… | |
… | |
16 | print "data> "; |
16 | print "data> "; |
17 | my $ev = $w->next; my $data = <STDIN>; |
17 | my $ev = $w->next; my $data = <STDIN>; |
18 | } |
18 | } |
19 | } |
19 | } |
20 | |
20 | |
21 | &loop; |
21 | loop; |
22 | |
22 | |
23 | =head1 DESCRIPTION |
23 | =head1 DESCRIPTION |
24 | |
24 | |
25 | This module enables you to create programs using the powerful Event model |
25 | This module enables you to create programs using the powerful Event model |
26 | (and module), while retaining the linear style known from simple or |
26 | (and module), while retaining the linear style known from simple or |
… | |
… | |
30 | (I<flavour>) (see L<Event>). The only difference between these and the |
30 | (I<flavour>) (see L<Event>). The only difference between these and the |
31 | watcher constructors from Event is that you do not specify a callback |
31 | watcher constructors from Event is that you do not specify a callback |
32 | function - it will be managed by this module. |
32 | function - it will be managed by this module. |
33 | |
33 | |
34 | Your application should just create all necessary coroutines and then call |
34 | Your application should just create all necessary coroutines and then call |
35 | Coro::Event->main. |
35 | Coro::Event::loop. |
36 | |
36 | |
37 | =over 4 |
37 | =over 4 |
38 | |
38 | |
39 | =cut |
39 | =cut |
40 | |
40 | |
41 | package Coro::Event; |
41 | package Coro::Event; |
42 | |
42 | |
43 | no warnings; |
43 | BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") } |
44 | |
44 | |
45 | use Carp; |
45 | use Carp; |
46 | |
46 | |
47 | use Coro; |
47 | use Coro; |
48 | use Event qw(unloop); # we are re-exporting this, cooool! |
48 | use Event qw(loop unloop); # we are re-exporting this, cooool! |
49 | |
49 | |
50 | use base 'Exporter'; |
50 | use base 'Exporter'; |
51 | |
51 | |
52 | @EXPORT = qw(loop unloop sweep); |
52 | @EXPORT = qw(loop unloop sweep reschedule); |
53 | |
53 | |
|
|
54 | BEGIN { |
54 | $VERSION = 0.45; |
55 | $VERSION = 0.8; |
|
|
56 | |
|
|
57 | local $^W = 0; # avoid redefine warning for Coro::ready; |
|
|
58 | |
|
|
59 | require DynaLoader; |
|
|
60 | push @ISA, 'DynaLoader'; |
|
|
61 | bootstrap Coro::Event $VERSION; |
|
|
62 | } |
55 | |
63 | |
56 | =item $w = Coro::Event->flavour(args...) |
64 | =item $w = Coro::Event->flavour(args...) |
57 | |
65 | |
58 | Create and return a watcher of the given type. |
66 | Create and return a watcher of the given type. |
59 | |
67 | |
… | |
… | |
75 | Create a watcher of the given type and immediately call it's next |
83 | Create a watcher of the given type and immediately call it's next |
76 | method. This is less efficient then calling the constructor once and the |
84 | method. This is less efficient then calling the constructor once and the |
77 | next method often, but it does save typing sometimes. |
85 | next method often, but it does save typing sometimes. |
78 | |
86 | |
79 | =cut |
87 | =cut |
80 | |
|
|
81 | #Event->add_hooks(prepare => sub { |
|
|
82 | # &Coro::cede while &Coro::nready; |
|
|
83 | # 1e6; |
|
|
84 | #}); |
|
|
85 | |
|
|
86 | sub std_cb { |
|
|
87 | my $w = $_[0]->w; |
|
|
88 | my $q = $w->private; |
|
|
89 | $q->[1] = $_[0]; |
|
|
90 | if ($q->[0]) { # somebody waiting? |
|
|
91 | $q->[0]->ready; |
|
|
92 | &Coro::schedule; |
|
|
93 | } else { |
|
|
94 | $w->stop; |
|
|
95 | } |
|
|
96 | } |
|
|
97 | |
88 | |
98 | for my $flavour (qw(idle var timer io signal)) { |
89 | for my $flavour (qw(idle var timer io signal)) { |
99 | push @EXPORT, "do_$flavour"; |
90 | push @EXPORT, "do_$flavour"; |
100 | my $new = \&{"Event::$flavour"}; |
91 | my $new = \&{"Event::$flavour"}; |
101 | my $class = "Coro::Event::$flavour"; |
92 | my $class = "Coro::Event::$flavour"; |
|
|
93 | my $type = $flavour eq "io" ? 1 : 0; |
102 | @{"${class}::ISA"} = (Coro::Event::, "Event::$flavour"); |
94 | @{"${class}::ISA"} = (Coro::Event::, "Event::$flavour"); |
103 | my $coronew = sub { |
95 | my $coronew = sub { |
104 | # how does one do method-call-by-name? |
96 | # how does one do method-call-by-name? |
105 | # my $w = $class->SUPER::$flavour(@_); |
97 | # my $w = $class->SUPER::$flavour(@_); |
106 | |
98 | |
107 | $_[0] eq Coro::Event:: |
99 | shift eq Coro::Event:: |
108 | or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method"; |
100 | or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method"; |
109 | |
101 | |
110 | my $q = []; # [$coro, $event] |
|
|
111 | my $w = $new->( |
102 | my $w = $new->($class, |
112 | desc => $flavour, |
103 | desc => $flavour, |
113 | @_, |
104 | @_, |
114 | cb => \&std_cb, |
105 | parked => 1, |
115 | ); |
106 | ); |
116 | $w->private($q); # using private as attribute is pretty useless... |
107 | _install_std_cb($w, $type); |
117 | bless $w, $class; # reblessing due to broken Event |
108 | bless $w, $class; # reblessing due to broken Event |
118 | }; |
109 | }; |
119 | *{ $flavour } = $coronew; |
110 | *{ $flavour } = $coronew; |
120 | *{"do_$flavour"} = sub { |
111 | *{"do_$flavour"} = sub { |
121 | unshift @_, Coro::Event::; |
112 | unshift @_, Coro::Event::; |
122 | my $e = (&$coronew)->next; |
113 | my $e = (&$coronew)->next; |
123 | $e->w->cancel; |
114 | $e->cancel; # $e = $e->w->cancel ($e == $e->w!) |
124 | $e; |
115 | $e; |
125 | }; |
116 | }; |
126 | } |
117 | } |
127 | |
118 | |
|
|
119 | # double calls to avoid stack-cloning ;() |
|
|
120 | # is about 10% slower, though. |
128 | sub next { |
121 | sub next($) { |
129 | my $w = $_[0]; |
122 | &Coro::schedule if &_next; $_[0]; |
130 | my $q = $w->private; |
|
|
131 | if ($q->[1]) { # event waiting? |
|
|
132 | $w->again unless $w->is_cancelled; |
|
|
133 | } elsif ($q->[0]) { |
|
|
134 | croak "only one coroutine can wait for an event"; |
|
|
135 | } else { |
|
|
136 | local $q->[0] = $Coro::current; |
|
|
137 | &Coro::schedule; |
|
|
138 | } |
|
|
139 | pop @$q; |
|
|
140 | } |
123 | } |
|
|
124 | |
|
|
125 | sub Coro::Event::w { $_[0] } |
|
|
126 | sub Coro::Event::prio { $_[0]{Coro::Event}[3] } |
|
|
127 | sub Coro::Event::hits { $_[0]{Coro::Event}[4] } |
|
|
128 | sub Coro::Event::got { $_[0]{Coro::Event}[5] } |
141 | |
129 | |
142 | =item sweep |
130 | =item sweep |
143 | |
131 | |
144 | Similar to Event::one_event and Event::sweep: The idle task is called once |
132 | Similar to Event::one_event and Event::sweep: The idle task is called once |
145 | (this has the effect of jumping back into the Event loop once to serve new |
133 | (this has the effect of jumping back into the Event loop once to serve new |
… | |
… | |
151 | into the Event dispatcher. |
139 | into the Event dispatcher. |
152 | |
140 | |
153 | =cut |
141 | =cut |
154 | |
142 | |
155 | sub sweep { |
143 | sub sweep { |
156 | one_event(0); # for now |
144 | Event::one_event(0); # for now |
157 | } |
145 | } |
158 | |
146 | |
159 | =item $result = loop([$timeout]) |
147 | =item $result = loop([$timeout]) |
160 | |
148 | |
161 | This is the version of C<loop> you should use instead of C<Event::loop> |
149 | This is the version of C<loop> you should use instead of C<Event::loop> |
… | |
… | |
169 | |
157 | |
170 | =end comment |
158 | =end comment |
171 | |
159 | |
172 | =cut |
160 | =cut |
173 | |
161 | |
|
|
162 | # no longer do something special - it's done internally now |
|
|
163 | |
174 | sub loop(;$) { |
164 | #sub loop(;$) { |
175 | local $Coro::idle = $Coro::current; |
165 | # #local $Coro::idle = $Coro::current; |
176 | Coro::schedule; # become idle task, which is implicitly ready |
166 | # #Coro::schedule; # become idle task, which is implicitly ready |
177 | &Event::loop; |
167 | # &Event::loop; |
178 | } |
168 | #} |
179 | |
169 | |
180 | =item unloop([$result]) |
170 | =item unloop([$result]) |
181 | |
171 | |
182 | Same as Event::unloop (provided here for your convinience only). |
172 | Same as Event::unloop (provided here for your convinience only). |
183 | |
173 | |
… | |
… | |
188 | Event::one_event; # inefficient |
178 | Event::one_event; # inefficient |
189 | Coro::schedule; |
179 | Coro::schedule; |
190 | } |
180 | } |
191 | }; |
181 | }; |
192 | |
182 | |
|
|
183 | # provide hooks for Coro::Timer |
|
|
184 | |
|
|
185 | package Coro::Timer; |
|
|
186 | |
|
|
187 | unless ($override) { |
|
|
188 | $override = 1; |
|
|
189 | *_new_timer = sub { |
|
|
190 | Event->timer(at => $_[0], cb => $_[1]); |
|
|
191 | }; |
|
|
192 | } |
|
|
193 | |
193 | 1; |
194 | 1; |
194 | |
195 | |
195 | =head1 AUTHOR |
196 | =head1 AUTHOR |
196 | |
197 | |
197 | Marc Lehmann <pcg@goof.com> |
198 | Marc Lehmann <pcg@goof.com> |