[특허]Distributed messaging system and method

Distributed messaging system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-013/14
출원번호	US-0577410 (1990-09-04)
발명자 / 주소	Quan Suu (Campbell CA)
출원인 / 주소	Hewlett-Packard Company (Palo Alto CA 02)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A computer based message passing system and method provides reliable, versatile, portable and robust data communication between processes. The message passing system and method is adapted for use with one or more computers for controlling the message passing system and method. The message passing system and method includes a shared memory area in which data regarding the status and location of application processes and computers are stored. Any intelligent subsystem participating in the message passing system and method can query the shared memory for information. One subsystem monitors the location and status of application processes and updates the shared memory area as needed. Another subsystem routes messages from one process to another, and ensures that the messages are delivered properly. A mailbox feature is provided to hold messages in cases in which a destination process is not able to receive the message at the time delivered. The message passing system and method, in its software embodiment, includes five subroutines and four utilities.

대표청구항 ▼

In a computer-based distributed messaging system for communicating messages between application processes, the system including (1) a plurality of computers remotely located from each other, (2) memory means in the computers, (3) communication means interconnecting the computers and operative to carry messages between the computers, and (4) a plurality of application processes located in various ones of the computers, a method of sending messages between the application processes, the method comprising the following steps carried out by administrative processes in the system; broadcasting through the communication means, for storage in the memory means of the computers, data indicative of the location and status of each application process when the application process becomes active; broadcasting through the communication means, for storage in the memory means of the computers, any change in any previously-broadcast status and location data such that the stored data indicative of the locations and statuses of the various application programs are always current in the memory means; determining, by reference to the location and status data stored in the memory means, the location and status of an application process to which a message generated by another application process is addressed; if the addressee process is not in an active status, storing the message until such time as the status data indicates that the addressee process has become active; if the generating and addresses processes are not located in the same computer, sending the message through the communication means to the computer in which the addressee process is located; and if the addressee process is in an active status, delivering the message to the addressee process.

이 특허를 인용한 특허 (35)

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Li Jianzhong (Chatenay-Malabry FRX) Brunon Jean-Philippe (Paris FRX), Method and apparatus for communication between at least one client and at least one server.
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Richard M. Goldstein, Method and system for allowing client processes to run on distributed window server extensions.
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Donahue Clark P. ; Bhatt Nikhil, Method and system for data transmission over a network link between computers with the ability to withstand temporary in.
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Moore, Devin C., Method and system for storing and presenting program messages.
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Dinnis Richard E. ; Powers Michael T., Method of transmitting messages between software processes in a multitasking data processing system.
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Stewart, Bryan P.; Bartman, Craig C.; Liesing, Daniel F.; Cisler, Steven M., Process communication multiplexer.
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Dontje, Terry D.; Sistare, Steven J., Robust communications connection system and method for shared memory.
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Kahn Robert E. ; Ely David K., System for uniquely and persistently identifying, managing, and tracking digital objects.
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Fuchs, Axel; Andrews, Scott Sturges, System, method and computer program product for sharing information in a distributed framework.
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