Method and system for delayed registration of protocols

• US 6,208,952 B1
• Filed: 10/24/1996
• Issued: 03/27/2001
• Est. Priority Date: 10/24/1996
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Hill, Richard D., Shah, Bharat, Goertzel, Mario C., Mitchell, Alexander A.
• Primary Examiner(s): Harrell, Robert B.
• Assistant Examiner(s): VU, THONG H
• Application Number:
  US08/738,432
• Time in Patent Office: 1,615 Days
• Field of Search: 395/650, 395/200.57, 395/200.03, 395/200.33, 395/325, 395/500, 395/700, 395/856, 370/54, 370/60, 370/94.1, 370/469, 370/95.1, 371/32, 709/228, 709/213, 709/203, 709/236, 358/402
• US Class Current: 709/230
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method and system for delayed registration of a remote protocol for communicating between a client computer system and a server computer system. The server computer system has a communications process that registers a plurality of protocols. When the client process needs to communicate with the server process, it sends a request to the communications process along with an indication of the protocols that it supports. The communications process selects a protocol that is supported by both the client computer system and the server computer system and directs the server process to register that protocol. The communication process provides the server endpoint for that protocol to the client process which can then communicate directly with the server process.

Claims

1. A method for delaying registration of a protocol for communicating between a client process and a server process on a computer system until requested by the client process, the computer system having a communications process, the method comprising:

registering for the communications process a protocol at a communications endpoint;

sending to the client process an identification of the registered protocol;

receiving from the client process via the communications endpoint an indication that the client process is to communicate with the server process and an indication that the client process supports the protocol registered for the communications process; and

in response to receiving the indications, registering for the server process the protocol at a server endpoint.

2. The method of claim 1 wherein the communications endpoint is predefined.

3. The method of claim 1 wherein the sending of the identification of the registered protocol includes sending an identification of the communications endpoint.

4. The method of claim 1 wherein the server process and the client process execute on different computer systems.

5. The method of claim 1 wherein the communications process and the server process execute on different computer systems.

6. The method of claim 1 wherein the registering of the protocol includes registering a plurality of protocols supported by the communications process.

7. The method of claim 1 wherein the receiving from the client process via the communications endpoint includes receiving an indication of a protocol supported by the client process.

8. The method of claim 1 wherein the communications process caches an identification of endpoints for protocols registered by the server process.

9. A method for delayed registration of a protocol for communicating between a client process and a server process on a computer system when requested by the client process, the computer system having a communications process, the method comprising:

registering for the communications process a plurality of protocols at communications endpoints;

sending to the client process identifications of the registered protocols;

receiving from the client process via a communications endpoint an indication that the client process is to communicate with the server process and an identification of one or more protocols supported by the client; and

in response to receiving the indication,

selecting one of the identified protocols supported by the client process that is registered for the communications process; and

registering for the server process the selected protocol at a server endpoint.

10. The method of claim 9 including sending to the server process an identification of the server endpoint.

11. The method of claim 9 wherein the server endpoint is wellknown to the client process.

12. The method of claim 9 wherein the communications process caches an identification of the server endpoint so that when a subsequent indication is received from a client process to communicate with the server process using the protocol, the communications process can retrieve the identification of the server endpoint from the cache.

13. A method in a computer system for delayed registration of protocols for server processes, the method comprising:

executing a communications process that registers a communications protocol at a communications endpoint;

executing a plurality of server processes wherein each server process registers a protocol for communication with the communications process;

receiving at the communications endpoint a request from a client process to communicate with a server process over a specified protocol; and

in response to receiving the request,

directing the server process to register the specified protocol;

registering the specified protocol for the server process; and

notifying the client process that it can communicate with the server process using the specified protocol.

14. The method of claim 13 wherein after receiving the notification the client process communicates with the server process via the specified protocol over a predefined endpoint.

15. The method of claim 13 wherein when notifying the client process, the communications process provides an identification of an endpoint of the server process allocated to the specified protocol.

16. The method of claim 13 wherein the client process identifies the server process by specifying an interface implemented by the server process.

17. The method of claim 13 wherein the client process identifies the server process by specifying a unique identification of the server process.

18. The method of claim 13 wherein when another client process requests communication with the same server process using the specified protocol, the communication process notifies the client process without directing the server process to re-register the protocol.

19. The method of claim 13 wherein the client process provides a plurality of specified protocols and the communications process selects a specified protocol that is supported by the server process.

20. A computer-readable medium containing instructions for causing a computer system to delay registration of protocols for server processes, by:

executing a communications process that registers a communications protocol at a communications endpoint;

executing a plurality of server processes wherein each server process registers a protocol for communication with the communications process;

receiving at the communications endpoint a request from a client process to communicate with a server process over a specified protocol; and

in response to receiving the request,

directing the server process to register the specified protocol;

registering the specified protocol for the server process; and

notifying the client process that it can communicate with the server process using the specified protocol.

21. The computer-readable medium of claim 20 wherein after receiving the notification the client process communicates with the server process via the specified protocol over a predefined endpoint.

22. The computer-readable medium of claim 20 wherein when notifying the client process, the communications process provides an identification of an endpoint of the server process allocated to the specified protocol.

23. The computer-readable medium of claim 20 wherein the client process identifies the server process by specifying an interface implemented by the server process.

24. The computer-readable medium of claim 20 wherein the client process identifies the server process by specifying a unique identification of the server process.

25. The computer-readable medium of claim 20 wherein when another client process requests communication with the same server process using the specified protocol, the communication process notifies the client process without directing the server process to re-register the protocol.

26. The computer-readable medium of claim 20 wherein the client process provides a plurality of specified protocols and the communications process selects a specified protocol that is supported by the server process.

27. A computer-readable medium containing instructions for delaying registration of a protocol for communicating between a client process and a server process on a computer system until requested by the client process, the computer system having a communications process, by:

registering for the communications process a protocol at a communications endpoint;

sending from the server process to the client process an identification of the registered protocol;

receiving from the client process via the communications endpoint an indication that the client process is to communicate with the server process and an indication that the client process supports the protocol registered for the communications process; and

registering for the server process the protocol at a server endpoint.

28. The computer-readable medium of claim 27 wherein the communications endpoint is predefined.

29. The computer-readable medium of claim 27 wherein the sending of the identification of the registered protocol includes sending an identification of the communications endpoint.

30. The computer-readable medium of claim 27 wherein the server process and the client process execute on different computer systems.

31. The computer-readable medium of claim 27 wherein the communications process and the server process execute on different computer systems.

32. The method of claim 27 wherein the registering of the protocol includes registering a plurality of protocols supported by the communications process.

33. A computer system for delayed registration of a protocol, the computer system comprising:

a communications component that registers a plurality of protocols, that receives requests using a registered protocol from clients to communicate with servers using a designated protocol, that in response to receiving the requests, directs servers to register the designated protocol, and that notifies the clients that they can communicate with the servers; and

a server component that receives a directive from the communications component to register a designated protocol and registers the designated protocol to effect the delayed registration of the designated protocol.

34. The computer system of claim 33 wherein the communications component receives a plurality of designated protocols, selects one of the designated protocols, and directs the server component to register the selected protocol.

35. A method in a computer system for delayed registration of a protocol by a first process, the method comprising:

registering a first protocol that is supported by a second process;

receiving from the second process a request for the first process to register a second protocol, the request being sent in the registered first protocol; and

in response to receiving the request, registering the second protocol for the first process whereby the registration of the second protocol is delayed until requested by the second process.

36. The method of claim 35 including after registration of the second protocol, communicating between the first and second processes using the second protocol.

37. The method of claim 35 wherein the registering of the first protocol and the receiving from the second process of a request is performed by a communications process.

38. The method of claim 37 wherein the communications process receives requests for multiple processes to register a protocol.

39. The method of claim 37 wherein the first protocol and the second protocol are the same protocol.

40. The method of claim 37 wherein the communications process notifies the first process to register the second protocol.

41. The method of claim 37 wherein the communications process notifies the second process of an endpoint of the first process that supports the second protocol.

42. The method of claim 37 wherein after registering the first protocol, the communications process notifies the second process so that the second process can send the request to the communications process via the first protocol.

43. The method of claim 35 wherein the registering of the first protocol and the receiving of the request are performed by the first process.

44. The method of claim 43 wherein the first process receives requests to register protocols from multiple processes.

45. The method of claim 35 wherein after registering the first protocol, notifying the second process so that the second process can send the request via the first protocol.

46. The method of claim 43 wherein after registering the first protocol, the first process notifies the second process so that the second process can send the request to the first process via the first protocol.

47. The method of claim 35 wherein when a protocol is registered by a process, the process can then communicate using the registered protocol.