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 <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 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 /* Mask to obtain key w/o modifiers */
 115 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_PREFIX)
 116 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
 117
 118 /* Other key codes. */
 119 enum key_code {
 120         /* Mouse key. */
 121         KEYC_MOUSE = KEYC_BASE,
 122
 123         /* Backspace key. */
 124         KEYC_BSPACE,
 125
 126         /* Function keys. */
 127         KEYC_F1,
 128         KEYC_F2,
 129         KEYC_F3,
 130         KEYC_F4,
 131         KEYC_F5,
 132         KEYC_F6,
 133         KEYC_F7,
 134         KEYC_F8,
 135         KEYC_F9,
 136         KEYC_F10,
 137         KEYC_F11,
 138         KEYC_F12,
 139         KEYC_F13,
 140         KEYC_F14,
 141         KEYC_F15,
 142         KEYC_F16,
 143         KEYC_F17,
 144         KEYC_F18,
 145         KEYC_F19,
 146         KEYC_F20,
 147         KEYC_IC,
 148         KEYC_DC,
 149         KEYC_HOME,
 150         KEYC_END,
 151         KEYC_NPAGE,
 152         KEYC_PPAGE,
 153         KEYC_BTAB,
 154
 155         /* Arrow keys. */
 156         KEYC_UP,
 157         KEYC_DOWN,
 158         KEYC_LEFT,
 159         KEYC_RIGHT,
 160
 161         /* Numeric keypad. */
 162         KEYC_KP_SLASH,
 163         KEYC_KP_STAR,
 164         KEYC_KP_MINUS,
 165         KEYC_KP_SEVEN,
 166         KEYC_KP_EIGHT,
 167         KEYC_KP_NINE,
 168         KEYC_KP_PLUS,
 169         KEYC_KP_FOUR,
 170         KEYC_KP_FIVE,
 171         KEYC_KP_SIX,
 172         KEYC_KP_ONE,
 173         KEYC_KP_TWO,
 174         KEYC_KP_THREE,
 175         KEYC_KP_ENTER,
 176         KEYC_KP_ZERO,
 177         KEYC_KP_PERIOD,
 178 };
 179
 180 /* Termcap codes. */
 181 enum tty_code_code {
 182         TTYC_AX = 0,
 183         TTYC_ACSC,      /* acs_chars, ac */
 184         TTYC_BEL,       /* bell, bl */
 185         TTYC_BLINK,     /* enter_blink_mode, mb */
 186         TTYC_BOLD,      /* enter_bold_mode, md */
 187         TTYC_CIVIS,     /* cursor_invisible, vi */
 188         TTYC_CLEAR,     /* clear_screen, cl */
 189         TTYC_CNORM,     /* cursor_normal, ve */
 190         TTYC_COLORS,    /* max_colors, Co */
 191         TTYC_CSR,       /* change_scroll_region, cs */
 192         TTYC_CUB,       /* parm_left_cursor, LE */
 193         TTYC_CUB1,      /* cursor_left, le */
 194         TTYC_CUD,       /* parm_down_cursor, DO */
 195         TTYC_CUD1,      /* cursor_down, do */
 196         TTYC_CUF,       /* parm_right_cursor, RI */
 197         TTYC_CUF1,      /* cursor_right, nd */
 198         TTYC_CUP,       /* cursor_address, cm */
 199         TTYC_CUU,       /* parm_up_cursor, UP */
 200         TTYC_CUU1,      /* cursor_up, up */
 201         TTYC_DCH,       /* parm_dch, DC */
 202         TTYC_DCH1,      /* delete_character, dc */
 203         TTYC_DIM,       /* enter_dim_mode, mh */
 204         TTYC_DL,        /* parm_delete_line, DL */
 205         TTYC_DL1,       /* delete_line, dl */
 206         TTYC_EL,        /* clr_eol, ce */
 207         TTYC_EL1,       /* clr_bol, cb */
 208         TTYC_ENACS,     /* ena_acs, eA */
 209         TTYC_HOME,      /* cursor_home, ho */
 210         TTYC_HPA,       /* column_address, ch */
 211         TTYC_ICH,       /* parm_ich, IC */
 212         TTYC_ICH1,      /* insert_character, ic */
 213         TTYC_IL,        /* parm_insert_line, IL */
 214         TTYC_IL1,       /* insert_line, il */
 215         TTYC_INVIS,     /* enter_secure_mode, mk */
 216         TTYC_IS1,       /* init_1string, i1 */
 217         TTYC_IS2,       /* init_2string, i2 */
 218         TTYC_IS3,       /* init_3string, i3 */
 219         TTYC_KCBT,      /* key_btab, kB */
 220         TTYC_KCUB1,     /* key_left, kl */
 221         TTYC_KCUD1,     /* key_down, kd */
 222         TTYC_KCUF1,     /* key_right, kr */
 223         TTYC_KCUU1,     /* key_up, ku */
 224         TTYC_KDC2,
 225         TTYC_KDC3,
 226         TTYC_KDC4,
 227         TTYC_KDC5,
 228         TTYC_KDC6,
 229         TTYC_KDC7,
 230         TTYC_KDCH1,     /* key_dc, kD */
 231         TTYC_KDN2,
 232         TTYC_KDN3,
 233         TTYC_KDN4,
 234         TTYC_KDN5,
 235         TTYC_KDN6,
 236         TTYC_KDN7,
 237         TTYC_KEND,      /* key_end, ke */
 238         TTYC_KEND2,
 239         TTYC_KEND3,
 240         TTYC_KEND4,
 241         TTYC_KEND5,
 242         TTYC_KEND6,
 243         TTYC_KEND7,
 244         TTYC_KF1,       /* key_f1, k1 */
 245         TTYC_KF10,      /* key_f10, k; */
 246         TTYC_KF11,      /* key_f11, F1 */
 247         TTYC_KF12,      /* key_f12, F2 */
 248         TTYC_KF13,      /* key_f13, F3 */
 249         TTYC_KF14,      /* key_f14, F4 */
 250         TTYC_KF15,      /* key_f15, F5 */
 251         TTYC_KF16,      /* key_f16, F6 */
 252         TTYC_KF17,      /* key_f17, F7 */
 253         TTYC_KF18,      /* key_f18, F8 */
 254         TTYC_KF19,      /* key_f19, F9 */
 255         TTYC_KF2,       /* key_f2, k2 */
 256         TTYC_KF20,      /* key_f20, F10 */
 257         TTYC_KF3,       /* key_f3, k3 */
 258         TTYC_KF4,       /* key_f4, k4 */
 259         TTYC_KF5,       /* key_f5, k5 */
 260         TTYC_KF6,       /* key_f6, k6 */
 261         TTYC_KF7,       /* key_f7, k7 */
 262         TTYC_KF8,       /* key_f8, k8 */
 263         TTYC_KF9,       /* key_f9, k9 */
 264         TTYC_KHOM2,
 265         TTYC_KHOM3,
 266         TTYC_KHOM4,
 267         TTYC_KHOM5,
 268         TTYC_KHOM6,
 269         TTYC_KHOM7,
 270         TTYC_KHOME,     /* key_home, kh */
 271         TTYC_KIC2,
 272         TTYC_KIC3,
 273         TTYC_KIC4,
 274         TTYC_KIC5,
 275         TTYC_KIC6,
 276         TTYC_KIC7,
 277         TTYC_KICH1,     /* key_ic, kI */
 278         TTYC_KLFT2,
 279         TTYC_KLFT3,
 280         TTYC_KLFT4,
 281         TTYC_KLFT5,
 282         TTYC_KLFT6,
 283         TTYC_KLFT7,
 284         TTYC_KMOUS,     /* key_mouse, Km */
 285         TTYC_KNP,       /* key_npage, kN */
 286         TTYC_KNXT2,
 287         TTYC_KNXT3,
 288         TTYC_KNXT4,
 289         TTYC_KNXT5,
 290         TTYC_KNXT6,
 291         TTYC_KNXT7,
 292         TTYC_KPP,       /* key_ppage, kP */
 293         TTYC_KPRV2,
 294         TTYC_KPRV3,
 295         TTYC_KPRV4,
 296         TTYC_KPRV5,
 297         TTYC_KPRV6,
 298         TTYC_KPRV7,
 299         TTYC_KRIT2,
 300         TTYC_KRIT3,
 301         TTYC_KRIT4,
 302         TTYC_KRIT5,
 303         TTYC_KRIT6,
 304         TTYC_KRIT7,
 305         TTYC_KUP2,
 306         TTYC_KUP3,
 307         TTYC_KUP4,
 308         TTYC_KUP5,
 309         TTYC_KUP6,
 310         TTYC_KUP7,
 311         TTYC_OP,        /* orig_pair, op */
 312         TTYC_REV,       /* enter_reverse_mode, mr */
 313         TTYC_RI,        /* scroll_reverse, sr */
 314         TTYC_RMACS,     /* exit_alt_charset_mode */
 315         TTYC_RMCUP,     /* exit_ca_mode, te */
 316         TTYC_RMIR,      /* exit_insert_mode, ei */
 317         TTYC_RMKX,      /* keypad_local, ke */
 318         TTYC_SETAB,     /* set_a_background, AB */
 319         TTYC_SETAF,     /* set_a_foreground, AF */
 320         TTYC_SGR0,      /* exit_attribute_mode, me */
 321         TTYC_SMACS,     /* enter_alt_charset_mode, as */
 322         TTYC_SMCUP,     /* enter_ca_mode, ti */
 323         TTYC_SMIR,      /* enter_insert_mode, im */
 324         TTYC_SMKX,      /* keypad_xmit, ks */
 325         TTYC_SMSO,      /* enter_standout_mode, so */
 326         TTYC_SMUL,      /* enter_underline_mode, us */
 327         TTYC_VPA,       /* row_address, cv */
 328         TTYC_XENL,      /* eat_newline_glitch, xn */
 329 };
 330 #define NTTYCODE (TTYC_XENL + 1)
 331
 332 /* Termcap types. */
 333 enum tty_code_type {
 334         TTYCODE_NONE = 0,
 335         TTYCODE_STRING,
 336         TTYCODE_NUMBER,
 337         TTYCODE_FLAG,
 338 };
 339
 340 /* Termcap code. */
 341 struct tty_code {
 342         enum tty_code_type      type;
 343         union {
 344                 char           *string;
 345                 int             number;
 346                 int             flag;
 347         } value;
 348 };
 349
 350 /* Entry in terminal code table. */
 351 struct tty_term_code_entry {
 352         enum tty_code_code      code;
 353         enum tty_code_type      type;
 354         const char             *name;
 355 };
 356
 357 /* Message codes. */
 358 enum msgtype {
 359         MSG_COMMAND,
 360         MSG_DETACH,
 361         MSG_ERROR,
 362         MSG_EXIT,
 363         MSG_EXITED,
 364         MSG_EXITING,
 365         MSG_IDENTIFY,
 366         MSG_PRINT,
 367         MSG_READY,
 368         MSG_RESIZE,
 369         MSG_SHUTDOWN,
 370         MSG_SUSPEND,
 371         MSG_VERSION,
 372         MSG_WAKEUP,
 373         MSG_ENVIRON,
 374         MSG_UNLOCK,
 375         MSG_LOCK,
 376         MSG_SHELL
 377 };
 378
 379 /*
 380  * Message data.
 381  *
 382  * Don't forget to bump PROTOCOL_VERSION if any of these change!
 383  */
 384 struct msg_print_data {
 385         char            msg[PRINT_LENGTH];
 386 };
 387
 388 struct msg_command_data {
 389         pid_t           pid;                    /* pid from $TMUX or -1 */
 390         u_int           idx;                    /* index from $TMUX */
 391
 392         int             argc;
 393         char            argv[COMMAND_LENGTH];
 394 };
 395
 396 struct msg_identify_data {
 397         char            cwd[MAXPATHLEN];
 398
 399         char            term[TERMINAL_LENGTH];
 400
 401 #define IDENTIFY_UTF8 0x1
 402 #define IDENTIFY_256COLOURS 0x2
 403 #define IDENTIFY_88COLOURS 0x4
 404         int             flags;
 405 };
 406
 407 struct msg_lock_data {
 408         char            cmd[COMMAND_LENGTH];
 409 };
 410
 411 struct msg_environ_data {
 412         char            var[ENVIRON_LENGTH];
 413 };
 414
 415 struct msg_shell_data {
 416         char            shell[MAXPATHLEN];
 417 };
 418
 419 /* Mode key commands. */
 420 enum mode_key_cmd {
 421         MODEKEY_NONE,
 422         MODEKEY_OTHER,
 423
 424         /* Editing keys. */
 425         MODEKEYEDIT_BACKSPACE,
 426         MODEKEYEDIT_CANCEL,
 427         MODEKEYEDIT_COMPLETE,
 428         MODEKEYEDIT_CURSORLEFT,
 429         MODEKEYEDIT_CURSORRIGHT,
 430         MODEKEYEDIT_DELETE,
 431         MODEKEYEDIT_DELETELINE,
 432         MODEKEYEDIT_DELETETOENDOFLINE,
 433         MODEKEYEDIT_ENDOFLINE,
 434         MODEKEYEDIT_ENTER,
 435         MODEKEYEDIT_HISTORYDOWN,
 436         MODEKEYEDIT_HISTORYUP,
 437         MODEKEYEDIT_PASTE,
 438         MODEKEYEDIT_STARTOFLINE,
 439         MODEKEYEDIT_SWITCHMODE,
 440         MODEKEYEDIT_SWITCHMODEAPPEND,
 441         MODEKEYEDIT_TRANSPOSECHARS,
 442
 443         /* Menu (choice) keys. */
 444         MODEKEYCHOICE_CANCEL,
 445         MODEKEYCHOICE_CHOOSE,
 446         MODEKEYCHOICE_DOWN,
 447         MODEKEYCHOICE_PAGEDOWN,
 448         MODEKEYCHOICE_PAGEUP,
 449         MODEKEYCHOICE_SCROLLDOWN,
 450         MODEKEYCHOICE_SCROLLUP,
 451         MODEKEYCHOICE_UP,
 452
 453         /* Copy keys. */
 454         MODEKEYCOPY_BACKTOINDENTATION,
 455         MODEKEYCOPY_BOTTOMLINE,
 456         MODEKEYCOPY_CANCEL,
 457         MODEKEYCOPY_CLEARSELECTION,
 458         MODEKEYCOPY_COPYSELECTION,
 459         MODEKEYCOPY_DOWN,
 460         MODEKEYCOPY_ENDOFLINE,
 461         MODEKEYCOPY_GOTOLINE,
 462         MODEKEYCOPY_HALFPAGEDOWN,
 463         MODEKEYCOPY_HALFPAGEUP,
 464         MODEKEYCOPY_HISTORYBOTTOM,
 465         MODEKEYCOPY_HISTORYTOP,
 466         MODEKEYCOPY_JUMP,
 467         MODEKEYCOPY_JUMPAGAIN,
 468         MODEKEYCOPY_JUMPREVERSE,
 469         MODEKEYCOPY_JUMPBACK,
 470         MODEKEYCOPY_LEFT,
 471         MODEKEYCOPY_MIDDLELINE,
 472         MODEKEYCOPY_NEXTPAGE,
 473         MODEKEYCOPY_NEXTSPACE,
 474         MODEKEYCOPY_NEXTSPACEEND,
 475         MODEKEYCOPY_NEXTWORD,
 476         MODEKEYCOPY_NEXTWORDEND,
 477         MODEKEYCOPY_PREVIOUSPAGE,
 478         MODEKEYCOPY_PREVIOUSSPACE,
 479         MODEKEYCOPY_PREVIOUSWORD,
 480         MODEKEYCOPY_RECTANGLETOGGLE,
 481         MODEKEYCOPY_RIGHT,
 482         MODEKEYCOPY_SCROLLDOWN,
 483         MODEKEYCOPY_SCROLLUP,
 484         MODEKEYCOPY_SEARCHAGAIN,
 485         MODEKEYCOPY_SEARCHDOWN,
 486         MODEKEYCOPY_SEARCHREVERSE,
 487         MODEKEYCOPY_SEARCHUP,
 488         MODEKEYCOPY_STARTNUMBERPREFIX,
 489         MODEKEYCOPY_STARTOFLINE,
 490         MODEKEYCOPY_STARTSELECTION,
 491         MODEKEYCOPY_TOPLINE,
 492         MODEKEYCOPY_UP,
 493 };
 494
 495 /* Entry in the default mode key tables. */
 496 struct mode_key_entry {
 497         int                     key;
 498
 499         /*
 500          * Editing mode for vi: 0 is edit mode, keys not in the table are
 501          * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
 502          * are returned as MODEKEY_NONE. This is also matched on, allowing some
 503          * keys to be bound in edit mode.
 504          */
 505         int                     mode;
 506         enum mode_key_cmd       cmd;
 507 };
 508
 509 /* Data required while mode keys are in use. */
 510 struct mode_key_data {
 511         struct mode_key_tree   *tree;
 512         int                     mode;
 513 };
 514 #define MODEKEY_EMACS 0
 515 #define MODEKEY_VI 1
 516
 517 /* Binding between a key and a command. */
 518 struct mode_key_binding {
 519         int                     key;
 520
 521         int                     mode;
 522         enum mode_key_cmd       cmd;
 523
 524         SPLAY_ENTRY(mode_key_binding) entry;
 525 };
 526 SPLAY_HEAD(mode_key_tree, mode_key_binding);
 527
 528 /* Command to string mapping. */
 529 struct mode_key_cmdstr {
 530         enum mode_key_cmd        cmd;
 531         const char              *name;
 532 };
 533
 534 /* Named mode key table description. */
 535 struct mode_key_table {
 536         const char              *name;
 537         struct mode_key_cmdstr  *cmdstr;
 538         struct mode_key_tree    *tree;
 539         const struct mode_key_entry *table;     /* default entries */
 540 };
 541
 542 /* Modes. */
 543 #define MODE_CURSOR 0x1
 544 #define MODE_INSERT 0x2
 545 #define MODE_KCURSOR 0x4
 546 #define MODE_KKEYPAD 0x8        /* set = application, clear = number */
 547 #define MODE_MOUSE 0x10
 548 #define MODE_MOUSEMOTION 0x20
 549 #define MODE_WRAP 0x40          /* whether lines wrap */
 550
 551 /*
 552  * A single UTF-8 character.
 553  *
 554  * The data member in this must be UTF8_SIZE to allow screen_write_copy to
 555  * reinject stored UTF-8 data back into screen_write_cell after combining (ugh
 556  * XXX XXX).
 557  */
 558 struct utf8_data {
 559         u_char  data[UTF8_SIZE];
 560
 561         size_t  have;
 562         size_t  size;
 563
 564         u_int   width;
 565 };
 566
 567 /* Grid output. */
 568 #if defined(DEBUG) && \
 569     ((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
 570      (defined(__GNUC__) && __GNUC__ >= 3))
 571 #define GRID_DEBUG(gd, fmt, ...) log_debug2("%s: (sx=%u, sy=%u, hsize=%u) " \
 572     fmt, __func__, (gd)->sx, (gd)->sy, (gd)->hsize, ## __VA_ARGS__)
 573 #else
 574 #define GRID_DEBUG(...)
 575 #endif
 576
 577 /* Grid attributes. */
 578 #define GRID_ATTR_BRIGHT 0x1
 579 #define GRID_ATTR_DIM 0x2
 580 #define GRID_ATTR_UNDERSCORE 0x4
 581 #define GRID_ATTR_BLINK 0x8
 582 #define GRID_ATTR_REVERSE 0x10
 583 #define GRID_ATTR_HIDDEN 0x20
 584 #define GRID_ATTR_ITALICS 0x40
 585 #define GRID_ATTR_CHARSET 0x80  /* alternative character set */
 586
 587 /* Grid flags. */
 588 #define GRID_FLAG_FG256 0x1
 589 #define GRID_FLAG_BG256 0x2
 590 #define GRID_FLAG_PADDING 0x4
 591 #define GRID_FLAG_UTF8 0x8
 592
 593 /* Grid line flags. */
 594 #define GRID_LINE_WRAPPED 0x1
 595
 596 /* Grid cell data. */
 597 struct grid_cell {
 598         u_char  attr;
 599         u_char  flags;
 600         u_char  fg;
 601         u_char  bg;
 602         u_char  data;
 603 } __packed;
 604
 605 /* Grid cell UTF-8 data. Used instead of data in grid_cell for UTF-8 cells. */
 606 struct grid_utf8 {
 607         u_char  width;
 608         u_char  data[UTF8_SIZE];
 609 } __packed;
 610
 611 /* Grid line. */
 612 struct grid_line {
 613         u_int   cellsize;
 614         struct grid_cell *celldata;
 615
 616         u_int   utf8size;
 617         struct grid_utf8 *utf8data;
 618
 619         int     flags;
 620 } __packed;
 621
 622 /* Entire grid of cells. */
 623 struct grid {
 624         int     flags;
 625 #define GRID_HISTORY 0x1        /* scroll lines into history */
 626
 627         u_int   sx;
 628         u_int   sy;
 629
 630         u_int   hsize;
 631         u_int   hlimit;
 632
 633         struct grid_line *linedata;
 634 };
 635
 636 /* Option data structures. */
 637 struct options_entry {
 638         char            *name;
 639
 640         enum {
 641                 OPTIONS_STRING,
 642                 OPTIONS_NUMBER,
 643                 OPTIONS_DATA,
 644         } type;
 645
 646         char            *str;
 647         long long        num;
 648         void            *data;
 649
 650         void             (*freefn)(void *);
 651
 652         SPLAY_ENTRY(options_entry) entry;
 653 };
 654
 655 struct options {
 656         SPLAY_HEAD(options_tree, options_entry) tree;
 657         struct options  *parent;
 658 };
 659
 660 /* Key list for prefix option. */
 661 ARRAY_DECL(keylist, int);
 662
 663 /* Scheduled job. */
 664 struct job {
 665         char            *cmd;
 666         pid_t            pid;
 667         int              status;
 668
 669         struct client   *client;
 670
 671         int              fd;
 672         struct bufferevent *event;
 673
 674         void            (*callbackfn)(struct job *);
 675         void            (*freefn)(void *);
 676         void            *data;
 677
 678         int              flags;
 679 #define JOB_PERSIST 0x1 /* don't free after callback */
 680
 681         RB_ENTRY(job)    entry;
 682         SLIST_ENTRY(job) lentry;
 683 };
 684 RB_HEAD(jobs, job);
 685 SLIST_HEAD(joblist, job);
 686
 687 /* Screen selection. */
 688 struct screen_sel {
 689         int              flag;
 690         int              rectflag;
 691
 692         u_int            sx;
 693         u_int            sy;
 694
 695         u_int            ex;
 696         u_int            ey;
 697
 698         struct grid_cell cell;
 699 };
 700
 701 /* Virtual screen. */
 702 struct screen {
 703         char            *title;
 704
 705         struct grid     *grid;          /* grid data */
 706
 707         u_int            cx;            /* cursor x */
 708         u_int            cy;            /* cursor y */
 709
 710         u_int            rupper;        /* scroll region top */
 711         u_int            rlower;        /* scroll region bottom */
 712
 713         int              mode;
 714
 715         bitstr_t        *tabs;
 716
 717         struct screen_sel sel;
 718 };
 719
 720 /* Screen write context. */
 721 struct screen_write_ctx {
 722         struct window_pane *wp;
 723         struct screen   *s;
 724 };
 725
 726 /* Screen size. */
 727 #define screen_size_x(s) ((s)->grid->sx)
 728 #define screen_size_y(s) ((s)->grid->sy)
 729 #define screen_hsize(s) ((s)->grid->hsize)
 730 #define screen_hlimit(s) ((s)->grid->hlimit)
 731
 732 /* Input parser context. */
 733 struct input_ctx {
 734         struct window_pane     *wp;
 735         struct screen_write_ctx ctx;
 736
 737         struct grid_cell        cell;
 738
 739         struct grid_cell        old_cell;
 740         u_int                   old_cx;
 741         u_int                   old_cy;
 742
 743         u_char                  interm_buf[4];
 744         size_t                  interm_len;
 745
 746         u_char                  param_buf[64];
 747         size_t                  param_len;
 748
 749         u_char                  input_buf[256];
 750         size_t                  input_len;
 751
 752         int                     param_list[24]; /* -1 not present */
 753         u_int                   param_list_len;
 754
 755         struct utf8_data        utf8data;
 756
 757         int                     ch;
 758         int                     flags;
 759 #define INPUT_DISCARD 0x1
 760
 761         const struct input_state *state;
 762 };
 763
 764 /*
 765  * Window mode. Windows can be in several modes and this is used to call the
 766  * right function to handle input and output.
 767  */
 768 struct session;
 769 struct window;
 770 struct mouse_event;
 771 struct window_mode {
 772         struct screen *(*init)(struct window_pane *);
 773         void    (*free)(struct window_pane *);
 774         void    (*resize)(struct window_pane *, u_int, u_int);
 775         void    (*key)(struct window_pane *, struct session *, int);
 776         void    (*mouse)(struct window_pane *,
 777                     struct session *, struct mouse_event *);
 778         void    (*timer)(struct window_pane *);
 779 };
 780
 781 /* Child window structure. */
 782 struct window_pane {
 783         struct window   *window;
 784         struct layout_cell *layout_cell;
 785
 786         u_int            sx;
 787         u_int            sy;
 788
 789         u_int            xoff;
 790         u_int            yoff;
 791
 792         int              flags;
 793 #define PANE_REDRAW 0x1
 794 #define PANE_FREEZE 0x2
 795
 796         char            *cmd;
 797         char            *shell;
 798         char            *cwd;
 799
 800         pid_t            pid;
 801         char             tty[TTY_NAME_MAX];
 802
 803         int              fd;
 804         struct bufferevent *event;
 805
 806         struct input_ctx ictx;
 807
 808         int              pipe_fd;
 809         struct bufferevent *pipe_event;
 810         size_t           pipe_off;
 811
 812         struct screen   *screen;
 813         struct screen    base;
 814
 815         /* Saved in alternative screen mode. */
 816         u_int            saved_cx;
 817         u_int            saved_cy;
 818         struct grid     *saved_grid;
 819         struct grid_cell saved_cell;
 820
 821         const struct window_mode *mode;
 822         void            *modedata;
 823
 824         TAILQ_ENTRY(window_pane) entry;
 825 };
 826 TAILQ_HEAD(window_panes, window_pane);
 827
 828 /* Window structure. */
 829 struct window {
 830         char            *name;
 831         struct event     name_timer;
 832
 833         struct window_pane *active;
 834         struct window_panes panes;
 835
 836         int              lastlayout;
 837         struct layout_cell *layout_root;
 838
 839         u_int            sx;
 840         u_int            sy;
 841
 842         int              flags;
 843 #define WINDOW_BELL 0x1
 844 #define WINDOW_HIDDEN 0x2
 845 #define WINDOW_ACTIVITY 0x4
 846 #define WINDOW_REDRAW 0x8
 847
 848         struct options   options;
 849
 850         u_int            references;
 851 };
 852 ARRAY_DECL(windows, struct window *);
 853
 854 /* Entry on local window list. */
 855 struct winlink {
 856         int              idx;
 857         struct window   *window;
 858
 859         size_t           status_width;
 860         struct grid_cell status_cell;
 861         char            *status_text;
 862
 863         int              flags;
 864 #define WINLINK_BELL 0x1
 865 #define WINLINK_ACTIVITY 0x2
 866 #define WINLINK_CONTENT 0x4
 867 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_CONTENT)
 868
 869         RB_ENTRY(winlink) entry;
 870         TAILQ_ENTRY(winlink) sentry;
 871 };
 872 RB_HEAD(winlinks, winlink);
 873 TAILQ_HEAD(winlink_stack, winlink);
 874
 875 /* Layout direction. */
 876 enum layout_type {
 877         LAYOUT_LEFTRIGHT,
 878         LAYOUT_TOPBOTTOM,
 879         LAYOUT_WINDOWPANE
 880 };
 881
 882 /* Layout cells queue. */
 883 TAILQ_HEAD(layout_cells, layout_cell);
 884
 885 /* Layout cell. */
 886 struct layout_cell {
 887         enum layout_type type;
 888
 889         struct layout_cell *parent;
 890
 891         u_int            sx;
 892         u_int            sy;
 893
 894         u_int            xoff;
 895         u_int            yoff;
 896
 897         struct window_pane *wp;
 898         struct layout_cells cells;
 899
 900         TAILQ_ENTRY(layout_cell) entry;
 901 };
 902
 903 /* Paste buffer. */
 904 struct paste_buffer {
 905         char            *data;
 906         size_t           size;
 907 };
 908 ARRAY_DECL(paste_stack, struct paste_buffer *);
 909
 910 /* Environment variable. */
 911 struct environ_entry {
 912         char            *name;
 913         char            *value;
 914
 915         RB_ENTRY(environ_entry) entry;
 916 };
 917 RB_HEAD(environ, environ_entry);
 918
 919 /* Client session. */
 920 struct session_group {
 921         TAILQ_HEAD(, session) sessions;
 922
 923         TAILQ_ENTRY(session_group) entry;
 924 };
 925 TAILQ_HEAD(session_groups, session_group);
 926
 927 struct session {
 928         char            *name;
 929
 930         struct timeval   creation_time;
 931         struct timeval   activity_time;
 932
 933         u_int            sx;
 934         u_int            sy;
 935
 936         struct winlink  *curw;
 937         struct winlink_stack lastw;
 938         struct winlinks  windows;
 939
 940         struct options   options;
 941
 942         struct paste_stack buffers;
 943
 944 #define SESSION_UNATTACHED 0x1  /* not attached to any clients */
 945 #define SESSION_DEAD 0x2
 946         int              flags;
 947
 948         struct termios  *tio;
 949
 950         struct environ   environ;
 951
 952         int              references;
 953
 954         TAILQ_ENTRY(session) gentry;
 955 };
 956 ARRAY_DECL(sessions, struct session *);
 957
 958 /* TTY information. */
 959 struct tty_key {
 960         char             ch;
 961         int              key;
 962
 963         struct tty_key  *left;
 964         struct tty_key  *right;
 965
 966         struct tty_key  *next;
 967 };
 968
 969 struct tty_term {
 970         char            *name;
 971         u_int            references;
 972
 973         struct tty_code  codes[NTTYCODE];
 974
 975 #define TERM_256COLOURS 0x1
 976 #define TERM_88COLOURS 0x2
 977 #define TERM_EARLYWRAP 0x4
 978         int              flags;
 979
 980         SLIST_ENTRY(tty_term) entry;
 981 };
 982 SLIST_HEAD(tty_terms, tty_term);
 983
 984 struct tty {
 985         char            *path;
 986
 987         u_int            sx;
 988         u_int            sy;
 989
 990         u_int            cx;
 991         u_int            cy;
 992
 993         int              mode;
 994
 995         u_int            rlower;
 996         u_int            rupper;
 997
 998         char            *termname;
 999         struct tty_term *term;
1000
1001         int              fd;
1002         struct bufferevent *event;
1003
1004         int              log_fd;
1005
1006         struct termios   tio;
1007
1008         struct grid_cell cell;
1009
1010         u_char           acs[UCHAR_MAX + 1];
1011
1012 #define TTY_NOCURSOR 0x1
1013 #define TTY_FREEZE 0x2
1014 #define TTY_ESCAPE 0x4
1015 #define TTY_UTF8 0x8
1016 #define TTY_STARTED 0x10
1017 #define TTY_OPENED 0x20
1018         int              flags;
1019
1020         int              term_flags;
1021
1022         void             (*key_callback)(int, struct mouse_event *, void *);
1023         void            *key_data;
1024         struct event     key_timer;
1025         struct tty_key  *key_tree;
1026 };
1027
1028 /* TTY command context and function pointer. */
1029 struct tty_ctx {
1030         struct window_pane *wp;
1031
1032         const struct grid_cell *cell;
1033         const struct grid_utf8 *utf8;
1034
1035         u_int            num;
1036         void            *ptr;
1037
1038         /*
1039          * Cursor and region position before the screen was updated - this is
1040          * where the command should be applied; the values in the screen have
1041          * already been updated.
1042          */
1043         u_int            ocx;
1044         u_int            ocy;
1045
1046         u_int            orupper;
1047         u_int            orlower;
1048
1049         /* Saved last cell on line. */
1050         struct grid_cell last_cell;
1051         struct grid_utf8 last_utf8;
1052         u_int            last_width;
1053 };
1054
1055 /* Mouse input. */
1056 struct mouse_event {
1057         u_char  b;
1058         u_char  x;
1059         u_char  y;
1060 };
1061
1062 /* Saved message entry. */
1063 struct message_entry {
1064         char   *msg;
1065         time_t  msg_time;
1066 };
1067
1068 /* Client connection. */
1069 struct client {
1070         struct imsgbuf   ibuf;
1071         struct event     event;
1072
1073         struct timeval   creation_time;
1074         struct timeval   activity_time;
1075
1076         struct environ   environ;
1077
1078         char            *title;
1079         char            *cwd;
1080
1081         struct tty       tty;
1082         struct event     repeat_timer;
1083
1084         struct timeval   status_timer;
1085         struct jobs      status_jobs;
1086         struct screen    status;
1087
1088 #define CLIENT_TERMINAL 0x1
1089 #define CLIENT_PREFIX 0x2
1090 /* 0x4 unused */
1091 #define CLIENT_REDRAW 0x8
1092 #define CLIENT_STATUS 0x10
1093 #define CLIENT_REPEAT 0x20      /* allow command to repeat within repeat time */
1094 #define CLIENT_SUSPENDED 0x40
1095 #define CLIENT_BAD 0x80
1096 #define CLIENT_IDENTIFY 0x100
1097 #define CLIENT_DEAD 0x200
1098 #define CLIENT_BORDERS 0x400
1099 #define CLIENT_READONLY 0x800
1100         int              flags;
1101
1102         struct event     identify_timer;
1103
1104         char            *message_string;
1105         struct event     message_timer;
1106         ARRAY_DECL(, struct message_entry) message_log;
1107
1108         char            *prompt_string;
1109         char            *prompt_buffer;
1110         size_t           prompt_index;
1111         int              (*prompt_callbackfn)(void *, const char *);
1112         void             (*prompt_freefn)(void *);
1113         void            *prompt_data;
1114
1115 #define PROMPT_SINGLE 0x1
1116         int              prompt_flags;
1117
1118         u_int            prompt_hindex;
1119         ARRAY_DECL(, char *) prompt_hdata;
1120
1121         struct mode_key_data prompt_mdata;
1122
1123         struct session  *session;
1124
1125         int              references;
1126 };
1127 ARRAY_DECL(clients, struct client *);
1128
1129 /* Key/command line command. */
1130 struct cmd_ctx {
1131         /*
1132          * curclient is the client where this command was executed if inside
1133          * tmux. This is NULL if the command came from the command-line.
1134          *
1135          * cmdclient is the client which sent the MSG_COMMAND to the server, if
1136          * any. This is NULL unless the command came from the command-line.
1137          *
1138          * cmdclient and curclient may both be NULL if the command is in the
1139          * configuration file.
1140          */
1141         struct client  *curclient;
1142         struct client  *cmdclient;
1143
1144         struct msg_command_data *msgdata;
1145
1146         /* gcc2 doesn't understand attributes on function pointers... */
1147 #if defined(__GNUC__) && __GNUC__ >= 3
1148         void printflike2 (*print)(struct cmd_ctx *, const char *, ...);
1149         void printflike2 (*info)(struct cmd_ctx *, const char *, ...);
1150         void printflike2 (*error)(struct cmd_ctx *, const char *, ...);
1151 #else
1152         void (*print)(struct cmd_ctx *, const char *, ...);
1153         void (*info)(struct cmd_ctx *, const char *, ...);
1154         void (*error)(struct cmd_ctx *, const char *, ...);
1155 #endif
1156 };
1157
1158 struct cmd {
1159         const struct cmd_entry *entry;
1160         void            *data;
1161
1162         TAILQ_ENTRY(cmd) qentry;
1163 };
1164 struct cmd_list {
1165         int              references;
1166         TAILQ_HEAD(, cmd) list;
1167 };
1168
1169 struct cmd_entry {
1170         const char      *name;
1171         const char      *alias;
1172         const char      *usage;
1173
1174 #define CMD_STARTSERVER 0x1
1175 #define CMD_CANTNEST 0x2
1176 #define CMD_SENDENVIRON 0x4
1177 #define CMD_ARG1 0x8
1178 #define CMD_ARG01 0x10
1179 #define CMD_ARG2 0x20
1180 #define CMD_ARG12 0x40
1181 #define CMD_READONLY 0x80
1182         int              flags;
1183
1184         const char      *chflags;
1185
1186         void             (*init)(struct cmd *, int);
1187         int              (*parse)(struct cmd *, int, char **, char **);
1188         int              (*exec)(struct cmd *, struct cmd_ctx *);
1189         void             (*free)(struct cmd *);
1190         size_t           (*print)(struct cmd *, char *, size_t);
1191 };
1192
1193 /* Generic command data. */
1194 struct cmd_target_data {
1195         uint64_t chflags;
1196
1197         char    *target;
1198
1199         char    *arg;
1200         char    *arg2;
1201 };
1202
1203 struct cmd_srcdst_data {
1204         uint64_t chflags;
1205
1206         char    *src;
1207         char    *dst;
1208
1209         char    *arg;
1210         char    *arg2;
1211 };
1212
1213 struct cmd_buffer_data {
1214         uint64_t chflags;
1215
1216         char    *target;
1217         int      buffer;
1218
1219         char    *arg;
1220         char    *arg2;
1221 };
1222
1223 /* Key binding. */
1224 struct key_binding {
1225         int              key;
1226         struct cmd_list *cmdlist;
1227         int              can_repeat;
1228
1229         SPLAY_ENTRY(key_binding) entry;
1230 };
1231 SPLAY_HEAD(key_bindings, key_binding);
1232
1233 /* Set/display option data. */
1234 struct set_option_entry {
1235         const char      *name;
1236         enum {
1237                 SET_OPTION_STRING,
1238                 SET_OPTION_NUMBER,
1239                 SET_OPTION_KEYS,
1240                 SET_OPTION_COLOUR,
1241                 SET_OPTION_ATTRIBUTES,
1242                 SET_OPTION_FLAG,
1243                 SET_OPTION_CHOICE
1244         } type;
1245
1246         u_int            minimum;
1247         u_int            maximum;
1248
1249         const char     **choices;
1250 };
1251
1252 /* List of configuration causes. */
1253 ARRAY_DECL(causelist, char *);
1254
1255 /* tmux.c */
1256 extern struct options global_options;
1257 extern struct options global_s_options;
1258 extern struct options global_w_options;
1259 extern struct environ global_environ;
1260 extern struct event_base *ev_base;
1261 extern char     *cfg_file;
1262 extern int       debug_level;
1263 extern int       be_quiet;
1264 extern time_t    start_time;
1265 extern char     *socket_path;
1266 extern int       login_shell;
1267 void             logfile(const char *);
1268 const char      *getshell(void);
1269 int              checkshell(const char *);
1270 int              areshell(const char *);
1271
1272 /* cfg.c */
1273 extern int       cfg_finished;
1274 struct causelist cfg_causes;
1275 void printflike2 cfg_add_cause(struct causelist *, const char *, ...);
1276 int              load_cfg(const char *, struct cmd_ctx *, struct causelist *);
1277
1278 /* mode-key.c */
1279 extern const struct mode_key_table mode_key_tables[];
1280 extern struct mode_key_tree mode_key_tree_vi_edit;
1281 extern struct mode_key_tree mode_key_tree_vi_choice;
1282 extern struct mode_key_tree mode_key_tree_vi_copy;
1283 extern struct mode_key_tree mode_key_tree_emacs_edit;
1284 extern struct mode_key_tree mode_key_tree_emacs_choice;
1285 extern struct mode_key_tree mode_key_tree_emacs_copy;
1286 int     mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1287 SPLAY_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1288 const char *mode_key_tostring(struct mode_key_cmdstr *r, enum mode_key_cmd);
1289 enum mode_key_cmd mode_key_fromstring(struct mode_key_cmdstr *, const char *);
1290 const struct mode_key_table *mode_key_findtable(const char *);
1291 void    mode_key_init_trees(void);
1292 void    mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1293 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int);
1294
1295 /* options.c */
1296 int     options_cmp(struct options_entry *, struct options_entry *);
1297 SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1298 void    options_init(struct options *, struct options *);
1299 void    options_free(struct options *);
1300 struct options_entry *options_find1(struct options *, const char *);
1301 struct options_entry *options_find(struct options *, const char *);
1302 void    options_remove(struct options *, const char *);
1303 struct options_entry *printflike3 options_set_string(
1304             struct options *, const char *, const char *, ...);
1305 char   *options_get_string(struct options *, const char *);
1306 struct options_entry *options_set_number(
1307             struct options *, const char *, long long);
1308 long long options_get_number(struct options *, const char *);
1309 struct options_entry *options_set_data(
1310             struct options *, const char *, void *, void (*)(void *));
1311 void   *options_get_data(struct options *, const char *);
1312
1313 /* job.c */
1314 extern struct joblist all_jobs;
1315 int     job_cmp(struct job *, struct job *);
1316 RB_PROTOTYPE(jobs, job, entry, job_cmp);
1317 void    job_tree_init(struct jobs *);
1318 void    job_tree_free(struct jobs *);
1319 struct job *job_get(struct jobs *, const char *);
1320 struct job *job_add(struct jobs *, int, struct client *,
1321             const char *, void (*)(struct job *), void (*)(void *), void *);
1322 void    job_remove(struct jobs *, struct job *);
1323 void    job_free(struct job *);
1324 int     job_run(struct job *);
1325 void    job_died(struct job *, int);
1326 void    job_kill(struct job *);
1327
1328 /* environ.c */
1329 int     environ_cmp(struct environ_entry *, struct environ_entry *);
1330 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1331 void    environ_init(struct environ *);
1332 void    environ_free(struct environ *);
1333 void    environ_copy(struct environ *, struct environ *);
1334 struct environ_entry *environ_find(struct environ *, const char *);
1335 void    environ_set(struct environ *, const char *, const char *);
1336 void    environ_put(struct environ *, const char *);
1337 void    environ_unset(struct environ *, const char *);
1338 void    environ_update(const char *, struct environ *, struct environ *);
1339 void    environ_push(struct environ *);
1340
1341 /* tty.c */
1342 void    tty_raw(struct tty *, const char *);
1343 u_char  tty_get_acs(struct tty *, u_char);
1344 void    tty_attributes(struct tty *, const struct grid_cell *);
1345 void    tty_reset(struct tty *);
1346 void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1347 void    tty_region(struct tty *, u_int, u_int);
1348 void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1349 void    tty_cursor(struct tty *, u_int, u_int);
1350 void    tty_putcode(struct tty *, enum tty_code_code);
1351 void    tty_putcode1(struct tty *, enum tty_code_code, int);
1352 void    tty_putcode2(struct tty *, enum tty_code_code, int, int);
1353 void    tty_puts(struct tty *, const char *);
1354 void    tty_putc(struct tty *, u_char);
1355 void    tty_pututf8(struct tty *, const struct grid_utf8 *);
1356 void    tty_init(struct tty *, int, char *);
1357 int     tty_resize(struct tty *);
1358 void    tty_start_tty(struct tty *);
1359 void    tty_stop_tty(struct tty *);
1360 void    tty_set_title(struct tty *, const char *);
1361 void    tty_update_mode(struct tty *, int);
1362 void    tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1363 int     tty_open(struct tty *, const char *, char **);
1364 void    tty_close(struct tty *);
1365 void    tty_free(struct tty *);
1366 void    tty_write(void (*)(
1367             struct tty *, const struct tty_ctx *), const struct tty_ctx *);
1368 void    tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1369 void    tty_cmd_cell(struct tty *, const struct tty_ctx *);
1370 void    tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1371 void    tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1372 void    tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1373 void    tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1374 void    tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1375 void    tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1376 void    tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1377 void    tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1378 void    tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1379 void    tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1380 void    tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1381 void    tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1382 void    tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1383
1384 /* tty-term.c */
1385 extern struct tty_terms tty_terms;
1386 extern struct tty_term_code_entry tty_term_codes[NTTYCODE];
1387 struct tty_term *tty_term_find(char *, int, const char *, char **);
1388 void             tty_term_free(struct tty_term *);
1389 int              tty_term_has(struct tty_term *, enum tty_code_code);
1390 const char      *tty_term_string(struct tty_term *, enum tty_code_code);
1391 const char      *tty_term_string1(struct tty_term *, enum tty_code_code, int);
1392 const char      *tty_term_string2(
1393                      struct tty_term *, enum tty_code_code, int, int);
1394 int              tty_term_number(struct tty_term *, enum tty_code_code);
1395 int              tty_term_flag(struct tty_term *, enum tty_code_code);
1396
1397 /* tty-keys.c */
1398 void    tty_keys_init(struct tty *);
1399 void    tty_keys_free(struct tty *);
1400 int     tty_keys_next(struct tty *);
1401
1402 /* paste.c */
1403 void             paste_init_stack(struct paste_stack *);
1404 void             paste_free_stack(struct paste_stack *);
1405 struct paste_buffer *paste_walk_stack(struct paste_stack *, uint *);
1406 struct paste_buffer *paste_get_top(struct paste_stack *);
1407 struct paste_buffer *paste_get_index(struct paste_stack *, u_int);
1408 int              paste_free_top(struct paste_stack *);
1409 int              paste_free_index(struct paste_stack *, u_int);
1410 void             paste_add(struct paste_stack *, char *, size_t, u_int);
1411 int              paste_replace(struct paste_stack *, u_int, char *, size_t);
1412 char            *paste_print(struct paste_buffer *, size_t);
1413
1414 /* clock.c */
1415 extern const char clock_table[14][5][5];
1416 void             clock_draw(struct screen_write_ctx *, int, int);
1417
1418 /* cmd-set-option.c */
1419 extern const struct set_option_entry set_option_table[];
1420 extern const struct set_option_entry set_session_option_table[];
1421 extern const struct set_option_entry set_window_option_table[];
1422 const char      *cmd_set_option_print(
1423                     const struct set_option_entry *, struct options_entry *);
1424
1425 /* cmd.c */
1426 int              cmd_pack_argv(int, char **, char *, size_t);
1427 int              cmd_unpack_argv(char *, size_t, int, char ***);
1428 void             cmd_free_argv(int, char **);
1429 struct cmd      *cmd_parse(int, char **, char **);
1430 int              cmd_exec(struct cmd *, struct cmd_ctx *);
1431 void             cmd_free(struct cmd *);
1432 size_t           cmd_print(struct cmd *, char *, size_t);
1433 struct session  *cmd_current_session(struct cmd_ctx *);
1434 struct client   *cmd_current_client(struct cmd_ctx *);
1435 struct client   *cmd_find_client(struct cmd_ctx *, const char *);
1436 struct session  *cmd_find_session(struct cmd_ctx *, const char *);
1437 struct winlink  *cmd_find_window(
1438                      struct cmd_ctx *, const char *, struct session **);
1439 int              cmd_find_index(
1440                      struct cmd_ctx *, const char *, struct session **);
1441 struct winlink  *cmd_find_pane(struct cmd_ctx *,
1442                      const char *, struct session **, struct window_pane **);
1443 char            *cmd_template_replace(char *, const char *, int);
1444 extern const struct cmd_entry *cmd_table[];
1445 extern const struct cmd_entry cmd_attach_session_entry;
1446 extern const struct cmd_entry cmd_bind_key_entry;
1447 extern const struct cmd_entry cmd_break_pane_entry;
1448 extern const struct cmd_entry cmd_capture_pane_entry;
1449 extern const struct cmd_entry cmd_choose_buffer_entry;
1450 extern const struct cmd_entry cmd_choose_client_entry;
1451 extern const struct cmd_entry cmd_choose_session_entry;
1452 extern const struct cmd_entry cmd_choose_window_entry;
1453 extern const struct cmd_entry cmd_clear_history_entry;
1454 extern const struct cmd_entry cmd_clock_mode_entry;
1455 extern const struct cmd_entry cmd_command_prompt_entry;
1456 extern const struct cmd_entry cmd_confirm_before_entry;
1457 extern const struct cmd_entry cmd_copy_buffer_entry;
1458 extern const struct cmd_entry cmd_copy_mode_entry;
1459 extern const struct cmd_entry cmd_delete_buffer_entry;
1460 extern const struct cmd_entry cmd_detach_client_entry;
1461 extern const struct cmd_entry cmd_display_message_entry;
1462 extern const struct cmd_entry cmd_display_panes_entry;
1463 extern const struct cmd_entry cmd_down_pane_entry;
1464 extern const struct cmd_entry cmd_find_window_entry;
1465 extern const struct cmd_entry cmd_has_session_entry;
1466 extern const struct cmd_entry cmd_if_shell_entry;
1467 extern const struct cmd_entry cmd_join_pane_entry;
1468 extern const struct cmd_entry cmd_kill_pane_entry;
1469 extern const struct cmd_entry cmd_kill_server_entry;
1470 extern const struct cmd_entry cmd_kill_session_entry;
1471 extern const struct cmd_entry cmd_kill_window_entry;
1472 extern const struct cmd_entry cmd_last_window_entry;
1473 extern const struct cmd_entry cmd_link_window_entry;
1474 extern const struct cmd_entry cmd_list_buffers_entry;
1475 extern const struct cmd_entry cmd_list_clients_entry;
1476 extern const struct cmd_entry cmd_list_commands_entry;
1477 extern const struct cmd_entry cmd_list_keys_entry;
1478 extern const struct cmd_entry cmd_list_panes_entry;
1479 extern const struct cmd_entry cmd_list_sessions_entry;
1480 extern const struct cmd_entry cmd_list_windows_entry;
1481 extern const struct cmd_entry cmd_load_buffer_entry;
1482 extern const struct cmd_entry cmd_lock_client_entry;
1483 extern const struct cmd_entry cmd_lock_server_entry;
1484 extern const struct cmd_entry cmd_lock_session_entry;
1485 extern const struct cmd_entry cmd_move_window_entry;
1486 extern const struct cmd_entry cmd_new_session_entry;
1487 extern const struct cmd_entry cmd_new_window_entry;
1488 extern const struct cmd_entry cmd_next_layout_entry;
1489 extern const struct cmd_entry cmd_next_window_entry;
1490 extern const struct cmd_entry cmd_paste_buffer_entry;
1491 extern const struct cmd_entry cmd_pipe_pane_entry;
1492 extern const struct cmd_entry cmd_previous_layout_entry;
1493 extern const struct cmd_entry cmd_previous_window_entry;
1494 extern const struct cmd_entry cmd_refresh_client_entry;
1495 extern const struct cmd_entry cmd_rename_session_entry;
1496 extern const struct cmd_entry cmd_rename_window_entry;
1497 extern const struct cmd_entry cmd_resize_pane_entry;
1498 extern const struct cmd_entry cmd_respawn_window_entry;
1499 extern const struct cmd_entry cmd_rotate_window_entry;
1500 extern const struct cmd_entry cmd_run_shell_entry;
1501 extern const struct cmd_entry cmd_save_buffer_entry;
1502 extern const struct cmd_entry cmd_select_layout_entry;
1503 extern const struct cmd_entry cmd_select_pane_entry;
1504 extern const struct cmd_entry cmd_select_window_entry;
1505 extern const struct cmd_entry cmd_send_keys_entry;
1506 extern const struct cmd_entry cmd_send_prefix_entry;
1507 extern const struct cmd_entry cmd_server_info_entry;
1508 extern const struct cmd_entry cmd_set_buffer_entry;
1509 extern const struct cmd_entry cmd_set_environment_entry;
1510 extern const struct cmd_entry cmd_set_option_entry;
1511 extern const struct cmd_entry cmd_set_window_option_entry;
1512 extern const struct cmd_entry cmd_show_buffer_entry;
1513 extern const struct cmd_entry cmd_show_environment_entry;
1514 extern const struct cmd_entry cmd_show_messages_entry;
1515 extern const struct cmd_entry cmd_show_options_entry;
1516 extern const struct cmd_entry cmd_show_window_options_entry;
1517 extern const struct cmd_entry cmd_source_file_entry;
1518 extern const struct cmd_entry cmd_split_window_entry;
1519 extern const struct cmd_entry cmd_start_server_entry;
1520 extern const struct cmd_entry cmd_suspend_client_entry;
1521 extern const struct cmd_entry cmd_swap_pane_entry;
1522 extern const struct cmd_entry cmd_swap_window_entry;
1523 extern const struct cmd_entry cmd_switch_client_entry;
1524 extern const struct cmd_entry cmd_unbind_key_entry;
1525 extern const struct cmd_entry cmd_unlink_window_entry;
1526 extern const struct cmd_entry cmd_up_pane_entry;
1527
1528 /* cmd-list.c */
1529 struct cmd_list *cmd_list_parse(int, char **, char **);
1530 int              cmd_list_exec(struct cmd_list *, struct cmd_ctx *);
1531 void             cmd_list_free(struct cmd_list *);
1532 size_t           cmd_list_print(struct cmd_list *, char *, size_t);
1533
1534 /* cmd-string.c */
1535 int     cmd_string_parse(const char *, struct cmd_list **, char **);
1536
1537 /* cmd-generic.c */
1538 size_t  cmd_prarg(char *, size_t, const char *, char *);
1539 int     cmd_check_flag(uint64_t, int);
1540 void    cmd_set_flag(uint64_t *, int);
1541 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1542 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1543 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1544 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1545 void    cmd_target_init(struct cmd *, int);
1546 int     cmd_target_parse(struct cmd *, int, char **, char **);
1547 void    cmd_target_free(struct cmd *);
1548 size_t  cmd_target_print(struct cmd *, char *, size_t);
1549 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1550 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1551 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1552 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1553 void    cmd_srcdst_init(struct cmd *, int);
1554 int     cmd_srcdst_parse(struct cmd *, int, char **, char **);
1555 void    cmd_srcdst_free(struct cmd *);
1556 size_t  cmd_srcdst_print(struct cmd *, char *, size_t);
1557 #define CMD_BUFFER_PANE_USAGE "[-b buffer-index] [-t target-pane]"
1558 #define CMD_BUFFER_WINDOW_USAGE "[-b buffer-index] [-t target-window]"
1559 #define CMD_BUFFER_SESSION_USAGE "[-b buffer-index] [-t target-session]"
1560 #define CMD_BUFFER_CLIENT_USAGE "[-b buffer-index] [-t target-client]"
1561 void    cmd_buffer_init(struct cmd *, int);
1562 int     cmd_buffer_parse(struct cmd *, int, char **, char **);
1563 void    cmd_buffer_free(struct cmd *);
1564 size_t  cmd_buffer_print(struct cmd *, char *, size_t);
1565
1566 /* client.c */
1567 struct imsgbuf *client_init(char *, int, int);
1568 __dead void     client_main(void);
1569
1570 /* key-bindings.c */
1571 extern struct key_bindings key_bindings;
1572 int      key_bindings_cmp(struct key_binding *, struct key_binding *);
1573 SPLAY_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1574 struct key_binding *key_bindings_lookup(int);
1575 void     key_bindings_add(int, int, struct cmd_list *);
1576 void     key_bindings_remove(int);
1577 void     key_bindings_clean(void);
1578 void     key_bindings_init(void);
1579 void     key_bindings_dispatch(struct key_binding *, struct client *);
1580 void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
1581 void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
1582 void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
1583
1584 /* key-string.c */
1585 int      key_string_lookup_string(const char *);
1586 const char *key_string_lookup_key(int);
1587
1588 /* server.c */
1589 extern struct clients clients;
1590 extern struct clients dead_clients;
1591 int      server_start(char *);
1592 void     server_update_socket(void);
1593
1594 /* server-client.c */
1595 void     server_client_create(int);
1596 void     server_client_lost(struct client *);
1597 void     server_client_callback(int, short, void *);
1598 void     server_client_status_timer(void);
1599 void     server_client_loop(void);
1600
1601 /* server-window.c */
1602 void     server_window_loop(void);
1603
1604 /* server-fn.c */
1605 void     server_fill_environ(struct session *, struct environ *);
1606 void     server_write_client(
1607              struct client *, enum msgtype, const void *, size_t);
1608 void     server_write_session(
1609              struct session *, enum msgtype, const void *, size_t);
1610 void     server_redraw_client(struct client *);
1611 void     server_status_client(struct client *);
1612 void     server_redraw_session(struct session *);
1613 void     server_redraw_session_group(struct session *);
1614 void     server_status_session(struct session *);
1615 void     server_status_session_group(struct session *);
1616 void     server_redraw_window(struct window *);
1617 void     server_redraw_window_borders(struct window *);
1618 void     server_status_window(struct window *);
1619 void     server_lock(void);
1620 void     server_lock_session(struct session *);
1621 void     server_lock_client(struct client *);
1622 int      server_unlock(const char *);
1623 void     server_kill_window(struct window *);
1624 int      server_link_window(struct session *,
1625              struct winlink *, struct session *, int, int, int, char **);
1626 void     server_unlink_window(struct session *, struct winlink *);
1627 void     server_destroy_pane(struct window_pane *);
1628 void     server_destroy_session_group(struct session *);
1629 void     server_destroy_session(struct session *);
1630 void     server_set_identify(struct client *);
1631 void     server_clear_identify(struct client *);
1632 void     server_update_event(struct client *);
1633
1634 /* status.c */
1635 int      status_redraw(struct client *);
1636 char    *status_replace(
1637              struct client *, struct winlink *, const char *, time_t, int);
1638 void printflike2 status_message_set(struct client *, const char *, ...);
1639 void     status_message_clear(struct client *);
1640 int      status_message_redraw(struct client *);
1641 void     status_prompt_set(struct client *, const char *,
1642              int (*)(void *, const char *), void (*)(void *), void *, int);
1643 void     status_prompt_clear(struct client *);
1644 int      status_prompt_redraw(struct client *);
1645 void     status_prompt_key(struct client *, int);
1646 void     status_prompt_update(struct client *, const char *);
1647
1648 /* resize.c */
1649 void     recalculate_sizes(void);
1650
1651 /* input.c */
1652 void     input_init(struct window_pane *);
1653 void     input_free(struct window_pane *);
1654 void     input_parse(struct window_pane *);
1655
1656 /* input-key.c */
1657 void     input_key(struct window_pane *, int);
1658 void     input_mouse(struct window_pane *, struct mouse_event *);
1659
1660 /* xterm-keys.c */
1661 char    *xterm_keys_lookup(int);
1662 int      xterm_keys_find(const char *, size_t, size_t *, int *);
1663
1664 /* colour.c */
1665 void     colour_set_fg(struct grid_cell *, int);
1666 void     colour_set_bg(struct grid_cell *, int);
1667 const char *colour_tostring(int);
1668 int      colour_fromstring(const char *);
1669 u_char   colour_256to16(u_char);
1670 u_char   colour_256to88(u_char);
1671
1672 /* attributes.c */
1673 const char *attributes_tostring(u_char);
1674 int      attributes_fromstring(const char *);
1675
1676 /* grid.c */
1677 extern const struct grid_cell grid_default_cell;
1678 struct grid *grid_create(u_int, u_int, u_int);
1679 void     grid_destroy(struct grid *);
1680 int      grid_compare(struct grid *, struct grid *);
1681 void     grid_collect_history(struct grid *);
1682 void     grid_scroll_history(struct grid *);
1683 void     grid_scroll_history_region(struct grid *, u_int, u_int);
1684 void     grid_expand_line(struct grid *, u_int, u_int);
1685 void     grid_expand_line_utf8(struct grid *, u_int, u_int);
1686 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
1687 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
1688 void     grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
1689 const struct grid_utf8 *grid_peek_utf8(struct grid *, u_int, u_int);
1690 struct grid_utf8 *grid_get_utf8(struct grid *, u_int, u_int);
1691 void     grid_set_utf8(struct grid *, u_int, u_int, const struct grid_utf8 *);
1692 void     grid_clear(struct grid *, u_int, u_int, u_int, u_int);
1693 void     grid_clear_lines(struct grid *, u_int, u_int);
1694 void     grid_move_lines(struct grid *, u_int, u_int, u_int);
1695 void     grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
1696 char    *grid_string_cells(struct grid *, u_int, u_int, u_int);
1697 void     grid_duplicate_lines(
1698              struct grid *, u_int, struct grid *, u_int, u_int);
1699
1700 /* grid-utf8.c */
1701 size_t   grid_utf8_size(const struct grid_utf8 *);
1702 size_t   grid_utf8_copy(const struct grid_utf8 *, char *, size_t);
1703 void     grid_utf8_set(struct grid_utf8 *, const struct utf8_data *);
1704 int      grid_utf8_append(struct grid_utf8 *, const struct utf8_data *);
1705 int      grid_utf8_compare(const struct grid_utf8 *, const struct grid_utf8 *);
1706
1707 /* grid-view.c */
1708 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
1709 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
1710 void     grid_view_set_cell(
1711              struct grid *, u_int, u_int, const struct grid_cell *);
1712 const struct grid_utf8 *grid_view_peek_utf8(struct grid *, u_int, u_int);
1713 struct grid_utf8 *grid_view_get_utf8(struct grid *, u_int, u_int);
1714 void     grid_view_set_utf8(
1715              struct grid *, u_int, u_int, const struct grid_utf8 *);
1716 void     grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
1717 void     grid_view_scroll_region_up(struct grid *, u_int, u_int);
1718 void     grid_view_scroll_region_down(struct grid *, u_int, u_int);
1719 void     grid_view_insert_lines(struct grid *, u_int, u_int);
1720 void     grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
1721 void     grid_view_delete_lines(struct grid *, u_int, u_int);
1722 void     grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
1723 void     grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
1724 void     grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
1725 char    *grid_view_string_cells(struct grid *, u_int, u_int, u_int);
1726
1727 /* screen-write.c */
1728 void     screen_write_start(
1729              struct screen_write_ctx *, struct window_pane *, struct screen *);
1730 void     screen_write_stop(struct screen_write_ctx *);
1731 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
1732 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
1733              ssize_t, struct grid_cell *, int, const char *, ...);
1734 size_t printflike2 screen_write_strlen(int, const char *, ...);
1735 void printflike3 screen_write_puts(struct screen_write_ctx *,
1736              struct grid_cell *, const char *, ...);
1737 void printflike5 screen_write_nputs(struct screen_write_ctx *,
1738              ssize_t, struct grid_cell *, int, const char *, ...);
1739 void     screen_write_vnputs(struct screen_write_ctx *,
1740              ssize_t, struct grid_cell *, int, const char *, va_list);
1741 void     screen_write_parsestyle(
1742              struct grid_cell *, struct grid_cell *, const char *);
1743 void     screen_write_putc(
1744              struct screen_write_ctx *, struct grid_cell *, u_char);
1745 void     screen_write_copy(struct screen_write_ctx *,
1746              struct screen *, u_int, u_int, u_int, u_int);
1747 void     screen_write_backspace(struct screen_write_ctx *);
1748 void     screen_write_cursorup(struct screen_write_ctx *, u_int);
1749 void     screen_write_cursordown(struct screen_write_ctx *, u_int);
1750 void     screen_write_cursorright(struct screen_write_ctx *, u_int);
1751 void     screen_write_cursorleft(struct screen_write_ctx *, u_int);
1752 void     screen_write_alignmenttest(struct screen_write_ctx *);
1753 void     screen_write_insertcharacter(struct screen_write_ctx *, u_int);
1754 void     screen_write_deletecharacter(struct screen_write_ctx *, u_int);
1755 void     screen_write_insertline(struct screen_write_ctx *, u_int);
1756 void     screen_write_deleteline(struct screen_write_ctx *, u_int);
1757 void     screen_write_clearline(struct screen_write_ctx *);
1758 void     screen_write_clearendofline(struct screen_write_ctx *);
1759 void     screen_write_clearstartofline(struct screen_write_ctx *);
1760 void     screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
1761 void     screen_write_cursormode(struct screen_write_ctx *, int);
1762 void     screen_write_reverseindex(struct screen_write_ctx *);
1763 void     screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
1764 void     screen_write_insertmode(struct screen_write_ctx *, int);
1765 void     screen_write_mousemode(struct screen_write_ctx *, int);
1766 void     screen_write_linefeed(struct screen_write_ctx *, int);
1767 void     screen_write_linefeedscreen(struct screen_write_ctx *, int);
1768 void     screen_write_carriagereturn(struct screen_write_ctx *);
1769 void     screen_write_kcursormode(struct screen_write_ctx *, int);
1770 void     screen_write_kkeypadmode(struct screen_write_ctx *, int);
1771 void     screen_write_clearendofscreen(struct screen_write_ctx *);
1772 void     screen_write_clearstartofscreen(struct screen_write_ctx *);
1773 void     screen_write_clearscreen(struct screen_write_ctx *);
1774 void     screen_write_cell(struct screen_write_ctx *,
1775              const struct grid_cell *, const struct utf8_data *);
1776
1777 /* screen-redraw.c */
1778 void     screen_redraw_screen(struct client *, int, int);
1779 void     screen_redraw_pane(struct client *, struct window_pane *);
1780
1781 /* screen.c */
1782 void     screen_init(struct screen *, u_int, u_int, u_int);
1783 void     screen_reinit(struct screen *);
1784 void     screen_free(struct screen *);
1785 void     screen_reset_tabs(struct screen *);
1786 void     screen_set_title(struct screen *, const char *);
1787 void     screen_resize(struct screen *, u_int, u_int);
1788 void     screen_set_selection(struct screen *,
1789              u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
1790 void     screen_clear_selection(struct screen *);
1791 int      screen_check_selection(struct screen *, u_int, u_int);
1792
1793 /* window.c */
1794 extern struct windows windows;
1795 int              window_cmp(struct window *, struct window *);
1796 int              winlink_cmp(struct winlink *, struct winlink *);
1797 RB_PROTOTYPE(windows, window, entry, window_cmp);
1798 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
1799 struct winlink  *winlink_find_by_index(struct winlinks *, int);
1800 struct winlink  *winlink_find_by_window(struct winlinks *, struct window *);
1801 int              winlink_next_index(struct winlinks *, int);
1802 u_int            winlink_count(struct winlinks *);
1803 struct winlink  *winlink_add(struct winlinks *, struct window *, int);
1804 void             winlink_remove(struct winlinks *, struct winlink *);
1805 struct winlink  *winlink_next(struct winlink *);
1806 struct winlink  *winlink_previous(struct winlink *);
1807 struct winlink  *winlink_next_by_number(struct winlink *, int);
1808 struct winlink  *winlink_previous_by_number(struct winlink *, int);
1809 void             winlink_stack_push(struct winlink_stack *, struct winlink *);
1810 void             winlink_stack_remove(struct winlink_stack *, struct winlink *);
1811 int              window_index(struct window *, u_int *);
1812 struct window   *window_create1(u_int, u_int);
1813 struct window   *window_create(const char *, const char *, const char *,
1814                      const char *, struct environ *, struct termios *,
1815                      u_int, u_int, u_int, char **);
1816 void             window_destroy(struct window *);
1817 void             window_set_active_at(struct window *, u_int, u_int);
1818 void             window_set_active_pane(struct window *, struct window_pane *);
1819 struct window_pane *window_add_pane(struct window *, u_int);
1820 void             window_resize(struct window *, u_int, u_int);
1821 void             window_remove_pane(struct window *, struct window_pane *);
1822 struct window_pane *window_pane_at_index(struct window *, u_int);
1823 u_int            window_pane_index(struct window *, struct window_pane *);
1824 u_int            window_count_panes(struct window *);
1825 void             window_destroy_panes(struct window *);
1826 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
1827 void             window_pane_destroy(struct window_pane *);
1828 int              window_pane_spawn(struct window_pane *, const char *,
1829                      const char *, const char *, struct environ *,
1830                      struct termios *, char **);
1831 void             window_pane_resize(struct window_pane *, u_int, u_int);
1832 void             window_pane_alternate_on(
1833                      struct window_pane *, struct grid_cell *);
1834 void             window_pane_alternate_off(
1835                      struct window_pane *, struct grid_cell *);
1836 int              window_pane_set_mode(
1837                      struct window_pane *, const struct window_mode *);
1838 void             window_pane_reset_mode(struct window_pane *);
1839 void             window_pane_key(struct window_pane *, struct session *, int);
1840 void             window_pane_mouse(struct window_pane *,
1841                      struct session *, struct mouse_event *);
1842 int              window_pane_visible(struct window_pane *);
1843 char            *window_pane_search(
1844                      struct window_pane *, const char *, u_int *);
1845 struct window_pane *window_pane_find_up(struct window_pane *);
1846 struct window_pane *window_pane_find_down(struct window_pane *);
1847 struct window_pane *window_pane_find_left(struct window_pane *);
1848 struct window_pane *window_pane_find_right(struct window_pane *);
1849
1850 /* layout.c */
1851 struct layout_cell *layout_create_cell(struct layout_cell *);
1852 void             layout_free_cell(struct layout_cell *);
1853 void             layout_print_cell(struct layout_cell *, const char *, u_int);
1854 void             layout_set_size(
1855                      struct layout_cell *, u_int, u_int, u_int, u_int);
1856 void             layout_make_leaf(
1857                      struct layout_cell *, struct window_pane *);
1858 void             layout_make_node(struct layout_cell *, enum layout_type);
1859 void             layout_fix_offsets(struct layout_cell *);
1860 void             layout_fix_panes(struct window *, u_int, u_int);
1861 u_int            layout_resize_check(struct layout_cell *, enum layout_type);
1862 void             layout_resize_adjust(
1863                      struct layout_cell *, enum layout_type, int);
1864 void             layout_init(struct window *);
1865 void             layout_free(struct window *);
1866 void             layout_resize(struct window *, u_int, u_int);
1867 void             layout_resize_pane(
1868                      struct window_pane *, enum layout_type, int);
1869 void             layout_assign_pane(struct layout_cell *, struct window_pane *);
1870 struct layout_cell *layout_split_pane(
1871                      struct window_pane *, enum layout_type, int);
1872 void             layout_close_pane(struct window_pane *);
1873
1874 /* layout-set.c */
1875 const char      *layout_set_name(u_int);
1876 int              layout_set_lookup(const char *);
1877 u_int            layout_set_select(struct window *, u_int);
1878 u_int            layout_set_next(struct window *);
1879 u_int            layout_set_previous(struct window *);
1880 void             layout_set_active_changed(struct window *);
1881
1882 /* layout-string.c */
1883 struct layout_cell *layout_find_string(struct window *, const char *);
1884
1885 /* window-clock.c */
1886 extern const struct window_mode window_clock_mode;
1887
1888 /* window-copy.c */
1889 extern const struct window_mode window_copy_mode;
1890 void             window_copy_init_from_pane(struct window_pane *);
1891 void             window_copy_init_for_output(struct window_pane *);
1892 void             window_copy_add(struct window_pane *, const char *, ...);
1893 void             window_copy_vadd(struct window_pane *, const char *, va_list);
1894 void             window_copy_pageup(struct window_pane *);
1895
1896 /* window-choose.c */
1897 extern const struct window_mode window_choose_mode;
1898 void             window_choose_vadd(
1899                      struct window_pane *, int, const char *, va_list);
1900 void printflike3 window_choose_add(
1901                      struct window_pane *, int, const char *, ...);
1902 void             window_choose_ready(struct window_pane *,
1903                      u_int, void (*)(void *, int), void (*)(void *), void *);
1904
1905 /* names.c */
1906 void             queue_window_name(struct window *);
1907 char            *default_window_name(struct window *);
1908
1909 /* signal.c */
1910 void set_signals(void(*handler)(int, short, unused void *));
1911 void clear_signals(void);
1912
1913 /* session.c */
1914 extern struct sessions sessions;
1915 extern struct sessions dead_sessions;
1916 extern struct session_groups session_groups;
1917 struct session  *session_find(const char *);
1918 struct session  *session_create(const char *, const char *, const char *,
1919                      struct environ *, struct termios *, int, u_int, u_int,
1920                      char **);
1921 void             session_destroy(struct session *);
1922 int              session_index(struct session *, u_int *);
1923 struct winlink  *session_new(struct session *,
1924                      const char *, const char *, const char *, int, char **);
1925 struct winlink  *session_attach(
1926                      struct session *, struct window *, int, char **);
1927 int              session_detach(struct session *, struct winlink *);
1928 struct winlink*  session_has(struct session *, struct window *);
1929 int              session_next(struct session *, int);
1930 int              session_previous(struct session *, int);
1931 int              session_select(struct session *, int);
1932 int              session_last(struct session *);
1933 struct session_group *session_group_find(struct session *);
1934 u_int            session_group_index(struct session_group *);
1935 void             session_group_add(struct session *, struct session *);
1936 void             session_group_remove(struct session *);
1937 void             session_group_synchronize_to(struct session *);
1938 void             session_group_synchronize_from(struct session *);
1939 void             session_group_synchronize1(struct session *, struct session *);
1940
1941 /* utf8.c */
1942 void    utf8_build(void);
1943 int     utf8_open(struct utf8_data *, u_char);
1944 int     utf8_append(struct utf8_data *, u_char);
1945
1946 /* procname.c */
1947 char   *get_proc_name(int, char *);
1948
1949 /* log.c */
1950 void             log_open_tty(int);
1951 void             log_open_file(int, const char *);
1952 void             log_close(void);
1953 void printflike1 log_warn(const char *, ...);
1954 void printflike1 log_warnx(const char *, ...);
1955 void printflike1 log_info(const char *, ...);
1956 void printflike1 log_debug(const char *, ...);
1957 void printflike1 log_debug2(const char *, ...);
1958 __dead void printflike1 log_fatal(const char *, ...);
1959 __dead void printflike1 log_fatalx(const char *, ...);
1960
1961 /* xmalloc.c */
1962 char            *xstrdup(const char *);
1963 void            *xcalloc(size_t, size_t);
1964 void            *xmalloc(size_t);
1965 void            *xrealloc(void *, size_t, size_t);
1966 void             xfree(void *);
1967 int printflike2  xasprintf(char **, const char *, ...);
1968 int              xvasprintf(char **, const char *, va_list);
1969 int printflike3  xsnprintf(char *, size_t, const char *, ...);
1970 int              xvsnprintf(char *, size_t, const char *, va_list);
1971
1972 #endif /* TMUX_H */