aos/usr/init/distops/caplock.c
Daniel Schwyn 6d444bf552 Main handout
Signed-off-by: Daniel Schwyn <daniel.schwyn@inf.ethz.ch>
2022-03-03 14:57:51 +01:00

50 lines
1.2 KiB
C

/*
* Copyright (c) 2012, ETH Zurich.
* All rights reserved.
*
* This file is distributed under the terms in the attached LICENSE file.
* If you do not find this file, copies can be found by writing to:
* ETH Zurich D-INFK, Haldeneggsteig 4, CH-8092 Zurich. Attn: Systems Group.
*/
#include "caplock.h"
#include <aos/aos.h>
#include <aos/waitset.h>
#include <aos/event_queue.h>
#include <aos/debug.h>
#include "distops/invocations.h"
#include "distops/debug.h"
#include "distops/capqueue.h"
#include "distops/domcap.h"
static struct capqueue_queue global_queue;
void
caplock_wait(struct domcapref cap,
struct event_queue_node *qn, struct event_closure cont)
{
DEBUG_CAPOPS("caplock_wait\n");
capqueue_wait(&global_queue, qn, cont);
}
void
caplock_unlock(struct domcapref cap)
{
errval_t err = monitor_unlock_cap(cap.croot, cap.cptr, cap.level);
if (err_no(err) == SYS_ERR_CAP_NOT_FOUND ||
err == err_push(SYS_ERR_CAP_NOT_FOUND, SYS_ERR_IDENTIFY_LOOKUP))
{
DEBUG_ERR(err, "unlocking cap");
}
else if (err_is_fail(err)) {
USER_PANIC_ERR(err, "unlocking cap");
}
capqueue_notify(&global_queue);
}
void
caplock_init(struct waitset *ws)
{
capqueue_init(&global_queue, ws);
}