gboolean
nm_dns_plugin_child_kill (NMDnsPlugin *self)
{
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
if (priv->watch_id) {
g_source_remove (priv->watch_id);
priv->watch_id = 0;
}
if (priv->pid) {
nm_utils_kill_child_sync (priv->pid, SIGTERM, LOGD_DNS, priv->progname, NULL, 1000, 0);
priv->pid = 0;
g_free (priv->progname);
priv->progname = NULL;
}
if (priv->pidfile) {
unlink (priv->pidfile);
g_free (priv->pidfile);
priv->pidfile = NULL;
}
return TRUE;
}
static void
finalize (GObject *object)
{
NMDnsPlugin *self = NM_DNS_PLUGIN (object);
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
g_free (priv->progname);
g_free (priv->pidfile);
G_OBJECT_CLASS (nm_dns_plugin_parent_class)->finalize (object);
}
static void
watch_cb (GPid pid, gint status, gpointer user_data)
{
NMDnsPlugin *self = NM_DNS_PLUGIN (user_data);
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
priv->pid = 0;
g_free (priv->progname);
priv->progname = NULL;
g_signal_emit (self, signals[CHILD_QUIT], 0, status);
}
static void
dispose (GObject *object)
{
NMDnsPlugin *self = NM_DNS_PLUGIN (object);
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
if (!priv->disposed) {
priv->disposed = TRUE;
nm_dns_plugin_child_kill (self);
}
G_OBJECT_CLASS (nm_dns_plugin_parent_class)->dispose (object);
}
GPid
nm_dns_plugin_child_spawn (NMDnsPlugin *self,
const char **argv,
const char *pidfile,
const char *kill_match)
{
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
GError *error = NULL;
char *cmdline;
g_return_val_if_fail (argv != NULL, 0);
g_return_val_if_fail (argv[0] != NULL, 0);
g_warn_if_fail (priv->progname == NULL);
g_free (priv->progname);
priv->progname = g_path_get_basename (argv[0]);
if (pidfile) {
g_return_val_if_fail (kill_match != NULL, 0);
kill_existing (priv->progname, pidfile, kill_match);
g_free (priv->pidfile);
priv->pidfile = g_strdup (pidfile);
}
nm_log_info (LOGD_DNS, "DNS: starting %s...", priv->progname);
cmdline = g_strjoinv (" ", (char **) argv);
nm_log_dbg (LOGD_DNS, "DNS: command line: %s", cmdline);
g_free (cmdline);
priv->pid = 0;
if (g_spawn_async (NULL, (char **) argv, NULL,
G_SPAWN_DO_NOT_REAP_CHILD,
child_setup,
NULL, &priv->pid,
&error)) {
nm_log_dbg (LOGD_DNS, "%s started with pid %d", priv->progname, priv->pid);
priv->watch_id = g_child_watch_add (priv->pid, (GChildWatchFunc) watch_cb, self);
} else {
nm_log_warn (LOGD_DNS, "Failed to spawn %s: (%d) %s",
priv->progname, error ? error->code : -1,
error && error->message ? error->message : "(unknown)");
g_clear_error (&error);
}
return priv->pid;
}
gboolean nm_dns_plugin_child_kill (NMDnsPlugin *self)
{
NMDnsPluginPrivate *priv = NM_DNS_PLUGIN_GET_PRIVATE (self);
if (priv->watch_id) {
g_source_remove (priv->watch_id);
priv->watch_id = 0;
}
if (priv->pid) {
KillInfo *info;
if (kill (priv->pid, SIGTERM) == 0) {
info = g_malloc0 (sizeof (KillInfo));
info->pid = priv->pid;
info->progname = g_strdup (priv->progname);
g_timeout_add_seconds (2, ensure_killed, info);
} else {
kill (priv->pid, SIGKILL);
/* ensure the child is reaped */
nm_log_dbg (LOGD_DNS, "waiting for %s pid %d to exit", priv->progname, priv->pid);
waitpid (priv->pid, NULL, 0);
nm_log_dbg (LOGD_DNS, "%s pid %d cleaned up", priv->progname, priv->pid);
}
priv->pid = 0;
g_free (priv->progname);
priv->progname = NULL;
}
if (priv->pidfile) {
unlink (priv->pidfile);
g_free (priv->pidfile);
priv->pidfile = NULL;
}
return TRUE;
}
