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公开(公告)号：CA1244142A
公开(公告)日：1988-11-01
申请号：CA501734
申请日：1986-02-12
Applicant: IBM
Inventor： HAMMER WILLIAM E , SCHWANE WALTER H , ZIECINA FREDERICK J
Abstract: DISTRIBUTED DATA MANAGEMENT MECHANISM A data management mechanism for a processor system provides for management of data with minimum data transfer between processes executing work requests. Each process has storage areas for storing data associated with work requests. The data is described with descriptor elements in the work requests which indicate the location and length of segments of the data. Data is transferred to a process only if it is required for execution of a work request. Further work requests can be generated by a process executing a work request which reference the data without the process actually receiving the data. The segments of data may reside in storage areas of different processors with the descriptor elements of a work request defining a logical data stream.
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公开(公告)号：CA1233907A
公开(公告)日：1988-03-08
申请号：CA501727
申请日：1986-02-12
Applicant: IBM
Inventor： HAMMER WILLIAM E , SCHWANE WALTER H , ZIECINA FREDERICK J
Abstract: FLEXIBLE DATA TRANSMISSION FOR MESSAGE BASED PROTOCOLS An interprocess data transfer facility provides transfer of data between two processes. Work requests are represented by notes that are placed on a queue of a server process for performing the work. The requestor process which created a work request does not transfer the work request from storage it controls until requested by the server. The actual transfer of the work request occurs without interaction of the requestor. The use of notes which represent the work requests permits complex queueing of notes and hence handling of the requests in the order desired by the server.
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公开(公告)号：CA1244555A
公开(公告)日：1988-11-08
申请号：CA501732
申请日：1986-02-12
Applicant: IBM
Inventor： SCHWANE WALTER H , ZIECINA FREDERICK J
Abstract: PROCESS TRANSPARENT MULTI STORAGE MODE DATA TRANSFER AND BUFFER CONTROL An interprocess communication facility in a processor system provides for communication of data between at least two processes. The facility supports a plurality of different data transfer modes which are provided by storage management services of the processor or processors. A process interface provides a common interface for each communicating process to select data transfer modes independently of the data transfer mode chosen by the other communicating process. A data access control function is coupled to the process interface and to the storage management services. The data access control function controls the use of the storage management services as a function of the transfer modes chosen by the communicating processes. It is transparent to the processes as to which transfer mode was chosen by each other.
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