pvalink config # of workers

pdbApp/pvalink.cpp

@@ -150,4 +150,5 @@ extern "C" {
     epicsExportRegistrar(installPVAAddLinkHook);
     epicsExportAddress(jlif, lsetPVA);
     epicsExportAddress(int, pvaLinkDebug);
+    epicsExportAddress(int, pvaLinkNWorkers);
 }

pdbApp/pvalink.h

@@ -32,6 +32,7 @@
 extern "C" {
     epicsShareExtern int pvaLinkDebug;
     epicsShareExtern int pvaLinkIsolate;
+    epicsShareExtern int pvaLinkNWorkers;
 }
 
 #if 0

pdbApp/pvalink_channel.cpp

@@ -8,6 +8,8 @@
 
 #include "pvalink.h"
 
+int pvaLinkNWorkers = 1;
+
 namespace pvalink {
 
 pvaGlobal_t *pvaGlobal;
@@ -20,7 +22,7 @@ pvaGlobal_t::pvaGlobal_t()
     ,queue("PVAL")
 {
     // worker should be above PVA worker priority?
-    queue.start(1, epicsThreadPriorityMedium);
+    queue.start(std::max(1, pvaLinkNWorkers), epicsThreadPriorityMedium);
 }
 
 pvaGlobal_t::~pvaGlobal_t()

pdbApp/qsrv.dbd

@@ -15,3 +15,6 @@ variable(qsrvDisableFormat, int)
 # from pdb.cpp
 # Extra debug info when parsing group definitions
 variable(PDBProviderDebug, int)
+# Number of worker threads for handling monitor updates.
+# Default: 1
+variable(pvaLinkNWorkers, int)