dead void printflike1 log_fatal(const char *, ...);
2365 __dead void printflike1 log_fatalx(const char *, ...);
2366 
2367 /* xmalloc.c */
2368 char		*xstrdup(const char *);
2369 void		*xcalloc(size_t, size_t);
2370 void		*xmalloc(size_t);
2371 void		*xrealloc(void *, size_t, size_t);
2372 int printflike2	 xasprintf(char **, const char *, ...);
2373 int		 xvasprintf(char **, const char *, va_list);
2374 int printflike3	 xsnprintf(char *, size_t, const char *, ...);
2375 int		 xvsnprintf(char *, size_t, const char *, va_list);
2376 
2377 /* style.c */
2378 int		 style_parse(const struct grid_cell *,
2379 		     struct grid_cell *, const char *);
2380 const char	*style_tostring(struct grid_cell *);
2381 void		 style_update_new(struct options *, const char *, const char *);
2382 void		 style_update_old(struct options *, const char *,
2383 		     struct grid_cell *);
2384 void		 style_apply(struct grid_cell *, struct options *,
2385 		     const char *);
2386 void		 style_apply_update(struct grid_cell *, struct options *,
2387 		     const char *);
2388 
2389 #endif /* TMUX_H */
2390