Technologies for detecting erroneous resumptions in a continuation based runtime

• US 8,255,451 B2
• Filed: 09/17/2008
• Issued: 08/28/2012
• 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:
  US12/211,953
• Publication Number:
  US 20100070806A1
• Time in Patent Office: 1,441 Days
• Field of Search: 709/200, 709/201, 714/147, 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 of handling a request to resume a conversation continuation, the method comprising:

receiving, by a processor, the request from an external service to resume the conversation continuation;

determining, by the processor, if a conversation is stable, the conversation being associated with the conversation continuation referred to by the request, wherein the request to resume the conversation continuation is associated with an activity that has no process affinity, no thread affinity, and can be persistent;

accepting the request and resuming the conversation, by the processor, in response to determining that the conversation continuation exists;

otherwise, rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is stable; and

otherwise, delaying the handling of the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that a particular amount of time has not transpired between the receiving the request and the accepting or the rejecting the request.

2. The method of claim 1 further comprising rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that the particular amount of time has transpired.

3. The method of claim 1 further comprising delaying the handling of the request until a conversation continuation is created by the activity that is referred to by the request.

4. The method of claim 1 further comprising delaying the handling of the request until the conversation becomes stable.

5. The method of claim 1 wherein accepting the request comprises continuing execution of the activity.

6. The method of claim 1 wherein rejecting the request comprises returning a failure message to the external service making the request.

7. The method of claim 1 wherein the determining that the conversation is unstable comprises determining that a non-conversation continuation exists that is associated with the activity.

8. The method of claim 1 wherein the determining that the conversation is unstable comprises determining that a governing continuation exists that is associated with the activity.

9. At least one storage device storing computer executable instructions that, when executed by a processor, cause the processor to perform a method of handling a request to resume a conversation continuation, the method comprising:

receiving the request from an external service to resume the conversation continuation;

determining if a conversation is stable, the conversation being associated with the conversation continuation referred to by the request, wherein the request to resume the conversation continuation is associated with an activity that has no process affinity, no thread affinity, and can be persistent;

accepting the request and resuming the conversation in response to determining that the conversation continuation exists;

otherwise, rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is stable; and

otherwise, delaying the handling of the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that a particular amount of time has not transpired between the receiving the request and the accepting or the rejecting the request.

10. The at least one storage device of claim 9, the method further comprising rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that the particular amount of time has transpired.

11. The at least one storage device of claim 9, the method further comprising delaying the handling of the request until a conversation continuation is created by the activity that is referred to by the request.

12. The at least one storage device of claim 9, the method further comprising delaying the handling of the request until the conversation becomes stable.

13. The at least one storage device of claim 9 wherein the determining that the conversation is unstable comprises determining that a non-conversation continuation exists that is associated with the activity.

14. The at least one storage device of claim 9 wherein the determining that the conversation is unstable comprises determining that a governing continuation exists that is associated with the activity.

15. A system for handling a request to resume a conversation continuation, the system comprising:

a processor;

the processor configured for receiving a request to resume a conversation from an external service;

the processor further configured for determining if a conversation is stable, the conversation being associated with the conversation continuation referred to by the request, wherein the request to resume the conversation continuation is associated with an activity that has no process affinity, no thread affinity, and can be persistent;

the processor further configured for accepting the request and resuming the conversation in response to determining that the conversation continuation exists;

the processor further configured for otherwise rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is stable; and

the processor further configured for otherwise delaying the handling of the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that a particular amount of time has not transpired between arrival of the request and accepting or rejecting the request.

16. The at least one storage device of claim 15, the method further comprising rejecting the request in response to determining that the conversation continuation does not exist and that the conversation associated with the conversation continuation is unstable and that the particular amount of time has transpired.

17. The at least one storage device of claim 15, the method further comprising delaying the handling of the request until a conversation continuation is created by the activity that is referred to by the request.

18. The at least one storage device of claim 15, the method further comprising delaying the handling of the request until the conversation becomes stable.

19. The at least one storage device of claim 15 wherein the determining that the conversation is unstable comprises determining that a non-conversation continuation exists that is associated with the activity.

20. The at least one storage device of claim 15 wherein the determining that the conversation is unstable comprises determining that a governing continuation exists that is associated with the activity.