/** Unregister a su_wait_t object.
*
* The function su_devpoll_port_unregister() unregisters a su_wait_t object. The
* wait object, a callback function and a argument are removed from the
* port object.
*
* @param self - pointer to port object
* @param root - pointer to root object
* @param wait - pointer to wait object
* @param callback - callback function pointer (may be NULL)
* @param arg - argument given to callback function when it is invoked
* (may be NULL)
*
* @deprecated Use su_devpoll_port_deregister() instead.
*
* @return Nonzero index of the wait object, or -1 upon an error.
*/
int su_devpoll_port_unregister(su_port_t *self,
su_root_t *root,
su_wait_t *wait,
su_wakeup_f callback, /* XXX - ignored */
su_wakeup_arg_t *arg)
{
int i, I;
struct su_devpoll *ser;
assert(self);
assert(su_port_own_thread(self));
I = self->sup_max_index;
for (i = 1; i <= I; i++) {
ser = self->sup_indices[i];
if (ser->ser_cb &&
arg == ser->ser_arg &&
SU_WAIT_CMP(wait[0], ser->ser_wait[0]) == 0)
return su_devpoll_port_deregister0(self, ser->ser_id, 0);
}
su_seterrno(ENOENT);
return -1;
}
/** Unregister a su_wait_t object.
*
* The function su_poll_port_unregister() unregisters a su_wait_t object. The
* wait object, a callback function and a argument are removed from the
* port object.
*
* @param self - pointer to port object
* @param root - pointer to root object
* @param wait - pointer to wait object
* @param callback - callback function pointer (may be NULL)
* @param arg - argument given to callback function when it is invoked
* (may be NULL)
*
* @deprecated Use su_poll_port_deregister() instead.
*
* @return Nonzero index of the wait object, or -1 upon an error.
*/
int su_poll_port_unregister(su_port_t *self,
su_root_t *root,
su_wait_t *wait,
su_wakeup_f callback, /* XXX - ignored */
su_wakeup_arg_t *arg)
{
int n, N;
assert(self);
assert(su_port_own_thread(self));
N = self->sup_n_waits;
for (n = 0; n < N; n++) {
if (SU_WAIT_CMP(wait[0], self->sup_waits[n]) == 0) {
return su_poll_port_deregister0(self, self->sup_reverses[n], 0);
}
}
su_seterrno(ENOENT);
return -1;
}
/** Unregister a su_wait_t object.
*
* The function su_source_unregister() unregisters a su_wait_t object. The
* wait object, a callback function and a argument are removed from the
* port object.
*
* @param self - pointer to port object
* @param root - pointer to root object
* @param wait - pointer to wait object
* @param callback - callback function pointer (may be NULL)
* @param arg - argument given to callback function when it is invoked
* (may be NULL)
*
* @return Nonzero index of the wait object, or -1 upon an error.
*/
int su_source_unregister(su_port_t *self,
su_root_t *root,
su_wait_t *wait,
su_wakeup_f callback, /* XXX - ignored */
su_wakeup_arg_t *arg)
{
unsigned n, N;
unsigned i, I, j, *indices;
enter;
assert(self);
assert(SU_SOURCE_OWN_THREAD(self));
i = (unsigned)-1;
N = self->sup_n_waits;
I = self->sup_max_index;
indices = self->sup_indices;
for (n = 0; n < N; n++) {
if (SU_WAIT_CMP(wait[0], self->sup_waits[n]) != 0)
continue;
/* Found - delete it */
if (indices[n] == n)
i = n;
else for (i = 0; i < I; i++)
if (indices[i] == n)
break;
assert(i < I);
indices[i] = UINT_MAX;
g_source_remove_poll(self->sup_source, (GPollFD*)&self->sup_waits[n]);
self->sup_n_waits = N = N - 1;
if (n < N)
for (j = 0; j < I; j++)
if (self->sup_indices[j] != UINT_MAX &&
self->sup_indices[j] > n)
self->sup_indices[j]--;
for (; n < N; n++) {
g_source_remove_poll(self->sup_source, (GPollFD*)&self->sup_waits[n+1]);
self->sup_waits[n] = self->sup_waits[n+1];
g_source_add_poll(self->sup_source, (GPollFD*)&self->sup_waits[n]);
self->sup_wait_cbs[n] = self->sup_wait_cbs[n+1];
self->sup_wait_args[n] = self->sup_wait_args[n+1];
self->sup_wait_roots[n] = self->sup_wait_roots[n+1];
}
i += 1; /* 0 is failure */
if (i == I)
self->sup_max_index--;
break;
}
self->sup_registers++;
return (int)i;
}
