/* Copyright (c) 1989 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. */ /* * Copyright (c) 2000, 2023, Oracle and/or its affiliates. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ /* * xload - display system load average in a window */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include "xload.h" #ifdef USE_GETTEXT # include # include #else # define gettext(a) (a) #endif #include "xload.bit" static char *ProgramName; static void quit(Widget w, XEvent *event, String *params, Cardinal *num_params); static void ClearLights(Display *dpy); static void SetLights(XtPointer data, XtIntervalId *timer); /* * Command line options table. Only resources are entered here...there is a * pass over the remaining options after XtParseCommand is let loose. */ static XrmOptionDescRec options[] = { {"-scale", "*load.minScale", XrmoptionSepArg, NULL}, {"-update", "*load.update", XrmoptionSepArg, NULL}, {"-hl", "*load.highlight", XrmoptionSepArg, NULL}, {"-highlight", "*load.highlight", XrmoptionSepArg, NULL}, {"-label", "*label.label", XrmoptionSepArg, NULL}, {"-nolabel", "*showLabel", XrmoptionNoArg, "False"}, {"-lights", "*useLights", XrmoptionNoArg, "True"}, {"-jumpscroll", "*load.jumpScroll", XrmoptionSepArg, NULL}, {"-remote", "*remote", XrmoptionSepArg, NULL}, }; /* * The structure containing the resource information for the * Xload application resources. */ #define Offset(field) (XtOffsetOf(XLoadResources, field)) static XtResource my_resources[] = { {"showLabel", XtCBoolean, XtRBoolean, sizeof(Boolean), Offset(show_label), XtRImmediate, (XtPointer) TRUE}, {"useLights", XtCBoolean, XtRBoolean, sizeof(Boolean), Offset(use_lights), XtRImmediate, (XtPointer) FALSE}, {"remote", XtCString, XtRString, sizeof(XtRString), Offset(remote), XtRImmediate, (XtPointer) FALSE}, }; #undef Offset XLoadResources resources; static XtActionsRec xload_actions[] = { { "quit", quit }, }; static Atom wm_delete_window; static int light_update = 10 * 1000; /* * Exit with message describing command line format. */ static void _X_NORETURN usage(int exitval) { fprintf (stderr, gettext("usage: %s [-options ...]\n\n%s\n"), ProgramName, gettext( "where options include:\n" " -display X server on which to display\n" " -geometry size and location of window\n" " -fn font to use in label\n" " -scale minimum number of scale lines\n" " -update interval between updates\n" " -label annotation text\n" " -bg background color\n" " -fg graph color\n" " -hl scale and text color\n" " -nolabel removes the label from above the chart.\n" " -jumpscroll number of pixels to scroll on overflow\n" " -lights use keyboard leds to display current load\n" " -help print this message\n" " -version print version info\n" )); exit(exitval); } int main(int argc, char **argv) { XtAppContext app_con; Widget toplevel, load, pane, label_wid, load_parent; Arg args[1]; Pixmap icon_pixmap = None; char *label, host[256]; const char *domaindir; XtSetLanguageProc ( NULL, NULL, NULL ); ProgramName = argv[0]; /* Handle args that don't require opening a display or load info source */ for (int n = 1; n < argc; n++) { const char *argn = argv[n]; /* accept single or double dash for -help & -version */ if (argn[0] == '-' && argn[1] == '-') { argn++; } if (strcmp(argn, "-help") == 0) { usage(0); } if (strcmp(argn, "-version") == 0) { puts(PACKAGE_STRING); exit(0); } } /* For security reasons, we reset our uid/gid after doing the necessary system initialization and before calling any X routines. */ InitLoadPoint(); #if !defined(_WIN32) || defined(__CYGWIN__) /* reset gid first while still (maybe) root */ if (setgid(getgid()) == -1) { fprintf(stderr, gettext("%s: setgid failed: %s\n"), ProgramName, strerror(errno)); exit(1); } if (setuid(getuid()) == -1) { fprintf(stderr, gettext("%s: setuid failed: %s\n"), ProgramName, strerror(errno)); exit(1); } #endif XtSetLanguageProc(NULL, (XtLanguageProc) NULL, NULL); toplevel = XtAppInitialize(&app_con, "XLoad", options, XtNumber(options), &argc, argv, NULL, NULL, (Cardinal) 0); #ifdef USE_GETTEXT textdomain("xload"); if ((domaindir = getenv ( "TEXTDOMAINDIR" )) == NULL) { domaindir = LOCALEDIR; } bindtextdomain("xload", domaindir); #endif if (argc != 1) { fputs(gettext("Unknown argument(s):"), stderr); for (int n = 1; n < argc; n++) { fprintf(stderr, " %s", argv[n]); } fputs("\n\n", stderr); usage(1); } XtGetApplicationResources( toplevel, (XtPointer) &resources, my_resources, XtNumber(my_resources), NULL, (Cardinal) 0); if (resources.use_lights) { char name[1024]; XrmString type; XrmValue db_value; XrmValue int_value; Bool found = False; snprintf (name, sizeof(name), "%s.paned.load.update", XtName(toplevel)); found = XrmGetResource (XtScreenDatabase(XtScreen(toplevel)), name, "XLoad.Paned.StripChart.Interval", &type, &db_value); if (found) { int_value.size = sizeof(int); int_value.addr = (XPointer) &light_update; found = XtConvertAndStore(toplevel, type, &db_value, XtRInt, &int_value); if (found) light_update *= 1000; } ClearLights (XtDisplay (toplevel)); SetLights ((XtPointer) toplevel, (XtIntervalId *) 0); } else { /* * This is a hack so that f.delete will do something useful in this * single-window application. */ XtAppAddActions (app_con, xload_actions, XtNumber(xload_actions)); XtOverrideTranslations(toplevel, XtParseTranslationTable ("WM_PROTOCOLS: quit()")); XtSetArg (args[0], XtNiconPixmap, &icon_pixmap); XtGetValues(toplevel, args, ONE); if (icon_pixmap == None) { XtSetArg(args[0], XtNiconPixmap, XCreateBitmapFromData(XtDisplay(toplevel), XtScreen(toplevel)->root, (char *)xload_bits, xload_width, xload_height)); XtSetValues (toplevel, args, ONE); } if (resources.show_label) { pane = XtCreateManagedWidget ("paned", panedWidgetClass, toplevel, NULL, ZERO); label_wid = XtCreateManagedWidget ("label", labelWidgetClass, pane, NULL, ZERO); XtSetArg (args[0], XtNlabel, &label); XtGetValues(label_wid, args, ONE); if ( strcmp("label", label) == 0 ) { (void) XmuGetHostname (host, 255); XtSetArg (args[0], XtNlabel, host); XtSetValues (label_wid, args, ONE); } load_parent = pane; } else load_parent = toplevel; load = XtCreateManagedWidget ("load", stripChartWidgetClass, load_parent, NULL, ZERO); if (resources.remote) XtAddCallback(load, XtNgetValue, GetRLoadPoint, NULL); else XtAddCallback(load, XtNgetValue, GetLoadPoint, NULL); XtRealizeWidget (toplevel); wm_delete_window = XInternAtom (XtDisplay(toplevel), "WM_DELETE_WINDOW", False); (void) XSetWMProtocols (XtDisplay(toplevel), XtWindow(toplevel), &wm_delete_window, 1); } XtAppMainLoop(app_con); return 0; } static unsigned long current_leds; static void ClearLights (Display *dpy) { XKeyboardControl cntrl = { .led_mode = LedModeOff }; XChangeKeyboardControl (dpy, KBLedMode, &cntrl); current_leds = 0; } static void SetLights (XtPointer data, XtIntervalId *timer) { Widget toplevel; Display *dpy; double value; unsigned long new_leds, change, bit; int i; toplevel = (Widget) data; dpy = XtDisplay (toplevel); if (resources.remote) GetRLoadPoint (toplevel, (XtPointer) 0, (XtPointer) &value); else GetLoadPoint (toplevel, (XtPointer) 0, (XtPointer) &value); new_leds = (1 << (int) (value + 0.1)) - 1; change = new_leds ^ current_leds; i = 1; bit = 1; while (current_leds != new_leds) { if (change & bit) { XKeyboardControl cntrl = { .led = i, .led_mode = new_leds & bit ? LedModeOn : LedModeOff }; XChangeKeyboardControl (dpy, KBLed|KBLedMode, &cntrl); current_leds ^= bit; } i++; bit <<= 1; } XtAppAddTimeOut(XtWidgetToApplicationContext(toplevel), light_update, SetLights, data); } static void quit (Widget w, XEvent *event, String *params, Cardinal *num_params) { if (event->type == ClientMessage && event->xclient.data.l[0] != wm_delete_window) { XBell (XtDisplay(w), 0); return; } if (resources.use_lights) ClearLights (XtDisplay (w)); XtDestroyApplicationContext(XtWidgetToApplicationContext(w)); exit (0); }