From: Sage Weil <sage@redhat.com>
Date: Sat, 17 Nov 2018 12:50:17 +0000 (-0600)
Subject: mon/MonClient: add callback for (any) config change
X-Git-Tag: v14.1.0~875^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=14d26adf7563beda7f04a06c8d72b8fd226e4199;p=ceph.git

mon/MonClient: add callback for (any) config change

This is a coarse "there was some config update".  It's fired whether or
not it values are observed.

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/mon/MonClient.cc b/src/mon/MonClient.cc
index e78cd9d0420e..b408f95c5d40 100644
--- a/src/mon/MonClient.cc
+++ b/src/mon/MonClient.cc
@@ -374,6 +374,9 @@ void MonClient::handle_config(MConfig *m)
   ldout(cct,10) << __func__ << " " << *m << dendl;
   finisher.queue(new FunctionContext([this, m](int r) {
 	cct->_conf.set_mon_vals(cct, m->config, config_cb);
+	if (config_notify_cb) {
+	  config_notify_cb();
+	}
 	m->put();
       }));
   got_config = true;
diff --git a/src/mon/MonClient.h b/src/mon/MonClient.h
index 4d0755c14697..b16a7f22f1aa 100644
--- a/src/mon/MonClient.h
+++ b/src/mon/MonClient.h
@@ -439,6 +439,9 @@ public:
   }
 
   void register_config_callback(md_config_t::config_callback fn);
+  void register_config_notify_callback(std::function<void(void)> f) {
+    config_notify_cb = f;
+  }
   md_config_t::config_callback get_config_callback();
 
 private:
@@ -453,6 +456,7 @@ private:
   void handle_get_version_reply(MMonGetVersionReply* m);
 
   md_config_t::config_callback config_cb;
+  std::function<void(void)> config_notify_cb;
 };
 
 #endif