From e9189947044a7f836f1af5eb774aac2ac32dbaa8 Mon Sep 17 00:00:00 2001
From: Michael Davidsaver <mdavidsaver@gmail.com>
Date: Sun, 27 Jan 2019 18:33:17 -0800
Subject: [PATCH] test for RPRO/PUTF regression

---
 modules/database/test/std/rec/asyncproctest.c | 30 ++++++++++++++++++-
 .../database/test/std/rec/asyncproctest.db    | 27 +++++++++++++++++
 2 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/modules/database/test/std/rec/asyncproctest.c b/modules/database/test/std/rec/asyncproctest.c
index a8b09a928..ac788c755 100644
--- a/modules/database/test/std/rec/asyncproctest.c
+++ b/modules/database/test/std/rec/asyncproctest.c
@@ -9,6 +9,7 @@
 
 #include <testMain.h>
 #include <dbUnitTest.h>
+#include <errlog.h>
 #include <dbCommon.h>
 #include <dbAccess.h>
 #include <epicsEvent.h>
@@ -16,6 +17,7 @@
 #include <iocsh.h>
 #include "registryFunction.h"
 #include <subRecord.h>
+#include <dbScan.h>
 
 epicsEventId done;
 static int waitFor;
@@ -28,11 +30,17 @@ long doneSubr(subRecord *prec)
     return 0;
 }
 
+static
+void dummydone(void *usr, struct dbCommon* prec)
+{
+    epicsEventMustTrigger(done);
+}
+
 void asyncproctest_registerRecordDeviceDriver(struct dbBase *);
 
 MAIN(asyncproctest)
 {
-    testPlan(21);
+    testPlan(25);
 
     done = epicsEventMustCreate(epicsEventEmpty);
 
@@ -99,6 +107,26 @@ MAIN(asyncproctest)
     testdbGetFieldEqual("chain3", DBF_LONG, 7);
     testdbGetFieldEqual("chain3.A", DBF_LONG, 2);
 
+    testDiag("===== Chain 4 ======");
+
+    {
+        dbCommon *dummy=testdbRecordPtr("chain4_dummy");
+
+        testdbPutFieldOk("chain4_pos.PROC", DBF_LONG, 0);
+
+        /* sync once queue to wait for any queued RPRO */
+        scanOnceCallback(dummy, dummydone, NULL);
+
+        if (epicsEventWaitWithTimeout(done, 10.0) != epicsEventOK)
+            testAbort("Processing timed out");
+
+        testTodoBegin("Bug");
+        testdbGetFieldEqual("chain4_pos", DBF_SHORT, 1);
+        testdbGetFieldEqual("chain4_rel", DBF_SHORT, 1);
+        testdbGetFieldEqual("chain4_lim", DBF_SHORT, 1);
+        testTodoEnd();
+    }
+
     testIocShutdownOk();
 
     testdbCleanup();
diff --git a/modules/database/test/std/rec/asyncproctest.db b/modules/database/test/std/rec/asyncproctest.db
index 352b6ca56..4f8a97522 100644
--- a/modules/database/test/std/rec/asyncproctest.db
+++ b/modules/database/test/std/rec/asyncproctest.db
@@ -53,3 +53,30 @@ record(sub, "done3") {
     field(FLNK, "chain3")
     field(TPRO, "$(TPRO=)")
 }
+
+
+# loop breaking regression
+# should _not_ RPRO
+record(calcout,"chain4_pos") {
+    field(CALC, "E:=E+1;E")
+    field(OUT,"chain4_rel.A PP")
+    field(TPRO, "$(TPRO=)")
+}
+
+record(calc,"chain4_rel") {
+    field(CALC, "E:=E+1;E")
+    field(FLNK,"chain4_lim")
+    field(TPRO, "$(TPRO=)")
+}
+
+record(calc,"chain4_lim") {
+    field(CALC, "E:=E+1;E")
+    field(INPA,"chain4_pos PP")
+    field(INPB,"chain4_pos.HIGH PP")
+    field(INPC,"chain4_pos.LOW PP")
+    field(TPRO, "$(TPRO=)")
+}
+
+record(bo, "chain4_dummy") {
+field(TPRO, "$(TPRO=)")
+}