tmux.h

   1 /* $OpenBSD$ */
   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 <event.h>
  32 #include <getopt.h>
  33 #include <limits.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 /* Maximum data to buffer for output before suspending reading from panes. */
  63 #define BACKOFF_THRESHOLD 1024
  64
  65 /*
  66  * Maximum sizes of strings in message data. Don't forget to bump
  67  * PROTOCOL_VERSION if any of these change!
  68  */
  69 #define COMMAND_LENGTH 2048     /* packed argv size */
  70 #define TERMINAL_LENGTH 128     /* length of TERM environment variable */
  71 #define PRINT_LENGTH 512        /* printed error/message size */
  72 #define ENVIRON_LENGTH 1024     /* environment variable length */
  73
  74 /*
  75  * UTF-8 data size. This must be big enough to hold combined characters as well
  76  * as single.
  77  */
  78 #define UTF8_SIZE 9
  79
  80 /* Fatal errors. */
  81 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
  82 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
  83
  84 /* Definition to shut gcc up about unused arguments. */
  85 #define unused __attribute__ ((unused))
  86
  87 /* Attribute to make gcc check printf-like arguments. */
  88 #define printflike1 __attribute__ ((format (printf, 1, 2)))
  89 #define printflike2 __attribute__ ((format (printf, 2, 3)))
  90 #define printflike3 __attribute__ ((format (printf, 3, 4)))
  91 #define printflike4 __attribute__ ((format (printf, 4, 5)))
  92 #define printflike5 __attribute__ ((format (printf, 5, 6)))
  93
  94 /* Number of items in array. */
  95 #ifndef nitems
  96 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
  97 #endif
  98
  99 /* Bell option values. */
 100 #define BELL_NONE 0
 101 #define BELL_ANY 1
 102 #define BELL_CURRENT 2
 103
 104 /* Special key codes. */
 105 #define KEYC_NONE 0xfff
 106 #define KEYC_BASE 0x1000
 107
 108 /* Key modifier bits. */
 109 #define KEYC_ESCAPE 0x2000
 110 #define KEYC_CTRL 0x4000
 111 #define KEYC_SHIFT 0x8000
 112 #define KEYC_PREFIX 0x10000
 113
 114 /* Other key codes. */
 115 enum key_code {
 116         /* Mouse key. */
 117         KEYC_MOUSE = KEYC_BASE,
 118
 119         /* Backspace key. */
 120         KEYC_BSPACE,
 121
 122         /* Function keys. */
 123         KEYC_F1,
 124         KEYC_F2,
 125         KEYC_F3,
 126         KEYC_F4,
 127         KEYC_F5,
 128         KEYC_F6,
 129         KEYC_F7,
 130         KEYC_F8,
 131         KEYC_F9,
 132         KEYC_F10,
 133         KEYC_F11,
 134         KEYC_F12,
 135         KEYC_F13,
 136         KEYC_F14,
 137         KEYC_F15,
 138         KEYC_F16,
 139         KEYC_F17,
 140         KEYC_F18,
 141         KEYC_F19,
 142         KEYC_F20,
 143         KEYC_IC,
 144         KEYC_DC,
 145         KEYC_HOME,
 146         KEYC_END,
 147         KEYC_NPAGE,
 148         KEYC_PPAGE,
 149         KEYC_BTAB,
 150
 151         /* Arrow keys. */
 152         KEYC_UP,
 153         KEYC_DOWN,
 154         KEYC_LEFT,
 155         KEYC_RIGHT,
 156
 157         /* Numeric keypad. */
 158         KEYC_KP_SLASH,
 159         KEYC_KP_STAR,
 160         KEYC_KP_MINUS,
 161         KEYC_KP_SEVEN,
 162         KEYC_KP_EIGHT,
 163         KEYC_KP_NINE,
 164         KEYC_KP_PLUS,
 165         KEYC_KP_FOUR,
 166         KEYC_KP_FIVE,
 167         KEYC_KP_SIX,
 168         KEYC_KP_ONE,
 169         KEYC_KP_TWO,
 170         KEYC_KP_THREE,
 171         KEYC_KP_ENTER,
 172         KEYC_KP_ZERO,
 173         KEYC_KP_PERIOD,
 174 };
 175
 176 /* Termcap codes. */
 177 enum tty_code_code {
 178         TTYC_AX = 0,
 179         TTYC_ACSC,      /* acs_chars, ac */
 180         TTYC_BEL,       /* bell, bl */
 181         TTYC_BLINK,     /* enter_blink_mode, mb */
 182         TTYC_BOLD,      /* enter_bold_mode, md */
 183         TTYC_CIVIS,     /* cursor_invisible, vi */
 184         TTYC_CLEAR,     /* clear_screen, cl */
 185         TTYC_CNORM,     /* cursor_normal, ve */
 186         TTYC_COLORS,    /* max_colors, Co */
 187         TTYC_CSR,       /* change_scroll_region, cs */
 188         TTYC_CUB,       /* parm_left_cursor, LE */
 189         TTYC_CUB1,      /* cursor_left, le */
 190         TTYC_CUD,       /* parm_down_cursor, DO */
 191         TTYC_CUD1,      /* cursor_down, do */
 192         TTYC_CUF,       /* parm_right_cursor, RI */
 193         TTYC_CUF1,      /* cursor_right, nd */
 194         TTYC_CUP,       /* cursor_address, cm */
 195         TTYC_CUU,       /* parm_up_cursor, UP */
 196         TTYC_CUU1,      /* cursor_up, up */
 197         TTYC_DCH,       /* parm_dch, DC */
 198         TTYC_DCH1,      /* delete_character, dc */
 199         TTYC_DIM,       /* enter_dim_mode, mh */
 200         TTYC_DL,        /* parm_delete_line, DL */
 201         TTYC_DL1,       /* delete_line, dl */
 202         TTYC_EL,        /* clr_eol, ce */
 203         TTYC_EL1,       /* clr_bol, cb */
 204         TTYC_ENACS,     /* ena_acs, eA */
 205         TTYC_HOME,      /* cursor_home, ho */
 206         TTYC_HPA,       /* column_address, ch */
 207         TTYC_ICH,       /* parm_ich, IC */
 208         TTYC_ICH1,      /* insert_character, ic */
 209         TTYC_IL,        /* parm_insert_line, IL */
 210         TTYC_IL1,       /* insert_line, il */
 211         TTYC_INVIS,     /* enter_secure_mode, mk */
 212         TTYC_IS1,       /* init_1string, i1 */
 213         TTYC_IS2,       /* init_2string, i2 */
 214         TTYC_IS3,       /* init_3string, i3 */
 215         TTYC_KCBT,      /* key_btab, kB */
 216         TTYC_KCUB1,     /* key_left, kl */
 217         TTYC_KCUD1,     /* key_down, kd */
 218         TTYC_KCUF1,     /* key_right, kr */
 219         TTYC_KCUU1,     /* key_up, ku */
 220         TTYC_KDC2,
 221         TTYC_KDC3,
 222         TTYC_KDC4,
 223         TTYC_KDC5,
 224         TTYC_KDC6,
 225         TTYC_KDC7,
 226         TTYC_KDCH1,     /* key_dc, kD */
 227         TTYC_KDN2,
 228         TTYC_KDN3,
 229         TTYC_KDN4,
 230         TTYC_KDN5,
 231         TTYC_KDN6,
 232         TTYC_KDN7,
 233         TTYC_KEND,      /* key_end, ke */
 234         TTYC_KEND2,
 235         TTYC_KEND3,
 236         TTYC_KEND4,
 237         TTYC_KEND5,
 238         TTYC_KEND6,
 239         TTYC_KEND7,
 240         TTYC_KF1,       /* key_f1, k1 */
 241         TTYC_KF10,      /* key_f10, k; */
 242         TTYC_KF11,      /* key_f11, F1 */
 243         TTYC_KF12,      /* key_f12, F2 */
 244         TTYC_KF13,      /* key_f13, F3 */
 245         TTYC_KF14,      /* key_f14, F4 */
 246         TTYC_KF15,      /* key_f15, F5 */
 247         TTYC_KF16,      /* key_f16, F6 */
 248         TTYC_KF17,      /* key_f17, F7 */
 249         TTYC_KF18,      /* key_f18, F8 */
 250         TTYC_KF19,      /* key_f19, F9 */
 251         TTYC_KF2,       /* key_f2, k2 */
 252         TTYC_KF20,      /* key_f20, F10 */
 253         TTYC_KF3,       /* key_f3, k3 */
 254         TTYC_KF4,       /* key_f4, k4 */
 255         TTYC_KF5,       /* key_f5, k5 */
 256         TTYC_KF6,       /* key_f6, k6 */
 257         TTYC_KF7,       /* key_f7, k7 */
 258         TTYC_KF8,       /* key_f8, k8 */
 259         TTYC_KF9,       /* key_f9, k9 */
 260         TTYC_KHOM2,
 261         TTYC_KHOM3,
 262         TTYC_KHOM4,
 263         TTYC_KHOM5,
 264         TTYC_KHOM6,
 265         TTYC_KHOM7,
 266         TTYC_KHOME,     /* key_home, kh */
 267         TTYC_KIC2,
 268         TTYC_KIC3,
 269         TTYC_KIC4,
 270         TTYC_KIC5,
 271         TTYC_KIC6,
 272         TTYC_KIC7,
 273         TTYC_KICH1,     /* key_ic, kI */
 274         TTYC_KLFT2,
 275         TTYC_KLFT3,
 276         TTYC_KLFT4,
 277         TTYC_KLFT5,
 278         TTYC_KLFT6,
 279         TTYC_KLFT7,
 280         TTYC_KMOUS,     /* key_mouse, Km */
 281         TTYC_KNP,       /* key_npage, kN */
 282         TTYC_KNXT2,
 283         TTYC_KNXT3,
 284         TTYC_KNXT4,
 285         TTYC_KNXT5,
 286         TTYC_KNXT6,
 287         TTYC_KNXT7,
 288         TTYC_KPP,       /* key_ppage, kP */
 289         TTYC_KPRV2,
 290         TTYC_KPRV3,
 291         TTYC_KPRV4,
 292         TTYC_KPRV5,
 293         TTYC_KPRV6,
 294         TTYC_KPRV7,
 295         TTYC_KRIT2,
 296         TTYC_KRIT3,
 297         TTYC_KRIT4,
 298         TTYC_KRIT5,
 299         TTYC_KRIT6,
 300         TTYC_KRIT7,
 301         TTYC_KUP2,
 302         TTYC_KUP3,
 303         TTYC_KUP4,
 304         TTYC_KUP5,
 305         TTYC_KUP6,
 306         TTYC_KUP7,
 307         TTYC_OP,        /* orig_pair, op */
 308         TTYC_REV,       /* enter_reverse_mode, mr */
 309         TTYC_RI,        /* scroll_reverse, sr */
 310         TTYC_RMACS,     /* exit_alt_charset_mode */
 311         TTYC_RMCUP,     /* exit_ca_mode, te */
 312         TTYC_RMIR,      /* exit_insert_mode, ei */
 313         TTYC_RMKX,      /* keypad_local, ke */
 314         TTYC_SETAB,     /* set_a_background, AB */
 315         TTYC_SETAF,     /* set_a_foreground, AF */
 316         TTYC_SGR0,      /* exit_attribute_mode, me */
 317         TTYC_SMACS,     /* enter_alt_charset_mode, as */
 318         TTYC_SMCUP,     /* enter_ca_mode, ti */
 319         TTYC_SMIR,      /* enter_insert_mode, im */
 320         TTYC_SMKX,      /* keypad_xmit, ks */
 321         TTYC_SMSO,      /* enter_standout_mode, so */
 322         TTYC_SMUL,      /* enter_underline_mode, us */
 323         TTYC_VPA,       /* row_address, cv */
 324         TTYC_XENL,      /* eat_newline_glitch, xn */
 325 };
 326 #define NTTYCODE (TTYC_XENL + 1)
 327
 328 /* Termcap types. */
 329 enum tty_code_type {
 330         TTYCODE_NONE = 0,
 331         TTYCODE_STRING,
 332         TTYCODE_NUMBER,
 333         TTYCODE_FLAG,
 334 };
 335
 336 /* Termcap code. */
 337 struct tty_code {
 338         enum tty_code_type      type;
 339         union {
 340                 char           *string;
 341                 int             number;
 342                 int             flag;
 343         } value;
 344 };
 345
 346 /* Entry in terminal code table. */
 347 struct tty_term_code_entry {
 348         enum tty_code_code      code;
 349         enum tty_code_type      type;
 350         const char             *name;
 351 };
 352
 353 /* Message codes. */
 354 enum msgtype {
 355         MSG_COMMAND,
 356         MSG_DETACH,
 357         MSG_ERROR,
 358         MSG_EXIT,
 359         MSG_EXITED,
 360         MSG_EXITING,
 361         MSG_IDENTIFY,
 362         MSG_PRINT,
 363         MSG_READY,
 364         MSG_RESIZE,
 365         MSG_SHUTDOWN,
 366         MSG_SUSPEND,
 367         MSG_VERSION,
 368         MSG_WAKEUP,
 369         MSG_ENVIRON,
 370         MSG_UNLOCK,
 371         MSG_LOCK,
 372         MSG_SHELL
 373 };
 374
 375 /*
 376  * Message data.
 377  *
 378  * Don't forget to bump PROTOCOL_VERSION if any of these change!
 379  */
 380 struct msg_print_data {
 381         char            msg[PRINT_LENGTH];
 382 };
 383
 384 struct msg_command_data {
 385         pid_t           pid;                    /* pid from $TMUX or -1 */
 386         u_int           idx;                    /* index from $TMUX */
 387
 388         int             argc;
 389         char            argv[COMMAND_LENGTH];
 390 };
 391
 392 struct msg_identify_data {
 393         char            cwd[MAXPATHLEN];
 394
 395         char            term[TERMINAL_LENGTH];
 396
 397 #define IDENTIFY_UTF8 0x1
 398 #define IDENTIFY_256COLOURS 0x2
 399 #define IDENTIFY_88COLOURS 0x4
 400         int             flags;
 401 };
 402
 403 struct msg_lock_data {
 404         char            cmd[COMMAND_LENGTH];
 405 };
 406
 407 struct msg_environ_data {
 408         char            var[ENVIRON_LENGTH];
 409 };
 410
 411 struct msg_shell_data {
 412         char            shell[MAXPATHLEN];
 413 };
 414
 415 /* Mode key commands. */
 416 enum mode_key_cmd {
 417         MODEKEY_NONE,
 418         MODEKEY_OTHER,
 419
 420         /* Editing keys. */
 421         MODEKEYEDIT_BACKSPACE,
 422         MODEKEYEDIT_CANCEL,
 423         MODEKEYEDIT_COMPLETE,
 424         MODEKEYEDIT_CURSORLEFT,
 425         MODEKEYEDIT_CURSORRIGHT,
 426         MODEKEYEDIT_DELETE,
 427         MODEKEYEDIT_DELETELINE,
 428         MODEKEYEDIT_DELETETOENDOFLINE,
 429         MODEKEYEDIT_ENDOFLINE,
 430         MODEKEYEDIT_ENTER,
 431         MODEKEYEDIT_HISTORYDOWN,
 432         MODEKEYEDIT_HISTORYUP,
 433         MODEKEYEDIT_PASTE,
 434         MODEKEYEDIT_STARTOFLINE,
 435         MODEKEYEDIT_SWITCHMODE,
 436         MODEKEYEDIT_SWITCHMODEAPPEND,
 437         MODEKEYEDIT_TRANSPOSECHARS,
 438
 439         /* Menu (choice) keys. */
 440         MODEKEYCHOICE_CANCEL,
 441         MODEKEYCHOICE_CHOOSE,
 442         MODEKEYCHOICE_DOWN,
 443         MODEKEYCHOICE_PAGEDOWN,
 444         MODEKEYCHOICE_PAGEUP,
 445         MODEKEYCHOICE_SCROLLDOWN,
 446         MODEKEYCHOICE_SCROLLUP,
 447         MODEKEYCHOICE_UP,
 448
 449         /* Copy keys. */
 450         MODEKEYCOPY_BACKTOINDENTATION,
 451         MODEKEYCOPY_BOTTOMLINE,
 452         MODEKEYCOPY_CANCEL,
 453         MODEKEYCOPY_CLEARSELECTION,
 454         MODEKEYCOPY_COPYSELECTION,
 455         MODEKEYCOPY_DOWN,
 456         MODEKEYCOPY_ENDOFLINE,
 457         MODEKEYCOPY_GOTOLINE,
 458         MODEKEYCOPY_HALFPAGEDOWN,
 459         MODEKEYCOPY_HALFPAGEUP,
 460         MODEKEYCOPY_HISTORYBOTTOM,
 461         MODEKEYCOPY_HISTORYTOP,
 462         MODEKEYCOPY_JUMP,
 463         MODEKEYCOPY_JUMPAGAIN,
 464         MODEKEYCOPY_JUMPREVERSE,
 465         MODEKEYCOPY_JUMPBACK,
 466         MODEKEYCOPY_LEFT,
 467         MODEKEYCOPY_MIDDLELINE,
 468         MODEKEYCOPY_NEXTPAGE,
 469         MODEKEYCOPY_NEXTSPACE,
 470         MODEKEYCOPY_NEXTSPACEEND,
 471         MODEKEYCOPY_NEXTWORD,
 472         MODEKEYCOPY_NEXTWORDEND,
 473         MODEKEYCOPY_PREVIOUSPAGE,
 474         MODEKEYCOPY_PREVIOUSSPACE,
 475         MODEKEYCOPY_PREVIOUSWORD,
 476         MODEKEYCOPY_RECTANGLETOGGLE,
 477         MODEKEYCOPY_RIGHT,
 478         MODEKEYCOPY_SCROLLDOWN,
 479         MODEKEYCOPY_SCROLLUP,
 480         MODEKEYCOPY_SEARCHAGAIN,
 481         MODEKEYCOPY_SEARCHDOWN,
 482         MODEKEYCOPY_SEARCHREVERSE,
 483         MODEKEYCOPY_SEARCHUP,
 484         MODEKEYCOPY_STARTNUMBERPREFIX,
 485         MODEKEYCOPY_STARTOFLINE,
 486         MODEKEYCOPY_STARTSELECTION,
 487         MODEKEYCOPY_TOPLINE,
 488         MODEKEYCOPY_UP,
 489 };
 490
 491 /* Entry in the default mode key tables. */
 492 struct mode_key_entry {
 493         int                     key;
 494
 495         /*
 496          * Editing mode for vi: 0 is edit mode, keys not in the table are
 497          * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
 498          * are returned as MODEKEY_NONE. This is also matched on, allowing some
 499          * keys to be bound in edit mode.
 500          */
 501         int                     mode;
 502         enum mode_key_cmd       cmd;
 503 };
 504
 505 /* Data required while mode keys are in use. */
 506 struct mode_key_data {
 507         struct mode_key_tree   *tree;
 508         int                     mode;
 509 };
 510 #define MODEKEY_EMACS 0
 511 #define MODEKEY_VI 1
 512
 513 /* Binding between a key and a command. */
 514 struct mode_key_binding {
 515         int                     key;
 516
 517         int                     mode;
 518         enum mode_key_cmd       cmd;
 519
 520         SPLAY_ENTRY(mode_key_binding) entry;
 521 };
 522 SPLAY_HEAD(mode_key_tree, mode_key_binding);
 523
 524 /* Command to string mapping. */
 525 struct mode_key_cmdstr {
 526         enum mode_key_cmd        cmd;
 527         const char              *name;
 528 };
 529
 530 /* Named mode key table description. */
 531 struct mode_key_table {
 532         const char              *name;
 533         struct mode_key_cmdstr  *cmdstr;
 534         struct mode_key_tree    *tree;
 535         const struct mode_key_entry *table;     /* default entries */
 536 };
 537
 538 /* Modes. */
 539 #define MODE_CURSOR 0x1
 540 #define MODE_INSERT 0x2
 541 #define MODE_KCURSOR 0x4
 542 #define MODE_KKEYPAD 0x8        /* set = application, clear = number */
 543 #define MODE_MOUSE 0x10
 544 #define MODE_WRAP 0x20          /* whether lines wrap */
 545
 546 /*
 547  * A single UTF-8 character.
 548  *
 549  * The data member in this must be UTF8_SIZE to allow screen_write_copy to
 550  * reinject stored UTF-8 data back into screen_write_cell after combining (ugh
 551  * XXX XXX).
 552  */
 553 struct utf8_data {
 554         u_char  data[UTF8_SIZE];
 555
 556         size_t  have;
 557         size_t  size;
 558
 559         u_int   width;
 560 };
 561
 562 /* Grid output. */
 563 #if defined(DEBUG) && \
 564     ((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
 565      (defined(__GNUC__) && __GNUC__ >= 3))
 566 #define GRID_DEBUG(gd, fmt, ...) log_debug2("%s: (sx=%u, sy=%u, hsize=%u) " \
 567     fmt, __func__, (gd)->sx, (gd)->sy, (gd)->hsize, ## __VA_ARGS__)
 568 #else
 569 #define GRID_DEBUG(...)
 570 #endif
 571
 572 /* Grid attributes. */
 573 #define GRID_ATTR_BRIGHT 0x1
 574 #define GRID_ATTR_DIM 0x2
 575 #define GRID_ATTR_UNDERSCORE 0x4
 576 #define GRID_ATTR_BLINK 0x8
 577 #define GRID_ATTR_REVERSE 0x10
 578 #define GRID_ATTR_HIDDEN 0x20
 579 #define GRID_ATTR_ITALICS 0x40
 580 #define GRID_ATTR_CHARSET 0x80  /* alternative character set */
 581
 582 /* Grid flags. */
 583 #define GRID_FLAG_FG256 0x1
 584 #define GRID_FLAG_BG256 0x2
 585 #define GRID_FLAG_PADDING 0x4
 586 #define GRID_FLAG_UTF8 0x8
 587
 588 /* Grid line flags. */
 589 #define GRID_LINE_WRAPPED 0x1
 590
 591 /* Grid cell data. */
 592 struct grid_cell {
 593         u_char  attr;
 594         u_char  flags;
 595         u_char  fg;
 596         u_char  bg;
 597         u_char  data;
 598 } __packed;
 599
 600 /* Grid cell UTF-8 data. Used instead of data in grid_cell for UTF-8 cells. */
 601 struct grid_utf8 {
 602         u_char  width;
 603         u_char  data[UTF8_SIZE];
 604 } __packed;
 605
 606 /* Grid line. */
 607 struct grid_line {
 608         u_int   cellsize;
 609         struct grid_cell *celldata;
 610
 611         u_int   utf8size;
 612         struct grid_utf8 *utf8data;
 613
 614         int     flags;
 615 } __packed;
 616
 617 /* Entire grid of cells. */
 618 struct grid {
 619         int     flags;
 620 #define GRID_HISTORY 0x1        /* scroll lines into history */
 621
 622         u_int   sx;
 623         u_int   sy;
 624
 625         u_int   hsize;
 626         u_int   hlimit;
 627
 628         struct grid_line *linedata;
 629 };
 630
 631 /* Option data structures. */
 632 struct options_entry {
 633         char            *name;
 634
 635         enum {
 636                 OPTIONS_STRING,
 637                 OPTIONS_NUMBER,
 638                 OPTIONS_DATA,
 639         } type;
 640
 641         char            *str;
 642         long long        num;
 643         void            *data;
 644
 645         void             (*freefn)(void *);
 646
 647         SPLAY_ENTRY(options_entry) entry;
 648 };
 649
 650 struct options {
 651         SPLAY_HEAD(options_tree, options_entry) tree;
 652         struct options  *parent;
 653 };
 654
 655 /* Key list for prefix option. */
 656 ARRAY_DECL(keylist, int);
 657
 658 /* Scheduled job. */
 659 struct job {
 660         char            *cmd;
 661         pid_t            pid;
 662         int              status;
 663
 664         struct client   *client;
 665
 666         int              fd;
 667         struct bufferevent *event;
 668
 669         void            (*callbackfn)(struct job *);
 670         void            (*freefn)(void *);
 671         void            *data;
 672
 673         int              flags;
 674 #define JOB_PERSIST 0x1 /* don't free after callback */
 675
 676         RB_ENTRY(job)    entry;
 677         SLIST_ENTRY(job) lentry;
 678 };
 679 RB_HEAD(jobs, job);
 680 SLIST_HEAD(joblist, job);
 681
 682 /* Screen selection. */
 683 struct screen_sel {
 684         int              flag;
 685         int              rectflag;
 686
 687         u_int            sx;
 688         u_int            sy;
 689
 690         u_int            ex;
 691         u_int            ey;
 692
 693         struct grid_cell cell;
 694 };
 695
 696 /* Virtual screen. */
 697 struct screen {
 698         char            *title;
 699
 700         struct grid     *grid;          /* grid data */
 701
 702         u_int            cx;            /* cursor x */
 703         u_int            cy;            /* cursor y */
 704
 705         u_int            rupper;        /* scroll region top */
 706         u_int            rlower;        /* scroll region bottom */
 707
 708         int              mode;
 709
 710         bitstr_t        *tabs;
 711
 712         struct screen_sel sel;
 713 };
 714
 715 /* Screen write context. */
 716 struct screen_write_ctx {
 717         struct window_pane *wp;
 718         struct screen   *s;
 719 };
 720
 721 /* Screen size. */
 722 #define screen_size_x(s) ((s)->grid->sx)
 723 #define screen_size_y(s) ((s)->grid->sy)
 724 #define screen_hsize(s) ((s)->grid->hsize)
 725 #define screen_hlimit(s) ((s)->grid->hlimit)
 726
 727 /* Input parser context. */
 728 struct input_ctx {
 729         struct window_pane     *wp;
 730         struct screen_write_ctx ctx;
 731
 732         struct grid_cell        cell;
 733
 734         struct grid_cell        old_cell;
 735         u_int                   old_cx;
 736         u_int                   old_cy;
 737
 738         u_char                  interm_buf[4];
 739         size_t                  interm_len;
 740
 741         u_char                  param_buf[64];
 742         size_t                  param_len;
 743
 744         u_char                  input_buf[256];
 745         size_t                  input_len;
 746
 747         int                     param_list[24]; /* -1 not present */
 748         u_int                   param_list_len;
 749
 750         struct utf8_data        utf8data;
 751
 752         int                     ch;
 753         int                     flags;
 754 #define INPUT_DISCARD 0x1
 755
 756         const struct input_state *state;
 757 };
 758
 759 /*
 760  * Window mode. Windows can be in several modes and this is used to call the
 761  * right function to handle input and output.
 762  */
 763 struct client;
 764 struct window;
 765 struct mouse_event;
 766 struct window_mode {
 767         struct screen *(*init)(struct window_pane *);
 768         void    (*free)(struct window_pane *);
 769         void    (*resize)(struct window_pane *, u_int, u_int);
 770         void    (*key)(struct window_pane *, struct client *, int);
 771         void    (*mouse)(struct window_pane *,
 772                     struct client *, struct mouse_event *);
 773         void    (*timer)(struct window_pane *);
 774 };
 775
 776 /* Child window structure. */
 777 struct window_pane {
 778         struct window   *window;
 779         struct layout_cell *layout_cell;
 780
 781         u_int            sx;
 782         u_int            sy;
 783
 784         u_int            xoff;
 785         u_int            yoff;
 786
 787         int              flags;
 788 #define PANE_REDRAW 0x1
 789 #define PANE_FREEZE 0x2
 790
 791         char            *cmd;
 792         char            *shell;
 793         char            *cwd;
 794
 795         pid_t            pid;
 796         char             tty[TTY_NAME_MAX];
 797
 798         int              fd;
 799         struct bufferevent *event;
 800
 801         struct input_ctx ictx;
 802
 803         int              pipe_fd;
 804         struct bufferevent *pipe_event;
 805         size_t           pipe_off;
 806
 807         struct screen   *screen;
 808         struct screen    base;
 809
 810         /* Saved in alternative screen mode. */
 811         u_int            saved_cx;
 812         u_int            saved_cy;
 813         struct grid     *saved_grid;
 814         struct grid_cell saved_cell;
 815
 816         const struct window_mode *mode;
 817         void            *modedata;
 818
 819         TAILQ_ENTRY(window_pane) entry;
 820 };
 821 TAILQ_HEAD(window_panes, window_pane);
 822
 823 /* Window structure. */
 824 struct window {
 825         char            *name;
 826         struct event     name_timer;
 827
 828         struct window_pane *active;
 829         struct window_panes panes;
 830
 831         int              lastlayout;
 832         struct layout_cell *layout_root;
 833
 834         u_int            sx;
 835         u_int            sy;
 836
 837         int              flags;
 838 #define WINDOW_BELL 0x1
 839 #define WINDOW_HIDDEN 0x2
 840 #define WINDOW_ACTIVITY 0x4
 841 #define WINDOW_CONTENT 0x8
 842 #define WINDOW_REDRAW 0x10
 843
 844         struct options   options;
 845
 846         u_int            references;
 847 };
 848 ARRAY_DECL(windows, struct window *);
 849
 850 /* Entry on local window list. */
 851 struct winlink {
 852         int              idx;
 853         struct window   *window;
 854
 855         size_t           status_width;
 856         struct grid_cell status_cell;
 857         char            *status_text;
 858
 859         RB_ENTRY(winlink) entry;
 860         TAILQ_ENTRY(winlink) sentry;
 861 };
 862 RB_HEAD(winlinks, winlink);
 863 TAILQ_HEAD(winlink_stack, winlink);
 864
 865 /* Layout direction. */
 866 enum layout_type {
 867         LAYOUT_LEFTRIGHT,
 868         LAYOUT_TOPBOTTOM,
 869         LAYOUT_WINDOWPANE
 870 };
 871
 872 /* Layout cells queue. */
 873 TAILQ_HEAD(layout_cells, layout_cell);
 874
 875 /* Layout cell. */
 876 struct layout_cell {
 877         enum layout_type type;
 878
 879         struct layout_cell *parent;
 880
 881         u_int            sx;
 882         u_int            sy;
 883
 884         u_int            xoff;
 885         u_int            yoff;
 886
 887         struct window_pane *wp;
 888         struct layout_cells cells;
 889
 890         TAILQ_ENTRY(layout_cell) entry;
 891 };
 892
 893 /* Paste buffer. */
 894 struct paste_buffer {
 895         char            *data;
 896         size_t           size;
 897 };
 898 ARRAY_DECL(paste_stack, struct paste_buffer *);
 899
 900 /* Environment variable. */
 901 struct environ_entry {
 902         char            *name;
 903         char            *value;
 904
 905         RB_ENTRY(environ_entry) entry;
 906 };
 907 RB_HEAD(environ, environ_entry);
 908
 909 /* Client session. */
 910 struct session_alert {
 911         struct winlink  *wl;
 912         int              type;
 913
 914         SLIST_ENTRY(session_alert) entry;
 915 };
 916
 917 struct session_group {
 918         TAILQ_HEAD(, session) sessions;
 919
 920         TAILQ_ENTRY(session_group) entry;
 921 };
 922 TAILQ_HEAD(session_groups, session_group);
 923
 924 struct session {
 925         char            *name;
 926
 927         struct timeval   creation_time;
 928         struct timeval   activity_time;
 929
 930         u_int            sx;
 931         u_int            sy;
 932
 933         struct winlink  *curw;
 934         struct winlink_stack lastw;
 935         struct winlinks  windows;
 936
 937         struct options   options;
 938
 939         struct paste_stack buffers;
 940
 941         SLIST_HEAD(, session_alert) alerts;
 942
 943 #define SESSION_UNATTACHED 0x1  /* not attached to any clients */
 944 #define SESSION_DEAD 0x2
 945         int              flags;
 946
 947         struct termios  *tio;
 948
 949         struct environ   environ;
 950
 951         int              references;
 952
 953         TAILQ_ENTRY(session) gentry;
 954 };
 955 ARRAY_DECL(sessions, struct session *);
 956
 957 /* TTY information. */
 958 struct tty_key {
 959         char             ch;
 960         int              key;
 961
 962         struct tty_key  *left;
 963         struct tty_key  *right;
 964
 965         struct tty_key  *next;
 966 };
 967
 968 struct tty_term {
 969         char            *name;
 970         u_int            references;
 971
 972         struct tty_code  codes[NTTYCODE];
 973
 974 #define TERM_256COLOURS 0x1
 975 #define TERM_88COLOURS 0x2
 976 #define TERM_EARLYWRAP 0x4
 977         int              flags;
 978
 979         SLIST_ENTRY(tty_term) entry;
 980 };
 981 SLIST_HEAD(tty_terms, tty_term);
 982
 983 struct tty {
 984         char            *path;
 985
 986         u_int            sx;
 987         u_int            sy;
 988
 989         u_int            cx;
 990         u_int            cy;
 991
 992         int              mode;
 993
 994         u_int            rlower;
 995         u_int            rupper;
 996
 997         char            *termname;
 998         struct tty_term *term;
 999
1000         int              fd;
1001         struct bufferevent *event;
1002
1003         int              log_fd;
1004
1005         struct termios   tio;
1006
1007         struct grid_cell cell;
1008
1009         u_char           acs[UCHAR_MAX + 1];
1010
1011 #define TTY_NOCURSOR 0x1
1012 #define TTY_FREEZE 0x2
1013 #define TTY_ESCAPE 0x4
1014 #define TTY_UTF8 0x8
1015 #define TTY_STARTED 0x10
1016 #define TTY_OPENED 0x20
1017         int              flags;
1018
1019         int              term_flags;
1020
1021         void             (*key_callback)(int, struct mouse_event *, void *);
1022         void            *key_data;
1023         struct event     key_timer;
1024         struct tty_key  *key_tree;
1025 };
1026
1027 /* TTY command context and function pointer. */
1028 struct tty_ctx {
1029         struct window_pane *wp;
1030
1031         const struct grid_cell *cell;
1032         const struct grid_utf8 *utf8;
1033
1034         u_int            num;
1035         void            *ptr;
1036
1037         /*
1038          * Cursor and region position before the screen was updated - this is
1039          * where the command should be applied; the values in the screen have
1040          * already been updated.
1041          */
1042         u_int            ocx;
1043         u_int            ocy;
1044
1045         u_int            orupper;
1046         u_int            orlower;
1047
1048         /* Saved last cell on line. */
1049         struct grid_cell last_cell;
1050         struct grid_utf8 last_utf8;
1051         u_int            last_width;
1052 };
1053
1054 /* Mouse input. */
1055 struct mouse_event {
1056         u_char  b;
1057         u_char  x;
1058         u_char  y;
1059 };
1060
1061 /* Saved message entry. */
1062 struct message_entry {
1063         char   *msg;
1064         time_t  msg_time;
1065 };
1066
1067 /* Client connection. */
1068 struct client {
1069         struct imsgbuf   ibuf;
1070         struct event     event;
1071
1072         struct timeval   creation_time;
1073         struct timeval   activity_time;
1074
1075         struct environ   environ;
1076
1077         char            *title;
1078         char            *cwd;
1079
1080         struct tty       tty;
1081         struct event     repeat_timer;
1082
1083         struct timeval   status_timer;
1084         struct jobs      status_jobs;
1085         struct screen    status;
1086
1087 #define CLIENT_TERMINAL 0x1
1088 #define CLIENT_PREFIX 0x2
1089 #define CLIENT_MOUSE 0x4
1090 #define CLIENT_REDRAW 0x8
1091 #define CLIENT_STATUS 0x10
1092 #define CLIENT_REPEAT 0x20      /* allow command to repeat within repeat time */
1093 #define CLIENT_SUSPENDED 0x40
1094 #define CLIENT_BAD 0x80
1095 #define CLIENT_IDENTIFY 0x100
1096 #define CLIENT_DEAD 0x200
1097 #define CLIENT_BORDERS 0x400
1098 #define CLIENT_READONLY 0x800
1099         int              flags;
1100
1101         struct event     identify_timer;
1102
1103         char            *message_string;
1104         struct event     message_timer;
1105         ARRAY_DECL(, struct message_entry) message_log;
1106
1107         char            *prompt_string;
1108         char            *prompt_buffer;
1109         size_t           prompt_index;
1110         int              (*prompt_callbackfn)(void *, const char *);
1111         void             (*prompt_freefn)(void *);
1112         void            *prompt_data;
1113
1114 #define PROMPT_SINGLE 0x1
1115         int              prompt_flags;
1116
1117         u_int            prompt_hindex;
1118         ARRAY_DECL(, char *) prompt_hdata;
1119
1120         struct mode_key_data prompt_mdata;
1121
1122         struct session  *session;
1123
1124         int              references;
1125 };
1126 ARRAY_DECL(clients, struct client *);
1127
1128 /* Key/command line command. */
1129 struct cmd_ctx {
1130         /*
1131          * curclient is the client where this command was executed if inside
1132          * tmux. This is NULL if the command came from the command-line.
1133          *
1134          * cmdclient is the client which sent the MSG_COMMAND to the server, if
1135          * any. This is NULL unless the command came from the command-line.
1136          *
1137          * cmdclient and curclient may both be NULL if the command is in the
1138          * configuration file.
1139          */
1140         struct client  *curclient;
1141         struct client  *cmdclient;
1142
1143         struct msg_command_data *msgdata;
1144
1145         /* gcc2 doesn't understand attributes on function pointers... */
1146 #if defined(__GNUC__) && __GNUC__ >= 3
1147         void printflike2 (*print)(struct cmd_ctx *, const char *, ...);
1148         void printflike2 (*info)(struct cmd_ctx *, const char *, ...);
1149         void printflike2 (*error)(struct cmd_ctx *, const char *, ...);
1150 #else
1151         void (*print)(struct cmd_ctx *, const char *, ...);
1152         void (*info)(struct cmd_ctx *, const char *, ...);
1153         void (*error)(struct cmd_ctx *, const char *, ...);
1154 #endif
1155 };
1156
1157 struct cmd {
1158         const struct cmd_entry *entry;
1159         void            *data;
1160
1161         TAILQ_ENTRY(cmd) qentry;
1162 };
1163 TAILQ_HEAD(cmd_list, cmd);
1164
1165 struct cmd_entry {
1166         const char      *name;
1167         const char      *alias;
1168         const char      *usage;
1169
1170 #define CMD_STARTSERVER 0x1
1171 #define CMD_CANTNEST 0x2
1172 #define CMD_SENDENVIRON 0x4
1173 #define CMD_ARG1 0x8
1174 #define CMD_ARG01 0x10
1175 #define CMD_ARG2 0x20
1176 #define CMD_ARG12 0x40
1177 #define CMD_READONLY 0x80
1178         int              flags;
1179
1180         const char      *chflags;
1181
1182         void             (*init)(struct cmd *, int);
1183         int              (*parse)(struct cmd *, int, char **, char **);
1184         int              (*exec)(struct cmd *, struct cmd_ctx *);
1185         void             (*free)(struct cmd *);
1186         size_t           (*print)(struct cmd *, char *, size_t);
1187 };
1188
1189 /* Generic command data. */
1190 struct cmd_target_data {
1191         uint64_t chflags;
1192
1193         char    *target;
1194
1195         char    *arg;
1196         char    *arg2;
1197 };
1198
1199 struct cmd_srcdst_data {
1200         uint64_t chflags;
1201
1202         char    *src;
1203         char    *dst;
1204
1205         char    *arg;
1206         char    *arg2;
1207 };
1208
1209 struct cmd_buffer_data {
1210         uint64_t chflags;
1211
1212         char    *target;
1213         int      buffer;
1214
1215         char    *arg;
1216         char    *arg2;
1217 };
1218
1219 /* Key binding. */
1220 struct key_binding {
1221         int              key;
1222         struct cmd_list *cmdlist;
1223         int              can_repeat;
1224
1225         SPLAY_ENTRY(key_binding) entry;
1226 };
1227 SPLAY_HEAD(key_bindings, key_binding);
1228
1229 /* Set/display option data. */
1230 struct set_option_entry {
1231         const char      *name;
1232         enum {
1233                 SET_OPTION_STRING,
1234                 SET_OPTION_NUMBER,
1235                 SET_OPTION_KEYS,
1236                 SET_OPTION_COLOUR,
1237                 SET_OPTION_ATTRIBUTES,
1238                 SET_OPTION_FLAG,
1239                 SET_OPTION_CHOICE
1240         } type;
1241
1242         u_int            minimum;
1243         u_int            maximum;
1244
1245         const char     **choices;
1246 };
1247
1248 /* List of configuration causes. */
1249 ARRAY_DECL(causelist, char *);
1250
1251 /* tmux.c */
1252 extern struct options global_options;
1253 extern struct options global_s_options;
1254 extern struct options global_w_options;
1255 extern struct environ global_environ;
1256 extern char     *cfg_file;
1257 extern int       debug_level;
1258 extern int       be_quiet;
1259 extern time_t    start_time;
1260 extern char     *socket_path;
1261 extern int       login_shell;
1262 void             logfile(const char *);
1263 const char      *getshell(void);
1264 int              checkshell(const char *);
1265 int              areshell(const char *);
1266
1267 /* cfg.c */
1268 extern int       cfg_finished;
1269 struct causelist cfg_causes;
1270 void printflike2 cfg_add_cause(struct causelist *, const char *, ...);
1271 int              load_cfg(const char *, struct cmd_ctx *, struct causelist *);
1272
1273 /* mode-key.c */
1274 extern const struct mode_key_table mode_key_tables[];
1275 extern struct mode_key_tree mode_key_tree_vi_edit;
1276 extern struct mode_key_tree mode_key_tree_vi_choice;
1277 extern struct mode_key_tree mode_key_tree_vi_copy;
1278 extern struct mode_key_tree mode_key_tree_emacs_edit;
1279 extern struct mode_key_tree mode_key_tree_emacs_choice;
1280 extern struct mode_key_tree mode_key_tree_emacs_copy;
1281 int     mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1282 SPLAY_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1283 const char *mode_key_tostring(struct mode_key_cmdstr *r, enum mode_key_cmd);
1284 enum mode_key_cmd mode_key_fromstring(struct mode_key_cmdstr *, const char *);
1285 const struct mode_key_table *mode_key_findtable(const char *);
1286 void    mode_key_init_trees(void);
1287 void    mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1288 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int);
1289
1290 /* options.c */
1291 int     options_cmp(struct options_entry *, struct options_entry *);
1292 SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1293 void    options_init(struct options *, struct options *);
1294 void    options_free(struct options *);
1295 struct options_entry *options_find1(struct options *, const char *);
1296 struct options_entry *options_find(struct options *, const char *);
1297 void    options_remove(struct options *, const char *);
1298 struct options_entry *printflike3 options_set_string(
1299             struct options *, const char *, const char *, ...);
1300 char   *options_get_string(struct options *, const char *);
1301 struct options_entry *options_set_number(
1302             struct options *, const char *, long long);
1303 long long options_get_number(struct options *, const char *);
1304 struct options_entry *options_set_data(
1305             struct options *, const char *, void *, void (*)(void *));
1306 void   *options_get_data(struct options *, const char *);
1307
1308 /* job.c */
1309 extern struct joblist all_jobs;
1310 int     job_cmp(struct job *, struct job *);
1311 RB_PROTOTYPE(jobs, job, entry, job_cmp);
1312 void    job_tree_init(struct jobs *);
1313 void    job_tree_free(struct jobs *);
1314 struct job *job_get(struct jobs *, const char *);
1315 struct job *job_add(struct jobs *, int, struct client *,
1316             const char *, void (*)(struct job *), void (*)(void *), void *);
1317 void    job_remove(struct jobs *, struct job *);
1318 void    job_free(struct job *);
1319 int     job_run(struct job *);
1320 void    job_died(struct job *, int);
1321 void    job_kill(struct job *);
1322
1323 /* environ.c */
1324 int     environ_cmp(struct environ_entry *, struct environ_entry *);
1325 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1326 void    environ_init(struct environ *);
1327 void    environ_free(struct environ *);
1328 void    environ_copy(struct environ *, struct environ *);
1329 struct environ_entry *environ_find(struct environ *, const char *);
1330 void    environ_set(struct environ *, const char *, const char *);
1331 void    environ_put(struct environ *, const char *);
1332 void    environ_unset(struct environ *, const char *);
1333 void    environ_update(const char *, struct environ *, struct environ *);
1334 void    environ_push(struct environ *);
1335
1336 /* tty.c */
1337 void    tty_raw(struct tty *, const char *);
1338 u_char  tty_get_acs(struct tty *, u_char);
1339 void    tty_attributes(struct tty *, const struct grid_cell *);
1340 void    tty_reset(struct tty *);
1341 void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1342 void    tty_region(struct tty *, u_int, u_int);
1343 void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1344 void    tty_cursor(struct tty *, u_int, u_int);
1345 void    tty_putcode(struct tty *, enum tty_code_code);
1346 void    tty_putcode1(struct tty *, enum tty_code_code, int);
1347 void    tty_putcode2(struct tty *, enum tty_code_code, int, int);
1348 void    tty_puts(struct tty *, const char *);
1349 void    tty_putc(struct tty *, u_char);
1350 void    tty_pututf8(struct tty *, const struct grid_utf8 *);
1351 void    tty_init(struct tty *, int, char *);
1352 void    tty_resize(struct tty *);
1353 void    tty_start_tty(struct tty *);
1354 void    tty_stop_tty(struct tty *);
1355 void    tty_set_title(struct tty *, const char *);
1356 void    tty_update_mode(struct tty *, int);
1357 void    tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1358 int     tty_open(struct tty *, const char *, char **);
1359 void    tty_close(struct tty *);
1360 void    tty_free(struct tty *);
1361 void    tty_write(void (*)(
1362             struct tty *, const struct tty_ctx *), const struct tty_ctx *);
1363 void    tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1364 void    tty_cmd_cell(struct tty *, const struct tty_ctx *);
1365 void    tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1366 void    tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1367 void    tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1368 void    tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1369 void    tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1370 void    tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1371 void    tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1372 void    tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1373 void    tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1374 void    tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1375 void    tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1376 void    tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1377 void    tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1378
1379 /* tty-term.c */
1380 extern struct tty_terms tty_terms;
1381 extern struct tty_term_code_entry tty_term_codes[NTTYCODE];
1382 struct tty_term *tty_term_find(char *, int, const char *, char **);
1383 void             tty_term_free(struct tty_term *);
1384 int              tty_term_has(struct tty_term *, enum tty_code_code);
1385 const char      *tty_term_string(struct tty_term *, enum tty_code_code);
1386 const char      *tty_term_string1(struct tty_term *, enum tty_code_code, int);
1387 const char      *tty_term_string2(
1388                      struct tty_term *, enum tty_code_code, int, int);
1389 int              tty_term_number(struct tty_term *, enum tty_code_code);
1390 int              tty_term_flag(struct tty_term *, enum tty_code_code);
1391
1392 /* tty-keys.c */
1393 void    tty_keys_init(struct tty *);
1394 void    tty_keys_free(struct tty *);
1395 int     tty_keys_next(struct tty *);
1396
1397 /* paste.c */
1398 void             paste_init_stack(struct paste_stack *);
1399 void             paste_free_stack(struct paste_stack *);
1400 struct paste_buffer *paste_walk_stack(struct paste_stack *, uint *);
1401 struct paste_buffer *paste_get_top(struct paste_stack *);
1402 struct paste_buffer *paste_get_index(struct paste_stack *, u_int);
1403 int              paste_free_top(struct paste_stack *);
1404 int              paste_free_index(struct paste_stack *, u_int);
1405 void             paste_add(struct paste_stack *, char *, size_t, u_int);
1406 int              paste_replace(struct paste_stack *, u_int, char *, size_t);
1407
1408 /* clock.c */
1409 extern const char clock_table[14][5][5];
1410 void             clock_draw(struct screen_write_ctx *, int, int);
1411
1412 /* cmd-set-option.c */
1413 extern const struct set_option_entry set_option_table[];
1414 extern const struct set_option_entry set_session_option_table[];
1415 extern const struct set_option_entry set_window_option_table[];
1416 const char      *cmd_set_option_print(
1417                     const struct set_option_entry *, struct options_entry *);
1418
1419 /* cmd.c */
1420 int              cmd_pack_argv(int, char **, char *, size_t);
1421 int              cmd_unpack_argv(char *, size_t, int, char ***);
1422 void             cmd_free_argv(int, char **);
1423 struct cmd      *cmd_parse(int, char **, char **);
1424 int              cmd_exec(struct cmd *, struct cmd_ctx *);
1425 void             cmd_free(struct cmd *);
1426 size_t           cmd_print(struct cmd *, char *, size_t);
1427 struct session  *cmd_current_session(struct cmd_ctx *);
1428 struct client   *cmd_current_client(struct cmd_ctx *);
1429 struct client   *cmd_find_client(struct cmd_ctx *, const char *);
1430 struct session  *cmd_find_session(struct cmd_ctx *, const char *);
1431 struct winlink  *cmd_find_window(
1432                      struct cmd_ctx *, const char *, struct session **);
1433 int              cmd_find_index(
1434                      struct cmd_ctx *, const char *, struct session **);
1435 struct winlink  *cmd_find_pane(struct cmd_ctx *,
1436                      const char *, struct session **, struct window_pane **);
1437 char            *cmd_template_replace(char *, const char *, int);
1438 extern const struct cmd_entry *cmd_table[];
1439 extern const struct cmd_entry cmd_attach_session_entry;
1440 extern const struct cmd_entry cmd_bind_key_entry;
1441 extern const struct cmd_entry cmd_break_pane_entry;
1442 extern const struct cmd_entry cmd_capture_pane_entry;
1443 extern const struct cmd_entry cmd_choose_client_entry;
1444 extern const struct cmd_entry cmd_choose_session_entry;
1445 extern const struct cmd_entry cmd_choose_window_entry;
1446 extern const struct cmd_entry cmd_clear_history_entry;
1447 extern const struct cmd_entry cmd_clock_mode_entry;
1448 extern const struct cmd_entry cmd_command_prompt_entry;
1449 extern const struct cmd_entry cmd_confirm_before_entry;
1450 extern const struct cmd_entry cmd_copy_buffer_entry;
1451 extern const struct cmd_entry cmd_copy_mode_entry;
1452 extern const struct cmd_entry cmd_delete_buffer_entry;
1453 extern const struct cmd_entry cmd_detach_client_entry;
1454 extern const struct cmd_entry cmd_display_message_entry;
1455 extern const struct cmd_entry cmd_display_panes_entry;
1456 extern const struct cmd_entry cmd_down_pane_entry;
1457 extern const struct cmd_entry cmd_find_window_entry;
1458 extern const struct cmd_entry cmd_has_session_entry;
1459 extern const struct cmd_entry cmd_if_shell_entry;
1460 extern const struct cmd_entry cmd_join_pane_entry;
1461 extern const struct cmd_entry cmd_kill_pane_entry;
1462 extern const struct cmd_entry cmd_kill_server_entry;
1463 extern const struct cmd_entry cmd_kill_session_entry;
1464 extern const struct cmd_entry cmd_kill_window_entry;
1465 extern const struct cmd_entry cmd_last_window_entry;
1466 extern const struct cmd_entry cmd_link_window_entry;
1467 extern const struct cmd_entry cmd_list_buffers_entry;
1468 extern const struct cmd_entry cmd_list_clients_entry;
1469 extern const struct cmd_entry cmd_list_commands_entry;
1470 extern const struct cmd_entry cmd_list_keys_entry;
1471 extern const struct cmd_entry cmd_list_panes_entry;
1472 extern const struct cmd_entry cmd_list_sessions_entry;
1473 extern const struct cmd_entry cmd_list_windows_entry;
1474 extern const struct cmd_entry cmd_load_buffer_entry;
1475 extern const struct cmd_entry cmd_lock_client_entry;
1476 extern const struct cmd_entry cmd_lock_server_entry;
1477 extern const struct cmd_entry cmd_lock_session_entry;
1478 extern const struct cmd_entry cmd_move_window_entry;
1479 extern const struct cmd_entry cmd_new_session_entry;
1480 extern const struct cmd_entry cmd_new_window_entry;
1481 extern const struct cmd_entry cmd_next_layout_entry;
1482 extern const struct cmd_entry cmd_next_window_entry;
1483 extern const struct cmd_entry cmd_paste_buffer_entry;
1484 extern const struct cmd_entry cmd_pipe_pane_entry;
1485 extern const struct cmd_entry cmd_previous_layout_entry;
1486 extern const struct cmd_entry cmd_previous_window_entry;
1487 extern const struct cmd_entry cmd_refresh_client_entry;
1488 extern const struct cmd_entry cmd_rename_session_entry;
1489 extern const struct cmd_entry cmd_rename_window_entry;
1490 extern const struct cmd_entry cmd_resize_pane_entry;
1491 extern const struct cmd_entry cmd_respawn_window_entry;
1492 extern const struct cmd_entry cmd_rotate_window_entry;
1493 extern const struct cmd_entry cmd_run_shell_entry;
1494 extern const struct cmd_entry cmd_save_buffer_entry;
1495 extern const struct cmd_entry cmd_select_layout_entry;
1496 extern const struct cmd_entry cmd_select_pane_entry;
1497 extern const struct cmd_entry cmd_select_prompt_entry;
1498 extern const struct cmd_entry cmd_select_window_entry;
1499 extern const struct cmd_entry cmd_send_keys_entry;
1500 extern const struct cmd_entry cmd_send_prefix_entry;
1501 extern const struct cmd_entry cmd_server_info_entry;
1502 extern const struct cmd_entry cmd_set_buffer_entry;
1503 extern const struct cmd_entry cmd_set_environment_entry;
1504 extern const struct cmd_entry cmd_set_option_entry;
1505 extern const struct cmd_entry cmd_set_window_option_entry;
1506 extern const struct cmd_entry cmd_show_buffer_entry;
1507 extern const struct cmd_entry cmd_show_environment_entry;
1508 extern const struct cmd_entry cmd_show_messages_entry;
1509 extern const struct cmd_entry cmd_show_options_entry;
1510 extern const struct cmd_entry cmd_show_window_options_entry;
1511 extern const struct cmd_entry cmd_source_file_entry;
1512 extern const struct cmd_entry cmd_split_window_entry;
1513 extern const struct cmd_entry cmd_start_server_entry;
1514 extern const struct cmd_entry cmd_suspend_client_entry;
1515 extern const struct cmd_entry cmd_swap_pane_entry;
1516 extern const struct cmd_entry cmd_swap_window_entry;
1517 extern const struct cmd_entry cmd_switch_client_entry;
1518 extern const struct cmd_entry cmd_unbind_key_entry;
1519 extern const struct cmd_entry cmd_unlink_window_entry;
1520 extern const struct cmd_entry cmd_up_pane_entry;
1521
1522 /* cmd-list.c */
1523 struct cmd_list *cmd_list_parse(int, char **, char **);
1524 int              cmd_list_exec(struct cmd_list *, struct cmd_ctx *);
1525 void             cmd_list_free(struct cmd_list *);
1526 size_t           cmd_list_print(struct cmd_list *, char *, size_t);
1527
1528 /* cmd-string.c */
1529 int     cmd_string_parse(const char *, struct cmd_list **, char **);
1530
1531 /* cmd-generic.c */
1532 size_t  cmd_prarg(char *, size_t, const char *, char *);
1533 int     cmd_check_flag(uint64_t, int);
1534 void    cmd_set_flag(uint64_t *, int);
1535 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1536 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1537 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1538 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1539 void    cmd_target_init(struct cmd *, int);
1540 int     cmd_target_parse(struct cmd *, int, char **, char **);
1541 void    cmd_target_free(struct cmd *);
1542 size_t  cmd_target_print(struct cmd *, char *, size_t);
1543 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1544 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1545 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1546 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1547 void    cmd_srcdst_init(struct cmd *, int);
1548 int     cmd_srcdst_parse(struct cmd *, int, char **, char **);
1549 void    cmd_srcdst_free(struct cmd *);
1550 size_t  cmd_srcdst_print(struct cmd *, char *, size_t);
1551 #define CMD_BUFFER_PANE_USAGE "[-b buffer-index] [-t target-pane]"
1552 #define CMD_BUFFER_WINDOW_USAGE "[-b buffer-index] [-t target-window]"
1553 #define CMD_BUFFER_SESSION_USAGE "[-b buffer-index] [-t target-session]"
1554 #define CMD_BUFFER_CLIENT_USAGE "[-b buffer-index] [-t target-client]"
1555 void    cmd_buffer_init(struct cmd *, int);
1556 int     cmd_buffer_parse(struct cmd *, int, char **, char **);
1557 void    cmd_buffer_free(struct cmd *);
1558 size_t  cmd_buffer_print(struct cmd *, char *, size_t);
1559
1560 /* client.c */
1561 struct imsgbuf *client_init(char *, int, int);
1562 __dead void     client_main(void);
1563
1564 /* key-bindings.c */
1565 extern struct key_bindings key_bindings;
1566 int      key_bindings_cmp(struct key_binding *, struct key_binding *);
1567 SPLAY_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1568 struct key_binding *key_bindings_lookup(int);
1569 void     key_bindings_add(int, int, struct cmd_list *);
1570 void     key_bindings_remove(int);
1571 void     key_bindings_clean(void);
1572 void     key_bindings_init(void);
1573 void     key_bindings_dispatch(struct key_binding *, struct client *);
1574 void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
1575 void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
1576 void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
1577
1578 /* key-string.c */
1579 int      key_string_lookup_string(const char *);
1580 const char *key_string_lookup_key(int);
1581
1582 /* server.c */
1583 extern struct clients clients;
1584 extern struct clients dead_clients;
1585 int      server_start(char *);
1586 void     server_signal_set(void);
1587 void     server_signal_clear(void);
1588 void     server_update_socket(void);
1589
1590 /* server-client.c */
1591 void     server_client_create(int);
1592 void     server_client_lost(struct client *);
1593 void     server_client_callback(int, short, void *);
1594 void     server_client_status_timer(void);
1595 void     server_client_loop(void);
1596
1597 /* server-window.c */
1598 void     server_window_loop(void);
1599
1600 /* server-fn.c */
1601 void     server_fill_environ(struct session *, struct environ *);
1602 void     server_write_client(
1603              struct client *, enum msgtype, const void *, size_t);
1604 void     server_write_session(
1605              struct session *, enum msgtype, const void *, size_t);
1606 void     server_redraw_client(struct client *);
1607 void     server_status_client(struct client *);
1608 void     server_redraw_session(struct session *);
1609 void     server_redraw_session_group(struct session *);
1610 void     server_status_session(struct session *);
1611 void     server_status_session_group(struct session *);
1612 void     server_redraw_window(struct window *);
1613 void     server_redraw_window_borders(struct window *);
1614 void     server_status_window(struct window *);
1615 void     server_lock(void);
1616 void     server_lock_session(struct session *);
1617 void     server_lock_client(struct client *);
1618 int      server_unlock(const char *);
1619 void     server_kill_window(struct window *);
1620 int      server_link_window(struct session *,
1621              struct winlink *, struct session *, int, int, int, char **);
1622 void     server_unlink_window(struct session *, struct winlink *);
1623 void     server_destroy_pane(struct window_pane *);
1624 void     server_destroy_session_group(struct session *);
1625 void     server_destroy_session(struct session *);
1626 void     server_set_identify(struct client *);
1627 void     server_clear_identify(struct client *);
1628 void     server_update_event(struct client *);
1629
1630 /* status.c */
1631 int      status_redraw(struct client *);
1632 char    *status_replace(
1633              struct client *, struct winlink *, const char *, time_t, int);
1634 void printflike2 status_message_set(struct client *, const char *, ...);
1635 void     status_message_clear(struct client *);
1636 int      status_message_redraw(struct client *);
1637 void     status_prompt_set(struct client *, const char *,
1638              int (*)(void *, const char *), void (*)(void *), void *, int);
1639 void     status_prompt_clear(struct client *);
1640 int      status_prompt_redraw(struct client *);
1641 void     status_prompt_key(struct client *, int);
1642 void     status_prompt_update(struct client *, const char *);
1643
1644 /* resize.c */
1645 void     recalculate_sizes(void);
1646
1647 /* input.c */
1648 void     input_init(struct window_pane *);
1649 void     input_free(struct window_pane *);
1650 void     input_parse(struct window_pane *);
1651
1652 /* input-key.c */
1653 void     input_key(struct window_pane *, int);
1654 void     input_mouse(struct window_pane *, struct mouse_event *);
1655
1656 /* xterm-keys.c */
1657 char    *xterm_keys_lookup(int);
1658 int      xterm_keys_find(const char *, size_t, size_t *, int *);
1659
1660 /* colour.c */
1661 void     colour_set_fg(struct grid_cell *, int);
1662 void     colour_set_bg(struct grid_cell *, int);
1663 const char *colour_tostring(int);
1664 int      colour_fromstring(const char *);
1665 u_char   colour_256to16(u_char);
1666 u_char   colour_256to88(u_char);
1667
1668 /* attributes.c */
1669 const char *attributes_tostring(u_char);
1670 int      attributes_fromstring(const char *);
1671
1672 /* grid.c */
1673 extern const struct grid_cell grid_default_cell;
1674 struct grid *grid_create(u_int, u_int, u_int);
1675 void     grid_destroy(struct grid *);
1676 int      grid_compare(struct grid *, struct grid *);
1677 void     grid_collect_history(struct grid *);
1678 void     grid_scroll_history(struct grid *);
1679 void     grid_scroll_history_region(struct grid *, u_int, u_int);
1680 void     grid_expand_line(struct grid *, u_int, u_int);
1681 void     grid_expand_line_utf8(struct grid *, u_int, u_int);
1682 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
1683 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
1684 void     grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
1685 const struct grid_utf8 *grid_peek_utf8(struct grid *, u_int, u_int);
1686 struct grid_utf8 *grid_get_utf8(struct grid *, u_int, u_int);
1687 void     grid_set_utf8(struct grid *, u_int, u_int, const struct grid_utf8 *);
1688 void     grid_clear(struct grid *, u_int, u_int, u_int, u_int);
1689 void     grid_clear_lines(struct grid *, u_int, u_int);
1690 void     grid_move_lines(struct grid *, u_int, u_int, u_int);
1691 void     grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
1692 char    *grid_string_cells(struct grid *, u_int, u_int, u_int);
1693 void     grid_duplicate_lines(
1694              struct grid *, u_int, struct grid *, u_int, u_int);
1695
1696 /* grid-utf8.c */
1697 size_t   grid_utf8_size(const struct grid_utf8 *);
1698 size_t   grid_utf8_copy(const struct grid_utf8 *, char *, size_t);
1699 void     grid_utf8_set(struct grid_utf8 *, const struct utf8_data *);
1700 int      grid_utf8_append(struct grid_utf8 *, const struct utf8_data *);
1701 int      grid_utf8_compare(const struct grid_utf8 *, const struct grid_utf8 *);
1702
1703 /* grid-view.c */
1704 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
1705 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
1706 void     grid_view_set_cell(
1707              struct grid *, u_int, u_int, const struct grid_cell *);
1708 const struct grid_utf8 *grid_view_peek_utf8(struct grid *, u_int, u_int);
1709 struct grid_utf8 *grid_view_get_utf8(struct grid *, u_int, u_int);
1710 void     grid_view_set_utf8(
1711              struct grid *, u_int, u_int, const struct grid_utf8 *);
1712 void     grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
1713 void     grid_view_scroll_region_up(struct grid *, u_int, u_int);
1714 void     grid_view_scroll_region_down(struct grid *, u_int, u_int);
1715 void     grid_view_insert_lines(struct grid *, u_int, u_int);
1716 void     grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
1717 void     grid_view_delete_lines(struct grid *, u_int, u_int);
1718 void     grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
1719 void     grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
1720 void     grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
1721 char    *grid_view_string_cells(struct grid *, u_int, u_int, u_int);
1722
1723 /* screen-write.c */
1724 void     screen_write_start(
1725              struct screen_write_ctx *, struct window_pane *, struct screen *);
1726 void     screen_write_stop(struct screen_write_ctx *);
1727 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
1728 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
1729              ssize_t, struct grid_cell *, int, const char *, ...);
1730 size_t printflike2 screen_write_strlen(int, const char *, ...);
1731 void printflike3 screen_write_puts(struct screen_write_ctx *,
1732              struct grid_cell *, const char *, ...);
1733 void printflike5 screen_write_nputs(struct screen_write_ctx *,
1734              ssize_t, struct grid_cell *, int, const char *, ...);
1735 void     screen_write_vnputs(struct screen_write_ctx *,
1736              ssize_t, struct grid_cell *, int, const char *, va_list);
1737 void     screen_write_parsestyle(
1738              struct grid_cell *, struct grid_cell *, const char *);
1739 void     screen_write_putc(
1740              struct screen_write_ctx *, struct grid_cell *, u_char);
1741 void     screen_write_copy(struct screen_write_ctx *,
1742              struct screen *, u_int, u_int, u_int, u_int);
1743 void     screen_write_backspace(struct screen_write_ctx *);
1744 void     screen_write_cursorup(struct screen_write_ctx *, u_int);
1745 void     screen_write_cursordown(struct screen_write_ctx *, u_int);
1746 void     screen_write_cursorright(struct screen_write_ctx *, u_int);
1747 void     screen_write_cursorleft(struct screen_write_ctx *, u_int);
1748 void     screen_write_alignmenttest(struct screen_write_ctx *);
1749 void     screen_write_insertcharacter(struct screen_write_ctx *, u_int);
1750 void     screen_write_deletecharacter(struct screen_write_ctx *, u_int);
1751 void     screen_write_insertline(struct screen_write_ctx *, u_int);
1752 void     screen_write_deleteline(struct screen_write_ctx *, u_int);
1753 void     screen_write_clearline(struct screen_write_ctx *);
1754 void     screen_write_clearendofline(struct screen_write_ctx *);
1755 void     screen_write_clearstartofline(struct screen_write_ctx *);
1756 void     screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
1757 void     screen_write_cursormode(struct screen_write_ctx *, int);
1758 void     screen_write_reverseindex(struct screen_write_ctx *);
1759 void     screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
1760 void     screen_write_insertmode(struct screen_write_ctx *, int);
1761 void     screen_write_mousemode(struct screen_write_ctx *, int);
1762 void     screen_write_linefeed(struct screen_write_ctx *, int);
1763 void     screen_write_linefeedscreen(struct screen_write_ctx *, int);
1764 void     screen_write_carriagereturn(struct screen_write_ctx *);
1765 void     screen_write_kcursormode(struct screen_write_ctx *, int);
1766 void     screen_write_kkeypadmode(struct screen_write_ctx *, int);
1767 void     screen_write_clearendofscreen(struct screen_write_ctx *);
1768 void     screen_write_clearstartofscreen(struct screen_write_ctx *);
1769 void     screen_write_clearscreen(struct screen_write_ctx *);
1770 void     screen_write_cell(struct screen_write_ctx *,
1771              const struct grid_cell *, const struct utf8_data *);
1772
1773 /* screen-redraw.c */
1774 void     screen_redraw_screen(struct client *, int, int);
1775 void     screen_redraw_pane(struct client *, struct window_pane *);
1776
1777 /* screen.c */
1778 void     screen_init(struct screen *, u_int, u_int, u_int);
1779 void     screen_reinit(struct screen *);
1780 void     screen_free(struct screen *);
1781 void     screen_reset_tabs(struct screen *);
1782 void     screen_set_title(struct screen *, const char *);
1783 void     screen_resize(struct screen *, u_int, u_int);
1784 void     screen_set_selection(struct screen *,
1785              u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
1786 void     screen_clear_selection(struct screen *);
1787 int      screen_check_selection(struct screen *, u_int, u_int);
1788
1789 /* window.c */
1790 extern struct windows windows;
1791 int              window_cmp(struct window *, struct window *);
1792 int              winlink_cmp(struct winlink *, struct winlink *);
1793 RB_PROTOTYPE(windows, window, entry, window_cmp);
1794 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
1795 struct winlink  *winlink_find_by_index(struct winlinks *, int);
1796 struct winlink  *winlink_find_by_window(struct winlinks *, struct window *);
1797 int              winlink_next_index(struct winlinks *, int);
1798 u_int            winlink_count(struct winlinks *);
1799 struct winlink  *winlink_add(struct winlinks *, struct window *, int);
1800 void             winlink_remove(struct winlinks *, struct winlink *);
1801 struct winlink  *winlink_next(struct winlink *);
1802 struct winlink  *winlink_previous(struct winlink *);
1803 void             winlink_stack_push(struct winlink_stack *, struct winlink *);
1804 void             winlink_stack_remove(struct winlink_stack *, struct winlink *);
1805 int              window_index(struct window *, u_int *);
1806 struct window   *window_create1(u_int, u_int);
1807 struct window   *window_create(const char *, const char *, const char *,
1808                      const char *, struct environ *, struct termios *,
1809                      u_int, u_int, u_int, char **);
1810 void             window_destroy(struct window *);
1811 void             window_set_active_at(struct window *, u_int, u_int);
1812 void             window_set_active_pane(struct window *, struct window_pane *);
1813 struct window_pane *window_add_pane(struct window *, u_int);
1814 void             window_resize(struct window *, u_int, u_int);
1815 void             window_remove_pane(struct window *, struct window_pane *);
1816 struct window_pane *window_pane_at_index(struct window *, u_int);
1817 u_int            window_pane_index(struct window *, struct window_pane *);
1818 u_int            window_count_panes(struct window *);
1819 void             window_destroy_panes(struct window *);
1820 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
1821 void             window_pane_destroy(struct window_pane *);
1822 int              window_pane_spawn(struct window_pane *, const char *,
1823                      const char *, const char *, struct environ *,
1824                      struct termios *, char **);
1825 void             window_pane_resize(struct window_pane *, u_int, u_int);
1826 void             window_pane_alternate_on(
1827                      struct window_pane *, struct grid_cell *);
1828 void             window_pane_alternate_off(
1829                      struct window_pane *, struct grid_cell *);
1830 int              window_pane_set_mode(
1831                      struct window_pane *, const struct window_mode *);
1832 void             window_pane_reset_mode(struct window_pane *);
1833 void             window_pane_key(struct window_pane *, struct client *, int);
1834 void             window_pane_mouse(struct window_pane *,
1835                      struct client *, struct mouse_event *);
1836 int              window_pane_visible(struct window_pane *);
1837 char            *window_pane_search(
1838                      struct window_pane *, const char *, u_int *);
1839 struct window_pane *window_pane_find_up(struct window_pane *);
1840 struct window_pane *window_pane_find_down(struct window_pane *);
1841 struct window_pane *window_pane_find_left(struct window_pane *);
1842 struct window_pane *window_pane_find_right(struct window_pane *);
1843
1844 /* layout.c */
1845 struct layout_cell *layout_create_cell(struct layout_cell *);
1846 void             layout_free_cell(struct layout_cell *);
1847 void             layout_print_cell(struct layout_cell *, const char *, u_int);
1848 void             layout_set_size(
1849                      struct layout_cell *, u_int, u_int, u_int, u_int);
1850 void             layout_make_leaf(
1851                      struct layout_cell *, struct window_pane *);
1852 void             layout_make_node(struct layout_cell *, enum layout_type);
1853 void             layout_fix_offsets(struct layout_cell *);
1854 void             layout_fix_panes(struct window *, u_int, u_int);
1855 u_int            layout_resize_check(struct layout_cell *, enum layout_type);
1856 void             layout_resize_adjust(
1857                      struct layout_cell *, enum layout_type, int);
1858 void             layout_init(struct window *);
1859 void             layout_free(struct window *);
1860 void             layout_resize(struct window *, u_int, u_int);
1861 void             layout_resize_pane(
1862                      struct window_pane *, enum layout_type, int);
1863 void             layout_assign_pane(struct layout_cell *, struct window_pane *);
1864 struct layout_cell *layout_split_pane(
1865                      struct window_pane *, enum layout_type, int);
1866 void             layout_close_pane(struct window_pane *);
1867
1868 /* layout-set.c */
1869 const char      *layout_set_name(u_int);
1870 int              layout_set_lookup(const char *);
1871 u_int            layout_set_select(struct window *, u_int);
1872 u_int            layout_set_next(struct window *);
1873 u_int            layout_set_previous(struct window *);
1874 void             layout_set_active_changed(struct window *);
1875
1876 /* layout-string.c */
1877 struct layout_cell *layout_find_string(struct window *, const char *);
1878
1879 /* window-clock.c */
1880 extern const struct window_mode window_clock_mode;
1881
1882 /* window-copy.c */
1883 extern const struct window_mode window_copy_mode;
1884 void             window_copy_init_from_pane(struct window_pane *);
1885 void             window_copy_init_for_output(struct window_pane *);
1886 void             window_copy_add(struct window_pane *, const char *, ...);
1887 void             window_copy_vadd(struct window_pane *, const char *, va_list);
1888 void             window_copy_pageup(struct window_pane *);
1889
1890 /* window-choose.c */
1891 extern const struct window_mode window_choose_mode;
1892 void             window_choose_vadd(
1893                      struct window_pane *, int, const char *, va_list);
1894 void printflike3 window_choose_add(
1895                      struct window_pane *, int, const char *, ...);
1896 void             window_choose_ready(struct window_pane *,
1897                      u_int, void (*)(void *, int), void (*)(void *), void *);
1898
1899 /* names.c */
1900 void             queue_window_name(struct window *);
1901 char            *default_window_name(struct window *);
1902
1903 /* session.c */
1904 extern struct sessions sessions;
1905 extern struct sessions dead_sessions;
1906 extern struct session_groups session_groups;
1907 void     session_alert_add(struct session *, struct window *, int);
1908 void     session_alert_cancel(struct session *, struct winlink *);
1909 int      session_alert_has(struct session *, struct winlink *, int);
1910 int      session_alert_has_window(struct session *, struct window *, int);
1911 struct session  *session_find(const char *);
1912 struct session  *session_create(const char *, const char *, const char *,
1913                      struct environ *, struct termios *, int, u_int, u_int,
1914                      char **);
1915 void             session_destroy(struct session *);
1916 int              session_index(struct session *, u_int *);
1917 struct winlink  *session_new(struct session *,
1918                      const char *, const char *, const char *, int, char **);
1919 struct winlink  *session_attach(
1920                      struct session *, struct window *, int, char **);
1921 int              session_detach(struct session *, struct winlink *);
1922 int              session_has(struct session *, struct window *);
1923 int              session_next(struct session *, int);
1924 int              session_previous(struct session *, int);
1925 int              session_select(struct session *, int);
1926 int              session_last(struct session *);
1927 struct session_group *session_group_find(struct session *);
1928 u_int            session_group_index(struct session_group *);
1929 void             session_group_add(struct session *, struct session *);
1930 void             session_group_remove(struct session *);
1931 void             session_group_synchronize_to(struct session *);
1932 void             session_group_synchronize_from(struct session *);
1933 void             session_group_synchronize1(struct session *, struct session *);
1934
1935 /* utf8.c */
1936 void    utf8_build(void);
1937 int     utf8_open(struct utf8_data *, u_char);
1938 int     utf8_append(struct utf8_data *, u_char);
1939
1940 /* procname.c */
1941 char   *get_proc_name(int, char *);
1942
1943 /* log.c */
1944 void             log_open_tty(int);
1945 void             log_open_file(int, const char *);
1946 void             log_close(void);
1947 void printflike1 log_warn(const char *, ...);
1948 void printflike1 log_warnx(const char *, ...);
1949 void printflike1 log_info(const char *, ...);
1950 void printflike1 log_debug(const char *, ...);
1951 void printflike1 log_debug2(const char *, ...);
1952 __dead void printflike1 log_fatal(const char *, ...);
1953 __dead void printflike1 log_fatalx(const char *, ...);
1954
1955 /* xmalloc.c */
1956 char            *xstrdup(const char *);
1957 void            *xcalloc(size_t, size_t);
1958 void            *xmalloc(size_t);
1959 void            *xrealloc(void *, size_t, size_t);
1960 void             xfree(void *);
1961 int printflike2  xasprintf(char **, const char *, ...);
1962 int              xvasprintf(char **, const char *, va_list);
1963 int printflike3  xsnprintf(char *, size_t, const char *, ...);
1964 int              xvsnprintf(char *, size_t, const char *, va_list);
1965
1966 #endif /* TMUX_H */