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b58deb344d
Most list head structs need not be given a name. In most cases the name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV or reverse iteration, but this does not apply to lists of other kinds, and even for QTAILQ in practice this is only rarely needed. In addition, we will soon reimplement those macros completely so that they do not need a name for the head struct. So clean up everything, not giving a name except in the rare case where it is necessary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*
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* Reset handlers.
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2016 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/queue.h"
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#include "sysemu/reset.h"
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/* reset/shutdown handler */
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typedef struct QEMUResetEntry {
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QTAILQ_ENTRY(QEMUResetEntry) entry;
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QEMUResetHandler *func;
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void *opaque;
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} QEMUResetEntry;
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static QTAILQ_HEAD(, QEMUResetEntry) reset_handlers =
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QTAILQ_HEAD_INITIALIZER(reset_handlers);
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void qemu_register_reset(QEMUResetHandler *func, void *opaque)
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{
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QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
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re->func = func;
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re->opaque = opaque;
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QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
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}
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void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
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{
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QEMUResetEntry *re;
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QTAILQ_FOREACH(re, &reset_handlers, entry) {
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if (re->func == func && re->opaque == opaque) {
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QTAILQ_REMOVE(&reset_handlers, re, entry);
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g_free(re);
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return;
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}
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}
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}
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void qemu_devices_reset(void)
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{
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QEMUResetEntry *re, *nre;
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/* reset all devices */
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QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
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re->func(re->opaque);
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}
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}
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