Mercurial > aewl
annotate main.c @ 103:130d49140341
and another fix...
| author | arg@10ksloc.org |
|---|---|
| date | Wed, 19 Jul 2006 13:30:18 +0200 |
| parents | a19556fe83b5 |
| children | 61490330e90a |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> | |
| 3 * See LICENSE file for license details. | |
| 4 */ | |
| 5 | |
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6 #include "dwm.h" |
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7 |
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8 #include <errno.h> |
| 0 | 9 #include <stdio.h> |
| 10 #include <stdlib.h> | |
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11 #include <string.h> |
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12 #include <unistd.h> |
| 0 | 13 #include <X11/cursorfont.h> |
| 14 #include <X11/Xatom.h> | |
| 15 #include <X11/Xproto.h> | |
| 16 | |
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17 |
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18 /* static */ |
| 0 | 19 |
| 75 | 20 static Bool otherwm; |
| 21 static int (*xerrorxlib)(Display *, XErrorEvent *); | |
| 0 | 22 |
| 23 static void | |
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24 cleanup() |
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25 { |
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26 while(sel) { |
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27 resize(sel, True, TopLeft); |
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28 unmanage(sel); |
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29 } |
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30 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); |
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31 } |
| 0 | 32 |
| 33 static void | |
| 75 | 34 scan() |
| 0 | 35 { |
| 36 unsigned int i, num; | |
| 37 Window *wins; | |
| 38 XWindowAttributes wa; | |
| 39 Window d1, d2; | |
| 40 | |
| 41 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { | |
| 42 for(i = 0; i < num; i++) { | |
| 43 if(!XGetWindowAttributes(dpy, wins[i], &wa)) | |
| 44 continue; | |
| 45 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) | |
| 46 continue; | |
| 47 if(wa.map_state == IsViewable) | |
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48 manage(wins[i], &wa); |
| 0 | 49 } |
| 50 } | |
| 51 if(wins) | |
| 52 XFree(wins); | |
| 53 } | |
| 54 | |
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55 static int |
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56 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop) |
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57 { |
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58 Atom real; |
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59 int format; |
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60 unsigned long res, extra; |
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61 int status; |
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62 |
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63 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format, |
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64 &res, &extra, prop); |
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65 |
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66 if(status != Success || *prop == 0) { |
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67 return 0; |
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68 } |
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69 if(res == 0) { |
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70 free((void *) *prop); |
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71 } |
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72 return res; |
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73 } |
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74 |
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75 /* |
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76 * Startup Error handler to check if another window manager |
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77 * is already running. |
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78 */ |
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79 static int |
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80 xerrorstart(Display *dsply, XErrorEvent *ee) |
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81 { |
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82 otherwm = True; |
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83 return -1; |
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84 } |
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85 |
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86 /* extern */ |
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87 |
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88 char stext[1024]; |
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89 int tsel = Tdev; /* default tag */ |
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90 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw; |
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91 Atom wmatom[WMLast], netatom[NetLast]; |
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92 Bool running = True; |
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93 Bool issel = True; |
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94 Client *clients = NULL; |
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95 Client *sel = NULL; |
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96 Cursor cursor[CurLast]; |
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97 Display *dpy; |
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98 DC dc = {0}; |
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99 Window root, barwin; |
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100 |
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101 int |
| 75 | 102 getproto(Window w) |
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103 { |
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104 unsigned char *protocols; |
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105 long res; |
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106 int protos = 0; |
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107 int i; |
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108 |
| 77 | 109 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols); |
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110 if(res <= 0) { |
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111 return protos; |
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112 } |
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113 for(i = 0; i < res; i++) { |
| 77 | 114 if(protocols[i] == wmatom[WMDelete]) |
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115 protos |= WM_PROTOCOL_DELWIN; |
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116 } |
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117 free((char *) protocols); |
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118 return protos; |
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119 } |
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120 |
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121 void |
| 74 | 122 sendevent(Window w, Atom a, long value) |
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123 { |
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124 XEvent e; |
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125 |
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126 e.type = ClientMessage; |
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127 e.xclient.window = w; |
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128 e.xclient.message_type = a; |
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129 e.xclient.format = 32; |
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130 e.xclient.data.l[0] = value; |
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131 e.xclient.data.l[1] = CurrentTime; |
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132 XSendEvent(dpy, w, False, NoEventMask, &e); |
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133 XSync(dpy, False); |
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134 } |
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135 |
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136 void |
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137 quit(Arg *arg) |
| 75 | 138 { |
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139 running = False; |
| 75 | 140 } |
| 141 | |
| 142 /* | |
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143 * There's no way to check accesses to destroyed windows, thus those cases are |
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144 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs |
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145 * default error handler, which calls exit(). |
| 0 | 146 */ |
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147 int |
| 75 | 148 xerror(Display *dpy, XErrorEvent *ee) |
| 0 | 149 { |
| 75 | 150 if(ee->error_code == BadWindow |
| 151 || (ee->request_code == X_SetInputFocus | |
| 152 && ee->error_code == BadMatch) | |
| 153 || (ee->request_code == X_PolyText8 | |
| 154 && ee->error_code == BadDrawable) | |
| 155 || (ee->request_code == X_PolyFillRectangle | |
| 156 && ee->error_code == BadDrawable) | |
| 157 || (ee->request_code == X_PolySegment | |
| 158 && ee->error_code == BadDrawable) | |
| 159 || (ee->request_code == X_ConfigureWindow | |
| 160 && ee->error_code == BadMatch) | |
| 161 || (ee->request_code == X_GrabKey | |
| 162 && ee->error_code == BadAccess)) | |
| 0 | 163 return 0; |
| 34 | 164 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", |
| 75 | 165 ee->request_code, ee->error_code); |
| 166 return xerrorxlib(dpy, ee); /* may call exit() */ | |
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167 } |
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168 |
| 0 | 169 int |
| 170 main(int argc, char *argv[]) | |
| 171 { | |
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172 int i, n; |
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173 fd_set rd; |
| 0 | 174 XSetWindowAttributes wa; |
| 175 unsigned int mask; | |
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176 Bool readstdin = True; |
| 0 | 177 Window w; |
| 5 | 178 XEvent ev; |
| 0 | 179 |
| 180 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) { | |
| 181 switch (argv[i][1]) { | |
| 182 default: | |
|
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183 eprint("usage: dwm [-v]\n"); |
| 0 | 184 break; |
|
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185 case 'v': |
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186 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout); |
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187 exit(EXIT_SUCCESS); |
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188 break; |
| 0 | 189 } |
| 190 } | |
| 191 | |
| 192 dpy = XOpenDisplay(0); | |
| 193 if(!dpy) | |
| 75 | 194 eprint("dwm: cannot connect X server\n"); |
| 0 | 195 |
| 196 screen = DefaultScreen(dpy); | |
| 197 root = RootWindow(dpy, screen); | |
| 198 | |
| 199 /* check if another WM is already running */ | |
| 75 | 200 otherwm = False; |
| 201 XSetErrorHandler(xerrorstart); | |
| 0 | 202 /* this causes an error if some other WM is running */ |
| 203 XSelectInput(dpy, root, SubstructureRedirectMask); | |
|
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204 XSync(dpy, False); |
| 0 | 205 |
| 75 | 206 if(otherwm) |
| 207 eprint("dwm: another window manager is already running\n"); | |
| 0 | 208 |
|
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209 XSetErrorHandler(NULL); |
| 75 | 210 xerrorxlib = XSetErrorHandler(xerror); |
| 0 | 211 |
| 212 /* init atoms */ | |
| 77 | 213 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); |
| 214 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); | |
| 215 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); | |
| 216 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); | |
| 217 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, | |
| 218 PropModeReplace, (unsigned char *) netatom, NetLast); | |
| 0 | 219 |
| 220 /* init cursors */ | |
| 221 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); | |
| 222 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); | |
| 223 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); | |
| 224 | |
| 73 | 225 grabkeys(); |
| 0 | 226 |
| 5 | 227 /* style */ |
| 74 | 228 dc.bg = getcolor(BGCOLOR); |
| 229 dc.fg = getcolor(FGCOLOR); | |
| 230 dc.border = getcolor(BORDERCOLOR); | |
| 231 setfont(FONT); | |
| 5 | 232 |
|
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233 sx = sy = 0; |
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234 sw = DisplayWidth(dpy, screen); |
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235 sh = DisplayHeight(dpy, screen); |
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236 mw = (sw * MASTERW) / 100; |
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237 |
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238 wa.override_redirect = 1; |
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239 wa.background_pixmap = ParentRelative; |
|
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240 wa.event_mask = ButtonPressMask | ExposureMask; |
| 5 | 241 |
|
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242 bx = by = 0; |
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243 bw = sw; |
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244 dc.h = bh = dc.font.height + 4; |
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245 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen), |
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246 CopyFromParent, DefaultVisual(dpy, screen), |
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247 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
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248 XDefineCursor(dpy, barwin, cursor[CurNormal]); |
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249 XMapRaised(dpy, barwin); |
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250 |
|
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251 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); |
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252 dc.gc = XCreateGC(dpy, root, 0, 0); |
| 74 | 253 drawstatus(); |
|
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254 |
|
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255 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); |
|
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256 |
|
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257 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \ |
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258 | LeaveWindowMask; |
| 0 | 259 wa.cursor = cursor[CurNormal]; |
|
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260 |
| 0 | 261 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); |
| 262 | |
|
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263 strcpy(stext, "dwm-"VERSION); |
|
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264 |
| 75 | 265 scan(); |
|
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266 |
|
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267 /* main event loop, reads status text from stdin as well */ |
| 61 | 268 Mainloop: |
| 5 | 269 while(running) { |
|
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270 FD_ZERO(&rd); |
|
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271 if(readstdin) |
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272 FD_SET(STDIN_FILENO, &rd); |
|
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273 FD_SET(ConnectionNumber(dpy), &rd); |
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274 |
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275 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0); |
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276 if(i == -1 && errno == EINTR) |
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277 continue; |
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278 if(i < 0) |
| 75 | 279 eprint("select failed\n"); |
|
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280 else if(i > 0) { |
| 64 | 281 if(FD_ISSET(ConnectionNumber(dpy), &rd)) { |
| 282 while(XPending(dpy)) { | |
| 283 XNextEvent(dpy, &ev); | |
| 284 if(handler[ev.type]) | |
| 285 (handler[ev.type])(&ev); /* call handler */ | |
| 286 } | |
|
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287 } |
|
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288 if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) { |
|
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289 i = n = 0; |
|
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290 for(;;) { |
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291 if((i = getchar()) == EOF) { |
|
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292 /* broken pipe/end of producer */ |
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293 readstdin = False; |
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294 strcpy(stext, "broken pipe"); |
|
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295 goto Mainloop; |
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296 } |
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297 if(i == '\n' || n >= sizeof(stext) - 1) |
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298 break; |
|
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299 stext[n++] = i; |
|
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300 } |
|
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301 stext[n] = 0; |
| 74 | 302 drawstatus(); |
|
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303 } |
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304 } |
| 5 | 305 } |
| 0 | 306 |
| 307 cleanup(); | |
| 308 XCloseDisplay(dpy); | |
| 309 | |
| 310 return 0; | |
| 311 } |