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20 | |
20 | |
21 | =head1 DESCRIPTION |
21 | =head1 DESCRIPTION |
22 | |
22 | |
23 | This module collection manages coroutines. Coroutines are similar |
23 | This module collection manages coroutines. Coroutines are similar |
24 | to threads but don't run in parallel at the same time even on SMP |
24 | to threads but don't run in parallel at the same time even on SMP |
25 | machines. The specific flavor of coroutine use din this module also |
25 | machines. The specific flavor of coroutine used in this module also |
26 | guarentees you that it will not switch between coroutines unless |
26 | guarantees you that it will not switch between coroutines unless |
27 | necessary, at easily-identified points in your program, so locking and |
27 | necessary, at easily-identified points in your program, so locking and |
28 | parallel access are rarely an issue, making coroutine programming much |
28 | parallel access are rarely an issue, making coroutine programming much |
29 | safer than threads programming. |
29 | safer than threads programming. |
30 | |
30 | |
31 | (Perl, however, does not natively support real threads but instead does a |
31 | (Perl, however, does not natively support real threads but instead does a |
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50 | |
50 | |
51 | our $idle; # idle handler |
51 | our $idle; # idle handler |
52 | our $main; # main coroutine |
52 | our $main; # main coroutine |
53 | our $current; # current coroutine |
53 | our $current; # current coroutine |
54 | |
54 | |
55 | our $VERSION = '3.3'; |
55 | our $VERSION = '4.03'; |
56 | |
56 | |
57 | our @EXPORT = qw(async cede schedule terminate current unblock_sub); |
57 | our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); |
58 | our %EXPORT_TAGS = ( |
58 | our %EXPORT_TAGS = ( |
59 | prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], |
59 | prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], |
60 | ); |
60 | ); |
61 | our @EXPORT_OK = (@{$EXPORT_TAGS{prio}}, qw(nready)); |
61 | our @EXPORT_OK = (@{$EXPORT_TAGS{prio}}, qw(nready)); |
62 | |
62 | |
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108 | |
108 | |
109 | The current coroutine (the last coroutine switched to). The initial value |
109 | The current coroutine (the last coroutine switched to). The initial value |
110 | is C<$main> (of course). |
110 | is C<$main> (of course). |
111 | |
111 | |
112 | This variable is B<strictly> I<read-only>. It is provided for performance |
112 | This variable is B<strictly> I<read-only>. It is provided for performance |
113 | reasons. If performance is not essentiel you are encouraged to use the |
113 | reasons. If performance is not essential you are encouraged to use the |
114 | C<Coro::current> function instead. |
114 | C<Coro::current> function instead. |
115 | |
115 | |
116 | =cut |
116 | =cut |
117 | |
117 | |
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118 | $main->{desc} = "[main::]"; |
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119 | |
118 | # maybe some other module used Coro::Specific before... |
120 | # maybe some other module used Coro::Specific before... |
119 | $main->{specific} = $current->{specific} |
121 | $main->{_specific} = $current->{_specific} |
120 | if $current; |
122 | if $current; |
121 | |
123 | |
122 | _set_current $main; |
124 | _set_current $main; |
123 | |
125 | |
124 | sub current() { $current } |
126 | sub current() { $current } |
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141 | $idle = sub { |
143 | $idle = sub { |
142 | require Carp; |
144 | require Carp; |
143 | Carp::croak ("FATAL: deadlock detected"); |
145 | Carp::croak ("FATAL: deadlock detected"); |
144 | }; |
146 | }; |
145 | |
147 | |
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148 | sub _cancel { |
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149 | my ($self) = @_; |
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150 | |
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151 | # free coroutine data and mark as destructed |
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152 | $self->_destroy |
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153 | or return; |
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154 | |
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155 | # call all destruction callbacks |
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156 | $_->(@{$self->{_status}}) |
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157 | for @{(delete $self->{_on_destroy}) || []}; |
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158 | } |
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159 | |
146 | # this coroutine is necessary because a coroutine |
160 | # this coroutine is necessary because a coroutine |
147 | # cannot destroy itself. |
161 | # cannot destroy itself. |
148 | my @destroy; |
162 | my @destroy; |
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163 | my $manager; |
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164 | |
149 | my $manager; $manager = new Coro sub { |
165 | $manager = new Coro sub { |
150 | while () { |
166 | while () { |
151 | # by overwriting the state object with the manager we destroy it |
167 | (shift @destroy)->_cancel |
152 | # while still being able to schedule this coroutine (in case it has |
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153 | # been readied multiple times. this is harmless since the manager |
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154 | # can be called as many times as neccessary and will always |
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155 | # remove itself from the runqueue |
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156 | while (@destroy) { |
168 | while @destroy; |
157 | my $coro = pop @destroy; |
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158 | |
169 | |
159 | $coro->{status} ||= []; |
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160 | |
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161 | $_->ready for @{(delete $coro->{join} ) || []}; |
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162 | $_->(@{$coro->{status}}) for @{(delete $coro->{destroy_cb}) || []}; |
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163 | |
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164 | # the next line destroys the coro state, but keeps the |
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165 | # coroutine itself intact (we basically make it a zombie |
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166 | # coroutine that always runs the manager thread, so it's possible |
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167 | # to transfer() to this coroutine). |
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168 | $coro->_clone_state_from ($manager); |
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169 | } |
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170 | &schedule; |
170 | &schedule; |
171 | } |
171 | } |
172 | }; |
172 | }; |
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173 | $manager->desc ("[coro manager]"); |
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174 | $manager->prio (PRIO_MAX); |
173 | |
175 | |
174 | # static methods. not really. |
176 | # static methods. not really. |
175 | |
177 | |
176 | =back |
178 | =back |
177 | |
179 | |
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185 | |
187 | |
186 | Create a new asynchronous coroutine and return it's coroutine object |
188 | Create a new asynchronous coroutine and return it's coroutine object |
187 | (usually unused). When the sub returns the new coroutine is automatically |
189 | (usually unused). When the sub returns the new coroutine is automatically |
188 | terminated. |
190 | terminated. |
189 | |
191 | |
190 | Calling C<exit> in a coroutine will not work correctly, so do not do that. |
192 | See the C<Coro::State::new> constructor for info about the coroutine |
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193 | environment. |
191 | |
194 | |
192 | When the coroutine dies, the program will exit, just as in the main |
195 | Calling C<exit> in a coroutine will do the same as calling exit outside |
193 | program. |
196 | the coroutine. Likewise, when the coroutine dies, the program will exit, |
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197 | just as it would in the main program. |
194 | |
198 | |
195 | # create a new coroutine that just prints its arguments |
199 | # create a new coroutine that just prints its arguments |
196 | async { |
200 | async { |
197 | print "@_\n"; |
201 | print "@_\n"; |
198 | } 1,2,3,4; |
202 | } 1,2,3,4; |
199 | |
203 | |
200 | =cut |
204 | =cut |
201 | |
205 | |
202 | sub async(&@) { |
206 | sub async(&@) { |
203 | my $pid = new Coro @_; |
207 | my $coro = new Coro @_; |
204 | $pid->ready; |
208 | $coro->ready; |
205 | $pid |
209 | $coro |
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210 | } |
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211 | |
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212 | =item async_pool { ... } [@args...] |
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213 | |
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214 | Similar to C<async>, but uses a coroutine pool, so you should not call |
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215 | terminate or join (although you are allowed to), and you get a coroutine |
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216 | that might have executed other code already (which can be good or bad :). |
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217 | |
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218 | Also, the block is executed in an C<eval> context and a warning will be |
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219 | issued in case of an exception instead of terminating the program, as |
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220 | C<async> does. As the coroutine is being reused, stuff like C<on_destroy> |
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221 | will not work in the expected way, unless you call terminate or cancel, |
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222 | which somehow defeats the purpose of pooling. |
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223 | |
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224 | The priority will be reset to C<0> after each job, tracing will be |
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225 | disabled, the description will be reset and the default output filehandle |
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226 | gets restored, so you can change alkl these. Otherwise the coroutine will |
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227 | be re-used "as-is": most notably if you change other per-coroutine global |
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228 | stuff such as C<$/> you need to revert that change, which is most simply |
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229 | done by using local as in C< local $/ >. |
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230 | |
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231 | The pool size is limited to 8 idle coroutines (this can be adjusted by |
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232 | changing $Coro::POOL_SIZE), and there can be as many non-idle coros as |
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233 | required. |
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234 | |
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235 | If you are concerned about pooled coroutines growing a lot because a |
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236 | single C<async_pool> used a lot of stackspace you can e.g. C<async_pool |
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237 | { terminate }> once per second or so to slowly replenish the pool. In |
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238 | addition to that, when the stacks used by a handler grows larger than 16kb |
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239 | (adjustable with $Coro::POOL_RSS) it will also exit. |
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240 | |
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241 | =cut |
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242 | |
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243 | our $POOL_SIZE = 8; |
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244 | our $POOL_RSS = 16 * 1024; |
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245 | our @async_pool; |
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246 | |
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247 | sub pool_handler { |
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248 | my $cb; |
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249 | |
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250 | while () { |
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251 | eval { |
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252 | while () { |
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253 | _pool_1 $cb; |
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254 | &$cb; |
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255 | _pool_2 $cb; |
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256 | &schedule; |
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257 | } |
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258 | }; |
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259 | |
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260 | last if $@ eq "\3async_pool terminate\2\n"; |
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261 | warn $@ if $@; |
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262 | } |
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263 | } |
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264 | |
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265 | sub async_pool(&@) { |
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266 | # this is also inlined into the unlock_scheduler |
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267 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
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268 | |
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269 | $coro->{_invoke} = [@_]; |
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270 | $coro->ready; |
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271 | |
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272 | $coro |
206 | } |
273 | } |
207 | |
274 | |
208 | =item schedule |
275 | =item schedule |
209 | |
276 | |
210 | Calls the scheduler. Please note that the current coroutine will not be put |
277 | Calls the scheduler. Please note that the current coroutine will not be put |
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223 | # wake up sleeping coroutine |
290 | # wake up sleeping coroutine |
224 | $current->ready; |
291 | $current->ready; |
225 | undef $current; |
292 | undef $current; |
226 | }; |
293 | }; |
227 | |
294 | |
228 | # call schedule until event occured. |
295 | # call schedule until event occurred. |
229 | # in case we are woken up for other reasons |
296 | # in case we are woken up for other reasons |
230 | # (current still defined), loop. |
297 | # (current still defined), loop. |
231 | Coro::schedule while $current; |
298 | Coro::schedule while $current; |
232 | } |
299 | } |
233 | |
300 | |
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235 | |
302 | |
236 | "Cede" to other coroutines. This function puts the current coroutine into the |
303 | "Cede" to other coroutines. This function puts the current coroutine into the |
237 | ready queue and calls C<schedule>, which has the effect of giving up the |
304 | ready queue and calls C<schedule>, which has the effect of giving up the |
238 | current "timeslice" to other coroutines of the same or higher priority. |
305 | current "timeslice" to other coroutines of the same or higher priority. |
239 | |
306 | |
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307 | Returns true if at least one coroutine switch has happened. |
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308 | |
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309 | =item Coro::cede_notself |
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310 | |
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311 | Works like cede, but is not exported by default and will cede to any |
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312 | coroutine, regardless of priority, once. |
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313 | |
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314 | Returns true if at least one coroutine switch has happened. |
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315 | |
240 | =item terminate [arg...] |
316 | =item terminate [arg...] |
241 | |
317 | |
242 | Terminates the current coroutine with the given status values (see L<cancel>). |
318 | Terminates the current coroutine with the given status values (see L<cancel>). |
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319 | |
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320 | =item killall |
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321 | |
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322 | Kills/terminates/cancels all coroutines except the currently running |
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323 | one. This is useful after a fork, either in the child or the parent, as |
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324 | usually only one of them should inherit the running coroutines. |
243 | |
325 | |
244 | =cut |
326 | =cut |
245 | |
327 | |
246 | sub terminate { |
328 | sub terminate { |
247 | $current->cancel (@_); |
329 | $current->cancel (@_); |
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330 | } |
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331 | |
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332 | sub killall { |
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333 | for (Coro::State::list) { |
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334 | $_->cancel |
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335 | if $_ != $current && UNIVERSAL::isa $_, "Coro"; |
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336 | } |
248 | } |
337 | } |
249 | |
338 | |
250 | =back |
339 | =back |
251 | |
340 | |
252 | # dynamic methods |
341 | # dynamic methods |
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262 | Create a new coroutine and return it. When the sub returns the coroutine |
351 | Create a new coroutine and return it. When the sub returns the coroutine |
263 | automatically terminates as if C<terminate> with the returned values were |
352 | automatically terminates as if C<terminate> with the returned values were |
264 | called. To make the coroutine run you must first put it into the ready queue |
353 | called. To make the coroutine run you must first put it into the ready queue |
265 | by calling the ready method. |
354 | by calling the ready method. |
266 | |
355 | |
267 | Calling C<exit> in a coroutine will not work correctly, so do not do that. |
356 | See C<async> and C<Coro::State::new> for additional info about the |
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357 | coroutine environment. |
268 | |
358 | |
269 | =cut |
359 | =cut |
270 | |
360 | |
271 | sub _run_coro { |
361 | sub _run_coro { |
272 | terminate &{+shift}; |
362 | terminate &{+shift}; |
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289 | Return wether the coroutine is currently the ready queue or not, |
379 | Return wether the coroutine is currently the ready queue or not, |
290 | |
380 | |
291 | =item $coroutine->cancel (arg...) |
381 | =item $coroutine->cancel (arg...) |
292 | |
382 | |
293 | Terminates the given coroutine and makes it return the given arguments as |
383 | Terminates the given coroutine and makes it return the given arguments as |
294 | status (default: the empty list). |
384 | status (default: the empty list). Never returns if the coroutine is the |
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385 | current coroutine. |
295 | |
386 | |
296 | =cut |
387 | =cut |
297 | |
388 | |
298 | sub cancel { |
389 | sub cancel { |
299 | my $self = shift; |
390 | my $self = shift; |
300 | $self->{status} = [@_]; |
391 | $self->{_status} = [@_]; |
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392 | |
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393 | if ($current == $self) { |
301 | push @destroy, $self; |
394 | push @destroy, $self; |
302 | $manager->ready; |
395 | $manager->ready; |
303 | &schedule if $current == $self; |
396 | &schedule while 1; |
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397 | } else { |
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398 | $self->_cancel; |
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399 | } |
304 | } |
400 | } |
305 | |
401 | |
306 | =item $coroutine->join |
402 | =item $coroutine->join |
307 | |
403 | |
308 | Wait until the coroutine terminates and return any values given to the |
404 | Wait until the coroutine terminates and return any values given to the |
309 | C<terminate> or C<cancel> functions. C<join> can be called multiple times |
405 | C<terminate> or C<cancel> functions. C<join> can be called concurrently |
310 | from multiple coroutine. |
406 | from multiple coroutines. |
311 | |
407 | |
312 | =cut |
408 | =cut |
313 | |
409 | |
314 | sub join { |
410 | sub join { |
315 | my $self = shift; |
411 | my $self = shift; |
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412 | |
316 | unless ($self->{status}) { |
413 | unless ($self->{_status}) { |
317 | push @{$self->{join}}, $current; |
414 | my $current = $current; |
318 | &schedule; |
415 | |
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416 | push @{$self->{_on_destroy}}, sub { |
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417 | $current->ready; |
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418 | undef $current; |
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419 | }; |
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420 | |
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421 | &schedule while $current; |
319 | } |
422 | } |
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423 | |
320 | wantarray ? @{$self->{status}} : $self->{status}[0]; |
424 | wantarray ? @{$self->{_status}} : $self->{_status}[0]; |
321 | } |
425 | } |
322 | |
426 | |
323 | =item $coroutine->on_destroy (\&cb) |
427 | =item $coroutine->on_destroy (\&cb) |
324 | |
428 | |
325 | Registers a callback that is called when this coroutine gets destroyed, |
429 | Registers a callback that is called when this coroutine gets destroyed, |
… | |
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329 | =cut |
433 | =cut |
330 | |
434 | |
331 | sub on_destroy { |
435 | sub on_destroy { |
332 | my ($self, $cb) = @_; |
436 | my ($self, $cb) = @_; |
333 | |
437 | |
334 | push @{ $self->{destroy_cb} }, $cb; |
438 | push @{ $self->{_on_destroy} }, $cb; |
335 | } |
439 | } |
336 | |
440 | |
337 | =item $oldprio = $coroutine->prio ($newprio) |
441 | =item $oldprio = $coroutine->prio ($newprio) |
338 | |
442 | |
339 | Sets (or gets, if the argument is missing) the priority of the |
443 | Sets (or gets, if the argument is missing) the priority of the |
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364 | =item $olddesc = $coroutine->desc ($newdesc) |
468 | =item $olddesc = $coroutine->desc ($newdesc) |
365 | |
469 | |
366 | Sets (or gets in case the argument is missing) the description for this |
470 | Sets (or gets in case the argument is missing) the description for this |
367 | coroutine. This is just a free-form string you can associate with a coroutine. |
471 | coroutine. This is just a free-form string you can associate with a coroutine. |
368 | |
472 | |
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473 | This method simply sets the C<< $coroutine->{desc} >> member to the given string. You |
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474 | can modify this member directly if you wish. |
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475 | |
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476 | =item $coroutine->throw ([$scalar]) |
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477 | |
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478 | If C<$throw> is specified and defined, it will be thrown as an exception |
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479 | inside the coroutine at the next convinient point in time (usually after |
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480 | it gains control at the next schedule/transfer/cede). Otherwise clears the |
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481 | exception object. |
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482 | |
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483 | The exception object will be thrown "as is" with the specified scalar in |
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484 | C<$@>, i.e. if it is a string, no line number or newline will be appended |
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485 | (unlike with C<die>). |
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486 | |
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487 | This can be used as a softer means than C<cancel> to ask a coroutine to |
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488 | end itself, although there is no guarentee that the exception will lead to |
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489 | termination, and if the exception isn't caught it might well end the whole |
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490 | program. |
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491 | |
369 | =cut |
492 | =cut |
370 | |
493 | |
371 | sub desc { |
494 | sub desc { |
372 | my $old = $_[0]{desc}; |
495 | my $old = $_[0]{desc}; |
373 | $_[0]{desc} = $_[1] if @_ > 1; |
496 | $_[0]{desc} = $_[1] if @_ > 1; |
… | |
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381 | =over 4 |
504 | =over 4 |
382 | |
505 | |
383 | =item Coro::nready |
506 | =item Coro::nready |
384 | |
507 | |
385 | Returns the number of coroutines that are currently in the ready state, |
508 | Returns the number of coroutines that are currently in the ready state, |
386 | i.e. that can be swicthed to. The value C<0> means that the only runnable |
509 | i.e. that can be switched to. The value C<0> means that the only runnable |
387 | coroutine is the currently running one, so C<cede> would have no effect, |
510 | coroutine is the currently running one, so C<cede> would have no effect, |
388 | and C<schedule> would cause a deadlock unless there is an idle handler |
511 | and C<schedule> would cause a deadlock unless there is an idle handler |
389 | that wakes up some coroutines. |
512 | that wakes up some coroutines. |
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513 | |
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514 | =item my $guard = Coro::guard { ... } |
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515 | |
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516 | This creates and returns a guard object. Nothing happens until the object |
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517 | gets destroyed, in which case the codeblock given as argument will be |
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518 | executed. This is useful to free locks or other resources in case of a |
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519 | runtime error or when the coroutine gets canceled, as in both cases the |
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520 | guard block will be executed. The guard object supports only one method, |
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521 | C<< ->cancel >>, which will keep the codeblock from being executed. |
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522 | |
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523 | Example: set some flag and clear it again when the coroutine gets canceled |
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524 | or the function returns: |
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525 | |
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526 | sub do_something { |
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527 | my $guard = Coro::guard { $busy = 0 }; |
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528 | $busy = 1; |
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529 | |
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530 | # do something that requires $busy to be true |
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531 | } |
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532 | |
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533 | =cut |
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534 | |
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535 | sub guard(&) { |
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536 | bless \(my $cb = $_[0]), "Coro::guard" |
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537 | } |
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538 | |
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539 | sub Coro::guard::cancel { |
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540 | ${$_[0]} = sub { }; |
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541 | } |
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542 | |
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543 | sub Coro::guard::DESTROY { |
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544 | ${$_[0]}->(); |
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545 | } |
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|
546 | |
390 | |
547 | |
391 | =item unblock_sub { ... } |
548 | =item unblock_sub { ... } |
392 | |
549 | |
393 | This utility function takes a BLOCK or code reference and "unblocks" it, |
550 | This utility function takes a BLOCK or code reference and "unblocks" it, |
394 | returning the new coderef. This means that the new coderef will return |
551 | returning the new coderef. This means that the new coderef will return |
395 | immediately without blocking, returning nothing, while the original code |
552 | immediately without blocking, returning nothing, while the original code |
396 | ref will be called (with parameters) from within its own coroutine. |
553 | ref will be called (with parameters) from within its own coroutine. |
397 | |
554 | |
398 | The reason this fucntion exists is that many event libraries (such as the |
555 | The reason this function exists is that many event libraries (such as the |
399 | venerable L<Event|Event> module) are not coroutine-safe (a weaker form |
556 | venerable L<Event|Event> module) are not coroutine-safe (a weaker form |
400 | of thread-safety). This means you must not block within event callbacks, |
557 | of thread-safety). This means you must not block within event callbacks, |
401 | otherwise you might suffer from crashes or worse. |
558 | otherwise you might suffer from crashes or worse. |
402 | |
559 | |
403 | This function allows your callbacks to block by executing them in another |
560 | This function allows your callbacks to block by executing them in another |
… | |
… | |
408 | In short: simply use C<unblock_sub { ... }> instead of C<sub { ... }> when |
565 | In short: simply use C<unblock_sub { ... }> instead of C<sub { ... }> when |
409 | creating event callbacks that want to block. |
566 | creating event callbacks that want to block. |
410 | |
567 | |
411 | =cut |
568 | =cut |
412 | |
569 | |
413 | our @unblock_pool; |
|
|
414 | our @unblock_queue; |
570 | our @unblock_queue; |
415 | our $UNBLOCK_POOL_SIZE = 2; |
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|
416 | |
571 | |
417 | sub unblock_handler_ { |
572 | # we create a special coro because we want to cede, |
418 | while () { |
573 | # to reduce pressure on the coro pool (because most callbacks |
419 | my ($cb, @arg) = @{ delete $Coro::current->{arg} }; |
574 | # return immediately and can be reused) and because we cannot cede |
420 | $cb->(@arg); |
575 | # inside an event callback. |
421 | |
|
|
422 | last if @unblock_pool >= $UNBLOCK_POOL_SIZE; |
|
|
423 | push @unblock_pool, $Coro::current; |
|
|
424 | schedule; |
|
|
425 | } |
|
|
426 | } |
|
|
427 | |
|
|
428 | our $unblock_scheduler = async { |
576 | our $unblock_scheduler = new Coro sub { |
429 | while () { |
577 | while () { |
430 | while (my $cb = pop @unblock_queue) { |
578 | while (my $cb = pop @unblock_queue) { |
431 | my $handler = (pop @unblock_pool or new Coro \&unblock_handler_); |
579 | # this is an inlined copy of async_pool |
432 | $handler->{arg} = $cb; |
580 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
|
|
581 | |
|
|
582 | $coro->{_invoke} = $cb; |
433 | $handler->ready; |
583 | $coro->ready; |
434 | cede; |
584 | cede; # for short-lived callbacks, this reduces pressure on the coro pool |
435 | } |
585 | } |
436 | |
586 | schedule; # sleep well |
437 | schedule; |
|
|
438 | } |
587 | } |
439 | }; |
588 | }; |
|
|
589 | $unblock_scheduler->desc ("[unblock_sub scheduler]"); |
440 | |
590 | |
441 | sub unblock_sub(&) { |
591 | sub unblock_sub(&) { |
442 | my $cb = shift; |
592 | my $cb = shift; |
443 | |
593 | |
444 | sub { |
594 | sub { |
445 | push @unblock_queue, [$cb, @_]; |
595 | unshift @unblock_queue, [$cb, @_]; |
446 | $unblock_scheduler->ready; |
596 | $unblock_scheduler->ready; |
447 | } |
597 | } |
448 | } |
598 | } |
449 | |
599 | |
450 | =back |
600 | =back |
… | |
… | |
457 | |
607 | |
458 | - you must make very sure that no coro is still active on global |
608 | - you must make very sure that no coro is still active on global |
459 | destruction. very bad things might happen otherwise (usually segfaults). |
609 | destruction. very bad things might happen otherwise (usually segfaults). |
460 | |
610 | |
461 | - this module is not thread-safe. You should only ever use this module |
611 | - this module is not thread-safe. You should only ever use this module |
462 | from the same thread (this requirement might be losened in the future |
612 | from the same thread (this requirement might be loosened in the future |
463 | to allow per-thread schedulers, but Coro::State does not yet allow |
613 | to allow per-thread schedulers, but Coro::State does not yet allow |
464 | this). |
614 | this). |
465 | |
615 | |
466 | =head1 SEE ALSO |
616 | =head1 SEE ALSO |
467 | |
617 | |
468 | Support/Utility: L<Coro::Cont>, L<Coro::Specific>, L<Coro::State>, L<Coro::Util>. |
618 | Support/Utility: L<Coro::Specific>, L<Coro::State>, L<Coro::Util>. |
469 | |
619 | |
470 | Locking/IPC: L<Coro::Signal>, L<Coro::Channel>, L<Coro::Semaphore>, L<Coro::SemaphoreSet>, L<Coro::RWLock>. |
620 | Locking/IPC: L<Coro::Signal>, L<Coro::Channel>, L<Coro::Semaphore>, L<Coro::SemaphoreSet>, L<Coro::RWLock>. |
471 | |
621 | |
472 | Event/IO: L<Coro::Timer>, L<Coro::Event>, L<Coro::Handle>, L<Coro::Socket>, L<Coro::Select>. |
622 | Event/IO: L<Coro::Timer>, L<Coro::Event>, L<Coro::Handle>, L<Coro::Socket>, L<Coro::Select>. |
473 | |
623 | |