Modify the implementation of the plugin manager take over

    A plugin that is taken over, if the plugin was called before being taken over
    and has a registered SESSION_EVENT_CLOSING event,
    it will be called again when the SESSION_EVENT_CLOSING event comes.
    Otherwise, the plugin will not be called.

1 files changed, 10 insertions, 4 deletions

diff --git a/readme.md b/readme.md
index b6d1023..e889e1d 100644
--- a/readme.md
+++ b/readme.md
@@ -48,12 +48,18 @@ Plugin Management APIs
 pm_session_dettach_me(session);
 
 /*
- * The current plugin takes over the current session, the pm_session_take_over setting flag disables other plugins,
+ * The current plugin(cb2) takes over the current session, the pm_session_take_over setting flag disables other plugins,
  * and the current session does not call other plugins except for the SESSION_EVENT_CLOSING event.
  *
- * The current plugin may be taken over while the session is open (SESSION_EVENT_OPENING),
- * other plugins event_cb is not called, the session pme on other plugins is NULL,
- * When the session is closed (SESSION_EVENT_CLOSING), call other plugin even_cb to destroy pme must check if pme is NULL.
+ *                               +-----+   +-----+   +-----+   +-----+
+ * Plugin runtime callback list: | cb1 |-->| cb2 |-->| cb3 |-->| cb4 |
+ *                               +-----+   +-----+   +-----+   +-----+
+ *                                           /|\
+ *                                            |
+ *                         plugin cb2 run pm_session_take_over
+ * 
+ * A plugin(cb1/cb3/cb4) that is taken over, if the plugin was called before being taken over and has a registered SESSION_EVENT_CLOSING event,
+ * it will be called again when the SESSION_EVENT_CLOSING event comes. Otherwise, the plugin will not be called.
  */
 pm_session_take_over(session);
 ```