Customer information control system application programming interface, with global and local system and file control functions, in a loosely coupled data processing environment

A method for providing parallel transaction processing a customer information control system (CICS) application programming interface (API), with global and local system and file control functions, in a data processing environment, the method comprising:

• providing a loosely coupled CICS region in the data processing environment, the loosely coupled CICS region being configured to carry out a shared information management scheme and including at least two of a plurality of machines and their respective address spaces, each of the address spaces being set-up to include at least one CICS-API operating system server (COSS), a flat segment and a keeper associated therewith;
• providing system and data resources information within the loosely coupled CICS region;
• providing in each COSS a suite of functions including the global and local system and file control functions for participating in the shared information management by registering as a flat segment user, interfacing with a keeper, interfacing with a master keeper in another machine via the keeper, and engaging in coordinated interaction with any other COSS within the loosely coupled CICS region;
• and
• initializing the loosely coupled CICS region in which each COSS is capable of directly accessing system and data resources from anywhere irrespective of which address space the COSS is operating in.

A system for providing a customer information control system (CICS) application programming interface (API), with global and local system and file control functions, in a loosely coupled data processing environment comprising a plurality of loosely coupled machines, the system comprising:

• a loosely coupled CICS region configured to carry out a shared information management scheme and including at least two of the plurality of machines and their respective address spaces;
• a flat segment in each of the address spaces;
• a keeper associated with the flat segment in each of the address spaces;
• more than one CICS-API operating system server (COSS) residing in one of the at least two address spaces, each COSS being capable of performing a suite of functions including the global and local system and file control functions for participating in the shared information management including by registering as a flat segment user, interfacing with a keeper, interfacing with a master keeper in another machine via the keeper, and engaging in coordinated interaction with any other COSS within the loosely coupled CICS region;
• and
• system and data resources within the loosely coupled CICS region, each COSS being capable of directly accessing the system and data resources from anywhere irrespective of which address space the COSS is operating in.

A system for providing a customer information control system (CICS) application programming interface (API), with global and local system and file control functions, in a loosely coupled data processing environment comprising a plurality of loosely coupled machines, the system comprising:

• means for implementing a loosely coupled CICS region in the data processing environment, the loosely coupled CICS region including at least two of a plurality of machines and their respective address spaces;
• means coupled to the implementing means for allocating a flat segment in the address space of each of the at least two machines;
• means coupled to the allocating means for providing a keeper in the address space of each of the at least two machines, one of the keepers being designated as a master keeper;
• means coupled to the keeper providing means for providing more than one CICS-API operating system server (COSS) within the loosely coupled CICS region, each COSS residing in one of the at least two address spaces within the loosely coupled CICS region;
• and
• means coupled to the COSS providing means for providing a suite of functions including the global and local system and file control functions in each COSS so that each COSS is capable of registering as a flat segment user and interfacing with a keeper and a master keeper, and so that each COSS is further capable of interfacing via the keeper with the master keeper in another of the at least two machines, each COSS being also capable of coordinated interaction with any other COSS within the loosely coupled CICS region, the suite of functions offering each COSS direct access to system and data resources from anywhere within the loosely coupled CICS region.

A computer program product, comprising:

• a computer useable medium having computer readable code embodied therein for providing a customer information control system (CICS) application programming interface (API), with global and local system and file control, the computer program product comprising:
• computer readable program code configured to cause a computer to effect implementing a loosely coupled CICS region, the loosely coupled CICS region including at least two of a plurality of computers and their respective address spaces;
• computer readable program code configured to cause a computer to effect allocating a flat segment in the address space of each of the at least two computers;
• computer readable program code configured to cause a computer to effect providing a keeper in the address space of each of the at least two machines, one of the keepers being designated as a master keeper;
• computer readable program code configured to cause a computer to effect providing more than one CICS-API operating system server (COSS) within the loosely coupled CICS region, each COSS residing in one of the at least two address spaces within the loosely coupled CICS region;
• and
• computer readable program code configured to cause a computer to effect providing a suite of functions including the global and local system and file control functions in each COSS so that each COSS is capable of registering as a flat segment user and interfacing with a keeper and a master keeper, and so that each COSS is further capable of interfacing via the keeper with the master keeper in another of the at least two machines, each COSS being also capable of coordinated interaction with any other COSS within the loosely coupled CICS region, the suite of functions offering each COSS direct access to system and data resources from anywhere within the loosely coupled CICS region.