METHODS, SYSTEMS, AND APPARATUS FOR OBJECT INVOCATION ACROSS PROTECTION DOMAIN BOUNDARIES

Methods, apparatus, systems, and computer program products for invoking remote process calls and facilitating inter-process communications in a protected memory system employ a kernel that supports remote invocation of objects by a system call. The system call may include an object identifier and a...

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Main Authors BRIAN H KELLY, URQUHART KRISTOPHER S, CHANDRASEKHAR RAMESH, WALKER ROBERT G
Format Patent
LanguageEnglish
Korean
Published 09.09.2009
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Abstract Methods, apparatus, systems, and computer program products for invoking remote process calls and facilitating inter-process communications in a protected memory system employ a kernel that supports remote invocation of objects by a system call. The system call may include an object identifier and a set of pointers to input and output buffers. The kernel locates the specified object in a separate server process domain and awakens a server thread within the server domain to invoke the object. Using provided memory pointers, the kernel can copy input and output data across the protection domains in a single step without the need for copying data into an intermediate buffer. This eliminates the overhead of multiple data copy steps that are required in conventional protected memory systems.
AbstractList Methods, apparatus, systems, and computer program products for invoking remote process calls and facilitating inter-process communications in a protected memory system employ a kernel that supports remote invocation of objects by a system call. The system call may include an object identifier and a set of pointers to input and output buffers. The kernel locates the specified object in a separate server process domain and awakens a server thread within the server domain to invoke the object. Using provided memory pointers, the kernel can copy input and output data across the protection domains in a single step without the need for copying data into an intermediate buffer. This eliminates the overhead of multiple data copy steps that are required in conventional protected memory systems.
Author URQUHART KRISTOPHER S
CHANDRASEKHAR RAMESH
WALKER ROBERT G
BRIAN H KELLY
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SubjectTerms CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Title METHODS, SYSTEMS, AND APPARATUS FOR OBJECT INVOCATION ACROSS PROTECTION DOMAIN BOUNDARIES
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