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ae.c: set errno when error is not a failing syscall.

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In this way the caller is able to perform better error checking or to
use strerror() without the risk of meaningless error messages being
displayed.
This commit is contained in:
antirez 2013-01-03 14:18:03 +01:00
parent 4dc1e0dd30
commit e9261b1e2d
1 changed files with 5 additions and 1 deletions
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6
src/ae.c
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@ -38,6 +38,7 @@
#include <poll.h> #include <poll.h>
#include <string.h> #include <string.h>
#include <time.h> #include <time.h>
#include <errno.h>
#include "ae.h" #include "ae.h"
#include "zmalloc.h" #include "zmalloc.h"
@ -104,7 +105,10 @@ void aeStop(aeEventLoop *eventLoop) {
int aeCreateFileEvent(aeEventLoop *eventLoop, int fd, int mask, int aeCreateFileEvent(aeEventLoop *eventLoop, int fd, int mask,
aeFileProc *proc, void *clientData) aeFileProc *proc, void *clientData)
{ {
if (fd >= eventLoop->setsize) return AE_ERR; if (fd >= eventLoop->setsize) {
errno = ERANGE;
return AE_ERR;
}
aeFileEvent *fe = &eventLoop->events[fd]; aeFileEvent *fe = &eventLoop->events[fd];
if (aeApiAddEvent(eventLoop, fd, mask) == -1) if (aeApiAddEvent(eventLoop, fd, mask) == -1)