72cf2d4f0e
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits15cc923584,f40d753718,96555a96d7and3990d09adfbut the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*
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* Virtual hardware watchdog.
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*
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* Copyright (C) 2009 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* By Richard W.M. Jones (rjones@redhat.com).
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*/
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#include "qemu-common.h"
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#include "qemu-option.h"
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#include "qemu-config.h"
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#include "qemu-queue.h"
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#include "sysemu.h"
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#include "hw/watchdog.h"
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/* Possible values for action parameter. */
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#define WDT_RESET 1 /* Hard reset. */
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#define WDT_SHUTDOWN 2 /* Shutdown. */
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#define WDT_POWEROFF 3 /* Quit. */
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#define WDT_PAUSE 4 /* Pause. */
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#define WDT_DEBUG 5 /* Prints a message and continues running. */
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#define WDT_NONE 6 /* Do nothing. */
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static int watchdog_action = WDT_RESET;
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static QLIST_HEAD(watchdog_list, WatchdogTimerModel) watchdog_list;
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void watchdog_add_model(WatchdogTimerModel *model)
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{
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QLIST_INSERT_HEAD(&watchdog_list, model, entry);
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}
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/* Returns:
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* 0 = continue
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* 1 = exit program with error
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* 2 = exit program without error
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*/
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int select_watchdog(const char *p)
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{
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WatchdogTimerModel *model;
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QemuOpts *opts;
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/* -watchdog ? lists available devices and exits cleanly. */
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if (strcmp(p, "?") == 0) {
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QLIST_FOREACH(model, &watchdog_list, entry) {
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fprintf(stderr, "\t%s\t%s\n",
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model->wdt_name, model->wdt_description);
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}
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return 2;
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}
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QLIST_FOREACH(model, &watchdog_list, entry) {
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if (strcasecmp(model->wdt_name, p) == 0) {
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/* add the device */
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opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
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qemu_opt_set(opts, "driver", p);
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return 0;
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}
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}
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fprintf(stderr, "Unknown -watchdog device. Supported devices are:\n");
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QLIST_FOREACH(model, &watchdog_list, entry) {
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fprintf(stderr, "\t%s\t%s\n",
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model->wdt_name, model->wdt_description);
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}
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return 1;
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}
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int select_watchdog_action(const char *p)
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{
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if (strcasecmp(p, "reset") == 0)
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watchdog_action = WDT_RESET;
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else if (strcasecmp(p, "shutdown") == 0)
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watchdog_action = WDT_SHUTDOWN;
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else if (strcasecmp(p, "poweroff") == 0)
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watchdog_action = WDT_POWEROFF;
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else if (strcasecmp(p, "pause") == 0)
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watchdog_action = WDT_PAUSE;
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else if (strcasecmp(p, "debug") == 0)
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watchdog_action = WDT_DEBUG;
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else if (strcasecmp(p, "none") == 0)
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watchdog_action = WDT_NONE;
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else
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return -1;
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return 0;
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}
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/* This actually performs the "action" once a watchdog has expired,
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* ie. reboot, shutdown, exit, etc.
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*/
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void watchdog_perform_action(void)
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{
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switch(watchdog_action) {
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case WDT_RESET: /* same as 'system_reset' in monitor */
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qemu_system_reset_request();
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break;
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case WDT_SHUTDOWN: /* same as 'system_powerdown' in monitor */
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qemu_system_powerdown_request();
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break;
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case WDT_POWEROFF: /* same as 'quit' command in monitor */
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exit(0);
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break;
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case WDT_PAUSE: /* same as 'stop' command in monitor */
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vm_stop(0);
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break;
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case WDT_DEBUG:
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fprintf(stderr, "watchdog: timer fired\n");
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break;
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case WDT_NONE:
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break;
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}
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}
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