Method of emulating synchronous communication

• US 6,068,661 A
• Filed: 10/01/1997
• Issued: 05/30/2000
• Est. Priority Date: 10/01/1997
• Status: Expired due to Term

• Current Assignee: Round Rock Research LLC
• Original Assignee: Micro Electronics Incorporated
• Inventors: Shari, Srikumar N.
• Primary Examiner(s): Teska, Kevin J.
• Assistant Examiner(s): Broda, Samuel
• Application Number:
  US08/942,004
• Time in Patent Office: 972 Days
• Field of Search: 395/500, 395/200.3, 395/680, 395/500.45, 395/500.46, 395/500.47, 395/500.48, 364/578, 709/101
• US Class Current: 703/27
• CPC Class Codes: H04L 12/40 Bus networks
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks

Abstract

The invention configures an asynchronous system to emulate a synchronous system. When an application initiates a synchronous transaction, the synchronous transaction is received by a synchronous interface. The synchronous interface, in turn, simulates a synchronous system while performing an asynchronous transaction. In one embodiment, the synchronous emulation ensures that the asynchronous transaction is completed within a configurable maximum time duration. If the asynchronous transaction has not been completed with within the defined maximum time duration, the synchronous emulation notifies the application that the desired data is not available. In another embodiment, the synchronous eumlation re-executes failed asynchronous transactions.

Claims

1. A method of providing emulation of a synchronous transaction in an asynchronous communication system comprising the acts of:

in an emulation module;

receiving a request to provide data synchronously;

passing said request to a communication routine;

waiting for notification from said communication routine;

in said communication routine;

obtaining the requested data asynchronously;

storing said data in a memory;

providing notification to said module when the requested data is available;

in the emulation module;

requesting said communication routine to provide said data or a pointer to said data in the memory after receiving said notification; and

,

responding to said request synchronously.

2. The method of claim 1, wherein providing emulation of a synchronous transaction comprises making a single request for all of one or more items of data and obtaining all of said one or more items of data in a single response.

3. The method of claim 1, wherein said providing notification comprises said communication routine setting a flag in a window module after which said window module provides notification to said module.

4. The method of claim 1, wherein responding to said request comprises providing to an application module all of one or more items of data or a pointer to all of one or more items of data.

5. The method of claim 1, wherein said passes said request to a communication routine comprises configuring said request for a function call, said function call obtaining the requested data from software on a server computer.

6. The method of claim 1, wherein waiting for notification comprises blocking the operation of said application module which made said request.

7. The method of claim 1, wherein said module operates using Simple Network Management Protocol.

8. A method of emulating a synchronous transaction with an application module, the method comprising:

executing a request to an SNMP module for data wherein said data is to be provided to said application module synchronously;

forwarding said request to a library;

monitoring said library for an indication that all of said request is complete;

directing said library to obtain and store in memory all of said data, said library further providing notice to said SNMP module when all of said data is available; and

,

providing all of said data to said application module after said SNMP module receives said notice from said library.

9. The method of claim 8, wherein for a synchronous transaction said application module is blocked from further operation until the return of said data.

10. The method of claim 8, wherein said directing said library comprises using at least one of a GET, GETNEXT, or SET commands.

11. The method of claim 8, wherein said library comprises a WinSNMP Library.

12. A method of emulating a synchronous transaction in an asynchronous communication system, the method comprising:

programming an application for use in the asynchronous communication system;

preparing at least one request for data routine in said application, the routine being configured to request the data across a network synchronously; and

storing the data in a memory until all of the data is received.