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 6
  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 writing to a tty. */
  63 #define BACKOFF_THRESHOLD 16384
  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 ENVIRON_LENGTH 1024     /* environment variable length */
  72
  73 /*
  74  * UTF-8 data size. This must be big enough to hold combined characters as well
  75  * as single.
  76  */
  77 #define UTF8_SIZE 9
  78
  79 /* Fatal errors. */
  80 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
  81 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
  82
  83 /* Definition to shut gcc up about unused arguments. */
  84 #define unused __attribute__ ((unused))
  85
  86 /* Attribute to make gcc check printf-like arguments. */
  87 #define printflike1 __attribute__ ((format (printf, 1, 2)))
  88 #define printflike2 __attribute__ ((format (printf, 2, 3)))
  89 #define printflike3 __attribute__ ((format (printf, 3, 4)))
  90 #define printflike4 __attribute__ ((format (printf, 4, 5)))
  91 #define printflike5 __attribute__ ((format (printf, 5, 6)))
  92
  93 /* Number of items in array. */
  94 #ifndef nitems
  95 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
  96 #endif
  97
  98 /* Bell option values. */
  99 #define BELL_NONE 0
 100 #define BELL_ANY 1
 101 #define BELL_CURRENT 2
 102
 103 /* Special key codes. */
 104 #define KEYC_NONE 0xfff
 105 #define KEYC_BASE 0x1000
 106
 107 /* Key modifier bits. */
 108 #define KEYC_ESCAPE 0x2000
 109 #define KEYC_CTRL 0x4000
 110 #define KEYC_SHIFT 0x8000
 111 #define KEYC_PREFIX 0x10000
 112
 113 /* Mask to obtain key w/o modifiers */
 114 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_PREFIX)
 115 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
 116
 117 /* Other key codes. */
 118 enum key_code {
 119         /* Mouse key. */
 120         KEYC_MOUSE = KEYC_BASE,
 121
 122         /* Backspace key. */
 123         KEYC_BSPACE,
 124
 125         /* Function keys. */
 126         KEYC_F1,
 127         KEYC_F2,
 128         KEYC_F3,
 129         KEYC_F4,
 130         KEYC_F5,
 131         KEYC_F6,
 132         KEYC_F7,
 133         KEYC_F8,
 134         KEYC_F9,
 135         KEYC_F10,
 136         KEYC_F11,
 137         KEYC_F12,
 138         KEYC_F13,
 139         KEYC_F14,
 140         KEYC_F15,
 141         KEYC_F16,
 142         KEYC_F17,
 143         KEYC_F18,
 144         KEYC_F19,
 145         KEYC_F20,
 146         KEYC_IC,
 147         KEYC_DC,
 148         KEYC_HOME,
 149         KEYC_END,
 150         KEYC_NPAGE,
 151         KEYC_PPAGE,
 152         KEYC_BTAB,
 153
 154         /* Arrow keys. */
 155         KEYC_UP,
 156         KEYC_DOWN,
 157         KEYC_LEFT,
 158         KEYC_RIGHT,
 159
 160         /* Numeric keypad. */
 161         KEYC_KP_SLASH,
 162         KEYC_KP_STAR,
 163         KEYC_KP_MINUS,
 164         KEYC_KP_SEVEN,
 165         KEYC_KP_EIGHT,
 166         KEYC_KP_NINE,
 167         KEYC_KP_PLUS,
 168         KEYC_KP_FOUR,
 169         KEYC_KP_FIVE,
 170         KEYC_KP_SIX,
 171         KEYC_KP_ONE,
 172         KEYC_KP_TWO,
 173         KEYC_KP_THREE,
 174         KEYC_KP_ENTER,
 175         KEYC_KP_ZERO,
 176         KEYC_KP_PERIOD,
 177 };
 178
 179 /* Termcap codes. */
 180 enum tty_code_code {
 181         TTYC_AX = 0,
 182         TTYC_ACSC,      /* acs_chars, ac */
 183         TTYC_BEL,       /* bell, bl */
 184         TTYC_BLINK,     /* enter_blink_mode, mb */
 185         TTYC_BOLD,      /* enter_bold_mode, md */
 186         TTYC_CIVIS,     /* cursor_invisible, vi */
 187         TTYC_CLEAR,     /* clear_screen, cl */
 188         TTYC_CNORM,     /* cursor_normal, ve */
 189         TTYC_COLORS,    /* max_colors, Co */
 190         TTYC_CSR,       /* change_scroll_region, cs */
 191         TTYC_CUB,       /* parm_left_cursor, LE */
 192         TTYC_CUB1,      /* cursor_left, le */
 193         TTYC_CUD,       /* parm_down_cursor, DO */
 194         TTYC_CUD1,      /* cursor_down, do */
 195         TTYC_CUF,       /* parm_right_cursor, RI */
 196         TTYC_CUF1,      /* cursor_right, nd */
 197         TTYC_CUP,       /* cursor_address, cm */
 198         TTYC_CUU,       /* parm_up_cursor, UP */
 199         TTYC_CUU1,      /* cursor_up, up */
 200         TTYC_DCH,       /* parm_dch, DC */
 201         TTYC_DCH1,      /* delete_character, dc */
 202         TTYC_DIM,       /* enter_dim_mode, mh */
 203         TTYC_DL,        /* parm_delete_line, DL */
 204         TTYC_DL1,       /* delete_line, dl */
 205         TTYC_EL,        /* clr_eol, ce */
 206         TTYC_EL1,       /* clr_bol, cb */
 207         TTYC_ENACS,     /* ena_acs, eA */
 208         TTYC_HOME,      /* cursor_home, ho */
 209         TTYC_HPA,       /* column_address, ch */
 210         TTYC_ICH,       /* parm_ich, IC */
 211         TTYC_ICH1,      /* insert_character, ic */
 212         TTYC_IL,        /* parm_insert_line, IL */
 213         TTYC_IL1,       /* insert_line, il */
 214         TTYC_INVIS,     /* enter_secure_mode, mk */
 215         TTYC_IS1,       /* init_1string, i1 */
 216         TTYC_IS2,       /* init_2string, i2 */
 217         TTYC_IS3,       /* init_3string, i3 */
 218         TTYC_KCBT,      /* key_btab, kB */
 219         TTYC_KCUB1,     /* key_left, kl */
 220         TTYC_KCUD1,     /* key_down, kd */
 221         TTYC_KCUF1,     /* key_right, kr */
 222         TTYC_KCUU1,     /* key_up, ku */
 223         TTYC_KDC2,
 224         TTYC_KDC3,
 225         TTYC_KDC4,
 226         TTYC_KDC5,
 227         TTYC_KDC6,
 228         TTYC_KDC7,
 229         TTYC_KDCH1,     /* key_dc, kD */
 230         TTYC_KDN2,
 231         TTYC_KDN3,
 232         TTYC_KDN4,
 233         TTYC_KDN5,
 234         TTYC_KDN6,
 235         TTYC_KDN7,
 236         TTYC_KEND,      /* key_end, ke */
 237         TTYC_KEND2,
 238         TTYC_KEND3,
 239         TTYC_KEND4,
 240         TTYC_KEND5,
 241         TTYC_KEND6,
 242         TTYC_KEND7,
 243         TTYC_KF1,       /* key_f1, k1 */
 244         TTYC_KF10,      /* key_f10, k; */
 245         TTYC_KF11,      /* key_f11, F1 */
 246         TTYC_KF12,      /* key_f12, F2 */
 247         TTYC_KF13,      /* key_f13, F3 */
 248         TTYC_KF14,      /* key_f14, F4 */
 249         TTYC_KF15,      /* key_f15, F5 */
 250         TTYC_KF16,      /* key_f16, F6 */
 251         TTYC_KF17,      /* key_f17, F7 */
 252         TTYC_KF18,      /* key_f18, F8 */
 253         TTYC_KF19,      /* key_f19, F9 */
 254         TTYC_KF2,       /* key_f2, k2 */
 255         TTYC_KF20,      /* key_f20, F10 */
 256         TTYC_KF3,       /* key_f3, k3 */
 257         TTYC_KF4,       /* key_f4, k4 */
 258         TTYC_KF5,       /* key_f5, k5 */
 259         TTYC_KF6,       /* key_f6, k6 */
 260         TTYC_KF7,       /* key_f7, k7 */
 261         TTYC_KF8,       /* key_f8, k8 */
 262         TTYC_KF9,       /* key_f9, k9 */
 263         TTYC_KHOM2,
 264         TTYC_KHOM3,
 265         TTYC_KHOM4,
 266         TTYC_KHOM5,
 267         TTYC_KHOM6,
 268         TTYC_KHOM7,
 269         TTYC_KHOME,     /* key_home, kh */
 270         TTYC_KIC2,
 271         TTYC_KIC3,
 272         TTYC_KIC4,
 273         TTYC_KIC5,
 274         TTYC_KIC6,
 275         TTYC_KIC7,
 276         TTYC_KICH1,     /* key_ic, kI */
 277         TTYC_KLFT2,
 278         TTYC_KLFT3,
 279         TTYC_KLFT4,
 280         TTYC_KLFT5,
 281         TTYC_KLFT6,
 282         TTYC_KLFT7,
 283         TTYC_KMOUS,     /* key_mouse, Km */
 284         TTYC_KNP,       /* key_npage, kN */
 285         TTYC_KNXT2,
 286         TTYC_KNXT3,
 287         TTYC_KNXT4,
 288         TTYC_KNXT5,
 289         TTYC_KNXT6,
 290         TTYC_KNXT7,
 291         TTYC_KPP,       /* key_ppage, kP */
 292         TTYC_KPRV2,
 293         TTYC_KPRV3,
 294         TTYC_KPRV4,
 295         TTYC_KPRV5,
 296         TTYC_KPRV6,
 297         TTYC_KPRV7,
 298         TTYC_KRIT2,
 299         TTYC_KRIT3,
 300         TTYC_KRIT4,
 301         TTYC_KRIT5,
 302         TTYC_KRIT6,
 303         TTYC_KRIT7,
 304         TTYC_KUP2,
 305         TTYC_KUP3,
 306         TTYC_KUP4,
 307         TTYC_KUP5,
 308         TTYC_KUP6,
 309         TTYC_KUP7,
 310         TTYC_OP,        /* orig_pair, op */
 311         TTYC_REV,       /* enter_reverse_mode, mr */
 312         TTYC_RI,        /* scroll_reverse, sr */
 313         TTYC_RMACS,     /* exit_alt_charset_mode */
 314         TTYC_RMCUP,     /* exit_ca_mode, te */
 315         TTYC_RMIR,      /* exit_insert_mode, ei */
 316         TTYC_RMKX,      /* keypad_local, ke */
 317         TTYC_SETAB,     /* set_a_background, AB */
 318         TTYC_SETAF,     /* set_a_foreground, AF */
 319         TTYC_SGR0,      /* exit_attribute_mode, me */
 320         TTYC_SMACS,     /* enter_alt_charset_mode, as */
 321         TTYC_SMCUP,     /* enter_ca_mode, ti */
 322         TTYC_SMIR,      /* enter_insert_mode, im */
 323         TTYC_SMKX,      /* keypad_xmit, ks */
 324         TTYC_SMSO,      /* enter_standout_mode, so */
 325         TTYC_SMUL,      /* enter_underline_mode, us */
 326         TTYC_VPA,       /* row_address, cv */
 327         TTYC_XENL,      /* eat_newline_glitch, xn */
 328 };
 329 #define NTTYCODE (TTYC_XENL + 1)
 330
 331 /* Termcap types. */
 332 enum tty_code_type {
 333         TTYCODE_NONE = 0,
 334         TTYCODE_STRING,
 335         TTYCODE_NUMBER,
 336         TTYCODE_FLAG,
 337 };
 338
 339 /* Termcap code. */
 340 struct tty_code {
 341         enum tty_code_type      type;
 342         union {
 343                 char           *string;
 344                 int             number;
 345                 int             flag;
 346         } value;
 347 };
 348
 349 /* Entry in terminal code table. */
 350 struct tty_term_code_entry {
 351         enum tty_code_code      code;
 352         enum tty_code_type      type;
 353         const char             *name;
 354 };
 355
 356 /* Message codes. */
 357 enum msgtype {
 358         MSG_COMMAND,
 359         MSG_DETACH,
 360         MSG_ERROR,
 361         MSG_EXIT,
 362         MSG_EXITED,
 363         MSG_EXITING,
 364         MSG_IDENTIFY,
 365         MSG_PRINT,
 366         MSG_READY,
 367         MSG_RESIZE,
 368         MSG_SHUTDOWN,
 369         MSG_SUSPEND,
 370         MSG_VERSION,
 371         MSG_WAKEUP,
 372         MSG_ENVIRON,
 373         MSG_UNLOCK,
 374         MSG_LOCK,
 375         MSG_SHELL,
 376         MSG_STDERR,
 377         MSG_STDOUT,
 378 };
 379
 380 /*
 381  * Message data.
 382  *
 383  * Don't forget to bump PROTOCOL_VERSION if any of these change!
 384  */
 385 struct msg_command_data {
 386         pid_t           pid;    /* PID from $TMUX or -1 */
 387         int             idx;    /* index from $TMUX or -1 */
 388
 389         int             argc;
 390         char            argv[COMMAND_LENGTH];
 391 };
 392
 393 struct msg_identify_data {
 394         char            cwd[MAXPATHLEN];
 395
 396         char            term[TERMINAL_LENGTH];
 397
 398 #define IDENTIFY_UTF8 0x1
 399 #define IDENTIFY_256COLOURS 0x2
 400 #define IDENTIFY_88COLOURS 0x4
 401         int             flags;
 402 };
 403
 404 struct msg_lock_data {
 405         char            cmd[COMMAND_LENGTH];
 406 };
 407
 408 struct msg_environ_data {
 409         char            var[ENVIRON_LENGTH];
 410 };
 411
 412 struct msg_shell_data {
 413         char            shell[MAXPATHLEN];
 414 };
 415
 416 struct msg_exit_data {
 417         int             retcode;
 418 };
 419
 420 /* Mode key commands. */
 421 enum mode_key_cmd {
 422         MODEKEY_NONE,
 423         MODEKEY_OTHER,
 424
 425         /* Editing keys. */
 426         MODEKEYEDIT_BACKSPACE,
 427         MODEKEYEDIT_CANCEL,
 428         MODEKEYEDIT_COMPLETE,
 429         MODEKEYEDIT_CURSORLEFT,
 430         MODEKEYEDIT_CURSORRIGHT,
 431         MODEKEYEDIT_DELETE,
 432         MODEKEYEDIT_DELETELINE,
 433         MODEKEYEDIT_DELETETOENDOFLINE,
 434         MODEKEYEDIT_ENDOFLINE,
 435         MODEKEYEDIT_ENTER,
 436         MODEKEYEDIT_HISTORYDOWN,
 437         MODEKEYEDIT_HISTORYUP,
 438         MODEKEYEDIT_PASTE,
 439         MODEKEYEDIT_STARTOFLINE,
 440         MODEKEYEDIT_SWITCHMODE,
 441         MODEKEYEDIT_SWITCHMODEAPPEND,
 442         MODEKEYEDIT_TRANSPOSECHARS,
 443
 444         /* Menu (choice) keys. */
 445         MODEKEYCHOICE_CANCEL,
 446         MODEKEYCHOICE_CHOOSE,
 447         MODEKEYCHOICE_DOWN,
 448         MODEKEYCHOICE_PAGEDOWN,
 449         MODEKEYCHOICE_PAGEUP,
 450         MODEKEYCHOICE_SCROLLDOWN,
 451         MODEKEYCHOICE_SCROLLUP,
 452         MODEKEYCHOICE_UP,
 453
 454         /* Copy keys. */
 455         MODEKEYCOPY_BACKTOINDENTATION,
 456         MODEKEYCOPY_BOTTOMLINE,
 457         MODEKEYCOPY_CANCEL,
 458         MODEKEYCOPY_CLEARSELECTION,
 459         MODEKEYCOPY_COPYSELECTION,
 460         MODEKEYCOPY_DOWN,
 461         MODEKEYCOPY_ENDOFLINE,
 462         MODEKEYCOPY_GOTOLINE,
 463         MODEKEYCOPY_HALFPAGEDOWN,
 464         MODEKEYCOPY_HALFPAGEUP,
 465         MODEKEYCOPY_HISTORYBOTTOM,
 466         MODEKEYCOPY_HISTORYTOP,
 467         MODEKEYCOPY_JUMP,
 468         MODEKEYCOPY_JUMPAGAIN,
 469         MODEKEYCOPY_JUMPREVERSE,
 470         MODEKEYCOPY_JUMPBACK,
 471         MODEKEYCOPY_LEFT,
 472         MODEKEYCOPY_MIDDLELINE,
 473         MODEKEYCOPY_NEXTPAGE,
 474         MODEKEYCOPY_NEXTSPACE,
 475         MODEKEYCOPY_NEXTSPACEEND,
 476         MODEKEYCOPY_NEXTWORD,
 477         MODEKEYCOPY_NEXTWORDEND,
 478         MODEKEYCOPY_PREVIOUSPAGE,
 479         MODEKEYCOPY_PREVIOUSSPACE,
 480         MODEKEYCOPY_PREVIOUSWORD,
 481         MODEKEYCOPY_RECTANGLETOGGLE,
 482         MODEKEYCOPY_RIGHT,
 483         MODEKEYCOPY_SCROLLDOWN,
 484         MODEKEYCOPY_SCROLLUP,
 485         MODEKEYCOPY_SEARCHAGAIN,
 486         MODEKEYCOPY_SEARCHDOWN,
 487         MODEKEYCOPY_SEARCHREVERSE,
 488         MODEKEYCOPY_SEARCHUP,
 489         MODEKEYCOPY_STARTNUMBERPREFIX,
 490         MODEKEYCOPY_STARTOFLINE,
 491         MODEKEYCOPY_STARTSELECTION,
 492         MODEKEYCOPY_TOPLINE,
 493         MODEKEYCOPY_UP,
 494 };
 495
 496 /* Entry in the default mode key tables. */
 497 struct mode_key_entry {
 498         int                     key;
 499
 500         /*
 501          * Editing mode for vi: 0 is edit mode, keys not in the table are
 502          * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
 503          * are returned as MODEKEY_NONE. This is also matched on, allowing some
 504          * keys to be bound in edit mode.
 505          */
 506         int                     mode;
 507         enum mode_key_cmd       cmd;
 508 };
 509
 510 /* Data required while mode keys are in use. */
 511 struct mode_key_data {
 512         struct mode_key_tree   *tree;
 513         int                     mode;
 514 };
 515 #define MODEKEY_EMACS 0
 516 #define MODEKEY_VI 1
 517
 518 /* Binding between a key and a command. */
 519 struct mode_key_binding {
 520         int                     key;
 521
 522         int                     mode;
 523         enum mode_key_cmd       cmd;
 524
 525         SPLAY_ENTRY(mode_key_binding) entry;
 526 };
 527 SPLAY_HEAD(mode_key_tree, mode_key_binding);
 528
 529 /* Command to string mapping. */
 530 struct mode_key_cmdstr {
 531         enum mode_key_cmd        cmd;
 532         const char              *name;
 533 };
 534
 535 /* Named mode key table description. */
 536 struct mode_key_table {
 537         const char                      *name;
 538         const struct mode_key_cmdstr    *cmdstr;
 539         struct mode_key_tree            *tree;
 540         const struct mode_key_entry     *table; /* default entries */
 541 };
 542
 543 /* Modes. */
 544 #define MODE_CURSOR 0x1
 545 #define MODE_INSERT 0x2
 546 #define MODE_KCURSOR 0x4
 547 #define MODE_KKEYPAD 0x8        /* set = application, clear = number */
 548 #define MODE_WRAP 0x10          /* whether lines wrap */
 549 #define MODE_MOUSE_STANDARD 0x20
 550 #define MODE_MOUSE_BUTTON 0x40
 551 #define MODE_MOUSE_ANY 0x80
 552 #define MODE_MOUSE_UTF8 0x100
 553
 554 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)
 555
 556 /*
 557  * A single UTF-8 character.
 558  *
 559  * The data member in this must be UTF8_SIZE to allow screen_write_copy to
 560  * reinject stored UTF-8 data back into screen_write_cell after combining (ugh
 561  * XXX XXX).
 562  */
 563 struct utf8_data {
 564         u_char  data[UTF8_SIZE];
 565
 566         size_t  have;
 567         size_t  size;
 568
 569         u_int   width;
 570 };
 571
 572 /* Grid output. */
 573 #if defined(DEBUG) && \
 574     ((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
 575      (defined(__GNUC__) && __GNUC__ >= 3))
 576 #define GRID_DEBUG(gd, fmt, ...) log_debug2("%s: (sx=%u, sy=%u, hsize=%u) " \
 577     fmt, __func__, (gd)->sx, (gd)->sy, (gd)->hsize, ## __VA_ARGS__)
 578 #else
 579 #define GRID_DEBUG(...)
 580 #endif
 581
 582 /* Grid attributes. */
 583 #define GRID_ATTR_BRIGHT 0x1
 584 #define GRID_ATTR_DIM 0x2
 585 #define GRID_ATTR_UNDERSCORE 0x4
 586 #define GRID_ATTR_BLINK 0x8
 587 #define GRID_ATTR_REVERSE 0x10
 588 #define GRID_ATTR_HIDDEN 0x20
 589 #define GRID_ATTR_ITALICS 0x40
 590 #define GRID_ATTR_CHARSET 0x80  /* alternative character set */
 591
 592 /* Grid flags. */
 593 #define GRID_FLAG_FG256 0x1
 594 #define GRID_FLAG_BG256 0x2
 595 #define GRID_FLAG_PADDING 0x4
 596 #define GRID_FLAG_UTF8 0x8
 597
 598 /* Grid line flags. */
 599 #define GRID_LINE_WRAPPED 0x1
 600
 601 /* Grid cell data. */
 602 struct grid_cell {
 603         u_char  attr;
 604         u_char  flags;
 605         u_char  fg;
 606         u_char  bg;
 607         u_char  data;
 608 } __packed;
 609
 610 /* Grid cell UTF-8 data. Used instead of data in grid_cell for UTF-8 cells. */
 611 struct grid_utf8 {
 612         u_char  width;
 613         u_char  data[UTF8_SIZE];
 614 } __packed;
 615
 616 /* Grid line. */
 617 struct grid_line {
 618         u_int   cellsize;
 619         struct grid_cell *celldata;
 620
 621         u_int   utf8size;
 622         struct grid_utf8 *utf8data;
 623
 624         int     flags;
 625 } __packed;
 626
 627 /* Entire grid of cells. */
 628 struct grid {
 629         int     flags;
 630 #define GRID_HISTORY 0x1        /* scroll lines into history */
 631
 632         u_int   sx;
 633         u_int   sy;
 634
 635         u_int   hsize;
 636         u_int   hlimit;
 637
 638         struct grid_line *linedata;
 639 };
 640
 641 /* Option data structures. */
 642 struct options_entry {
 643         char            *name;
 644
 645         enum {
 646                 OPTIONS_STRING,
 647                 OPTIONS_NUMBER,
 648                 OPTIONS_DATA,
 649         } type;
 650
 651         char            *str;
 652         long long        num;
 653         void            *data;
 654
 655         void             (*freefn)(void *);
 656
 657         SPLAY_ENTRY(options_entry) entry;
 658 };
 659
 660 struct options {
 661         SPLAY_HEAD(options_tree, options_entry) tree;
 662         struct options  *parent;
 663 };
 664
 665 /* Key list for prefix option. */
 666 ARRAY_DECL(keylist, int);
 667
 668 /* Scheduled job. */
 669 struct job {
 670         char            *cmd;
 671         pid_t            pid;
 672         int              status;
 673
 674         int              fd;
 675         struct bufferevent *event;
 676
 677         void            (*callbackfn)(struct job *);
 678         void            (*freefn)(void *);
 679         void            *data;
 680
 681         LIST_ENTRY(job)  lentry;
 682 };
 683 LIST_HEAD(joblist, job);
 684
 685 /* Screen selection. */
 686 struct screen_sel {
 687         int              flag;
 688         int              rectflag;
 689
 690         u_int            sx;
 691         u_int            sy;
 692
 693         u_int            ex;
 694         u_int            ey;
 695
 696         struct grid_cell cell;
 697 };
 698
 699 /* Virtual screen. */
 700 struct screen {
 701         char            *title;
 702
 703         struct grid     *grid;          /* grid data */
 704
 705         u_int            cx;            /* cursor x */
 706         u_int            cy;            /* cursor y */
 707
 708         u_int            rupper;        /* scroll region top */
 709         u_int            rlower;        /* scroll region bottom */
 710
 711         int              mode;
 712
 713         bitstr_t        *tabs;
 714
 715         struct screen_sel sel;
 716 };
 717
 718 /* Screen write context. */
 719 struct screen_write_ctx {
 720         struct window_pane *wp;
 721         struct screen   *s;
 722 };
 723
 724 /* Screen size. */
 725 #define screen_size_x(s) ((s)->grid->sx)
 726 #define screen_size_y(s) ((s)->grid->sy)
 727 #define screen_hsize(s) ((s)->grid->hsize)
 728 #define screen_hlimit(s) ((s)->grid->hlimit)
 729
 730 /* Input parser context. */
 731 struct input_ctx {
 732         struct window_pane     *wp;
 733         struct screen_write_ctx ctx;
 734
 735         struct grid_cell        cell;
 736
 737         struct grid_cell        old_cell;
 738         u_int                   old_cx;
 739         u_int                   old_cy;
 740
 741         u_char                  interm_buf[4];
 742         size_t                  interm_len;
 743
 744         u_char                  param_buf[64];
 745         size_t                  param_len;
 746
 747         u_char                  input_buf[256];
 748         size_t                  input_len;
 749
 750         int                     param_list[24]; /* -1 not present */
 751         u_int                   param_list_len;
 752
 753         struct utf8_data        utf8data;
 754
 755         int                     ch;
 756         int                     flags;
 757 #define INPUT_DISCARD 0x1
 758
 759         const struct input_state *state;
 760 };
 761
 762 /*
 763  * Window mode. Windows can be in several modes and this is used to call the
 764  * right function to handle input and output.
 765  */
 766 struct session;
 767 struct window;
 768 struct mouse_event;
 769 struct window_mode {
 770         struct screen *(*init)(struct window_pane *);
 771         void    (*free)(struct window_pane *);
 772         void    (*resize)(struct window_pane *, u_int, u_int);
 773         void    (*key)(struct window_pane *, struct session *, int);
 774         void    (*mouse)(struct window_pane *,
 775                     struct session *, struct mouse_event *);
 776         void    (*timer)(struct window_pane *);
 777 };
 778
 779 /* Child window structure. */
 780 struct window_pane {
 781         struct window   *window;
 782         struct layout_cell *layout_cell;
 783
 784         u_int            sx;
 785         u_int            sy;
 786
 787         u_int            xoff;
 788         u_int            yoff;
 789
 790         int              flags;
 791 #define PANE_REDRAW 0x1
 792 #define PANE_FREEZE 0x2
 793
 794         char            *cmd;
 795         char            *shell;
 796         char            *cwd;
 797
 798         pid_t            pid;
 799         char             tty[TTY_NAME_MAX];
 800
 801         int              fd;
 802         struct bufferevent *event;
 803
 804         struct input_ctx ictx;
 805
 806         int              pipe_fd;
 807         struct bufferevent *pipe_event;
 808         size_t           pipe_off;
 809
 810         struct screen   *screen;
 811         struct screen    base;
 812
 813         /* Saved in alternative screen mode. */
 814         u_int            saved_cx;
 815         u_int            saved_cy;
 816         struct grid     *saved_grid;
 817         struct grid_cell saved_cell;
 818
 819         const struct window_mode *mode;
 820         void            *modedata;
 821
 822         TAILQ_ENTRY(window_pane) entry;
 823 };
 824 TAILQ_HEAD(window_panes, window_pane);
 825
 826 /* Window structure. */
 827 struct window {
 828         char            *name;
 829         struct event     name_timer;
 830         struct timeval   silence_timer;
 831
 832         struct window_pane *active;
 833         struct window_pane *last;
 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_ACTIVITY 0x2
 845 #define WINDOW_REDRAW 0x4
 846 #define WINDOW_SILENCE 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_SILENCE 0x8
 868 #define WINLINK_ALERTFLAGS \
 869     (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_CONTENT|WINLINK_SILENCE)
 870
 871         RB_ENTRY(winlink) entry;
 872         TAILQ_ENTRY(winlink) sentry;
 873 };
 874 RB_HEAD(winlinks, winlink);
 875 TAILQ_HEAD(winlink_stack, winlink);
 876
 877 /* Layout direction. */
 878 enum layout_type {
 879         LAYOUT_LEFTRIGHT,
 880         LAYOUT_TOPBOTTOM,
 881         LAYOUT_WINDOWPANE
 882 };
 883
 884 /* Layout cells queue. */
 885 TAILQ_HEAD(layout_cells, layout_cell);
 886
 887 /* Layout cell. */
 888 struct layout_cell {
 889         enum layout_type type;
 890
 891         struct layout_cell *parent;
 892
 893         u_int            sx;
 894         u_int            sy;
 895
 896         u_int            xoff;
 897         u_int            yoff;
 898
 899         struct window_pane *wp;
 900         struct layout_cells cells;
 901
 902         TAILQ_ENTRY(layout_cell) entry;
 903 };
 904
 905 /* Paste buffer. */
 906 struct paste_buffer {
 907         char            *data;
 908         size_t           size;
 909 };
 910 ARRAY_DECL(paste_stack, struct paste_buffer *);
 911
 912 /* Environment variable. */
 913 struct environ_entry {
 914         char            *name;
 915         char            *value;
 916
 917         RB_ENTRY(environ_entry) entry;
 918 };
 919 RB_HEAD(environ, environ_entry);
 920
 921 /* Client session. */
 922 struct session_group {
 923         TAILQ_HEAD(, session) sessions;
 924
 925         TAILQ_ENTRY(session_group) entry;
 926 };
 927 TAILQ_HEAD(session_groups, session_group);
 928
 929 struct session {
 930         u_int            idx;
 931
 932         char            *name;
 933         char            *cwd;
 934
 935         struct timeval   creation_time;
 936         struct timeval   activity_time;
 937
 938         u_int            sx;
 939         u_int            sy;
 940
 941         struct winlink  *curw;
 942         struct winlink_stack lastw;
 943         struct winlinks  windows;
 944
 945         struct options   options;
 946
 947 #define SESSION_UNATTACHED 0x1  /* not attached to any clients */
 948         int              flags;
 949
 950         struct termios  *tio;
 951
 952         struct environ   environ;
 953
 954         int              references;
 955
 956         TAILQ_ENTRY(session) gentry;
 957         RB_ENTRY(session)    entry;
 958 };
 959 RB_HEAD(sessions, session);
 960 ARRAY_DECL(sessionslist, struct session *);
 961
 962 /* TTY information. */
 963 struct tty_key {
 964         char             ch;
 965         int              key;
 966
 967         struct tty_key  *left;
 968         struct tty_key  *right;
 969
 970         struct tty_key  *next;
 971 };
 972
 973 struct tty_term {
 974         char            *name;
 975         u_int            references;
 976
 977         char             acs[UCHAR_MAX + 1][2];
 978
 979         struct tty_code  codes[NTTYCODE];
 980
 981 #define TERM_256COLOURS 0x1
 982 #define TERM_88COLOURS 0x2
 983 #define TERM_EARLYWRAP 0x4
 984         int              flags;
 985
 986         LIST_ENTRY(tty_term) entry;
 987 };
 988 LIST_HEAD(tty_terms, tty_term);
 989
 990 struct tty {
 991         char            *path;
 992
 993         u_int            sx;
 994         u_int            sy;
 995
 996         u_int            cx;
 997         u_int            cy;
 998
 999         int              mode;
1000
1001         u_int            rlower;
1002         u_int            rupper;
1003
1004         char            *termname;
1005         struct tty_term *term;
1006
1007         int              fd;
1008         struct bufferevent *event;
1009
1010         int              log_fd;
1011
1012         struct termios   tio;
1013
1014         struct grid_cell cell;
1015
1016 #define TTY_NOCURSOR 0x1
1017 #define TTY_FREEZE 0x2
1018 #define TTY_ESCAPE 0x4
1019 #define TTY_UTF8 0x8
1020 #define TTY_STARTED 0x10
1021 #define TTY_OPENED 0x20
1022 #define TTY_BACKOFF 0x40
1023         int              flags;
1024
1025         int              term_flags;
1026
1027         void             (*key_callback)(int, struct mouse_event *, void *);
1028         void            *key_data;
1029         struct event     key_timer;
1030         struct tty_key  *key_tree;
1031 };
1032
1033 /* TTY command context and function pointer. */
1034 struct tty_ctx {
1035         struct window_pane *wp;
1036
1037         const struct grid_cell *cell;
1038         const struct grid_utf8 *utf8;
1039
1040         u_int            num;
1041         void            *ptr;
1042
1043         /*
1044          * Cursor and region position before the screen was updated - this is
1045          * where the command should be applied; the values in the screen have
1046          * already been updated.
1047          */
1048         u_int            ocx;
1049         u_int            ocy;
1050
1051         u_int            orupper;
1052         u_int            orlower;
1053
1054         /* Saved last cell on line. */
1055         struct grid_cell last_cell;
1056         struct grid_utf8 last_utf8;
1057         u_int            last_width;
1058 };
1059
1060 /*
1061  * xterm mouse mode is fairly silly. Buttons are in the bottom two
1062  * bits: 0 button 1; 1 button 2; 2 button 3; 3 buttons released.
1063  *
1064  * Bit 3 is shift; bit 4 is meta; bit 5 control.
1065  *
1066  * Bit 6 is added for mouse buttons 4 and 5.
1067  */
1068 /* Mouse input. */
1069 struct mouse_event {
1070         u_int   b;
1071 #define MOUSE_1 0
1072 #define MOUSE_2 1
1073 #define MOUSE_3 2
1074 #define MOUSE_UP 3
1075 #define MOUSE_BUTTON 3
1076 #define MOUSE_45 64
1077         u_int   x;
1078         u_int   y;
1079 };
1080
1081 /* Saved message entry. */
1082 struct message_entry {
1083         char   *msg;
1084         time_t  msg_time;
1085 };
1086
1087 /* Status output data from a job. */
1088 struct status_out {
1089         char   *cmd;
1090         char   *out;
1091
1092         RB_ENTRY(status_out) entry;
1093 };
1094 RB_HEAD(status_out_tree, status_out);
1095
1096 /* Client connection. */
1097 struct client {
1098         struct imsgbuf   ibuf;
1099         struct event     event;
1100         int              retcode;
1101
1102         struct timeval   creation_time;
1103         struct timeval   activity_time;
1104
1105         struct environ   environ;
1106
1107         char            *title;
1108         char            *cwd;
1109
1110         struct tty       tty;
1111
1112         int              stdin_fd;
1113         void            *stdin_data;
1114         void            (*stdin_callback)(struct client *, void *);
1115         struct bufferevent *stdin_event;
1116
1117         int              stdout_fd;
1118         struct bufferevent *stdout_event;
1119
1120         int              stderr_fd;
1121         struct bufferevent *stderr_event;
1122
1123         struct event     repeat_timer;
1124
1125         struct status_out_tree status_old;
1126         struct status_out_tree status_new;
1127         struct timeval   status_timer;
1128         struct screen    status;
1129
1130 #define CLIENT_TERMINAL 0x1
1131 #define CLIENT_PREFIX 0x2
1132 #define CLIENT_EXIT 0x4
1133 #define CLIENT_REDRAW 0x8
1134 #define CLIENT_STATUS 0x10
1135 #define CLIENT_REPEAT 0x20      /* allow command to repeat within repeat time */
1136 #define CLIENT_SUSPENDED 0x40
1137 #define CLIENT_BAD 0x80
1138 #define CLIENT_IDENTIFY 0x100
1139 #define CLIENT_DEAD 0x200
1140 #define CLIENT_BORDERS 0x400
1141 #define CLIENT_READONLY 0x800
1142 #define CLIENT_BACKOFF 0x1000
1143 #define CLIENT_REDRAWWINDOW 0x2000
1144         int              flags;
1145
1146         struct event     identify_timer;
1147
1148         char            *message_string;
1149         struct event     message_timer;
1150         ARRAY_DECL(, struct message_entry) message_log;
1151
1152         char            *prompt_string;
1153         char            *prompt_buffer;
1154         size_t           prompt_index;
1155         int              (*prompt_callbackfn)(void *, const char *);
1156         void             (*prompt_freefn)(void *);
1157         void            *prompt_data;
1158         u_int            prompt_hindex;
1159
1160 #define PROMPT_SINGLE 0x1
1161         int              prompt_flags;
1162
1163         struct mode_key_data prompt_mdata;
1164
1165         struct session  *session;
1166         struct session  *last_session;
1167
1168         int              references;
1169 };
1170 ARRAY_DECL(clients, struct client *);
1171
1172 /* Parsed arguments. */
1173 struct args {
1174         bitstr_t        *flags;
1175         char            *values[SCHAR_MAX]; /* XXX This is awfully big. */
1176
1177         int              argc;
1178         char           **argv;
1179 };
1180
1181 /* Key/command line command. */
1182 struct cmd_ctx {
1183         /*
1184          * curclient is the client where this command was executed if inside
1185          * tmux. This is NULL if the command came from the command-line.
1186          *
1187          * cmdclient is the client which sent the MSG_COMMAND to the server, if
1188          * any. This is NULL unless the command came from the command-line.
1189          *
1190          * cmdclient and curclient may both be NULL if the command is in the
1191          * configuration file.
1192          */
1193         struct client  *curclient;
1194         struct client  *cmdclient;
1195
1196         struct msg_command_data *msgdata;
1197
1198         /* gcc2 doesn't understand attributes on function pointers... */
1199 #if defined(__GNUC__) && __GNUC__ >= 3
1200         void printflike2 (*print)(struct cmd_ctx *, const char *, ...);
1201         void printflike2 (*info)(struct cmd_ctx *, const char *, ...);
1202         void printflike2 (*error)(struct cmd_ctx *, const char *, ...);
1203 #else
1204         void (*print)(struct cmd_ctx *, const char *, ...);
1205         void (*info)(struct cmd_ctx *, const char *, ...);
1206         void (*error)(struct cmd_ctx *, const char *, ...);
1207 #endif
1208 };
1209
1210 struct cmd {
1211         const struct cmd_entry  *entry;
1212         struct args             *args;
1213
1214         TAILQ_ENTRY(cmd)         qentry;
1215 };
1216 struct cmd_list {
1217         int                      references;
1218         TAILQ_HEAD(, cmd)        list;
1219 };
1220
1221 struct cmd_entry {
1222         const char      *name;
1223         const char      *alias;
1224
1225         const char      *args_template;
1226         int              args_lower;
1227         int              args_upper;
1228
1229         const char      *usage;
1230
1231 #define CMD_STARTSERVER 0x1
1232 #define CMD_CANTNEST 0x2
1233 #define CMD_SENDENVIRON 0x4
1234 #define CMD_READONLY 0x8
1235         int              flags;
1236
1237         void             (*key_binding)(struct cmd *, int);
1238         int              (*check)(struct args *);
1239         int              (*exec)(struct cmd *, struct cmd_ctx *);
1240 };
1241
1242 /* Key binding. */
1243 struct key_binding {
1244         int              key;
1245         struct cmd_list *cmdlist;
1246         int              can_repeat;
1247
1248         SPLAY_ENTRY(key_binding) entry;
1249 };
1250 SPLAY_HEAD(key_bindings, key_binding);
1251
1252 /*
1253  * Option table entries. The option table is the user-visible part of the
1254  * option, as opposed to the internal options (struct option) which are just
1255  * number or string.
1256  */
1257 enum options_table_type {
1258         OPTIONS_TABLE_STRING,
1259         OPTIONS_TABLE_NUMBER,
1260         OPTIONS_TABLE_KEYS,
1261         OPTIONS_TABLE_COLOUR,
1262         OPTIONS_TABLE_ATTRIBUTES,
1263         OPTIONS_TABLE_FLAG,
1264         OPTIONS_TABLE_CHOICE
1265 };
1266
1267 struct options_table_entry {
1268         const char             *name;
1269         enum options_table_type type;
1270
1271         u_int                   minimum;
1272         u_int                   maximum;
1273         const char            **choices;
1274
1275         const char             *default_str;
1276         long long               default_num;
1277 };
1278
1279 /* List of configuration causes. */
1280 ARRAY_DECL(causelist, char *);
1281
1282 /* Common command usages. */
1283 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1284 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1285 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1286 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1287 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1288 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1289 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1290 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1291 #define CMD_BUFFER_USAGE "[-b buffer-index]"
1292
1293 /* tmux.c */
1294 extern struct options global_options;
1295 extern struct options global_s_options;
1296 extern struct options global_w_options;
1297 extern struct environ global_environ;
1298 extern struct event_base *ev_base;
1299 extern char     *cfg_file;
1300 extern char     *shell_cmd;
1301 extern int       debug_level;
1302 extern time_t    start_time;
1303 extern char      socket_path[MAXPATHLEN];
1304 extern int       login_shell;
1305 extern char     *environ_path;
1306 extern pid_t     environ_pid;
1307 extern int       environ_idx;
1308 void             logfile(const char *);
1309 const char      *getshell(void);
1310 int              checkshell(const char *);
1311 int              areshell(const char *);
1312 void             setblocking(int, int);
1313 __dead void      shell_exec(const char *, const char *);
1314
1315 /* cfg.c */
1316 extern int       cfg_finished;
1317 extern struct causelist cfg_causes;
1318 void printflike2 cfg_add_cause(struct causelist *, const char *, ...);
1319 int              load_cfg(const char *, struct cmd_ctx *, struct causelist *);
1320
1321 /* mode-key.c */
1322 extern const struct mode_key_table mode_key_tables[];
1323 extern struct mode_key_tree mode_key_tree_vi_edit;
1324 extern struct mode_key_tree mode_key_tree_vi_choice;
1325 extern struct mode_key_tree mode_key_tree_vi_copy;
1326 extern struct mode_key_tree mode_key_tree_emacs_edit;
1327 extern struct mode_key_tree mode_key_tree_emacs_choice;
1328 extern struct mode_key_tree mode_key_tree_emacs_copy;
1329 int     mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1330 SPLAY_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1331 const char *mode_key_tostring(const struct mode_key_cmdstr *,
1332             enum mode_key_cmd);
1333 enum mode_key_cmd mode_key_fromstring(const struct mode_key_cmdstr *,
1334             const char *);
1335 const struct mode_key_table *mode_key_findtable(const char *);
1336 void    mode_key_init_trees(void);
1337 void    mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1338 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int);
1339
1340 /* options.c */
1341 int     options_cmp(struct options_entry *, struct options_entry *);
1342 SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1343 void    options_init(struct options *, struct options *);
1344 void    options_free(struct options *);
1345 struct options_entry *options_find1(struct options *, const char *);
1346 struct options_entry *options_find(struct options *, const char *);
1347 void    options_remove(struct options *, const char *);
1348 struct options_entry *printflike3 options_set_string(
1349             struct options *, const char *, const char *, ...);
1350 char   *options_get_string(struct options *, const char *);
1351 struct options_entry *options_set_number(
1352             struct options *, const char *, long long);
1353 long long options_get_number(struct options *, const char *);
1354 struct options_entry *options_set_data(
1355             struct options *, const char *, void *, void (*)(void *));
1356 void   *options_get_data(struct options *, const char *);
1357
1358 /* options-table.c */
1359 extern const struct options_table_entry server_options_table[];
1360 extern const struct options_table_entry session_options_table[];
1361 extern const struct options_table_entry window_options_table[];
1362 void    options_table_populate_tree(
1363             const struct options_table_entry *, struct options *);
1364 const char *options_table_print_entry(
1365             const struct options_table_entry *, struct options_entry *);
1366
1367 /* job.c */
1368 extern struct joblist all_jobs;
1369 struct job *job_run(
1370             const char *, void (*)(struct job *), void (*)(void *), void *);
1371 void    job_free(struct job *);
1372 void    job_died(struct job *, int);
1373
1374 /* environ.c */
1375 int     environ_cmp(struct environ_entry *, struct environ_entry *);
1376 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1377 void    environ_init(struct environ *);
1378 void    environ_free(struct environ *);
1379 void    environ_copy(struct environ *, struct environ *);
1380 struct environ_entry *environ_find(struct environ *, const char *);
1381 void    environ_set(struct environ *, const char *, const char *);
1382 void    environ_put(struct environ *, const char *);
1383 void    environ_unset(struct environ *, const char *);
1384 void    environ_update(const char *, struct environ *, struct environ *);
1385 void    environ_push(struct environ *);
1386
1387 /* tty.c */
1388 void    tty_raw(struct tty *, const char *);
1389 void    tty_attributes(struct tty *, const struct grid_cell *);
1390 void    tty_reset(struct tty *);
1391 void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1392 void    tty_region(struct tty *, u_int, u_int);
1393 void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1394 void    tty_cursor(struct tty *, u_int, u_int);
1395 void    tty_putcode(struct tty *, enum tty_code_code);
1396 void    tty_putcode1(struct tty *, enum tty_code_code, int);
1397 void    tty_putcode2(struct tty *, enum tty_code_code, int, int);
1398 void    tty_puts(struct tty *, const char *);
1399 void    tty_putc(struct tty *, u_char);
1400 void    tty_pututf8(struct tty *, const struct grid_utf8 *);
1401 void    tty_init(struct tty *, int, char *);
1402 int     tty_resize(struct tty *);
1403 void    tty_start_tty(struct tty *);
1404 void    tty_stop_tty(struct tty *);
1405 void    tty_set_title(struct tty *, const char *);
1406 void    tty_update_mode(struct tty *, int);
1407 void    tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1408 int     tty_open(struct tty *, const char *, char **);
1409 void    tty_close(struct tty *);
1410 void    tty_free(struct tty *);
1411 void    tty_write(void (*)(
1412             struct tty *, const struct tty_ctx *), const struct tty_ctx *);
1413 void    tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1414 void    tty_cmd_cell(struct tty *, const struct tty_ctx *);
1415 void    tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1416 void    tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1417 void    tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1418 void    tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1419 void    tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1420 void    tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1421 void    tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1422 void    tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1423 void    tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1424 void    tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1425 void    tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1426 void    tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1427 void    tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1428
1429 /* tty-term.c */
1430 extern struct tty_terms tty_terms;
1431 extern const struct tty_term_code_entry tty_term_codes[NTTYCODE];
1432 struct tty_term *tty_term_find(char *, int, const char *, char **);
1433 void             tty_term_free(struct tty_term *);
1434 int              tty_term_has(struct tty_term *, enum tty_code_code);
1435 const char      *tty_term_string(struct tty_term *, enum tty_code_code);
1436 const char      *tty_term_string1(struct tty_term *, enum tty_code_code, int);
1437 const char      *tty_term_string2(
1438                      struct tty_term *, enum tty_code_code, int, int);
1439 int              tty_term_number(struct tty_term *, enum tty_code_code);
1440 int              tty_term_flag(struct tty_term *, enum tty_code_code);
1441
1442 /* tty-acs.c */
1443 const char      *tty_acs_get(struct tty *, u_char);
1444
1445 /* tty-keys.c */
1446 void    tty_keys_init(struct tty *);
1447 void    tty_keys_free(struct tty *);
1448 int     tty_keys_next(struct tty *);
1449
1450 /* paste.c */
1451 struct paste_buffer *paste_walk_stack(struct paste_stack *, uint *);
1452 struct paste_buffer *paste_get_top(struct paste_stack *);
1453 struct paste_buffer *paste_get_index(struct paste_stack *, u_int);
1454 int              paste_free_top(struct paste_stack *);
1455 int              paste_free_index(struct paste_stack *, u_int);
1456 void             paste_add(struct paste_stack *, char *, size_t, u_int);
1457 int              paste_replace(struct paste_stack *, u_int, char *, size_t);
1458 char            *paste_print(struct paste_buffer *, size_t);
1459
1460 /* clock.c */
1461 extern const char clock_table[14][5][5];
1462 void             clock_draw(struct screen_write_ctx *, int, int);
1463
1464 /* arguments.c */
1465 struct args     *args_create(int, ...);
1466 struct args     *args_parse(const char *, int, char **);
1467 void             args_free(struct args *);
1468 size_t           args_print(struct args *, char *, size_t);
1469 int              args_has(struct args *, u_char);
1470 void             args_set(struct args *, u_char, const char *);
1471 const char      *args_get(struct args *, u_char);
1472 long long        args_strtonum(
1473                     struct args *, u_char, long long, long long, char **);
1474
1475 /* cmd.c */
1476 int              cmd_pack_argv(int, char **, char *, size_t);
1477 int              cmd_unpack_argv(char *, size_t, int, char ***);
1478 char           **cmd_copy_argv(int, char *const *);
1479 void             cmd_free_argv(int, char **);
1480 struct cmd      *cmd_parse(int, char **, char **);
1481 int              cmd_exec(struct cmd *, struct cmd_ctx *);
1482 void             cmd_free(struct cmd *);
1483 size_t           cmd_print(struct cmd *, char *, size_t);
1484 struct session  *cmd_current_session(struct cmd_ctx *);
1485 struct client   *cmd_current_client(struct cmd_ctx *);
1486 struct client   *cmd_find_client(struct cmd_ctx *, const char *);
1487 struct session  *cmd_find_session(struct cmd_ctx *, const char *);
1488 struct winlink  *cmd_find_window(
1489                      struct cmd_ctx *, const char *, struct session **);
1490 int              cmd_find_index(
1491                      struct cmd_ctx *, const char *, struct session **);
1492 struct winlink  *cmd_find_pane(struct cmd_ctx *,
1493                      const char *, struct session **, struct window_pane **);
1494 char            *cmd_template_replace(char *, const char *, int);
1495 extern const struct cmd_entry *cmd_table[];
1496 extern const struct cmd_entry cmd_attach_session_entry;
1497 extern const struct cmd_entry cmd_bind_key_entry;
1498 extern const struct cmd_entry cmd_break_pane_entry;
1499 extern const struct cmd_entry cmd_capture_pane_entry;
1500 extern const struct cmd_entry cmd_choose_buffer_entry;
1501 extern const struct cmd_entry cmd_choose_client_entry;
1502 extern const struct cmd_entry cmd_choose_session_entry;
1503 extern const struct cmd_entry cmd_choose_window_entry;
1504 extern const struct cmd_entry cmd_clear_history_entry;
1505 extern const struct cmd_entry cmd_clock_mode_entry;
1506 extern const struct cmd_entry cmd_command_prompt_entry;
1507 extern const struct cmd_entry cmd_confirm_before_entry;
1508 extern const struct cmd_entry cmd_copy_mode_entry;
1509 extern const struct cmd_entry cmd_delete_buffer_entry;
1510 extern const struct cmd_entry cmd_detach_client_entry;
1511 extern const struct cmd_entry cmd_display_message_entry;
1512 extern const struct cmd_entry cmd_display_panes_entry;
1513 extern const struct cmd_entry cmd_down_pane_entry;
1514 extern const struct cmd_entry cmd_find_window_entry;
1515 extern const struct cmd_entry cmd_has_session_entry;
1516 extern const struct cmd_entry cmd_if_shell_entry;
1517 extern const struct cmd_entry cmd_join_pane_entry;
1518 extern const struct cmd_entry cmd_kill_pane_entry;
1519 extern const struct cmd_entry cmd_kill_server_entry;
1520 extern const struct cmd_entry cmd_kill_session_entry;
1521 extern const struct cmd_entry cmd_kill_window_entry;
1522 extern const struct cmd_entry cmd_last_pane_entry;
1523 extern const struct cmd_entry cmd_last_window_entry;
1524 extern const struct cmd_entry cmd_link_window_entry;
1525 extern const struct cmd_entry cmd_list_buffers_entry;
1526 extern const struct cmd_entry cmd_list_clients_entry;
1527 extern const struct cmd_entry cmd_list_commands_entry;
1528 extern const struct cmd_entry cmd_list_keys_entry;
1529 extern const struct cmd_entry cmd_list_panes_entry;
1530 extern const struct cmd_entry cmd_list_sessions_entry;
1531 extern const struct cmd_entry cmd_list_windows_entry;
1532 extern const struct cmd_entry cmd_load_buffer_entry;
1533 extern const struct cmd_entry cmd_lock_client_entry;
1534 extern const struct cmd_entry cmd_lock_server_entry;
1535 extern const struct cmd_entry cmd_lock_session_entry;
1536 extern const struct cmd_entry cmd_move_window_entry;
1537 extern const struct cmd_entry cmd_new_session_entry;
1538 extern const struct cmd_entry cmd_new_window_entry;
1539 extern const struct cmd_entry cmd_next_layout_entry;
1540 extern const struct cmd_entry cmd_next_window_entry;
1541 extern const struct cmd_entry cmd_paste_buffer_entry;
1542 extern const struct cmd_entry cmd_pipe_pane_entry;
1543 extern const struct cmd_entry cmd_previous_layout_entry;
1544 extern const struct cmd_entry cmd_previous_window_entry;
1545 extern const struct cmd_entry cmd_refresh_client_entry;
1546 extern const struct cmd_entry cmd_rename_session_entry;
1547 extern const struct cmd_entry cmd_rename_window_entry;
1548 extern const struct cmd_entry cmd_resize_pane_entry;
1549 extern const struct cmd_entry cmd_respawn_window_entry;
1550 extern const struct cmd_entry cmd_rotate_window_entry;
1551 extern const struct cmd_entry cmd_run_shell_entry;
1552 extern const struct cmd_entry cmd_save_buffer_entry;
1553 extern const struct cmd_entry cmd_select_layout_entry;
1554 extern const struct cmd_entry cmd_select_pane_entry;
1555 extern const struct cmd_entry cmd_select_window_entry;
1556 extern const struct cmd_entry cmd_send_keys_entry;
1557 extern const struct cmd_entry cmd_send_prefix_entry;
1558 extern const struct cmd_entry cmd_server_info_entry;
1559 extern const struct cmd_entry cmd_set_buffer_entry;
1560 extern const struct cmd_entry cmd_set_environment_entry;
1561 extern const struct cmd_entry cmd_set_option_entry;
1562 extern const struct cmd_entry cmd_set_window_option_entry;
1563 extern const struct cmd_entry cmd_show_buffer_entry;
1564 extern const struct cmd_entry cmd_show_environment_entry;
1565 extern const struct cmd_entry cmd_show_messages_entry;
1566 extern const struct cmd_entry cmd_show_options_entry;
1567 extern const struct cmd_entry cmd_show_window_options_entry;
1568 extern const struct cmd_entry cmd_source_file_entry;
1569 extern const struct cmd_entry cmd_split_window_entry;
1570 extern const struct cmd_entry cmd_start_server_entry;
1571 extern const struct cmd_entry cmd_suspend_client_entry;
1572 extern const struct cmd_entry cmd_swap_pane_entry;
1573 extern const struct cmd_entry cmd_swap_window_entry;
1574 extern const struct cmd_entry cmd_switch_client_entry;
1575 extern const struct cmd_entry cmd_unbind_key_entry;
1576 extern const struct cmd_entry cmd_unlink_window_entry;
1577 extern const struct cmd_entry cmd_up_pane_entry;
1578
1579 /* cmd-list.c */
1580 struct cmd_list *cmd_list_parse(int, char **, char **);
1581 int              cmd_list_exec(struct cmd_list *, struct cmd_ctx *);
1582 void             cmd_list_free(struct cmd_list *);
1583 size_t           cmd_list_print(struct cmd_list *, char *, size_t);
1584
1585 /* cmd-string.c */
1586 int     cmd_string_parse(const char *, struct cmd_list **, char **);
1587
1588 /* client.c */
1589 int     client_main(int, char **, int);
1590
1591 /* key-bindings.c */
1592 extern struct key_bindings key_bindings;
1593 int      key_bindings_cmp(struct key_binding *, struct key_binding *);
1594 SPLAY_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1595 struct key_binding *key_bindings_lookup(int);
1596 void     key_bindings_add(int, int, struct cmd_list *);
1597 void     key_bindings_remove(int);
1598 void     key_bindings_clean(void);
1599 void     key_bindings_init(void);
1600 void     key_bindings_dispatch(struct key_binding *, struct client *);
1601 void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
1602 void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
1603 void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
1604
1605 /* key-string.c */
1606 int      key_string_lookup_string(const char *);
1607 const char *key_string_lookup_key(int);
1608
1609 /* server.c */
1610 extern struct clients clients;
1611 extern struct clients dead_clients;
1612 extern struct paste_stack global_buffers;
1613 int      server_start(void);
1614 void     server_update_socket(void);
1615
1616 /* server-client.c */
1617 void     server_client_create(int);
1618 void     server_client_lost(struct client *);
1619 void     server_client_callback(int, short, void *);
1620 void     server_client_status_timer(void);
1621 void     server_client_loop(void);
1622
1623 /* server-window.c */
1624 void     server_window_loop(void);
1625
1626 /* server-fn.c */
1627 void     server_fill_environ(struct session *, struct environ *);
1628 void     server_write_client(
1629              struct client *, enum msgtype, const void *, size_t);
1630 void     server_write_session(
1631              struct session *, enum msgtype, const void *, size_t);
1632 void     server_redraw_client(struct client *);
1633 void     server_status_client(struct client *);
1634 void     server_redraw_session(struct session *);
1635 void     server_redraw_session_group(struct session *);
1636 void     server_status_session(struct session *);
1637 void     server_status_session_group(struct session *);
1638 void     server_redraw_window(struct window *);
1639 void     server_redraw_window_borders(struct window *);
1640 void     server_status_window(struct window *);
1641 void     server_lock(void);
1642 void     server_lock_session(struct session *);
1643 void     server_lock_client(struct client *);
1644 int      server_unlock(const char *);
1645 void     server_kill_window(struct window *);
1646 int      server_link_window(struct session *,
1647              struct winlink *, struct session *, int, int, int, char **);
1648 void     server_unlink_window(struct session *, struct winlink *);
1649 void     server_destroy_pane(struct window_pane *);
1650 void     server_destroy_session_group(struct session *);
1651 void     server_destroy_session(struct session *);
1652 void     server_check_unattached (void);
1653 void     server_set_identify(struct client *);
1654 void     server_clear_identify(struct client *);
1655 void     server_update_event(struct client *);
1656
1657 /* status.c */
1658 int      status_out_cmp(struct status_out *, struct status_out *);
1659 RB_PROTOTYPE(status_out_tree, status_out, entry, status_out_cmp);
1660 void     status_free_jobs(struct status_out_tree *);
1661 void     status_update_jobs(struct client *);
1662 int      status_redraw(struct client *);
1663 char    *status_replace(
1664              struct client *, struct winlink *, const char *, time_t, int);
1665 void printflike2 status_message_set(struct client *, const char *, ...);
1666 void     status_message_clear(struct client *);
1667 int      status_message_redraw(struct client *);
1668 void     status_prompt_set(struct client *, const char *,
1669              int (*)(void *, const char *), void (*)(void *), void *, int);
1670 void     status_prompt_clear(struct client *);
1671 int      status_prompt_redraw(struct client *);
1672 void     status_prompt_key(struct client *, int);
1673 void     status_prompt_update(struct client *, const char *);
1674
1675 /* resize.c */
1676 void     recalculate_sizes(void);
1677
1678 /* input.c */
1679 void     input_init(struct window_pane *);
1680 void     input_free(struct window_pane *);
1681 void     input_parse(struct window_pane *);
1682
1683 /* input-key.c */
1684 void     input_key(struct window_pane *, int);
1685 void     input_mouse(struct window_pane *, struct mouse_event *);
1686
1687 /* xterm-keys.c */
1688 char    *xterm_keys_lookup(int);
1689 int      xterm_keys_find(const char *, size_t, size_t *, int *);
1690
1691 /* colour.c */
1692 void     colour_set_fg(struct grid_cell *, int);
1693 void     colour_set_bg(struct grid_cell *, int);
1694 const char *colour_tostring(int);
1695 int      colour_fromstring(const char *);
1696 u_char   colour_256to16(u_char);
1697 u_char   colour_256to88(u_char);
1698
1699 /* attributes.c */
1700 const char *attributes_tostring(u_char);
1701 int      attributes_fromstring(const char *);
1702
1703 /* grid.c */
1704 extern const struct grid_cell grid_default_cell;
1705 struct grid *grid_create(u_int, u_int, u_int);
1706 void     grid_destroy(struct grid *);
1707 int      grid_compare(struct grid *, struct grid *);
1708 void     grid_collect_history(struct grid *);
1709 void     grid_scroll_history(struct grid *);
1710 void     grid_scroll_history_region(struct grid *, u_int, u_int);
1711 void     grid_expand_line(struct grid *, u_int, u_int);
1712 void     grid_expand_line_utf8(struct grid *, u_int, u_int);
1713 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
1714 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
1715 void     grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
1716 const struct grid_utf8 *grid_peek_utf8(struct grid *, u_int, u_int);
1717 struct grid_utf8 *grid_get_utf8(struct grid *, u_int, u_int);
1718 void     grid_set_utf8(struct grid *, u_int, u_int, const struct grid_utf8 *);
1719 void     grid_clear(struct grid *, u_int, u_int, u_int, u_int);
1720 void     grid_clear_lines(struct grid *, u_int, u_int);
1721 void     grid_move_lines(struct grid *, u_int, u_int, u_int);
1722 void     grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
1723 char    *grid_string_cells(struct grid *, u_int, u_int, u_int);
1724 void     grid_duplicate_lines(
1725              struct grid *, u_int, struct grid *, u_int, u_int);
1726
1727 /* grid-utf8.c */
1728 size_t   grid_utf8_size(const struct grid_utf8 *);
1729 size_t   grid_utf8_copy(const struct grid_utf8 *, char *, size_t);
1730 void     grid_utf8_set(struct grid_utf8 *, const struct utf8_data *);
1731 int      grid_utf8_append(struct grid_utf8 *, const struct utf8_data *);
1732 int      grid_utf8_compare(const struct grid_utf8 *, const struct grid_utf8 *);
1733
1734 /* grid-view.c */
1735 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
1736 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
1737 void     grid_view_set_cell(
1738              struct grid *, u_int, u_int, const struct grid_cell *);
1739 const struct grid_utf8 *grid_view_peek_utf8(struct grid *, u_int, u_int);
1740 struct grid_utf8 *grid_view_get_utf8(struct grid *, u_int, u_int);
1741 void     grid_view_set_utf8(
1742              struct grid *, u_int, u_int, const struct grid_utf8 *);
1743 void     grid_view_clear_history(struct grid *);
1744 void     grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
1745 void     grid_view_scroll_region_up(struct grid *, u_int, u_int);
1746 void     grid_view_scroll_region_down(struct grid *, u_int, u_int);
1747 void     grid_view_insert_lines(struct grid *, u_int, u_int);
1748 void     grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
1749 void     grid_view_delete_lines(struct grid *, u_int, u_int);
1750 void     grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
1751 void     grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
1752 void     grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
1753 char    *grid_view_string_cells(struct grid *, u_int, u_int, u_int);
1754
1755 /* screen-write.c */
1756 void     screen_write_start(
1757              struct screen_write_ctx *, struct window_pane *, struct screen *);
1758 void     screen_write_stop(struct screen_write_ctx *);
1759 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
1760 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
1761              ssize_t, struct grid_cell *, int, const char *, ...);
1762 size_t printflike2 screen_write_strlen(int, const char *, ...);
1763 void printflike3 screen_write_puts(struct screen_write_ctx *,
1764              struct grid_cell *, const char *, ...);
1765 void printflike5 screen_write_nputs(struct screen_write_ctx *,
1766              ssize_t, struct grid_cell *, int, const char *, ...);
1767 void     screen_write_vnputs(struct screen_write_ctx *,
1768              ssize_t, struct grid_cell *, int, const char *, va_list);
1769 void     screen_write_parsestyle(
1770              struct grid_cell *, struct grid_cell *, const char *);
1771 void     screen_write_putc(
1772              struct screen_write_ctx *, struct grid_cell *, u_char);
1773 void     screen_write_copy(struct screen_write_ctx *,
1774              struct screen *, u_int, u_int, u_int, u_int);
1775 void     screen_write_backspace(struct screen_write_ctx *);
1776 void     screen_write_cursorup(struct screen_write_ctx *, u_int);
1777 void     screen_write_cursordown(struct screen_write_ctx *, u_int);
1778 void     screen_write_cursorright(struct screen_write_ctx *, u_int);
1779 void     screen_write_cursorleft(struct screen_write_ctx *, u_int);
1780 void     screen_write_alignmenttest(struct screen_write_ctx *);
1781 void     screen_write_insertcharacter(struct screen_write_ctx *, u_int);
1782 void     screen_write_deletecharacter(struct screen_write_ctx *, u_int);
1783 void     screen_write_insertline(struct screen_write_ctx *, u_int);
1784 void     screen_write_deleteline(struct screen_write_ctx *, u_int);
1785 void     screen_write_clearline(struct screen_write_ctx *);
1786 void     screen_write_clearendofline(struct screen_write_ctx *);
1787 void     screen_write_clearstartofline(struct screen_write_ctx *);
1788 void     screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
1789 void     screen_write_cursormode(struct screen_write_ctx *, int);
1790 void     screen_write_reverseindex(struct screen_write_ctx *);
1791 void     screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
1792 void     screen_write_insertmode(struct screen_write_ctx *, int);
1793 void     screen_write_utf8mousemode(struct screen_write_ctx *, int);
1794 void     screen_write_mousemode_on(struct screen_write_ctx *, int);
1795 void     screen_write_mousemode_off(struct screen_write_ctx *);
1796 void     screen_write_linefeed(struct screen_write_ctx *, int);
1797 void     screen_write_linefeedscreen(struct screen_write_ctx *, int);
1798 void     screen_write_carriagereturn(struct screen_write_ctx *);
1799 void     screen_write_kcursormode(struct screen_write_ctx *, int);
1800 void     screen_write_kkeypadmode(struct screen_write_ctx *, int);
1801 void     screen_write_clearendofscreen(struct screen_write_ctx *);
1802 void     screen_write_clearstartofscreen(struct screen_write_ctx *);
1803 void     screen_write_clearscreen(struct screen_write_ctx *);
1804 void     screen_write_cell(struct screen_write_ctx *,
1805              const struct grid_cell *, const struct utf8_data *);
1806
1807 /* screen-redraw.c */
1808 void     screen_redraw_screen(struct client *, int, int);
1809 void     screen_redraw_pane(struct client *, struct window_pane *);
1810
1811 /* screen.c */
1812 void     screen_init(struct screen *, u_int, u_int, u_int);
1813 void     screen_reinit(struct screen *);
1814 void     screen_free(struct screen *);
1815 void     screen_reset_tabs(struct screen *);
1816 void     screen_set_title(struct screen *, const char *);
1817 void     screen_resize(struct screen *, u_int, u_int);
1818 void     screen_set_selection(struct screen *,
1819              u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
1820 void     screen_clear_selection(struct screen *);
1821 int      screen_check_selection(struct screen *, u_int, u_int);
1822
1823 /* window.c */
1824 extern struct windows windows;
1825 int              winlink_cmp(struct winlink *, struct winlink *);
1826 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
1827 struct winlink  *winlink_find_by_index(struct winlinks *, int);
1828 struct winlink  *winlink_find_by_window(struct winlinks *, struct window *);
1829 int              winlink_next_index(struct winlinks *, int);
1830 u_int            winlink_count(struct winlinks *);
1831 struct winlink  *winlink_add(struct winlinks *, int);
1832 void             winlink_set_window(struct winlink *, struct window *);
1833 void             winlink_remove(struct winlinks *, struct winlink *);
1834 struct winlink  *winlink_next(struct winlink *);
1835 struct winlink  *winlink_previous(struct winlink *);
1836 struct winlink  *winlink_next_by_number(struct winlink *, struct session *,
1837                      int);
1838 struct winlink  *winlink_previous_by_number(struct winlink *, struct session *,
1839                      int);
1840 void             winlink_stack_push(struct winlink_stack *, struct winlink *);
1841 void             winlink_stack_remove(struct winlink_stack *, struct winlink *);
1842 int              window_index(struct window *, u_int *);
1843 struct window   *window_create1(u_int, u_int);
1844 struct window   *window_create(const char *, const char *, const char *,
1845                      const char *, struct environ *, struct termios *,
1846                      u_int, u_int, u_int, char **);
1847 void             window_destroy(struct window *);
1848 void             window_set_active_at(struct window *, u_int, u_int);
1849 void             window_set_active_pane(struct window *, struct window_pane *);
1850 struct window_pane *window_add_pane(struct window *, u_int);
1851 void             window_resize(struct window *, u_int, u_int);
1852 void             window_remove_pane(struct window *, struct window_pane *);
1853 struct window_pane *window_pane_at_index(struct window *, u_int);
1854 struct window_pane *window_pane_next_by_number(struct window *,
1855                         struct window_pane *, u_int);
1856 struct window_pane *window_pane_previous_by_number(struct window *,
1857                         struct window_pane *, u_int);
1858 u_int            window_pane_index(struct window *, struct window_pane *);
1859 u_int            window_count_panes(struct window *);
1860 void             window_destroy_panes(struct window *);
1861 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
1862 void             window_pane_destroy(struct window_pane *);
1863 int              window_pane_spawn(struct window_pane *, const char *,
1864                      const char *, const char *, struct environ *,
1865                      struct termios *, char **);
1866 void             window_pane_resize(struct window_pane *, u_int, u_int);
1867 void             window_pane_alternate_on(
1868                      struct window_pane *, struct grid_cell *);
1869 void             window_pane_alternate_off(
1870                      struct window_pane *, struct grid_cell *);
1871 int              window_pane_set_mode(
1872                      struct window_pane *, const struct window_mode *);
1873 void             window_pane_reset_mode(struct window_pane *);
1874 void             window_pane_key(struct window_pane *, struct session *, int);
1875 void             window_pane_mouse(struct window_pane *,
1876                      struct session *, struct mouse_event *);
1877 int              window_pane_visible(struct window_pane *);
1878 char            *window_pane_search(
1879                      struct window_pane *, const char *, u_int *);
1880 char            *window_printable_flags(struct session *, struct winlink *);
1881
1882 struct window_pane *window_pane_find_up(struct window_pane *);
1883 struct window_pane *window_pane_find_down(struct window_pane *);
1884 struct window_pane *window_pane_find_left(struct window_pane *);
1885 struct window_pane *window_pane_find_right(struct window_pane *);
1886
1887 /* layout.c */
1888 u_int            layout_count_cells(struct layout_cell *);
1889 struct layout_cell *layout_create_cell(struct layout_cell *);
1890 void             layout_free_cell(struct layout_cell *);
1891 void             layout_print_cell(struct layout_cell *, const char *, u_int);
1892 void             layout_destroy_cell(struct layout_cell *, struct layout_cell **);
1893 void             layout_set_size(
1894                      struct layout_cell *, u_int, u_int, u_int, u_int);
1895 void             layout_make_leaf(
1896                      struct layout_cell *, struct window_pane *);
1897 void             layout_make_node(struct layout_cell *, enum layout_type);
1898 void             layout_fix_offsets(struct layout_cell *);
1899 void             layout_fix_panes(struct window *, u_int, u_int);
1900 u_int            layout_resize_check(struct layout_cell *, enum layout_type);
1901 void             layout_resize_adjust(
1902                      struct layout_cell *, enum layout_type, int);
1903 void             layout_init(struct window *);
1904 void             layout_free(struct window *);
1905 void             layout_resize(struct window *, u_int, u_int);
1906 void             layout_resize_pane(
1907                      struct window_pane *, enum layout_type, int);
1908 void             layout_assign_pane(struct layout_cell *, struct window_pane *);
1909 struct layout_cell *layout_split_pane(
1910                      struct window_pane *, enum layout_type, int);
1911 void             layout_close_pane(struct window_pane *);
1912
1913 /* layout-custom.c */
1914 char            *layout_dump(struct window *);
1915 int              layout_parse(struct window *, const char *);
1916
1917 /* layout-set.c */
1918 const char      *layout_set_name(u_int);
1919 int              layout_set_lookup(const char *);
1920 u_int            layout_set_select(struct window *, u_int);
1921 u_int            layout_set_next(struct window *);
1922 u_int            layout_set_previous(struct window *);
1923 void             layout_set_active_changed(struct window *);
1924
1925 /* layout-string.c */
1926 struct layout_cell *layout_find_string(struct window *, const char *);
1927 struct layout_cell *layout_find_bottomright(struct layout_cell *);
1928
1929 /* window-clock.c */
1930 extern const struct window_mode window_clock_mode;
1931
1932 /* window-copy.c */
1933 extern const struct window_mode window_copy_mode;
1934 void             window_copy_init_from_pane(struct window_pane *);
1935 void             window_copy_init_for_output(struct window_pane *);
1936 void             window_copy_add(struct window_pane *, const char *, ...);
1937 void             window_copy_vadd(struct window_pane *, const char *, va_list);
1938 void             window_copy_pageup(struct window_pane *);
1939
1940 /* window-choose.c */
1941 extern const struct window_mode window_choose_mode;
1942 void             window_choose_vadd(
1943                      struct window_pane *, int, const char *, va_list);
1944 void printflike3 window_choose_add(
1945                      struct window_pane *, int, const char *, ...);
1946 void             window_choose_ready(struct window_pane *,
1947                      u_int, void (*)(void *, int), void (*)(void *), void *);
1948
1949 /* names.c */
1950 void             queue_window_name(struct window *);
1951 char            *default_window_name(struct window *);
1952
1953 /* signal.c */
1954 void set_signals(void(*)(int, short, void *));
1955 void clear_signals(int);
1956
1957 /* session.c */
1958 extern struct sessions sessions;
1959 extern struct sessions dead_sessions;
1960 extern struct session_groups session_groups;
1961 int     session_cmp(struct session *, struct session *);
1962 RB_PROTOTYPE(sessions, session, entry, session_cmp);
1963 int              session_alive(struct session *);
1964 struct session  *session_find(const char *);
1965 struct session  *session_find_by_index(u_int);
1966 struct session  *session_create(const char *, const char *, const char *,
1967                      struct environ *, struct termios *, int, u_int, u_int,
1968                      char **);
1969 void             session_destroy(struct session *);
1970 void             session_update_activity(struct session *);
1971 struct session  *session_next_session(struct session *);
1972 struct session  *session_previous_session(struct session *);
1973 struct winlink  *session_new(struct session *,
1974                      const char *, const char *, const char *, int, char **);
1975 struct winlink  *session_attach(
1976                      struct session *, struct window *, int, char **);
1977 int              session_detach(struct session *, struct winlink *);
1978 struct winlink*  session_has(struct session *, struct window *);
1979 int              session_next(struct session *, int);
1980 int              session_previous(struct session *, int);
1981 int              session_select(struct session *, int);
1982 int              session_last(struct session *);
1983 struct session_group *session_group_find(struct session *);
1984 u_int            session_group_index(struct session_group *);
1985 void             session_group_add(struct session *, struct session *);
1986 void             session_group_remove(struct session *);
1987 void             session_group_synchronize_to(struct session *);
1988 void             session_group_synchronize_from(struct session *);
1989 void             session_group_synchronize1(struct session *, struct session *);
1990
1991 /* utf8.c */
1992 void    utf8_build(void);
1993 int     utf8_open(struct utf8_data *, u_char);
1994 int     utf8_append(struct utf8_data *, u_char);
1995 u_int   utf8_combine(const struct utf8_data *);
1996 u_int   utf8_split2(u_int, u_char *);
1997
1998 /* procname.c */
1999 char   *get_proc_name(int, char *);
2000
2001 /* log.c */
2002 void             log_open_tty(int);
2003 void             log_open_file(int, const char *);
2004 void             log_close(void);
2005 void printflike1 log_warn(const char *, ...);
2006 void printflike1 log_warnx(const char *, ...);
2007 void printflike1 log_info(const char *, ...);
2008 void printflike1 log_debug(const char *, ...);
2009 void printflike1 log_debug2(const char *, ...);
2010 __dead void printflike1 log_fatal(const char *, ...);
2011 __dead void printflike1 log_fatalx(const char *, ...);
2012
2013 /* xmalloc.c */
2014 char            *xstrdup(const char *);
2015 void            *xcalloc(size_t, size_t);
2016 void            *xmalloc(size_t);
2017 void            *xrealloc(void *, size_t, size_t);
2018 void             xfree(void *);
2019 int printflike2  xasprintf(char **, const char *, ...);
2020 int              xvasprintf(char **, const char *, va_list);
2021 int printflike3  xsnprintf(char *, size_t, const char *, ...);
2022 int              xvsnprintf(char *, size_t, const char *, va_list);
2023
2024 #endif /* TMUX_H */