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Comparing Coro/Coro.pm (file contents):
Revision 1.42 by root, Tue Nov 6 20:37:20 2001 UTC vs.
Revision 1.58 by pcg, Fri Feb 13 23:17:41 2004 UTC

… …
30 30
31=cut 31=cut
32 32
33package Coro; 33package Coro;
34 34
35no warnings qw(uninitialized); 35BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") }
36 36
37use Coro::State; 37use Coro::State;
38 38
39use vars qw($idle $main $current);
40
39use base Exporter; 41use base Exporter;
40 42
41$VERSION = 0.52; 43$VERSION = 0.95;
42 44
43@EXPORT = qw(async cede schedule terminate current); 45@EXPORT = qw(async cede schedule terminate current);
44%EXPORT_TAGS = ( 46%EXPORT_TAGS = (
45 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], 47 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)],
46); 48);
… …
75 }; 77 };
76 } 78 }
77 79
78} 80}
79 81
82=over 4
83
80=item $main 84=item $main
81 85
82This coroutine represents the main program. 86This coroutine represents the main program.
83 87
84=cut 88=cut
85 89
86our $main = new Coro; 90$main = new Coro;
87 91
88=item $current (or as function: current) 92=item $current (or as function: current)
89 93
90The current coroutine (the last coroutine switched to). The initial value is C<$main> (of course). 94The current coroutine (the last coroutine switched to). The initial value is C<$main> (of course).
91 95
… …
94# maybe some other module used Coro::Specific before... 98# maybe some other module used Coro::Specific before...
95if ($current) { 99if ($current) {
96 $main->{specific} = $current->{specific}; 100 $main->{specific} = $current->{specific};
97} 101}
98 102
99our $current = $main; 103$current = $main;
100 104
101sub current() { $current } 105sub current() { $current }
102 106
103=item $idle 107=item $idle
104 108
… …
106implementation prints "FATAL: deadlock detected" and exits. 110implementation prints "FATAL: deadlock detected" and exits.
107 111
108=cut 112=cut
109 113
110# should be done using priorities :( 114# should be done using priorities :(
111our $idle = new Coro sub { 115$idle = new Coro sub {
112 print STDERR "FATAL: deadlock detected\n"; 116 print STDERR "FATAL: deadlock detected\n";
113 exit(51); 117 exit(51);
114}; 118};
115 119
116# this coroutine is necessary because a coroutine 120# this coroutine is necessary because a coroutine
117# cannot destroy itself. 121# cannot destroy itself.
118my @destroy; 122my @destroy;
119my $manager; 123my $manager;
120$manager = new Coro sub { 124$manager = new Coro sub {
121 while() { 125 while () {
122 # by overwriting the state object with the manager we destroy it 126 # by overwriting the state object with the manager we destroy it
123 # while still being able to schedule this coroutine (in case it has 127 # while still being able to schedule this coroutine (in case it has
124 # been readied multiple times. this is harmless since the manager 128 # been readied multiple times. this is harmless since the manager
125 # can be called as many times as neccessary and will always 129 # can be called as many times as neccessary and will always
126 # remove itself from the runqueue 130 # remove itself from the runqueue
… …
134 } 138 }
135}; 139};
136 140
137# static methods. not really. 141# static methods. not really.
138 142
143=back
144
139=head2 STATIC METHODS 145=head2 STATIC METHODS
140 146
141Static methods are actually functions that operate on the current process only. 147Static methods are actually functions that operate on the current process only.
142 148
143=over 4 149=over 4
… …
150 156
151 # create a new coroutine that just prints its arguments 157 # create a new coroutine that just prints its arguments
152 async { 158 async {
153 print "@_\n"; 159 print "@_\n";
154 } 1,2,3,4; 160 } 1,2,3,4;
155
156The coderef you submit MUST NOT be a closure that refers to variables
157in an outer scope. This does NOT work. Pass arguments into it instead.
158 161
159=cut 162=cut
160 163
161sub async(&@) { 164sub async(&@) {
162 my $pid = new Coro @_; 165 my $pid = new Coro @_;
… …
263 266
264=item $oldprio = $process->prio($newprio) 267=item $oldprio = $process->prio($newprio)
265 268
266Sets (or gets, if the argument is missing) the priority of the 269Sets (or gets, if the argument is missing) the priority of the
267process. Higher priority processes get run before lower priority 270process. Higher priority processes get run before lower priority
268processes. Priorities are smalled signed integer (currently -4 .. +3), 271processes. Priorities are small signed integers (currently -4 .. +3),
269that you can refer to using PRIO_xxx constants (use the import tag :prio 272that you can refer to using PRIO_xxx constants (use the import tag :prio
270to get then): 273to get then):
271 274
272 PRIO_MAX > PRIO_HIGH > PRIO_NORMAL > PRIO_LOW > PRIO_IDLE > PRIO_MIN 275 PRIO_MAX > PRIO_HIGH > PRIO_NORMAL > PRIO_LOW > PRIO_IDLE > PRIO_MIN
273 3 > 1 > 0 > -1 > -3 > -4 276 3 > 1 > 0 > -1 > -3 > -4
… …
321 324
3221; 3251;
323 326
324=head1 BUGS/LIMITATIONS 327=head1 BUGS/LIMITATIONS
325 328
326 - you must make very sure that no coro is still active on global destruction. 329 - you must make very sure that no coro is still active on global
327 very bad things might happen otherwise (usually segfaults). 330 destruction. very bad things might happen otherwise (usually segfaults).
331
328 - this module is not thread-safe. You should only ever use this module from 332 - this module is not thread-safe. You should only ever use this module
329 the same thread (this requirement might be loosened in the future to 333 from the same thread (this requirement might be losened in the future
330 allow per-thread schedulers, but Coro::State does not yet allow this). 334 to allow per-thread schedulers, but Coro::State does not yet allow
335 this).
331 336
332=head1 SEE ALSO 337=head1 SEE ALSO
333 338
334L<Coro::Channel>, L<Coro::Cont>, L<Coro::Specific>, L<Coro::Semaphore>, 339L<Coro::Channel>, L<Coro::Cont>, L<Coro::Specific>, L<Coro::Semaphore>,
335L<Coro::Signal>, L<Coro::State>, L<Coro::Event>, L<Coro::RWLock>, 340L<Coro::Signal>, L<Coro::State>, L<Coro::Timer>, L<Coro::Event>,
336L<Coro::Handle>, L<Coro::Socket>. 341L<Coro::L<Coro::RWLock>, Handle>, L<Coro::Socket>.
337 342
338=head1 AUTHOR 343=head1 AUTHOR
339 344
340 Marc Lehmann <pcg@goof.com> 345 Marc Lehmann <pcg@goof.com>
341 http://www.goof.com/pcg/marc/ 346 http://www.goof.com/pcg/marc/

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