Technologies for detecting erroneous resumptions in a continuation based runtime

• US 8,620,991 B2
• Filed: 08/01/2012
• Issued: 12/31/2013
• Est. Priority Date: 09/17/2008
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Wolf, Kenneth David, Brown, Justin David, Raman, Karthik, Talbert, Nathan Christopher, Pinto, Edmund Samuel Victor
• Primary Examiner(s): Follansbee, John
• Assistant Examiner(s): Mejia, Anthony
• Application Number:
  US13/564,498
• Publication Number:
  US 20120297077A1
• Time in Patent Office: 517 Days
• Field of Search: 709/200, 709/201, 709/227, 714/201, 719/311, 719/312, 719/313, 719/318, 710/260, 717/148, 717/149, 717/153
• US Class Current: 709/201
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066

Abstract

Technologies for enabling a continuation based runtime to accept or reject external stimulus and, in addition, to determine if an external stimulus may be valid for processing at a later point in execution.

Claims

1. A method performed on a computing device, the method comprising:

rejecting, in response to a conversation continuation not existing on a system and a non-conversation continuation or a governing continuation existing on the system, a request to resume the conversation continuation, where the conversation continuation is configured for resuming an activity in response to a message from an external service that is engaged in a conversation with the activity, where the non-conversation continuation is configured for resuming the activity in response to a message indicating completion of an operation associated with the activity, where the governing continuation is configured for controlling continued execution of dependent continuations, and where the conversation continuation and the non-conversation continuation are included in a continuation list;

delaying, in response to the conversation continuation not existing on the system and no non-conversation continuations or governing continuations existing on the system, handling of the request to resume the conversation continuation; and

accepting, in response to the conversation continuation existing on the system, the request to resume the conversation continuation.

2. The method of claim 1 where the conversation continuation is a continuation associated with the conversation between the activity and the external service.

3. The method of claim 1 where the non-conversation continuations are continuations that are controlled by activities that perform blocking operations.

4. The method of claim 1 where the governing continuations are continuations on which other continuations depend.

5. The method of claim 1 where the method is performed in the context of the activity when the activity is idle.

6. The method of claim 1 where the accepting comprises resuming the conversation continuation.

7. The method of claim 6 where the resuming comprises providing information to the activity, the information provided by a service that submitted the request to resume the conversation continuation.

8. At least one storage device storing computer executable instructions that, when executed by a computing device, cause the computing device to perform actions for handling a request to resume a conversation continuation, the actions comprising:

rejecting, in response to a conversation continuation not existing on a system and a non-conversation continuation or a governing continuation existing on the system, a request to resume the conversation continuation, where the conversation continuation is configured for resuming an activity in response to a message from an external service that is engaged in a conversation with the activity, where the non-conversation continuation is configured for resuming the activity in response to a message indicating completion of an operation associated with the activity, where the governing continuation is configured for controlling continued execution of dependent continuations, and where the conversation continuation and the non-conversation continuation are included in a continuation list;

delaying, in response to the conversation continuation not existing on the system and no non-conversation continuations or governing continuations existing on the system, handling of the request to resume the conversation continuation; and

accepting, in response to the conversation continuation existing on the system, the request to resume the conversation continuation.

9. The at least one storage device of claim 8 where the conversation continuation is a continuation associated with the conversation between the activity and the external service.

10. The at least one storage device of claim 8 where the non-conversation continuations are continuations that are controlled by activities that perform blocking operations.

11. The at least one storage device of claim 8 where the governing continuations are continuations on which other continuations depend.

12. The at least one storage device of claim 8 where the method is performed in the context of the activity when the activity is idle.

13. The at least one storage device of claim 8 where the accepting comprises resuming the conversation continuation.

14. The at least one storage device of claim 13 where the resuming comprises providing information to the activity, the information provided by a service that submitted the request to resume the conversation continuation.

15. A system comprising:

a computing device including a hardware processor configured for rejecting, in response to a conversation continuation not existing on the system and a non-conversation continuation or a governing continuation existing on the system, a request to resume the conversation continuation, where the conversation continuation is configured for resuming an activity in response to a message from an external service that is engaged in a conversation with the activity, where the non-conversation continuation is configured for resuming the activity in response to a message indicating completion of an operation associated with the activity, where the governing continuation is configured for controlling continued execution of dependent continuations, and where the conversation continuation and the non-conversation continuation are included in a continuation list;

the computing device further configured for delaying, in response to the conversation continuation not existing on the system and no non-conversation continuations or governing continuations existing on the system, handling of the request to resume the conversation continuation; and

the computing device further configured for accepting, in response to the conversation continuation existing on the system, the request to resume the conversation continuation.

16. The system of claim 15 where the conversation continuation is a continuation associated with the conversation between the activity and the external service.

17. The system of claim 15 where the non-conversation continuations are continuations that are controlled by activities that perform blocking operations.

18. The system of claim 15 where the governing continuations are continuations on which other continuations depend.

19. The system of claim 15 where the accepting comprises resuming the conversation continuation.

20. The system of claim 19 where the resuming comprises providing information to the activity, the information provided by a service that submitted the request to resume the conversation continuation.