发明授权
US5845280A Method and apparatus for transmitting a file in a network using a single
transmit request from a user-mode process to a kernel-mode process
失效
使用从用户模式处理到内核模式处理的单个发送请求在网络中传送文件的方法和装置
- 专利标题: Method and apparatus for transmitting a file in a network using a single transmit request from a user-mode process to a kernel-mode process
- 专利标题(中): 使用从用户模式处理到内核模式处理的单个发送请求在网络中传送文件的方法和装置
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申请号: US533537申请日: 1995-09-25
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公开(公告)号: US5845280A公开(公告)日: 1998-12-01
- 发明人: David R. Treadwell, III , Michael T. Massa
- 申请人: David R. Treadwell, III , Michael T. Massa
- 申请人地址: WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: WA Redmond
- 主分类号: H04L29/06
- IPC分类号: H04L29/06 ; H04L29/08 ; G06F17/00
摘要:
A method and apparatus for transmitting files on a network are described. In response to a network request for a file stored on a secondary data storage device such as a hard disk, a file server retrieves and transmits the file using a reduced number of calls from user-mode processes to kernel-mode processes. In response to a file request from a non-local networked machine, a user-mode process on the file server issues a command to a kernel-mode process requesting transmission of the requested file to the non-local networked machine via a designated connection. In response, the requested file is retrieved from the secondary data storage device and placed in kernel-mode accessed memory (e.g., cache memory). After the requested file information is stored in the kernel-mode accessed memory, a kernel-mode data transmission procedure transmits the requested file information directly from the kernel-mode accessed memory.
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