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UNIX Internals

UNIX Internals
作者:Uresh Vahalia
副标题:The New Frontiers
出版社:Prentice Hall
出版年:1995-11
ISBN:9780131019089
行业:其它
浏览数:4

内容简介

For advanced undergraduate/graduate-level courses. This text offers an exceptionally up-to-date, in-depth, and broad-based exploration of the latest advances in UNIX-based operating systems. Focusing on the design and implementation of the operating system itself -- not on the applications and tools that run on it -- this text compares and analyzes the alternatives offered by several important UNIX variants, and covers several advanced subjects, such as multi-processors and threads.

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读书文摘

5.4 Relationship Between File Descriptors and Open Files

4BSD provides the flock system call, which only supports advisory locking of open files, but allows both shared and exclusive locks

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