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/cvs/cvsroot/Coro/Coro.pm
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Comparing cvsroot/Coro/Coro.pm (file contents):
Revision 1.133 by root, Fri Sep 21 01:23:58 2007 UTC vs.
Revision 1.139 by root, Thu Sep 27 15:52:30 2007 UTC

… …
50 50
51our $idle; # idle handler 51our $idle; # idle handler
52our $main; # main coroutine 52our $main; # main coroutine
53our $current; # current coroutine 53our $current; # current coroutine
54 54
55our $VERSION = '3.7'; 55our $VERSION = '3.8';
56 56
57our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); 57our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub);
58our %EXPORT_TAGS = ( 58our %EXPORT_TAGS = (
59 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)],
60); 60);
… …
155 # call all destruction callbacks 155 # call all destruction callbacks
156 $_->(@{$self->{status}}) 156 $_->(@{$self->{status}})
157 for @{(delete $self->{destroy_cb}) || []}; 157 for @{(delete $self->{destroy_cb}) || []};
158} 158}
159 159
160sub _do_trace_sub {
161 &{$current->{_trace_sub_cb}}
162}
163
164sub _do_trace_line {
165 &{$current->{_trace_line_cb}}
166}
167
160# this coroutine is necessary because a coroutine 168# this coroutine is necessary because a coroutine
161# cannot destroy itself. 169# cannot destroy itself.
162my @destroy; 170my @destroy;
163my $manager; 171my $manager;
164 172
… …
227 235
228If you are concerned about pooled coroutines growing a lot because a 236If you are concerned about pooled coroutines growing a lot because a
229single C<async_pool> used a lot of stackspace you can e.g. C<async_pool 237single C<async_pool> used a lot of stackspace you can e.g. C<async_pool
230{ terminate }> once per second or so to slowly replenish the pool. In 238{ terminate }> once per second or so to slowly replenish the pool. In
231addition to that, when the stacks used by a handler grows larger than 16kb 239addition to that, when the stacks used by a handler grows larger than 16kb
232(adjustable with $Coro::MAX_POOL_RSS) it will also exit. 240(adjustable with $Coro::POOL_RSS) it will also exit.
233 241
234=cut 242=cut
235 243
236our $POOL_SIZE = 8; 244our $POOL_SIZE = 8;
237our $MAX_POOL_RSS = 16 * 1024; 245our $POOL_RSS = 16 * 1024;
238our @pool; 246our @async_pool;
239 247
240sub pool_handler { 248sub pool_handler {
249 my $cb;
250
241 while () { 251 while () {
242 $current->{desc} = "[async_pool]";
243
244 eval { 252 eval {
245 my ($cb, @arg) = @{ delete $current->{_invoke} or return }; 253 while () {
246 $cb->(@arg); 254 _pool_1 $cb;
255 &$cb;
256 _pool_2 $cb;
257 &schedule;
258 }
247 }; 259 };
260
261 last if $@ eq "\3terminate\2\n";
248 warn $@ if $@; 262 warn $@ if $@;
249
250 last if @pool >= $POOL_SIZE || $current->rss >= $MAX_POOL_RSS;
251
252 push @pool, $current;
253 $current->{desc} = "[async_pool idle]";
254 $current->save (Coro::State::SAVE_DEF);
255 $current->prio (0);
256 schedule;
257 } 263 }
258} 264}
259 265
260sub async_pool(&@) { 266sub async_pool(&@) {
261 # this is also inlined into the unlock_scheduler 267 # this is also inlined into the unlock_scheduler
262 my $coro = (pop @pool) || new Coro \&pool_handler;; 268 my $coro = (pop @async_pool) || new Coro \&pool_handler;
263 269
264 $coro->{_invoke} = [@_]; 270 $coro->{_invoke} = [@_];
265 $coro->ready; 271 $coro->ready;
266 272
267 $coro 273 $coro
… …
537# inside an event callback. 543# inside an event callback.
538our $unblock_scheduler = new Coro sub { 544our $unblock_scheduler = new Coro sub {
539 while () { 545 while () {
540 while (my $cb = pop @unblock_queue) { 546 while (my $cb = pop @unblock_queue) {
541 # this is an inlined copy of async_pool 547 # this is an inlined copy of async_pool
542 my $coro = (pop @pool or new Coro \&pool_handler); 548 my $coro = (pop @async_pool) || new Coro \&pool_handler;
543 549
544 $coro->{_invoke} = $cb; 550 $coro->{_invoke} = $cb;
545 $coro->ready; 551 $coro->ready;
546 cede; # for short-lived callbacks, this reduces pressure on the coro pool 552 cede; # for short-lived callbacks, this reduces pressure on the coro pool
547 } 553 }

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