dwm

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commit 5b44976a2d8bdd1397727663ce019374d6b2730a
parent 6475be926bef4916ce632988a2fa408a637babc7
Author: Anselm R. Garbe <garbeam@wmii.de>
Date:   Fri, 14 Jul 2006 17:30:37 +0200

if stdin writer stops working, dwm consumed much IO load because it still tried to select on this fd, fixed

Diffstat:
Mmain.c | 10+++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/main.c b/main.c @@ -190,6 +190,7 @@ main(int argc, char *argv[]) fd_set rd; XSetWindowAttributes wa; unsigned int mask; + Bool readstdin = True; Window w; XEvent ev; @@ -283,7 +284,8 @@ main(int argc, char *argv[]) Mainloop: while(running) { FD_ZERO(&rd); - FD_SET(STDIN_FILENO, &rd); + if(readstdin) + FD_SET(STDIN_FILENO, &rd); FD_SET(ConnectionNumber(dpy), &rd); i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0); @@ -299,11 +301,13 @@ Mainloop: (handler[ev.type])(&ev); /* call handler */ } } - if(FD_ISSET(STDIN_FILENO, &rd)) { + if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) { i = n = 0; for(;;) { if((i = getchar()) == EOF) { - stext[0] = 0; + /* broken pipe/end of producer */ + readstdin = False; + strcpy(stext, "broken pipe"); goto Mainloop; } if(i == '\n' || n >= sizeof(stext) - 1)