Method for executing operation call from client application using shared memory region and establishing shared memory region when the shared memory region does not exist
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United States of America Patent
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Oct 15, 1996
Issued Date -
N/A
app pub date -
Jul 29, 1994
filing date -
Dec 21, 1992
priority date (Note) -
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Abstract
The present invention provides an elegant and simple way to provide mechanisms for invocation of objects by client applications and for argument passing between client applications and object implementations, without the client application or the operating system knowing the details of how these mechanisms work. Moreover, these mechanisms functions in a distributed computer environment with similar ease and efficiency, where client applications may be on one computer node and object implementations on another. The invention includes a new type of object, termed a 'spring object,' which includes a method table, a subcontract mechanism and a data structure which represents the subcontract's local private state. This application is directed to a Shared Memory subcontract whereby a client and a server can share a memory region for argument and results passing in certain circumstances without the intervention of the kernel and with no restrictions on the type or complexity of the arguments being exchanged.
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