Method of sharing memory between an operating system and an appl

Details Method of sharing memory between an operating system and an appl Method of sharing memory between an operating system and an appl

1993-08-30

1997-09-30

Hafiz, Tariq R.

39520013, 395424, 395475, 3952001, H01J 1300

Patent

active

056733941

ABSTRACT:
An improved method for the sharing of data among a file server, a file system, and a network driver executing on a computer is provided. The file system allocates cache buffers to be used in reading from or writing to a file. When reading a file, the file system starts loading the cache buffers with the file data. When a buffer is loaded, the file system signals the file server that a buffer at a certain address is loaded. The file server provides the network driver with the buffer address of the data that is ready to be transported onto a computer network. The transport system then reads the data from the cache buffers and sends the data onto the computer network. When writing a file, the file system allocates cache buffers to receive the file. The file system notifies the file server of the cache buffer addresses. The file server then notifies the network driver of the cache buffer addresses. When the network driver receives the data it loads the data directly into the cache buffers. The file system can then write the data from the cache buffers to the disk.

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