… | |
… | |
37 | Please note that even programs or modules (such as |
37 | Please note that even programs or modules (such as |
38 | L<Coro::Handle|Coro::Handle>) that use "traditional" |
38 | L<Coro::Handle|Coro::Handle>) that use "traditional" |
39 | event-based/continuation style will run more efficient with this module |
39 | event-based/continuation style will run more efficient with this module |
40 | then when using only Event. |
40 | then when using only Event. |
41 | |
41 | |
|
|
42 | =head1 WARNING |
|
|
43 | |
|
|
44 | Please note that Event does not support coroutines or threads. That |
|
|
45 | means that you B<MUST NOT> block in an event callback. Again: In Event |
|
|
46 | callbacks, you I<must never ever> call a Coroutine fucntion that blocks |
|
|
47 | the current coroutine. |
|
|
48 | |
|
|
49 | While this seems to work superficially, it will eventually cause memory |
|
|
50 | corruption. |
|
|
51 | |
|
|
52 | =head1 FUNCTIONS |
|
|
53 | |
42 | =over 4 |
54 | =over 4 |
43 | |
55 | |
44 | =cut |
56 | =cut |
45 | |
57 | |
46 | package Coro::Event; |
58 | package Coro::Event; |
47 | |
59 | |
48 | BEGIN { eval { require warnings } && warnings->unimport ("uninitialized") } |
60 | no warnings; |
49 | |
61 | |
50 | use Carp; |
62 | use Carp; |
51 | no warnings; |
63 | no warnings; |
52 | |
64 | |
53 | use Coro; |
65 | use Coro; |
|
|
66 | use Coro::Timer; |
54 | use Event qw(loop unloop); # we are re-exporting this, cooool! |
67 | use Event qw(loop unloop); # we are re-exporting this, cooool! |
55 | |
68 | |
56 | use XSLoader; |
69 | use XSLoader; |
57 | |
70 | |
58 | use base Exporter::; |
71 | use base Exporter::; |
59 | |
72 | |
60 | our @EXPORT = qw(loop unloop sweep reschedule); |
73 | our @EXPORT = qw(loop unloop sweep); |
61 | |
74 | |
62 | BEGIN { |
75 | BEGIN { |
63 | our $VERSION = 1.9; |
76 | our $VERSION = 1.9; |
64 | |
77 | |
65 | local $^W = 0; # avoid redefine warning for Coro::ready; |
78 | local $^W = 0; # avoid redefine warning for Coro::ready; |
66 | XSLoader::load __PACKAGE__, $VERSION; |
79 | XSLoader::load __PACKAGE__, $VERSION; |
67 | } |
80 | } |
68 | |
81 | |
69 | =item $w = Coro::Event->flavour(args...) |
82 | =item $w = Coro::Event->flavour (args...) |
70 | |
83 | |
71 | Create and return a watcher of the given type. |
84 | Create and return a watcher of the given type. |
72 | |
85 | |
73 | Examples: |
86 | Examples: |
74 | |
87 | |
… | |
… | |
81 | |
94 | |
82 | Return the next event of the event queue of the watcher. |
95 | Return the next event of the event queue of the watcher. |
83 | |
96 | |
84 | =cut |
97 | =cut |
85 | |
98 | |
86 | =item do_flavour(args...) |
99 | =item do_flavour args... |
87 | |
100 | |
88 | Create a watcher of the given type and immediately call it's next |
101 | Create a watcher of the given type and immediately call it's next |
89 | method. This is less efficient then calling the constructor once and the |
102 | method. This is less efficient then calling the constructor once and the |
90 | next method often, but it does save typing sometimes. |
103 | next method often, but it does save typing sometimes. |
91 | |
104 | |
… | |
… | |
103 | |
116 | |
104 | shift eq Coro::Event:: |
117 | shift eq Coro::Event:: |
105 | or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method"; |
118 | or croak "event constructor \"Coro::Event->$flavour\" must be called as a static method"; |
106 | |
119 | |
107 | my $w = $new->($class, |
120 | my $w = $new->($class, |
108 | desc => $flavour, |
121 | desc => $flavour, |
109 | @_, |
122 | @_, |
110 | parked => 1, |
123 | parked => 1, |
111 | ); |
124 | ); |
|
|
125 | |
112 | _install_std_cb($w, $type); |
126 | _install_std_cb $w, $type; |
113 | bless $w, $class; # reblessing due to broken Event |
127 | |
|
|
128 | # reblessing due to Event being broken |
|
|
129 | bless $w, $class |
114 | }; |
130 | }; |
115 | *{ $flavour } = $coronew; |
131 | *{ $flavour } = $coronew; |
116 | *{"do_$flavour"} = sub { |
132 | *{"do_$flavour"} = sub { |
117 | unshift @_, Coro::Event::; |
133 | unshift @_, Coro::Event::; |
118 | my $e = (&$coronew)->next; |
134 | @_ = &$coronew; |
119 | $e->cancel; # $e === $e->w |
135 | &Coro::schedule while &_next; |
120 | $e; |
136 | $_[0]->cancel; |
|
|
137 | &_event |
121 | }; |
138 | }; |
122 | } |
139 | } |
123 | |
140 | |
124 | # double calls to avoid stack-cloning ;() |
141 | # do schedule in perl to avoid forcing a stack allocation. |
125 | # is about 10% slower, though. |
142 | # this is about 10% slower, though. |
126 | sub next($) { |
143 | sub next($) { |
127 | &Coro::schedule if &_next; $_[0]; |
144 | &Coro::schedule while &_next; |
|
|
145 | |
|
|
146 | &_event |
128 | } |
147 | } |
129 | |
148 | |
130 | sub Coro::Event::w { $_[0] } |
149 | sub Coro::Event::w { $_[0] } |
131 | sub Coro::Event::prio { $_[0]{Coro::Event}[3] } |
150 | sub Coro::Event::prio { $_[0]{Coro::Event}[3] } |
132 | sub Coro::Event::hits { $_[0]{Coro::Event}[4] } |
151 | sub Coro::Event::hits { $_[0]{Coro::Event}[4] } |
… | |
… | |
144 | into the Event dispatcher. |
163 | into the Event dispatcher. |
145 | |
164 | |
146 | =cut |
165 | =cut |
147 | |
166 | |
148 | sub sweep { |
167 | sub sweep { |
149 | Event::one_event(0); # for now |
168 | Event::one_event 0; # for now |
150 | } |
169 | } |
151 | |
170 | |
152 | =item $result = loop([$timeout]) |
171 | =item $result = loop([$timeout]) |
153 | |
172 | |
154 | This is the version of C<loop> you should use instead of C<Event::loop> |
173 | This is the version of C<loop> you should use instead of C<Event::loop> |
… | |
… | |
159 | |
178 | |
160 | Same as Event::unloop (provided here for your convinience only). |
179 | Same as Event::unloop (provided here for your convinience only). |
161 | |
180 | |
162 | =cut |
181 | =cut |
163 | |
182 | |
164 | $Coro::idle = new Coro sub { |
183 | $Coro::idle = \&Event::one_event; # inefficient |
165 | while () { |
|
|
166 | Coro::schedule; |
|
|
167 | Event::one_event; # inefficient |
|
|
168 | } |
|
|
169 | }; |
|
|
170 | |
|
|
171 | # provide hooks for Coro::Timer |
|
|
172 | |
|
|
173 | package Coro::Timer; |
|
|
174 | |
|
|
175 | unless ($override) { |
|
|
176 | $override = 1; |
|
|
177 | *_new_timer = sub { |
|
|
178 | Event->timer(at => $_[0], cb => $_[1]); |
|
|
179 | }; |
|
|
180 | } |
|
|
181 | |
184 | |
182 | 1; |
185 | 1; |
183 | |
186 | |
184 | =back |
187 | =back |
185 | |
188 | |