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authorLennart Poettering <lennart@poettering.net>2012-04-13 19:45:53 +0200
committerLennart Poettering <lennart@poettering.net>2012-04-13 19:46:51 +0200
commit2dad62205f3412198769f227ac4a1130f7887eec (patch)
tree49ac43930650e3abe00729a39df1be5a3b213070 /src/core/dbus-manager.c
parent186b97d99fc4017d9c88221791bf8423130a9a1f (diff)
dbus: expose whether we have a hardware watchdog on the bus
Diffstat (limited to 'src/core/dbus-manager.c')
-rw-r--r--src/core/dbus-manager.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c
index 46b47849d2..88945b5c64 100644
--- a/src/core/dbus-manager.c
+++ b/src/core/dbus-manager.c
@@ -242,7 +242,8 @@
" <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"RuntimeWatchdogUSec\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"ShutdownWatchdogUSec\" type=\"s\" access=\"read\"/>\n"
+ " <property name=\"ShutdownWatchdogUSec\" type=\"s\" access=\"read\"/>\n" \
+ " <property name=\"HaveWatchdog\" type=\"b\" access=\"read\"/>\n"
#ifdef HAVE_SYSV_COMPAT
#define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV \
@@ -493,6 +494,20 @@ static int bus_manager_send_unit_files_changed(Manager *m) {
return r;
}
+static int bus_manager_append_have_watchdog(DBusMessageIter *i, const char *property, void *data) {
+ dbus_bool_t b;
+
+ assert(i);
+ assert(property);
+
+ b = access("/dev/watchdog", F_OK) >= 0;
+
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
+ return -ENOMEM;
+
+ return 0;
+}
+
static const char systemd_property_string[] =
PACKAGE_STRING "\0"
DISTRIBUTION "\0"
@@ -534,6 +549,7 @@ static const BusProperty bus_manager_properties[] = {
{ "DefaultStandardError", bus_manager_append_exec_output, "s", offsetof(Manager, default_std_error) },
{ "RuntimeWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, runtime_watchdog), },
{ "ShutdownWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, shutdown_watchdog), },
+ { "HaveWatchdog", bus_manager_append_have_watchdog, "b", 0 },
#ifdef HAVE_SYSV_COMPAT
{ "SysVConsole", bus_property_append_bool, "b", offsetof(Manager, sysv_console) },
{ "SysVInitPath", bus_property_append_strv, "as", offsetof(Manager, lookup_paths.sysvinit_path), true },