Annotation of src/usr.bin/tmux/session.c, Revision 1.87
1.87 ! nicm 1: /* $OpenBSD: session.c,v 1.86 2019/12/26 11:04:58 nicm Exp $ */
1.1 nicm 2:
3: /*
1.62 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.87 ! nicm 26: #include <vis.h>
1.10 nicm 27: #include <time.h>
1.1 nicm 28:
29: #include "tmux.h"
30:
1.63 nicm 31: struct sessions sessions;
32: static u_int next_session_id;
1.80 nicm 33: struct session_groups session_groups = RB_INITIALIZER(&session_groups);
1.1 nicm 34:
1.63 nicm 35: static void session_free(int, short, void *);
1.50 nicm 36:
1.63 nicm 37: static void session_lock_timer(int, short, void *);
1.52 nicm 38:
1.63 nicm 39: static struct winlink *session_next_alert(struct winlink *);
40: static struct winlink *session_previous_alert(struct winlink *);
1.21 nicm 41:
1.64 nicm 42: static void session_group_remove(struct session *);
1.72 nicm 43: static void session_group_synchronize1(struct session *, struct session *);
44:
1.25 nicm 45: int
46: session_cmp(struct session *s1, struct session *s2)
47: {
48: return (strcmp(s1->name, s2->name));
49: }
1.80 nicm 50: RB_GENERATE(sessions, session, entry, session_cmp);
1.25 nicm 51:
1.80 nicm 52: static int
1.72 nicm 53: session_group_cmp(struct session_group *s1, struct session_group *s2)
54: {
55: return (strcmp(s1->name, s2->name));
56: }
1.80 nicm 57: RB_GENERATE_STATIC(session_groups, session_group, entry, session_group_cmp);
1.72 nicm 58:
1.21 nicm 59: /*
60: * Find if session is still alive. This is true if it is still on the global
61: * sessions list.
62: */
63: int
64: session_alive(struct session *s)
65: {
1.25 nicm 66: struct session *s_loop;
1.21 nicm 67:
1.25 nicm 68: RB_FOREACH(s_loop, sessions, &sessions) {
69: if (s_loop == s)
70: return (1);
71: }
72: return (0);
1.21 nicm 73: }
1.1 nicm 74:
75: /* Find session by name. */
76: struct session *
77: session_find(const char *name)
78: {
1.25 nicm 79: struct session s;
80:
81: s.name = (char *) name;
82: return (RB_FIND(sessions, &sessions, &s));
1.48 nicm 83: }
84:
85: /* Find session by id parsed from a string. */
86: struct session *
87: session_find_by_id_str(const char *s)
88: {
89: const char *errstr;
90: u_int id;
91:
92: if (*s != '$')
93: return (NULL);
94:
95: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
96: if (errstr != NULL)
97: return (NULL);
98: return (session_find_by_id(id));
1.25 nicm 99: }
100:
1.38 nicm 101: /* Find session by id. */
1.25 nicm 102: struct session *
1.38 nicm 103: session_find_by_id(u_int id)
1.25 nicm 104: {
1.1 nicm 105: struct session *s;
106:
1.25 nicm 107: RB_FOREACH(s, sessions, &sessions) {
1.38 nicm 108: if (s->id == id)
1.1 nicm 109: return (s);
110: }
111: return (NULL);
112: }
113:
114: /* Create a new session. */
115: struct session *
1.84 nicm 116: session_create(const char *prefix, const char *name, const char *cwd,
117: struct environ *env, struct options *oo, struct termios *tio)
1.1 nicm 118: {
119: struct session *s;
120:
1.52 nicm 121: s = xcalloc(1, sizeof *s);
1.50 nicm 122: s->references = 1;
1.1 nicm 123: s->flags = 0;
1.7 nicm 124:
1.58 nicm 125: s->cwd = xstrdup(cwd);
1.19 nicm 126:
1.11 nicm 127: TAILQ_INIT(&s->lastw);
1.1 nicm 128: RB_INIT(&s->windows);
1.7 nicm 129:
1.84 nicm 130: s->environ = env;
1.82 nicm 131: s->options = oo;
1.71 nicm 132:
1.83 nicm 133: status_update_cache(s);
1.8 nicm 134:
135: s->tio = NULL;
136: if (tio != NULL) {
137: s->tio = xmalloc(sizeof *s->tio);
138: memcpy(s->tio, tio, sizeof *s->tio);
139: }
1.1 nicm 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: do {
1.38 nicm 146: s->id = next_session_id++;
1.46 nicm 147: free(s->name);
1.72 nicm 148: if (prefix != NULL)
149: xasprintf(&s->name, "%s-%u", prefix, s->id);
150: else
151: xasprintf(&s->name, "%u", s->id);
1.32 nicm 152: } while (RB_FIND(sessions, &sessions, s) != NULL);
153: }
1.25 nicm 154: RB_INSERT(sessions, &sessions, s);
1.15 nicm 155:
1.59 nicm 156: log_debug("new session %s $%u", s->name, s->id);
157:
1.52 nicm 158: if (gettimeofday(&s->creation_time, NULL) != 0)
159: fatal("gettimeofday failed");
160: session_update_activity(s, &s->creation_time);
161:
1.1 nicm 162: return (s);
163: }
164:
1.75 nicm 165: /* Add a reference to a session. */
166: void
167: session_add_ref(struct session *s, const char *from)
168: {
169: s->references++;
170: log_debug("%s: %s %s, now %d", __func__, s->name, from, s->references);
171: }
172:
1.50 nicm 173: /* Remove a reference from a session. */
174: void
1.75 nicm 175: session_remove_ref(struct session *s, const char *from)
1.50 nicm 176: {
1.75 nicm 177: s->references--;
178: log_debug("%s: %s %s, now %d", __func__, s->name, from, s->references);
1.50 nicm 179:
180: if (s->references == 0)
181: event_once(-1, EV_TIMEOUT, session_free, s, NULL);
182: }
183:
184: /* Free session. */
1.63 nicm 185: static void
1.60 nicm 186: session_free(__unused int fd, __unused short events, void *arg)
1.50 nicm 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) {
1.57 nicm 193: environ_free(s->environ);
1.56 nicm 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
1.84 nicm 203: session_destroy(struct session *s, int notify, const char *from)
1.1 nicm 204: {
1.33 nicm 205: struct winlink *wl;
1.39 nicm 206:
1.77 nicm 207: log_debug("session %s destroyed (%s)", s->name, from);
1.66 nicm 208: s->curw = NULL;
1.1 nicm 209:
1.25 nicm 210: RB_REMOVE(sessions, &sessions, s);
1.84 nicm 211: if (notify)
212: notify_session("session-closed", s);
1.1 nicm 213:
1.36 nicm 214: free(s->tio);
1.8 nicm 215:
1.52 nicm 216: if (event_initialized(&s->lock_timer))
217: event_del(&s->lock_timer);
218:
1.11 nicm 219: session_group_remove(s);
1.1 nicm 220:
1.11 nicm 221: while (!TAILQ_EMPTY(&s->lastw))
222: winlink_stack_remove(&s->lastw, TAILQ_FIRST(&s->lastw));
1.33 nicm 223: while (!RB_EMPTY(&s->windows)) {
224: wl = RB_ROOT(&s->windows);
1.68 nicm 225: notify_session_window("window-unlinked", s, wl->window);
1.33 nicm 226: winlink_remove(&s->windows, wl);
227: }
1.1 nicm 228:
1.58 nicm 229: free((void *)s->cwd);
1.15 nicm 230:
1.75 nicm 231: session_remove_ref(s, __func__);
1.31 nicm 232: }
233:
1.87 ! nicm 234: /* Sanitize session name. */
! 235: char *
1.31 nicm 236: session_check_name(const char *name)
237: {
1.87 ! nicm 238: char *copy, *cp, *new_name;
! 239:
! 240: copy = xstrdup(name);
! 241: for (cp = copy; *cp != '\0'; cp++) {
! 242: if (*cp == ':' || *cp == '.')
! 243: *cp = '_';
! 244: }
! 245: utf8_stravis(&new_name, copy, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
! 246: free(copy);
! 247: return (new_name);
1.27 nicm 248: }
249:
1.52 nicm 250: /* Lock session if it has timed out. */
1.63 nicm 251: static void
1.60 nicm 252: session_lock_timer(__unused int fd, __unused short events, void *arg)
1.52 nicm 253: {
254: struct session *s = arg;
255:
1.81 nicm 256: if (s->attached == 0)
1.52 nicm 257: return;
258:
259: log_debug("session %s locked, activity time %lld", s->name,
260: (long long)s->activity_time.tv_sec);
261:
262: server_lock_session(s);
263: recalculate_sizes();
264: }
265:
1.51 nicm 266: /* Update activity time. */
1.27 nicm 267: void
1.51 nicm 268: session_update_activity(struct session *s, struct timeval *from)
1.27 nicm 269: {
1.51 nicm 270: struct timeval *last = &s->last_activity_time;
1.52 nicm 271: struct timeval tv;
1.51 nicm 272:
273: memcpy(last, &s->activity_time, sizeof *last);
274: if (from == NULL)
275: gettimeofday(&s->activity_time, NULL);
276: else
277: memcpy(&s->activity_time, from, sizeof s->activity_time);
1.59 nicm 278:
1.79 nicm 279: log_debug("session $%u %s activity %lld.%06d (last %lld.%06d)", s->id,
280: s->name, (long long)s->activity_time.tv_sec,
281: (int)s->activity_time.tv_usec, (long long)last->tv_sec,
282: (int)last->tv_usec);
1.52 nicm 283:
284: if (evtimer_initialized(&s->lock_timer))
285: evtimer_del(&s->lock_timer);
286: else
287: evtimer_set(&s->lock_timer, session_lock_timer, s);
288:
1.81 nicm 289: if (s->attached != 0) {
1.52 nicm 290: timerclear(&tv);
1.56 nicm 291: tv.tv_sec = options_get_number(s->options, "lock-after-time");
1.52 nicm 292: if (tv.tv_sec != 0)
293: evtimer_add(&s->lock_timer, &tv);
294: }
1.20 nicm 295: }
296:
297: /* Find the next usable session. */
298: struct session *
299: session_next_session(struct session *s)
300: {
301: struct session *s2;
302:
1.25 nicm 303: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 304: return (NULL);
305:
1.29 nicm 306: s2 = RB_NEXT(sessions, &sessions, s);
1.28 nicm 307: if (s2 == NULL)
308: s2 = RB_MIN(sessions, &sessions);
1.25 nicm 309: if (s2 == s)
310: return (NULL);
1.20 nicm 311: return (s2);
312: }
313:
314: /* Find the previous usable session. */
315: struct session *
316: session_previous_session(struct session *s)
317: {
318: struct session *s2;
319:
1.25 nicm 320: if (RB_EMPTY(&sessions) || !session_alive(s))
1.20 nicm 321: return (NULL);
322:
1.29 nicm 323: s2 = RB_PREV(sessions, &sessions, s);
1.28 nicm 324: if (s2 == NULL)
325: s2 = RB_MAX(sessions, &sessions);
1.25 nicm 326: if (s2 == s)
327: return (NULL);
1.20 nicm 328: return (s2);
1.1 nicm 329: }
330:
331: /* Attach a window to a session. */
332: struct winlink *
333: session_attach(struct session *s, struct window *w, int idx, char **cause)
334: {
335: struct winlink *wl;
336:
1.30 nicm 337: if ((wl = winlink_add(&s->windows, idx)) == NULL) {
1.1 nicm 338: xasprintf(cause, "index in use: %d", idx);
1.30 nicm 339: return (NULL);
340: }
1.70 nicm 341: wl->session = s;
1.30 nicm 342: winlink_set_window(wl, w);
1.68 nicm 343: notify_session_window("window-linked", s, w);
1.30 nicm 344:
1.11 nicm 345: session_group_synchronize_from(s);
1.1 nicm 346: return (wl);
347: }
348:
349: /* Detach a window from a session. */
350: int
351: session_detach(struct session *s, struct winlink *wl)
352: {
353: if (s->curw == wl &&
1.66 nicm 354: session_last(s) != 0 &&
355: session_previous(s, 0) != 0)
1.1 nicm 356: session_next(s, 0);
357:
1.18 nicm 358: wl->flags &= ~WINLINK_ALERTFLAGS;
1.68 nicm 359: notify_session_window("window-unlinked", s, wl->window);
1.1 nicm 360: winlink_stack_remove(&s->lastw, wl);
361: winlink_remove(&s->windows, wl);
1.66 nicm 362:
1.11 nicm 363: session_group_synchronize_from(s);
1.66 nicm 364:
1.1 nicm 365: if (RB_EMPTY(&s->windows)) {
1.84 nicm 366: session_destroy(s, 1, __func__);
1.1 nicm 367: return (1);
368: }
369: return (0);
370: }
371:
372: /* Return if session has window. */
1.47 nicm 373: int
1.1 nicm 374: session_has(struct session *s, struct window *w)
375: {
376: struct winlink *wl;
377:
1.70 nicm 378: TAILQ_FOREACH(wl, &w->winlinks, wentry) {
379: if (wl->session == s)
1.47 nicm 380: return (1);
1.1 nicm 381: }
1.47 nicm 382: return (0);
1.49 nicm 383: }
384:
385: /*
386: * Return 1 if a window is linked outside this session (not including session
387: * groups). The window must be in this session!
388: */
389: int
390: session_is_linked(struct session *s, struct window *w)
391: {
392: struct session_group *sg;
393:
1.72 nicm 394: if ((sg = session_group_contains(s)) != NULL)
1.49 nicm 395: return (w->references != session_group_count(sg));
396: return (w->references != 1);
1.1 nicm 397: }
398:
1.63 nicm 399: static struct winlink *
1.18 nicm 400: session_next_alert(struct winlink *wl)
1.1 nicm 401: {
402: while (wl != NULL) {
1.18 nicm 403: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 404: break;
1.14 nicm 405: wl = winlink_next(wl);
1.1 nicm 406: }
407: return (wl);
408: }
409:
410: /* Move session to next window. */
411: int
1.17 nicm 412: session_next(struct session *s, int alert)
1.1 nicm 413: {
414: struct winlink *wl;
415:
416: if (s->curw == NULL)
417: return (-1);
418:
1.14 nicm 419: wl = winlink_next(s->curw);
1.17 nicm 420: if (alert)
1.18 nicm 421: wl = session_next_alert(wl);
1.1 nicm 422: if (wl == NULL) {
423: wl = RB_MIN(winlinks, &s->windows);
1.18 nicm 424: if (alert && ((wl = session_next_alert(wl)) == NULL))
1.1 nicm 425: return (-1);
426: }
1.37 nicm 427: return (session_set_current(s, wl));
1.1 nicm 428: }
429:
1.63 nicm 430: static struct winlink *
1.18 nicm 431: session_previous_alert(struct winlink *wl)
1.1 nicm 432: {
433: while (wl != NULL) {
1.18 nicm 434: if (wl->flags & WINLINK_ALERTFLAGS)
1.1 nicm 435: break;
1.14 nicm 436: wl = winlink_previous(wl);
1.1 nicm 437: }
438: return (wl);
439: }
440:
441: /* Move session to previous window. */
442: int
1.17 nicm 443: session_previous(struct session *s, int alert)
1.1 nicm 444: {
445: struct winlink *wl;
446:
447: if (s->curw == NULL)
448: return (-1);
449:
1.14 nicm 450: wl = winlink_previous(s->curw);
1.17 nicm 451: if (alert)
1.18 nicm 452: wl = session_previous_alert(wl);
1.1 nicm 453: if (wl == NULL) {
454: wl = RB_MAX(winlinks, &s->windows);
1.18 nicm 455: if (alert && (wl = session_previous_alert(wl)) == NULL)
1.1 nicm 456: return (-1);
457: }
1.37 nicm 458: return (session_set_current(s, wl));
1.1 nicm 459: }
460:
461: /* Move session to specific window. */
462: int
463: session_select(struct session *s, int idx)
464: {
465: struct winlink *wl;
466:
467: wl = winlink_find_by_index(&s->windows, idx);
1.37 nicm 468: return (session_set_current(s, wl));
1.1 nicm 469: }
470:
471: /* Move session to last used window. */
472: int
473: session_last(struct session *s)
474: {
475: struct winlink *wl;
476:
1.11 nicm 477: wl = TAILQ_FIRST(&s->lastw);
1.37 nicm 478: if (wl == NULL)
479: return (-1);
480: if (wl == s->curw)
481: return (1);
482:
483: return (session_set_current(s, wl));
484: }
485:
486: /* Set current winlink to wl .*/
487: int
488: session_set_current(struct session *s, struct winlink *wl)
489: {
1.1 nicm 490: if (wl == NULL)
491: return (-1);
492: if (wl == s->curw)
493: return (1);
494:
495: winlink_stack_remove(&s->lastw, wl);
496: winlink_stack_push(&s->lastw, s->curw);
497: s->curw = wl;
1.35 nicm 498: winlink_clear_flags(wl);
1.54 nicm 499: window_update_activity(wl->window);
1.82 nicm 500: tty_update_window_offset(wl->window);
1.76 nicm 501: notify_session("session-window-changed", s);
1.1 nicm 502: return (0);
1.11 nicm 503: }
504:
505: /* Find the session group containing a session. */
506: struct session_group *
1.72 nicm 507: session_group_contains(struct session *target)
1.11 nicm 508: {
509: struct session_group *sg;
510: struct session *s;
511:
1.72 nicm 512: RB_FOREACH(sg, session_groups, &session_groups) {
1.11 nicm 513: TAILQ_FOREACH(s, &sg->sessions, gentry) {
514: if (s == target)
515: return (sg);
516: }
517: }
518: return (NULL);
519: }
520:
1.72 nicm 521: /* Find session group by name. */
522: struct session_group *
523: session_group_find(const char *name)
1.11 nicm 524: {
1.72 nicm 525: struct session_group sg;
526:
527: sg.name = name;
528: return (RB_FIND(session_groups, &session_groups, &sg));
529: }
1.11 nicm 530:
1.72 nicm 531: /* Create a new session group. */
532: struct session_group *
533: session_group_new(const char *name)
534: {
535: struct session_group *sg;
536:
537: if ((sg = session_group_find(name)) != NULL)
538: return (sg);
539:
540: sg = xcalloc(1, sizeof *sg);
541: sg->name = xstrdup(name);
542: TAILQ_INIT(&sg->sessions);
1.11 nicm 543:
1.72 nicm 544: RB_INSERT(session_groups, &session_groups, sg);
545: return (sg);
1.11 nicm 546: }
547:
1.72 nicm 548: /* Add a session to a session group. */
1.11 nicm 549: void
1.72 nicm 550: session_group_add(struct session_group *sg, struct session *s)
1.11 nicm 551: {
1.72 nicm 552: if (session_group_contains(s) == NULL)
553: TAILQ_INSERT_TAIL(&sg->sessions, s, gentry);
1.11 nicm 554: }
555:
556: /* Remove a session from its group and destroy the group if empty. */
1.64 nicm 557: static void
1.11 nicm 558: session_group_remove(struct session *s)
559: {
560: struct session_group *sg;
561:
1.72 nicm 562: if ((sg = session_group_contains(s)) == NULL)
1.11 nicm 563: return;
564: TAILQ_REMOVE(&sg->sessions, s, gentry);
565: if (TAILQ_EMPTY(&sg->sessions)) {
1.72 nicm 566: RB_REMOVE(session_groups, &session_groups, sg);
1.87 ! nicm 567: free((void *)sg->name);
1.36 nicm 568: free(sg);
1.11 nicm 569: }
570: }
571:
1.45 nicm 572: /* Count number of sessions in session group. */
1.78 nicm 573: u_int
1.45 nicm 574: session_group_count(struct session_group *sg)
575: {
576: struct session *s;
577: u_int n;
578:
579: n = 0;
580: TAILQ_FOREACH(s, &sg->sessions, gentry)
1.86 nicm 581: n++;
582: return (n);
583: }
584:
585: /* Count number of clients attached to sessions in session group. */
586: u_int
587: session_group_attached_count(struct session_group *sg)
588: {
589: struct session *s;
590: u_int n;
591:
592: n = 0;
593: TAILQ_FOREACH(s, &sg->sessions, gentry)
594: n += s->attached;
1.45 nicm 595: return (n);
596: }
597:
1.11 nicm 598: /* Synchronize a session to its session group. */
599: void
600: session_group_synchronize_to(struct session *s)
601: {
602: struct session_group *sg;
603: struct session *target;
604:
1.72 nicm 605: if ((sg = session_group_contains(s)) == NULL)
1.11 nicm 606: return;
607:
608: target = NULL;
609: TAILQ_FOREACH(target, &sg->sessions, gentry) {
610: if (target != s)
611: break;
612: }
1.72 nicm 613: if (target != NULL)
614: session_group_synchronize1(target, s);
1.11 nicm 615: }
616:
617: /* Synchronize a session group to a session. */
618: void
619: session_group_synchronize_from(struct session *target)
620: {
621: struct session_group *sg;
622: struct session *s;
623:
1.72 nicm 624: if ((sg = session_group_contains(target)) == NULL)
1.11 nicm 625: return;
626:
627: TAILQ_FOREACH(s, &sg->sessions, gentry) {
628: if (s != target)
629: session_group_synchronize1(target, s);
630: }
631: }
632:
633: /*
634: * Synchronize a session with a target session. This means destroying all
635: * winlinks then recreating them, then updating the current window, last window
636: * stack and alerts.
637: */
1.64 nicm 638: static void
1.11 nicm 639: session_group_synchronize1(struct session *target, struct session *s)
640: {
641: struct winlinks old_windows, *ww;
642: struct winlink_stack old_lastw;
643: struct winlink *wl, *wl2;
644:
645: /* Don't do anything if the session is empty (it'll be destroyed). */
646: ww = &target->windows;
647: if (RB_EMPTY(ww))
648: return;
649:
650: /* If the current window has vanished, move to the next now. */
1.16 nicm 651: if (s->curw != NULL &&
652: winlink_find_by_index(ww, s->curw->idx) == NULL &&
653: session_last(s) != 0 && session_previous(s, 0) != 0)
654: session_next(s, 0);
1.11 nicm 655:
656: /* Save the old pointer and reset it. */
657: memcpy(&old_windows, &s->windows, sizeof old_windows);
658: RB_INIT(&s->windows);
659:
660: /* Link all the windows from the target. */
1.18 nicm 661: RB_FOREACH(wl, winlinks, ww) {
1.30 nicm 662: wl2 = winlink_add(&s->windows, wl->idx);
1.70 nicm 663: wl2->session = s;
1.30 nicm 664: winlink_set_window(wl2, wl->window);
1.68 nicm 665: notify_session_window("window-linked", s, wl2->window);
1.18 nicm 666: wl2->flags |= wl->flags & WINLINK_ALERTFLAGS;
667: }
1.11 nicm 668:
669: /* Fix up the current window. */
670: if (s->curw != NULL)
671: s->curw = winlink_find_by_index(&s->windows, s->curw->idx);
672: else
673: s->curw = winlink_find_by_index(&s->windows, target->curw->idx);
674:
675: /* Fix up the last window stack. */
676: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
677: TAILQ_INIT(&s->lastw);
678: TAILQ_FOREACH(wl, &old_lastw, sentry) {
679: wl2 = winlink_find_by_index(&s->windows, wl->idx);
680: if (wl2 != NULL)
681: TAILQ_INSERT_TAIL(&s->lastw, wl2, sentry);
682: }
683:
684: /* Then free the old winlinks list. */
685: while (!RB_EMPTY(&old_windows)) {
686: wl = RB_ROOT(&old_windows);
1.45 nicm 687: wl2 = winlink_find_by_window_id(&s->windows, wl->window->id);
688: if (wl2 == NULL)
1.68 nicm 689: notify_session_window("window-unlinked", s, wl->window);
1.13 nicm 690: winlink_remove(&old_windows, wl);
1.11 nicm 691: }
1.34 nicm 692: }
693:
694: /* Renumber the windows across winlinks attached to a specific session. */
695: void
696: session_renumber_windows(struct session *s)
697: {
698: struct winlink *wl, *wl1, *wl_new;
699: struct winlinks old_wins;
700: struct winlink_stack old_lastw;
701: int new_idx, new_curw_idx;
702:
703: /* Save and replace old window list. */
704: memcpy(&old_wins, &s->windows, sizeof old_wins);
705: RB_INIT(&s->windows);
706:
707: /* Start renumbering from the base-index if it's set. */
1.56 nicm 708: new_idx = options_get_number(s->options, "base-index");
1.34 nicm 709: new_curw_idx = 0;
710:
711: /* Go through the winlinks and assign new indexes. */
712: RB_FOREACH(wl, winlinks, &old_wins) {
713: wl_new = winlink_add(&s->windows, new_idx);
1.70 nicm 714: wl_new->session = s;
1.34 nicm 715: winlink_set_window(wl_new, wl->window);
716: wl_new->flags |= wl->flags & WINLINK_ALERTFLAGS;
717:
718: if (wl == s->curw)
719: new_curw_idx = wl_new->idx;
720:
721: new_idx++;
722: }
723:
724: /* Fix the stack of last windows now. */
725: memcpy(&old_lastw, &s->lastw, sizeof old_lastw);
726: TAILQ_INIT(&s->lastw);
727: TAILQ_FOREACH(wl, &old_lastw, sentry) {
1.40 nicm 728: wl_new = winlink_find_by_window(&s->windows, wl->window);
1.34 nicm 729: if (wl_new != NULL)
730: TAILQ_INSERT_TAIL(&s->lastw, wl_new, sentry);
731: }
732:
733: /* Set the current window. */
734: s->curw = winlink_find_by_index(&s->windows, new_curw_idx);
735:
736: /* Free the old winlinks (reducing window references too). */
737: RB_FOREACH_SAFE(wl, winlinks, &old_wins, wl1)
738: winlink_remove(&old_wins, wl);
1.1 nicm 739: }
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