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/*
* Copyright (C) 2008-2012, Parallels, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <sys/types.h>
#include <signal.h>
#include "list.h"
#include "cleanup.h"
#include "ploop.h"
static __thread struct ploop_cancel_handle __cancel_data;
struct ploop_cancel_handle *ploop_get_cancel_handle(void)
{
return &__cancel_data;
}
struct ploop_cleanup_hook *register_cleanup_hook(cleanup_FN fn, void *data)
{
struct ploop_cleanup_hook *h;
struct ploop_cancel_handle *handle = ploop_get_cancel_handle();
list_head_t *head = &handle->head;
if (head->next == NULL)
list_head_init(head);
h = malloc(sizeof(struct ploop_cleanup_hook));
if (h == NULL)
return NULL;
h->fn = fn;
h->data = data;
list_add(&h->list, head);
return h;
}
void unregister_cleanup_hook(struct ploop_cleanup_hook *h)
{
if (h != NULL) {
list_del(&h->list);
free(h);
}
}
void ploop_cancel_operation(void)
{
struct ploop_cleanup_hook *it;
struct ploop_cancel_handle *handle = ploop_get_cancel_handle();
list_head_t *head = &handle->head;
ploop_log(0, "Cancelling...");
handle->flags = 1;
if (head->next != NULL) {
list_for_each(it, head, list) {
it->fn(it->data);
}
}
}
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