/// <summary>
/// The TaskExecutionModule is a the external view into a subsystem responsible for executing user
/// tasks. The subsystem consists of TaskWorkerThread, TaskEngine, TaskExecutionState and EngineProxy.
/// The engine thread passes the TaskExecutionState to the TEM which after the task finishes passes the
/// results back via the engineCallback.
/// </summary>
internal TaskExecutionModule
(
EngineCallback engineCallback,
TaskExecutionModuleMode moduleMode,
bool profileExecution
)
{
this.engineCallback = engineCallback;
this.moduleMode = moduleMode;
// By default start in breadthFirst traversal. This is done to gather enough work at the start of the build to get all the nodes at least working on something.
this.breadthFirstTraversal = true;
this.profileExecution = profileExecution;
this.totalTaskTime = 0;
// Get the node the TEM is running on, this is so the parent engine knows which node is requesting a traversal strategy change.
nodeId = engineCallback.GetParentEngine().NodeId;
SetBatchRequestSize();
// In singleproc mode the task execution module executes tasks on the engine thread. In multi proc mode a new thread is
// created so the TEM can submit tasks to a worker queue which will run the tasks on a new thread.
if (moduleMode != TaskExecutionModuleMode.SingleProcMode)
{
this.isRunningMultipleNodes = true;
this.activeThreadCount = 0;
this.overallThreadCount = 0;
this.threadActiveCountEvent = new ManualResetEvent(false);
this.threadOverallCountEvent = new ManualResetEvent(false);
this.lastTaskActivity = 0;
// Create a worker thread and make it the active node thread
workerThread = new TaskWorkerThread(this, profileExecution);
workerThread.ActivateThread();
}
else
{
this.isRunningMultipleNodes = false;
}
}
/// <summary>
/// The TaskExecutionModule is a the external view into a subsystem responsible for executing user
/// tasks. The subsystem consists of TaskWorkerThread, TaskEngine, TaskExecutionState and EngineProxy.
/// The engine thread passes the TaskExecutionState to the TEM which after the task finishes passes the
/// results back via the engineCallback.
/// </summary>
internal TaskExecutionModule
(
EngineCallback engineCallback,
TaskExecutionModuleMode moduleMode,
bool profileExecution
)
{
this.engineCallback = engineCallback;
this.moduleMode = moduleMode;
// By default start in breadthFirst traversal. This is done to gather enough work at the start of the build to get all the nodes at least working on something.
this.breadthFirstTraversal = true;
this.profileExecution = profileExecution;
this.totalTaskTime = 0;
// Get the node the TEM is running on, this is so the parent engine knows which node is requesting a traversal strategy change.
nodeId = engineCallback.GetParentEngine().NodeId;
SetBatchRequestSize();
// In singleproc mode the task execution module executes tasks on the engine thread. In multi proc mode a new thread is
// created so the TEM can submit tasks to a worker queue which will run the tasks on a new thread.
if (moduleMode != TaskExecutionModuleMode.SingleProcMode)
{
this.isRunningMultipleNodes = true;
this.activeThreadCount = 0;
this.overallThreadCount = 0;
this.threadActiveCountEvent = new ManualResetEvent(false);
this.threadOverallCountEvent = new ManualResetEvent(false);
this.lastTaskActivity = 0;
// Create a worker thread and make it the active node thread
workerThread = new TaskWorkerThread(this, profileExecution);
workerThread.ActivateThread();
}
else
{
this.isRunningMultipleNodes = false;
}
}