| … | |
… | |
| 152 | |
152 | |
| 153 | # now $master_filehandle is connected to the |
153 | # now $master_filehandle is connected to the |
| 154 | # $slave_filehandle in the new process. |
154 | # $slave_filehandle in the new process. |
| 155 | }); |
155 | }); |
| 156 | |
156 | |
| 157 | # MyModule::worker might look like this |
157 | MyModule might look like this: |
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158 | |
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159 | package MyModule; |
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160 | |
| 158 | sub MyModule::worker { |
161 | sub worker { |
| 159 | my ($slave_filehandle) = @_; |
162 | my ($slave_filehandle) = @_; |
| 160 | |
163 | |
| 161 | # now $slave_filehandle is connected to the $master_filehandle |
164 | # now $slave_filehandle is connected to the $master_filehandle |
| 162 | # in the original prorcess. have fun! |
165 | # in the original prorcess. have fun! |
| 163 | } |
166 | } |
| … | |
… | |
| 182 | } |
185 | } |
| 183 | |
186 | |
| 184 | # now do other things - maybe use the filehandle provided by run |
187 | # now do other things - maybe use the filehandle provided by run |
| 185 | # to wait for the processes to die. or whatever. |
188 | # to wait for the processes to die. or whatever. |
| 186 | |
189 | |
| 187 | # My::Server::run might look like this |
190 | My::Server might look like this: |
| 188 | sub My::Server::run { |
191 | |
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192 | package My::Server; |
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193 | |
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194 | sub run { |
| 189 | my ($slave, $listener, $id) = @_; |
195 | my ($slave, $listener, $id) = @_; |
| 190 | |
196 | |
| 191 | close $slave; # we do not use the socket, so close it to save resources |
197 | close $slave; # we do not use the socket, so close it to save resources |
| 192 | |
198 | |
| 193 | # we could go ballistic and use e.g. AnyEvent here, or IO::AIO, |
199 | # we could go ballistic and use e.g. AnyEvent here, or IO::AIO, |
| … | |
… | |
| 309 | my ($fork_fh) = @_; |
315 | my ($fork_fh) = @_; |
| 310 | }); |
316 | }); |
| 311 | |
317 | |
| 312 | =back |
318 | =back |
| 313 | |
319 | |
| 314 | =head1 FUNCTIONS |
320 | =head1 THE C<AnyEvent::Fork> CLASS |
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321 | |
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322 | This module exports nothing, and only implements a single class - |
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323 | C<AnyEvent::Fork>. |
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324 | |
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325 | There are two class constructors that both create new processes - C<new> |
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326 | and C<new_exec>. The C<fork> method creates a new process by forking an |
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327 | existing one and could be considered a third constructor. |
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328 | |
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329 | Most of the remaining methods deal with preparing the new process, by |
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330 | loading code, evaluating code and sending data to the new process. They |
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331 | usually return the process object, so you can chain method calls. |
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332 | |
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333 | If a process object is destroyed before calling its C<run> method, then |
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334 | the process simply exits. After C<run> is called, all responsibility is |
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335 | passed to the specified function. |
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336 | |
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337 | As long as there is any outstanding work to be done, process objects |
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338 | resist being destroyed, so there is no reason to store them unless you |
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339 | need them later - configure and forget works just fine. |
| 315 | |
340 | |
| 316 | =over 4 |
341 | =over 4 |
| 317 | |
342 | |
| 318 | =cut |
343 | =cut |
| 319 | |
344 | |
| … | |
… | |
| 329 | use IO::FDPass; |
354 | use IO::FDPass; |
| 330 | |
355 | |
| 331 | our $VERSION = 0.5; |
356 | our $VERSION = 0.5; |
| 332 | |
357 | |
| 333 | our $PERL; # the path to the perl interpreter, deduces with various forms of magic |
358 | our $PERL; # the path to the perl interpreter, deduces with various forms of magic |
| 334 | |
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| 335 | =item my $pool = new AnyEvent::Fork key => value... |
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| 336 | |
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| 337 | Create a new process pool. The following named parameters are supported: |
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| 338 | |
359 | |
| 339 | =over 4 |
360 | =over 4 |
| 340 | |
361 | |
| 341 | =back |
362 | =back |
| 342 | |
363 | |
| … | |
… | |
| 438 | Create a new "empty" perl interpreter process and returns its process |
459 | Create a new "empty" perl interpreter process and returns its process |
| 439 | object for further manipulation. |
460 | object for further manipulation. |
| 440 | |
461 | |
| 441 | The new process is forked from a template process that is kept around |
462 | The new process is forked from a template process that is kept around |
| 442 | for this purpose. When it doesn't exist yet, it is created by a call to |
463 | for this purpose. When it doesn't exist yet, it is created by a call to |
| 443 | C<new_exec> and kept around for future calls. |
464 | C<new_exec> first and then stays around for future calls. |
| 444 | |
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| 445 | When the process object is destroyed, it will release the file handle |
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| 446 | that connects it with the new process. When the new process has not yet |
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| 447 | called C<run>, then the process will exit. Otherwise, what happens depends |
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| 448 | entirely on the code that is executed. |
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| 449 | |
465 | |
| 450 | =cut |
466 | =cut |
| 451 | |
467 | |
| 452 | sub new { |
468 | sub new { |
| 453 | my $class = shift; |
469 | my $class = shift; |
| … | |
… | |
| 550 | Normally, only processes created via C<< AnyEvent::Fork->new_exec >> and |
566 | Normally, only processes created via C<< AnyEvent::Fork->new_exec >> and |
| 551 | L<AnyEvent::Fork::Template> are direct children, and you are responsible |
567 | L<AnyEvent::Fork::Template> are direct children, and you are responsible |
| 552 | to clean up their zombies when they die. |
568 | to clean up their zombies when they die. |
| 553 | |
569 | |
| 554 | All other processes are not direct children, and will be cleaned up by |
570 | All other processes are not direct children, and will be cleaned up by |
| 555 | AnyEvent::Fork. |
571 | AnyEvent::Fork itself. |
| 556 | |
572 | |
| 557 | =cut |
573 | =cut |
| 558 | |
574 | |
| 559 | sub pid { |
575 | sub pid { |
| 560 | $_[0][0] |
576 | $_[0][0] |
