Mercurial > dwm-meillo
annotate main.c @ 76:4bd49f404f10
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| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Sat, 15 Jul 2006 17:00:56 +0200 |
| parents | f08271b7cb20 |
| children | 38c8f7f7d401 |
| 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 | |
| 17 Display *dpy; | |
| 5 | 18 Window root, barwin; |
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19 Atom wm_atom[WMLast], net_atom[NetLast]; |
| 0 | 20 Cursor cursor[CurLast]; |
| 5 | 21 Bool running = True; |
| 31 | 22 Bool issel; |
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23 |
| 31 | 24 int tsel = Tdev; /* default tag */ |
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25 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw; |
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26 char stext[1024]; |
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27 |
| 34 | 28 DC dc = {0}; |
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29 Client *clients = NULL; |
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30 Client *sel = NULL; |
| 0 | 31 |
| 75 | 32 static Bool otherwm; |
| 31 | 33 static const char version[] = |
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34 "dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n"; |
| 75 | 35 static int (*xerrorxlib)(Display *, XErrorEvent *); |
| 0 | 36 |
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37 /* static functions */ |
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38 |
| 0 | 39 static void |
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40 cleanup() |
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41 { |
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42 while(sel) { |
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43 resize(sel, True); |
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44 unmanage(sel); |
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45 } |
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46 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); |
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47 } |
| 0 | 48 |
| 49 static void | |
| 75 | 50 scan() |
| 0 | 51 { |
| 52 unsigned int i, num; | |
| 53 Window *wins; | |
| 54 XWindowAttributes wa; | |
| 55 Window d1, d2; | |
| 56 | |
| 57 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { | |
| 58 for(i = 0; i < num; i++) { | |
| 59 if(!XGetWindowAttributes(dpy, wins[i], &wa)) | |
| 60 continue; | |
| 61 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) | |
| 62 continue; | |
| 63 if(wa.map_state == IsViewable) | |
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64 manage(wins[i], &wa); |
| 0 | 65 } |
| 66 } | |
| 67 if(wins) | |
| 68 XFree(wins); | |
| 69 } | |
| 70 | |
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71 static int |
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72 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop) |
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73 { |
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74 Atom real; |
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75 int format; |
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76 unsigned long res, extra; |
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77 int status; |
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78 |
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79 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format, |
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80 &res, &extra, prop); |
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81 |
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82 if(status != Success || *prop == 0) { |
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83 return 0; |
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84 } |
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85 if(res == 0) { |
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86 free((void *) *prop); |
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87 } |
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88 return res; |
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89 } |
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90 |
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91 /* |
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92 * Startup Error handler to check if another window manager |
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93 * is already running. |
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94 */ |
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95 static int |
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96 xerrorstart(Display *dsply, XErrorEvent *ee) |
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97 { |
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98 otherwm = True; |
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99 return -1; |
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100 } |
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101 |
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102 /* extern functions */ |
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103 |
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104 int |
| 75 | 105 getproto(Window w) |
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106 { |
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107 unsigned char *protocols; |
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108 long res; |
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109 int protos = 0; |
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110 int i; |
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111 |
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112 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols); |
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113 if(res <= 0) { |
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114 return protos; |
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115 } |
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116 for(i = 0; i < res; i++) { |
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117 if(protocols[i] == wm_atom[WMDelete]) |
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118 protos |= WM_PROTOCOL_DELWIN; |
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119 } |
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120 free((char *) protocols); |
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121 return protos; |
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122 } |
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123 |
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124 void |
| 74 | 125 sendevent(Window w, Atom a, long value) |
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126 { |
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127 XEvent e; |
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128 |
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129 e.type = ClientMessage; |
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130 e.xclient.window = w; |
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131 e.xclient.message_type = a; |
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132 e.xclient.format = 32; |
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133 e.xclient.data.l[0] = value; |
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134 e.xclient.data.l[1] = CurrentTime; |
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135 XSendEvent(dpy, w, False, NoEventMask, &e); |
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136 XFlush(dpy); |
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137 } |
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138 |
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139 void |
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140 quit(Arg *arg) |
| 75 | 141 { |
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142 running = False; |
| 75 | 143 } |
| 144 | |
| 145 /* | |
| 0 | 146 * There's no way to check accesses to destroyed windows, thus |
| 147 * those cases are ignored (especially on UnmapNotify's). | |
| 148 * Other types of errors call Xlib's default error handler, which | |
| 149 * calls exit(). | |
| 150 */ | |
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151 int |
| 75 | 152 xerror(Display *dpy, XErrorEvent *ee) |
| 0 | 153 { |
| 75 | 154 if(ee->error_code == BadWindow |
| 155 || (ee->request_code == X_SetInputFocus | |
| 156 && ee->error_code == BadMatch) | |
| 157 || (ee->request_code == X_PolyText8 | |
| 158 && ee->error_code == BadDrawable) | |
| 159 || (ee->request_code == X_PolyFillRectangle | |
| 160 && ee->error_code == BadDrawable) | |
| 161 || (ee->request_code == X_PolySegment | |
| 162 && ee->error_code == BadDrawable) | |
| 163 || (ee->request_code == X_ConfigureWindow | |
| 164 && ee->error_code == BadMatch) | |
| 165 || (ee->request_code == X_GrabKey | |
| 166 && ee->error_code == BadAccess)) | |
| 0 | 167 return 0; |
| 34 | 168 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", |
| 75 | 169 ee->request_code, ee->error_code); |
| 170 return xerrorxlib(dpy, ee); /* may call exit() */ | |
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171 } |
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172 |
| 0 | 173 int |
| 174 main(int argc, char *argv[]) | |
| 175 { | |
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176 int i, n; |
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177 fd_set rd; |
| 0 | 178 XSetWindowAttributes wa; |
| 179 unsigned int mask; | |
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180 Bool readstdin = True; |
| 0 | 181 Window w; |
| 5 | 182 XEvent ev; |
| 0 | 183 |
| 184 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) { | |
| 185 switch (argv[i][1]) { | |
| 186 case 'v': | |
| 187 fprintf(stdout, "%s", version); | |
| 188 exit(0); | |
| 189 break; | |
| 190 default: | |
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191 eprint("usage: dwm [-v]\n"); |
| 0 | 192 break; |
| 193 } | |
| 194 } | |
| 195 | |
| 196 dpy = XOpenDisplay(0); | |
| 197 if(!dpy) | |
| 75 | 198 eprint("dwm: cannot connect X server\n"); |
| 0 | 199 |
| 200 screen = DefaultScreen(dpy); | |
| 201 root = RootWindow(dpy, screen); | |
| 202 | |
| 203 /* check if another WM is already running */ | |
| 75 | 204 otherwm = False; |
| 205 XSetErrorHandler(xerrorstart); | |
| 0 | 206 /* this causes an error if some other WM is running */ |
| 207 XSelectInput(dpy, root, SubstructureRedirectMask); | |
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208 XFlush(dpy); |
| 0 | 209 |
| 75 | 210 if(otherwm) |
| 211 eprint("dwm: another window manager is already running\n"); | |
| 0 | 212 |
| 213 XSetErrorHandler(0); | |
| 75 | 214 xerrorxlib = XSetErrorHandler(xerror); |
| 0 | 215 |
| 216 /* init atoms */ | |
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217 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); |
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218 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); |
| 0 | 219 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); |
| 220 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); | |
| 221 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32, | |
| 222 PropModeReplace, (unsigned char *) net_atom, NetLast); | |
| 223 | |
| 224 /* init cursors */ | |
| 225 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); | |
| 226 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); | |
| 227 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); | |
| 228 | |
| 73 | 229 grabkeys(); |
| 0 | 230 |
| 5 | 231 /* style */ |
| 74 | 232 dc.bg = getcolor(BGCOLOR); |
| 233 dc.fg = getcolor(FGCOLOR); | |
| 234 dc.border = getcolor(BORDERCOLOR); | |
| 235 setfont(FONT); | |
| 5 | 236 |
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237 sx = sy = 0; |
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238 sw = DisplayWidth(dpy, screen); |
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239 sh = DisplayHeight(dpy, screen); |
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240 mw = (sw * MASTERW) / 100; |
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241 |
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242 wa.override_redirect = 1; |
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243 wa.background_pixmap = ParentRelative; |
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244 wa.event_mask = ButtonPressMask | ExposureMask; |
| 5 | 245 |
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246 bx = by = 0; |
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247 bw = sw; |
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248 dc.h = bh = dc.font.height + 4; |
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249 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen), |
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250 CopyFromParent, DefaultVisual(dpy, screen), |
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251 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
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252 XDefineCursor(dpy, barwin, cursor[CurNormal]); |
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253 XMapRaised(dpy, barwin); |
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254 |
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255 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); |
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256 dc.gc = XCreateGC(dpy, root, 0, 0); |
| 74 | 257 drawstatus(); |
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258 |
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259 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); |
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260 |
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261 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \ |
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262 | LeaveWindowMask; |
| 0 | 263 wa.cursor = cursor[CurNormal]; |
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264 |
| 0 | 265 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); |
| 266 | |
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267 strcpy(stext, "dwm-"VERSION); |
| 75 | 268 scan(); |
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269 |
|
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270 /* main event loop, reads status text from stdin as well */ |
| 61 | 271 Mainloop: |
| 5 | 272 while(running) { |
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273 FD_ZERO(&rd); |
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274 if(readstdin) |
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275 FD_SET(STDIN_FILENO, &rd); |
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276 FD_SET(ConnectionNumber(dpy), &rd); |
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277 |
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278 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0); |
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279 if(i == -1 && errno == EINTR) |
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280 continue; |
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281 if(i < 0) |
| 75 | 282 eprint("select failed\n"); |
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283 else if(i > 0) { |
| 64 | 284 if(FD_ISSET(ConnectionNumber(dpy), &rd)) { |
| 285 while(XPending(dpy)) { | |
| 286 XNextEvent(dpy, &ev); | |
| 287 if(handler[ev.type]) | |
| 288 (handler[ev.type])(&ev); /* call handler */ | |
| 289 } | |
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290 } |
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291 if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) { |
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292 i = n = 0; |
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293 for(;;) { |
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294 if((i = getchar()) == EOF) { |
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295 /* broken pipe/end of producer */ |
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296 readstdin = False; |
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297 strcpy(stext, "broken pipe"); |
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298 goto Mainloop; |
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299 } |
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300 if(i == '\n' || n >= sizeof(stext) - 1) |
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301 break; |
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302 stext[n++] = i; |
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303 } |
|
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304 stext[n] = 0; |
| 74 | 305 drawstatus(); |
|
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306 } |
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307 } |
| 5 | 308 } |
| 0 | 309 |
| 310 cleanup(); | |
| 311 XCloseDisplay(dpy); | |
| 312 | |
| 313 return 0; | |
| 314 } |