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classify_process_affinity_lib provides C++ functions that determine whether "man 1 tasket," or, equivalently, "man 2 sched_setaffinity" is able to modify the CPU affinity of a given Linux thread. Examples of threads that are not pinnable are per-CPU threads like ksoftirqd/* and kworkers.
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cpumask calculates hexadecimal cpumasks that are useful with, for example, /usr/bin/taskset from util-linux.
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hex2dec and dec2hex perform the format conversions that should be obvious from their names. They will read either from stdin or from the command-line, making the following the obvious test:
$ hex2dec 0xFFF | dec2hex<br/> 0xFFF -
hexsum is a bash script that performs addition or substraction on a pair of hex numbers by invoking hex2dec.
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watch_file and watch_one_file provide a simple method for the user to spy on which files another program is accessing without generating the giant spew of strace.
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cdecl is a program originally suggested by Kernighan and Ritchie on p. 100 of the Second "ANSI C" Edition of The C Programming Language in the section "Complicated Declarations." They say "we will present a pair of programs that convert from valid C to a word description and back again. The word description reads left to right." I only wrote the program that converts C into English. K&R present a simpler version of cdecl as an example, while more featureful versions like that presented here are outlined in Exercises 5-18 and 5-20.
The problem is also discussed by Peter van der Linden in the Programming Challenge of Chapter 3, p. 85 of Expert C Programming: Deep C Secrets, p. 85 of Chapter 3. The challenge is "Write a program to translate C declarations into English". I wrote this version without first consulting either of van der Linden's or K&R's versions. Theirs are more elegant, but I have confirmed that mine reproduces their answers. Caveat emptor!
cdecl also works either with command-line or stdin input. In the latter case, use '-' as an argument after the "cdecl" command:
$ echo "char *foo;" | cdecl -<br/> foo is a(n) pointer(s) to charProcessing command line input adds considerable complexity to the program, as does the limited error checking. I've attempted to support all the features of C declarations described in ANSI C with the exception of those noted in the usage() output.
Alison Chaiken
[email protected]