Handling multi-pipe connections

Patent metadata

Field	Value
Publication number	US-10979510-B2
Application number	US-201916679364-A
Country	US
Kind code	B2
Filing date	Nov 11, 2019
Priority date	Sep 10, 2015
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

Methods, systems, and computer program products for handling multi-pipe connections is provided. A primary pipe request for a connection between a client and a server is received. The connection includes a plurality of pipes between the client and the server. The primary pipe request includes a number corresponding to the amount of pipes required for the connection. A first response acknowledging the receipt of the primary pipe request is transmitted. The first response includes a token. A plurality of subsequent pipe requests are received for the connection between the client and the server. Each subsequent pipe request includes the token. A subsequent response to each subsequent pipe request is transmitted. A count of the number of pipe requests received is maintained. The established pipes are released after a period of time has elapsed when the number of pipe requests received doesn't reach the number of pipes required for the connection.

First claim

What is claimed is:

1. A computer program product, the computer program product comprising:
a computer readable storage medium, wherein the computer readable storage medium is not a transitory signal per se, and program instructions stored on the computer readable storage medium, the program instructions comprising:
program instructions to receive a primary pipe request for a connection between a client and a server, wherein:
the connection comprises a plurality of pipes between the client and the server, and
the primary pipe request comprises a number of pipes required for the connection;

program instructions to transmit a first response acknowledging receipt of the primary pipe request for the connection, wherein the first response comprises:
a token for the connection; and
an indication that a first pipe has been established;

program instructions to receive a subsequent pipe request for the connection between the client and the server, wherein the subsequent pipe request includes the token;
program instructions to transmit a subsequent response to the subsequent pipe request, wherein the subsequent response indicates that a second pipe has been established; and
program instructions to maintain a count of the number of pipe requests received from the client.

2. The computer program product of claim 1 , further comprising:
program instructions to start a primary task, wherein the primary task stores the number of pipes required for the connection.

3. The computer program product of claim 2 , further comprising:
program instructions to suspend the primary task in response to establishing a first pipe;
program instructions to resume the primary task in response to receiving the subsequent pipe request; and
program instructions to terminate the primary task in response to the count of the number of pipe requests received equalling the number of pipes required for the connection.

4. The computer program product of claim 2 , further comprising:
program instructions to establish a second pipe between the client and the server, wherein the second pipe corresponds to the subsequent pipe request; and
program instructions to terminate a secondary task in response to establishing the second pipe.

5. The computer program product of claim 2 , wherein the primary task is further operated to set a time limit on a period for waiting to receive the next pipe request prior to releasing the established pipes if the count of the number of pipe requests received does not reach the number for the pipes required for the connection.

6. The computer program product of claim 1 , further comprising:
program instructions to, responsive to the number of pipe requests not reaching the number of pipes required for the connection within a time period, release the first pipe and the second pipe.

7. The computer program product of claim 1 , wherein program instructions to maintain the count of the number of pipe requests received from the client is based on a subsequent request including the token.

8. A computer system, the computer system comprising:
one or more computer processors;
one or more computer readable storage media, wherein the one or more computer readable storage media are not transitory signals per se;
program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:
program instructions to receive a primary pipe request for a connection between a client and a server, wherein:
the connection comprises a plurality of pipes between the client and the server, and
the primary pipe request comprises a number of pipes required for the connection;

program instructions to transmit a first response acknowledging receipt of the primary pipe request for the connection, wherein the first response comprises:
a token for the connection; and
an indication that a first pipe has been established;

program instructions to receive a subsequent pipe request for the connection between the client and the server, wherein the subsequent pipe request includes the token;
program instructions to transmit a subsequent response to the subsequent pipe request, wherein the subsequent response indicates that a second pipe has been established; and
program instructions to maintain a count of the number of pipe requests received from the client.

9. The computer system of claim 8 , further comprising:
program instructions to start a primary task, wherein the primary task stores the number of pipes required for the connection.

10. The computer system of claim 9 , further comprising:
program instructions to suspend the primary task in response to establishing a first pipe;
program instructions to resume the primary task in response to receiving the subsequent pipe request; and
program instructions to terminate the primary task in response to the count of the number of pipe requests received equalling the number of pipes required for the connection.

11. The computer system of claim 9 , further comprising:
program instructions to establish a second pipe between the client and the server, wherein the second pipe corresponds to the subsequent pipe request; and
program instructions to terminate a secondary task in response to establishing the second pipe.

12. The computer system of claim 8 , further comprising:
program instructions to, responsive to the number of pipe requests not reaching the number of pipes required for the connection within a time period, release the first pipe and the second pipe.

13. The computer system of claim 8 , wherein program instructions to maintain the count of the number of pipe requests received from the client is based on a subsequent request including the token.

Assignees

• IBM

Inventors

• Brooks Michael D
• Hollingshead Alan
• Horn Julian C
• Wakelin Philip I

Classifications

• H04L67/01

  Protocols · CPC title

• H04L1/1621

  Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers · CPC title

• H04L67/141 Primary

  Setup of application sessions (admission control or resource allocation in data switching networks H04L47/70) · CPC title

• H04L67/143

  Termination or inactivation of sessions, e.g. event-controlled end of session · CPC title

• H04L69/14

  Multichannel or multilink protocols · CPC title