file descriptor

(programming, operating system)An integer that identifies anopen file within a process. This number is obtained as aresult of opening a file. Operations which read, write, orclose a file would take the file descriptor as an inputparameter.

In many operating system implementations, file descriptorsare small integers which index a table of open files. InUnix, file descriptors 0, 1 and 2 correspond to thestandard input, standard output and standard error filesrespectively.

See file descriptor leak.

单词	file descriptor
释义	file descriptor file descriptor (programming, operating system)An integer that identifies anopen file within a process. This number is obtained as aresult of opening a file. Operations which read, write, orclose a file would take the file descriptor as an inputparameter. In many operating system implementations, file descriptorsare small integers which index a table of open files. InUnix, file descriptors 0, 1 and 2 correspond to thestandard input, standard output and standard error filesrespectively. See file descriptor leak. AcronymsSeefjord
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