Annotation of src/usr.bin/tmux/session.c, Revision 1.51
1.51 ! nicm 1: /* $OpenBSD: session.c,v 1.50 2015/06/05 18:18:32 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:
1.18 nicm 36: struct winlink *session_next_alert(struct winlink *);
37: struct winlink *session_previous_alert(struct winlink *);
1.21 nicm 38:
1.25 nicm 39: RB_GENERATE(sessions, session, entry, session_cmp);
40:
41: int
42: session_cmp(struct session *s1, struct session *s2)
43: {
44: return (strcmp(s1->name, s2->name));
45: }
46:
1.21 nicm 47: /*
48: * Find if session is still alive. This is true if it is still on the global
49: * sessions list.
50: */
51: int
52: session_alive(struct session *s)
53: {
1.25 nicm 54: struct session *s_loop;
1.21 nicm 55:
1.25 nicm 56: RB_FOREACH(s_loop, sessions, &sessions) {
57: if (s_loop == s)
58: return (1);
59: }
60: return (0);
1.21 nicm 61: }
1.1 nicm 62:
63: /* Find session by name. */
64: struct session *
65: session_find(const char *name)
66: {
1.25 nicm 67: struct session s;
68:
69: s.name = (char *) name;
70: return (RB_FIND(sessions, &sessions, &s));
1.48 nicm 71: }
72:
73: /* Find session by id parsed from a string. */
74: struct session *
75: session_find_by_id_str(const char *s)
76: {
77: const char *errstr;
78: u_int id;
79:
80: if (*s != '$')
81: return (NULL);
82:
83: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
84: if (errstr != NULL)
85: return (NULL);
86: return (session_find_by_id(id));
1.25 nicm 87: }
88:
1.38 nicm 89: /* Find session by id. */
1.25 nicm 90: struct session *
1.38 nicm 91: session_find_by_id(u_int id)
1.25 nicm 92: {
1.1 nicm 93: struct session *s;
94:
1.25 nicm 95: RB_FOREACH(s, sessions, &sessions) {
1.38 nicm 96: if (s->id == id)
1.1 nicm 97: return (s);
98: }
99: return (NULL);
100: }
101:
102: /* Create a new session. */
103: struct session *
1.44 nicm 104: session_create(const char *name, int argc, char **argv, const char *path,
105: int cwd, struct environ *env, struct termios *tio, int idx, u_int sx,
106: u_int sy, char **cause)
1.1 nicm 107: {
108: struct session *s;
1.44 nicm 109: struct winlink *wl;
1.1 nicm 110:
111: s = xmalloc(sizeof *s);
1.50 nicm 112: s->references = 1;
1.1 nicm 113: s->flags = 0;
1.7 nicm 114:
1.41 nicm 115: s->cwd = dup(cwd);
1.19 nicm 116:
1.1 nicm 117: s->curw = NULL;
1.11 nicm 118: TAILQ_INIT(&s->lastw);
1.1 nicm 119: RB_INIT(&s->windows);
1.7 nicm 120:
1.2 nicm 121: options_init(&s->options, &global_s_options);
1.3 nicm 122: environ_init(&s->environ);
123: if (env != NULL)
124: environ_copy(env, &s->environ);
1.8 nicm 125:
126: s->tio = NULL;
127: if (tio != NULL) {
128: s->tio = xmalloc(sizeof *s->tio);
129: memcpy(s->tio, tio, sizeof *s->tio);
130: }
1.1 nicm 131:
1.51 ! nicm 132: if (gettimeofday(&s->creation_time, NULL) != 0)
! 133: fatal("gettimeofday failed");
! 134: session_update_activity(s, &s->creation_time);
! 135:
1.1 nicm 136: s->sx = sx;
137: s->sy = sy;
138:
1.32 nicm 139: if (name != NULL) {
1.1 nicm 140: s->name = xstrdup(name);
1.38 nicm 141: s->id = next_session_id++;
1.32 nicm 142: } else {
143: s->name = NULL;
144: do {
1.38 nicm 145: s->id = next_session_id++;
1.46 nicm 146: free(s->name);
1.38 nicm 147: xasprintf(&s->name, "%u", s->id);
1.32 nicm 148: } while (RB_FIND(sessions, &sessions, s) != NULL);
149: }
1.25 nicm 150: RB_INSERT(sessions, &sessions, s);
1.15 nicm 151:
1.44 nicm 152: if (argc >= 0) {
153: wl = session_new(s, NULL, argc, argv, path, cwd, idx, cause);
154: if (wl == NULL) {
1.11 nicm 155: session_destroy(s);
156: return (NULL);
157: }
158: session_select(s, RB_ROOT(&s->windows)->idx);
1.1 nicm 159: }
160:
161: log_debug("session %s created", s->name);
1.33 nicm 162: notify_session_created(s);
1.1 nicm 163:
164: return (s);
165: }
166:
1.50 nicm 167: /* Remove a reference from a session. */
168: void
169: session_unref(struct session *s)
170: {
171: log_debug("session %s has %d references", s->name, s->references);
172:
173: s->references--;
174: if (s->references == 0)
175: event_once(-1, EV_TIMEOUT, session_free, s, NULL);
176: }
177:
178: /* Free session. */
179: void
180: session_free(unused int fd, unused short events, void *arg)
181: {
182: struct session *s = arg;
183:
184: log_debug("sesson %s freed (%d references)", s->name, s->references);
185:
186: if (s->references == 0)
187: free(s);
188: }
189:
1.1 nicm 190: /* Destroy a session. */
191: void
192: session_destroy(struct session *s)
193: {
1.33 nicm 194: struct winlink *wl;
1.39 nicm 195:
1.1 nicm 196: log_debug("session %s destroyed", s->name);
197:
1.25 nicm 198: RB_REMOVE(sessions, &sessions, s);
1.33 nicm 199: notify_session_closed(s);
1.1 nicm 200:
1.36 nicm 201: free(s->tio);
1.8 nicm 202:
1.11 nicm 203: session_group_remove(s);
1.3 nicm 204: environ_free(&s->environ);
1.1 nicm 205: options_free(&s->options);
206:
1.11 nicm 207: while (!TAILQ_EMPTY(&s->lastw))
208: winlink_stack_remove(&s->lastw, TAILQ_FIRST(&s->lastw));
1.33 nicm 209: while (!RB_EMPTY(&s->windows)) {
210: wl = RB_ROOT(&s->windows);
211: notify_window_unlinked(s, wl->window);
212: winlink_remove(&s->windows, wl);
213: }
1.1 nicm 214:
1.41 nicm 215: close(s->cwd);
1.15 nicm 216:
1.50 nicm 217: session_unref(s);
1.31 nicm 218: }
219:
1.42 nicm 220: /* Check a session name is valid: not empty and no colons or periods. */
1.31 nicm 221: int
222: session_check_name(const char *name)
223: {
1.42 nicm 224: return (*name != '\0' && name[strcspn(name, ":.")] == '\0');
1.27 nicm 225: }
226:
1.51 ! nicm 227: /* Update activity time. */
1.27 nicm 228: void
1.51 ! nicm 229: session_update_activity(struct session *s, struct timeval *from)
1.27 nicm 230: {
1.51 ! nicm 231: struct timeval *last = &s->last_activity_time;
! 232:
! 233: memcpy(last, &s->activity_time, sizeof *last);
! 234: if (from == NULL)
! 235: gettimeofday(&s->activity_time, NULL);
! 236: else
! 237: memcpy(&s->activity_time, from, sizeof s->activity_time);
1.20 nicm 238: }
239:
240: /* Find the next usable session. */
241: struct session *
242: session_next_session(struct session *s)
243: {
244: struct session *s2;
245:
1.25 nicm 246: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 247: return (NULL);
248:
1.29 nicm 249: s2 = RB_NEXT(sessions, &sessions, s);
1.28 nicm 250: if (s2 == NULL)
251: s2 = RB_MIN(sessions, &sessions);
1.25 nicm 252: if (s2 == s)
253: return (NULL);
1.20 nicm 254: return (s2);
255: }
256:
257: /* Find the previous usable session. */
258: struct session *
259: session_previous_session(struct session *s)
260: {
261: struct session *s2;
262:
1.25 nicm 263: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 264: return (NULL);
265:
1.29 nicm 266: s2 = RB_PREV(sessions, &sessions, s);
1.28 nicm 267: if (s2 == NULL)
268: s2 = RB_MAX(sessions, &sessions);
1.25 nicm 269: if (s2 == s)
270: return (NULL);
1.20 nicm 271: return (s2);
1.1 nicm 272: }
273:
274: /* Create a new window on a session. */
275: struct winlink *
1.44 nicm 276: session_new(struct session *s, const char *name, int argc, char **argv,
1.43 nicm 277: const char *path, int cwd, int idx, char **cause)
1.1 nicm 278: {
279: struct window *w;
1.30 nicm 280: struct winlink *wl;
1.3 nicm 281: struct environ env;
1.6 nicm 282: const char *shell;
1.1 nicm 283: u_int hlimit;
284:
1.30 nicm 285: if ((wl = winlink_add(&s->windows, idx)) == NULL) {
286: xasprintf(cause, "index in use: %d", idx);
287: return (NULL);
288: }
289:
1.3 nicm 290: environ_init(&env);
291: environ_copy(&global_environ, &env);
292: environ_copy(&s->environ, &env);
293: server_fill_environ(s, &env);
1.1 nicm 294:
1.6 nicm 295: shell = options_get_string(&s->options, "default-shell");
296: if (*shell == '\0' || areshell(shell))
297: shell = _PATH_BSHELL;
298:
1.1 nicm 299: hlimit = options_get_number(&s->options, "history-limit");
1.44 nicm 300: w = window_create(name, argc, argv, path, shell, cwd, &env, s->tio,
301: s->sx, s->sy, hlimit, cause);
1.3 nicm 302: if (w == NULL) {
1.30 nicm 303: winlink_remove(&s->windows, wl);
1.3 nicm 304: environ_free(&env);
1.1 nicm 305: return (NULL);
1.3 nicm 306: }
1.30 nicm 307: winlink_set_window(wl, w);
1.33 nicm 308: notify_window_linked(s, w);
1.3 nicm 309: environ_free(&env);
1.1 nicm 310:
311: if (options_get_number(&s->options, "set-remain-on-exit"))
312: options_set_number(&w->options, "remain-on-exit", 1);
313:
1.30 nicm 314: session_group_synchronize_from(s);
315: return (wl);
1.1 nicm 316: }
317:
318: /* Attach a window to a session. */
319: struct winlink *
320: session_attach(struct session *s, struct window *w, int idx, char **cause)
321: {
322: struct winlink *wl;
323:
1.30 nicm 324: if ((wl = winlink_add(&s->windows, idx)) == NULL) {
1.1 nicm 325: xasprintf(cause, "index in use: %d", idx);
1.30 nicm 326: return (NULL);
327: }
328: winlink_set_window(wl, w);
1.33 nicm 329: notify_window_linked(s, w);
1.30 nicm 330:
1.11 nicm 331: session_group_synchronize_from(s);
1.1 nicm 332: return (wl);
333: }
334:
335: /* Detach a window from a session. */
336: int
337: session_detach(struct session *s, struct winlink *wl)
338: {
339: if (s->curw == wl &&
340: session_last(s) != 0 && session_previous(s, 0) != 0)
341: session_next(s, 0);
342:
1.18 nicm 343: wl->flags &= ~WINLINK_ALERTFLAGS;
1.33 nicm 344: notify_window_unlinked(s, wl->window);
1.1 nicm 345: winlink_stack_remove(&s->lastw, wl);
346: winlink_remove(&s->windows, wl);
1.11 nicm 347: session_group_synchronize_from(s);
1.1 nicm 348: if (RB_EMPTY(&s->windows)) {
349: session_destroy(s);
350: return (1);
351: }
352: return (0);
353: }
354:
355: /* Return if session has window. */
1.47 nicm 356: int
1.1 nicm 357: session_has(struct session *s, struct window *w)
358: {
359: struct winlink *wl;
360:
361: RB_FOREACH(wl, winlinks, &s->windows) {
362: if (wl->window == w)
1.47 nicm 363: return (1);
1.1 nicm 364: }
1.47 nicm 365: return (0);
1.49 nicm 366: }
367:
368: /*
369: * Return 1 if a window is linked outside this session (not including session
370: * groups). The window must be in this session!
371: */
372: int
373: session_is_linked(struct session *s, struct window *w)
374: {
375: struct session_group *sg;
376:
377: if ((sg = session_group_find(s)) != NULL)
378: return (w->references != session_group_count(sg));
379: return (w->references != 1);
1.1 nicm 380: }
381:
382: struct winlink *
1.18 nicm 383: session_next_alert(struct winlink *wl)
1.1 nicm 384: {
385: while (wl != NULL) {
1.18 nicm 386: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 387: break;
1.14 nicm 388: wl = winlink_next(wl);
1.1 nicm 389: }
390: return (wl);
391: }
392:
393: /* Move session to next window. */
394: int
1.17 nicm 395: session_next(struct session *s, int alert)
1.1 nicm 396: {
397: struct winlink *wl;
398:
399: if (s->curw == NULL)
400: return (-1);
401:
1.14 nicm 402: wl = winlink_next(s->curw);
1.17 nicm 403: if (alert)
1.18 nicm 404: wl = session_next_alert(wl);
1.1 nicm 405: if (wl == NULL) {
406: wl = RB_MIN(winlinks, &s->windows);
1.18 nicm 407: if (alert && ((wl = session_next_alert(wl)) == NULL))
1.1 nicm 408: return (-1);
409: }
1.37 nicm 410: return (session_set_current(s, wl));
1.1 nicm 411: }
412:
413: struct winlink *
1.18 nicm 414: session_previous_alert(struct winlink *wl)
1.1 nicm 415: {
416: while (wl != NULL) {
1.18 nicm 417: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 418: break;
1.14 nicm 419: wl = winlink_previous(wl);
1.1 nicm 420: }
421: return (wl);
422: }
423:
424: /* Move session to previous window. */
425: int
1.17 nicm 426: session_previous(struct session *s, int alert)
1.1 nicm 427: {
428: struct winlink *wl;
429:
430: if (s->curw == NULL)
431: return (-1);
432:
1.14 nicm 433: wl = winlink_previous(s->curw);
1.17 nicm 434: if (alert)
1.18 nicm 435: wl = session_previous_alert(wl);
1.1 nicm 436: if (wl == NULL) {
437: wl = RB_MAX(winlinks, &s->windows);
1.18 nicm 438: if (alert && (wl = session_previous_alert(wl)) == NULL)
1.1 nicm 439: return (-1);
440: }
1.37 nicm 441: return (session_set_current(s, wl));
1.1 nicm 442: }
443:
444: /* Move session to specific window. */
445: int
446: session_select(struct session *s, int idx)
447: {
448: struct winlink *wl;
449:
450: wl = winlink_find_by_index(&s->windows, idx);
1.37 nicm 451: return (session_set_current(s, wl));
1.1 nicm 452: }
453:
454: /* Move session to last used window. */
455: int
456: session_last(struct session *s)
457: {
458: struct winlink *wl;
459:
1.11 nicm 460: wl = TAILQ_FIRST(&s->lastw);
1.37 nicm 461: if (wl == NULL)
462: return (-1);
463: if (wl == s->curw)
464: return (1);
465:
466: return (session_set_current(s, wl));
467: }
468:
469: /* Set current winlink to wl .*/
470: int
471: session_set_current(struct session *s, struct winlink *wl)
472: {
1.1 nicm 473: if (wl == NULL)
474: return (-1);
475: if (wl == s->curw)
476: return (1);
477:
478: winlink_stack_remove(&s->lastw, wl);
479: winlink_stack_push(&s->lastw, s->curw);
480: s->curw = wl;
1.35 nicm 481: winlink_clear_flags(wl);
1.1 nicm 482: return (0);
1.11 nicm 483: }
484:
485: /* Find the session group containing a session. */
486: struct session_group *
487: session_group_find(struct session *target)
488: {
489: struct session_group *sg;
490: struct session *s;
491:
492: TAILQ_FOREACH(sg, &session_groups, entry) {
493: TAILQ_FOREACH(s, &sg->sessions, gentry) {
494: if (s == target)
495: return (sg);
496: }
497: }
498: return (NULL);
499: }
500:
501: /* Find session group index. */
502: u_int
503: session_group_index(struct session_group *sg)
504: {
505: struct session_group *sg2;
506: u_int i;
507:
508: i = 0;
509: TAILQ_FOREACH(sg2, &session_groups, entry) {
510: if (sg == sg2)
511: return (i);
512: i++;
513: }
514:
515: fatalx("session group not found");
516: }
517:
518: /*
519: * Add a session to the session group containing target, creating it if
1.15 nicm 520: * necessary.
1.11 nicm 521: */
522: void
523: session_group_add(struct session *target, struct session *s)
524: {
525: struct session_group *sg;
526:
527: if ((sg = session_group_find(target)) == NULL) {
528: sg = xmalloc(sizeof *sg);
529: TAILQ_INSERT_TAIL(&session_groups, sg, entry);
530: TAILQ_INIT(&sg->sessions);
531: TAILQ_INSERT_TAIL(&sg->sessions, target, gentry);
532: }
533: TAILQ_INSERT_TAIL(&sg->sessions, s, gentry);
534: }
535:
536: /* Remove a session from its group and destroy the group if empty. */
537: void
538: session_group_remove(struct session *s)
539: {
540: struct session_group *sg;
541:
542: if ((sg = session_group_find(s)) == NULL)
543: return;
544: TAILQ_REMOVE(&sg->sessions, s, gentry);
545: if (TAILQ_NEXT(TAILQ_FIRST(&sg->sessions), gentry) == NULL)
546: TAILQ_REMOVE(&sg->sessions, TAILQ_FIRST(&sg->sessions), gentry);
547: if (TAILQ_EMPTY(&sg->sessions)) {
548: TAILQ_REMOVE(&session_groups, sg, entry);
1.36 nicm 549: free(sg);
1.11 nicm 550: }
551: }
552:
1.45 nicm 553: /* Count number of sessions in session group. */
554: u_int
555: session_group_count(struct session_group *sg)
556: {
557: struct session *s;
558: u_int n;
559:
560: n = 0;
561: TAILQ_FOREACH(s, &sg->sessions, gentry)
562: n++;
563: return (n);
564: }
565:
1.11 nicm 566: /* Synchronize a session to its session group. */
567: void
568: session_group_synchronize_to(struct session *s)
569: {
570: struct session_group *sg;
571: struct session *target;
572:
573: if ((sg = session_group_find(s)) == NULL)
574: return;
575:
576: target = NULL;
577: TAILQ_FOREACH(target, &sg->sessions, gentry) {
578: if (target != s)
579: break;
580: }
581: session_group_synchronize1(target, s);
582: }
583:
584: /* Synchronize a session group to a session. */
585: void
586: session_group_synchronize_from(struct session *target)
587: {
588: struct session_group *sg;
589: struct session *s;
590:
591: if ((sg = session_group_find(target)) == NULL)
592: return;
593:
594: TAILQ_FOREACH(s, &sg->sessions, gentry) {
595: if (s != target)
596: session_group_synchronize1(target, s);
597: }
598: }
599:
600: /*
601: * Synchronize a session with a target session. This means destroying all
602: * winlinks then recreating them, then updating the current window, last window
603: * stack and alerts.
604: */
605: void
606: session_group_synchronize1(struct session *target, struct session *s)
607: {
608: struct winlinks old_windows, *ww;
609: struct winlink_stack old_lastw;
610: struct winlink *wl, *wl2;
611:
612: /* Don't do anything if the session is empty (it'll be destroyed). */
613: ww = &target->windows;
614: if (RB_EMPTY(ww))
615: return;
616:
617: /* If the current window has vanished, move to the next now. */
1.16 nicm 618: if (s->curw != NULL &&
619: winlink_find_by_index(ww, s->curw->idx) == NULL &&
620: session_last(s) != 0 && session_previous(s, 0) != 0)
621: session_next(s, 0);
1.11 nicm 622:
623: /* Save the old pointer and reset it. */
624: memcpy(&old_windows, &s->windows, sizeof old_windows);
625: RB_INIT(&s->windows);
626:
627: /* Link all the windows from the target. */
1.18 nicm 628: RB_FOREACH(wl, winlinks, ww) {
1.30 nicm 629: wl2 = winlink_add(&s->windows, wl->idx);
630: winlink_set_window(wl2, wl->window);
1.33 nicm 631: notify_window_linked(s, wl2->window);
1.18 nicm 632: wl2->flags |= wl->flags & WINLINK_ALERTFLAGS;
633: }
1.11 nicm 634:
635: /* Fix up the current window. */
636: if (s->curw != NULL)
637: s->curw = winlink_find_by_index(&s->windows, s->curw->idx);
638: else
639: s->curw = winlink_find_by_index(&s->windows, target->curw->idx);
640:
641: /* Fix up the last window stack. */
642: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
643: TAILQ_INIT(&s->lastw);
644: TAILQ_FOREACH(wl, &old_lastw, sentry) {
645: wl2 = winlink_find_by_index(&s->windows, wl->idx);
646: if (wl2 != NULL)
647: TAILQ_INSERT_TAIL(&s->lastw, wl2, sentry);
648: }
649:
650: /* Then free the old winlinks list. */
651: while (!RB_EMPTY(&old_windows)) {
652: wl = RB_ROOT(&old_windows);
1.45 nicm 653: wl2 = winlink_find_by_window_id(&s->windows, wl->window->id);
654: if (wl2 == NULL)
655: notify_window_unlinked(s, wl->window);
1.13 nicm 656: winlink_remove(&old_windows, wl);
1.11 nicm 657: }
1.34 nicm 658: }
659:
660: /* Renumber the windows across winlinks attached to a specific session. */
661: void
662: session_renumber_windows(struct session *s)
663: {
664: struct winlink *wl, *wl1, *wl_new;
665: struct winlinks old_wins;
666: struct winlink_stack old_lastw;
667: int new_idx, new_curw_idx;
668:
669: /* Save and replace old window list. */
670: memcpy(&old_wins, &s->windows, sizeof old_wins);
671: RB_INIT(&s->windows);
672:
673: /* Start renumbering from the base-index if it's set. */
674: new_idx = options_get_number(&s->options, "base-index");
675: new_curw_idx = 0;
676:
677: /* Go through the winlinks and assign new indexes. */
678: RB_FOREACH(wl, winlinks, &old_wins) {
679: wl_new = winlink_add(&s->windows, new_idx);
680: winlink_set_window(wl_new, wl->window);
681: wl_new->flags |= wl->flags & WINLINK_ALERTFLAGS;
682:
683: if (wl == s->curw)
684: new_curw_idx = wl_new->idx;
685:
686: new_idx++;
687: }
688:
689: /* Fix the stack of last windows now. */
690: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
691: TAILQ_INIT(&s->lastw);
692: TAILQ_FOREACH(wl, &old_lastw, sentry) {
1.40 nicm 693: wl_new = winlink_find_by_window(&s->windows, wl->window);
1.34 nicm 694: if (wl_new != NULL)
695: TAILQ_INSERT_TAIL(&s->lastw, wl_new, sentry);
696: }
697:
698: /* Set the current window. */
699: s->curw = winlink_find_by_index(&s->windows, new_curw_idx);
700:
701: /* Free the old winlinks (reducing window references too). */
702: RB_FOREACH_SAFE(wl, winlinks, &old_wins, wl1)
703: winlink_remove(&old_wins, wl);
1.1 nicm 704: }
![[BACK]](/icons/back.gif){kind=icon}
Return to session.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux