Annotation of src/usr.bin/tmux/window.c, Revision 1.122
1.122 ! nicm 1: /* $OpenBSD: window.c,v 1.121 2015/04/22 15:05:03 nicm Exp $ */
1.1 nicm 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: #include <sys/types.h>
20:
21: #include <errno.h>
22: #include <fcntl.h>
1.5 nicm 23: #include <fnmatch.h>
1.1 nicm 24: #include <stdint.h>
25: #include <stdlib.h>
26: #include <string.h>
27: #include <termios.h>
28: #include <unistd.h>
29: #include <util.h>
30:
31: #include "tmux.h"
32:
33: /*
1.14 nicm 34: * Each window is attached to a number of panes, each of which is a pty. This
1.1 nicm 35: * file contains code to handle them.
36: *
37: * A pane has two buffers attached, these are filled and emptied by the main
38: * server poll loop. Output data is received from pty's in screen format,
39: * translated and returned as a series of escape sequences and strings via
40: * input_parse (in input.c). Input data is received as key codes and written
41: * directly via input_key.
42: *
43: * Each pane also has a "virtual" screen (screen.c) which contains the current
44: * state and is redisplayed when the window is reattached to a client.
45: *
46: * Windows are stored directly on a global array and wrapped in any number of
47: * winlink structs to be linked onto local session RB trees. A reference count
48: * is maintained and a window removed from the global list and destroyed when
49: * it reaches zero.
50: */
51:
52: /* Global window list. */
53: struct windows windows;
54:
1.64 nicm 55: /* Global panes tree. */
56: struct window_pane_tree all_window_panes;
1.71 nicm 57: u_int next_window_pane_id;
58: u_int next_window_id;
1.109 nicm 59: u_int next_active_point;
1.100 nicm 60:
1.75 nicm 61: void window_pane_timer_callback(int, short, void *);
1.37 nicm 62: void window_pane_read_callback(struct bufferevent *, void *);
63: void window_pane_error_callback(struct bufferevent *, short, void *);
64:
1.109 nicm 65: struct window_pane *window_pane_choose_best(struct window_pane_list *);
66:
1.122 ! nicm 67: RB_GENERATE(windows, window, entry, window_cmp);
! 68:
! 69: int
! 70: window_cmp(struct window *w1, struct window *w2)
! 71: {
! 72: return (w1->id - w2->id);
! 73: }
! 74:
1.1 nicm 75: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
76:
77: int
78: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
79: {
80: return (wl1->idx - wl2->idx);
1.12 nicm 81: }
82:
1.64 nicm 83: RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
84:
85: int
86: window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
87: {
88: return (wp1->id - wp2->id);
89: }
90:
1.12 nicm 91: struct winlink *
92: winlink_find_by_window(struct winlinks *wwl, struct window *w)
93: {
94: struct winlink *wl;
95:
96: RB_FOREACH(wl, winlinks, wwl) {
97: if (wl->window == w)
98: return (wl);
99: }
100:
101: return (NULL);
1.1 nicm 102: }
103:
104: struct winlink *
105: winlink_find_by_index(struct winlinks *wwl, int idx)
106: {
107: struct winlink wl;
108:
109: if (idx < 0)
110: fatalx("bad index");
111:
112: wl.idx = idx;
113: return (RB_FIND(winlinks, wwl, &wl));
114: }
115:
1.71 nicm 116: struct winlink *
117: winlink_find_by_window_id(struct winlinks *wwl, u_int id)
118: {
119: struct winlink *wl;
120:
121: RB_FOREACH(wl, winlinks, wwl) {
122: if (wl->window->id == id)
123: return (wl);
124: }
1.78 nicm 125: return (NULL);
1.71 nicm 126: }
127:
1.1 nicm 128: int
1.22 nicm 129: winlink_next_index(struct winlinks *wwl, int idx)
1.1 nicm 130: {
1.22 nicm 131: int i;
1.1 nicm 132:
1.22 nicm 133: i = idx;
134: do {
1.1 nicm 135: if (winlink_find_by_index(wwl, i) == NULL)
136: return (i);
1.22 nicm 137: if (i == INT_MAX)
138: i = 0;
139: else
140: i++;
141: } while (i != idx);
142: return (-1);
1.1 nicm 143: }
144:
145: u_int
146: winlink_count(struct winlinks *wwl)
147: {
148: struct winlink *wl;
149: u_int n;
150:
151: n = 0;
152: RB_FOREACH(wl, winlinks, wwl)
153: n++;
154:
155: return (n);
156: }
157:
158: struct winlink *
1.63 nicm 159: winlink_add(struct winlinks *wwl, int idx)
1.1 nicm 160: {
161: struct winlink *wl;
162:
1.22 nicm 163: if (idx < 0) {
164: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
165: return (NULL);
166: } else if (winlink_find_by_index(wwl, idx) != NULL)
1.1 nicm 167: return (NULL);
168:
169: wl = xcalloc(1, sizeof *wl);
170: wl->idx = idx;
171: RB_INSERT(winlinks, wwl, wl);
172:
1.63 nicm 173: return (wl);
174: }
175:
176: void
177: winlink_set_window(struct winlink *wl, struct window *w)
178: {
179: wl->window = w;
1.1 nicm 180: w->references++;
181: }
182:
183: void
184: winlink_remove(struct winlinks *wwl, struct winlink *wl)
185: {
186: struct window *w = wl->window;
187:
188: RB_REMOVE(winlinks, wwl, wl);
1.82 nicm 189: free(wl->status_text);
190: free(wl);
1.1 nicm 191:
1.84 nicm 192: if (w != NULL)
193: window_remove_ref(w);
1.1 nicm 194: }
195:
196: struct winlink *
1.41 nicm 197: winlink_next(struct winlink *wl)
1.1 nicm 198: {
199: return (RB_NEXT(winlinks, wwl, wl));
200: }
201:
202: struct winlink *
1.41 nicm 203: winlink_previous(struct winlink *wl)
1.1 nicm 204: {
205: return (RB_PREV(winlinks, wwl, wl));
1.52 nicm 206: }
207:
208: struct winlink *
1.53 nicm 209: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 210: {
211: for (; n > 0; n--) {
212: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
1.53 nicm 213: wl = RB_MIN(winlinks, &s->windows);
1.52 nicm 214: }
215:
216: return (wl);
217: }
218:
219: struct winlink *
1.53 nicm 220: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 221: {
222: for (; n > 0; n--) {
223: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
1.53 nicm 224: wl = RB_MAX(winlinks, &s->windows);
1.52 nicm 225: }
226:
227: return (wl);
1.1 nicm 228: }
229:
230: void
231: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
232: {
233: if (wl == NULL)
234: return;
235:
236: winlink_stack_remove(stack, wl);
1.28 nicm 237: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 238: }
239:
240: void
241: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
242: {
243: struct winlink *wl2;
244:
245: if (wl == NULL)
246: return;
1.42 nicm 247:
1.28 nicm 248: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 249: if (wl2 == wl) {
1.28 nicm 250: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 251: return;
252: }
253: }
254: }
255:
256: struct window *
1.71 nicm 257: window_find_by_id(u_int id)
258: {
1.122 ! nicm 259: struct window w;
1.71 nicm 260:
1.122 ! nicm 261: w.id = id;
! 262: return (RB_FIND(windows, &windows, &w));
1.71 nicm 263: }
264:
265: struct window *
1.1 nicm 266: window_create1(u_int sx, u_int sy)
267: {
268: struct window *w;
269:
1.38 nicm 270: w = xcalloc(1, sizeof *w);
1.1 nicm 271: w->name = NULL;
272: w->flags = 0;
273:
274: TAILQ_INIT(&w->panes);
275: w->active = NULL;
1.14 nicm 276:
1.17 nicm 277: w->lastlayout = -1;
1.14 nicm 278: w->layout_root = NULL;
1.42 nicm 279:
1.1 nicm 280: w->sx = sx;
281: w->sy = sy;
282:
1.7 nicm 283: options_init(&w->options, &global_w_options);
1.79 nicm 284: if (options_get_number(&w->options, "automatic-rename"))
285: queue_window_name(w);
1.1 nicm 286:
287: w->references = 0;
288:
1.122 ! nicm 289: w->id = next_window_id++;
! 290: RB_INSERT (windows, &windows, w);
! 291:
1.1 nicm 292: return (w);
293: }
294:
295: struct window *
1.110 nicm 296: window_create(const char *name, int argc, char **argv, const char *path,
1.107 nicm 297: const char *shell, int cwd, struct environ *env, struct termios *tio,
1.91 nicm 298: u_int sx, u_int sy, u_int hlimit, char **cause)
1.1 nicm 299: {
1.14 nicm 300: struct window *w;
301: struct window_pane *wp;
1.1 nicm 302:
303: w = window_create1(sx, sy);
1.16 nicm 304: wp = window_add_pane(w, hlimit);
1.93 nicm 305: layout_init(w, wp);
1.91 nicm 306:
1.110 nicm 307: if (window_pane_spawn(wp, argc, argv, path, shell, cwd, env, tio,
1.107 nicm 308: cause) != 0) {
1.1 nicm 309: window_destroy(w);
310: return (NULL);
311: }
1.91 nicm 312:
1.1 nicm 313: w->active = TAILQ_FIRST(&w->panes);
314: if (name != NULL) {
315: w->name = xstrdup(name);
316: options_set_number(&w->options, "automatic-rename", 0);
317: } else
318: w->name = default_window_name(w);
1.91 nicm 319:
1.1 nicm 320: return (w);
321: }
322:
323: void
324: window_destroy(struct window *w)
325: {
1.93 nicm 326: window_unzoom(w);
327:
1.122 ! nicm 328: RB_REMOVE(windows, &windows, w);
1.1 nicm 329:
1.14 nicm 330: if (w->layout_root != NULL)
331: layout_free(w);
332:
1.73 nicm 333: if (event_initialized(&w->name_timer))
334: evtimer_del(&w->name_timer);
1.38 nicm 335:
1.1 nicm 336: options_free(&w->options);
337:
338: window_destroy_panes(w);
339:
1.82 nicm 340: free(w->name);
341: free(w);
1.84 nicm 342: }
343:
344: void
345: window_remove_ref(struct window *w)
346: {
347: if (w->references == 0)
348: fatal("bad reference count");
349: w->references--;
350: if (w->references == 0)
351: window_destroy(w);
1.72 nicm 352: }
353:
354: void
355: window_set_name(struct window *w, const char *new_name)
356: {
1.82 nicm 357: free(w->name);
1.72 nicm 358: w->name = xstrdup(new_name);
1.74 nicm 359: notify_window_renamed(w);
1.1 nicm 360: }
361:
1.15 nicm 362: void
1.1 nicm 363: window_resize(struct window *w, u_int sx, u_int sy)
364: {
365: w->sx = sx;
366: w->sy = sy;
367: }
368:
1.114 nicm 369: int
1.118 nicm 370: window_has_pane(struct window *w, struct window_pane *wp)
371: {
372: struct window_pane *wp1;
373:
374: TAILQ_FOREACH(wp1, &w->panes, entry) {
375: if (wp1 == wp)
376: return (1);
377: }
378: return (0);
379: }
380:
381: int
1.1 nicm 382: window_set_active_pane(struct window *w, struct window_pane *wp)
383: {
1.59 nicm 384: if (wp == w->active)
1.114 nicm 385: return (0);
1.58 nicm 386: w->last = w->active;
1.1 nicm 387: w->active = wp;
1.10 nicm 388: while (!window_pane_visible(w->active)) {
1.1 nicm 389: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 390: if (w->active == NULL)
391: w->active = TAILQ_LAST(&w->panes, window_panes);
392: if (w->active == wp)
1.114 nicm 393: return (1);
1.29 nicm 394: }
1.109 nicm 395: w->active->active_point = next_active_point++;
1.114 nicm 396: return (1);
1.29 nicm 397: }
398:
1.66 nicm 399: struct window_pane *
400: window_get_active_at(struct window *w, u_int x, u_int y)
1.29 nicm 401: {
402: struct window_pane *wp;
403:
404: TAILQ_FOREACH(wp, &w->panes, entry) {
1.66 nicm 405: if (!window_pane_visible(wp))
1.29 nicm 406: continue;
1.66 nicm 407: if (x < wp->xoff || x > wp->xoff + wp->sx)
1.29 nicm 408: continue;
1.66 nicm 409: if (y < wp->yoff || y > wp->yoff + wp->sy)
1.29 nicm 410: continue;
1.66 nicm 411: return (wp);
412: }
413: return (NULL);
414: }
415:
416: void
417: window_set_active_at(struct window *w, u_int x, u_int y)
418: {
419: struct window_pane *wp;
420:
421: wp = window_get_active_at(w, x, y);
422: if (wp != NULL && wp != w->active)
1.29 nicm 423: window_set_active_pane(w, wp);
1.66 nicm 424: }
425:
426: struct window_pane *
427: window_find_string(struct window *w, const char *s)
428: {
429: u_int x, y;
430:
431: x = w->sx / 2;
432: y = w->sy / 2;
433:
434: if (strcasecmp(s, "top") == 0)
435: y = 0;
436: else if (strcasecmp(s, "bottom") == 0)
437: y = w->sy - 1;
438: else if (strcasecmp(s, "left") == 0)
439: x = 0;
440: else if (strcasecmp(s, "right") == 0)
441: x = w->sx - 1;
442: else if (strcasecmp(s, "top-left") == 0) {
443: x = 0;
444: y = 0;
445: } else if (strcasecmp(s, "top-right") == 0) {
446: x = w->sx - 1;
447: y = 0;
448: } else if (strcasecmp(s, "bottom-left") == 0) {
449: x = 0;
450: y = w->sy - 1;
451: } else if (strcasecmp(s, "bottom-right") == 0) {
452: x = w->sx - 1;
453: y = w->sy - 1;
454: } else
455: return (NULL);
456:
457: return (window_get_active_at(w, x, y));
1.1 nicm 458: }
459:
1.93 nicm 460: int
461: window_zoom(struct window_pane *wp)
462: {
463: struct window *w = wp->window;
464: struct window_pane *wp1;
465:
466: if (w->flags & WINDOW_ZOOMED)
467: return (-1);
468:
469: if (!window_pane_visible(wp))
470: return (-1);
1.94 nicm 471:
472: if (window_count_panes(w) == 1)
473: return (-1);
474:
1.93 nicm 475: if (w->active != wp)
476: window_set_active_pane(w, wp);
477:
478: TAILQ_FOREACH(wp1, &w->panes, entry) {
479: wp1->saved_layout_cell = wp1->layout_cell;
480: wp1->layout_cell = NULL;
481: }
482:
483: w->saved_layout_root = w->layout_root;
484: layout_init(w, wp);
485: w->flags |= WINDOW_ZOOMED;
1.115 nicm 486: notify_window_layout_changed(w);
1.93 nicm 487:
488: return (0);
489: }
490:
491: int
492: window_unzoom(struct window *w)
493: {
1.97 nicm 494: struct window_pane *wp;
1.93 nicm 495:
496: if (!(w->flags & WINDOW_ZOOMED))
497: return (-1);
498:
499: w->flags &= ~WINDOW_ZOOMED;
500: layout_free(w);
501: w->layout_root = w->saved_layout_root;
1.120 nicm 502: w->saved_layout_root = NULL;
1.93 nicm 503:
1.97 nicm 504: TAILQ_FOREACH(wp, &w->panes, entry) {
505: wp->layout_cell = wp->saved_layout_cell;
506: wp->saved_layout_cell = NULL;
1.93 nicm 507: }
508: layout_fix_panes(w, w->sx, w->sy);
1.115 nicm 509: notify_window_layout_changed(w);
1.93 nicm 510:
511: return (0);
512: }
513:
1.1 nicm 514: struct window_pane *
1.16 nicm 515: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 516: {
517: struct window_pane *wp;
518:
1.14 nicm 519: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 520: if (TAILQ_EMPTY(&w->panes))
521: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
522: else
523: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
524: return (wp);
525: }
526:
527: void
1.105 nicm 528: window_lost_pane(struct window *w, struct window_pane *wp)
1.1 nicm 529: {
1.57 nicm 530: if (wp == w->active) {
1.58 nicm 531: w->active = w->last;
532: w->last = NULL;
533: if (w->active == NULL) {
534: w->active = TAILQ_PREV(wp, window_panes, entry);
535: if (w->active == NULL)
536: w->active = TAILQ_NEXT(wp, entry);
537: }
538: } else if (wp == w->last)
539: w->last = NULL;
1.105 nicm 540: }
541:
542: void
543: window_remove_pane(struct window *w, struct window_pane *wp)
544: {
545: window_lost_pane(w, wp);
1.1 nicm 546:
547: TAILQ_REMOVE(&w->panes, wp, entry);
548: window_pane_destroy(wp);
549: }
550:
551: struct window_pane *
552: window_pane_at_index(struct window *w, u_int idx)
553: {
554: struct window_pane *wp;
555: u_int n;
556:
1.67 nicm 557: n = options_get_number(&w->options, "pane-base-index");
1.1 nicm 558: TAILQ_FOREACH(wp, &w->panes, entry) {
559: if (n == idx)
560: return (wp);
561: n++;
562: }
563: return (NULL);
1.53 nicm 564: }
565:
566: struct window_pane *
567: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
568: {
569: for (; n > 0; n--) {
570: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
571: wp = TAILQ_FIRST(&w->panes);
572: }
573:
574: return (wp);
575: }
576:
577: struct window_pane *
578: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
579: u_int n)
580: {
581: for (; n > 0; n--) {
582: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
583: wp = TAILQ_LAST(&w->panes, window_panes);
584: }
585:
586: return (wp);
1.13 nicm 587: }
588:
1.69 nicm 589: int
590: window_pane_index(struct window_pane *wp, u_int *i)
1.13 nicm 591: {
592: struct window_pane *wq;
1.69 nicm 593: struct window *w = wp->window;
1.13 nicm 594:
1.69 nicm 595: *i = options_get_number(&w->options, "pane-base-index");
1.13 nicm 596: TAILQ_FOREACH(wq, &w->panes, entry) {
1.69 nicm 597: if (wp == wq) {
598: return (0);
599: }
600: (*i)++;
1.13 nicm 601: }
1.69 nicm 602:
603: return (-1);
1.1 nicm 604: }
605:
606: u_int
607: window_count_panes(struct window *w)
608: {
609: struct window_pane *wp;
610: u_int n;
611:
612: n = 0;
613: TAILQ_FOREACH(wp, &w->panes, entry)
614: n++;
615: return (n);
616: }
617:
618: void
619: window_destroy_panes(struct window *w)
620: {
621: struct window_pane *wp;
622:
623: while (!TAILQ_EMPTY(&w->panes)) {
624: wp = TAILQ_FIRST(&w->panes);
625: TAILQ_REMOVE(&w->panes, wp, entry);
626: window_pane_destroy(wp);
627: }
1.61 nicm 628: }
629:
630: /* Return list of printable window flag symbols. No flags is just a space. */
631: char *
632: window_printable_flags(struct session *s, struct winlink *wl)
633: {
1.119 nicm 634: char flags[32];
1.61 nicm 635: int pos;
636:
637: pos = 0;
638: if (wl->flags & WINLINK_ACTIVITY)
639: flags[pos++] = '#';
640: if (wl->flags & WINLINK_BELL)
641: flags[pos++] = '!';
642: if (wl->flags & WINLINK_SILENCE)
643: flags[pos++] = '~';
644: if (wl == s->curw)
645: flags[pos++] = '*';
646: if (wl == TAILQ_FIRST(&s->lastw))
647: flags[pos++] = '-';
1.93 nicm 648: if (wl->window->flags & WINDOW_ZOOMED)
649: flags[pos++] = 'Z';
1.61 nicm 650: if (pos == 0)
651: flags[pos++] = ' ';
652: flags[pos] = '\0';
653: return (xstrdup(flags));
1.1 nicm 654: }
655:
1.64 nicm 656: /* Find pane in global tree by id. */
657: struct window_pane *
658: window_pane_find_by_id(u_int id)
659: {
660: struct window_pane wp;
661:
662: wp.id = id;
663: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
664: }
665:
1.1 nicm 666: struct window_pane *
667: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
668: {
669: struct window_pane *wp;
670:
671: wp = xcalloc(1, sizeof *wp);
672: wp->window = w;
673:
1.71 nicm 674: wp->id = next_window_pane_id++;
1.64 nicm 675: RB_INSERT(window_pane_tree, &all_window_panes, wp);
676:
1.110 nicm 677: wp->argc = 0;
678: wp->argv = NULL;
1.23 nicm 679: wp->shell = NULL;
1.99 nicm 680: wp->cwd = -1;
1.1 nicm 681:
682: wp->fd = -1;
1.37 nicm 683: wp->event = NULL;
1.1 nicm 684:
685: wp->mode = NULL;
1.14 nicm 686:
687: wp->layout_cell = NULL;
1.1 nicm 688:
689: wp->xoff = 0;
1.42 nicm 690: wp->yoff = 0;
1.1 nicm 691:
692: wp->sx = sx;
693: wp->sy = sy;
694:
1.32 nicm 695: wp->pipe_fd = -1;
696: wp->pipe_off = 0;
1.36 nicm 697: wp->pipe_event = NULL;
1.32 nicm 698:
1.9 nicm 699: wp->saved_grid = NULL;
1.117 nicm 700:
701: memcpy(&wp->colgc, &grid_default_cell, sizeof wp->colgc);
1.9 nicm 702:
1.1 nicm 703: screen_init(&wp->base, sx, sy, hlimit);
704: wp->screen = &wp->base;
705:
706: input_init(wp);
707:
708: return (wp);
709: }
710:
711: void
712: window_pane_destroy(struct window_pane *wp)
713: {
1.55 nicm 714: window_pane_reset_mode(wp);
715:
1.76 nicm 716: if (event_initialized(&wp->changes_timer))
717: evtimer_del(&wp->changes_timer);
1.75 nicm 718:
1.37 nicm 719: if (wp->fd != -1) {
1.70 nicm 720: bufferevent_free(wp->event);
1.1 nicm 721: close(wp->fd);
1.37 nicm 722: }
1.1 nicm 723:
724: input_free(wp);
725:
726: screen_free(&wp->base);
1.9 nicm 727: if (wp->saved_grid != NULL)
728: grid_destroy(wp->saved_grid);
1.1 nicm 729:
1.32 nicm 730: if (wp->pipe_fd != -1) {
1.70 nicm 731: bufferevent_free(wp->pipe_event);
1.32 nicm 732: close(wp->pipe_fd);
733: }
734:
1.64 nicm 735: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
736:
1.99 nicm 737: close(wp->cwd);
1.82 nicm 738: free(wp->shell);
1.110 nicm 739: cmd_free_argv(wp->argc, wp->argv);
1.82 nicm 740: free(wp);
1.1 nicm 741: }
742:
743: int
1.110 nicm 744: window_pane_spawn(struct window_pane *wp, int argc, char **argv,
745: const char *path, const char *shell, int cwd, struct environ *env,
746: struct termios *tio, char **cause)
1.1 nicm 747: {
1.47 nicm 748: struct winsize ws;
1.110 nicm 749: char *argv0, *cmd, **argvp, paneid[16];
750: const char *ptr, *first;
1.47 nicm 751: struct termios tio2;
1.110 nicm 752: int i;
1.1 nicm 753:
1.37 nicm 754: if (wp->fd != -1) {
1.70 nicm 755: bufferevent_free(wp->event);
1.1 nicm 756: close(wp->fd);
1.37 nicm 757: }
1.110 nicm 758: if (argc > 0) {
759: cmd_free_argv(wp->argc, wp->argv);
760: wp->argc = argc;
761: wp->argv = cmd_copy_argv(argc, argv);
1.1 nicm 762: }
1.23 nicm 763: if (shell != NULL) {
1.82 nicm 764: free(wp->shell);
1.23 nicm 765: wp->shell = xstrdup(shell);
766: }
1.99 nicm 767: if (cwd != -1) {
768: close(wp->cwd);
769: wp->cwd = dup(cwd);
1.1 nicm 770: }
1.91 nicm 771:
1.110 nicm 772: cmd = cmd_stringify_argv(wp->argc, wp->argv);
773: log_debug("spawn: %s -- %s", wp->shell, cmd);
774: for (i = 0; i < wp->argc; i++)
775: log_debug("spawn: argv[%d] = %s", i, wp->argv[i]);
1.1 nicm 776:
777: memset(&ws, 0, sizeof ws);
778: ws.ws_col = screen_size_x(&wp->base);
779: ws.ws_row = screen_size_y(&wp->base);
780:
1.42 nicm 781: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 782: case -1:
783: wp->fd = -1;
784: xasprintf(cause, "%s: %s", cmd, strerror(errno));
1.110 nicm 785: free(cmd);
1.1 nicm 786: return (-1);
787: case 0:
1.99 nicm 788: if (fchdir(wp->cwd) != 0)
1.1 nicm 789: chdir("/");
1.25 nicm 790:
791: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
792: fatal("tcgetattr failed");
793: if (tio != NULL)
794: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
795: tio2.c_cc[VERASE] = '\177';
796: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
797: fatal("tcgetattr failed");
1.18 nicm 798:
1.56 nicm 799: closefrom(STDERR_FILENO + 1);
800:
1.107 nicm 801: if (path != NULL)
802: environ_set(env, "PATH", path);
1.64 nicm 803: xsnprintf(paneid, sizeof paneid, "%%%u", wp->id);
804: environ_set(env, "TMUX_PANE", paneid);
1.47 nicm 805: environ_push(env);
1.18 nicm 806:
1.54 nicm 807: clear_signals(1);
1.1 nicm 808: log_close();
809:
1.80 nicm 810: setenv("SHELL", wp->shell, 1);
811: ptr = strrchr(wp->shell, '/');
812:
1.110 nicm 813: /*
814: * If given one argument, assume it should be passed to sh -c;
815: * with more than one argument, use execvp(). If there is no
816: * arguments, create a login shell.
817: */
818: if (wp->argc > 0) {
819: if (wp->argc != 1) {
820: /* Copy to ensure argv ends in NULL. */
821: argvp = cmd_copy_argv(wp->argc, wp->argv);
822: execvp(argvp[0], argvp);
823: fatal("execvp failed");
824: }
825: first = wp->argv[0];
826:
1.80 nicm 827: if (ptr != NULL && *(ptr + 1) != '\0')
828: xasprintf(&argv0, "%s", ptr + 1);
829: else
830: xasprintf(&argv0, "%s", wp->shell);
1.110 nicm 831: execl(wp->shell, argv0, "-c", first, (char *)NULL);
1.8 nicm 832: fatal("execl failed");
833: }
1.23 nicm 834: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 835: xasprintf(&argv0, "-%s", ptr + 1);
836: else
1.23 nicm 837: xasprintf(&argv0, "-%s", wp->shell);
1.110 nicm 838: execl(wp->shell, argv0, (char *)NULL);
1.1 nicm 839: fatal("execl failed");
840: }
841:
1.62 nicm 842: setblocking(wp->fd, 0);
843:
1.110 nicm 844: wp->event = bufferevent_new(wp->fd, window_pane_read_callback, NULL,
845: window_pane_error_callback, wp);
1.37 nicm 846: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 847:
1.110 nicm 848: free(cmd);
1.1 nicm 849: return (0);
1.75 nicm 850: }
851:
852: void
853: window_pane_timer_start(struct window_pane *wp)
854: {
855: struct timeval tv;
856:
857: tv.tv_sec = 0;
858: tv.tv_usec = 1000;
859:
860: evtimer_del(&wp->changes_timer);
861: evtimer_set(&wp->changes_timer, window_pane_timer_callback, wp);
862: evtimer_add(&wp->changes_timer, &tv);
863: }
864:
865: void
866: window_pane_timer_callback(unused int fd, unused short events, void *data)
867: {
868: struct window_pane *wp = data;
869: struct window *w = wp->window;
870: u_int interval, trigger;
871:
872: interval = options_get_number(&w->options, "c0-change-interval");
873: trigger = options_get_number(&w->options, "c0-change-trigger");
874:
875: if (wp->changes_redraw++ == interval) {
876: wp->flags |= PANE_REDRAW;
877: wp->changes_redraw = 0;
878: }
879:
880: if (trigger == 0 || wp->changes < trigger) {
881: wp->flags |= PANE_REDRAW;
882: wp->flags &= ~PANE_DROP;
883: } else
884: window_pane_timer_start(wp);
885: wp->changes = 0;
1.1 nicm 886: }
887:
1.15 nicm 888: void
1.37 nicm 889: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
890: {
1.46 nicm 891: struct window_pane *wp = data;
892: char *new_data;
893: size_t new_size;
894:
895: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
896: if (wp->pipe_fd != -1 && new_size > 0) {
897: new_data = EVBUFFER_DATA(wp->event->input);
898: bufferevent_write(wp->pipe_event, new_data, new_size);
899: }
900:
901: input_parse(wp);
1.37 nicm 902:
1.46 nicm 903: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.60 nicm 904:
905: /*
906: * If we get here, we're not outputting anymore, so set the silence
907: * flag on the window.
908: */
909: wp->window->flags |= WINDOW_SILENCE;
910: if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
911: fatal("gettimeofday failed.");
1.37 nicm 912: }
913:
914: void
915: window_pane_error_callback(
916: unused struct bufferevent *bufev, unused short what, void *data)
917: {
918: struct window_pane *wp = data;
919:
1.39 nicm 920: server_destroy_pane(wp);
1.37 nicm 921: }
922:
923: void
1.1 nicm 924: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
925: {
926: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 927: return;
1.1 nicm 928: wp->sx = sx;
929: wp->sy = sy;
930:
1.89 nicm 931: screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
1.1 nicm 932: if (wp->mode != NULL)
933: wp->mode->resize(wp, sx, sy);
1.95 nicm 934:
935: wp->flags |= PANE_RESIZE;
1.44 nicm 936: }
937:
938: /*
939: * Enter alternative screen mode. A copy of the visible screen is saved and the
940: * history is not updated
941: */
942: void
1.87 nicm 943: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
944: int cursor)
1.44 nicm 945: {
946: struct screen *s = &wp->base;
947: u_int sx, sy;
948:
949: if (wp->saved_grid != NULL)
950: return;
951: if (!options_get_number(&wp->window->options, "alternate-screen"))
952: return;
953: sx = screen_size_x(s);
954: sy = screen_size_y(s);
955:
956: wp->saved_grid = grid_create(sx, sy, 0);
957: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
1.87 nicm 958: if (cursor) {
959: wp->saved_cx = s->cx;
960: wp->saved_cy = s->cy;
961: }
1.44 nicm 962: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
963:
964: grid_view_clear(s->grid, 0, 0, sx, sy);
965:
966: wp->base.grid->flags &= ~GRID_HISTORY;
967:
968: wp->flags |= PANE_REDRAW;
969: }
970:
971: /* Exit alternate screen mode and restore the copied grid. */
972: void
1.87 nicm 973: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
974: int cursor)
1.44 nicm 975: {
976: struct screen *s = &wp->base;
977: u_int sx, sy;
978:
979: if (wp->saved_grid == NULL)
980: return;
981: if (!options_get_number(&wp->window->options, "alternate-screen"))
982: return;
983: sx = screen_size_x(s);
984: sy = screen_size_y(s);
985:
986: /*
987: * If the current size is bigger, temporarily resize to the old size
988: * before copying back.
989: */
990: if (sy > wp->saved_grid->sy)
1.89 nicm 991: screen_resize(s, sx, wp->saved_grid->sy, 1);
1.44 nicm 992:
993: /* Restore the grid, cursor position and cell. */
994: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
1.87 nicm 995: if (cursor)
996: s->cx = wp->saved_cx;
1.44 nicm 997: if (s->cx > screen_size_x(s) - 1)
998: s->cx = screen_size_x(s) - 1;
1.87 nicm 999: if (cursor)
1000: s->cy = wp->saved_cy;
1.44 nicm 1001: if (s->cy > screen_size_y(s) - 1)
1002: s->cy = screen_size_y(s) - 1;
1003: memcpy(gc, &wp->saved_cell, sizeof *gc);
1004:
1005: /*
1006: * Turn history back on (so resize can use it) and then resize back to
1007: * the current size.
1008: */
1009: wp->base.grid->flags |= GRID_HISTORY;
1.89 nicm 1010: if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
1011: screen_resize(s, sx, sy, 1);
1.44 nicm 1012:
1013: grid_destroy(wp->saved_grid);
1014: wp->saved_grid = NULL;
1015:
1016: wp->flags |= PANE_REDRAW;
1.1 nicm 1017: }
1018:
1019: int
1020: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
1021: {
1022: struct screen *s;
1023:
1.15 nicm 1024: if (wp->mode != NULL)
1.1 nicm 1025: return (1);
1026: wp->mode = mode;
1027:
1028: if ((s = wp->mode->init(wp)) != NULL)
1029: wp->screen = s;
1.34 nicm 1030: wp->flags |= PANE_REDRAW;
1.1 nicm 1031: return (0);
1032: }
1033:
1034: void
1035: window_pane_reset_mode(struct window_pane *wp)
1036: {
1037: if (wp->mode == NULL)
1038: return;
1039:
1040: wp->mode->free(wp);
1041: wp->mode = NULL;
1042:
1043: wp->screen = &wp->base;
1.34 nicm 1044: wp->flags |= PANE_REDRAW;
1.1 nicm 1045: }
1046:
1047: void
1.118 nicm 1048: window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
1049: int key, struct mouse_event *m)
1.1 nicm 1050: {
1.27 nicm 1051: struct window_pane *wp2;
1.3 nicm 1052:
1.118 nicm 1053: if (KEYC_IS_MOUSE(key) && m == NULL)
1054: return;
1055:
1.1 nicm 1056: if (wp->mode != NULL) {
1057: if (wp->mode->key != NULL)
1.118 nicm 1058: wp->mode->key(wp, c, s, key, m);
1.27 nicm 1059: return;
1.30 nicm 1060: }
1.27 nicm 1061:
1.113 nicm 1062: if (wp->fd == -1 || wp->flags & PANE_INPUTOFF)
1.30 nicm 1063: return;
1.113 nicm 1064:
1.118 nicm 1065: input_key(wp, key, m);
1066:
1067: if (KEYC_IS_MOUSE(key))
1068: return;
1.27 nicm 1069: if (options_get_number(&wp->window->options, "synchronize-panes")) {
1070: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1071: if (wp2 == wp || wp2->mode != NULL)
1072: continue;
1073: if (wp2->fd != -1 && window_pane_visible(wp2))
1.118 nicm 1074: input_key(wp2, key, NULL);
1.27 nicm 1075: }
1076: }
1.10 nicm 1077: }
1078:
1079: int
1080: window_pane_visible(struct window_pane *wp)
1081: {
1082: struct window *w = wp->window;
1083:
1.93 nicm 1084: if (wp->layout_cell == NULL)
1085: return (0);
1.10 nicm 1086: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
1087: return (0);
1088: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
1089: return (0);
1090: return (1);
1.1 nicm 1091: }
1092:
1093: char *
1.108 nicm 1094: window_pane_search(struct window_pane *wp, const char *searchstr,
1095: u_int *lineno)
1.1 nicm 1096: {
1.4 nicm 1097: struct screen *s = &wp->base;
1.5 nicm 1098: char *newsearchstr, *line, *msg;
1.4 nicm 1099: u_int i;
1100:
1.5 nicm 1101: msg = NULL;
1102: xasprintf(&newsearchstr, "*%s*", searchstr);
1103:
1.4 nicm 1104: for (i = 0; i < screen_size_y(s); i++) {
1105: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 1106: if (fnmatch(newsearchstr, line, 0) == 0) {
1107: msg = line;
1108: if (lineno != NULL)
1109: *lineno = i;
1110: break;
1111: }
1.82 nicm 1112: free(line);
1.4 nicm 1113: }
1.5 nicm 1114:
1.82 nicm 1115: free(newsearchstr);
1.5 nicm 1116: return (msg);
1.45 nicm 1117: }
1118:
1.109 nicm 1119: /* Get MRU pane from a list. */
1120: struct window_pane *
1121: window_pane_choose_best(struct window_pane_list *list)
1122: {
1123: struct window_pane *next, *best;
1124: u_int i;
1125:
1126: if (ARRAY_LENGTH(list) == 0)
1127: return (NULL);
1128:
1129: best = ARRAY_FIRST(list);
1130: for (i = 1; i < ARRAY_LENGTH(list); i++) {
1131: next = ARRAY_ITEM(list, i);
1132: if (next->active_point > best->active_point)
1133: best = next;
1134: }
1135: return (best);
1136: }
1137:
1138: /*
1139: * Find the pane directly above another. We build a list of those adjacent to
1140: * top edge and then choose the best.
1141: */
1.45 nicm 1142: struct window_pane *
1143: window_pane_find_up(struct window_pane *wp)
1144: {
1.109 nicm 1145: struct window_pane *next, *best;
1146: u_int edge, left, right, end;
1147: struct window_pane_list list;
1148: int found;
1.45 nicm 1149:
1150: if (wp == NULL || !window_pane_visible(wp))
1151: return (NULL);
1.109 nicm 1152: ARRAY_INIT(&list);
1153:
1154: edge = wp->yoff;
1155: if (edge == 0)
1156: edge = wp->window->sy + 1;
1.45 nicm 1157:
1158: left = wp->xoff;
1.109 nicm 1159: right = wp->xoff + wp->sx;
1.45 nicm 1160:
1.109 nicm 1161: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1162: if (next == wp || !window_pane_visible(next))
1.45 nicm 1163: continue;
1.109 nicm 1164: if (next->yoff + next->sy + 1 != edge)
1.45 nicm 1165: continue;
1.109 nicm 1166: end = next->xoff + next->sx - 1;
1167:
1168: found = 0;
1169: if (next->xoff < left && end > right)
1170: found = 1;
1171: else if (next->xoff >= left && next->xoff <= right)
1172: found = 1;
1173: else if (end >= left && end <= right)
1174: found = 1;
1175: if (found)
1176: ARRAY_ADD(&list, next);
1177: }
1178:
1179: best = window_pane_choose_best(&list);
1180: ARRAY_FREE(&list);
1181: return (best);
1.45 nicm 1182: }
1183:
1184: /* Find the pane directly below another. */
1185: struct window_pane *
1186: window_pane_find_down(struct window_pane *wp)
1187: {
1.109 nicm 1188: struct window_pane *next, *best;
1189: u_int edge, left, right, end;
1190: struct window_pane_list list;
1191: int found;
1.45 nicm 1192:
1193: if (wp == NULL || !window_pane_visible(wp))
1194: return (NULL);
1.109 nicm 1195: ARRAY_INIT(&list);
1196:
1197: edge = wp->yoff + wp->sy + 1;
1198: if (edge >= wp->window->sy)
1199: edge = 0;
1.45 nicm 1200:
1201: left = wp->xoff;
1.109 nicm 1202: right = wp->xoff + wp->sx;
1.45 nicm 1203:
1.109 nicm 1204: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1205: if (next == wp || !window_pane_visible(next))
1.45 nicm 1206: continue;
1.109 nicm 1207: if (next->yoff != edge)
1.45 nicm 1208: continue;
1.109 nicm 1209: end = next->xoff + next->sx - 1;
1210:
1211: found = 0;
1212: if (next->xoff < left && end > right)
1213: found = 1;
1214: else if (next->xoff >= left && next->xoff <= right)
1215: found = 1;
1216: else if (end >= left && end <= right)
1217: found = 1;
1218: if (found)
1219: ARRAY_ADD(&list, next);
1.45 nicm 1220: }
1.109 nicm 1221:
1222: best = window_pane_choose_best(&list);
1223: ARRAY_FREE(&list);
1224: return (best);
1.45 nicm 1225: }
1226:
1.109 nicm 1227: /* Find the pane directly to the left of another. */
1.45 nicm 1228: struct window_pane *
1229: window_pane_find_left(struct window_pane *wp)
1230: {
1.109 nicm 1231: struct window_pane *next, *best;
1232: u_int edge, top, bottom, end;
1233: struct window_pane_list list;
1234: int found;
1.45 nicm 1235:
1236: if (wp == NULL || !window_pane_visible(wp))
1237: return (NULL);
1.109 nicm 1238: ARRAY_INIT(&list);
1239:
1240: edge = wp->xoff;
1241: if (edge == 0)
1242: edge = wp->window->sx + 1;
1.45 nicm 1243:
1244: top = wp->yoff;
1.109 nicm 1245: bottom = wp->yoff + wp->sy;
1.45 nicm 1246:
1.109 nicm 1247: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1248: if (next == wp || !window_pane_visible(next))
1.45 nicm 1249: continue;
1.109 nicm 1250: if (next->xoff + next->sx + 1 != edge)
1.45 nicm 1251: continue;
1.109 nicm 1252: end = next->yoff + next->sy - 1;
1253:
1254: found = 0;
1255: if (next->yoff < top && end > bottom)
1256: found = 1;
1257: else if (next->yoff >= top && next->yoff <= bottom)
1258: found = 1;
1259: else if (end >= top && end <= bottom)
1260: found = 1;
1261: if (found)
1262: ARRAY_ADD(&list, next);
1.45 nicm 1263: }
1.109 nicm 1264:
1265: best = window_pane_choose_best(&list);
1266: ARRAY_FREE(&list);
1267: return (best);
1.45 nicm 1268: }
1269:
1.109 nicm 1270: /* Find the pane directly to the right of another. */
1.45 nicm 1271: struct window_pane *
1272: window_pane_find_right(struct window_pane *wp)
1273: {
1.109 nicm 1274: struct window_pane *next, *best;
1275: u_int edge, top, bottom, end;
1276: struct window_pane_list list;
1277: int found;
1.45 nicm 1278:
1279: if (wp == NULL || !window_pane_visible(wp))
1280: return (NULL);
1.109 nicm 1281: ARRAY_INIT(&list);
1282:
1283: edge = wp->xoff + wp->sx + 1;
1284: if (edge >= wp->window->sx)
1285: edge = 0;
1.45 nicm 1286:
1287: top = wp->yoff;
1.109 nicm 1288: bottom = wp->yoff + wp->sy;
1.45 nicm 1289:
1.109 nicm 1290: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1291: if (next == wp || !window_pane_visible(next))
1.45 nicm 1292: continue;
1.109 nicm 1293: if (next->xoff != edge)
1.45 nicm 1294: continue;
1.109 nicm 1295: end = next->yoff + next->sy - 1;
1296:
1297: found = 0;
1298: if (next->yoff < top && end > bottom)
1299: found = 1;
1300: else if (next->yoff >= top && next->yoff <= bottom)
1301: found = 1;
1302: else if (end >= top && end <= bottom)
1303: found = 1;
1304: if (found)
1305: ARRAY_ADD(&list, next);
1306: }
1307:
1308: best = window_pane_choose_best(&list);
1309: ARRAY_FREE(&list);
1310: return (best);
1.81 nicm 1311: }
1312:
1313: /* Clear alert flags for a winlink */
1314: void
1315: winlink_clear_flags(struct winlink *wl)
1316: {
1317: struct session *s;
1.122 ! nicm 1318: struct winlink *wl_loop;
1.81 nicm 1319:
1.122 ! nicm 1320: RB_FOREACH(s, sessions, &sessions) {
! 1321: RB_FOREACH(wl_loop, winlinks, &s->windows) {
! 1322: if (wl_loop->window != wl->window)
1.81 nicm 1323: continue;
1.122 ! nicm 1324: if ((wl_loop->flags & WINLINK_ALERTFLAGS) == 0)
1.81 nicm 1325: continue;
1326:
1.122 ! nicm 1327: wl_loop->flags &= ~WINLINK_ALERTFLAGS;
! 1328: wl_loop->window->flags &= ~WINDOW_ALERTFLAGS;
1.81 nicm 1329: server_status_session(s);
1330: }
1331: }
1.1 nicm 1332: }
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