functionObjects: Separated writeFile and logFiles (previously writeFiles) from regionFunctionObject

Now the functionality to write single graph files or log files (vs time)
may be used in the creation of any form of functionObject, not just
those relating to a mesh region.

src/functionObjects/utilities/residuals/residuals.C

@@ -53,7 +53,8 @@ Foam::functionObjects::residuals::residuals
     const dictionary& dict
 )
 :
-    writeFiles(name, runTime, dict, name),
+    regionFunctionObject(name, runTime, dict),
+    logFiles(obr_, name),
     fieldSet_()
 {
     if (!isA<fvMesh>(obr_))
@@ -77,6 +78,8 @@ Foam::functionObjects::residuals::~residuals()
 
 bool Foam::functionObjects::residuals::read(const dictionary& dict)
 {
+    regionFunctionObject::read(dict);
+
     dict.lookup("fields") >> fieldSet_;
 
     return true;
@@ -114,7 +117,7 @@ bool Foam::functionObjects::residuals::execute()
 
 bool Foam::functionObjects::residuals::write()
 {
-    writeFiles::write();
+    logFiles::write();
 
     if (Pstream::master())
     {

src/functionObjects/utilities/residuals/residuals.H

@@ -51,7 +51,8 @@ Description
 
 See also
     Foam::functionObject
-    Foam::functionObjects::writeFiles
+    Foam::functionObjects::regionFunctionObject
+    Foam::functionObjects::logFiles
     Foam::functionObjects::timeControl
 
 SourceFiles
@@ -62,7 +63,8 @@ SourceFiles
 #ifndef functionObjects_residuals_H
 #define functionObjects_residuals_H
 
-#include "writeFiles.H"
+#include "regionFunctionObject.H"
+#include "logFiles.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -77,7 +79,8 @@ namespace functionObjects
 
 class residuals
 :
-    public writeFiles
+    public regionFunctionObject,
+    public logFiles
 {
 protected: