1. 最近リリースした
N個のCPANモジュール
Yokohama.pm #10
2014/02/21
kazeburo

2. Time::Crontab
parser for crontab date and time field

3. use Time::Crontab;
my $time_cron = Time::Crontab->new('0 0 1 * *');
if ( $time_cron->match(time()) ) {
do_cron_job();
}

4. Proclet@0.32
supports cron like job

5. use Proclet;
my $proclet = Proclet->new();
$proclet->service(...);
$proclet->service(...);
$proclet->service(
code => sub {
scheduled_work();
},
tag => 'cron',
every => '0 12 * * *', #everyday at 12:00am
);
$proclet->run;

6. Apache::LogFormat::Compiler
@0.14 bugfix around DST
@0.30 improvement strftime(2)

7. Apache::LogFormat::Compiler has a
problem. Twice a year the timezone is
changed because of daylight saving.
A::LF::C ignores this fact and still
shows old timezone after change.
https://github.com/kazeburo/Apache-LogFormat-Compiler/pull/3
dex4er
ALFC、DST(サマータイム)をサポートしてないよ!

8. version < 0.14
local $ENV{TZ} = 'America/New_York';
POSIX::tzset;
my $time = timelocal(0, 0, 1, 3, 11 - 1, 2013);
my $log_handler = Apache::LogFormat::Compiler->new();
my $req = req_to_psgi(GET "/");
my $res = [200,[],[q!OK!]];
print $log_handler->log_line($req,$res,0,2,$time);
print $log_handler->log_line($req,$res,0,2,$time+3599);
print $log_handler->log_line($req,$res,0,2,$time+3600);
時間が戻ってる!
__DATA__
127.0.0.1 - - [03/Nov/2013:01:00:00 -0400] "GET / HTTP/1.1" 200 0 "-" "-"
127.0.0.1 - - [03/Nov/2013:01:59:59 -0400] "GET / HTTP/1.1" 200 0 "-" "-"
127.0.0.1 - - [03/Nov/2013:01:00:00 -0400] "GET / HTTP/1.1" 200 0 "-" "-"

9. version >= 0.14
local $ENV{TZ} = 'America/New_York';
POSIX::tzset;
my $time = timelocal(0, 0, 1, 3, 11 - 1, 2013);
my $log_handler = Apache::LogFormat::Compiler->new();
my $req = req_to_psgi(GET "/");
my $res = [200,[],[q!OK!]];
print $log_handler->log_line($req,$res,0,2,$time);
print $log_handler->log_line($req,$res,0,2,$time+3599);
オフセットが
print $log_handler->log_line($req,$res,0,2,$time+3600);
変わった
__DATA__
127.0.0.1 - - [03/Nov/2013:01:00:00 -0400] "GET / HTTP/1.1" 200 0 "-" "-"
127.0.0.1 - - [03/Nov/2013:01:59:59 -0400] "GET / HTTP/1.1" 200 0 "-" "-"
127.0.0.1 - - [03/Nov/2013:01:00:00 -0500] "GET / HTTP/1.1" 200 0 "-" "-"

10. I'm trying to install
Apache::LogFormat::Compiler on
Android. This system has poor
support for locales, so the Perl is
usually compiled with -Ui_locale flag.
https://github.com/kazeburo/Apache-LogFormat-Compiler/pull/6
dex4er
Andoroidがsetlocaleをサポートしてない!

11. $ export LC_ALL=ja_JP.UTF-8
$ perl -MPOSIX=strftime
-E 'say strftime(q!%d/%b/%Y%T!,localtime());'
21/ 2月/2014:00:17:35
strftime(2) はlocaleによって出力が変わる

12. my $old_locale = POSIX::setlocale(&POSIX::LC_ALL);
POSIX::setlocale(&POSIX::LC_ALL, 'C');
$time = POSIX::strftime(‘%d/%b/%Y:%T’,localtime());
POSIX::setlocale(&POSIX::LC_ALL, $old_locale);
%{format}t がstrftime(2) を使っていて、
ALFCはstrftime(2)の前にsetlocale(LC_ALL,C)してた

13. |
＼ __ ／
＿ （ｍ） ＿ﾋﾟｺｰﾝ
|ミ|
／ ｀´ ＼
('A`)
ノヽノヽ
くく
そうだlocaleに影響を受けない
strftime(2)を作ろう
やめておけばよかった。。

14. POSIX::strftime::Compiler

15. $ export LC_ALL=ja_JP.UTF-8
$ perl -MPOSIX::strftime::Compiler=strftime
-E 'say strftime(q!%d/%b/%Y:%T!,localtime());'
21/Feb/2014:00:17:35
localeによって出力が変わらない! YATTA!!

16. Time::TZOffset
Show timezone offset strings like “+0900”
more portable than POSIX::strftime('%z') and fast
XSにてtm構造体のtm_gmtoffを取得するモジュール
gmtoffをサポートしていないOSでは
localtimeとgmtimeの差分を計算

17. HTTP::Entity::Parser
PSGI compliant HTTP Entity Parser
yet another HTTP::Body
based on tokuhirom's code. https://github.com/plack/Plack/pull/434
別のモジュールしてだれか進めて

18. use HTTP::Entity::Parser;
my $parser = HTTP::Entity::Parser->new;
$parser->register('application/x-www-form-urlencoded',
'HTTP::Entity::Parser::UrlEncoded');
$parser->register('multipart/form-data',
'HTTP::Entity::Parser::MultiPart');
$parser->register('application/json',
'HTTP::Entity::Parser::JSON');
sub app {
my $env = shift;
my ( $params, $uploads) = $parser->parse($env);
}

19. WWW::Form::UrlEncoded
parser and builder for application/x-www-form-urlencoded

20. s_id=1&type=foo&message1=foo+bar+baz+hoge
+hoge+hoge+hoge+hogehogemessage2=
%E6%97%A5%E6%9C%AC%E8%AA%9E
%E3%81%A7%E3%81%99%E3%82%88%E3%83%BC
parse
build
(s_id => 1, type => 'foo', message1 =>
'foo bar baz hoge hoge hoge hoge
hogehoge', message2 => '日本語ですよー')

21. 'a=b&c=d'
'a=b;c=d'
'a=1&b=2;c=3'
'a==b&c==d'
'a=b& c=d'
'a=b; c=d'
'a=b; c =d'
'a=b;c= d '
'a=b&+c=d'
'a=b&+c+=d'
'a=b&c=+d+'
'a=b&%20c=d'
'a=b&%20c%20=d'
'a=b&c=%20d%20'
'a&c=d'
'a=b&=d'
'a=b&='
'&'
'='
''
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
=>
["a","b","c","d"]
["a","b","c","d"]
["a","1","b","2","c","3"]
["a","=b","c","=d"]
["a","b","c","d"]
["a","b","c","d"]
["a","b","c ","d"]
["a","b","c"," d "]
["a","b"," c","d"]
["a","b"," c ","d"]
["a","b","c"," d "]
["a","b"," c","d"]
["a","b"," c ","d"]
["a","b","c"," d "]
["a","","c","d"]
["a","b","","d"]
["a","b","",""]
["","","",""]
["",""]
Plack::RequestやHTTP::Bodyとの
[]
互換性を維持する

22. WWW::Form::UrlEncoded::XS
XS implementation of parser and builder for application/x-www-form-urlencoded

23. Benchmark: running parse_pp, parse_xs
for at least 3 CPU seconds...
parse_pp: 3 wallclock secs
( 3.00 usr + 0.00 sys = 3.00 CPU)
@ 27353.00/s (n=82059)
parse_xs: 3 wallclock secs
( 3.02 usr + 0.00 sys = 3.02 CPU)
@ 258802.32/s (n=781583)
Rate
parse_pp 27353/s
parse_xs 258802/s
parse_p
-846%
parseのベンチマークで
parse_xs
-89%
--
9.5倍高速

24. Benchmark: running build_pp, build_xs
for at least 3 CPU seconds...
build_pp: 4 wallclock secs
( 3.40 usr + 0.01 sys = 3.41 CPU)
@ 15048.68/s (n=51316)
build_xs: 4 wallclock secs
( 3.08 usr + 0.01 sys = 3.09 CPU)
@ 651364.08/s (n=2012715)
Rate build_pp build_xs
build_pp 15049/s
--98%
build_xs 651364/s
4228%
--
43倍高速
buildは

25. ## content length => 38 ##
Rate
http_body http_entity
http_body
35870/s
--41%
http_entity 60703/s
69%
-## content length => 177 ##
Rate
http_body http_entity
http_body
14355/s
--74%
http_entity 54371/s
279%
-## content length => 1997 ##
Rate
http_body http_entity
http_body
2054/s
--92%
http_entity 27049/s
1217%
--
WWW::Form::UrlEncoded::XSをいれた
HTTP::Entity::Parserのベンチマーク

26. これからの課題
•
Plackに取り込んでもらう
*Plackの依存モジュールは基本Pure Perl
•
Plack::(?:Request|Response)の高速版を作る
*互換性を保ちつつXS利用

27. いじょう。