7 #define LENGTH(X) (sizeof(X) / sizeof (X[0]))
13 unsigned int interval;
16 void dummysighandler(int num);
17 void sighandler(int num);
18 void getcmds(int time);
20 void getsigcmds(int signal);
22 void sighandler(int signum);
24 int getstatus(char *str, char *last);
27 void termhandler(int signum);
35 static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
36 static char statusstr[2][256];
37 static int statusContinue = 1;
38 static void (*writestatus) () = setroot;
40 //opens process *cmd and stores output in *output
41 void getcmd(const Block *block, char *output)
43 strcpy(output, block->icon);
44 char *cmd = block->command;
45 FILE *cmdf = popen(cmd,"r");
49 int i = strlen(block->icon);
50 fgets(output+i, CMDLENGTH-i, cmdf);
52 if (delim != '\0' && --i)
58 void getcmds(int time)
61 for(int i = 0; i < LENGTH(blocks); i++)
64 if ((current->interval != 0 && time % current->interval == 0) || time == -1)
65 getcmd(current,statusbar[i]);
70 void getsigcmds(int signal)
73 for (int i = 0; i < LENGTH(blocks); i++)
76 if (current->signal == signal)
77 getcmd(current,statusbar[i]);
83 /* initialize all real time signals with dummy handler */
84 for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
85 signal(i, dummysighandler);
87 for(int i = 0; i < LENGTH(blocks); i++)
89 if (blocks[i].signal > 0)
90 signal(SIGRTMIN+blocks[i].signal, sighandler);
96 int getstatus(char *str, char *last)
100 for(int i = 0; i < LENGTH(blocks); i++)
101 strcat(str, statusbar[i]);
102 str[strlen(str)-1] = '\0';
103 return strcmp(str, last);//0 if they are the same
108 if (!getstatus(statusstr[0], statusstr[1]))//Only set root if text has changed.
110 Display *d = XOpenDisplay(NULL);
114 screen = DefaultScreen(dpy);
115 root = RootWindow(dpy, screen);
116 XStoreName(dpy, root, statusstr[0]);
122 if (!getstatus(statusstr[0], statusstr[1]))//Only write out if text has changed.
124 printf("%s\n",statusstr[0]);
136 while(statusContinue)
146 /* this signal handler should do nothing */
147 void dummysighandler(int signum)
154 void sighandler(int signum)
156 getsigcmds(signum-SIGRTMIN);
161 void termhandler(int signum)
167 int main(int argc, char** argv)
169 for(int i = 0; i < argc; i++)
171 if (!strcmp("-d",argv[i]))
172 delim = argv[++i][0];
173 else if(!strcmp("-p",argv[i]))
174 writestatus = pstdout;
176 signal(SIGTERM, termhandler);
177 signal(SIGINT, termhandler);