Annotation of src/usr.bin/tmux/session.c, Revision 1.56
1.56 ! nicm 1: /* $OpenBSD: session.c,v 1.55 2015/09/01 18:50:16 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: #include <sys/time.h>
21:
1.6 nicm 22: #include <paths.h>
1.1 nicm 23: #include <string.h>
24: #include <stdlib.h>
25: #include <unistd.h>
1.10 nicm 26: #include <time.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
30: struct sessions sessions;
1.38 nicm 31: u_int next_session_id;
1.11 nicm 32: struct session_groups session_groups;
1.1 nicm 33:
1.50 nicm 34: void session_free(int, short, void *);
35:
1.52 nicm 36: void session_lock_timer(int, short, void *);
37:
1.18 nicm 38: struct winlink *session_next_alert(struct winlink *);
39: struct winlink *session_previous_alert(struct winlink *);
1.21 nicm 40:
1.25 nicm 41: RB_GENERATE(sessions, session, entry, session_cmp);
42:
43: int
44: session_cmp(struct session *s1, struct session *s2)
45: {
46: return (strcmp(s1->name, s2->name));
47: }
48:
1.21 nicm 49: /*
50: * Find if session is still alive. This is true if it is still on the global
51: * sessions list.
52: */
53: int
54: session_alive(struct session *s)
55: {
1.25 nicm 56: struct session *s_loop;
1.21 nicm 57:
1.25 nicm 58: RB_FOREACH(s_loop, sessions, &sessions) {
59: if (s_loop == s)
60: return (1);
61: }
62: return (0);
1.21 nicm 63: }
1.1 nicm 64:
65: /* Find session by name. */
66: struct session *
67: session_find(const char *name)
68: {
1.25 nicm 69: struct session s;
70:
71: s.name = (char *) name;
72: return (RB_FIND(sessions, &sessions, &s));
1.48 nicm 73: }
74:
75: /* Find session by id parsed from a string. */
76: struct session *
77: session_find_by_id_str(const char *s)
78: {
79: const char *errstr;
80: u_int id;
81:
82: if (*s != '$')
83: return (NULL);
84:
85: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
86: if (errstr != NULL)
87: return (NULL);
88: return (session_find_by_id(id));
1.25 nicm 89: }
90:
1.38 nicm 91: /* Find session by id. */
1.25 nicm 92: struct session *
1.38 nicm 93: session_find_by_id(u_int id)
1.25 nicm 94: {
1.1 nicm 95: struct session *s;
96:
1.25 nicm 97: RB_FOREACH(s, sessions, &sessions) {
1.38 nicm 98: if (s->id == id)
1.1 nicm 99: return (s);
100: }
101: return (NULL);
102: }
103:
104: /* Create a new session. */
105: struct session *
1.44 nicm 106: session_create(const char *name, int argc, char **argv, const char *path,
107: int cwd, struct environ *env, struct termios *tio, int idx, u_int sx,
108: u_int sy, char **cause)
1.1 nicm 109: {
110: struct session *s;
1.44 nicm 111: struct winlink *wl;
1.1 nicm 112:
1.52 nicm 113: s = xcalloc(1, sizeof *s);
1.50 nicm 114: s->references = 1;
1.1 nicm 115: s->flags = 0;
1.7 nicm 116:
1.41 nicm 117: s->cwd = dup(cwd);
1.19 nicm 118:
1.1 nicm 119: s->curw = NULL;
1.11 nicm 120: TAILQ_INIT(&s->lastw);
1.1 nicm 121: RB_INIT(&s->windows);
1.7 nicm 122:
1.3 nicm 123: environ_init(&s->environ);
124: if (env != NULL)
125: environ_copy(env, &s->environ);
1.56 ! nicm 126: s->options = options_create(global_s_options);
1.8 nicm 127:
128: s->tio = NULL;
129: if (tio != NULL) {
130: s->tio = xmalloc(sizeof *s->tio);
131: memcpy(s->tio, tio, sizeof *s->tio);
132: }
1.1 nicm 133:
1.51 nicm 134: if (gettimeofday(&s->creation_time, NULL) != 0)
135: fatal("gettimeofday failed");
136: session_update_activity(s, &s->creation_time);
137:
1.1 nicm 138: s->sx = sx;
139: s->sy = sy;
140:
1.32 nicm 141: if (name != NULL) {
1.1 nicm 142: s->name = xstrdup(name);
1.38 nicm 143: s->id = next_session_id++;
1.32 nicm 144: } else {
145: s->name = NULL;
146: do {
1.38 nicm 147: s->id = next_session_id++;
1.46 nicm 148: free(s->name);
1.38 nicm 149: xasprintf(&s->name, "%u", s->id);
1.32 nicm 150: } while (RB_FIND(sessions, &sessions, s) != NULL);
151: }
1.25 nicm 152: RB_INSERT(sessions, &sessions, s);
1.15 nicm 153:
1.52 nicm 154: if (gettimeofday(&s->creation_time, NULL) != 0)
155: fatal("gettimeofday failed");
156: session_update_activity(s, &s->creation_time);
157:
1.44 nicm 158: if (argc >= 0) {
159: wl = session_new(s, NULL, argc, argv, path, cwd, idx, cause);
160: if (wl == NULL) {
1.11 nicm 161: session_destroy(s);
162: return (NULL);
163: }
164: session_select(s, RB_ROOT(&s->windows)->idx);
1.1 nicm 165: }
166:
167: log_debug("session %s created", s->name);
1.33 nicm 168: notify_session_created(s);
1.1 nicm 169:
170: return (s);
171: }
172:
1.50 nicm 173: /* Remove a reference from a session. */
174: void
175: session_unref(struct session *s)
176: {
177: log_debug("session %s has %d references", s->name, s->references);
178:
179: s->references--;
180: if (s->references == 0)
181: event_once(-1, EV_TIMEOUT, session_free, s, NULL);
182: }
183:
184: /* Free session. */
185: void
186: session_free(unused int fd, unused short events, void *arg)
187: {
188: struct session *s = arg;
189:
1.55 nicm 190: log_debug("session %s freed (%d references)", s->name, s->references);
1.50 nicm 191:
1.53 nicm 192: if (s->references == 0) {
1.56 ! nicm 193: environ_free(&s->environ);
! 194: options_free(s->options);
! 195:
1.53 nicm 196: free(s->name);
1.50 nicm 197: free(s);
1.53 nicm 198: }
1.50 nicm 199: }
200:
1.1 nicm 201: /* Destroy a session. */
202: void
203: session_destroy(struct session *s)
204: {
1.33 nicm 205: struct winlink *wl;
1.39 nicm 206:
1.1 nicm 207: log_debug("session %s destroyed", s->name);
208:
1.25 nicm 209: RB_REMOVE(sessions, &sessions, s);
1.33 nicm 210: notify_session_closed(s);
1.1 nicm 211:
1.36 nicm 212: free(s->tio);
1.8 nicm 213:
1.52 nicm 214: if (event_initialized(&s->lock_timer))
215: event_del(&s->lock_timer);
216:
1.11 nicm 217: session_group_remove(s);
1.1 nicm 218:
1.11 nicm 219: while (!TAILQ_EMPTY(&s->lastw))
220: winlink_stack_remove(&s->lastw, TAILQ_FIRST(&s->lastw));
1.33 nicm 221: while (!RB_EMPTY(&s->windows)) {
222: wl = RB_ROOT(&s->windows);
223: notify_window_unlinked(s, wl->window);
224: winlink_remove(&s->windows, wl);
225: }
1.1 nicm 226:
1.41 nicm 227: close(s->cwd);
1.15 nicm 228:
1.50 nicm 229: session_unref(s);
1.31 nicm 230: }
231:
1.42 nicm 232: /* Check a session name is valid: not empty and no colons or periods. */
1.31 nicm 233: int
234: session_check_name(const char *name)
235: {
1.42 nicm 236: return (*name != '\0' && name[strcspn(name, ":.")] == '\0');
1.27 nicm 237: }
238:
1.52 nicm 239: /* Lock session if it has timed out. */
240: void
241: session_lock_timer(unused int fd, unused short events, void *arg)
242: {
243: struct session *s = arg;
244:
245: if (s->flags & SESSION_UNATTACHED)
246: return;
247:
248: log_debug("session %s locked, activity time %lld", s->name,
249: (long long)s->activity_time.tv_sec);
250:
251: server_lock_session(s);
252: recalculate_sizes();
253: }
254:
1.51 nicm 255: /* Update activity time. */
1.27 nicm 256: void
1.51 nicm 257: session_update_activity(struct session *s, struct timeval *from)
1.27 nicm 258: {
1.51 nicm 259: struct timeval *last = &s->last_activity_time;
1.52 nicm 260: struct timeval tv;
1.51 nicm 261:
262: memcpy(last, &s->activity_time, sizeof *last);
263: if (from == NULL)
264: gettimeofday(&s->activity_time, NULL);
265: else
266: memcpy(&s->activity_time, from, sizeof s->activity_time);
1.52 nicm 267:
268: if (evtimer_initialized(&s->lock_timer))
269: evtimer_del(&s->lock_timer);
270: else
271: evtimer_set(&s->lock_timer, session_lock_timer, s);
272:
273: if (~s->flags & SESSION_UNATTACHED) {
274: timerclear(&tv);
1.56 ! nicm 275: tv.tv_sec = options_get_number(s->options, "lock-after-time");
1.52 nicm 276: if (tv.tv_sec != 0)
277: evtimer_add(&s->lock_timer, &tv);
278: }
1.20 nicm 279: }
280:
281: /* Find the next usable session. */
282: struct session *
283: session_next_session(struct session *s)
284: {
285: struct session *s2;
286:
1.25 nicm 287: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 288: return (NULL);
289:
1.29 nicm 290: s2 = RB_NEXT(sessions, &sessions, s);
1.28 nicm 291: if (s2 == NULL)
292: s2 = RB_MIN(sessions, &sessions);
1.25 nicm 293: if (s2 == s)
294: return (NULL);
1.20 nicm 295: return (s2);
296: }
297:
298: /* Find the previous usable session. */
299: struct session *
300: session_previous_session(struct session *s)
301: {
302: struct session *s2;
303:
1.25 nicm 304: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 305: return (NULL);
306:
1.29 nicm 307: s2 = RB_PREV(sessions, &sessions, s);
1.28 nicm 308: if (s2 == NULL)
309: s2 = RB_MAX(sessions, &sessions);
1.25 nicm 310: if (s2 == s)
311: return (NULL);
1.20 nicm 312: return (s2);
1.1 nicm 313: }
314:
315: /* Create a new window on a session. */
316: struct winlink *
1.44 nicm 317: session_new(struct session *s, const char *name, int argc, char **argv,
1.43 nicm 318: const char *path, int cwd, int idx, char **cause)
1.1 nicm 319: {
320: struct window *w;
1.30 nicm 321: struct winlink *wl;
1.3 nicm 322: struct environ env;
1.6 nicm 323: const char *shell;
1.1 nicm 324: u_int hlimit;
325:
1.30 nicm 326: if ((wl = winlink_add(&s->windows, idx)) == NULL) {
327: xasprintf(cause, "index in use: %d", idx);
328: return (NULL);
329: }
330:
1.3 nicm 331: environ_init(&env);
332: environ_copy(&global_environ, &env);
333: environ_copy(&s->environ, &env);
334: server_fill_environ(s, &env);
1.1 nicm 335:
1.56 ! nicm 336: shell = options_get_string(s->options, "default-shell");
1.6 nicm 337: if (*shell == '\0' || areshell(shell))
338: shell = _PATH_BSHELL;
339:
1.56 ! nicm 340: hlimit = options_get_number(s->options, "history-limit");
1.44 nicm 341: w = window_create(name, argc, argv, path, shell, cwd, &env, s->tio,
342: s->sx, s->sy, hlimit, cause);
1.3 nicm 343: if (w == NULL) {
1.30 nicm 344: winlink_remove(&s->windows, wl);
1.3 nicm 345: environ_free(&env);
1.1 nicm 346: return (NULL);
1.3 nicm 347: }
1.30 nicm 348: winlink_set_window(wl, w);
1.33 nicm 349: notify_window_linked(s, w);
1.3 nicm 350: environ_free(&env);
1.1 nicm 351:
1.56 ! nicm 352: if (options_get_number(s->options, "set-remain-on-exit"))
! 353: options_set_number(w->options, "remain-on-exit", 1);
1.1 nicm 354:
1.30 nicm 355: session_group_synchronize_from(s);
356: return (wl);
1.1 nicm 357: }
358:
359: /* Attach a window to a session. */
360: struct winlink *
361: session_attach(struct session *s, struct window *w, int idx, char **cause)
362: {
363: struct winlink *wl;
364:
1.30 nicm 365: if ((wl = winlink_add(&s->windows, idx)) == NULL) {
1.1 nicm 366: xasprintf(cause, "index in use: %d", idx);
1.30 nicm 367: return (NULL);
368: }
369: winlink_set_window(wl, w);
1.33 nicm 370: notify_window_linked(s, w);
1.30 nicm 371:
1.11 nicm 372: session_group_synchronize_from(s);
1.1 nicm 373: return (wl);
374: }
375:
376: /* Detach a window from a session. */
377: int
378: session_detach(struct session *s, struct winlink *wl)
379: {
380: if (s->curw == wl &&
381: session_last(s) != 0 && session_previous(s, 0) != 0)
382: session_next(s, 0);
383:
1.18 nicm 384: wl->flags &= ~WINLINK_ALERTFLAGS;
1.33 nicm 385: notify_window_unlinked(s, wl->window);
1.1 nicm 386: winlink_stack_remove(&s->lastw, wl);
387: winlink_remove(&s->windows, wl);
1.11 nicm 388: session_group_synchronize_from(s);
1.1 nicm 389: if (RB_EMPTY(&s->windows)) {
390: session_destroy(s);
391: return (1);
392: }
393: return (0);
394: }
395:
396: /* Return if session has window. */
1.47 nicm 397: int
1.1 nicm 398: session_has(struct session *s, struct window *w)
399: {
400: struct winlink *wl;
401:
402: RB_FOREACH(wl, winlinks, &s->windows) {
403: if (wl->window == w)
1.47 nicm 404: return (1);
1.1 nicm 405: }
1.47 nicm 406: return (0);
1.49 nicm 407: }
408:
409: /*
410: * Return 1 if a window is linked outside this session (not including session
411: * groups). The window must be in this session!
412: */
413: int
414: session_is_linked(struct session *s, struct window *w)
415: {
416: struct session_group *sg;
417:
418: if ((sg = session_group_find(s)) != NULL)
419: return (w->references != session_group_count(sg));
420: return (w->references != 1);
1.1 nicm 421: }
422:
423: struct winlink *
1.18 nicm 424: session_next_alert(struct winlink *wl)
1.1 nicm 425: {
426: while (wl != NULL) {
1.18 nicm 427: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 428: break;
1.14 nicm 429: wl = winlink_next(wl);
1.1 nicm 430: }
431: return (wl);
432: }
433:
434: /* Move session to next window. */
435: int
1.17 nicm 436: session_next(struct session *s, int alert)
1.1 nicm 437: {
438: struct winlink *wl;
439:
440: if (s->curw == NULL)
441: return (-1);
442:
1.14 nicm 443: wl = winlink_next(s->curw);
1.17 nicm 444: if (alert)
1.18 nicm 445: wl = session_next_alert(wl);
1.1 nicm 446: if (wl == NULL) {
447: wl = RB_MIN(winlinks, &s->windows);
1.18 nicm 448: if (alert && ((wl = session_next_alert(wl)) == NULL))
1.1 nicm 449: return (-1);
450: }
1.37 nicm 451: return (session_set_current(s, wl));
1.1 nicm 452: }
453:
454: struct winlink *
1.18 nicm 455: session_previous_alert(struct winlink *wl)
1.1 nicm 456: {
457: while (wl != NULL) {
1.18 nicm 458: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 459: break;
1.14 nicm 460: wl = winlink_previous(wl);
1.1 nicm 461: }
462: return (wl);
463: }
464:
465: /* Move session to previous window. */
466: int
1.17 nicm 467: session_previous(struct session *s, int alert)
1.1 nicm 468: {
469: struct winlink *wl;
470:
471: if (s->curw == NULL)
472: return (-1);
473:
1.14 nicm 474: wl = winlink_previous(s->curw);
1.17 nicm 475: if (alert)
1.18 nicm 476: wl = session_previous_alert(wl);
1.1 nicm 477: if (wl == NULL) {
478: wl = RB_MAX(winlinks, &s->windows);
1.18 nicm 479: if (alert && (wl = session_previous_alert(wl)) == NULL)
1.1 nicm 480: return (-1);
481: }
1.37 nicm 482: return (session_set_current(s, wl));
1.1 nicm 483: }
484:
485: /* Move session to specific window. */
486: int
487: session_select(struct session *s, int idx)
488: {
489: struct winlink *wl;
490:
491: wl = winlink_find_by_index(&s->windows, idx);
1.37 nicm 492: return (session_set_current(s, wl));
1.1 nicm 493: }
494:
495: /* Move session to last used window. */
496: int
497: session_last(struct session *s)
498: {
499: struct winlink *wl;
500:
1.11 nicm 501: wl = TAILQ_FIRST(&s->lastw);
1.37 nicm 502: if (wl == NULL)
503: return (-1);
504: if (wl == s->curw)
505: return (1);
506:
507: return (session_set_current(s, wl));
508: }
509:
510: /* Set current winlink to wl .*/
511: int
512: session_set_current(struct session *s, struct winlink *wl)
513: {
1.1 nicm 514: if (wl == NULL)
515: return (-1);
516: if (wl == s->curw)
517: return (1);
518:
519: winlink_stack_remove(&s->lastw, wl);
520: winlink_stack_push(&s->lastw, s->curw);
521: s->curw = wl;
1.35 nicm 522: winlink_clear_flags(wl);
1.54 nicm 523: window_update_activity(wl->window);
1.1 nicm 524: return (0);
1.11 nicm 525: }
526:
527: /* Find the session group containing a session. */
528: struct session_group *
529: session_group_find(struct session *target)
530: {
531: struct session_group *sg;
532: struct session *s;
533:
534: TAILQ_FOREACH(sg, &session_groups, entry) {
535: TAILQ_FOREACH(s, &sg->sessions, gentry) {
536: if (s == target)
537: return (sg);
538: }
539: }
540: return (NULL);
541: }
542:
543: /* Find session group index. */
544: u_int
545: session_group_index(struct session_group *sg)
546: {
547: struct session_group *sg2;
548: u_int i;
549:
550: i = 0;
551: TAILQ_FOREACH(sg2, &session_groups, entry) {
552: if (sg == sg2)
553: return (i);
554: i++;
555: }
556:
557: fatalx("session group not found");
558: }
559:
560: /*
561: * Add a session to the session group containing target, creating it if
1.15 nicm 562: * necessary.
1.11 nicm 563: */
564: void
565: session_group_add(struct session *target, struct session *s)
566: {
567: struct session_group *sg;
568:
569: if ((sg = session_group_find(target)) == NULL) {
570: sg = xmalloc(sizeof *sg);
571: TAILQ_INSERT_TAIL(&session_groups, sg, entry);
572: TAILQ_INIT(&sg->sessions);
573: TAILQ_INSERT_TAIL(&sg->sessions, target, gentry);
574: }
575: TAILQ_INSERT_TAIL(&sg->sessions, s, gentry);
576: }
577:
578: /* Remove a session from its group and destroy the group if empty. */
579: void
580: session_group_remove(struct session *s)
581: {
582: struct session_group *sg;
583:
584: if ((sg = session_group_find(s)) == NULL)
585: return;
586: TAILQ_REMOVE(&sg->sessions, s, gentry);
587: if (TAILQ_NEXT(TAILQ_FIRST(&sg->sessions), gentry) == NULL)
588: TAILQ_REMOVE(&sg->sessions, TAILQ_FIRST(&sg->sessions), gentry);
589: if (TAILQ_EMPTY(&sg->sessions)) {
590: TAILQ_REMOVE(&session_groups, sg, entry);
1.36 nicm 591: free(sg);
1.11 nicm 592: }
593: }
594:
1.45 nicm 595: /* Count number of sessions in session group. */
596: u_int
597: session_group_count(struct session_group *sg)
598: {
599: struct session *s;
600: u_int n;
601:
602: n = 0;
603: TAILQ_FOREACH(s, &sg->sessions, gentry)
604: n++;
605: return (n);
606: }
607:
1.11 nicm 608: /* Synchronize a session to its session group. */
609: void
610: session_group_synchronize_to(struct session *s)
611: {
612: struct session_group *sg;
613: struct session *target;
614:
615: if ((sg = session_group_find(s)) == NULL)
616: return;
617:
618: target = NULL;
619: TAILQ_FOREACH(target, &sg->sessions, gentry) {
620: if (target != s)
621: break;
622: }
623: session_group_synchronize1(target, s);
624: }
625:
626: /* Synchronize a session group to a session. */
627: void
628: session_group_synchronize_from(struct session *target)
629: {
630: struct session_group *sg;
631: struct session *s;
632:
633: if ((sg = session_group_find(target)) == NULL)
634: return;
635:
636: TAILQ_FOREACH(s, &sg->sessions, gentry) {
637: if (s != target)
638: session_group_synchronize1(target, s);
639: }
640: }
641:
642: /*
643: * Synchronize a session with a target session. This means destroying all
644: * winlinks then recreating them, then updating the current window, last window
645: * stack and alerts.
646: */
647: void
648: session_group_synchronize1(struct session *target, struct session *s)
649: {
650: struct winlinks old_windows, *ww;
651: struct winlink_stack old_lastw;
652: struct winlink *wl, *wl2;
653:
654: /* Don't do anything if the session is empty (it'll be destroyed). */
655: ww = &target->windows;
656: if (RB_EMPTY(ww))
657: return;
658:
659: /* If the current window has vanished, move to the next now. */
1.16 nicm 660: if (s->curw != NULL &&
661: winlink_find_by_index(ww, s->curw->idx) == NULL &&
662: session_last(s) != 0 && session_previous(s, 0) != 0)
663: session_next(s, 0);
1.11 nicm 664:
665: /* Save the old pointer and reset it. */
666: memcpy(&old_windows, &s->windows, sizeof old_windows);
667: RB_INIT(&s->windows);
668:
669: /* Link all the windows from the target. */
1.18 nicm 670: RB_FOREACH(wl, winlinks, ww) {
1.30 nicm 671: wl2 = winlink_add(&s->windows, wl->idx);
672: winlink_set_window(wl2, wl->window);
1.33 nicm 673: notify_window_linked(s, wl2->window);
1.18 nicm 674: wl2->flags |= wl->flags & WINLINK_ALERTFLAGS;
675: }
1.11 nicm 676:
677: /* Fix up the current window. */
678: if (s->curw != NULL)
679: s->curw = winlink_find_by_index(&s->windows, s->curw->idx);
680: else
681: s->curw = winlink_find_by_index(&s->windows, target->curw->idx);
682:
683: /* Fix up the last window stack. */
684: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
685: TAILQ_INIT(&s->lastw);
686: TAILQ_FOREACH(wl, &old_lastw, sentry) {
687: wl2 = winlink_find_by_index(&s->windows, wl->idx);
688: if (wl2 != NULL)
689: TAILQ_INSERT_TAIL(&s->lastw, wl2, sentry);
690: }
691:
692: /* Then free the old winlinks list. */
693: while (!RB_EMPTY(&old_windows)) {
694: wl = RB_ROOT(&old_windows);
1.45 nicm 695: wl2 = winlink_find_by_window_id(&s->windows, wl->window->id);
696: if (wl2 == NULL)
697: notify_window_unlinked(s, wl->window);
1.13 nicm 698: winlink_remove(&old_windows, wl);
1.11 nicm 699: }
1.34 nicm 700: }
701:
702: /* Renumber the windows across winlinks attached to a specific session. */
703: void
704: session_renumber_windows(struct session *s)
705: {
706: struct winlink *wl, *wl1, *wl_new;
707: struct winlinks old_wins;
708: struct winlink_stack old_lastw;
709: int new_idx, new_curw_idx;
710:
711: /* Save and replace old window list. */
712: memcpy(&old_wins, &s->windows, sizeof old_wins);
713: RB_INIT(&s->windows);
714:
715: /* Start renumbering from the base-index if it's set. */
1.56 ! nicm 716: new_idx = options_get_number(s->options, "base-index");
1.34 nicm 717: new_curw_idx = 0;
718:
719: /* Go through the winlinks and assign new indexes. */
720: RB_FOREACH(wl, winlinks, &old_wins) {
721: wl_new = winlink_add(&s->windows, new_idx);
722: winlink_set_window(wl_new, wl->window);
723: wl_new->flags |= wl->flags & WINLINK_ALERTFLAGS;
724:
725: if (wl == s->curw)
726: new_curw_idx = wl_new->idx;
727:
728: new_idx++;
729: }
730:
731: /* Fix the stack of last windows now. */
732: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
733: TAILQ_INIT(&s->lastw);
734: TAILQ_FOREACH(wl, &old_lastw, sentry) {
1.40 nicm 735: wl_new = winlink_find_by_window(&s->windows, wl->window);
1.34 nicm 736: if (wl_new != NULL)
737: TAILQ_INSERT_TAIL(&s->lastw, wl_new, sentry);
738: }
739:
740: /* Set the current window. */
741: s->curw = winlink_find_by_index(&s->windows, new_curw_idx);
742:
743: /* Free the old winlinks (reducing window references too). */
744: RB_FOREACH_SAFE(wl, winlinks, &old_wins, wl1)
745: winlink_remove(&old_wins, wl);
1.1 nicm 746: }
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