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(main_loop_poll): Pass a buffer which is guaranteed to be large enough to read inotify event. Ignore EAGAIN error. Better error message. Add branch predicition. (main_loop_epoll): Likewise.

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This commit is contained in:
Ulrich Drepper 2008-08-03 15:46:46 +00:00
parent 3f39adace0
commit 39e175bb3a
1 changed files with 13 additions and 6 deletions
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19
nscd/connections.c
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@ -1868,8 +1868,11 @@ main_loop_poll (void)
bool to_clear[lastdb] = { false, };
union
{
# ifndef PATH_MAX
# define PATH_MAX 1024
# endif
struct inotify_event i;
char buf[100];
char buf[sizeof (struct inotify_event) + PATH_MAX];
} inev;
while (1)
@ -1878,17 +1881,20 @@ main_loop_poll (void)
sizeof (inev)));
if (nb < (ssize_t) sizeof (struct inotify_event))
{
if (nb == -1)
if (__builtin_expect (nb == -1 && errno != EAGAIN,
0))
{
/* Something went wrong when reading the inotify
data. Better disable inotify. */
dbg_log (_("\
disabled inotify after read error %d"),
errno);
conns[1].fd = -1;
firstfree = 1;
if (nused == 2)
nused = 1;
close (inotify_fd);
inotify_fd = -1;
dbg_log (_("disabled inotify after read error"));
}
break;
}
@ -2047,7 +2053,7 @@ main_loop_epoll (int efd)
union
{
struct inotify_event i;
char buf[100];
char buf[sizeof (struct inotify_event) + PATH_MAX];
} inev;
while (1)
@ -2056,15 +2062,16 @@ main_loop_epoll (int efd)
sizeof (inev)));
if (nb < (ssize_t) sizeof (struct inotify_event))
{
if (nb == -1)
if (__builtin_expect (nb == -1 && errno != EAGAIN, 0))
{
/* Something went wrong when reading the inotify
data. Better disable inotify. */
dbg_log (_("disabled inotify after read error %d"),
errno);
(void) epoll_ctl (efd, EPOLL_CTL_DEL, inotify_fd,
NULL);
close (inotify_fd);
inotify_fd = -1;
dbg_log (_("disabled inotify after read error"));
}
break;
}