1 /* $Cambridge: exim/src/exim_monitor/em_main.c,v 1.6 2009/11/16 19:50:36 nm4 Exp $ */
3 /*************************************************
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2009 */
8 /* See the file NOTICE for conditions of use and distribution. */
13 /* This module contains the main program of the Exim monitor, which
14 sets up the world and then lets the XtAppMainLoop function
15 run things off X events. */
18 /*************************************************
20 *************************************************/
22 /* Fallback resources */
24 static String fallback_resources[] = {"eximon.geometry: +150+0", NULL};
26 /* X11 fixed argument lists */
28 static Arg quit_args[] = {
29 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
30 {XtNlabel, (XtArgVal) " Quit "},
31 {"left", XawChainLeft},
32 {"right", XawChainLeft},
34 {"bottom", XawChainTop}
37 static Arg resize_args[] = {
38 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
39 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
40 {XtNlabel, (XtArgVal) " Size "},
41 {"left", XawChainLeft},
42 {"right", XawChainLeft},
44 {"bottom", XawChainTop}
47 static Arg update_args[] = {
48 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
49 {XtNlabel, (XtArgVal) " Update "},
50 {"left", XawChainLeft},
51 {"right", XawChainLeft},
53 {"bottom", XawChainTop}
56 static Arg hide_args[] = {
57 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
58 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
59 {XtNlabel, (XtArgVal) " Hide "},
60 {"left", XawChainLeft},
61 {"right", XawChainLeft},
63 {"bottom", XawChainTop}
66 static Arg unhide_args[] = {
67 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
68 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
69 {XtNlabel, (XtArgVal) " Unhide "},
70 {"left", XawChainLeft},
71 {"right", XawChainLeft},
73 {"bottom", XawChainTop}
76 static Arg log_args[] = {
77 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
78 {"editType", XawtextEdit},
79 {"useStringInPlace", (XtArgVal)TRUE},
80 {"string", (XtArgVal)""}, /* dummy to get it going */
81 {"scrollVertical", XawtextScrollAlways},
82 {"scrollHorizontal", XawtextScrollAlways},
83 {"right", XawChainRight},
85 {"bottom", XawChainTop}
88 static Arg queue_args[] = {
89 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
90 {"editType", XawtextEdit},
91 {"string", (XtArgVal)""}, /* dummy to get it going */
92 {"scrollVertical", XawtextScrollAlways},
93 {"right", XawChainRight},
95 {"bottom", XawChainBottom}
98 static Arg sizepos_args[] = {
99 {"width", (XtArgVal)NULL},
100 {"height", (XtArgVal)NULL},
101 {"x", (XtArgVal)NULL},
102 {"y", (XtArgVal)NULL}
105 XtActionsRec menu_action_table[] = {
106 { "menu-create", menu_create } };
108 /* Types of non-message dialog action */
112 /* Miscellaneous local variables */
114 static int dialog_action;
115 static int tick_stripchart_accumulator = 999999;
116 static int tick_interval = 2;
117 static int maxposset = 0;
118 static int minposset = 0;
119 static int x_adjustment = -1;
120 static int y_adjustment = -1;
121 static Dimension screenwidth, screenheight;
122 static Dimension original_x, original_y;
123 static Dimension maxposx, maxposy;
124 static Dimension minposx, minposy;
125 static Dimension maxwidth, maxheight;
126 static Widget outer_form_widget;
127 static Widget hide_widget;
128 static Widget above_queue_widget;
133 #ifdef STRERROR_FROM_ERRLIST
134 /*************************************************
135 * Provide strerror() for non-ANSI libraries *
136 *************************************************/
138 /* Some old-fashioned systems still around (e.g. SunOS4) don't have strerror()
139 in their libraries, but can provide the same facility by this simple
140 alternative function. */
145 if (n < 0 || n >= sys_nerr) return "unknown error number";
146 return sys_errlist[n];
148 #endif /* STRERROR_FROM_ERRLIST */
152 /*************************************************
153 * Handle attempts to write the log *
154 *************************************************/
156 /* The message gets written to stderr when log_write() is called from a
157 utility. The message always gets '\n' added on the end of it. These calls come
158 from modules such as store.c when things go drastically wrong (e.g. malloc()
159 failing). In normal use they won't get obeyed.
162 selector not relevant when running a utility
163 flags not relevant when running a utility
164 format a printf() format
165 ... arguments for format
171 log_write(unsigned int selector, int flags, char *format, ...)
174 va_start(ap, format);
175 vfprintf(stderr, format, ap);
176 fprintf(stderr, "\n");
178 selector = selector; /* Keep picky compilers happy */
185 /*************************************************
186 * Extract port from address string *
187 *************************************************/
189 /* In the spool file, a host plus port is given as an IP address followed by a
190 dot and a port number. This function decodes this. It is needed by the
191 spool-reading function, and copied here to avoid having to include the whole
192 host.c module. One day the interaction between exim and eximon with regard to
193 included code MUST be tidied up!
196 address points to the string; if there is a port, the '.' in the string
197 is overwritten with zero to terminate the address
199 Returns: 0 if there is no port, else the port number.
203 host_address_extract_port(uschar *address)
205 int skip = -3; /* Skip 3 dots in IPv4 addresses */
207 while (*(++address) != 0)
210 if (ch == ':') skip = 0; /* Skip 0 dots in IPv6 addresses */
211 else if (ch == '.' && skip++ >= 0) break;
213 if (*address == 0) return 0;
215 return Uatoi(address);
221 /*************************************************
223 *************************************************/
225 /* Operations on messages are done in subprocesses; this handler
226 just catches them when they finish. It causes a queue display update
227 unless configured not to. */
229 static void sigchld_handler(int sig)
231 while (waitpid(-1, NULL, WNOHANG) > 0);
232 signal(sig, sigchld_handler);
233 if (action_queue_update) tick_queue_accumulator = 999999;
238 /*************************************************
239 * Callback routines *
240 *************************************************/
243 void updateAction(Widget w, XtPointer client_data, XtPointer call_data)
245 w = w; /* Keep picky compilers happy */
246 client_data = client_data;
247 call_data = call_data;
248 scan_spool_input(TRUE);
250 tick_queue_accumulator = 0;
253 void hideAction(Widget w, XtPointer client_data, XtPointer call_data)
255 w = w; /* Keep picky compilers happy */
256 client_data = client_data;
257 call_data = call_data;
258 actioned_message[0] = 0;
259 dialog_ref_widget = w;
260 dialog_action = da_hide;
261 create_dialog(US"Hide addresses ending with", US"");
264 void unhideAction(Widget w, XtPointer client_data, XtPointer call_data)
266 skip_item *sk = queue_skip;
268 w = w; /* Keep picky compilers happy */
269 client_data = client_data;
270 call_data = call_data;
274 skip_item *next = sk->next;
280 XtDestroyWidget(unhide_widget);
281 unhide_widget = NULL;
283 scan_spool_input(TRUE);
285 tick_queue_accumulator = 0;
288 void quitAction(Widget w, XtPointer client_data, XtPointer call_data)
290 w = w; /* Keep picky compilers happy */
291 client_data = client_data;
292 call_data = call_data;
297 /* Action when the "Size" button is pressed. This is a kludged up mess
298 that I made work after much messing around. Reading the position of the
299 toplevel widget gets the absolute position of the data portion of the window,
300 excluding the window manager's furniture. However, positioning the toplevel
301 widget's window seems to position the top corner of the furniture under the twm
302 window manager, but not under fwvm and others. The two cases are distinguished
303 by the values of x_adjustment and y_adjustment.
305 For twm (adjustment >= 0), one has to fudge the miminizing function to ensure
306 that we go back to exactly the same position as before.
308 For fwvm (adjustment < 0), one has to fudge the "top left hand corner"
309 positioning to ensure that the window manager's furniture gets displayed on the
310 screen. I haven't found a way of discovering the thickness of the furniture, so
311 some screwed-in values are used.
313 This is all ad hoc, developed by floundering around as I haven't found any
314 documentation that tells me what I really should do. */
316 void resizeAction(Widget button, XtPointer client_data, XtPointer call_data)
319 Dimension width, height;
321 Window w = XtWindow(toplevel_widget);
323 button = button; /* Keep picky compilers happy */
324 client_data = client_data;
325 call_data = call_data;
327 /* Get the position and size of the top level widget. */
329 sizepos_args[0].value = (XtArgVal)(&width);
330 sizepos_args[1].value = (XtArgVal)(&height);
331 sizepos_args[2].value = (XtArgVal)(&x);
332 sizepos_args[3].value = (XtArgVal)(&y);
333 XtGetValues(toplevel_widget, sizepos_args, 4);
335 /* Get the position of the widget's window relative to its parent; this
336 gives the thickness of the window manager's furniture. At least it does
337 in twm. For fwvm it gives zero. The size/movement function uses this data.
338 I tried doing this before entering the main loop, but it didn't always
339 work properly with twm. Running it every time seems to be OK. */
341 XGetWindowAttributes(X_display, XtWindow(toplevel_widget), &a);
342 if (a.x != 0) x_adjustment = a.x;
343 if (a.y != 0) y_adjustment = a.y;
345 /* If at maximum size, reduce to minimum and move back to where it was
346 when maximized, if that value is set, allowing for the furniture in cases
347 where the positioning includes the furniture. */
349 if (width == maxwidth && height == maxheight)
356 xs_SetValues(toplevel_widget, 4,
358 "height", min_height,
359 "x", minposx - ((x_adjustment >= 0)? x_adjustment : 0),
360 "y", minposy - ((y_adjustment >= 0)? y_adjustment : 0));
362 xs_SetValues(toplevel_widget, 2,
364 "height", min_height);
367 /* Else always expand to maximum. If currently at minimum size, remember where
368 it was for coming back. If we don't have a value for the thickness of the
369 furniture, the implication is that the coordinates position the application
370 window, so we can't use (0,0) because that loses the furniture. Use screwed in
371 values that seem to work with fvwm. */
378 if (width == min_width && height == min_height)
385 if ((int)(x + maxwidth) > (int)screenwidth ||
386 (int)(y + maxheight + 10) > (int)screenheight)
390 xx = maxposx - ((x_adjustment >= 0)? x_adjustment : 0);
391 yy = maxposy - ((y_adjustment >= 0)? y_adjustment : 0);
395 if ((int)(x + maxwidth) > (int)screenwidth)
396 xx = (x_adjustment >= 0)? 0 : 4;
397 if ((int)(y + maxheight + 10) > (int)screenheight)
398 yy = (y_adjustment >= 0)? 0 : 21;
401 xs_SetValues(toplevel_widget, 4,
408 else xs_SetValues(toplevel_widget, 2,
410 "height", maxheight);
413 /* Ensure the window is at the top */
415 XRaiseWindow(X_display, w);
421 /*************************************************
422 * Handle input from non-msg dialogue *
423 *************************************************/
425 /* The various cases here are: hide domain, (no more yet) */
427 void NonMessageDialogue(uschar *s)
431 switch(dialog_action)
435 /* Create the unhide button if not present */
437 if (unhide_widget == NULL)
439 unhide_args[0].value = (XtArgVal) above_queue_widget;
440 unhide_args[1].value = (XtArgVal) hide_widget;
441 unhide_widget = XtCreateManagedWidget("unhide", commandWidgetClass,
442 outer_form_widget, unhide_args, XtNumber(unhide_args));
443 XtAddCallback(unhide_widget, "callback", unhideAction, NULL);
446 /* Add item to skip queue */
448 sk = (skip_item *)store_malloc(sizeof(skip_item) + Ustrlen(s));
449 sk->next = queue_skip;
451 Ustrcpy(sk->text, s);
452 sk->reveal = time(NULL) + 60 * 60;
453 scan_spool_input(TRUE);
455 tick_queue_accumulator = 0;
462 /*************************************************
464 *************************************************/
466 /* This function is called initially to set up the starting data
467 values; it then sets a timeout so that it continues to be called
470 static void ticker(XtPointer pt, XtIntervalId *i)
472 pipe_item **pp = &pipe_chain;
473 pipe_item *p = pipe_chain;
474 tick_queue_accumulator += tick_interval;
475 tick_stripchart_accumulator += tick_interval;
478 pt = pt; /* Keep picky compilers happy */
481 /* If we have passed the queue update time, we must do a full
482 scan of the queue, checking for new arrivals, etc. This will
483 as a by-product set the count of items for use by the stripchart
484 display. On some systems, SIGCHLD signals can get lost at busy times,
485 so just in case, clean up any completed children here. */
487 if (tick_queue_accumulator >= queue_update)
489 scan_spool_input(TRUE);
491 tick_queue_accumulator = 0;
492 if (tick_stripchart_accumulator >= stripchart_update)
493 tick_stripchart_accumulator = 0;
494 while (waitpid(-1, NULL, WNOHANG) > 0);
497 /* Otherwise, if we have exceeded the stripchart interval,
498 do a reduced queue scan that simply provides the count for
501 else if (tick_stripchart_accumulator >= stripchart_update)
503 scan_spool_input(FALSE);
504 tick_stripchart_accumulator = 0;
507 /* Scan any pipes that are set up for listening to delivery processes,
508 and display their output if their windows are still open. */
515 while ((count = read(p->fd, buffer, 254)) > 0)
518 if (p->widget != NULL) text_show(p->widget, buffer);
526 /* If configured, cause display update */
527 if (action_queue_update) tick_queue_accumulator = 999999;
530 else pp = &(p->next);
535 /* Reset the timer for next time */
537 XtAppAddTimeOut(X_appcon, tick_interval * 1000, ticker, 0);
542 /*************************************************
543 * Find Num Lock modifiers *
544 *************************************************/
546 /* Return a string with the modifiers generated by XK_Num_Lock, or return
547 NULL if XK_Num_Lock doesn't generate any modifiers. This is needed because Num
548 Lock isn't always the same modifier on all servers.
552 buf a buffer in which to put the answers (long enough to hold 5)
554 Returns: points to the buffer, or NULL
558 numlock_modifiers(Display *display, uschar *buf)
564 m = XGetModifierMapping(display);
567 printf("Not enough memory\n");
571 /* Look at Mod1 through Mod5, and fill in the buffer as necessary. */
574 for (i = 3; i < 8; i++)
576 for (j = 0; j < m->max_keypermod; j++)
578 if (XKeycodeToKeysym(display, m->modifiermap [i*m->max_keypermod + j], 0)
581 sprintf(CS(buf+Ustrlen(buf)), " Mod%d", i-2);
593 /*************************************************
595 *************************************************/
597 int main(int argc, char **argv)
600 struct stat statdata;
601 uschar modbuf[] = " Mod1 Mod2 Mod3 Mod4 Mod5";
603 Widget stripchart_form_widget,
608 /* The exim global message_id needs to get set */
610 message_id_external = message_id_option + 1;
611 message_id = message_id_external + 1;
612 message_subdir[1] = 0;
614 /* Some store needs getting for big_buffer, which is used for
615 constructing file names and things. This call will initialize
616 the store_get() function. */
618 big_buffer_size = 1024;
619 big_buffer = store_get(big_buffer_size);
621 /* Set up the version string and date and output them */
624 printf("\nExim Monitor version %s (compiled %s) initializing\n",
625 version_string, version_date);
627 /* Initialize various things from the environment and arguments. */
629 init(argc, USS argv);
631 /* Set up the SIGCHLD handler */
633 signal(SIGCHLD, sigchld_handler);
635 /* Get the buffer for storing the string for the log display. */
637 log_display_buffer = (uschar *)store_malloc(log_buffer_size);
638 log_display_buffer[0] = 0;
640 /* Initialize the data structures for the stripcharts */
644 /* If log_file contains the empty string, then Exim is running using syslog
645 only, and we can't tail the log. If not, open the log file and position to the
646 end of it. Before doing so, we have to detect whether the log files are
647 datestamped, and if so, sort out the name. The string in log_file already has
648 %s replaced by "main"; if datestamping is occurring, %D will be present. In
649 fact, we don't need to test explicitly - just process the string with
652 Once opened, save the file's inode so that we can detect when the file is
653 switched to another one for non-datestamped files. However, allow the monitor
654 to start up without a log file (can happen if no messages have been sent
657 if (log_file[0] != 0)
659 (void)string_format(log_file_open, sizeof(log_file_open), CS log_file);
660 log_datestamping = string_datestamp_offset >= 0;
662 LOG = fopen(CS log_file_open, "r");
666 printf("*** eximon warning: can't open log file %s - will try "
667 "periodically\n", log_file_open);
671 fseek(LOG, 0, SEEK_END);
672 log_position = ftell(LOG);
673 fstat(fileno(LOG), &statdata);
674 log_inode = statdata.st_ino;
679 printf("*** eximon warning: no log file available to tail\n");
682 /* Now initialize the X world and create the top-level widget */
684 toplevel_widget = XtAppInitialize(&X_appcon, "Eximon", NULL, 0, &argc, argv,
685 fallback_resources, NULL, 0);
686 X_display = XtDisplay(toplevel_widget);
687 xs_SetValues(toplevel_widget, 4,
688 "title", window_title,
689 "iconName", window_title,
690 "minWidth", min_width,
691 "minHeight", min_height);
694 /* Create the action for setting up the menu in the queue display
695 window, and register the action for positioning the menu. */
697 XtAppAddActions(X_appcon, menu_action_table, 1);
698 XawSimpleMenuAddGlobalActions(X_appcon);
700 /* Set up translation tables for the text widgets we use. We don't
701 want all the generality of editing, etc. that the defaults provide.
702 This cannot be done before initializing X - the parser complains
703 about unknown events, modifiers, etc. in an unhelpful way... The
704 queue text widget has a different table which includes the button
705 for popping up the menu. Note that the order of things in these
706 tables is significant. Shift<thing> must come before <thing> as
707 otherwise it isn't noticed. */
710 <FocusIn>: display-caret(on)\n\
711 <FocusOut>: display-caret(off)\n\
714 /* The translation manager sets up passive grabs for the menu popups as a
715 result of MenuPopup(), but the grabs match only the exact modifiers listed,
716 hence combinations with and without caps-lock and num-lock must be given,
717 rather than just one "Shift<Btn1Down>" (or whatever menu_event is set to),
718 despite the fact that that notation (without a leading !) should ignore the
719 state of other modifiers. Thanks to Kevin Ryde for this information, and for
720 the function above that discovers which modifier is Num Lock, because it turns
721 out that it varies from server to server. */
723 sprintf(CS big_buffer,
724 "!%s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
725 !Lock %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
726 ", menu_event, menu_event);
728 numlock = numlock_modifiers(X_display, modbuf); /* Get Num Lock modifier(s) */
730 if (numlock != NULL) sprintf(CS big_buffer + Ustrlen(big_buffer),
731 "!%s %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
732 !Lock %s %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
733 ", numlock, menu_event, numlock, menu_event);
735 sprintf(CS big_buffer + Ustrlen(big_buffer),
736 "<Btn1Down>: select-start()\n\
737 <Btn1Motion>: extend-adjust()\n\
738 <Btn1Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
739 <Btn3Down>: extend-start()\n\
740 <Btn3Motion>: extend-adjust()\n\
741 <Btn3Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
742 <Key>Up: scroll-one-line-down()\n\
743 <Key>Down: scroll-one-line-up()\n\
744 Ctrl<Key>R: search(backward)\n\
745 Ctrl<Key>S: search(forward)\n\
748 queue_trans = XtParseTranslationTable(CS big_buffer);
750 text_trans = XtParseTranslationTable(
751 "<Btn1Down>: select-start()\n\
752 <Btn1Motion>: extend-adjust()\n\
753 <Btn1Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
754 <Btn3Down>: extend-start()\n\
755 <Btn3Motion>: extend-adjust()\n\
756 <Btn3Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
757 <Key>Up: scroll-one-line-down()\n\
758 <Key>Down: scroll-one-line-up()\n\
759 Ctrl<Key>R: search(backward)\n\
760 Ctrl<Key>S: search(forward)\n\
764 /* Create a toplevel form widget to hold all the other things */
766 outer_form_widget = XtCreateManagedWidget("form", formWidgetClass,
767 toplevel_widget, NULL, 0);
769 /* Now create an inner form to hold the stripcharts */
771 stripchart_form_widget = XtCreateManagedWidget("form", formWidgetClass,
772 outer_form_widget, NULL, 0);
773 xs_SetValues(stripchart_form_widget, 5,
774 "defaultDistance", 8,
775 "left", XawChainLeft,
776 "right", XawChainLeft,
778 "bottom", XawChainTop);
780 /* Create the queue count stripchart and its label. */
782 create_stripchart(stripchart_form_widget, queue_stripchart_name);
784 /* If configured, create the size monitoring stripchart, but
785 only if the OS supports statfs(). */
787 if (size_stripchart != NULL)
790 if (size_stripchart_name == NULL)
792 size_stripchart_name = size_stripchart + Ustrlen(size_stripchart) - 1;
793 while (size_stripchart_name > size_stripchart &&
794 *size_stripchart_name == '/') size_stripchart_name--;
795 while (size_stripchart_name > size_stripchart &&
796 *size_stripchart_name != '/') size_stripchart_name--;
798 create_stripchart(stripchart_form_widget, size_stripchart_name);
800 printf("Can't create size stripchart: statfs() function not available\n");
804 /* Now create the configured input/output stripcharts; note
805 the total number includes the queue stripchart. */
807 for (i = stripchart_varstart; i < stripchart_number; i++)
808 create_stripchart(stripchart_form_widget, stripchart_title[i]);
810 /* Next in vertical order come the Resize & Quit buttons */
812 quit_args[0].value = (XtArgVal) stripchart_form_widget;
813 quit_widget = XtCreateManagedWidget("quit", commandWidgetClass,
814 outer_form_widget, quit_args, XtNumber(quit_args));
815 XtAddCallback(quit_widget, "callback", quitAction, NULL);
817 resize_args[0].value = (XtArgVal) stripchart_form_widget;
818 resize_args[1].value = (XtArgVal) quit_widget;
819 resize_widget = XtCreateManagedWidget("resize", commandWidgetClass,
820 outer_form_widget, resize_args, XtNumber(resize_args));
821 XtAddCallback(resize_widget, "callback", resizeAction, NULL);
823 /* In the absence of log tailing, the quit widget is the one above the
826 above_queue_widget = quit_widget;
828 /* Create an Ascii text widget for the log tail display if we are tailing a
829 log. Skip it if not. */
831 if (log_file[0] != 0)
833 log_args[0].value = (XtArgVal) quit_widget;
834 log_widget = XtCreateManagedWidget("log", asciiTextWidgetClass,
835 outer_form_widget, log_args, XtNumber(log_args));
836 XawTextDisplayCaret(log_widget, TRUE);
837 xs_SetValues(log_widget, 6,
838 "editType", XawtextEdit,
839 "translations", text_trans,
840 "string", log_display_buffer,
841 "length", log_buffer_size,
845 if (log_font != NULL)
847 XFontStruct *f = XLoadQueryFont(X_display, CS log_font);
848 if (f != NULL) xs_SetValues(log_widget, 1, "font", f);
851 above_queue_widget = log_widget;
854 /* The update button */
856 update_args[0].value = (XtArgVal) above_queue_widget;
857 update_widget = XtCreateManagedWidget("update", commandWidgetClass,
858 outer_form_widget, update_args, XtNumber(update_args));
859 XtAddCallback(update_widget, "callback", updateAction, NULL);
861 /* The hide button */
863 hide_args[0].value = (XtArgVal) above_queue_widget;
864 hide_args[1].value = (XtArgVal) update_widget;
865 hide_widget = XtCreateManagedWidget("hide", commandWidgetClass,
866 outer_form_widget, hide_args, XtNumber(hide_args));
867 XtAddCallback(hide_widget, "callback", hideAction, NULL);
869 /* Create an Ascii text widget for the queue display. */
871 queue_args[0].value = (XtArgVal) update_widget;
872 queue_widget = XtCreateManagedWidget("queue", asciiTextWidgetClass,
873 outer_form_widget, queue_args, XtNumber(queue_args));
874 XawTextDisplayCaret(queue_widget, TRUE);
876 xs_SetValues(queue_widget, 4,
877 "editType", XawtextEdit,
878 "height", queue_depth,
879 "width", queue_width,
880 "translations", queue_trans);
882 if (queue_font != NULL)
884 XFontStruct *f = XLoadQueryFont(X_display, CS queue_font);
885 if (f != NULL) xs_SetValues(queue_widget, 1, "font", f);
888 /* Call the ticker function to get the initial data set up. It
889 arranges to have itself recalled every 2 seconds. */
893 /* Everything is now set up; this flag is used by the regerror
894 function and also by the queue reader. */
896 eximon_initialized = TRUE;
897 printf("\nExim Monitor running\n");
899 /* Realize the toplevel and thereby get things displayed */
901 XtRealizeWidget(toplevel_widget);
903 /* Find out the size of the initial window, and set that as its
904 maximum. While we are at it, get the initial position. */
906 sizepos_args[0].value = (XtArgVal)(&maxwidth);
907 sizepos_args[1].value = (XtArgVal)(&maxheight);
908 sizepos_args[2].value = (XtArgVal)(&original_x);
909 sizepos_args[3].value = (XtArgVal)(&original_y);
910 XtGetValues(toplevel_widget, sizepos_args, 4);
912 xs_SetValues(toplevel_widget, 2,
913 "maxWidth", maxwidth,
914 "maxHeight", maxheight);
916 /* Set up the size of the screen */
918 screenwidth = XDisplayWidth(X_display, 0);
919 screenheight= XDisplayHeight(X_display,0);
921 /* Register the action table */
923 XtAppAddActions(X_appcon, actionTable, actionTableSize);
925 /* Reduce the window to the small size if this is wanted */
927 if (start_small) resizeAction(NULL, NULL, NULL);
929 /* Enter the application loop which handles things from here
930 onwards. The return statement is never obeyed, but is needed to
931 keep pedantic ANSI compilers happy. */
933 XtAppMainLoop(X_appcon);
938 /* End of em_main.c */