Hi there! I'm a general enthusiast of computing! I write books and blogs and I teach and code.
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Beej's Guide to Unix Interprocess Communication source
License: Other
Hi there! I'm a general enthusiast of computing! I write books and blogs and I teach and code.
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For example, on this line in chapter 6.2, this text in Markdown:
fl.l_type = <b>F_UNLCK</b>; /* tell it to unlock the region */
gets rendered as raw code, therefore including the <b>
and </b>
tags in both HTML and PDF output.
I noticed that the guide promotes the use of mknod
instead of mkfifo
for creating the FIFOs, which contradicts the POSIX and the common advice I've seen. mkfifo
isn't even mentioned as an alternative call.
Is there a specific reason, like difference in portability?
The POSIX standard states:
The mkfifo() function is preferred over this function for making FIFO special files.
The Linux manual for mknod also quotes POSIX.1-2001:
"The only portable use of mknod() is to create a FIFO-special file. If mode is not S_IFIFO or dev is not 0, the behavior of mknod() is unspecified." However, nowadays one should never use mknod() for this purpose; one should use mkfifo(3), a function especially defined for this purpose.
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