/// <summary>
/// Instantiates a new MSBuild or MSBuildTaskHost process acting as a child node.
/// </summary>
internal bool CreateNode(TaskHostContext hostContext, INodePacketFactory factory, INodePacketHandler handler, TaskHostConfiguration configuration)
{
ErrorUtilities.VerifyThrowArgumentNull(factory, "factory");
ErrorUtilities.VerifyThrow(!_nodeIdToPacketFactory.ContainsKey((int)hostContext), "We should not already have a factory for this context! Did we forget to call DisconnectFromHost somewhere?");
if (AvailableNodes == 0)
{
ErrorUtilities.ThrowInternalError("All allowable nodes already created ({0}).", _nodeContexts.Count);
return(false);
}
// Start the new process. We pass in a node mode with a node number of 2, to indicate that we
// want to start up an MSBuild task host node.
string commandLineArgs = $" /nologo /nodemode:2 /nodereuse:{ComponentHost.BuildParameters.EnableNodeReuse} ";
string msbuildLocation = GetMSBuildLocationFromHostContext(hostContext);
// we couldn't even figure out the location we're trying to launch ... just go ahead and fail.
if (msbuildLocation == null)
{
return(false);
}
CommunicationsUtilities.Trace("For a host context of {0}, spawning executable from {1}.", hostContext.ToString(), msbuildLocation ?? "MSBuild.exe");
// Make it here.
NodeContext context = GetNode
(
msbuildLocation,
commandLineArgs,
(int)hostContext,
this,
CommunicationsUtilities.GetTaskHostHostHandshake(hostContext),
CommunicationsUtilities.GetTaskHostClientHandshake(hostContext),
NodeContextTerminated
);
if (null != context)
{
_nodeContexts[hostContext] = context;
// Start the asynchronous read.
context.BeginAsyncPacketRead();
_activeNodes.Add((int)hostContext);
_noNodesActiveEvent.Reset();
return(true);
}
return(false);
}
private void NodeContextCreated(NodeContext context)
{
_nodeContexts[(HandshakeOptions)context.NodeId] = context;
// Start the asynchronous read.
context.BeginAsyncPacketRead();
lock (_activeNodes)
{
_activeNodes.Add(context.NodeId);
}
_noNodesActiveEvent.Reset();
}
/// <summary>
/// Instantiates a new MSBuild process acting as a child node.
/// </summary>
public bool CreateNode(int nodeId, INodePacketFactory factory, NodeConfiguration configuration)
{
ErrorUtilities.VerifyThrowArgumentNull(factory, "factory");
if (_nodeContexts.Count == ComponentHost.BuildParameters.MaxNodeCount)
{
ErrorUtilities.ThrowInternalError("All allowable nodes already created ({0}).", _nodeContexts.Count);
return(false);
}
// Start the new process. We pass in a node mode with a node number of 1, to indicate that we
// want to start up just a standard MSBuild out-of-proc node.
string commandLineArgs = " /nologo /nodemode:1 ";
// Enable node re-use if it is set.
if (ComponentHost.BuildParameters.EnableNodeReuse)
{
commandLineArgs += "/nr";
}
// Make it here.
CommunicationsUtilities.Trace("Starting to acquire a new or existing node to establish node ID {0}...", nodeId);
NodeContext context = GetNode(null, commandLineArgs, nodeId, factory, NodeProviderOutOfProc.HostHandshake, NodeProviderOutOfProc.ClientHandshake, NodeContextTerminated);
if (null != context)
{
_nodeContexts[nodeId] = context;
// Start the asynchronous read.
context.BeginAsyncPacketRead();
// Configure the node.
context.SendData(configuration);
return(true);
}
throw new BuildAbortedException(ResourceUtilities.FormatResourceString("CouldNotConnectToMSBuildExe", ComponentHost.BuildParameters.NodeExeLocation));
}
/// <summary>
/// Instantiates a new MSBuild process acting as a child node.
/// </summary>
public bool CreateNode(int nodeId, INodePacketFactory factory, NodeConfiguration configuration)
{
ErrorUtilities.VerifyThrowArgumentNull(factory, "factory");
if (_nodeContexts.Count == ComponentHost.BuildParameters.MaxNodeCount)
{
ErrorUtilities.ThrowInternalError("All allowable nodes already created ({0}).", _nodeContexts.Count);
return(false);
}
// Start the new process. We pass in a node mode with a node number of 1, to indicate that we
// want to start up just a standard MSBuild out-of-proc node.
// Note: We need to always pass /nodeReuse to ensure the value for /nodeReuse from msbuild.rsp
// (next to msbuild.exe) is ignored.
string commandLineArgs = $"/nologo /nodemode:1 /nodeReuse:{ComponentHost.BuildParameters.EnableNodeReuse.ToString().ToLower()} /low:{ComponentHost.BuildParameters.LowPriority.ToString().ToLower()}";
// Make it here.
CommunicationsUtilities.Trace("Starting to acquire a new or existing node to establish node ID {0}...", nodeId);
long hostHandShake = NodeProviderOutOfProc.GetHostHandshake(ComponentHost.BuildParameters.EnableNodeReuse, ComponentHost.BuildParameters.LowPriority);
NodeContext context = GetNode(null, commandLineArgs, nodeId, factory, hostHandShake, NodeProviderOutOfProc.GetClientHandshake(ComponentHost.BuildParameters.EnableNodeReuse, ComponentHost.BuildParameters.LowPriority), NodeContextTerminated);
if (null != context)
{
_nodeContexts[nodeId] = context;
// Start the asynchronous read.
context.BeginAsyncPacketRead();
// Configure the node.
context.SendData(configuration);
return(true);
}
throw new BuildAbortedException(ResourceUtilities.FormatResourceStringStripCodeAndKeyword("CouldNotConnectToMSBuildExe", ComponentHost.BuildParameters.NodeExeLocation));
}