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Comparing Coro/Coro.pm (file contents):
Revision 1.13 by root, Tue Jul 17 00:24:14 2001 UTC vs.
Revision 1.20 by root, Sat Jul 21 18:21:45 2001 UTC

… …
18 18
19 yield; 19 yield;
20 20
21=head1 DESCRIPTION 21=head1 DESCRIPTION
22 22
23This module collection manages coroutines. Coroutines are similar to
24Threads but don't run in parallel.
25
26This module is still experimental, see the BUGS section below.
27
28In this module, coroutines are defined as "callchain + lexical variables
29+ @_ + $_ + $@ + $^W), that is, a coroutine has it's own callchain, it's
30own set of lexicals and it's own set of perl's most important global
31variables.
32
23=cut 33=cut
24 34
25package Coro; 35package Coro;
26 36
27use Coro::State; 37use Coro::State;
28 38
29use base Exporter; 39use base Exporter;
30 40
31$VERSION = 0.05; 41$VERSION = 0.10;
32 42
33@EXPORT = qw(async yield schedule terminate); 43@EXPORT = qw(async yield schedule terminate current);
34@EXPORT_OK = qw($current); 44@EXPORT_OK = qw($current);
35 45
36{ 46{
37 use subs 'async';
38
39 my @async; 47 my @async;
40 48
41 # this way of handling attributes simply is NOT scalable ;() 49 # this way of handling attributes simply is NOT scalable ;()
42 sub import { 50 sub import {
43 Coro->export_to_level(1, @_); 51 Coro->export_to_level(1, @_);
… …
47 my @attrs; 55 my @attrs;
48 for (@_) { 56 for (@_) {
49 if ($_ eq "Coro") { 57 if ($_ eq "Coro") {
50 push @async, $ref; 58 push @async, $ref;
51 } else { 59 } else {
52 push @attrs, @_; 60 push @attrs, $_;
53 } 61 }
54 } 62 }
55 return $old ? $old->($package, $name, @attrs) : @attrs; 63 return $old ? $old->($package, $ref, @attrs) : @attrs;
56 }; 64 };
57 } 65 }
58 66
59 sub INIT { 67 sub INIT {
60 async pop @async while @async; 68 &async(pop @async) while @async;
61 } 69 }
62} 70}
63 71
64=item $main 72=item $main
65 73
… …
67 75
68=cut 76=cut
69 77
70our $main = new Coro; 78our $main = new Coro;
71 79
72=item $current 80=item $current (or as function: current)
73 81
74The current coroutine (the last coroutine switched to). The initial value is C<$main> (of course). 82The current coroutine (the last coroutine switched to). The initial value is C<$main> (of course).
75 83
76=cut 84=cut
77 85
… …
79if ($current) { 87if ($current) {
80 $main->{specific} = $current->{specific}; 88 $main->{specific} = $current->{specific};
81} 89}
82 90
83our $current = $main; 91our $current = $main;
92
93sub current() { $current }
84 94
85=item $idle 95=item $idle
86 96
87The coroutine to switch to when no other coroutine is running. The default 97The coroutine to switch to when no other coroutine is running. The default
88implementation prints "FATAL: deadlock detected" and exits. 98implementation prints "FATAL: deadlock detected" and exits.
… …
94 print STDERR "FATAL: deadlock detected\n"; 104 print STDERR "FATAL: deadlock detected\n";
95 exit(51); 105 exit(51);
96}; 106};
97 107
98# we really need priorities... 108# we really need priorities...
99## my @ready; #d#
100our @ready = (); # the ready queue. hehe, rather broken ;) 109my @ready; # the ready queue. hehe, rather broken ;)
101 110
102# static methods. not really. 111# static methods. not really.
103 112
104=head2 STATIC METHODS 113=head2 STATIC METHODS
105 114
… …
216 225
217=cut 226=cut
218 227
2191; 2281;
220 229
230=head1 BUGS/LIMITATIONS
231
232 - could be faster, especially when the core would introduce special
233 support for coroutines (like it does for threads).
234 - there is still a memleak on coroutine termination that I could not
235 identify. Could be as small as a single SV.
236 - this module is not well-tested.
237 - if variables or arguments "disappear" (become undef) or become
238 corrupted please contact the author so he cen iron out the
239 remaining bugs.
240 - this module is not thread-safe. You must only ever use this module from
241 the same thread (this requirement might be loosened in the future to
242 allow per-thread schedulers, but Coro::State does not yet allow this).
243
221=head1 SEE ALSO 244=head1 SEE ALSO
222 245
223L<Coro::Channel>, L<Coro::Cont>, L<Coro::Specific>, L<Coro::Semaphore>, 246L<Coro::Channel>, L<Coro::Cont>, L<Coro::Specific>, L<Coro::Semaphore>,
224L<Coro::Signal>, L<Coro::State>, L<Coro::Event>. 247L<Coro::Signal>, L<Coro::State>, L<Coro::Event>.
225 248

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