static void
retrieve_ownership__rx(errval_t status, struct retrieve_rpc_st *st)
{
caplock_unlock(st->cap);
st->result_handler(status, st->st);
free(st);
}
static void
revoke_result__rx(errval_t result,
struct revoke_master_st *st,
bool locked)
{
DEBUG_CAPOPS("%s\n", __FUNCTION__);
errval_t err;
if (locked) {
caplock_unlock(st->cap);
}
if (err_is_ok(result)) {
// clear the remote copies bit
err = monitor_domcap_remote_relations(st->cap.croot, st->cap.cptr,
st->cap.bits, 0, RRELS_COPY_BIT,
NULL);
if (err_is_fail(err) && err_no(err) != SYS_ERR_CAP_NOT_FOUND) {
DEBUG_ERR(err, "resetting remote copies bit after revoke");
}
}
DEBUG_CAPOPS("%s ## revocation completed, calling %p\n", __FUNCTION__,
st->result_handler);
st->result_handler(result, st->st);
free(st);
}
void
capops_retrieve(struct domcapref cap,
move_result_handler_t result_handler,
void *st)
{
errval_t err;
distcap_state_t state;
err = dom_cnode_get_state(cap, &state);
GOTO_IF_ERR(err, report_error);
if (distcap_state_is_busy(state)) {
err = MON_ERR_REMOTE_CAP_RETRY;
}
if (distcap_state_is_foreign(state)) {
err = MON_ERR_CAP_FOREIGN;
}
GOTO_IF_ERR(err, report_error);
err = monitor_lock_cap(cap.croot, cap.cptr, cap.bits);
GOTO_IF_ERR(err, report_error);
struct retrieve_rpc_st *rst = NULL;
err = calloce(1, sizeof(*rst), &rst);
GOTO_IF_ERR(err, unlock_cap);
rst->cap = cap;
rst->result_handler = result_handler;
rst->st = st;
err = monitor_get_domcap_owner(cap, &rst->prev_owner);
GOTO_IF_ERR(err, free_st);
if (rst->prev_owner == my_core_id) {
err = SYS_ERR_OK;
goto free_st;
}
retrieve_owner__enq(rst);
return;
free_st:
free(rst);
unlock_cap:
caplock_unlock(cap);
report_error:
result_handler(err, st);
}