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ppp-manager: refactor killing pppd process by using _ppp_kill() function

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- add callback arguments to _ppp_kill(). Although most callers don't
  care, it makes it more obvious that this kills the process
  asynchronously.

- the call to nm_utils_kill_child_async() is complicated, with many
  arguments. Only call it from one place, and re-use the simpler wrapper
  function _ppp_kill() everywhere.
This commit is contained in:
Thomas Haller 2018-05-18 10:02:42 +02:00
parent f09e7797d4
commit 515663519f
1 changed files with 25 additions and 24 deletions
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49
src/ppp/nm-ppp-manager.c
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@ -135,7 +135,9 @@ G_DEFINE_TYPE (NMPPPManager, nm_ppp_manager, NM_TYPE_DBUS_OBJECT)
/*****************************************************************************/
static void _ppp_cleanup (NMPPPManager *manager);
static void _ppp_kill (NMPPPManager *manager);
static gboolean _ppp_kill (NMPPPManager *manager,
NMUtilsKillChildAsyncCb callback,
void *user_data);
/*****************************************************************************/
@ -781,7 +783,7 @@ pppd_timed_out (gpointer data)
_LOGW ("pppd timed out or didn't initialize our dbus module");
_ppp_cleanup (manager);
_ppp_kill (manager);
_ppp_kill (manager, NULL, NULL);
g_signal_emit (manager, signals[STATE_CHANGED], 0, (guint) NM_PPP_STATUS_DEAD);
@ -1121,19 +1123,23 @@ out:
return priv->pid > 0;
}
static void
_ppp_kill (NMPPPManager *manager)
static gboolean
_ppp_kill (NMPPPManager *manager,
NMUtilsKillChildAsyncCb callback,
void *user_data)
{
NMPPPManagerPrivate *priv;
NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager);
g_return_if_fail (NM_IS_PPP_MANAGER (manager));
priv = NM_PPP_MANAGER_GET_PRIVATE (manager);
if (priv->pid) {
nm_utils_kill_child_async (priv->pid, SIGTERM, LOGD_PPP, "pppd", 2000, NULL, NULL);
priv->pid = 0;
if (!priv->pid) {
/* not PID. Signal that there was nothing to kill, which consequently
* implies that the callback will not be invoked. */
return FALSE;
}
nm_utils_kill_child_async (nm_steal_int (&priv->pid),
SIGTERM, LOGD_PPP, "pppd", 2000,
callback, user_data);
return TRUE;
}
static void
@ -1204,8 +1210,10 @@ static void
kill_child_ready (pid_t pid,
gboolean success,
int child_status,
StopContext *ctx)
gpointer user_data)
{
StopContext *ctx = user_data;
if (stop_context_complete_if_cancelled (ctx))
return;
stop_context_complete (ctx);
@ -1243,15 +1251,8 @@ _ppp_manager_stop_async (NMPPPManager *manager,
return;
}
/* No cancellable operation, so just wait until it returns always */
nm_utils_kill_child_async (priv->pid,
SIGTERM,
LOGD_PPP,
"pppd",
2000,
(NMUtilsKillChildAsyncCb) kill_child_ready,
ctx);
priv->pid = 0;
if (!_ppp_kill (manager, kill_child_ready, ctx))
nm_assert_not_reached ();
}
static void
@ -1263,7 +1264,7 @@ _ppp_manager_stop_sync (NMPPPManager *manager)
nm_dbus_object_unexport (dbus);
_ppp_cleanup (manager);
_ppp_kill (manager);
_ppp_kill (manager, NULL, NULL);
}
/*****************************************************************************/
@ -1337,7 +1338,7 @@ dispose (GObject *object)
nm_dbus_object_unexport (dbus);
_ppp_cleanup (self);
_ppp_kill (self);
_ppp_kill (self, NULL, NULL);
g_clear_object (&priv->act_req);