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66 | async { ... } [@args...] |
66 | async { ... } [@args...] |
67 | Create a new asynchronous coroutine and return it's coroutine object |
67 | Create a new asynchronous coroutine and return it's coroutine object |
68 | (usually unused). When the sub returns the new coroutine is |
68 | (usually unused). When the sub returns the new coroutine is |
69 | automatically terminated. |
69 | automatically terminated. |
70 | |
70 | |
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71 | See the "Coro::State::new" constructor for info about the coroutine |
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72 | environment. |
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73 | |
71 | Calling "exit" in a coroutine will do the same as calling exit |
74 | Calling "exit" in a coroutine will do the same as calling exit |
72 | outside the coroutine. Likewise, when the coroutine dies, the |
75 | outside the coroutine. Likewise, when the coroutine dies, the |
73 | program will exit, just as it would in the main program. |
76 | program will exit, just as it would in the main program. |
74 | |
77 | |
75 | # create a new coroutine that just prints its arguments |
78 | # create a new coroutine that just prints its arguments |
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87 | be issued in case of an exception instead of terminating the |
90 | be issued in case of an exception instead of terminating the |
88 | program, as "async" does. As the coroutine is being reused, stuff |
91 | program, as "async" does. As the coroutine is being reused, stuff |
89 | like "on_destroy" will not work in the expected way, unless you call |
92 | like "on_destroy" will not work in the expected way, unless you call |
90 | terminate or cancel, which somehow defeats the purpose of pooling. |
93 | terminate or cancel, which somehow defeats the purpose of pooling. |
91 | |
94 | |
92 | The priority will be reset to 0 after each job, otherwise the |
95 | The priority will be reset to 0 after each job, tracing will be |
93 | coroutine will be re-used "as-is". |
96 | disabled, the description will be reset and the default output |
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97 | filehandle gets restored, so you can change alkl these. Otherwise |
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98 | the coroutine will be re-used "as-is": most notably if you change |
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99 | other per-coroutine global stuff such as $/ you need to revert that |
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100 | change, which is most simply done by using local as in " local $/ ". |
94 | |
101 | |
95 | The pool size is limited to 8 idle coroutines (this can be adjusted |
102 | The pool size is limited to 8 idle coroutines (this can be adjusted |
96 | by changing $Coro::POOL_SIZE), and there can be as many non-idle |
103 | by changing $Coro::POOL_SIZE), and there can be as many non-idle |
97 | coros as required. |
104 | coros as required. |
98 | |
105 | |
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144 | |
151 | |
145 | terminate [arg...] |
152 | terminate [arg...] |
146 | Terminates the current coroutine with the given status values (see |
153 | Terminates the current coroutine with the given status values (see |
147 | cancel). |
154 | cancel). |
148 | |
155 | |
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156 | killall |
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157 | Kills/terminates/cancels all coroutines except the currently running |
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158 | one. This is useful after a fork, either in the child or the parent, |
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159 | as usually only one of them should inherit the running coroutines. |
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160 | |
149 | # dynamic methods |
161 | # dynamic methods |
150 | |
162 | |
151 | COROUTINE METHODS |
163 | COROUTINE METHODS |
152 | These are the methods you can call on coroutine objects. |
164 | These are the methods you can call on coroutine objects. |
153 | |
165 | |
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155 | Create a new coroutine and return it. When the sub returns the |
167 | Create a new coroutine and return it. When the sub returns the |
156 | coroutine automatically terminates as if "terminate" with the |
168 | coroutine automatically terminates as if "terminate" with the |
157 | returned values were called. To make the coroutine run you must |
169 | returned values were called. To make the coroutine run you must |
158 | first put it into the ready queue by calling the ready method. |
170 | first put it into the ready queue by calling the ready method. |
159 | |
171 | |
160 | See "async" for additional discussion. |
172 | See "async" and "Coro::State::new" for additional info about the |
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173 | coroutine environment. |
161 | |
174 | |
162 | $success = $coroutine->ready |
175 | $success = $coroutine->ready |
163 | Put the given coroutine into the ready queue (according to it's |
176 | Put the given coroutine into the ready queue (according to it's |
164 | priority) and return true. If the coroutine is already in the ready |
177 | priority) and return true. If the coroutine is already in the ready |
165 | queue, do nothing and return false. |
178 | queue, do nothing and return false. |
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172 | arguments as status (default: the empty list). Never returns if the |
185 | arguments as status (default: the empty list). Never returns if the |
173 | coroutine is the current coroutine. |
186 | coroutine is the current coroutine. |
174 | |
187 | |
175 | $coroutine->join |
188 | $coroutine->join |
176 | Wait until the coroutine terminates and return any values given to |
189 | Wait until the coroutine terminates and return any values given to |
177 | the "terminate" or "cancel" functions. "join" can be called multiple |
190 | the "terminate" or "cancel" functions. "join" can be called |
178 | times from multiple coroutine. |
191 | concurrently from multiple coroutines. |
179 | |
192 | |
180 | $coroutine->on_destroy (\&cb) |
193 | $coroutine->on_destroy (\&cb) |
181 | Registers a callback that is called when this coroutine gets |
194 | Registers a callback that is called when this coroutine gets |
182 | destroyed, but before it is joined. The callback gets passed the |
195 | destroyed, but before it is joined. The callback gets passed the |
183 | terminate arguments, if any. |
196 | terminate arguments, if any. |
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210 | |
223 | |
211 | $olddesc = $coroutine->desc ($newdesc) |
224 | $olddesc = $coroutine->desc ($newdesc) |
212 | Sets (or gets in case the argument is missing) the description for |
225 | Sets (or gets in case the argument is missing) the description for |
213 | this coroutine. This is just a free-form string you can associate |
226 | this coroutine. This is just a free-form string you can associate |
214 | with a coroutine. |
227 | with a coroutine. |
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228 | |
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229 | This method simply sets the "$coroutine->{desc}" member to the given |
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230 | string. You can modify this member directly if you wish. |
215 | |
231 | |
216 | GLOBAL FUNCTIONS |
232 | GLOBAL FUNCTIONS |
217 | Coro::nready |
233 | Coro::nready |
218 | Returns the number of coroutines that are currently in the ready |
234 | Returns the number of coroutines that are currently in the ready |
219 | state, i.e. that can be switched to. The value 0 means that the only |
235 | state, i.e. that can be switched to. The value 0 means that the only |
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268 | from the same thread (this requirement might be loosened in the future |
284 | from the same thread (this requirement might be loosened in the future |
269 | to allow per-thread schedulers, but Coro::State does not yet allow |
285 | to allow per-thread schedulers, but Coro::State does not yet allow |
270 | this). |
286 | this). |
271 | |
287 | |
272 | SEE ALSO |
288 | SEE ALSO |
273 | Support/Utility: Coro::Cont, Coro::Specific, Coro::State, Coro::Util. |
289 | Support/Utility: Coro::Specific, Coro::State, Coro::Util. |
274 | |
290 | |
275 | Locking/IPC: Coro::Signal, Coro::Channel, Coro::Semaphore, |
291 | Locking/IPC: Coro::Signal, Coro::Channel, Coro::Semaphore, |
276 | Coro::SemaphoreSet, Coro::RWLock. |
292 | Coro::SemaphoreSet, Coro::RWLock. |
277 | |
293 | |
278 | Event/IO: Coro::Timer, Coro::Event, Coro::Handle, Coro::Socket, |
294 | Event/IO: Coro::Timer, Coro::Event, Coro::Handle, Coro::Socket, |