public WalkFetchConnection(IWalkTransport t, WalkRemoteObjectDatabase w)
{
_idBuffer = new MutableObjectId();
_objectDigest = Constants.newMessageDigest();
var wt = (Transport)t;
_local = wt.Local;
_objCheck = wt.CheckFetchedObjects ? new ObjectChecker() : null;
_remotes = new List<WalkRemoteObjectDatabase> { w };
_unfetchedPacks = new LinkedList<RemotePack>();
_packsConsidered = new List<string>();
_noPacksYet = new LinkedList<WalkRemoteObjectDatabase>();
_noPacksYet.AddFirst(w);
_noAlternatesYet = new LinkedList<WalkRemoteObjectDatabase>();
_noAlternatesYet.AddFirst(w);
_fetchErrors = new Dictionary<ObjectId, List<Exception>>();
_packLocks = new List<PackLock>(4);
_revWalk = new RevWalk.RevWalk(_local);
_treeWalk = new TreeWalk.TreeWalk(_local);
COMPLETE = _revWalk.newFlag("COMPLETE");
IN_WORK_QUEUE = _revWalk.newFlag("IN_WORK_QUEUE");
LOCALLY_SEEN = _revWalk.newFlag("LOCALLY_SEEN");
_localCommitQueue = new DateRevQueue();
_workQueue = new LinkedList<ObjectId>();
}
public PendingGenerator(RevWalk w, DateRevQueue p, RevFilter f, GeneratorOutputType outputType)
{
_walker = w;
_pending = p;
_filter = f;
_outputType = outputType;
CanDispose = true;
}
public override RevCommit next()
{
RevWalk w = _walker;
RevFilter rf = w.getRevFilter();
TreeFilter tf = w.getTreeFilter();
AbstractRevQueue q = _walker.Queue;
if (rf == RevFilter.MERGE_BASE)
{
// Computing for merge bases is a special case and does not
// use the bulk of the generator pipeline.
//
if (tf != TreeFilter.ALL)
{
throw new InvalidOperationException("Cannot combine TreeFilter " + tf + " with RevFilter " + rf + ".");
}
var mbg = new MergeBaseGenerator(w);
_walker.Pending = mbg;
_walker.Queue = AbstractRevQueue.EmptyQueue;
mbg.init(q);
return mbg.next();
}
bool uninteresting = q.anybodyHasFlag(RevWalk.UNINTERESTING);
bool boundary = _walker.hasRevSort(RevSort.BOUNDARY);
if (!boundary && _walker is ObjectWalk)
{
// The object walker requires boundary support to color
// trees and blobs at the boundary uninteresting so it
// does not produce those in the result.
//
boundary = true;
}
if (boundary && !uninteresting)
{
// If we were not fed uninteresting commits we will never
// construct a boundary. There is no reason to include the
// extra overhead associated with that in our pipeline.
//
boundary = false;
}
DateRevQueue pending;
GeneratorOutputType pendingOutputType = 0;
if (q is DateRevQueue)
{
pending = (DateRevQueue)q;
}
else
{
pending = new DateRevQueue(q);
}
if (tf != TreeFilter.ALL)
{
rf = AndRevFilter.create(rf, new RewriteTreeFilter(w, tf));
pendingOutputType |= GeneratorOutputType.HasRewrite | GeneratorOutputType.NeedsRewrite;
}
_walker.Queue = q;
Generator g = new PendingGenerator(w, pending, rf, pendingOutputType);
if (boundary)
{
// Because the boundary generator may produce uninteresting
// commits we cannot allow the pending generator to dispose
// of them early.
//
((PendingGenerator)g).CanDispose = false;
}
if ((g.OutputType & GeneratorOutputType.NeedsRewrite) != GeneratorOutputType.None)
{
// Correction for an upstream NEEDS_REWRITE is to buffer
// fully and then Apply a rewrite generator that can
// pull through the rewrite chain and produce a dense
// output graph.
//
g = new FIFORevQueue(g);
g = new RewriteGenerator(g);
}
if (_walker.hasRevSort(RevSort.TOPO) && (g.OutputType & GeneratorOutputType.SortTopo) == 0)
{
g = new TopoSortGenerator(g);
}
if (_walker.hasRevSort(RevSort.REVERSE))
{
g = new LIFORevQueue(g);
}
if (boundary)
{
g = new BoundaryGenerator(w, g);
}
else if (uninteresting)
{
// Try to protect ourselves from uninteresting commits producing
// due to clock skew in the commit time stamps. Delay such that
// we have a chance at coloring enough of the graph correctly,
// and then strip any UNINTERESTING nodes that may have leaked
// through early.
//
if (pending.peek() != null)
{
g = new DelayRevQueue(g);
}
g = new FixUninterestingGenerator(g);
}
w.Pending = g;
return g.next();
}
public PendingGenerator(RevWalk w, DateRevQueue p,
RevFilter f, int @out)
{
walker = w;
pending = p;
filter = f;
output = @out;
canDispose = true;
}
public MergeBaseGenerator(RevWalk w)
{
walker = w;
pending = new DateRevQueue();
}