c# - Createhardlink in managed code -

i'm developing application creates hundreds of thousands of hardlinks (this core feature of application).

i use parallel programming features available in dotnet 4.0. works well. see example snippits below.

either:

parallel.for(from, until, delegate(int i) {     j += 1;     fileindex = convert.toint32(math.round(j * 0.001) + 1);      //determine hardlink files; have have unique name hardlink each individual hardlink     filename = fiarray[fileindex].name; //path.getfilenamewithoutextension(textboxfile.text);     destinationfilename = path.combine(textboxdestination.text, string.concat(filename, "_", i.tostring(), ".txt"));      fr.createhardlink(destinationfilename, fiarray[fileindex].fullname); }); 

or:

//loop actual work (int = 0; < nudthreads.value; i++) {     //determine work package per task     = 0 + until + 1;     until = (i * (convert.toint32(hardlinks / threadno))) + 1;     var compute = task.factory.startnew(() =>     {         token.throwifcancellationrequested(); //uit boek         return work(from, until, false);//todo: counter moet nog worden meegenomen     }, tokensource.token);      tasks.add(compute);      var displayresults = compute.continuewith(resulttask => updatecontrols(),                              cancellationtoken.none,                              taskcontinuationoptions.onlyonrantocompletion,                              ui);     checkedlistboxfiles.items.add(datetime.now.tostring() + " : created hardlinks for: " + displayresults + " files.");     application.doevents();      var displaycancelledtasks = compute.continuewith(resulttask => updatecontrols(),                                 cancellationtoken.none,                                    taskcontinuationoptions.onlyoncanceled, ui);     checkedlistboxfiles.items.add(datetime.now.tostring() + " : cancelled task at: " + displaycancelledtasks + " files.");     application.doevents(); } 

the question have this: createhardlink part of kernel32.dll , hence runs in unmanaged code. know parallel ctp parallel tasks have run in managed code. there managed alternative createhardlink? know how create hardlink in managed code , have thougths parallel programming , using unmanaged code?

there's little point in trying create hard links in parallel fashion. not cpu bound operation, i/o bound. not expect performance benefit approach when compared against naive serial approach.

your question managed , unmanaged code relating hardlink creation interesting. must remember i/o access managed code @ point call unmanaged code. os not managed , way create hardlink go through os. think need more precise restriction of ctp managed code means.