/// <summary>
/// Constructor.
/// </summary>
public SchedulingEvent(DateTime eventTime, SchedulableRequest request, SchedulableRequestState oldState, SchedulableRequestState newState)
{
_eventTime = eventTime;
_request = request;
_oldState = oldState;
_newState = newState;
}
/// <summary>
/// Change to the specified state. Update internal counters.
/// </summary>
private void ChangeToState(SchedulableRequestState newState)
{
DateTime currentTime = DateTime.UtcNow;
_timeRecords[_state].EndState(currentTime);
_timeRecords[newState].StartState(currentTime);
if (_state != newState)
{
SchedulableRequestState previousState = _state;
_state = newState;
_schedulingData.UpdateFromState(this, previousState);
}
}
/// <summary>
/// Verifies that the request is scheduled and in the expected state.
/// </summary>
private void ExpectScheduledRequestState(int globalRequestId, SchedulableRequestState state)
{
SchedulableRequest request = InternalGetScheduledRequestByGlobalRequestId(globalRequestId);
if (request == null)
{
ErrorUtilities.ThrowInternalError("Request {0} was expected to be in state {1} but is not scheduled at all (it may be unscheduled or may be unknown to the system.)", globalRequestId, state);
}
else
{
request.VerifyState(state);
}
}
/// <summary>
/// Change to the specified state. Update internal counters.
/// </summary>
private void ChangeToState(SchedulableRequestState newState)
{
DateTime currentTime = DateTime.UtcNow;
_timeRecords[_state].EndState(currentTime);
_timeRecords[newState].StartState(currentTime);
if (_state != newState)
{
SchedulableRequestState previousState = _state;
_state = newState;
_schedulingData.UpdateFromState(this, previousState);
}
}
/// <summary>
/// Verifies that the current state is as expected.
/// </summary>
public void VerifyOneOfStates(SchedulableRequestState[] requiredStates)
{
foreach (SchedulableRequestState requiredState in requiredStates)
{
if (_state == requiredState)
{
return;
}
}
ErrorUtilities.ThrowInternalError("State {0} is not one of the expected states.", _state);
}
/// <summary>
/// Verifies that the current state is as expected.
/// </summary>
public void VerifyState(SchedulableRequestState requiredState)
{
ErrorUtilities.VerifyThrow(_state == requiredState, "Request {0} expected to be in state {1} but state is actually {2}", _request.GlobalRequestId, requiredState, _state);
}
/// <summary>
/// Gets the amount of time we spent in the specified state.
/// </summary>
public TimeSpan GetTimeSpentInState(SchedulableRequestState desiredState)
{
return _timeRecords[desiredState].AccumulatedTime;
}
/// <summary>
/// Verifies that the current state is as expected.
/// </summary>
public void VerifyState(SchedulableRequestState requiredState)
{
ErrorUtilities.VerifyThrow(_state == requiredState, "Request {0} expected to be in state {1} but state is actually {2}", _request.GlobalRequestId, requiredState, _state);
}
/// <summary>
/// Gets the amount of time we spent in the specified state.
/// </summary>
public TimeSpan GetTimeSpentInState(SchedulableRequestState desiredState)
{
return(_timeRecords[desiredState].AccumulatedTime);
}
/// <summary>
/// Updates the state of the specified request.
/// </summary>
public void UpdateFromState(SchedulableRequest request, SchedulableRequestState previousState)
{
// Remove from its old collection
switch (previousState)
{
case SchedulableRequestState.Blocked:
_blockedRequests.Remove(request.BuildRequest.GlobalRequestId);
break;
case SchedulableRequestState.Yielding:
_yieldingRequests.Remove(request.BuildRequest.GlobalRequestId);
break;
case SchedulableRequestState.Completed:
ErrorUtilities.ThrowInternalError("Should not be updating a request after it has reached the Completed state.");
break;
case SchedulableRequestState.Executing:
_executingRequests.Remove(request.BuildRequest.GlobalRequestId);
_executingRequestByNode[request.AssignedNode] = null;
break;
case SchedulableRequestState.Ready:
_readyRequests.Remove(request.BuildRequest.GlobalRequestId);
_readyRequestsByNode[request.AssignedNode].Remove(request);
break;
case SchedulableRequestState.Unscheduled:
LinkedListNode <SchedulableRequest> requestNode = _unscheduledRequestNodesByRequest[request];
_unscheduledRequestNodesByRequest.Remove(request);
_unscheduledRequests.Remove(requestNode);
if (request.State != SchedulableRequestState.Completed)
{
// Map the request to the node.
HashSet <SchedulableRequest> requestsAssignedToNode;
if (!_scheduledRequestsByNode.TryGetValue(request.AssignedNode, out requestsAssignedToNode))
{
requestsAssignedToNode = new HashSet <SchedulableRequest>();
_scheduledRequestsByNode[request.AssignedNode] = requestsAssignedToNode;
}
ErrorUtilities.VerifyThrow(!requestsAssignedToNode.Contains(request), "Request {0} is already scheduled to node {1}", request.BuildRequest.GlobalRequestId, request.AssignedNode);
requestsAssignedToNode.Add(request);
// Map the configuration to the node.
HashSet <int> configurationsAssignedToNode;
if (!_configurationsByNode.TryGetValue(request.AssignedNode, out configurationsAssignedToNode))
{
configurationsAssignedToNode = new HashSet <int>();
_configurationsByNode[request.AssignedNode] = configurationsAssignedToNode;
}
if (!configurationsAssignedToNode.Contains(request.BuildRequest.ConfigurationId))
{
configurationsAssignedToNode.Add(request.BuildRequest.ConfigurationId);
}
}
break;
}
// Add it to its new location
switch (request.State)
{
case SchedulableRequestState.Blocked:
ErrorUtilities.VerifyThrow(!_blockedRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already blocked!");
_blockedRequests[request.BuildRequest.GlobalRequestId] = request;
break;
case SchedulableRequestState.Yielding:
ErrorUtilities.VerifyThrow(!_yieldingRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already yielded!");
_yieldingRequests[request.BuildRequest.GlobalRequestId] = request;
break;
case SchedulableRequestState.Completed:
ErrorUtilities.VerifyThrow(_configurationToRequests.ContainsKey(request.BuildRequest.ConfigurationId), "Configuration {0} never had requests assigned to it.", request.BuildRequest.ConfigurationId);
ErrorUtilities.VerifyThrow(_configurationToRequests[request.BuildRequest.ConfigurationId].Count > 0, "Configuration {0} has no requests assigned to it.", request.BuildRequest.ConfigurationId);
_configurationToRequests[request.BuildRequest.ConfigurationId].Remove(request);
if (_scheduledRequestsByNode.ContainsKey(request.AssignedNode))
{
_scheduledRequestsByNode[request.AssignedNode].Remove(request);
}
request.EndTime = EventTime;
break;
case SchedulableRequestState.Executing:
ErrorUtilities.VerifyThrow(!_executingRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already executing!");
ErrorUtilities.VerifyThrow(!_executingRequestByNode.ContainsKey(request.AssignedNode) || _executingRequestByNode[request.AssignedNode] == null, "Node {0} is currently executing a request.", request.AssignedNode);
_executingRequests[request.BuildRequest.GlobalRequestId] = request;
_executingRequestByNode[request.AssignedNode] = request;
_configurationToNode[request.BuildRequest.ConfigurationId] = request.AssignedNode;
if (previousState == SchedulableRequestState.Unscheduled)
{
request.StartTime = EventTime;
}
break;
case SchedulableRequestState.Ready:
ErrorUtilities.VerifyThrow(!_readyRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already ready!");
_readyRequests[request.BuildRequest.GlobalRequestId] = request;
HashSet <SchedulableRequest> readyRequestsOnNode;
if (!_readyRequestsByNode.TryGetValue(request.AssignedNode, out readyRequestsOnNode))
{
readyRequestsOnNode = new HashSet <SchedulableRequest>();
_readyRequestsByNode[request.AssignedNode] = readyRequestsOnNode;
}
ErrorUtilities.VerifyThrow(!readyRequestsOnNode.Contains(request), "Request with global id {0} is already marked as ready on node {1}", request.BuildRequest.GlobalRequestId, request.AssignedNode);
readyRequestsOnNode.Add(request);
break;
case SchedulableRequestState.Unscheduled:
ErrorUtilities.ThrowInternalError("Request with global id {0} cannot transition to the Unscheduled state", request.BuildRequest.GlobalRequestId);
break;
}
_buildEvents.Add(new SchedulingEvent(EventTime, request, previousState, request.State));
}
/// <summary>
/// Constructor.
/// </summary>
public SchedulingEvent(DateTime eventTime, SchedulableRequest request, SchedulableRequestState oldState, SchedulableRequestState newState)
{
_eventTime = eventTime;
_request = request;
_oldState = oldState;
_newState = newState;
}
/// <summary>
/// Verifies that the request is scheduled and in the expected state.
/// </summary>
private void ExpectScheduledRequestState(int globalRequestId, SchedulableRequestState state)
{
SchedulableRequest request = InternalGetScheduledRequestByGlobalRequestId(globalRequestId);
if (request == null)
{
ErrorUtilities.ThrowInternalError("Request {0} was expected to be in state {1} but is not scheduled at all (it may be unscheduled or may be unknown to the system.)", globalRequestId, state);
}
else
{
request.VerifyState(state);
}
}
/// <summary>
/// Updates the state of the specified request.
/// </summary>
public void UpdateFromState(SchedulableRequest request, SchedulableRequestState previousState)
{
// Remove from its old collection
switch (previousState)
{
case SchedulableRequestState.Blocked:
_blockedRequests.Remove(request.BuildRequest.GlobalRequestId);
break;
case SchedulableRequestState.Yielding:
_yieldingRequests.Remove(request.BuildRequest.GlobalRequestId);
break;
case SchedulableRequestState.Completed:
ErrorUtilities.ThrowInternalError("Should not be updating a request after it has reached the Completed state.");
break;
case SchedulableRequestState.Executing:
_executingRequests.Remove(request.BuildRequest.GlobalRequestId);
_executingRequestByNode[request.AssignedNode] = null;
break;
case SchedulableRequestState.Ready:
_readyRequests.Remove(request.BuildRequest.GlobalRequestId);
_readyRequestsByNode[request.AssignedNode].Remove(request);
break;
case SchedulableRequestState.Unscheduled:
LinkedListNode<SchedulableRequest> requestNode = _unscheduledRequestNodesByRequest[request];
_unscheduledRequestNodesByRequest.Remove(request);
_unscheduledRequests.Remove(requestNode);
if (request.State != SchedulableRequestState.Completed)
{
// Map the request to the node.
HashSet<SchedulableRequest> requestsAssignedToNode;
if (!_scheduledRequestsByNode.TryGetValue(request.AssignedNode, out requestsAssignedToNode))
{
requestsAssignedToNode = new HashSet<SchedulableRequest>();
_scheduledRequestsByNode[request.AssignedNode] = requestsAssignedToNode;
}
ErrorUtilities.VerifyThrow(!requestsAssignedToNode.Contains(request), "Request {0} is already scheduled to node {1}", request.BuildRequest.GlobalRequestId, request.AssignedNode);
requestsAssignedToNode.Add(request);
// Map the configuration to the node.
HashSet<int> configurationsAssignedToNode;
if (!_configurationsByNode.TryGetValue(request.AssignedNode, out configurationsAssignedToNode))
{
configurationsAssignedToNode = new HashSet<int>();
_configurationsByNode[request.AssignedNode] = configurationsAssignedToNode;
}
if (!configurationsAssignedToNode.Contains(request.BuildRequest.ConfigurationId))
{
configurationsAssignedToNode.Add(request.BuildRequest.ConfigurationId);
}
}
break;
}
// Add it to its new location
switch (request.State)
{
case SchedulableRequestState.Blocked:
ErrorUtilities.VerifyThrow(!_blockedRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already blocked!");
_blockedRequests[request.BuildRequest.GlobalRequestId] = request;
break;
case SchedulableRequestState.Yielding:
ErrorUtilities.VerifyThrow(!_yieldingRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already yielded!");
_yieldingRequests[request.BuildRequest.GlobalRequestId] = request;
break;
case SchedulableRequestState.Completed:
ErrorUtilities.VerifyThrow(_configurationToRequests.ContainsKey(request.BuildRequest.ConfigurationId), "Configuration {0} never had requests assigned to it.", request.BuildRequest.ConfigurationId);
ErrorUtilities.VerifyThrow(_configurationToRequests[request.BuildRequest.ConfigurationId].Count > 0, "Configuration {0} has no requests assigned to it.", request.BuildRequest.ConfigurationId);
_configurationToRequests[request.BuildRequest.ConfigurationId].Remove(request);
if (_scheduledRequestsByNode.ContainsKey(request.AssignedNode))
{
_scheduledRequestsByNode[request.AssignedNode].Remove(request);
}
request.EndTime = EventTime;
break;
case SchedulableRequestState.Executing:
ErrorUtilities.VerifyThrow(!_executingRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already executing!");
ErrorUtilities.VerifyThrow(!_executingRequestByNode.ContainsKey(request.AssignedNode) || _executingRequestByNode[request.AssignedNode] == null, "Node {0} is currently executing a request.", request.AssignedNode);
_executingRequests[request.BuildRequest.GlobalRequestId] = request;
_executingRequestByNode[request.AssignedNode] = request;
_configurationToNode[request.BuildRequest.ConfigurationId] = request.AssignedNode;
if (previousState == SchedulableRequestState.Unscheduled)
{
request.StartTime = EventTime;
}
break;
case SchedulableRequestState.Ready:
ErrorUtilities.VerifyThrow(!_readyRequests.ContainsKey(request.BuildRequest.GlobalRequestId), "Request with global id {0} is already ready!");
_readyRequests[request.BuildRequest.GlobalRequestId] = request;
HashSet<SchedulableRequest> readyRequestsOnNode;
if (!_readyRequestsByNode.TryGetValue(request.AssignedNode, out readyRequestsOnNode))
{
readyRequestsOnNode = new HashSet<SchedulableRequest>();
_readyRequestsByNode[request.AssignedNode] = readyRequestsOnNode;
}
ErrorUtilities.VerifyThrow(!readyRequestsOnNode.Contains(request), "Request with global id {0} is already marked as ready on node {1}", request.BuildRequest.GlobalRequestId, request.AssignedNode);
readyRequestsOnNode.Add(request);
break;
case SchedulableRequestState.Unscheduled:
ErrorUtilities.ThrowInternalError("Request with global id {0} cannot transition to the Unscheduled state", request.BuildRequest.GlobalRequestId);
break;
}
_buildEvents.Add(new SchedulingEvent(EventTime, request, previousState, request.State));
}