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Comparing cvsroot/Coro/Coro.pm (file contents):
Revision 1.97 by root, Mon Dec 4 13:47:56 2006 UTC vs.
Revision 1.101 by root, Fri Dec 29 08:36:34 2006 UTC

… …
18 18
19 cede; 19 cede;
20 20
21=head1 DESCRIPTION 21=head1 DESCRIPTION
22 22
23This module collection manages coroutines. Coroutines are similar to 23This module collection manages coroutines. Coroutines are similar
24threads but don't run in parallel. 24to threads but don't run in parallel at the same time even on SMP
25machines. The specific flavor of coroutine use din this module also
26guarentees you that it will not switch between coroutines unless
27necessary, at easily-identified points in your program, so locking and
28parallel access are rarely an issue, making coroutine programming much
29safer than threads programming.
25 30
31(Perl, however, does not natively support real threads but instead does a
32very slow and memory-intensive emulation of processes using threads. This
33is a performance win on Windows machines, and a loss everywhere else).
34
26In this module, coroutines are defined as "callchain + lexical variables 35In this module, coroutines are defined as "callchain + lexical variables +
27+ @_ + $_ + $@ + $^W + C stack), that is, a coroutine has it's own 36@_ + $_ + $@ + $/ + C stack), that is, a coroutine has its own callchain,
28callchain, it's own set of lexicals and it's own set of perl's most 37its own set of lexicals and its own set of perls most important global
29important global variables. 38variables.
30 39
31=cut 40=cut
32 41
33package Coro; 42package Coro;
34 43
… …
41 50
42our $idle; # idle handler 51our $idle; # idle handler
43our $main; # main coroutine 52our $main; # main coroutine
44our $current; # current coroutine 53our $current; # current coroutine
45 54
46our $VERSION = '3.01'; 55our $VERSION = '3.3';
47 56
48our @EXPORT = qw(async cede schedule terminate current unblock_sub); 57our @EXPORT = qw(async cede schedule terminate current unblock_sub);
49our %EXPORT_TAGS = ( 58our %EXPORT_TAGS = (
50 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], 59 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)],
51); 60);
… …
144 # been readied multiple times. this is harmless since the manager 153 # been readied multiple times. this is harmless since the manager
145 # can be called as many times as neccessary and will always 154 # can be called as many times as neccessary and will always
146 # remove itself from the runqueue 155 # remove itself from the runqueue
147 while (@destroy) { 156 while (@destroy) {
148 my $coro = pop @destroy; 157 my $coro = pop @destroy;
158
149 $coro->{status} ||= []; 159 $coro->{status} ||= [];
160
150 $_->ready for @{delete $coro->{join} || []}; 161 $_->ready for @{(delete $coro->{join} ) || []};
162 $_->(@{$coro->{status}}) for @{(delete $coro->{destroy_cb}) || []};
151 163
152 # the next line destroys the coro state, but keeps the 164 # the next line destroys the coro state, but keeps the
153 # coroutine itself intact (we basically make it a zombie 165 # coroutine itself intact (we basically make it a zombie
154 # coroutine that always runs the manager thread, so it's possible 166 # coroutine that always runs the manager thread, so it's possible
155 # to transfer() to this coroutine). 167 # to transfer() to this coroutine).
… …
304 unless ($self->{status}) { 316 unless ($self->{status}) {
305 push @{$self->{join}}, $current; 317 push @{$self->{join}}, $current;
306 &schedule; 318 &schedule;
307 } 319 }
308 wantarray ? @{$self->{status}} : $self->{status}[0]; 320 wantarray ? @{$self->{status}} : $self->{status}[0];
321}
322
323=item $coroutine->on_destroy (\&cb)
324
325Registers a callback that is called when this coroutine gets destroyed,
326but before it is joined. The callback gets passed the terminate arguments,
327if any.
328
329=cut
330
331sub on_destroy {
332 my ($self, $cb) = @_;
333
334 push @{ $self->{destroy_cb} }, $cb;
309} 335}
310 336
311=item $oldprio = $coroutine->prio ($newprio) 337=item $oldprio = $coroutine->prio ($newprio)
312 338
313Sets (or gets, if the argument is missing) the priority of the 339Sets (or gets, if the argument is missing) the priority of the

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