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io_event_add: return if eventtype is already registered.

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This commit is contained in:
Florian Westphal 2007-01-18 00:25:26 +00:00
parent 1b852fce72
commit f9b9850662
1 changed files with 4 additions and 2 deletions
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6
src/ngircd/io.c
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@ -12,7 +12,7 @@
#include "portab.h" #include "portab.h"
static char UNUSED id[] = "$Id: io.c,v 1.23 2006/12/26 16:00:46 alex Exp $"; static char UNUSED id[] = "$Id: io.c,v 1.24 2007/01/18 00:25:26 fw Exp $";
#include <assert.h> #include <assert.h>
#include <stdlib.h> #include <stdlib.h>
@ -463,7 +463,9 @@ io_event_add(int fd, short what)
io_event *i = io_event_get(fd); io_event *i = io_event_get(fd);
if (!i) return false; if (!i) return false;
if (i->what == what) return true;
if ((i->what & what) == what) /* event type is already registered */
return true;
#ifdef DEBUG_IO #ifdef DEBUG_IO
Log(LOG_DEBUG, "io_event_add(): fd %d (arg: %d), what %d.", i->fd, fd, what); Log(LOG_DEBUG, "io_event_add(): fd %d (arg: %d), what %d.", i->fd, fd, what);
#endif #endif