ENH: add verbose option for dlLibraryTable::open/close

- allows silent operation when we know what we are doing.

src/OpenFOAM/db/dlLibraryTable/dlLibraryTable.C

@@ -62,7 +62,11 @@ Foam::dlLibraryTable::~dlLibraryTable()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-bool Foam::dlLibraryTable::open(const fileName& functionLibName)
+bool Foam::dlLibraryTable::open
+(
+    const fileName& functionLibName,
+    const bool verbose
+)
 {
     if (functionLibName.size())
     {
@@ -70,11 +74,14 @@ bool Foam::dlLibraryTable::open(const fileName& functionLibName)
 
         if (!functionLibPtr)
         {
-            WarningIn
-            (
-                "dlLibraryTable::open(const fileName& functionLibName)"
-            )   << "could not load " << functionLibName
-                << endl;
+            if (verbose)
+            {
+                WarningIn
+                (
+                    "dlLibraryTable::open(const fileName&)"
+                )   << "could not load " << functionLibName
+                    << endl;
+            }
 
             return false;
         }
@@ -97,7 +104,11 @@ bool Foam::dlLibraryTable::open(const fileName& functionLibName)
 }
 
 
-bool Foam::dlLibraryTable::close(const fileName& functionLibName)
+bool Foam::dlLibraryTable::close
+(
+    const fileName& functionLibName,
+    const bool verbose
+)
 {
     void* libPtr = findLibrary(functionLibName);
     if (libPtr)
@@ -106,11 +117,14 @@ bool Foam::dlLibraryTable::close(const fileName& functionLibName)
 
         if (!dlClose(libPtr))
         {
-            WarningIn
-            (
-                "dlLibraryTable::close(const fileName& functionLibName)"
-            )   << "could not close " << functionLibName
-                << endl;
+            if (verbose)
+            {
+                WarningIn
+                (
+                    "dlLibraryTable::close(const fileName&)"
+                )   << "could not close " << functionLibName
+                    << endl;
+            }
 
             return false;
         }
@@ -144,7 +158,7 @@ bool Foam::dlLibraryTable::open
     {
         fileNameList libNames(dict.lookup(libsEntry));
 
-        bool allOpened = (libNames.size() > 0);
+        bool allOpened = !libNames.empty();
 
         forAll(libNames, i)
         {

src/OpenFOAM/db/dlLibraryTable/dlLibraryTable.H

@@ -94,11 +94,11 @@ public:
 
     // Member Functions
 
-        //- Open the named library
-        static bool open(const fileName& name);
+        //- Open the named library, optionally with warnings if problems occur
+        static bool open(const fileName& name, const bool verbose = true);
 
-        //- Close the named library
-        static bool close(const fileName& name);
+        //- Close the named library, optionally with warnings if problems occur
+        static bool close(const fileName& name, const bool verbose = true);
 
         //- Find the handle of the named library
         static void* findLibrary(const fileName& name);
@@ -109,7 +109,7 @@ public:
 
         //- Open all the libraries listed in the 'libsEntry' entry in the
         //  given dictionary if present and check the additions
-        //  to the give constructor table
+        //  to the given constructor table
         template<class TablePtr>
         static bool open
         (