摘要:
A method and system for providing state-full access to files and resuming access should a connection be broken. A resume key is returned to the client that allows the client to request a duplicate handle to an open file. The duplicate handle can be used to access the file in the same manner as the handle used to open the file. When a connection is broken, the file remains open on the server for a period of time and the state information associated with the file is maintained. Even if a connection is not broken, a client may request one or more duplicate handles and establish other channels (also known as connections) with which to access the file.
摘要:
An address translation control circuit which operates in connection with a processor and a translation look-aside buffer ("TLB") to perform virtual-to-physical address translations through shared entries of the TLB. The address translation control circuit comprises a primary context storage element, a group context storage element, a context matching circuit, a comparing unit and a logic unit. The context matching circuit is coupled to primary and group context storage elements to receive their context numbers and reads a context identification number and a context select bit value from a chosen translation entry of the TLB. Concurrently, the comparing unit compares the virtual address contained in that entry with the virtual address requested for translation by the processor. The logic unit receives the outputs from the context matching circuit and the comparing unit and signals operating system software whether an appropriate translation has been found in the TLB.
摘要:
The present invention provides a processor including a core unit for processing requests from at least one process. The at least one process has a code portion with at least one segment having a first code context identifier. The at least one process also has a data portion with a first data context identifier. The processor further includes a first storage device for storing code address translations and a second storage device for storing data address translations. The processor also includes a code context register coupled to the core unit and to the first storage device, for storing a second code context register. The processor also includes a data context register, coupled to the core unit and to the second storage device for storing a second data context identifier.
摘要:
Described is a mechanism for exposing a volume shadow copy of a shared volume over a network to a remote client. A shared volume is accessed at a client computing system having a root. A volume shadow copy (or “snapshot”) of the volume is identified as a child resource of the shared volume. The child resource representing the snapshot may be hidden from ordinary view by default. To access the snapshot, a user may access the child resource as if it were an ordinary file or directory on the shared volume. Advantageously, the user need not mount a new volume representing the snapshot volume, but rather the user may directly access the snapshot.