Annotation of src/usr.bin/tmux/alerts.c, Revision 1.28
1.28 ! nicm 1: /* $OpenBSD: alerts.c,v 1.27 2017/09/11 20:11:45 nicm Exp $ */
1.1 nicm 2:
3: /*
1.10 nicm 4: * Copyright (c) 2015 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:
21: #include <event.h>
1.14 nicm 22: #include <stdlib.h>
1.1 nicm 23:
24: #include "tmux.h"
25:
1.12 nicm 26: static int alerts_fired;
1.1 nicm 27:
1.12 nicm 28: static void alerts_timer(int, short, void *);
29: static int alerts_enabled(struct window *, int);
30: static void alerts_callback(int, short, void *);
31: static void alerts_reset(struct window *);
32:
1.25 nicm 33: static int alerts_action_applies(struct winlink *, const char *);
1.14 nicm 34: static int alerts_check_all(struct window *);
35: static int alerts_check_bell(struct window *);
36: static int alerts_check_activity(struct window *);
37: static int alerts_check_silence(struct window *);
1.25 nicm 38: static void alerts_set_message(struct winlink *, const char *,
39: const char *);
1.1 nicm 40:
1.14 nicm 41: static TAILQ_HEAD(, window) alerts_list = TAILQ_HEAD_INITIALIZER(alerts_list);
42:
1.12 nicm 43: static void
1.5 nicm 44: alerts_timer(__unused int fd, __unused short events, void *arg)
1.1 nicm 45: {
46: struct window *w = arg;
47:
48: log_debug("@%u alerts timer expired", w->id);
49: alerts_queue(w, WINDOW_SILENCE);
50: }
51:
1.12 nicm 52: static void
1.5 nicm 53: alerts_callback(__unused int fd, __unused short events, __unused void *arg)
1.1 nicm 54: {
1.14 nicm 55: struct window *w, *w1;
56: int alerts;
1.1 nicm 57:
1.14 nicm 58: TAILQ_FOREACH_SAFE(w, &alerts_list, alerts_entry, w1) {
59: alerts = alerts_check_all(w);
60: log_debug("@%u alerts check, alerts %#x", w->id, alerts);
61:
62: w->alerts_queued = 0;
63: TAILQ_REMOVE(&alerts_list, w, alerts_entry);
1.16 nicm 64:
65: w->flags &= ~WINDOW_ALERTFLAGS;
1.19 nicm 66: window_remove_ref(w, __func__);
1.1 nicm 67: }
68: alerts_fired = 0;
69: }
70:
1.12 nicm 71: static int
1.25 nicm 72: alerts_action_applies(struct winlink *wl, const char *name)
73: {
74: int action;
75:
76: /*
77: * {bell,activity,silence}-action determines when to alert: none means
78: * nothing happens, current means only do something for the current
79: * window and other means only for windows other than the current.
80: */
81:
82: action = options_get_number(wl->session->options, name);
83: if (action == ALERT_ANY)
84: return (1);
85: if (action == ALERT_CURRENT)
86: return (wl == wl->session->curw);
87: if (action == ALERT_OTHER)
88: return (wl != wl->session->curw);
89: return (0);
90: }
91:
92: static int
1.14 nicm 93: alerts_check_all(struct window *w)
1.8 nicm 94: {
95: int alerts;
96:
1.25 nicm 97: alerts = alerts_check_bell(w);
1.14 nicm 98: alerts |= alerts_check_activity(w);
99: alerts |= alerts_check_silence(w);
1.8 nicm 100: return (alerts);
101: }
102:
103: void
104: alerts_check_session(struct session *s)
105: {
106: struct winlink *wl;
107:
108: RB_FOREACH(wl, winlinks, &s->windows)
1.14 nicm 109: alerts_check_all(wl->window);
1.8 nicm 110: }
111:
1.12 nicm 112: static int
1.1 nicm 113: alerts_enabled(struct window *w, int flags)
114: {
1.24 nicm 115: if (flags & WINDOW_BELL) {
116: if (options_get_number(w->options, "monitor-bell"))
117: return (1);
118: }
1.1 nicm 119: if (flags & WINDOW_ACTIVITY) {
1.4 nicm 120: if (options_get_number(w->options, "monitor-activity"))
1.1 nicm 121: return (1);
122: }
123: if (flags & WINDOW_SILENCE) {
1.4 nicm 124: if (options_get_number(w->options, "monitor-silence") != 0)
1.1 nicm 125: return (1);
126: }
127: return (0);
128: }
129:
130: void
131: alerts_reset_all(void)
132: {
133: struct window *w;
134:
135: RB_FOREACH(w, windows, &windows)
136: alerts_reset(w);
137: }
138:
1.12 nicm 139: static void
1.1 nicm 140: alerts_reset(struct window *w)
141: {
142: struct timeval tv;
143:
1.28 ! nicm 144: if (!event_initialized(&w->alerts_timer))
! 145: evtimer_set(&w->alerts_timer, alerts_timer, w);
! 146:
1.1 nicm 147: w->flags &= ~WINDOW_SILENCE;
1.28 ! nicm 148: event_del(&w->alerts_timer);
1.1 nicm 149:
150: timerclear(&tv);
1.4 nicm 151: tv.tv_sec = options_get_number(w->options, "monitor-silence");
1.1 nicm 152:
153: log_debug("@%u alerts timer reset %u", w->id, (u_int)tv.tv_sec);
154: if (tv.tv_sec != 0)
155: event_add(&w->alerts_timer, &tv);
156: }
157:
158: void
159: alerts_queue(struct window *w, int flags)
160: {
1.22 nicm 161: alerts_reset(w);
1.1 nicm 162:
1.11 nicm 163: if ((w->flags & flags) != flags) {
1.6 nicm 164: w->flags |= flags;
165: log_debug("@%u alerts flags added %#x", w->id, flags);
1.11 nicm 166: }
1.6 nicm 167:
1.18 nicm 168: if (alerts_enabled(w, flags)) {
169: if (!w->alerts_queued) {
170: w->alerts_queued = 1;
171: TAILQ_INSERT_TAIL(&alerts_list, w, alerts_entry);
1.19 nicm 172: window_add_ref(w, __func__);
1.18 nicm 173: }
174:
175: if (!alerts_fired) {
176: log_debug("alerts check queued (by @%u)", w->id);
177: event_once(-1, EV_TIMEOUT, alerts_callback, NULL, NULL);
178: alerts_fired = 1;
179: }
1.1 nicm 180: }
181: }
182:
1.12 nicm 183: static int
1.14 nicm 184: alerts_check_bell(struct window *w)
1.1 nicm 185: {
1.14 nicm 186: struct winlink *wl;
187: struct session *s;
1.1 nicm 188:
1.14 nicm 189: if (~w->flags & WINDOW_BELL)
1.24 nicm 190: return (0);
191: if (!options_get_number(w->options, "monitor-bell"))
1.1 nicm 192: return (0);
193:
1.14 nicm 194: TAILQ_FOREACH(wl, &w->winlinks, wentry)
195: wl->session->flags &= ~SESSION_ALERTED;
1.1 nicm 196:
1.14 nicm 197: TAILQ_FOREACH(wl, &w->winlinks, wentry) {
1.26 nicm 198: /*
199: * Bells are allowed even if there is an existing bell (so do
200: * not check WINLINK_BELL).
201: */
1.14 nicm 202: s = wl->session;
1.25 nicm 203: if (s->curw != wl)
1.14 nicm 204: wl->flags |= WINLINK_BELL;
1.25 nicm 205: if (!alerts_action_applies(wl, "bell-action"))
206: continue;
207: notify_winlink("alert-bell", wl);
1.14 nicm 208:
209: if (s->flags & SESSION_ALERTED)
1.1 nicm 210: continue;
1.14 nicm 211: s->flags |= SESSION_ALERTED;
212:
1.25 nicm 213: alerts_set_message(wl, "Bell", "visual-bell");
1.1 nicm 214: }
215:
216: return (WINDOW_BELL);
217: }
218:
1.12 nicm 219: static int
1.14 nicm 220: alerts_check_activity(struct window *w)
1.1 nicm 221: {
1.14 nicm 222: struct winlink *wl;
223: struct session *s;
1.1 nicm 224:
1.14 nicm 225: if (~w->flags & WINDOW_ACTIVITY)
1.1 nicm 226: return (0);
1.4 nicm 227: if (!options_get_number(w->options, "monitor-activity"))
1.1 nicm 228: return (0);
229:
1.14 nicm 230: TAILQ_FOREACH(wl, &w->winlinks, wentry)
231: wl->session->flags &= ~SESSION_ALERTED;
1.1 nicm 232:
1.14 nicm 233: TAILQ_FOREACH(wl, &w->winlinks, wentry) {
234: if (wl->flags & WINLINK_ACTIVITY)
235: continue;
236: s = wl->session;
1.25 nicm 237: if (s->curw != wl)
1.21 nicm 238: wl->flags |= WINLINK_ACTIVITY;
1.25 nicm 239: if (!alerts_action_applies(wl, "activity-action"))
240: continue;
241: notify_winlink("alert-activity", wl);
1.14 nicm 242:
243: if (s->flags & SESSION_ALERTED)
244: continue;
245: s->flags |= SESSION_ALERTED;
246:
1.25 nicm 247: alerts_set_message(wl, "Activity", "visual-activity");
1.1 nicm 248: }
249:
250: return (WINDOW_ACTIVITY);
251: }
252:
1.12 nicm 253: static int
1.14 nicm 254: alerts_check_silence(struct window *w)
1.1 nicm 255: {
1.14 nicm 256: struct winlink *wl;
257: struct session *s;
1.1 nicm 258:
1.14 nicm 259: if (~w->flags & WINDOW_SILENCE)
1.1 nicm 260: return (0);
1.21 nicm 261: if (options_get_number(w->options, "monitor-silence") == 0)
1.1 nicm 262: return (0);
263:
1.14 nicm 264: TAILQ_FOREACH(wl, &w->winlinks, wentry)
265: wl->session->flags &= ~SESSION_ALERTED;
266:
267: TAILQ_FOREACH(wl, &w->winlinks, wentry) {
268: if (wl->flags & WINLINK_SILENCE)
269: continue;
270: s = wl->session;
1.25 nicm 271: if (s->curw != wl)
1.21 nicm 272: wl->flags |= WINLINK_SILENCE;
1.25 nicm 273: if (!alerts_action_applies(wl, "silence-action"))
274: continue;
275: notify_winlink("alert-silence", wl);
1.14 nicm 276:
277: if (s->flags & SESSION_ALERTED)
278: continue;
279: s->flags |= SESSION_ALERTED;
1.1 nicm 280:
1.25 nicm 281: alerts_set_message(wl, "Silence", "visual-silence");
1.1 nicm 282: }
283:
284: return (WINDOW_SILENCE);
1.14 nicm 285: }
286:
287: static void
1.25 nicm 288: alerts_set_message(struct winlink *wl, const char *type, const char *option)
1.14 nicm 289: {
290: struct client *c;
1.25 nicm 291: int visual;
1.14 nicm 292:
1.21 nicm 293: /*
1.23 nicm 294: * We have found an alert (bell, activity or silence), so we need to
295: * pass it on to the user. For each client attached to this session,
1.25 nicm 296: * decide whether a bell, message or both is needed.
1.21 nicm 297: *
298: * If visual-{bell,activity,silence} is on, then a message is
299: * substituted for a bell; if it is off, a bell is sent as normal; both
1.25 nicm 300: * mean both a bell and message is sent.
1.21 nicm 301: */
1.14 nicm 302:
1.25 nicm 303: visual = options_get_number(wl->session->options, option);
1.14 nicm 304: TAILQ_FOREACH(c, &clients, entry) {
1.25 nicm 305: if (c->session != wl->session || c->flags & CLIENT_CONTROL)
1.21 nicm 306: continue;
1.1 nicm 307:
1.21 nicm 308: if (visual == VISUAL_OFF || visual == VISUAL_BOTH)
1.2 nicm 309: tty_putcode(&c->tty, TTYC_BEL);
1.21 nicm 310: if (visual == VISUAL_OFF)
311: continue;
1.25 nicm 312: if (c->session->curw == wl)
1.21 nicm 313: status_message_set(c, "%s in current window", type);
314: else
315: status_message_set(c, "%s in window %d", type, wl->idx);
1.1 nicm 316: }
317: }
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