release of FMQ objects in specific order to avoid blocking on destroy

sy-c · sy-c · commit 85292e0610c5 · 2018-06-14T10:47:41.000+02:00
diff --git a/src/ConsumerFMQchannel.cxx b/src/ConsumerFMQchannel.cxx
@@ -137,6 +137,11 @@ class ConsumerFMQchannel: public Consumer {
   }
   
   ~ConsumerFMQchannel() {
+    // release in reverse order
+    mp=nullptr;
+    memoryBuffer=nullptr;   // warning: data range may still be referenced in memory bank manager
+    sendingChannel=nullptr;
+    transportFactory=nullptr;
   }
   
   int pushData(DataBlockContainerReference &) {

Original file line number	Diff line number	Diff line change
`@@ -137,6 +137,11 @@ class ConsumerFMQchannel: public Consumer {`
`137`	`137`	`}`
`138`	`138`
`139`	`139`	`~ConsumerFMQchannel() {`
	`140`	`+ // release in reverse order`
	`141`	`+ mp=nullptr;`
	`142`	`+ memoryBuffer=nullptr; // warning: data range may still be referenced in memory bank manager`
	`143`	`+ sendingChannel=nullptr;`
	`144`	`+ transportFactory=nullptr;`
`140`	`145`	`}`
`141`	`146`
`142`	`147`	`int pushData(DataBlockContainerReference &) {`