/// <summary>
/// Connects to the master and enables this node to receive build requests
/// </summary>
/// <param name="schedule">the engine schedule</param>
/// <returns>true if the operation was successful</returns>
internal async Task <bool> ConnectToMasterAsync(EngineSchedule schedule)
{
Contract.Requires(schedule != null);
Contract.Requires(schedule.Scheduler != null);
Contract.Requires(schedule.SchedulingQueue != null);
Contract.Assert(AttachCompletion.IsCompleted && AttachCompletion.GetAwaiter().GetResult(), "ProcessBuildRequests called before finishing attach on worker");
m_workerPipStateManager = new WorkerServicePipStateManager(this);
m_pipTable = schedule.PipTable;
m_pipQueue = schedule.SchedulingQueue;
m_scheduler = schedule.Scheduler;
m_operationTracker = m_scheduler.OperationTracker;
m_environment = m_scheduler;
m_environment.ContentFingerprinter.FingerprintSalt = BuildStartData.FingerprintSalt;
m_environment.State.PipEnvironment.MasterEnvironmentVariables = BuildStartData.EnvironmentVariables;
m_resultSerializer = new ExecutionResultSerializer(maxSerializableAbsolutePathIndex: schedule.MaxSerializedAbsolutePath, executionContext: m_scheduler.Context);
m_forwardingEventListener = new ForwardingEventListener(this);
bool success = await SendAttachCompletedAfterProcessBuildRequestStartedAsync();
// Wait until the build finishes or we discovered that the master is dead
success &= await ExitCompletion;
success &= !m_hasFailures;
if (m_masterFailureMessage != null)
{
Logger.Log.DistributionWorkerExitFailure(m_appLoggingContext, m_masterFailureMessage);
}
m_pipQueue.SetAsFinalized();
return(success);
}
internal void Start(EngineSchedule schedule)
{
Contract.Requires(schedule != null);
Contract.Requires(schedule.Scheduler != null);
Contract.Requires(schedule.SchedulingQueue != null);
Contract.Assert(AttachCompletion.IsCompleted && AttachCompletion.GetAwaiter().GetResult(), "ProcessBuildRequests called before finishing attach on worker");
m_workerPipStateManager = new WorkerServicePipStateManager(this);
m_pipTable = schedule.PipTable;
m_pipQueue = schedule.SchedulingQueue;
m_scheduler = schedule.Scheduler;
m_operationTracker = m_scheduler.OperationTracker;
m_environment = m_scheduler;
m_environment.ContentFingerprinter.FingerprintSalt = BuildStartData.FingerprintSalt;
m_environment.State.PipEnvironment.MasterEnvironmentVariables = BuildStartData.EnvironmentVariables;
m_resultSerializer = new ExecutionResultSerializer(maxSerializableAbsolutePathIndex: schedule.MaxSerializedAbsolutePath, executionContext: m_scheduler.Context);
m_forwardingEventListener = new ForwardingEventListener(this);
}
/// <summary>
/// Connects to the master and enables this node to receive build requests
/// </summary>
internal async Task <bool> WhenDoneAsync()
{
Contract.Assert(AttachCompletion.IsCompleted && AttachCompletion.GetAwaiter().GetResult(), "ProcessBuildRequests called before finishing attach on worker");
bool success = await SendAttachCompletedAfterProcessBuildRequestStartedAsync();
// Wait until the build finishes or we discovered that the master is dead
success &= await ExitCompletion;
success &= !m_hasFailures;
if (m_masterFailureMessage != null)
{
Logger.Log.DistributionWorkerExitFailure(m_appLoggingContext, m_masterFailureMessage);
}
m_pipQueue.SetAsFinalized();
return(success);
}
/// <summary>
/// Waits for the master to attach synchronously
/// </summary>
internal bool WaitForMasterAttach()
{
Logger.Log.DistributionWaitingForMasterAttached(m_appLoggingContext);
while (!AttachCompletion.Wait(EngineEnvironmentSettings.WorkerAttachTimeout))
{
if ((TimestampUtilities.Timestamp - m_lastHeartbeatTimestamp) > EngineEnvironmentSettings.WorkerAttachTimeout)
{
Exit(failure: "Timed out waiting for attach request from master", isUnexpected: true);
return(false);
}
}
if (!AttachCompletion.Result)
{
Logger.Log.DistributionInactiveMaster(m_appLoggingContext, (int)EngineEnvironmentSettings.WorkerAttachTimeout.Value.TotalMinutes);
return(false);
}
return(true);
}
