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Comparing Coro/Coro.pm (file contents):
Revision 1.58 by pcg, Fri Feb 13 23:17:41 2004 UTC vs.
Revision 1.81 by root, Fri Nov 24 11:36:57 2006 UTC

… …
30 30
31=cut 31=cut
32 32
33package Coro; 33package Coro;
34 34
35BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") } 35use strict;
36no warnings "uninitialized";
36 37
37use Coro::State; 38use Coro::State;
38 39
39use vars qw($idle $main $current);
40
41use base Exporter; 40use base Exporter::;
42 41
42our $idle; # idle coroutine
43our $main; # main coroutine
44our $current; # current coroutine
45
43$VERSION = 0.95; 46our $VERSION = '2.5';
44 47
45@EXPORT = qw(async cede schedule terminate current); 48our @EXPORT = qw(async cede schedule terminate current);
46%EXPORT_TAGS = ( 49our %EXPORT_TAGS = (
47 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], 50 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)],
48); 51);
49@EXPORT_OK = @{$EXPORT_TAGS{prio}}; 52our @EXPORT_OK = @{$EXPORT_TAGS{prio}};
50 53
51{ 54{
52 my @async; 55 my @async;
53 my $init; 56 my $init;
54 57
55 # this way of handling attributes simply is NOT scalable ;() 58 # this way of handling attributes simply is NOT scalable ;()
56 sub import { 59 sub import {
60 no strict 'refs';
61
57 Coro->export_to_level(1, @_); 62 Coro->export_to_level(1, @_);
63
58 my $old = *{(caller)[0]."::MODIFY_CODE_ATTRIBUTES"}{CODE}; 64 my $old = *{(caller)[0]."::MODIFY_CODE_ATTRIBUTES"}{CODE};
59 *{(caller)[0]."::MODIFY_CODE_ATTRIBUTES"} = sub { 65 *{(caller)[0]."::MODIFY_CODE_ATTRIBUTES"} = sub {
60 my ($package, $ref) = (shift, shift); 66 my ($package, $ref) = (shift, shift);
61 my @attrs; 67 my @attrs;
62 for (@_) { 68 for (@_) {
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130 # remove itself from the runqueue 136 # remove itself from the runqueue
131 while (@destroy) { 137 while (@destroy) {
132 my $coro = pop @destroy; 138 my $coro = pop @destroy;
133 $coro->{status} ||= []; 139 $coro->{status} ||= [];
134 $_->ready for @{delete $coro->{join} || []}; 140 $_->ready for @{delete $coro->{join} || []};
141
142 # the next line destroys the _coro_state, but keeps the
143 # process itself intact (we basically make it a zombie
144 # process that always runs the manager thread, so it's possible
145 # to transfer() to this process).
135 $coro->{_coro_state} = $manager->{_coro_state}; 146 $coro->{_coro_state} = $manager->{_coro_state};
136 } 147 }
137 &schedule; 148 &schedule;
138 } 149 }
139}; 150};
… …
152 163
153Create a new asynchronous process and return it's process object 164Create a new asynchronous process and return it's process object
154(usually unused). When the sub returns the new process is automatically 165(usually unused). When the sub returns the new process is automatically
155terminated. 166terminated.
156 167
168When the coroutine dies, the program will exit, just as in the main
169program.
170
157 # create a new coroutine that just prints its arguments 171 # create a new coroutine that just prints its arguments
158 async { 172 async {
159 print "@_\n"; 173 print "@_\n";
160 } 1,2,3,4; 174 } 1,2,3,4;
161 175
… …
184 198
185=cut 199=cut
186 200
187=item terminate [arg...] 201=item terminate [arg...]
188 202
189Terminates the current process. 203Terminates the current process with the given status values (see L<cancel>).
190
191Future versions of this function will allow result arguments.
192 204
193=cut 205=cut
194 206
195sub terminate { 207sub terminate {
196 $current->{status} = [@_];
197 $current->cancel; 208 $current->cancel (@_);
198 &schedule;
199 die; # NORETURN
200} 209}
201 210
202=back 211=back
203 212
204# dynamic methods 213# dynamic methods
… …
223} 232}
224 233
225sub new { 234sub new {
226 my $class = shift; 235 my $class = shift;
227 bless { 236 bless {
228 _coro_state => (new Coro::State $_[0] && \&_newcoro, @_), 237 _coro_state => (new Coro::State \&_newcoro, @_),
229 }, $class; 238 }, $class;
230} 239}
231 240
232=item $process->ready 241=item $process->ready
233 242
234Put the given process into the ready queue. 243Put the given process into the ready queue.
235 244
236=cut 245=cut
237 246
238=item $process->cancel 247=item $process->cancel (arg...)
239 248
240Like C<terminate>, but terminates the specified process instead. 249Terminates the given process and makes it return the given arguments as
250status (default: the empty list).
241 251
242=cut 252=cut
243 253
244sub cancel { 254sub cancel {
255 my $self = shift;
256 $self->{status} = [@_];
245 push @destroy, $_[0]; 257 push @destroy, $self;
246 $manager->ready; 258 $manager->ready;
247 &schedule if $current == $_[0]; 259 &schedule if $current == $self;
248} 260}
249 261
250=item $process->join 262=item $process->join
251 263
252Wait until the coroutine terminates and return any values given to the 264Wait until the coroutine terminates and return any values given to the
253C<terminate> function. C<join> can be called multiple times from multiple 265C<terminate> or C<cancel> functions. C<join> can be called multiple times
254processes. 266from multiple processes.
255 267
256=cut 268=cut
257 269
258sub join { 270sub join {
259 my $self = shift; 271 my $self = shift;
… …
334 to allow per-thread schedulers, but Coro::State does not yet allow 346 to allow per-thread schedulers, but Coro::State does not yet allow
335 this). 347 this).
336 348
337=head1 SEE ALSO 349=head1 SEE ALSO
338 350
339L<Coro::Channel>, L<Coro::Cont>, L<Coro::Specific>, L<Coro::Semaphore>, 351Support/Utility: L<Coro::Cont>, L<Coro::Specific>, L<Coro::State>, L<Coro::Util>.
340L<Coro::Signal>, L<Coro::State>, L<Coro::Timer>, L<Coro::Event>, 352
341L<Coro::L<Coro::RWLock>, Handle>, L<Coro::Socket>. 353Locking/IPC: L<Coro::Signal>, L<Coro::Channel>, L<Coro::Semaphore>, L<Coro::SemaphoreSet>, L<Coro::RWLock>.
354
355Event/IO: L<Coro::Timer>, L<Coro::Event>, L<Coro::Handle>, L<Coro::Socket>, L<Coro::Select>.
356
357Embedding: L<Coro:MakeMaker>
342 358
343=head1 AUTHOR 359=head1 AUTHOR
344 360
345 Marc Lehmann <pcg@goof.com> 361 Marc Lehmann <schmorp@schmorp.de>
346 http://www.goof.com/pcg/marc/ 362 http://home.schmorp.de/
347 363
348=cut 364=cut
349 365

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