73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*
|
|
* Reset handlers.
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2016 Red Hat, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/queue.h"
|
|
#include "sysemu/reset.h"
|
|
|
|
/* reset/shutdown handler */
|
|
|
|
typedef struct QEMUResetEntry {
|
|
QTAILQ_ENTRY(QEMUResetEntry) entry;
|
|
QEMUResetHandler *func;
|
|
void *opaque;
|
|
} QEMUResetEntry;
|
|
|
|
static QTAILQ_HEAD(, QEMUResetEntry) reset_handlers =
|
|
QTAILQ_HEAD_INITIALIZER(reset_handlers);
|
|
|
|
void qemu_register_reset(QEMUResetHandler *func, void *opaque)
|
|
{
|
|
QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
|
|
|
|
re->func = func;
|
|
re->opaque = opaque;
|
|
QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
|
|
}
|
|
|
|
void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
|
|
{
|
|
QEMUResetEntry *re;
|
|
|
|
QTAILQ_FOREACH(re, &reset_handlers, entry) {
|
|
if (re->func == func && re->opaque == opaque) {
|
|
QTAILQ_REMOVE(&reset_handlers, re, entry);
|
|
g_free(re);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void qemu_devices_reset(void)
|
|
{
|
|
QEMUResetEntry *re, *nre;
|
|
|
|
/* reset all devices */
|
|
QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
|
|
re->func(re->opaque);
|
|
}
|
|
}
|
|
|