Perl6 web-app
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This document discusses writing a web application in Perl6. It summarizes implementing key functions like forking and waiting for child processes using NativeCall to call libc methods. It also proposes writing a C DLL for a Raw::Socket module to provide a BSD socket wrapper and using that to build an httpd with features like request parsing and pre-forking.
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![module private {
our sub waitpid(Int $pid, CArray[int]
$status, Int $options)
returns Int is native { ... }
}
sub waitpid(Int $pid, Int $options) is export {
my $status = CArray[int].new;
$status[0] = 0;
my $ret_pid = private::waitpid($pid, $status,
$options);
return ($ret_pid, $status[0]);
}](https://image.slidesharecdn.com/perl6-web-app-150918141330-lva1-app6891/85/Perl6-web-app-10-320.jpg)
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- 1. Writing web application on Perl6 (In progress) 2015.09.17 gotanda.pm tokuhirom
- 2. MoarVM’s IO has an issue. https://github.com/MoarVM/MoarVM/issues/165
- 3. Can’t pass fd between threads
- 4. orz
- 5. But we can call libc methods via NativeCall
- 6. First, call fork(2) via NativeCall
- 7. sub fork() returns Int is native { ... }
- 8. Easy.
- 9. 2nd, call waitpid(2) via NativeCall
- 10. module private { our sub waitpid(Int $pid, CArray[int] $status, Int $options) returns Int is native { ... } } sub waitpid(Int $pid, Int $options) is export { my $status = CArray[int].new; $status[0] = 0; my $ret_pid = private::waitpid($pid, $status, $options); return ($ret_pid, $status[0]); }
- 12. Then,
- 13. Let’s implement BSD sockets wrapper.
- 14. I don’t recommend to use NativeCall directly.
- 15. There’s too many C types/ structs. Too many wrapper types…
- 16. Write dll in C. And call it via NativeCall.
- 17. Raw::Socket BSD socket wrapper for Perl6
- 19. Support features • parse request • send response • pre-fork • shotgun - reload code • Win32 support ← NEW!
- 20. Demo
- 22. Thanks!