ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro.pm
(Generate patch)

Comparing Coro/Coro.pm (file contents):
Revision 1.193 by root, Sun Jun 29 00:28:17 2008 UTC vs.
Revision 1.198 by root, Sun Sep 21 01:23:26 2008 UTC

16 cede; # yield to coroutine 16 cede; # yield to coroutine
17 print "3\n"; 17 print "3\n";
18 cede; # and again 18 cede; # and again
19 19
20 # use locking 20 # use locking
21 use Coro::Semaphore;
21 my $lock = new Coro::Semaphore; 22 my $lock = new Coro::Semaphore;
22 my $locked; 23 my $locked;
23 24
24 $lock->down; 25 $lock->down;
25 $locked = 1; 26 $locked = 1;
66 67
67our $idle; # idle handler 68our $idle; # idle handler
68our $main; # main coroutine 69our $main; # main coroutine
69our $current; # current coroutine 70our $current; # current coroutine
70 71
71our $VERSION = 4.743; 72our $VERSION = 4.746;
72 73
73our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); 74our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub);
74our %EXPORT_TAGS = ( 75our %EXPORT_TAGS = (
75 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], 76 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)],
76); 77);
81=item $Coro::main 82=item $Coro::main
82 83
83This variable stores the coroutine object that represents the main 84This variable stores the coroutine object that represents the main
84program. While you cna C<ready> it and do most other things you can do to 85program. While you cna C<ready> it and do most other things you can do to
85coroutines, it is mainly useful to compare again C<$Coro::current>, to see 86coroutines, it is mainly useful to compare again C<$Coro::current>, to see
86wether you are running in the main program or not. 87whether you are running in the main program or not.
87 88
88=cut 89=cut
89 90
90$main = new Coro; 91$main = new Coro;
91 92
309This makes C<schedule> I<the> generic method to use to block the current 310This makes C<schedule> I<the> generic method to use to block the current
310coroutine and wait for events: first you remember the current coroutine in 311coroutine and wait for events: first you remember the current coroutine in
311a variable, then arrange for some callback of yours to call C<< ->ready 312a variable, then arrange for some callback of yours to call C<< ->ready
312>> on that once some event happens, and last you call C<schedule> to put 313>> on that once some event happens, and last you call C<schedule> to put
313yourself to sleep. Note that a lot of things can wake your coroutine up, 314yourself to sleep. Note that a lot of things can wake your coroutine up,
314so you need to check wether the event indeed happened, e.g. by storing the 315so you need to check whether the event indeed happened, e.g. by storing the
315status in a variable. 316status in a variable.
316 317
317The canonical way to wait on external events is this: 318The canonical way to wait on external events is this:
318 319
319 { 320 {
358Kills/terminates/cancels all coroutines except the currently running 359Kills/terminates/cancels all coroutines except the currently running
359one. This is useful after a fork, either in the child or the parent, as 360one. This is useful after a fork, either in the child or the parent, as
360usually only one of them should inherit the running coroutines. 361usually only one of them should inherit the running coroutines.
361 362
362Note that while this will try to free some of the main programs resources, 363Note that while this will try to free some of the main programs resources,
363you cnanot free all of them, so if a coroutine that is not the main 364you cannot free all of them, so if a coroutine that is not the main
364program calls this function, there will be some one-time resource leak. 365program calls this function, there will be some one-time resource leak.
365 366
366=cut 367=cut
367 368
368sub terminate { 369sub terminate {
417once all the coroutines of higher priority and all coroutines of the same 418once all the coroutines of higher priority and all coroutines of the same
418priority that were put into the ready queue earlier have been resumed. 419priority that were put into the ready queue earlier have been resumed.
419 420
420=item $is_ready = $coroutine->is_ready 421=item $is_ready = $coroutine->is_ready
421 422
422Return wether the coroutine is currently the ready queue or not, 423Return whether the coroutine is currently the ready queue or not,
423 424
424=item $coroutine->cancel (arg...) 425=item $coroutine->cancel (arg...)
425 426
426Terminates the given coroutine and makes it return the given arguments as 427Terminates the given coroutine and makes it return the given arguments as
427status (default: the empty list). Never returns if the coroutine is the 428status (default: the empty list). Never returns if the coroutine is the

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines