if stdin writer stops working, dwm consumed much IO load because it still tried to select on this fd, fixed
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6475be926b
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10
main.c
10
main.c
@ -190,6 +190,7 @@ main(int argc, char *argv[])
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fd_set rd;
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XSetWindowAttributes wa;
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unsigned int mask;
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Bool readstdin = True;
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Window w;
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XEvent ev;
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@ -283,7 +284,8 @@ main(int argc, char *argv[])
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Mainloop:
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while(running) {
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FD_ZERO(&rd);
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FD_SET(STDIN_FILENO, &rd);
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if(readstdin)
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FD_SET(STDIN_FILENO, &rd);
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FD_SET(ConnectionNumber(dpy), &rd);
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i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
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@ -299,11 +301,13 @@ Mainloop:
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(handler[ev.type])(&ev); /* call handler */
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}
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}
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if(FD_ISSET(STDIN_FILENO, &rd)) {
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if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) {
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i = n = 0;
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for(;;) {
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if((i = getchar()) == EOF) {
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stext[0] = 0;
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/* broken pipe/end of producer */
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readstdin = False;
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strcpy(stext, "broken pipe");
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goto Mainloop;
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}
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if(i == '\n' || n >= sizeof(stext) - 1)
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