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package Coro::MakeMaker; |
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|
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BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") } |
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|
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use Config; |
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use base 'Exporter'; |
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|
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@EXPORT_OK = qw(&coro_args $installsitearch); |
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|
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my %opt; |
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|
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for my $opt (split /:+/, $ENV{PERL_MM_OPT}) { |
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my ($k,$v) = split /=/, $opt; |
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$opt{$k} = $v; |
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} |
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|
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my $extra = $Config{sitearch}; |
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|
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$extra =~ s/$Config{prefix}/$opt{PREFIX}/ if |
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exists $opt{PREFIX}; |
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|
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for my $d ($extra, @INC) { |
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if (-e "$d/Coro/CoroAPI.h") { |
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$installsitearch = $d; |
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last; |
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} |
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} |
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|
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sub coro_args { |
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my %arg = @_; |
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$arg{INC} .= " -I$installsitearch/Coro"; |
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%arg; |
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} |
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|
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1; |
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__END__ |
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|
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=head1 NAME |
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|
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Coro::MakeMaker - MakeMaker glue for the C-level Coro API |
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|
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=head1 SYNOPSIS |
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|
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This allows you to control coroutines from C level. |
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|
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=head1 DESCRIPTION |
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|
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For optimal performance, hook into Coro at the C-level. You'll need |
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to make changes to your C<Makefile.PL> and add code to your C<xs> / |
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C<c> file(s). |
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|
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=head1 WARNING |
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|
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When you hook in at the C-level you get a I<huge> performance gain, |
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but you also reduce the chances that your code will work unmodified |
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with newer versions of C<perl> or C<Coro>. This may or may not be a |
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problem. Just be aware, and set your expectations accordingly. |
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|
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=head1 HOW TO |
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|
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=head2 Makefile.PL |
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|
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use Coro::MakeMaker qw(coro_args); |
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|
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# ... set up %args ... |
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|
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WriteMakefile(coro_args(%args)); |
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|
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=head2 XS |
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|
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#include "CoroAPI.h" |
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|
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BOOT: |
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I_CORO_API("YourModule"); |
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|
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=head2 API |
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|
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/* perl-related */ |
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#define TRANSFER_SAVE_DEFAV /* save @_ */ |
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#define TRANSFER_SAVE_DEFSV /* save $_ */ |
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#define TRANSFER_SAVE_ERRSV /* save $@ */ |
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/* c-related */ |
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#define TRANSFER_SAVE_CCTXT /* save C context (stack) */ |
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#define TRANSFER_LAZY_STACK /* try to allocate stacks lazily */ |
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|
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#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV | TRANSFER_SAVE_DEFSV \ |
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| TRANSFER_SAVE_ERRSV | TRANSFER_SAVE_CCTXT) |
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|
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#define CORO_TRANSFER(prev,next,flags) /* transfer from prev to next */ |
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#define CORO_SCHEDULE /* like Coro::schedule */ |
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#define CORO_CEDE /* like Coro::cede */ |
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#define CORO_READY(coro) /* like $coro->ready */ |
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#define CORO_NREADY /* # of procs in runqueue */ |
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#define CORO_CURRENT /* returns $Coro::current */ |
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|
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=cut |
