From d7bce5145bb852a9cf439326bb33e5a142b6a2e1 Mon Sep 17 00:00:00 2001
From: Roman Romanchenko <rromanchenko@sipwise.com>
Date: Mon, 11 Feb 2019 12:43:24 +0200
Subject: [PATCH] TT#52455 sems-* constant 10% CPU usage in idle Virtual
 environment vagrant/vmware

    - DBRegagent loop sleep replaced with waitForEvent() call

Change-Id: I525b635442a16a00aca0e3fa5444b02393d9b1fe
---
 debian/patches/series                |  1 +
 debian/patches/sipwise/tt52455.patch | 37 ++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 debian/patches/sipwise/tt52455.patch

diff --git a/debian/patches/series b/debian/patches/series
index 8ff011d1..1f3131bc 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,3 +1,4 @@
+sipwise/tt52455.patch
 upstream/0000-b-f-sbc-fixed-reading-encoding-param-in-readPayload.patch
 upstream/0001-b-f-sbc-codecs-compare-encoding_param-only-if-both-0.patch
 upstream/0002-core-codec-init-support-for-fmt-params-negotiation-f.patch
diff --git a/debian/patches/sipwise/tt52455.patch b/debian/patches/sipwise/tt52455.patch
new file mode 100644
index 00000000..5d8b17b9
--- /dev/null
+++ b/debian/patches/sipwise/tt52455.patch
@@ -0,0 +1,37 @@
+--- a/apps/db_reg_agent/DBRegAgent.cpp
++++ b/apps/db_reg_agent/DBRegAgent.cpp
+@@ -897,9 +897,8 @@ void DBRegAgent::run() {
+   DBG("running DBRegAgent thread...\n");
+   shutdown_finished = false;
+   while (running) {
++    waitForEventTimed(500); // 500 milliseconds
+     processEvents();
+-
+-    usleep(1000); // 1ms
+   }
+ 
+   DBG("DBRegAgent done, removing all registrations from Event Dispatcher...\n");
+--- a/core/AmEventQueue.cpp
++++ b/core/AmEventQueue.cpp
+@@ -100,6 +100,11 @@ void AmEventQueue::waitForEvent()
+   ev_pending.wait_for();
+ }
+ 
++void AmEventQueue::waitForEventTimed(unsigned long msec)
++{
++  ev_pending.wait_for_to(msec);
++}
++
+ void AmEventQueue::processSingleEvent()
+ {
+   m_queue.lock();
+--- a/core/AmEventQueue.h
++++ b/core/AmEventQueue.h
+@@ -80,6 +80,7 @@ public:
+   void postEvent(AmEvent*);
+   void processEvents();
+   void waitForEvent();
++  void waitForEventTimed(unsigned long msec);
+   void processSingleEvent();
+   bool eventPending();
+