9srv Manual Collection/plan9/iounit(2) | 9srv Manual Collection/plan9/iounit(2) |
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int iounit(int fd)
The iounit routine uses the dup(3) interface to discover the I/O unit size for the file descriptor fd and returns its value. Certain file descriptors, particularly those associated with devices, may have no specific I/O unit, in which case iounit will return 0.
9srv Manual Collection/plan9/iounit(2) | Rev: Sun Dec 02 23:42:20 GMT 2007 |