* This program accepts ClientMessages of type SCREENSAVER; these messages
* may contain the atom ACTIVATE or DEACTIVATE, meaning to turn the
* screensaver on or off now, regardless of the idleness of the user,
- * and a few other things. The included "xscreensaver_command" program
+ * and a few other things. The included "xscreensaver-command" program
* sends these messsages.
*
* If we don't have the XIdle, MIT-SCREEN-SAVER, or SGI SCREEN_SAVER
* KeyPress on windows which don't select them, because that would
* interfere with event propagation. This will break if any program
* changes its event mask to contain KeyRelease or PointerMotion more than
- * 30 seconds after creating the window, but that's probably pretty rare.
- *
+ * 30 seconds after creating the window, but such programs do not seem to
+ * occur in nature (I've never seen it happen in all these years.)
+ *
* The reason that we can't select KeyPresses on windows that don't have
* them already is that, when dispatching a KeyPress event, X finds the
* lowest (leafmost) window in the hierarchy on which *any* client selects
* to keep your emacs window alive even when xscreensaver has grabbed.
* - Go read the code related to `debug_p'.
* - You probably can't set breakpoints in functions that are called on
- * the other side of a call to fork() -- if your clients are dying
- * with signal 5, Trace/BPT Trap, you're losing in this way.
+ * the other side of a call to fork() -- if your subprocesses are
+ * dying with signal 5, Trace/BPT Trap, you're losing in this way.
* - If you aren't using a server extension, don't leave this stopped
* under the debugger for very long, or the X input buffer will get
* huge because of the keypress events it's selecting for. This can
* make your X server wedge with "no more input buffers."
- *
+ *
* ======================================================================== */
#ifdef HAVE_CONFIG_H
static Atom XA_SCREENSAVER_RESPONSE;
static Atom XA_ACTIVATE, XA_DEACTIVATE, XA_CYCLE, XA_NEXT, XA_PREV;
-static Atom XA_EXIT, XA_RESTART, XA_LOCK, XA_SELECT;
-Atom XA_DEMO, XA_PREFS;
+static Atom XA_RESTART, XA_SELECT;
+static Atom XA_THROTTLE, XA_UNTHROTTLE;
+Atom XA_DEMO, XA_PREFS, XA_EXIT, XA_LOCK, XA_BLANK;
\f
static XrmOptionDescRec options [] = {
"#######################################"
"#######################################\n\n");
fprintf (real_stderr,
- " If at all possible, please re-run xscreensaver with the command line\n"
- " arguments `-sync -verbose', and reproduce this bug. That will cause\n"
- " xscreensaver to dump a `core' file to the current directory. Please\n"
- " include the stack trace from that core file in your bug report.\n"
+ " If at all possible, please re-run xscreensaver with the command\ e\n"
+ " line arguments `-sync -verbose -no-capture', and reproduce this\n"
+ " bug. That will cause xscreensaver to dump a `core' file to the\n"
+ " current directory. Please include the stack trace from that core\n"
+ " file in your bug report. *DO NOT* mail the core file itself!\n"
+ " That won't work.\n"
"\n"
- " http://www.jwz.org/xscreensaver/bugs.html explains how to create the\n"
- " most useful bug reports, and how to examine core files.\n"
+ " http://www.jwz.org/xscreensaver/bugs.html explains how to create\n"
+ " the most useful bug reports, and how to examine core files.\n"
"\n"
- " The more information you can provide, the better. But please report\n"
+ " The more information you can provide, the better. But please\n"
" report this bug, regardless!\n"
"\n");
fprintf (real_stderr,
describe_uids (si, stderr);
fprintf (stderr, "\n"
- "%s: Errors at startup are usually authorization problems.\n"
- " Did you read the manual? Specifically, the parts\n"
- " that talk about XAUTH, XDM, and root logins?\n"
- "\n"
- " http://www.jwz.org/xscreensaver/man.html\n"
- "\n",
+ "%s: Errors at startup are usually authorization problems.\n"
+ " Did you read the manual and the FAQ? Specifically,\n"
+ " the parts of the manual that talk about XAUTH, XDM,\n"
+ " and root logins?\n"
+ "\n"
+ " http://www.jwz.org/xscreensaver/man.html\n"
+ "\n",
blurb());
fflush (stderr);
static void
privileged_initialization (saver_info *si, int *argc, char **argv)
{
+#ifndef NO_LOCKING
+ /* before hack_uid() for proper permissions */
+ lock_priv_init (*argc, argv, si->prefs.verbose_p);
+#endif /* NO_LOCKING */
+
+ hack_uid (si);
+}
+
+
+/* Figure out what locking mechanisms are supported.
+ */
+static void
+lock_initialization (saver_info *si, int *argc, char **argv)
+{
#ifdef NO_LOCKING
si->locking_disabled_p = True;
si->nolock_reason = "not compiled with locking support";
#else /* !NO_LOCKING */
- si->locking_disabled_p = False;
- /* before hack_uid() for proper permissions */
+
+ /* Finish initializing locking, now that we're out of privileged code. */
if (! lock_init (*argc, argv, si->prefs.verbose_p))
{
si->locking_disabled_p = True;
}
#endif /* NO_LOCKING */
-#ifndef NO_SETUID
hack_uid (si);
-#endif /* NO_SETUID */
}
XA_SCREENSAVER = XInternAtom (si->dpy, "SCREENSAVER", False);
XA_SCREENSAVER_VERSION = XInternAtom (si->dpy, "_SCREENSAVER_VERSION",False);
XA_SCREENSAVER_ID = XInternAtom (si->dpy, "_SCREENSAVER_ID", False);
- XA_SCREENSAVER_TIME = XInternAtom (si->dpy, "_SCREENSAVER_TIME", False);
+ XA_SCREENSAVER_STATUS = XInternAtom (si->dpy, "_SCREENSAVER_STATUS", False);
XA_SCREENSAVER_RESPONSE = XInternAtom (si->dpy, "_SCREENSAVER_RESPONSE",
False);
XA_XSETROOT_ID = XInternAtom (si->dpy, "_XSETROOT_ID", False);
XA_DEMO = XInternAtom (si->dpy, "DEMO", False);
XA_PREFS = XInternAtom (si->dpy, "PREFS", False);
XA_LOCK = XInternAtom (si->dpy, "LOCK", False);
+ XA_BLANK = XInternAtom (si->dpy, "BLANK", False);
+ XA_THROTTLE = XInternAtom (si->dpy, "THROTTLE", False);
+ XA_UNTHROTTLE = XInternAtom (si->dpy, "UNTHROTTLE", False);
return toplevel_shell;
}
}
}
- si->prefs.fading_possible_p = found_any_writable_cells;
+ si->fading_possible_p = found_any_writable_cells;
}
while (1)
{
+ Bool was_locked = False;
sleep_until_idle (si, True);
if (p->verbose_p)
fprintf (stderr,
"%s: unable to grab keyboard or mouse! Blanking aborted.\n",
- blurb(), timestring ());
+ blurb());
continue;
}
kill_screenhack (si);
- spawn_screenhack (si, True);
+
+ if (!si->throttled_p)
+ spawn_screenhack (si, True);
+ else if (p->verbose_p)
+ fprintf (stderr, "%s: not launching hack (throttled.)\n", blurb());
/* Don't start the cycle timer in demo mode. */
if (!si->demoing_p && p->cycle)
- si->cycle_id = XtAppAddTimeOut (si->app, p->cycle, cycle_timer,
+ si->cycle_id = XtAppAddTimeOut (si->app,
+ (si->selection_mode
+ /* see comment in cycle_timer() */
+ ? 1000 * 60 * 60
+ : p->cycle),
+ cycle_timer,
(XtPointer) si);
#ifndef NO_LOCKING
- if (!si->demoing_p && /* if not going into demo mode */
- p->lock_p && /* and locking is enabled */
- !si->locking_disabled_p && /* and locking is possible */
- p->lock_timeout == 0) /* and locking is not timer-deferred */
- si->locked_p = True; /* then lock right now. */
-
- /* locked_p might be true already because of the above, or because of
- the LOCK ClientMessage. But if not, and if we're supposed to lock
- after some time, set up a timer to do so.
- */
- if (p->lock_p &&
- !si->locked_p &&
- p->lock_timeout > 0)
- si->lock_id = XtAppAddTimeOut (si->app, p->lock_timeout,
- activate_lock_timer,
- (XtPointer) si);
+ {
+ Time lock_timeout = p->lock_timeout;
+
+ if (si->emergency_lock_p && p->lock_p && lock_timeout)
+ {
+ int secs = p->lock_timeout / 1000;
+ if (p->verbose_p)
+ fprintf (stderr,
+ "%s: locking now, instead of waiting for %d:%02d:%02d.\n",
+ blurb(),
+ (secs / (60 * 60)), ((secs / 60) % 60), (secs % 60));
+ lock_timeout = 0;
+ }
+
+ si->emergency_lock_p = False;
+
+ if (!si->demoing_p && /* if not going into demo mode */
+ p->lock_p && /* and locking is enabled */
+ !si->locking_disabled_p && /* and locking is possible */
+ lock_timeout == 0) /* and locking is not timer-deferred */
+ set_locked_p (si, True); /* then lock right now. */
+
+ /* locked_p might be true already because of the above, or because of
+ the LOCK ClientMessage. But if not, and if we're supposed to lock
+ after some time, set up a timer to do so.
+ */
+ if (p->lock_p &&
+ !si->locked_p &&
+ lock_timeout > 0)
+ si->lock_id = XtAppAddTimeOut (si->app, lock_timeout,
+ activate_lock_timer,
+ (XtPointer) si);
+ }
#endif /* !NO_LOCKING */
saver_screen_info *ssi = si->default_screen;
if (si->locking_disabled_p) abort ();
+ was_locked = True;
si->dbox_up_p = True;
suspend_screenhack (si, True);
XUndefineCursor (si->dpy, ssi->screensaver_window);
kill_screenhack (si);
unblank_screen (si);
- si->locked_p = False;
+ set_locked_p (si, False);
+ si->emergency_lock_p = False;
si->demoing_p = 0;
si->selection_mode = 0;
+ /* If we're throttled, and the user has explicitly unlocked the screen,
+ then unthrottle. If we weren't locked, then don't unthrottle
+ automatically, because someone might have just bumped the desk... */
+ if (was_locked)
+ {
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+ }
+
if (si->cycle_id)
{
XtRemoveTimeOut (si->cycle_id);
process_command_line (si, &argc, argv);
print_banner (si);
- initialize_per_screen_info (si, shell); /* also sets p->fading_possible_p */
+ load_init_file (p); /* must be before initialize_per_screen_info() */
+ initialize_per_screen_info (si, shell); /* also sets si->fading_possible_p */
+
+ /* We can only issue this warnings now. */
+ if (p->verbose_p && !si->fading_possible_p && (p->fade_p || p->unfade_p))
+ fprintf (stderr,
+ "%s: there are no PseudoColor or GrayScale visuals.\n"
+ "%s: ignoring the request for fading/unfading.\n",
+ blurb(), blurb());
for (i = 0; i < si->nscreens; i++)
if (ensure_no_screensaver_running (si->dpy, si->screens[i].screen))
exit (1);
- load_init_file (p);
+ lock_initialization (si, &argc, argv);
if (p->xsync_p) XSynchronize (si->dpy, True);
blurb_timestamp_p = p->timestamp_p; /* kludge */
if (p->verbose_p) analyze_display (si);
initialize_server_extensions (si);
+
+ si->blank_time = time ((time_t) 0); /* must be before ..._window */
initialize_screensaver_window (si);
+
select_events (si);
init_sigchld ();
disable_builtin_screensaver (si, True);
Bool
handle_clientmessage (saver_info *si, XEvent *event, Bool until_idle_p)
{
+ saver_preferences *p = &si->prefs;
Atom type = 0;
Window window = event->xclient.window;
"activating.");
si->selection_mode = 0;
si->demoing_p = False;
+
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
if (si->using_mit_saver_extension || si->using_sgi_saver_extension)
{
XForceScreenSaver (si->dpy, ScreenSaverActive);
{
if (! until_idle_p)
{
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
clientmessage_response(si, window, False,
"DEACTIVATE ClientMessage received.",
"deactivating.");
"cycling.");
si->selection_mode = 0; /* 0 means randomize when its time. */
si->demoing_p = False;
+
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
if (si->cycle_id)
XtRemoveTimeOut (si->cycle_id);
si->cycle_id = 0;
si->selection_mode = (type == XA_NEXT ? -1 : -2);
si->demoing_p = False;
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
if (! until_idle_p)
{
if (si->cycle_id)
si->selection_mode = which;
si->demoing_p = False;
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
if (! until_idle_p)
{
if (si->cycle_id)
XSync (si->dpy, False);
}
+ fflush (stdout);
+ fflush (stderr);
+ if (real_stdout) fflush (real_stdout);
+ if (real_stderr) fflush (real_stderr);
/* make sure error message shows up before exit. */
if (real_stderr && stderr != real_stderr)
dup2 (fileno(real_stderr), fileno(stderr));
si->selection_mode = which;
si->demoing_p = True;
+ if (si->throttled_p && p->verbose_p)
+ fprintf (stderr, "%s: unthrottled.\n", blurb());
+ si->throttled_p = False;
+
return True;
}
char *response = (until_idle_p
? "activating and locking."
: "locking.");
- si->locked_p = True;
- si->selection_mode = 0;
- si->demoing_p = False;
sprintf (buf, "LOCK ClientMessage received; %s", response);
clientmessage_response (si, window, False, buf, response);
+ set_locked_p (si, True);
+ si->selection_mode = 0;
+ si->demoing_p = False;
if (si->lock_id) /* we're doing it now, so lose the timeout */
{
}
#endif /* !NO_LOCKING */
}
+ else if (type == XA_THROTTLE)
+ {
+ if (si->throttled_p)
+ clientmessage_response (si, window, True,
+ "THROTTLE ClientMessage received, but "
+ "already throttled.",
+ "already throttled.");
+ else
+ {
+ char buf [255];
+ char *response = "throttled.";
+ si->throttled_p = True;
+ si->selection_mode = 0;
+ si->demoing_p = False;
+ sprintf (buf, "THROTTLE ClientMessage received; %s", response);
+ clientmessage_response (si, window, False, buf, response);
+
+ if (! until_idle_p)
+ {
+ if (si->cycle_id)
+ XtRemoveTimeOut (si->cycle_id);
+ si->cycle_id = 0;
+ cycle_timer ((XtPointer) si, 0);
+ }
+ }
+ }
+ else if (type == XA_UNTHROTTLE)
+ {
+ if (! si->throttled_p)
+ clientmessage_response (si, window, True,
+ "UNTHROTTLE ClientMessage received, but "
+ "not throttled.",
+ "not throttled.");
+ else
+ {
+ char buf [255];
+ char *response = "unthrottled.";
+ si->throttled_p = False;
+ si->selection_mode = 0;
+ si->demoing_p = False;
+ sprintf (buf, "UNTHROTTLE ClientMessage received; %s", response);
+ clientmessage_response (si, window, False, buf, response);
+
+ if (! until_idle_p)
+ {
+ if (si->cycle_id)
+ XtRemoveTimeOut (si->cycle_id);
+ si->cycle_id = 0;
+ cycle_timer ((XtPointer) si, 0);
+ }
+ }
+ }
else
{
char buf [1024];
{
int i, j;
static const char *exts[][2] = {
- { "SCREEN_SAVER", "SGI Screen-Saver" },
- { "SCREEN-SAVER", "SGI Screen-Saver" },
- { "MIT-SCREEN-SAVER", "MIT Screen-Saver" },
- { "XIDLE", "XIdle" },
- { "SGI-VIDEO-CONTROL", "SGI Video-Control" },
- { "READDISPLAY", "SGI Read-Display" },
- { "MIT-SHM", "Shared Memory" },
- { "DOUBLE-BUFFER", "Double-Buffering" },
- { "DPMS", "Power Management" },
- { "GLX", "GLX" }
+ { "SCREEN_SAVER", "SGI Screen-Saver" },
+ { "SCREEN-SAVER", "SGI Screen-Saver" },
+ { "MIT-SCREEN-SAVER", "MIT Screen-Saver" },
+ { "XIDLE", "XIdle" },
+ { "SGI-VIDEO-CONTROL", "SGI Video-Control" },
+ { "READDISPLAY", "SGI Read-Display" },
+ { "MIT-SHM", "Shared Memory" },
+ { "DOUBLE-BUFFER", "Double-Buffering" },
+ { "DPMS", "Power Management" },
+ { "GLX", "GLX" },
+ { "XFree86-VidModeExtension", "XF86 Video-Mode" },
+ { "XINERAMA", "Xinerama" }
};
fprintf (stderr, "%s: running on display \"%s\"\n", blurb(),
projects / xscreensaver / blobdiff