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Methods and apparatus for managing debugging I/O

  • US 7,010,781 B1
  • Filed: 02/15/2000
  • Issued: 03/07/2006
  • Est. Priority Date: 02/15/2000
  • Status: Expired due to Term
First Claim
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1. In a computer system providing a set of software system services, a method of providing replacement functions for a stack of software system services, the stack of software system services including one or more layers, each layer representing one of the software system services, wherein lower layers provide services to upper layers in the stack, comprising:

  • automatically sending a request for a primitive function down from one of the layers of the stack of software system services to another one of the layers in the stack of system services, the primitive function replicating the another one of the set of software system services receiving the request for the primitive function in a manner such that implementation of the primitive function reduces or eliminates reliance on one or more system functions capable of becoming non-functional in the event of a system error; and

    receiving an identifier associated with the requested primitive function at the one of the set of software system services sending the request for the primitive function from another one of the set of software system services in response to the request, thereby enabling the one of the set of software system services to call the primitive function via the identifier associated with the requested primitive function instead of the another one of the set of software system services.

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