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…by example?
If you want to write XS,
you have to learn it.
Learning XS is very difficult
Steven W. McDougall
XS is a glue
eXtendable Subroutines
<code>
<code>
<code><code>
<code>
ode>
<code>
<code><code>
<code>
<code><code>
<code>
<code>
<code>
<code>
<code><code>
<code> <co
<code>
<code>
Perl API
Let’s start
XS/Logger.pm
XS/Logger.pm
Minimal loader
Logger.xs structure
Makefile.PL
or use Dist::Zilla
Basic test
Basic test
logger.h
Logger.xs - new
Logger.xs - new - using type map
more perlxstypemap
Logger.xs - DESTROY
Testing - new + DESTROY
Logger.xs - new with args
Logger.xs - accessors
Logger.xs - accessors using alias
Logger.xs - setters
advertise logger levels
advertise logger using const subs
default file path
default file path - set
default file path - set
default file path - delayed
basic logger
one route to log all
method or function
logger format
logger format… with colors
colors… in colors.h
colors… in the c code
back to the format
timestamp level pid program message
timestamp in C
timestamp level pid program message
PID in C
timestamp level pid program message
program name using perl
timestamp level pid program message
message…
message…
message…
message…
message…
back to the format
timestamp level pid program message
Getting started with XS May 3, 2017 by David Farrell
https://www.perl.com/article/getting-started-with-xs/
grep.metacpan.org
Questions?
The End

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