CDRMonitor: print to streams

pvDataApp/misc/CDRMonitor.cpp

@@ -67,6 +67,15 @@ CDRMonitor::show(FILE *fd)
     }
 }
 
+void
+CDRMonitor::show(std::ostream& out) const
+{
+    for(CDRNode *cur=first(); !!cur; cur=cur->next())
+    {
+        cur->show(out);
+    }
+}
+
 void
 CDRNode::show(FILE *fd)
 {
@@ -86,6 +95,23 @@ CDRNode::show(FILE *fd)
         fprintf(fd,"\n");
 }
 
+void
+CDRNode::show(std::ostream& out) const
+{
+    Lock x(&guard);
+    if(!current.cons && !current.dtys && !current.refs)
+        return;
+    out<<nodeName<<"  totalConstruct "<<current.cons
+            <<" totalDestruct "<<current.dtys;
+    ssize_t alive=current.cons;
+    alive-=current.dtys;
+    if(current.refs)
+        out<<" totalReference "<<current.refs;
+    if(alive)
+        out<<" ACTIVE "<<alive;
+    out<<"\n";
+}
+
 void
 onceNode(void* raw)
 {
@@ -93,4 +119,16 @@ onceNode(void* raw)
     inst->node=new CDRNode(inst->name);
 }
 
-}}
+}} // namespace epics::pvData
+
+std::ostream& operator<<(std::ostream& out,const epics::pvData::CDRMonitor& mon)
+{
+    mon.show(out);
+    return out;
+}
+
+std::ostream& operator<<(std::ostream& out,const epics::pvData::CDRNode& node)
+{
+    node.show(out);
+    return out;
+}

pvDataApp/misc/CDRMonitor.h

@@ -6,6 +6,7 @@
  */
 #ifndef CDRMONITOR_H
 #define CDRMONITOR_H
+#include <ostream>
 #include <stddef.h>
 #include <stdlib.h>
 #include <stddef.h>
@@ -46,9 +47,10 @@ public:
 
     CDRCount current(); //!< current global count
 
-    CDRNode* first(){return firstNode;}
+    CDRNode* first() const{return firstNode;}
 
     void show(FILE*);
+    void show(std::ostream&) const;
 private:
     // Private ctor for singleton
     CDRMonitor();
@@ -77,6 +79,7 @@ public:
     CDRCount get() const{Lock x(&guard); return current;}
 
     void show(FILE*);
+    void show(std::ostream&) const;
 private:
     const String nodeName;
     CDRCount current;
@@ -130,4 +133,8 @@ static CDRNodeInstance NAME ## _node={0,EPICS_THREAD_ONCE_INIT,#NAME}
 #endif
 
 }}
+
+std::ostream& operator<<(std::ostream&,const epics::pvData::CDRMonitor&);
+std::ostream& operator<<(std::ostream&,const epics::pvData::CDRNode&);
+
 #endif  /* CDRMONITOR_H */