mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Juergen Gross
935e5fb0d5
Propagate the flags parameter of xenevtchn_open() to the OS-specific handlers in order to enable handling them there. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation;
|
|
* version 2.1 of the License.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "private.h"
|
|
|
|
static int all_restrict_cb(Xentoolcore__Active_Handle *ah, domid_t domid)
|
|
{
|
|
xenevtchn_handle *xce = CONTAINER_OF(ah, *xce, tc_ah);
|
|
|
|
if ( xce->fd < 0 )
|
|
/* just in case */
|
|
return 0;
|
|
|
|
return xenevtchn_restrict(xce, domid);
|
|
}
|
|
|
|
xenevtchn_handle *xenevtchn_open(xentoollog_logger *logger, unsigned int flags)
|
|
{
|
|
xenevtchn_handle *xce;
|
|
int rc;
|
|
|
|
if ( flags )
|
|
{
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
xce = malloc(sizeof(*xce));
|
|
if ( !xce )
|
|
return NULL;
|
|
|
|
xce->fd = -1;
|
|
xce->logger = logger;
|
|
xce->logger_tofree = NULL;
|
|
|
|
xce->tc_ah.restrict_callback = all_restrict_cb;
|
|
xentoolcore__register_active_handle(&xce->tc_ah);
|
|
|
|
if ( !xce->logger )
|
|
{
|
|
xce->logger = xce->logger_tofree = (xentoollog_logger *)
|
|
xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
|
|
if ( !xce->logger )
|
|
goto err;
|
|
}
|
|
|
|
rc = osdep_evtchn_open(xce, flags);
|
|
if ( rc < 0 )
|
|
goto err;
|
|
|
|
return xce;
|
|
|
|
err:
|
|
xentoolcore__deregister_active_handle(&xce->tc_ah);
|
|
osdep_evtchn_close(xce);
|
|
xtl_logger_destroy(xce->logger_tofree);
|
|
free(xce);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int xenevtchn_close(xenevtchn_handle *xce)
|
|
{
|
|
int rc;
|
|
|
|
if ( !xce )
|
|
return 0;
|
|
|
|
xentoolcore__deregister_active_handle(&xce->tc_ah);
|
|
rc = osdep_evtchn_close(xce);
|
|
xtl_logger_destroy(xce->logger_tofree);
|
|
free(xce);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int xenevtchn_restrict(xenevtchn_handle *xce, domid_t domid)
|
|
{
|
|
return osdep_evtchn_restrict(xce, domid);
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* mode: C
|
|
* c-file-style: "BSD"
|
|
* c-basic-offset: 4
|
|
* tab-width: 4
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*/
|