/// <summary>
/// This method is called by the node to post build
/// requests into a queue in the parent engine
/// </summary>
public void PostBuildRequestsToHost(BuildRequest[] buildRequests)
{
LocalCallDescriptorForPostBuildRequests callDescriptor =
new LocalCallDescriptorForPostBuildRequests(buildRequests);
nodeCommandQueue.Enqueue(callDescriptor);
}
public void PostBuildRequestToNode(int nodeIndex, BuildRequest buildRequest)
{
ErrorUtilities.VerifyThrow(nodeIndex < nodeData.Length && nodeIndex >= 0, "Node index must be within array boundaries");
if (nodeData[nodeIndex].NodeState != NodeState.Launched)
{
// Note that we have to check the node status again inside the mutex. This
// ensures that that after flipping the status to launched inside the mutex
// there will be no more writes to the queue of targets waiting to be sent
lock (nodeStateLock)
{
// Check if we didn't initialize this node
if (nodeData[nodeIndex].NodeState != NodeState.Launched && !shuttingDown)
{
// Check if launch is in progress
if (nodeData[nodeIndex].NodeState == NodeState.NotLaunched)
{
nodeData[nodeIndex].NodeState = NodeState.LaunchInProgress;
lock (nodesToLaunch)
{
nodesToLaunch.Enqueue(nodeIndex);
}
ThreadStart threadState = new ThreadStart(this.LaunchNodeAndPostBuildRequest);
Thread taskThread = new Thread(threadState);
taskThread.Name = "MSBuild Node Launcher";
taskThread.Start();
}
nodeData[nodeIndex].TargetList.AddFirst(new LinkedListNode <BuildRequest>(buildRequest));
}
else
{
LocalCallDescriptorForPostBuildRequests callDescriptor =
new LocalCallDescriptorForPostBuildRequests(buildRequest);
nodeData[nodeIndex].NodeCommandQueue.Enqueue(callDescriptor);
}
}
}
else
{
LocalCallDescriptorForPostBuildRequests callDescriptor =
new LocalCallDescriptorForPostBuildRequests(buildRequest);
nodeData[nodeIndex].NodeCommandQueue.Enqueue(callDescriptor);
}
}
/// <summary>
/// This method first reads the objectId as an int from the stream,
/// this int should be found in the "ObjectType" enumeration. This
/// objectId informs the method what kind of object should be
/// deserialized and returned from the method. The objectId is an
/// output parameter. This parameter is also returned so it can be
/// used in the read and write methods to determine if
/// a frame or end marker was found.
/// </summary>
private object DeserializeFromStream(out int objectId)
{
object objectRead = null;
objectId = readStream.ReadByte();
switch ((ObjectType)objectId)
{
case ObjectType.NetSerialization:
objectRead = binaryFormatter.Deserialize(readStream);
break;
case ObjectType.FrameMarker:
objectRead = binaryReader.ReadInt32();
break;
case ObjectType.PostBuildResult:
objectRead = new LocalCallDescriptorForPostBuildResult();
((LocalCallDescriptorForPostBuildResult)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.PostBuildRequests:
objectRead = new LocalCallDescriptorForPostBuildRequests();
((LocalCallDescriptorForPostBuildRequests)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.PostLoggingMessagesToHost:
objectRead = new LocalCallDescriptorForPostLoggingMessagesToHost();
((LocalCallDescriptorForPostLoggingMessagesToHost)objectRead).CreateFromStream(binaryReader, loggingTypeCache);
break;
case ObjectType.InitializeNode:
objectRead = new LocalCallDescriptorForInitializeNode();
((LocalCallDescriptorForInitializeNode)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.InitializationComplete:
objectRead = new LocalCallDescriptorForInitializationComplete();
((LocalCallDescriptorForInitializationComplete)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.UpdateNodeSettings:
objectRead = new LocalCallDescriptorForUpdateNodeSettings();
((LocalCallDescriptorForUpdateNodeSettings)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.RequestStatus:
objectRead = new LocalCallDescriptorForRequestStatus();
((LocalCallDescriptorForRequestStatus)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.PostCacheEntriesToHost:
objectRead = new LocalCallDescriptorForPostingCacheEntriesToHost();
((LocalCallDescriptorForPostingCacheEntriesToHost)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.GetCacheEntriesFromHost:
objectRead = new LocalCallDescriptorForGettingCacheEntriesFromHost();
((LocalCallDescriptorForGettingCacheEntriesFromHost)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.ShutdownComplete:
objectRead = new LocalCallDescriptorForShutdownComplete();
((LocalCallDescriptorForShutdownComplete)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.ShutdownNode:
objectRead = new LocalCallDescriptorForShutdownNode();
((LocalCallDescriptorForShutdownNode)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.PostIntrospectorCommand:
objectRead = new LocalCallDescriptorForPostIntrospectorCommand(null, null);
((LocalCallDescriptorForPostIntrospectorCommand)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.GenericSingleObjectReply:
objectRead = new LocalReplyCallDescriptor();
((LocalReplyCallDescriptor)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.PostStatus:
objectRead = new LocalCallDescriptorForPostStatus();
((LocalCallDescriptorForPostStatus)objectRead).CreateFromStream(binaryReader);
break;
case ObjectType.EndMarker:
return(null);
default:
ErrorUtilities.VerifyThrow(false, "Should not be here, ObjectId:" + objectId + "Next:" + readStream.ReadByte());
break;
}
return(objectRead);
}
/// <summary>
/// This function will start a node and send requests to it
/// </summary>
private void LaunchNodeAndPostBuildRequest()
{
int nodeIndex = 0;
// Find out what node to launch
lock (nodesToLaunch)
{
nodeIndex = nodesToLaunch.Dequeue();
}
// If the provider is shutting down - don't launch the node
if (shuttingDown)
{
nodeData[nodeIndex].NodeState = NodeState.NotLaunched;
return;
}
try
{
// Either launch node or connect to an already running node
InitializeNode(nodeIndex);
if (!nodeData[nodeIndex].CommunicationFailed)
{
// Change the state of the node to launched
lock (nodeStateLock)
{
nodeData[nodeIndex].NodeState = NodeState.Launched;
}
// Send all the requests to the node. Note that the requests may end up in
// mixed order with the request currently being posted.
LinkedListNode <BuildRequest> current = nodeData[nodeIndex].TargetList.First;
BuildRequest[] buildRequests = new BuildRequest[nodeData[nodeIndex].TargetList.Count];
int i = 0;
while (current != null)
{
buildRequests[i] = current.Value;
i++;
current = current.Next;
}
LocalCallDescriptorForPostBuildRequests callDescriptor =
new LocalCallDescriptorForPostBuildRequests(buildRequests);
nodeData[nodeIndex].NodeCommandQueue.Enqueue(callDescriptor);
nodeData[nodeIndex].TargetList = null;
}
else
{
// Allow the engine to decide how to proceed since the node failed to launch
string message = ResourceUtilities.FormatResourceString("NodeProviderFailure");
ReportNodeCommunicationFailure(nodeIndex, new Exception(message), false);
}
}
catch (Exception e)
{
// Allow the engine to deal with the exception
ReportNodeCommunicationFailure(nodeIndex, e, false);
}
}