NAME starlight - Light and pure-Perl PSGI/Plack HTTP server with pre-forks SYNOPSIS $ starlight --max-workers=20 --max-reqs-per-child=100 app.psgi $ starlight --port=80 --ipv6=1 app.psgi $ starlight --port=443 --ssl=1 --ssl-key-file=file.key --ssl-cert-file=file.crt app.psgi $ starlight --socket=/tmp/starlight.sock app.psgi DESCRIPTION Starlight is a standalone HTTP/1.1 server with keep-alive support. It uses pre-forking. It is a pure-Perl implementation that doesn't require any XS package. Starlight was started as a fork of Thrall server which is a fork of Starlet server. It has almost the same code as Thrall and Starlet and it was adapted to not use any other modules than Plack. Starlight is created for Unix-like systems but it should also work on Windows with some limitations. SEE ALSO Starlight, Thrall, Starlet, Starman LIMITATIONS Perl on Windows systems (MSWin32 and cygwin) emulates "fork" in perlfunc and "waitpid" in perlfunc functions and uses threads internally. See perlfork (MSWin32) and perlcygwin (cygwin) for details and limitations. It might be a better option to use on this system the server with explicit threads implementation, i.e. Thrall. For Cygwin the perl-libwin32 package is highly recommended, because of Win32::Process module which helps to terminate stalled worker processes. BUGS Windows There is a problem with Perl threads implementation which occurs on Windows systems (MSWin32). Cygwin version seems to be correct. Some requests can fail with the message: failed to set socket to nonblocking mode:An operation was attempted on something that is not a socket. or Bad file descriptor at (eval 24) line 4. This problem was introduced in Perl 5.16 and fixed in Perl 5.19.5. See https://rt.perl.org/rt3/Public/Bug/Display.html?id=119003 and https://github.com/dex4er/Thrall/issues/5 for more information about this issue. The server fails when a worker process calls "exit" in perlfunc function: Attempt to free unreferenced scalar: SV 0x293a76c, Perl interpreter: 0x22dcc0c at lib/Plack/Handler/Starlight.pm line 140. It means that Harakiri mode can't work and the server has to be started with --max-reqs-per-child=inf option. See https://rt.perl.org/Public/Bug/Display.html?id=40565 and https://github.com/dex4er/Starlight/issues/1 for more information about this issue. MacOS MacOS High Sierra and newer shows error: objc[12345]: +[__NSCFConstantString initialize] may have been in progress in another thread when fork() was called. objc[12345]: +[__NSCFConstantString initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. This error is caused by an added security to restrict multithreading. To override the limitation, run export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES before using this server. Reporting If you find the bug or want to implement new features, please report it at https://github.com/dex4er/Starlight/issues The code repository is available at http://github.com/dex4er/Starlight AUTHORS Piotr Roszatycki Based on Thrall by: Piotr Roszatycki Based on Starlet by: Kazuho Oku miyagawa kazeburo Some code based on Plack: Tatsuhiko Miyagawa Some code based on Net::Server::Daemonize: Jeremy Howard Paul Seamons LICENSE Copyright (c) 2013-2016, 2020, 2023 Piotr Roszatycki . This is free software; you can redistribute it and/or modify it under the same terms as perl itself. See http://dev.perl.org/licenses/artistic.html