/*
called when the kernel has some events for us
*/
static void inotify_handler(struct tevent_context *ev, struct tevent_fd *fde,
uint16_t flags, void *private_data)
{
struct inotify_private *in = talloc_get_type(private_data,
struct inotify_private);
int bufsize = 0;
struct inotify_event *e0, *e;
uint32_t prev_cookie=0;
NTSTATUS status;
/*
we must use FIONREAD as we cannot predict the length of the
filenames, and thus can't know how much to allocate
otherwise
*/
if (ioctl(in->fd, FIONREAD, &bufsize) != 0 ||
bufsize == 0) {
DEBUG(0,("No data on inotify fd?!\n"));
TALLOC_FREE(fde);
return;
}
e0 = e = (struct inotify_event *)TALLOC_SIZE(in, bufsize + 1);
if (e == NULL) return;
((uint8_t *)e)[bufsize] = '\0';
status = read_data(in->fd, (char *)e0, bufsize);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Failed to read all inotify data - %s\n",
nt_errstr(status)));
talloc_free(e0);
/* the inotify fd will now be out of sync,
* can't keep reading data off it */
TALLOC_FREE(fde);
return;
}
/* we can get more than one event in the buffer */
while (e && (bufsize >= sizeof(*e))) {
struct inotify_event *e2 = NULL;
bufsize -= e->len + sizeof(*e);
if (bufsize >= sizeof(*e)) {
e2 = (struct inotify_event *)(e->len + sizeof(*e) + (char *)e);
}
inotify_dispatch(in, e, prev_cookie, e2);
prev_cookie = e->cookie;
e = e2;
}
talloc_free(e0);
}
/*
called when the kernel has some events for us
*/
static void inotify_handler(struct event_context *ev, struct fd_event *fde,
uint16_t flags, void *private_data)
{
struct inotify_private *in = talloc_get_type(private_data,
struct inotify_private);
int bufsize = 0;
struct inotify_event *e0, *e;
uint32_t prev_cookie=0;
/*
we must use FIONREAD as we cannot predict the length of the
filenames, and thus can't know how much to allocate
otherwise
*/
if ((ioctl(in->fd, FIONREAD, &bufsize) != 0) && (errno == EACCES)) {
/*
* Workaround for broken SELinux policies on Fedora
*/
TALLOC_FREE(fde);
in->broken_inotify = True;
return;
}
if (bufsize == 0) {
DEBUG(0,("No data on inotify fd?!\n"));
return;
}
e0 = e = (struct inotify_event *)TALLOC_SIZE(in, bufsize);
if (e == NULL) return;
if (read(in->fd, e0, bufsize) != bufsize) {
DEBUG(0,("Failed to read all inotify data\n"));
talloc_free(e0);
return;
}
/* we can get more than one event in the buffer */
while (bufsize >= sizeof(*e)) {
struct inotify_event *e2 = NULL;
bufsize -= e->len + sizeof(*e);
if (bufsize >= sizeof(*e)) {
e2 = (struct inotify_event *)(e->len + sizeof(*e) + (char *)e);
}
inotify_dispatch(in, e, prev_cookie, e2);
prev_cookie = e->cookie;
e = e2;
}
talloc_free(e0);
}