add reftrack.h

Add global Reference Counter tracker
2017-08-29 16:22:52 -05:00
parent 3597fbe382
commit 34896560ea
5 changed files with 549 additions and 0 deletions
--- a/testApp/misc/test_reftrack.cpp
+++ b/testApp/misc/test_reftrack.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <stdexcept>
+
+#include <epicsUnitTest.h>
+#include <testMain.h>
+
+#include <pv/epicsException.h>
+#include <pv/reftrack.h>
+
+namespace {
+
+void testReg()
+{
+    testDiag("testReg()");
+
+    static size_t cnt1 = 1;
+
+    epics::registerRefCounter("cnt1", &cnt1);
+
+    testOk1(epics::readRefCounter("cnt1")==1);
+
+    cnt1 = 2;
+
+    testOk1(epics::readRefCounter("cnt1")==2);
+
+    epics::unregisterRefCounter("cnt1", &cnt1);
+
+    testOk1(epics::readRefCounter("cnt1")==0);
+}
+
+void testSnap()
+{
+    testDiag("testSnap()");
+
+    static size_t cnt1 = 1,
+                  cnt2 = 10;
+
+    epics::registerRefCounter("cnt1", &cnt1);
+    epics::registerRefCounter("cnt2", &cnt2);
+
+    epics::RefSnapshot snap1;
+    snap1.update();
+
+    cnt1 = 2;
+    cnt2 = 11;
+    static size_t cnt3 = 21;
+    epics::registerRefCounter("cnt3", &cnt3);
+
+    epics::RefSnapshot snap2;
+    snap2.update();
+
+    cnt1 = 4;
+    cnt2 = 13;
+    cnt3 = 23;
+    epics::unregisterRefCounter("cnt1", &cnt1);
+
+    epics::RefSnapshot snap3;
+    snap3.update();
+
+    testOk1(snap1.size()>=2);
+    testOk1(snap2.size()>=3);
+    testOk1(snap3.size()>=2);
+
+    epics::RefSnapshot delta12(snap2-snap1);
+    epics::RefSnapshot delta13(snap3-snap1);
+    epics::RefSnapshot delta23(snap3-snap2);
+
+    testOk1(delta12.size()>=3);
+    testOk1(delta13.size()>=3);
+    testOk1(delta23.size()>=3);
+
+    testOk1(delta12["cnt1"]==epics::RefSnapshot::Count(2, 1));
+    testOk1(delta12["cnt2"]==epics::RefSnapshot::Count(11, 1));
+    testOk1(delta12["cnt3"]==epics::RefSnapshot::Count(21, 21));
+
+    testOk1(delta23["cnt1"]==epics::RefSnapshot::Count(0, -2));
+    testOk1(delta23["cnt2"]==epics::RefSnapshot::Count(13, 2));
+    testOk1(delta23["cnt3"]==epics::RefSnapshot::Count(23, 2));
+
+    testOk1(delta13["cnt1"]==epics::RefSnapshot::Count(0, -1));
+    testOk1(delta13["cnt2"]==epics::RefSnapshot::Count(13, 3));
+    testOk1(delta13["cnt3"]==epics::RefSnapshot::Count(23, 23));
+}
+
+} // namespace
+
+MAIN(test_reftrack)
+{
+    testPlan(18);
+    try {
+        testReg();
+        testSnap();
+    }catch(std::exception& e){
+        PRINT_EXCEPTION(e);
+        testAbort("Unexpected exception: %s", e.what());
+    }
+    return testDone();
+}