Mercurial > dwm-meillo
annotate main.c @ 128:0a407fbb8092
serious mistake in pop() (forgot to set c->prev to NULL on pop)
| author | arg@10ksloc.org |
|---|---|
| date | Thu, 20 Jul 2006 18:23:43 +0200 |
| parents | 1489f6b97714 |
| children | 77922a389fa8 |
| 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 |
| 123 | 20 static int (*xerrorxlib)(Display *, XErrorEvent *); |
| 75 | 21 static Bool otherwm; |
| 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; | |
| 123 | 37 Window *wins, d1, d2; |
| 0 | 38 XWindowAttributes wa; |
| 39 | |
| 40 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { | |
| 41 for(i = 0; i < num; i++) { | |
| 42 if(!XGetWindowAttributes(dpy, wins[i], &wa)) | |
| 43 continue; | |
| 44 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) | |
| 45 continue; | |
| 46 if(wa.map_state == IsViewable) | |
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47 manage(wins[i], &wa); |
| 0 | 48 } |
| 49 } | |
| 50 if(wins) | |
| 51 XFree(wins); | |
| 52 } | |
| 53 | |
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54 static int |
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55 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop) |
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56 { |
| 123 | 57 int status, format; |
| 58 unsigned long res, extra; | |
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59 Atom real; |
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60 |
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61 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format, |
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62 &res, &extra, prop); |
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63 |
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64 if(status != Success || *prop == 0) { |
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65 return 0; |
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66 } |
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67 if(res == 0) { |
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68 free((void *) *prop); |
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69 } |
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70 return res; |
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71 } |
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72 |
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76
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73 /* |
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74 * Startup Error handler to check if another window manager |
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75 * is already running. |
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76 */ |
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77 static int |
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78 xerrorstart(Display *dsply, XErrorEvent *ee) |
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79 { |
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80 otherwm = True; |
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81 return -1; |
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82 } |
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83 |
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84 /* extern */ |
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85 |
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86 char stext[1024]; |
| 126 | 87 /* CUSTOMIZE */ |
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88 int tsel = Tdev; /* default tag */ |
| 126 | 89 /* END CUSTOMIZE */ |
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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 int protos = 0; |
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105 int i; |
| 123 | 106 long res; |
| 107 unsigned char *protocols; | |
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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 |
| 123 | 151 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) |
| 152 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) | |
| 153 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) | |
| 154 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) | |
| 155 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) | |
| 156 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)) | |
| 0 | 157 return 0; |
| 34 | 158 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", |
| 123 | 159 ee->request_code, ee->error_code); |
| 75 | 160 return xerrorxlib(dpy, ee); /* may call exit() */ |
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161 } |
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162 |
| 0 | 163 int |
| 164 main(int argc, char *argv[]) | |
| 165 { | |
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166 int i, n; |
| 123 | 167 unsigned int mask; |
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168 fd_set rd; |
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169 Bool readstdin = True; |
| 0 | 170 Window w; |
| 5 | 171 XEvent ev; |
| 123 | 172 XSetWindowAttributes wa; |
| 0 | 173 |
| 174 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) { | |
| 175 switch (argv[i][1]) { | |
| 176 default: | |
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177 eprint("usage: dwm [-v]\n"); |
| 0 | 178 break; |
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179 case 'v': |
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180 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout); |
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181 exit(EXIT_SUCCESS); |
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182 break; |
| 0 | 183 } |
| 184 } | |
| 185 | |
| 186 dpy = XOpenDisplay(0); | |
| 187 if(!dpy) | |
| 75 | 188 eprint("dwm: cannot connect X server\n"); |
| 0 | 189 |
| 190 screen = DefaultScreen(dpy); | |
| 191 root = RootWindow(dpy, screen); | |
| 192 | |
| 193 /* check if another WM is already running */ | |
| 75 | 194 otherwm = False; |
| 195 XSetErrorHandler(xerrorstart); | |
| 0 | 196 /* this causes an error if some other WM is running */ |
| 197 XSelectInput(dpy, root, SubstructureRedirectMask); | |
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198 XSync(dpy, False); |
| 0 | 199 |
| 75 | 200 if(otherwm) |
| 201 eprint("dwm: another window manager is already running\n"); | |
| 0 | 202 |
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203 XSetErrorHandler(NULL); |
| 75 | 204 xerrorxlib = XSetErrorHandler(xerror); |
| 0 | 205 |
| 206 /* init atoms */ | |
| 77 | 207 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); |
| 208 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); | |
| 209 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); | |
| 210 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); | |
| 211 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, | |
| 212 PropModeReplace, (unsigned char *) netatom, NetLast); | |
| 0 | 213 |
| 214 /* init cursors */ | |
| 215 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); | |
| 216 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); | |
| 217 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); | |
| 218 | |
| 73 | 219 grabkeys(); |
| 0 | 220 |
| 5 | 221 /* style */ |
| 74 | 222 dc.bg = getcolor(BGCOLOR); |
| 223 dc.fg = getcolor(FGCOLOR); | |
| 224 dc.border = getcolor(BORDERCOLOR); | |
| 225 setfont(FONT); | |
| 5 | 226 |
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227 sx = sy = 0; |
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228 sw = DisplayWidth(dpy, screen); |
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229 sh = DisplayHeight(dpy, screen); |
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230 mw = (sw * MASTERW) / 100; |
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231 |
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232 wa.override_redirect = 1; |
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233 wa.background_pixmap = ParentRelative; |
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234 wa.event_mask = ButtonPressMask | ExposureMask; |
| 5 | 235 |
|
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236 bx = by = 0; |
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237 bw = sw; |
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238 dc.h = bh = dc.font.height + 4; |
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239 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen), |
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240 CopyFromParent, DefaultVisual(dpy, screen), |
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241 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
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242 XDefineCursor(dpy, barwin, cursor[CurNormal]); |
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243 XMapRaised(dpy, barwin); |
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244 |
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245 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); |
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246 dc.gc = XCreateGC(dpy, root, 0, 0); |
| 74 | 247 drawstatus(); |
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248 |
|
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249 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); |
|
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250 |
| 123 | 251 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask; |
| 0 | 252 wa.cursor = cursor[CurNormal]; |
| 253 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); | |
| 254 | |
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255 strcpy(stext, "dwm-"VERSION); |
| 75 | 256 scan(); |
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257 |
|
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258 /* main event loop, reads status text from stdin as well */ |
| 61 | 259 Mainloop: |
| 5 | 260 while(running) { |
|
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261 FD_ZERO(&rd); |
|
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262 if(readstdin) |
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263 FD_SET(STDIN_FILENO, &rd); |
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264 FD_SET(ConnectionNumber(dpy), &rd); |
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265 |
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266 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0); |
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267 if(i == -1 && errno == EINTR) |
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268 continue; |
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269 if(i < 0) |
| 75 | 270 eprint("select failed\n"); |
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271 else if(i > 0) { |
| 64 | 272 if(FD_ISSET(ConnectionNumber(dpy), &rd)) { |
| 273 while(XPending(dpy)) { | |
| 274 XNextEvent(dpy, &ev); | |
| 275 if(handler[ev.type]) | |
| 276 (handler[ev.type])(&ev); /* call handler */ | |
| 277 } | |
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278 } |
|
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279 if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) { |
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280 i = n = 0; |
|
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281 for(;;) { |
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282 if((i = getchar()) == EOF) { |
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283 /* broken pipe/end of producer */ |
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284 readstdin = False; |
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285 strcpy(stext, "broken pipe"); |
|
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286 goto Mainloop; |
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287 } |
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288 if(i == '\n' || n >= sizeof(stext) - 1) |
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289 break; |
|
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290 stext[n++] = i; |
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291 } |
|
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292 stext[n] = 0; |
| 74 | 293 drawstatus(); |
|
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294 } |
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295 } |
| 5 | 296 } |
| 0 | 297 |
| 298 cleanup(); | |
| 299 XCloseDisplay(dpy); | |
| 300 | |
| 301 return 0; | |
| 302 } |