move more common files to shared/ and add them to shared.la

[elogind.git] / src / watchdog.c

diff --git a/src/watchdog.c b/src/watchdog.c
deleted file mode 100644 (file)
index 13265e7..0000000
--- a/src/watchdog.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2012 Lennart Poettering
-
-  systemd 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; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/ioctl.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <linux/watchdog.h>
-
-#include "watchdog.h"
-#include "log.h"
-
-static int watchdog_fd = -1;
-static usec_t watchdog_timeout = (usec_t) -1;
-
-static int update_timeout(void) {
-        int r;
-
-        if (watchdog_fd < 0)
-                return 0;
-
-        if (watchdog_timeout == (usec_t) -1)
-                return 0;
-        else if (watchdog_timeout == 0) {
-                int flags;
-
-                flags = WDIOS_DISABLECARD;
-                r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
-                if (r < 0) {
-                        log_warning("Failed to disable hardware watchdog: %m");
-                        return -errno;
-                }
-        } else {
-                int sec, flags;
-                char buf[FORMAT_TIMESPAN_MAX];
-
-                sec = (int) ((watchdog_timeout + USEC_PER_SEC - 1) / USEC_PER_SEC);
-                r = ioctl(watchdog_fd, WDIOC_SETTIMEOUT, &sec);
-                if (r < 0) {
-                        log_warning("Failed to set timeout to %is: %m", sec);
-                        return -errno;
-                }
-
-                watchdog_timeout = (usec_t) sec * USEC_PER_SEC;
-                log_info("Set hardware watchdog to %s.", format_timespan(buf, sizeof(buf), watchdog_timeout));
-
-                flags = WDIOS_ENABLECARD;
-                r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
-                if (r < 0) {
-                        log_warning("Failed to enable hardware watchdog: %m");
-                        return -errno;
-                }
-
-                r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0);
-                if (r < 0) {
-                        log_warning("Failed to ping hardware watchdog: %m");
-                        return -errno;
-                }
-        }
-
-        return 0;
-}
-
-static int open_watchdog(void) {
-        struct watchdog_info ident;
-
-        if (watchdog_fd >= 0)
-                return 0;
-
-        watchdog_fd = open("/dev/watchdog", O_WRONLY|O_CLOEXEC);
-        if (watchdog_fd < 0)
-                return -errno;
-
-        if (ioctl(watchdog_fd, WDIOC_GETSUPPORT, &ident) >= 0)
-                log_info("Hardware watchdog '%s', version %x",
-                         ident.identity,
-                         ident.firmware_version);
-
-        return update_timeout();
-}
-
-int watchdog_set_timeout(usec_t *usec) {
-        int r;
-
-        watchdog_timeout = *usec;
-
-        /* If we didn't open the watchdog yet and didn't get any
-         * explicit timeout value set, don't do anything */
-        if (watchdog_fd < 0 && watchdog_timeout == (usec_t) -1)
-                return 0;
-
-        if (watchdog_fd < 0)
-                r = open_watchdog();
-        else
-                r = update_timeout();
-
-        *usec = watchdog_timeout;
-
-        return r;
-}
-
-int watchdog_ping(void) {
-        int r;
-
-        if (watchdog_fd < 0) {
-                r = open_watchdog();
-                if (r < 0)
-                        return r;
-        }
-
-        r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0);
-        if (r < 0) {
-                log_warning("Failed to ping hardware watchdog: %m");
-                return -errno;
-        }
-
-        return 0;
-}
-
-void watchdog_close(bool disarm) {
-        int r;
-
-        if (watchdog_fd < 0)
-                return;
-
-        if (disarm) {
-                int flags;
-
-                /* Explicitly disarm it */
-                flags = WDIOS_DISABLECARD;
-                r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
-                if (r < 0)
-                        log_warning("Failed to disable hardware watchdog: %m");
-
-                /* To be sure, use magic close logic, too */
-                for (;;) {
-                        static const char v = 'V';
-
-                        if (write(watchdog_fd, &v, 1) > 0)
-                                break;
-
-                        if (errno != EINTR) {
-                                log_error("Failed to disarm watchdog timer: %m");
-                                break;
-                        }
-                }
-        }
-
-        close_nointr_nofail(watchdog_fd);
-        watchdog_fd = -1;
-}