├── .gitignore ├── LICENSE ├── README.md ├── bin └── download_and_unpack ├── composer.json ├── examples ├── example_file_downloading ├── example_file_downloading_easy ├── example_file_downloading_pool ├── example_file_downloading_pool_easy ├── example_file_downloading_smaller ├── example_files_download_extract ├── example_files_download_extract_parallel ├── test ├── test_highload ├── test_pool ├── test_pool_highload ├── test_pool_object ├── test_pool_overhead ├── test_pool_reuse ├── test_pool_wait └── test_reuse ├── src ├── BackgroundWork.php ├── DownloadWorker.php ├── ExtractWorker.php ├── ForkingThread.php ├── Worker.php └── WorkersPool.php └── tests ├── CpuEatingWorkerTest.php └── WorkerTest.php /.gitignore: -------------------------------------------------------------------------------- 1 | .idea 2 | composer.lock 3 | vendor 4 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Threadable 2 | 3 | Easy-to-use threading library providing all basic features to perform work in background mode. 4 | 5 | All you need to have installed: 6 | - _pcntl_ 7 | - _posix_ 8 | - _sockets_ 9 | 10 | This library can also work in simulation mode, where no actual forking performs. All work is done in one main thread. 11 | This mode enables if **pnctl** extension is not available or when you specify it in `Worker` constructor. 12 | 13 | [![Latest Stable Version](https://poser.pugx.org/wapmorgan/threadable/v/stable)](https://packagist.org/packages/wapmorgan/threadable) 14 | [![Latest Unstable Version](https://poser.pugx.org/wapmorgan/threadable/v/unstable)](https://packagist.org/packages/wapmorgan/threadable) 15 | [![License](https://poser.pugx.org/wapmorgan/threadable/license)](https://packagist.org/packages/wapmorgan/threadable) 16 | 17 | 1. Structure 18 | - What is a `Worker`? 19 | * How to create your Worker 20 | - What is a `WorkersPool`? 21 | 2. Simple usage 22 | 3. How it works 23 | - One worker 24 | - Few workers with `WorkersPool` 25 | 4. API 26 | - `Worker` API 27 | - `WorkersPool` API 28 | 5. Predefined workers 29 | - `DownloadWorker` 30 | 6. Use cases 31 | 32 | # Structure 33 | 34 | ## What is a Worker? 35 | **Worker** - is a basic class for any worker. It is composed of two substances (physically, stored in one class, but providing different functionalities): 36 | 37 | 1. A `Worker` - a separate thread, doing all background work. 38 | 2. A `Worker` manager - a manipulator for the worker thread. 39 | 40 | ### How to create your Worker 41 | 42 | The all you need it to extend `wapmorgan\Threadable\Worker` class and reimplement `onPayload($data)` public method. 43 | 44 | For example: 45 | ```php 46 | use wapmorgan\Threadable\Worker; 47 | class SleepingWorker extends Worker 48 | { 49 | public function onPayload($data) 50 | { 51 | echo 'I have started at '.date('r').PHP_EOL; 52 | sleep(3); 53 | echo 'I have ended at '.date('r').PHP_EOL; 54 | 55 | return true; 56 | } 57 | } 58 | ``` 59 | 60 | ## What is a WorkersPool? 61 | **WorkersPool** (_wapmorgan\Threadable\WorkersPool_) - is a container for `Worker`'s, intended for handling similar tasks. 62 | It takes care of all maintenance, payload dispatching and life-cycle of workers. Allows you change the size of the pool dynamically and other useful stuff. 63 | 64 | # Simple usage 65 | For example, you want to just background downloading work. Let's use `wapmorgan\Threadable\BackgroundWork` class to background it and show progress for user (or store in DB/...). 66 | 67 | Everything you need to do: 68 | 1. Prepare payloads for `DownloadWorker` 69 | 2. Launch `BackgroundWork::doInBackground()` or `BackgroundWork::doInBackgroundParallel()` for one thread or few threads respectively. 70 | 71 | ## Stage 1. Preparing payloads 72 | 73 | `DownloadWorker` needs an array with `source` and `target` elements. Prepare it: 74 | 75 | ```php 76 | use wapmorgan\Threadable\BackgroundWork; 77 | use wapmorgan\Threadable\DownloadWorker; 78 | use wapmorgan\Threadable\Worker; 79 | 80 | $file_sources = ['https://yandex.ru/images/today?size=1920x1080', 'http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip']; 81 | $files = []; 82 | foreach ($file_sources as $file_to_download) { 83 | $files[] = [ 84 | 'source' => $file_to_download, 85 | 'size' => DownloadWorker::getRemoteFileSize($file_to_download), 86 | 'target' => tempnam(sys_get_temp_dir(), 'thrd_test'), 87 | ]; 88 | } 89 | ``` 90 | 91 | ## Stage 2. Launching in background 92 | 93 | ### One-thread worker 94 | Run it in one thread with `doInBackground` function. Signature is following: 95 | 96 | `doInBackground(Worker $worker, 97 | array $payloads, 98 | callable $payloadHandlingCallback = null, 99 | callable $onPayloadFinishCallback = null, 100 | $sleepMicroTime = 1000)` 101 | 102 | - `$worker` - an instance of worker. 103 | - `$payloads` - an array of all payloads. 104 | - `$payloadHandlingCallback` - a callback that will be called every `$sleepMicrotime` microseconds with information about currently running payload. 105 | Signature for callback: `(Worker $worker, int $payloadI, $payloadData)` 106 | - `$onPayloadFinishCallback` - a callback that will be called when worker ends with one payload. 107 | Signature for callback: `(Worker $worker, int $payloadI, $payloadData, $payloadResult)` 108 | 109 | So, collect all information to run it: 110 | 111 | ```php 112 | $result = BackgroundWork::doInBackground(new DownloadWorker(), $files, 113 | function (Worker $worker, $payloadI, $payloadData) { 114 | clearstatcache(true, $payloadData['target']); 115 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' downloading ' . round(filesize($payloadData['target']) * 100 / $payloadData['size'], 2) . '%'; 116 | }, 117 | function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 118 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' successfully downloaded' . PHP_EOL; 119 | return true; 120 | } 121 | ); 122 | if ($result) 123 | echo 'All files downloaded successfully'.PHP_EOL; 124 | ``` 125 | 126 | Example is in `bin/example_file_downloading_easy` file. 127 | 128 | ### Few-threads worker 129 | 130 | To run it in few threads use `doInBackgroundParallel`. It has almost the same signature as one-thread function: 131 | 132 | `doInBackgroundParallel(Worker $worker, 133 | array $payloads, 134 | callable $payloadHandlingCallback = null, 135 | callable $onPayloadFinishCallback = null, 136 | $sleepMicroTime = 1000, 137 | $poolSize = self::BY_CPU_NUMBER)` 138 | 139 | By adjusting `$poolSize` you can select number of workers that should be used. 140 | 141 | Example is in `bin/example_file_downloading_pool_easy` file. 142 | 143 | # How it works 144 | 145 | ## One worker 146 | 147 | If you just need to parallel some work and do it in another thread, you can utilize just `Worker` class without any other dependencies. 148 | 149 | To use it correctly you need to understand the life-cycle of worker: 150 | 151 | 1. Worker starts in another thread. To do this call `start()`. 152 | 2. Worker accepts new payload and starts working on it. To do this call `sendPayload(array $data)`. Really, worker manager sends payload via local socket. Worker thread starts working on it and returns result of work on finish via the same socket. 153 | 3. Worker manager checks if worker thread has done and read result of work. To do this call `checkForFinish()`. 154 | 4. Worker stops or being killed by `stop()` or `kill()` methods respectively. 155 | 5. Worker manager checks if worker thread has finished and marks itself terminated. To do this call `checkForTermination()`. 156 | 157 | Background work happens in **2 steps**, where worker thread runs `onPayload($data)` method of class with actual payload. 158 | 159 | To summarize, this is an example of downloading file in another thread with real-time displaying of progress: 160 | 161 | **Settings and structures** 162 | ```php 163 | // Implement class-downloader 164 | class DownloadWorker extends Worker 165 | { 166 | public function onPayload($data) 167 | { 168 | echo 'Started '.$data[0].' into '.$data[2].PHP_EOL; 169 | copy($data[0], $data[2]); 170 | } 171 | } 172 | 173 | // supplementary function, just to avoid hand-writing of file sizes 174 | function remote_filesize($path) 175 | { 176 | $fp = fopen($path, 'r'); 177 | $inf = stream_get_meta_data($fp); 178 | fclose($fp); 179 | foreach($inf["wrapper_data"] as $v) { 180 | if (stristr($v,"content-length")) { 181 | $v = explode(":",$v); 182 | return (int)trim($v[1]); 183 | } 184 | } 185 | } 186 | 187 | // our function to print actual status of downloads 188 | function show_status(&$files) 189 | { 190 | foreach ($files as $i => $file) { 191 | if (file_exists($file[2])) { 192 | clearstatcache(true, $file[2]); 193 | $downloaded_size = filesize($file[2]); 194 | if ($downloaded_size == $file[1]) { 195 | echo $file[0].' downloaded'.PHP_EOL; 196 | unset($files[$i]); 197 | unlink($file[2]); 198 | } else if ($downloaded_size === 0) { 199 | // echo $file[0].' in queue'.PHP_EOL; 200 | } else { 201 | echo $file[0].' downloading '.round($downloaded_size * 100 / $file[1], 2).'%'.PHP_EOL; 202 | } 203 | } 204 | } 205 | } 206 | 207 | // list of files to be downloaded 208 | $file_sources = ['https://yandex.ru/images/today?size=1920x1080', 'http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip']; 209 | // process of remote file size detection and creation temp local file for this downloading 210 | $files = []; 211 | foreach ($file_sources as $file_to_download) { 212 | $file_size = remote_filesize($file_to_download); 213 | $output = tempnam(sys_get_temp_dir(), 'thrd_test'); 214 | $files[] = [$file_to_download, $file_size, $output]; 215 | } 216 | ``` 217 | 218 | **Real work** 219 | ```php 220 | // construct and start new worker 221 | $worker = new DownloadWorker(); 222 | // or if you want to simulate forking 223 | $worker = new DownloadWorker(true); 224 | 225 | // add files to work queue 226 | foreach ($files as $file) { 227 | echo 'Enqueuing '.$file[0].' with size '.$file[1].PHP_EOL; 228 | $worker->sendPayload([$file]); 229 | } 230 | 231 | // main worker thread loop 232 | while ($worker->state !== Worker::TERMINATED) { 233 | // Worker::RUNNING state indicates that worker thread is still working over some payload 234 | if ($worker->state == Worker::RUNNING) { 235 | 236 | // prints status of all files 237 | show_status($files); 238 | // call check for finishing all tasks 239 | $worker->checkForFinish(); 240 | usleep(500000); 241 | } 242 | // Worker::IDLE state indicates that worker thread does not have any work right now 243 | else if ($worker->state == Worker::IDLE) { 244 | echo 'Ended. Stopping worker...'.PHP_EOL; 245 | // we don't need worker anymore, just stop it 246 | $worker->stop(); 247 | usleep(500000); 248 | } 249 | // Worker::TERMINATING state indicates that worker thread is going to be stopped and can't be used to process data 250 | else if ($worker->state == Worker::TERMINATING) { 251 | echo 'Wait for terminating ...'.PHP_EOL; 252 | // just to set Worker::TERMINATED state 253 | $worker->checkForTermination(); 254 | usleep(500000); 255 | } 256 | } 257 | ``` 258 | _Result:_ 259 | ```sh 260 | Enqueuing https://yandex.ru/images/today?size=1920x1080 with size 343103 261 | Enqueuing http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip with size 52693477 262 | Started https://yandex.ru/images/today?size=1920x1080 into /tmp/thrd_test0Y3i3k 263 | Started http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip into /tmp/thrd_testrwwYiE 264 | https://yandex.ru/images/today?size=1920x1080 downloaded 265 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 28.89% 266 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 66.06% 267 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloaded 268 | Ended. Stopping worker... 269 | Wait for terminating ... 270 | ``` 271 | 272 | This code equipped with a lot of comments, but you can simplify this example if you don't need to re-use worker when all your work is done. 273 | You can replace this huge loop with a smaller one: 274 | 275 | ```php 276 | // loops works only when worker is running. 277 | // just to show information about downloaded files 278 | while ($worker->state == Worker::RUNNING) { 279 | show_status($files); 280 | $worker->checkForFinish(); 281 | usleep(500000); 282 | } 283 | // when thread is in idle state, just stop right now (`true` as 1st argument forces it to send stop command and wait it termination). 284 | $worker->stop(true); 285 | ``` 286 | _Result:_ 287 | ```sh 288 | Enqueuing https://yandex.ru/images/today?size=1920x1080 with size 343103 289 | Enqueuing http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip with size 52693477 290 | Started https://yandex.ru/images/today?size=1920x1080 into /tmp/thrd_testbGsRBp 291 | Started http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip into /tmp/thrd_testv0E5Qy 292 | https://yandex.ru/images/today?size=1920x1080 downloaded 293 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 17.4% 294 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 36.82% 295 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 55.95% 296 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 76% 297 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 95.05% 298 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloaded 299 | ``` 300 | 301 | ## Few workers with WorkersPool 302 | 303 | But what if you need do few jobs simultaneously? You can create few instances of your worker, but it will be pain in the a$$ to manipulate and synchronize them. 304 | In this case you can use `WorkersPool`, which takes care of following this: 305 | 306 | 1. Start new workers at the beginning. 307 | 2. Dispatch your payload when you call **sendData** to any idle worker*. 308 | 3. Create new workers or delete redundant workers when you change **poolSize**. 309 | 4. Accept result of workers when they done and marks them as idle. 310 | 5. Monitor all worker threads and count idle, running, active (idle or running) workers. Provides interfaces to acquire this information. 311 | 6. Stop all workers when `WorkersPool` object is being destructed (via `unset()` or when script execution is going down). 312 | 7. *Can work in _dataOverhead_-mode. This mode enables sending extra payload to workers even when are already working on any task. If in this mode you sent few payloads to worker, it will not switch to **Worker::IDLE** state until all passed payloads have been processed. 313 | 8. Provide interface to appoint progress trackers and run them periodically until all threads become in `Worker::IDLE` state. 314 | 315 | Rich feature-set, right?! Let's rewrite our downloader with 2 threads to speed-up downloading. 316 | 317 | The **Settings and structures** block of code remains the same, but for demonstating purposes let's use two big files: 318 | ```php 319 | // ... 320 | $file_sources = ['http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip', 'http://soft.eurodir.ru/test-speed-100Mb.bin']; 321 | // ... 322 | ``` 323 | We need to update only code working with threads. 324 | 325 | ```php 326 | // create pool with downloading-workers 327 | $pool = new WorkersPool('DownloadWorker'); 328 | /** 329 | * Also, you can create pool out of object: 330 | * $pool = new WorkersPool(new DownloadWorker()); 331 | * This is useful, when you open shared sources within worker constructor so all workers can use them. 332 | */ 333 | // use only 2 workers (this is enough for our work) 334 | $pool->setPoolSize(2); 335 | 336 | // dispatch payload to workers. Notice! WorkersPool uses sendData() method instead of sendPayload(). 337 | foreach ($files as $file) { 338 | echo 'Enqueuing '.$file[0].' with size '.$file[1].PHP_EOL; 339 | $pool->sendData($file); 340 | } 341 | 342 | // register tracker, which should be launched every 0.5 seconds. 343 | // This method will hold the execution until all workers finish their work and go in Worker::IDLE state 344 | $pool->waitToFinish([ 345 | '0.5' => function ($pool) use (&$files) { 346 | show_status($files); 347 | }] 348 | ); 349 | ``` 350 | _Result:_ 351 | ```sh 352 | Enqueuing http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip with size 52693477 353 | Enqueuing http://soft.eurodir.ru/test-speed-100Mb.bin with size 102854656 354 | Started http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip into /tmp/thrd_testchcHBK 355 | Started http://soft.eurodir.ru/test-speed-100Mb.bin into /tmp/thrd_testt6dyJa 356 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 23.26% 357 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 1.3% 358 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 47.08% 359 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 3.08% 360 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 72.62% 361 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 5.66% 362 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloading 98.7% 363 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 8.05% 364 | http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip downloaded 365 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 19.15% 366 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 31.31% 367 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 43.69% 368 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 56.87% 369 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 71.95% 370 | http://soft.eurodir.ru/test-speed-100Mb.bin downloading 87.56% 371 | ``` 372 | 373 | As you can see, we got few improvements: 374 | 375 | 1. Our code became smaller and clearer. 376 | 2. We can run as many workers as we need. 377 | 3. We don't take care of worker termination anymore. Let WorkersPool work for us. 378 | 379 | # API 380 | ## Worker API 381 | 382 | - `sendPayload($data): int` - sends payload to worker and returns serial id for payload. 383 | - `checkForFinish(): array|null` - checks if worker sent result of payload and returns it in this case. 384 | - `checkForTermination(): boolean|null` - returns true if worker process has died. 385 | - `stop($wait = false): boolean` - sends stop command to worker thread. It uses _SIGTERM_ signal to allow worker thread finish work correctly and don't lose any data. If `$wait = true`, holds the execution until the worker is down. 386 | - `kill($wait = false): boolean` - sends stop command to worker thread. It uses _SIGKILL_ signal and not recommended except special cases, because it simply kills the worker thread and it loses all data being processed in that moment. If `$wait = true`, holds the execution until the worker is down. 387 | 388 | Information: 389 | - `isActive(): boolean` - true if worker is in `Worker::RUNNING` or `Worker::IDLE` states. 390 | - `isRunning(): boolean` - true if worker is in `Worker::RUNNING` state. 391 | - `isIdle(): boolean` - true if worker is in `Worker::IDLE` state. 392 | - `getPid(): int` - returns process id of worker. 393 | - `getCurrentPayload(): int` - returns serial number of last done payload. 394 | 395 | **Warning about worker re-using!** You can't restart a worker that has been terminated (with `stop()` or `kill()`), you need to create new worker and start it with `start()`. 396 | 397 | ## WorkersPool API 398 | 399 | - `countIdleWorkers(): integer` - returns number of workers that are in `Worker::IDLE` state. 400 | - `countRunningWorkers(): integer` - returns number of workers that are in `Worker::RUNNING` state. 401 | - `countActiveWorkers(): integer` - returns number of workers that are either in `Worker::RUNNING` or `Worker::IDLE` states. 402 | - `getRunningWorkers(): Worker[]` - returns workers that are in `Worker::RUNNING` state. 403 | - `enableDataOverhead()` / `disableDataOverhead()` - enables/disables _dataOverhead_-mode. 404 | - `sendData($data, $wait = false): null|boolean` - dispatches payload to any free worker. Behavior depends on _dataOverhead_ feature status: 405 | - When _dataOverhead_ is disabled and `$wait = false` (by default), this method returns `null` when no free workers available or `boolean` with status of dispatching (`true/false`). 406 | - When _dataOverhead_ is disabled (by default) and `$wait = true`, this method will hold the execution of the script until any worker became free, dispatch your payload to it and return the status of dispatching (`true/false`). 407 | - When _dataOverhead_ is enabled, this method will dispatch your payload to any free worker. If there's not free workers, it will put new tasks in workers internal queues, which will be processed. This method uses fair distribution between all workers (so you can be sure that 24 tasks will be distributed between 6 workers as 4 per worker). 408 | 409 | - `waitToFinish(array $trackers = null)` - holds the execution of script untill all workers go into `IDLE` state. 410 | 411 | # Predefined workers 412 | ## DownloadWorker 413 | 414 | As you've seen in examples, we created a downloading worker. But there is no need for this, we could use predefined `DownloadWorker` which does the same. 415 | 416 | - Full path: `wapmorgan\Threadable\DownloadWorker` 417 | - Description: downloads remote file and saves it on local server. 418 | - Payload (array): 419 | - `source` - remote file url 420 | - `target` - local file path 421 | 422 | ## ExtractWorker 423 | 424 | Zip-archives extractor. 425 | 426 | - Full path: `wapmorgan\Threadable\ExtractWorker` 427 | - Description: extracts given zip archive to a folder 428 | - Payload (array): 429 | - `archive` - archive filename 430 | - `output` - output directory 431 | 432 | # Use cases 433 | 434 | Examples of programs that can be built with `Threadable`: 435 | 436 | - Media converters / encoders 437 | - Data importers / exporters 438 | - Bots for social networks / messengers 439 | - Parsers / Scanners / Analyzers 440 | - Servers (_don't recommend unless you want to reinvent the wheel_) 441 | - ... 442 | -------------------------------------------------------------------------------- /bin/download_and_unpack: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file_to_download, 19 | 'size' => DownloadWorker::getRemoteFileSize($file_to_download), 20 | 'target' => ($target = tempnam(sys_get_temp_dir(), 'thrd_test')), 21 | 'archive' => $target, 22 | 'output' => __DIR__.'/output/', 23 | ]; 24 | } 25 | 26 | function printDownloadStatus(array $files) 27 | { 28 | $downloaded_files = 0; 29 | $total_percent = 0; 30 | $total_files = count($files); 31 | $total_size = 0; 32 | $downloaded_size = 0; 33 | foreach ($files as $file) { 34 | $total_size += $file['size']; 35 | 36 | if (!isset($file['percent'])) continue; 37 | if ($file['percent'] == 100) $downloaded_files++; 38 | $total_percent += $file['percent']; 39 | 40 | $downloaded_size += $file['size'] * ($file['percent']/100); 41 | } 42 | 43 | if ($downloaded_files === $total_files) 44 | echo "\r".'[ Downloaded '.$downloaded_files.' of '.$total_files.' ('.floor($downloaded_size / $total_size * 100).'%)]'; 45 | else 46 | echo "\r".'[ Downloaded '.$downloaded_files.' of '.$total_files.' ('.floor($downloaded_size / $total_size * 100).'%)]'; 47 | } 48 | 49 | function printExtractStatus(array $files, $start_time) 50 | { 51 | $extracted_files = 0; 52 | $total_files = count($files); 53 | foreach ($files as $file) { 54 | if (isset($file['extracted']) && $file['extracted']) 55 | $extracted_files++; 56 | } 57 | 58 | echo "\r".'[ Exracted '.$extracted_files.' of '.$total_files.' ('.(time() - $start_time).' sec)]'; 59 | } 60 | 61 | $result = BackgroundWork::doInBackgroundParallel(new DownloadWorker(), $files, 62 | function (Worker $worker, $payloadI, $payloadData) use (&$files) { 63 | clearstatcache(true, $payloadData['target']); 64 | $files[$payloadData['source']]['percent'] = floor(filesize($payloadData['target']) * 100 / $payloadData['size']); 65 | printDownloadStatus($files); 66 | }, 67 | function (Worker $worker, $payloadI, $payloadData, $payloadResult) use (&$files) { 68 | $files[$payloadData['source']]['percent'] = 100; 69 | printDownloadStatus($files); 70 | return true; 71 | } 72 | ); 73 | echo PHP_EOL; 74 | if (!$result) 75 | exit('Something went wrong'); 76 | echo 'All files downloaded successfully'.PHP_EOL; 77 | 78 | $start_time = time(); 79 | $result = BackgroundWork::doInBackgroundParallel(new ExtractWorker(), $files, 80 | function (Worker $worker, $payloadI, $payloadData) use (&$files, $start_time) { 81 | printExtractStatus($files, $start_time); 82 | }, 83 | function (Worker $worker, $payloadI, $payloadData, $payloadResult) use (&$files, $start_time) { 84 | $files[$payloadData['source']]['extracted'] = true; 85 | printExtractStatus($files, $start_time); 86 | return true; 87 | } 88 | ); 89 | 90 | echo PHP_EOL; 91 | if (!$result) 92 | exit('Something went wrong'); 93 | echo 'All files extracted successfully'.PHP_EOL; 94 | -------------------------------------------------------------------------------- /composer.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "wapmorgan/threadable", 3 | "description": "Easy-to-use threading library providing all basic features to run your code in parallel mode", 4 | "keywords": ["threads", "threading", "parallel"], 5 | "license": "GPL-3.0-only", 6 | "authors": [ 7 | { 8 | "name": "Sergey Vanyushin", 9 | "email": "wapmorgan@gmail.com", 10 | "role": "developer" 11 | } 12 | ], 13 | "suggest": { 14 | "ext-posix": "For real multi-threading", 15 | "ext-pcntl": "For real multi-threading", 16 | "ext-sockets": "For real multi-threading" 17 | }, 18 | "require-dev": { 19 | "phpunit/phpunit": "~4.8" 20 | }, 21 | "autoload": { 22 | "psr-4": { 23 | "wapmorgan\\Threadable\\": "src/" 24 | } 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /examples/example_file_downloading: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file) { 12 | if (file_exists($file['target'])) { 13 | clearstatcache(true, $file['target']); 14 | $downloaded_size = filesize($file['target']); 15 | if ($downloaded_size == $file['size']) { 16 | echo $file['source'].' downloaded'.PHP_EOL; 17 | unset($files[$i]); 18 | unlink($file['target']); 19 | } else if ($downloaded_size === 0) { 20 | // echo $file[0].' in queue'.PHP_EOL; 21 | } else { 22 | echo $file['source'].' downloading '.round($downloaded_size * 100 / $file['size'], 2).'%'.PHP_EOL; 23 | } 24 | } 25 | } 26 | } 27 | 28 | $file_sources = ['https://yandex.ru/images/today?size=1920x1080', 'http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip']; 29 | $files = []; 30 | foreach ($file_sources as $file_to_download) { 31 | $file_size = DownloadWorker::getRemoteFileSize($file_to_download); 32 | $output = tempnam(sys_get_temp_dir(), 'thrd_test'); 33 | $files[] = [ 34 | 'source' => $file_to_download, 35 | 'size' => $file_size, 36 | 'target' => $output, 37 | ]; 38 | } 39 | 40 | $worker = new DownloadWorker(); 41 | foreach ($files as $file) { 42 | echo 'Enqueuing '.$file['source'].' with size '.$file['size'].PHP_EOL; 43 | $worker->sendPayload($file); 44 | } 45 | 46 | while ($worker->state !== Worker::TERMINATED) { 47 | if ($worker->state === Worker::RUNNING) { 48 | show_status($files); 49 | $worker->checkForFinish(); 50 | usleep(5000000); 51 | } else if ($worker->state == Worker::IDLE) { 52 | echo 'Ended. Stopping worker...'.PHP_EOL; 53 | $worker->stop(); 54 | usleep(500000); 55 | } else if ($worker->state == Worker::TERMINATING) { 56 | echo 'Wait for terminating ...'.PHP_EOL; 57 | $worker->checkForTermination(); 58 | usleep(500000); 59 | } 60 | } 61 | echo 'Child terminated.'.PHP_EOL; 62 | 63 | foreach ($files as $file) { 64 | echo 'Checked '.$file['target'].': '; 65 | if (file_exists($file['target'])) { 66 | $actual_size = filesize($file['target']); 67 | if ($actual_size === $file['size']) 68 | echo 'is ok' . PHP_EOL; 69 | else 70 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 71 | unlink($file['target']); 72 | } else { 73 | echo 'not downloaded'.PHP_EOL; 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /examples/example_file_downloading_easy: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file_to_download, 15 | 'size' => DownloadWorker::getRemoteFileSize($file_to_download), 16 | 'target' => tempnam(sys_get_temp_dir(), 'thrd_test'), 17 | ]; 18 | } 19 | 20 | $result = BackgroundWork::doInBackground(new DownloadWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 21 | clearstatcache(true, $payloadData['target']); 22 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' downloading ' . round(filesize($payloadData['target']) * 100 / $payloadData['size'], 2) . '%'; 23 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 24 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' successfully downloaded (size '.filesize($payloadData['target']).')' . PHP_EOL; 25 | return true; 26 | }); 27 | 28 | if ($result) 29 | echo 'All files downloaded successfully'.PHP_EOL; 30 | 31 | foreach ($files as $file) { 32 | echo 'Checked '.$file['target'].': '; 33 | if (file_exists($file['target'])) { 34 | $actual_size = filesize($file['target']); 35 | if ($actual_size === $file['size']) 36 | echo 'is ok' . PHP_EOL; 37 | else 38 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 39 | unlink($file['target']); 40 | } else { 41 | echo 'not downloaded'.PHP_EOL; 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /examples/example_file_downloading_pool: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file) { 12 | if (file_exists($file['target'])) { 13 | clearstatcache(true, $file['target']); 14 | $downloaded_size = filesize($file['target']); 15 | if ($downloaded_size == $file['size']) { 16 | echo $file['source'].' downloaded'.PHP_EOL; 17 | unset($files[$i]); 18 | unlink($file['target']); 19 | } else if ($downloaded_size === 0) { 20 | // echo $file[0].' in queue'.PHP_EOL; 21 | } else { 22 | echo $file['source'].' downloading '.round($downloaded_size * 100 / $file['size'], 2).'%'.PHP_EOL; 23 | } 24 | } 25 | } 26 | } 27 | 28 | $file_sources = [/*'https://yandex.ru/images/today?size=1920x1080', */'http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip', 'http://soft.eurodir.ru/test-speed-100Mb.bin']; 29 | $files = []; 30 | foreach ($file_sources as $file_to_download) { 31 | $file_size = DownloadWorker::getRemoteFileSize($file_to_download); 32 | $output = tempnam(sys_get_temp_dir(), 'thrd_test'); 33 | $files[] = [ 34 | 'source' => $file_to_download, 35 | 'size' => $file_size, 36 | 'target' => $output, 37 | ]; 38 | } 39 | 40 | $pool = new WorkersPool('wapmorgan\Threadable\DownloadWorker'); 41 | $pool->setPoolSize(3); 42 | foreach ($files as $file) { 43 | echo 'Enqueuing '.$file['source'].' with size '.$file['size'].PHP_EOL; 44 | $pool->sendData($file); 45 | } 46 | 47 | $pool->waitToFinish([ 48 | '4' => function ($pool) use (&$files) { 49 | show_status($files); 50 | }] 51 | ); 52 | 53 | foreach ($files as $file) { 54 | echo 'Checked '.$file['target'].': '; 55 | if (file_exists($file['target'])) { 56 | $actual_size = filesize($file['target']); 57 | if ($actual_size === $file['size']) 58 | echo 'is ok' . PHP_EOL; 59 | else 60 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 61 | unlink($file['target']); 62 | } else { 63 | echo 'not downloaded'.PHP_EOL; 64 | } 65 | } 66 | -------------------------------------------------------------------------------- /examples/example_file_downloading_pool_easy: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file_to_download, 17 | 'size' => $file_size, 18 | 'target' => $output, 19 | ]; 20 | } 21 | 22 | $result = BackgroundWork::doInBackgroundParallel(new DownloadWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 23 | clearstatcache(true, $payloadData['target']); 24 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' downloading ' . round(filesize($payloadData['target']) * 100 / $payloadData['size'], 2) . '%'; 25 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 26 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' successfully downloaded (size '.filesize($payloadData['target']).')' . PHP_EOL; 27 | return true; 28 | }); 29 | 30 | if ($result) 31 | echo 'All files downloaded successfully'.PHP_EOL; 32 | 33 | foreach ($files as $file) { 34 | echo 'Checked '.$file['target'].': '; 35 | if (file_exists($file['target'])) { 36 | $actual_size = filesize($file['target']); 37 | if ($actual_size === $file['size']) 38 | echo 'is ok' . PHP_EOL; 39 | else 40 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 41 | unlink($file['target']); 42 | } else { 43 | echo 'not downloaded'.PHP_EOL; 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /examples/example_file_downloading_smaller: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file) { 12 | if (file_exists($file['target'])) { 13 | clearstatcache(true, $file['target']); 14 | $downloaded_size = filesize($file['target']); 15 | if ($downloaded_size == $file['size']) { 16 | echo $file['source'].' downloaded'.PHP_EOL; 17 | unset($files[$i]); 18 | unlink($file['target']); 19 | } else if ($downloaded_size === 0) { 20 | // echo $file[0].' in queue'.PHP_EOL; 21 | } else { 22 | echo $file['source'].' downloading '.round($downloaded_size * 100 / $file['size'], 2).'%'.PHP_EOL; 23 | } 24 | } 25 | } 26 | } 27 | 28 | $file_sources = ['https://yandex.ru/images/today?size=1920x1080', 'http://hosting-obzo-ru.1gb.ru/hosting-obzor.ru.zip']; 29 | $files = []; 30 | foreach ($file_sources as $file_to_download) { 31 | $file_size = DownloadWorker::getRemoteFileSize($file_to_download); 32 | $output = tempnam(sys_get_temp_dir(), 'thrd_test'); 33 | $files[] = [ 34 | 'source' => $file_to_download, 35 | 'size' => $file_size, 36 | 'target' => $output, 37 | ]; 38 | } 39 | 40 | $worker = new DownloadWorker(); 41 | $worker->start(); 42 | foreach ($files as $file) { 43 | echo 'Enqueuing '.$file['source'].' with size '.$file['size'].PHP_EOL; 44 | $worker->sendPayload($file); 45 | } 46 | 47 | while ($worker->state == Worker::RUNNING) { 48 | show_status($files); 49 | $worker->checkForFinish(); 50 | usleep(500000); 51 | } 52 | $worker->stop(true); 53 | 54 | foreach ($files as $file) { 55 | echo 'Checked '.$file['target'].': '; 56 | if (file_exists($file['target'])) { 57 | $actual_size = filesize($file['target']); 58 | if ($actual_size === $file['size']) 59 | echo 'is ok' . PHP_EOL; 60 | else 61 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 62 | unlink($file['target']); 63 | } else { 64 | echo 'not downloaded'.PHP_EOL; 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /examples/example_files_download_extract: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file_to_download, 23 | 'size' => DownloadWorker::getRemoteFileSize($file_to_download), 24 | 'target' => $target_file, 25 | 'archive' => $target_file, 26 | 'output' => $target_file.'.extracted/', 27 | ]; 28 | } 29 | 30 | $result = BackgroundWork::doInBackground(new DownloadWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 31 | clearstatcache(true, $payloadData['target']); 32 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' downloading ' . round(filesize($payloadData['target']) * 100 / $payloadData['size'], 2) . '%'; 33 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 34 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' successfully downloaded (size '.filesize($payloadData['target']).')' . PHP_EOL; 35 | return true; 36 | }); 37 | 38 | if ($result) 39 | echo 'All files downloaded successfully'.PHP_EOL; 40 | 41 | $result = BackgroundWork::doInBackground(new ExtractWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 42 | clearstatcache(true, $payloadData['target']); 43 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['archive']) . ' extracting ...'; 44 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 45 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['archive']) . ' successfully extracted to ' . $payloadData['output'] . PHP_EOL; 46 | return true; 47 | }); 48 | 49 | foreach ($files as $file) { 50 | echo 'Checked '.$file['target'].': '; 51 | if (file_exists($file['target'])) { 52 | $actual_size = filesize($file['target']); 53 | if ($actual_size === $file['size']) 54 | echo 'is ok' . PHP_EOL; 55 | else 56 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 57 | unlink($file['target']); 58 | } else { 59 | echo 'not downloaded'.PHP_EOL; 60 | } 61 | } 62 | -------------------------------------------------------------------------------- /examples/example_files_download_extract_parallel: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | $file_to_download, 23 | 'size' => DownloadWorker::getRemoteFileSize($file_to_download), 24 | 'target' => $target_file, 25 | 'archive' => $target_file, 26 | 'output' => $target_file.'.extracted/', 27 | ]; 28 | } 29 | 30 | $result = BackgroundWork::doInBackgroundParallel(new DownloadWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 31 | clearstatcache(true, $payloadData['target']); 32 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' downloading ' . round(filesize($payloadData['target']) * 100 / $payloadData['size'], 2) . '%'; 33 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 34 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['source']) . ' successfully downloaded (size '.filesize($payloadData['target']).')' . PHP_EOL; 35 | return true; 36 | }); 37 | 38 | if ($result) 39 | echo 'All files downloaded successfully'.PHP_EOL; 40 | 41 | $result = BackgroundWork::doInBackgroundParallel(new ExtractWorker(), $files, function (Worker $worker, $payloadI, $payloadData) { 42 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['archive']) . ' extracting ...'; 43 | }, function (Worker $worker, $payloadI, $payloadData, $payloadResult) { 44 | echo "\r" . '#' . ($payloadI + 1) . '. ' . basename($payloadData['archive']) . ' successfully extracted to ' . $payloadData['output'] . PHP_EOL; 45 | return true; 46 | }); 47 | 48 | if ($result) 49 | echo 'All files extracted successfully'.PHP_EOL; 50 | 51 | foreach ($files as $file) { 52 | echo 'Checked '.$file['target'].': '; 53 | if (file_exists($file['target'])) { 54 | $actual_size = filesize($file['target']); 55 | if ($actual_size === $file['size']) 56 | echo 'is ok' . PHP_EOL; 57 | else 58 | echo 'downloaded ' . $actual_size . ' of ' . $file['size'] . ' bytes' . PHP_EOL; 59 | unlink($file['target']); 60 | } else { 61 | echo 'not downloaded'.PHP_EOL; 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /examples/test: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | sendPayload([123]); 12 | echo $worker->getPid().' state:'.$worker->state.PHP_EOL; 13 | 14 | while ($worker->state != Worker::TERMINATED) { 15 | echo $worker->getPid().' state:'.$worker->state.PHP_EOL; 16 | if ($worker->state == Worker::RUNNING) { 17 | echo 'Running. Keep waiting...'.PHP_EOL; 18 | $worker->checkForFinish(); 19 | sleep(1); 20 | } else if ($worker->state == Worker::IDLE) { 21 | echo 'Ended. Stopping worker...'.PHP_EOL; 22 | $worker->stop(); 23 | sleep(1); 24 | } else if ($worker->state == Worker::TERMINATING) { 25 | echo 'Wait for terminating ...'.PHP_EOL; 26 | $worker->checkForTermination(); 27 | sleep(1); 28 | } 29 | } 30 | echo 'Child terminated.'.PHP_EOL; 31 | -------------------------------------------------------------------------------- /examples/test_highload: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | state != Worker::IDLE) { 25 | echo $worker->getPid().' state:'.$worker->state.PHP_EOL; 26 | if ($worker->state == Worker::RUNNING) { 27 | echo 'Running. Keep waiting...'.PHP_EOL; 28 | $worker->checkForFinish(); 29 | sleep(1); 30 | } 31 | } 32 | } 33 | 34 | $worker = new CpuEatingWorker(); 35 | $worker->sendPayload([123]); 36 | $worker->sendPayload([456]); 37 | $worker->sendPayload([789]); 38 | waitUntilFinish($worker); 39 | 40 | while ($worker->state != Worker::TERMINATED) { 41 | if ($worker->state == Worker::IDLE) { 42 | echo 'Ended. Stopping worker...'.PHP_EOL; 43 | $worker->stop(); 44 | sleep(1); 45 | } else if ($worker->state == Worker::TERMINATING) { 46 | echo 'Wait for terminating ...'.PHP_EOL; 47 | $worker->checkForTermination(); 48 | sleep(1); 49 | } 50 | } 51 | echo 'Child terminated.'.PHP_EOL; 52 | -------------------------------------------------------------------------------- /examples/test_pool: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | setPoolSize(4); 9 | 10 | echo 'Running workers: ', $pool->countRunningWorkers().PHP_EOL; 11 | echo 'Idle workers: ', $pool->countIdleWorkers().PHP_EOL; 12 | 13 | $pool->sendData([123]); 14 | $pool->sendData([456]); 15 | $pool->sendData([789]); 16 | 17 | $i = 0; 18 | while (($i++) < 5) { 19 | echo 'Running workers: ', $pool->countRunningWorkers().PHP_EOL; 20 | echo 'Idle workers: ', $pool->countIdleWorkers().PHP_EOL; 21 | foreach ($pool->getWorkers() as $worker) { 22 | echo ': Worker '.$worker->getPid().' in state '.$worker->state.PHP_EOL; 23 | } 24 | usleep(500000); 25 | } 26 | 27 | $pool->setPoolSize(0); 28 | $pool->sendData([null]); 29 | 30 | $i = 0; 31 | while (($i++) < 5) { 32 | echo 'Running workers: ', $pool->countRunningWorkers().PHP_EOL; 33 | echo 'Idle workers: ', $pool->countIdleWorkers().PHP_EOL; 34 | foreach ($pool->getWorkers() as $worker) { 35 | echo ': Worker '.$worker->getPid().' in state '.$worker->state.PHP_EOL; 36 | } 37 | usleep(500000); 38 | } 39 | -------------------------------------------------------------------------------- /examples/test_pool_highload: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | setPoolSize(8); 21 | $pool->enableDataOverhead(); 22 | 23 | for ($i = 0; $i < 12; $i++) 24 | $pool->sendData(['i' => $i]); 25 | 26 | var_dump($pool->getOverheadCounters()); 27 | 28 | $pool->waitToFinish([ 29 | '0.5' => function (WorkersPool $pool) { 30 | echo 'Microtime: '.microtime(true)."\t".'Running threads: '.$pool->countRunningWorkers().PHP_EOL; 31 | } 32 | ]); 33 | echo $pool->countIdleWorkers().PHP_EOL; 34 | echo 'Done'.PHP_EOL; 35 | -------------------------------------------------------------------------------- /examples/test_pool_object: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | regenerate(); 15 | } 16 | 17 | public function __clone() 18 | { 19 | $this->regenerate(); 20 | } 21 | 22 | public function onPayload($payload) 23 | { 24 | $time = mt_rand(1, 5); 25 | echo 'this is an object worker '.$payload['n'].'; sleeping for '.$time.' sec'.PHP_EOL; 26 | echo 'signature: '.$this->signature.PHP_EOL; 27 | sleep($time); 28 | } 29 | 30 | private function regenerate() 31 | { 32 | $this->signature = rand(1, 10000); 33 | } 34 | } 35 | 36 | $pool = new WorkersPool(new ObjectWorker()); 37 | $pool->setPoolSize(8); 38 | $pool->enableDataOverhead(); 39 | 40 | for ($i = 0; $i < 24; $i++) 41 | $pool->sendData(['n' => $i]); 42 | 43 | $pool->waitToFinish([ 44 | '0.5' => function (WorkersPool $pool) { 45 | echo 'Microtime: '.microtime(true)."\t".'Running threads: '.$pool->countRunningWorkers().PHP_EOL; 46 | } 47 | ]); 48 | echo $pool->countIdleWorkers().PHP_EOL; 49 | echo 'Done'.PHP_EOL; 50 | -------------------------------------------------------------------------------- /examples/test_pool_overhead: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | setPoolSize(4); 19 | $pool->enableDataOverhead(); 20 | 21 | for ($i = 0; $i < 12; $i++) 22 | $pool->sendData(['seconds' => (12 - $i)]); 23 | 24 | var_dump($pool->getOverheadCounters()); 25 | 26 | $pool->waitToFinish([ 27 | '0.5' => function (WorkersPool $pool) { 28 | echo 'Microtime: '.microtime(true)."\t".'Running threads: '.$pool->countRunningWorkers().PHP_EOL; 29 | } 30 | ]); 31 | -------------------------------------------------------------------------------- /examples/test_pool_reuse: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | setPoolSize(1); 19 | $pool->enableDataOverhead(); 20 | 21 | for ($i = 0; $i < 3; $i++) 22 | $pool->sendData(['seconds' => $i + 3, 'i' => $i]); 23 | 24 | $pool->waitToFinish([ 25 | '0.5' => function (WorkersPool $pool) { 26 | echo 'Microtime: '.microtime(true)."\t".'Running threads: '.$pool->countRunningWorkers().PHP_EOL; 27 | } 28 | ]); 29 | -------------------------------------------------------------------------------- /examples/test_pool_wait: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | setPoolSize(4); 19 | $pool->enableDataOverhead(); 20 | 21 | for ($i = 0; $i < 9; $i++) 22 | $pool->sendData(['seconds' => rand(2, 5)]); 23 | 24 | var_dump($pool->getWorkers()); 25 | 26 | $pool->waitToFinish([ 27 | '0.5' => function (WorkersPool $pool) { 28 | echo 'Microtime: '.microtime(true)."\t".'Running threads: '.$pool->countRunningWorkers().PHP_EOL; 29 | } 30 | ]); 31 | -------------------------------------------------------------------------------- /examples/test_reuse: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env php 2 | state != Worker::IDLE) { 13 | echo $worker->getPid().' state:'.$worker->state.PHP_EOL; 14 | if ($worker->state == Worker::RUNNING) { 15 | echo 'Running. Keep waiting...'.PHP_EOL; 16 | $worker->checkForFinish(); 17 | sleep(1); 18 | } 19 | } 20 | echo 'Finished. Adding new payload ...'.PHP_EOL; 21 | } 22 | 23 | $worker = new Worker(); 24 | $worker->sendPayload([123]); 25 | waitUntilFinish($worker); 26 | $worker->sendPayload([456]); 27 | waitUntilFinish($worker); 28 | $worker->sendPayload([789]); 29 | waitUntilFinish($worker); 30 | 31 | while ($worker->state != Worker::TERMINATED) { 32 | if ($worker->state == Worker::IDLE) { 33 | echo 'Ended. Stopping worker...'.PHP_EOL; 34 | $worker->stop(); 35 | sleep(1); 36 | } else if ($worker->state == Worker::TERMINATING) { 37 | echo 'Wait for terminating ...'.PHP_EOL; 38 | $worker->checkForTermination(); 39 | sleep(1); 40 | } 41 | } 42 | echo 'Child terminated.'.PHP_EOL; 43 | -------------------------------------------------------------------------------- /src/BackgroundWork.php: -------------------------------------------------------------------------------- 1 | start(); 23 | foreach ($payloads as $i => $payload) 24 | $worker->sendPayload($payload); 25 | 26 | $result = true; 27 | 28 | while ($worker->isRunning()) { 29 | // worker done a job 30 | if (($payload_result = $worker->checkForFinish()) !== null) { 31 | if ($onPayloadFinishCallback !== null) 32 | $result = call_user_func($onPayloadFinishCallback, $worker, key($payloads), current($payloads), $payload_result[1]) && $result; 33 | else 34 | $result = (boolean)$payload_result[1] && $result; 35 | next($payloads); 36 | } else 37 | call_user_func($payloadHandlingCallback, $worker, key($payloads), current($payloads)); 38 | 39 | usleep($sleepMicroTime); 40 | } 41 | 42 | $worker->stop(true); 43 | 44 | return $result; 45 | } 46 | 47 | /** 48 | * @param Worker $worker 49 | * @param array $payloads An array of all payloads to worker 50 | * @param null $payloadHandlingCallback Callback that will be called every $sleepMicrotime seconds for every running worker at that monent. 51 | * Should have signature: callback(Worker $worker, $payloadNumber, $payload) 52 | * @param callable|null $onPayloadFinishCallback Callback that should be called every time one payload is fully handled with worker output. 53 | * Also, this callback should return either true or false to indicate that work done right. 54 | * This affects result of doInBackground() call. 55 | * @param int $sleepMicroTime Time between checks for worker state (in milliseconds) 56 | * @param int $poolSize Size of worker's pool. If one of BackgroundWork constants, will be calculated automatically. 57 | * @return bool True if all payloads successfully handled. 58 | * @throws \Exception 59 | */ 60 | public static function doInBackgroundParallel(Worker $worker, array $payloads, $payloadHandlingCallback = null, 61 | $onPayloadFinishCallback = null, $sleepMicroTime = 1000, $poolSize = self::BY_CPU_NUMBER) 62 | { 63 | $workers_pool = new WorkersPool($worker); 64 | 65 | if ($poolSize === self::BY_CPU_NUMBER) { 66 | if (($poolSize = self::getNumberOfCpuCores()) === false) 67 | $poolSize = 4; 68 | } 69 | 70 | $workers_pool->setPoolSize($poolSize); 71 | $workers_pool->enableDataOverhead(); 72 | 73 | // [payload_i][worker_pid] => payload_i_for_worker 74 | $dispatched_payloads = []; 75 | $current_payloads = []; 76 | 77 | $result = true; 78 | 79 | $workers_pool->registerOnPayloadFinishCallback(function (Worker $worker, $payloadI, $payloadResult) 80 | use ($current_payloads, $onPayloadFinishCallback, $payloads, &$result, &$dispatched_payloads) { 81 | $worker_payload = $dispatched_payloads[$worker->getPid()][$payloadI]; 82 | $result = call_user_func($onPayloadFinishCallback, $worker, $worker_payload, $payloads[$worker_payload], $payloadResult) && $result; 83 | unset($current_payloads[$worker->getPid()]); 84 | }); 85 | 86 | // if not all payloads dispatched and there's idle worker -> dispatch 87 | if (count($dispatched_payloads) < count($payloads)/* && $workers_pool->countIdleWorkers() > 0*/) { 88 | foreach ($payloads as $i => $payload) { 89 | $dispatch_result = $workers_pool->sendData($payload); 90 | $dispatched_payloads[$dispatch_result[0]->getPid()][$dispatch_result[1]] = $i; 91 | } 92 | } 93 | 94 | // launch callback with running workers and their's payloads 95 | while ($workers_pool->countRunningWorkers() > 0) { 96 | if ($payloadHandlingCallback !== null) { 97 | foreach ($workers_pool->getRunningWorkers() as $runningWorker) { 98 | $worker_payload = $dispatched_payloads[$runningWorker->getPid()][$runningWorker->getCurrentPayload()]; 99 | call_user_func($payloadHandlingCallback, $runningWorker, $worker_payload, $payloads[$worker_payload]); 100 | } 101 | } 102 | 103 | usleep($sleepMicroTime); 104 | } 105 | 106 | return $result; 107 | } 108 | 109 | /** 110 | * @return int|boolean Number of cpu cores or false 111 | */ 112 | protected static function getNumberOfCpuCores() 113 | { 114 | if (!file_exists('/proc/cpuinfo')) 115 | return false; 116 | 117 | exec('grep \'model name\' /proc/cpuinfo | wc -l', $output, $commandResult); 118 | if ($commandResult !== 0) 119 | return false; 120 | $cores = (int)trim($output[0]); 121 | return $cores > 0 ? $cores : false; 122 | } 123 | } -------------------------------------------------------------------------------- /src/DownloadWorker.php: -------------------------------------------------------------------------------- 1 | open($data['archive']); 28 | if ($result !== true) 29 | throw new Exception('Could not open archive: '.$archive->getStatusString()); 30 | 31 | return $archive->extractTo($data['output']); 32 | } 33 | } -------------------------------------------------------------------------------- /src/ForkingThread.php: -------------------------------------------------------------------------------- 1 | simulation = true; 73 | } 74 | 75 | /** 76 | * @return bool 77 | */ 78 | public function isSimulated() 79 | { 80 | return $this->simulation; 81 | } 82 | 83 | /** 84 | * Disables self-management. Use only if you manage workers via WorkersPool. 85 | */ 86 | public function disableSelfManagement() 87 | { 88 | $this->useSignals = true; 89 | $this->selfManaged = false; 90 | return $this; 91 | } 92 | 93 | public function __destruct() 94 | { 95 | // this is Worker manager thread 96 | if ($this->selfManaged && $this->pid !== null && $this->isActive()) 97 | $this->stop(true); 98 | } 99 | 100 | /** 101 | * Starts a worker and begins listening for incoming payload. 102 | * This method should not be invoked when new object is constructing 103 | * because a Worker can be cloned before starting working. 104 | * @throws \Exception 105 | */ 106 | public function start() 107 | { 108 | if (!$this->simulation) { 109 | $sockets = []; 110 | socket_create_pair(AF_UNIX, SOCK_STREAM, 0, $sockets); 111 | $pid = getmypid(); 112 | 113 | $this->pid = $this->forkThread([$this, 'onWorkerStart'], [$sockets[1], $pid]); 114 | $this->toChild = $sockets[0]; 115 | socket_set_nonblock($this->toChild); 116 | } 117 | } 118 | 119 | /** 120 | * Stops a worker and ends the process 121 | * @param boolean $wait If true, this method will hold execution till the process end 122 | * @return boolean Null, if worker is not active. False, if signal can't be sent to worker. 123 | * True, if signal sent OR signal sent and worker terminated (if $wait = true). 124 | */ 125 | public function stop($wait = false) 126 | { 127 | if ($this->simulation) { 128 | $this->state = self::TERMINATED; 129 | return true; 130 | } 131 | 132 | if (!is_dir('/proc/'.$this->pid)) 133 | return null; 134 | 135 | $this->state = self::TERMINATING; 136 | 137 | if (!posix_kill($this->pid, SIGTERM)) 138 | return false; 139 | 140 | if ($wait) { 141 | pcntl_waitpid($this->pid, $status); 142 | $this->state = self::TERMINATED; 143 | } else { 144 | if (!is_dir('/proc/'.$this->pid)) 145 | $this->state = self::TERMINATED; 146 | } 147 | return true; 148 | } 149 | 150 | /** 151 | * Stops a worker and kills the process 152 | * @param boolean $wait If true, this method will hold execution till the process end 153 | * @return boolean Null, if worker is not active. False, if signal can't be sent to worker. 154 | * True, if signal sent OR signal sent and worker terminated (if $wait = true). 155 | */ 156 | public function kill($wait = false) 157 | { 158 | if ($this->simulation) { 159 | $this->state = self::TERMINATED; 160 | return true; 161 | } 162 | 163 | if (!is_dir('/proc/'.$this->pid)) 164 | return null; 165 | 166 | $this->state = self::TERMINATING; 167 | 168 | if (!posix_kill($this->pid, SIGKILL)) 169 | return false; 170 | 171 | if ($wait) { 172 | pcntl_waitpid($this->pid, $status); 173 | $this->state = self::TERMINATED; 174 | } else { 175 | if (!is_dir('/proc/'.$this->pid)) 176 | $this->state = self::TERMINATED; 177 | } 178 | return true; 179 | } 180 | 181 | /** 182 | * @return boolean Returns whether worker is running right now. 183 | */ 184 | public function isRunning() 185 | { 186 | return $this->state === self::RUNNING; 187 | } 188 | 189 | /** 190 | * @return boolean Returns whether worker is in idle state. 191 | */ 192 | public function isIdle() 193 | { 194 | return $this->state === self::IDLE; 195 | } 196 | 197 | /** 198 | * @return boolean Returns whether worker is active right now (running or idle). 199 | */ 200 | public function isActive() 201 | { 202 | return in_array($this->state, [self::RUNNING, self::IDLE], true); 203 | } 204 | 205 | /** 206 | * @return array|mixed|null 207 | */ 208 | public function checkForFinish() 209 | { 210 | if ($this->simulation) { 211 | if ($this->reportedPayloadsCounter < count($this->simulationBuffer)) { 212 | $payload_result = $this->simulationBuffer[$this->reportedPayloadsCounter]; 213 | return [$this->reportedPayloadsCounter++, $payload_result]; 214 | } 215 | return null; 216 | } 217 | 218 | if (strlen($msg_size_bytes = socket_read($this->toChild, 4)) === 4) { 219 | $data = unpack('N', $msg_size_bytes); 220 | $msg_size = $data[1]; 221 | 222 | $msg = socket_read($this->toChild, $msg_size); 223 | $data = unserialize($msg); 224 | $this->remainingPayloadsCounter--; 225 | 226 | // mark as idle only if this last payload 227 | if ($this->remainingPayloadsCounter === 0) 228 | $this->state = self::IDLE; 229 | 230 | return [$this->reportedPayloadsCounter++, $data]; 231 | } 232 | return null; 233 | } 234 | 235 | /** 236 | * @return null|boolean 237 | */ 238 | public function checkForTermination() 239 | { 240 | if ($this->simulation) { 241 | return null; 242 | } 243 | 244 | $pid = pcntl_waitpid($this->pid, $status, WNOHANG); 245 | if ($pid === $this->pid) { 246 | $this->state = self::TERMINATED; 247 | socket_close($this->toChild); 248 | return true; 249 | } 250 | return null; 251 | } 252 | 253 | /** 254 | * Sends payload to worker 255 | * @param mixed $data 256 | * @return int Serial number of payload 257 | * @throws \Exception 258 | */ 259 | public function sendPayload($data) 260 | { 261 | // if not forked yet 262 | if (!$this->simulation && $this->pid === null) { 263 | $this->start(); 264 | } 265 | 266 | $this->remainingPayloadsCounter++; 267 | $this->state = self::RUNNING; 268 | 269 | if ($this->simulation) { 270 | $result = $this->sentPayloadsCounter++; 271 | $this->simulationBuffer[$result] = $this->onPayload($data); 272 | $this->state = self::IDLE; 273 | return $result; 274 | } 275 | 276 | $data = serialize($data); 277 | // write payload to socket 278 | socket_write($this->toChild, pack('N', strlen($data))); 279 | socket_write($this->toChild, $data); 280 | 281 | return $this->sentPayloadsCounter++; 282 | } 283 | 284 | /** 285 | * @return integer The process ID of the worker 286 | */ 287 | public function getPid() 288 | { 289 | return $this->pid; 290 | } 291 | 292 | /** 293 | * @return int 294 | */ 295 | public function getCurrentPayload() 296 | { 297 | return $this->reportedPayloadsCounter; 298 | } 299 | 300 | /// 301 | /// Child methods below only 302 | /// 303 | 304 | /** 305 | * The first method that is being called when the worker starts. 306 | * @param resource $socket Socket to communicate with master process and transport payload / result. 307 | * @param integer $parentPid The process ID of the parent 308 | */ 309 | protected function onWorkerStart($socket, $parentPid) 310 | { 311 | declare(ticks = 1); 312 | // set signal handler 313 | pcntl_signal(SIGTERM, [$this, 'onSigTerm']); 314 | 315 | $this->toParent = $socket; 316 | $this->parentPid = $parentPid; 317 | socket_set_nonblock($this->toParent); 318 | $i = 0; 319 | while (!$this->termAccepted) { 320 | // echo ($i++).' try'.PHP_EOL; 321 | // sleep for sometime 322 | if (strlen($msg_size_bytes = socket_read($this->toParent, 4)) != 4) { 323 | usleep($this->checkMicroTime); 324 | continue; 325 | } 326 | $data = unpack('N', $msg_size_bytes); 327 | $msg_size = $data[1]; 328 | 329 | $msg = socket_read($this->toParent, $msg_size); 330 | $data = unserialize($msg); 331 | 332 | // echo '[Payload] Msg('.$msg_size.'): '.$msg.PHP_EOL; 333 | 334 | // launch worker to do it's work 335 | $result = call_user_func([$this, 'onPayload'], $data); 336 | $data = serialize($result); 337 | 338 | // write result to socket 339 | socket_write($this->toParent, pack('N', strlen($data))); 340 | // echo '[Finish] Msg('.strlen($data).'): '.$data.PHP_EOL; 341 | socket_write($this->toParent, $data); 342 | 343 | // send SIGUSR1 to parent to indicate that's we've finished 344 | if ($this->useSignals) 345 | posix_kill($this->parentPid, SIGUSR1); 346 | } 347 | socket_close($this->toParent); 348 | // notify we ended 349 | if ($this->useSignals) 350 | posix_kill($this->parentPid, SIGUSR2); 351 | } 352 | 353 | /** 354 | * The main handler and work executor in worker. Accepts all payload and should do all the work to process it. 355 | * @return boolean 356 | */ 357 | abstract public function onPayload($payload); 358 | 359 | 360 | /** 361 | * SIGTERM Handler to gracefully stop worker without losing any data. 362 | */ 363 | public function onSigTerm() 364 | { 365 | $this->termAccepted = true; 366 | } 367 | } 368 | -------------------------------------------------------------------------------- /src/WorkersPool.php: -------------------------------------------------------------------------------- 1 | class = $classOrObject; 65 | } else if (is_object($classOrObject)){ 66 | if (!($classOrObject instanceof Worker)) 67 | throw new Exception('Worker object is not a Worker child!'); 68 | $this->object = $classOrObject->disableSelfManagement(); 69 | } else { 70 | throw new Exception('Worker should be a class name or an object!'); 71 | } 72 | 73 | if ($this->masterThreadId === null) 74 | $this->masterThreadId = getmypid(); 75 | 76 | if (($this->object !== null && !$this->object->isSimulated()) || ForkingThread::supportsForking()) { 77 | pcntl_signal(SIGUSR2, [$this, 'onSigUsr2']); 78 | pcntl_signal(SIGUSR1, [$this, 'onSigUsr1']); 79 | pcntl_signal(SIGCHLD, [$this, 'onSigChld']); 80 | } 81 | } 82 | 83 | /** 84 | * Destruct workers if still active 85 | */ 86 | public function __destruct() 87 | { 88 | if (getmypid() === $this->masterThreadId) { 89 | // echo 'Destructing workers'.PHP_EOL; 90 | foreach ($this->workers as $worker) { 91 | if ($worker->isActive()) 92 | $worker->stop(); 93 | } 94 | } 95 | } 96 | 97 | /** 98 | * @param int $newSize 99 | */ 100 | public function setPoolSize($newSize) 101 | { 102 | if ($this->newSize != $newSize) 103 | $this->newSize = $newSize; 104 | } 105 | 106 | /** 107 | * @return int 108 | */ 109 | public function countActiveWorkers() 110 | { 111 | $i = 0; 112 | foreach ($this->workers as $worker) { 113 | if (in_array($worker->state, [Worker::RUNNING, Worker::IDLE], true)) $i++; 114 | } 115 | return $i; 116 | } 117 | 118 | /** 119 | * @return int 120 | */ 121 | public function countRunningWorkers() 122 | { 123 | $i = 0; 124 | foreach ($this->workers as $worker) { 125 | if ($worker->state === Worker::RUNNING) $i++; 126 | } 127 | return $i; 128 | } 129 | 130 | /** 131 | * @return int 132 | */ 133 | public function countIdleWorkers() 134 | { 135 | $i = 0; 136 | foreach ($this->workers as $worker) { 137 | if ($worker->state === Worker::IDLE) $i++; 138 | } 139 | return $i; 140 | } 141 | 142 | /** 143 | * @return Worker[] 144 | */ 145 | public function getRunningWorkers() 146 | { 147 | $workers = []; 148 | foreach ($this->workers as $worker) { 149 | if ($worker->state === Worker::RUNNING) 150 | $workers[] = $worker; 151 | } 152 | return $workers; 153 | } 154 | 155 | /** 156 | * @return $this 157 | */ 158 | public function enableDataOverhead() 159 | { 160 | $this->dataOverhead = true; 161 | return $this; 162 | } 163 | 164 | /** 165 | * @return $this 166 | */ 167 | public function disableDataOverhead() 168 | { 169 | $this->dataOverhead = false; 170 | return $this; 171 | } 172 | 173 | /** 174 | * @param $data 175 | * @param bool $wait 176 | * @return array|null Returns array with Worker object and number of payload in worker's queue 177 | * @throws Exception 178 | */ 179 | public function sendData($data, $wait = false) 180 | { 181 | $this->checkSize(true); 182 | 183 | // wait for any worker to get free 184 | if ($this->countIdleWorkers() === 0 && !$this->dataOverhead) { 185 | if (!$wait) 186 | return null; 187 | else { 188 | while ($this->countIdleWorkers() === 0) { 189 | usleep($this->waitPeriod); 190 | } 191 | } 192 | } 193 | 194 | // deploy payload 195 | foreach ($this->workers as $i => $worker) { 196 | if ($worker->state === Worker::IDLE) { 197 | if ($this->overheadCounters[$i] > 0) 198 | $this->overheadCounters[$i] = 0; 199 | 200 | if ($worker->isSimulated()) { 201 | return [$worker, $worker->sendPayload($data)]; 202 | } else { 203 | return [$worker, $worker->sendPayload($data)]; 204 | } 205 | 206 | } 207 | } 208 | 209 | if ($this->dataOverhead) { 210 | asort($this->overheadCounters); 211 | foreach ($this->overheadCounters as $i => $counter) { 212 | if ($this->workers[$i]->isActive()) { 213 | // echo 'Sending overhead data to '.$this->workers[$i]->getPid().PHP_EOL; 214 | $this->overheadCounters[$i]++; 215 | 216 | if ($worker->isSimulated()) { 217 | return [$this->workers[$i], $this->workers[$i]->sendPayload($data)]; 218 | } else { 219 | return [$this->workers[$i], $this->workers[$i]->sendPayload($data)]; 220 | } 221 | } 222 | } 223 | } 224 | } 225 | 226 | /** 227 | * @param null|callable $callback Callable should have signature (payload_i, payload_result) 228 | * @return $this 229 | * @throws Exception 230 | */ 231 | public function registerOnPayloadFinishCallback($callback) 232 | { 233 | if ($callback !== null && !is_callable($callback)) 234 | throw new Exception('Can not use '.print_r($callback, true).' as callback'); 235 | $this->payloadFinishCallback = $callback; 236 | return $this; 237 | } 238 | 239 | /** 240 | * 241 | */ 242 | public function onSigUsr1() 243 | { 244 | // echo 'SIGUSR1'.PHP_EOL; 245 | foreach ($this->workers as $i => $worker) { 246 | if (($payload_result = $worker->checkForFinish()) !== null) { 247 | if ($this->payloadFinishCallback !== null) 248 | call_user_func($this->payloadFinishCallback, $worker, $payload_result[0], $payload_result[1]); 249 | } 250 | } 251 | } 252 | 253 | /** 254 | * 255 | */ 256 | public function onSigUsr2() 257 | { 258 | // echo 'SIGUSR2'.PHP_EOL; 259 | foreach ($this->workers as $worker) { 260 | $worker->checkForTermination(); 261 | } 262 | } 263 | 264 | /** 265 | * 266 | */ 267 | public function onSigChld() 268 | { 269 | // echo 'SIGCHLD -> SIGUSR2'.PHP_EOL; 270 | $this->onSigUsr2(); 271 | } 272 | 273 | /** 274 | * @param bool $waitIfNeeded 275 | * @return bool 276 | * @throws Exception 277 | */ 278 | protected function checkSize($waitIfNeeded = false) 279 | { 280 | if ($this->newSize === $this->currentSize) 281 | return true; 282 | 283 | // just emit new workers 284 | if ($this->newSize > $this->currentSize) { 285 | $diff = $this->newSize - $this->currentSize; 286 | for ($i = 0; $i < $diff; $i++) { 287 | $this->emitNewWorker(); 288 | } 289 | $this->currentSize = $this->newSize; 290 | return true; 291 | } 292 | 293 | $diff = $this->currentSize - $this->newSize; 294 | $terminating = 0; 295 | $done = 0; 296 | $j = 0; 297 | // decrease worker pool 298 | while ($diff > $done) { 299 | if ($this->countIdleWorkers() > 0 || $terminating > 0) { 300 | $states = []; 301 | foreach ($this->workers as $i => $worker) { 302 | $states[$worker->getPid()] = $worker->state; 303 | if ($worker->state === Worker::IDLE) { 304 | // echo 'Stopping worker '.$i.PHP_EOL; 305 | $terminating++; 306 | $worker->stop(); 307 | } 308 | else if ($worker->state === Worker::TERMINATED) { 309 | // echo 'Terminated worker '.$i.PHP_EOL; 310 | $terminating--; 311 | $done++; 312 | unset($this->workers[$i], $this->overheadCounters[$i]); 313 | } 314 | } 315 | } 316 | 317 | if (!$waitIfNeeded) 318 | break; 319 | 320 | sleep($this->checkTime); 321 | } 322 | $this->currentSize = count($this->workers); 323 | } 324 | 325 | /** 326 | * @throws Exception 327 | */ 328 | protected function emitNewWorker() 329 | { 330 | // if worker is a class 331 | if ($this->class) { 332 | $class_name = $this->class; 333 | ($this->workers[] = new $class_name($this))->disableSelfManagement()->start(); 334 | } 335 | // if object 336 | else { 337 | $worker = clone $this->object; 338 | ($this->workers[] = $worker)->start(); 339 | } 340 | $this->overheadCounters[] = 0; 341 | } 342 | 343 | /** 344 | * @return Worker[] 345 | */ 346 | public function getWorkers() 347 | { 348 | return $this->workers; 349 | } 350 | 351 | /** 352 | * @param array $trackers 353 | */ 354 | public function waitToFinish(array $trackers = []) 355 | { 356 | // convert seconds to wait units 357 | foreach ($trackers as $tracker_time => $tracker_callback) { 358 | unset($trackers[$tracker_time]); 359 | $tracker_units = $tracker_time * 1000 / static::WAIT_UNIT_MILLITIME; 360 | $trackers[$tracker_units] = $tracker_callback; 361 | } 362 | 363 | // unit counter 364 | $i = 0; 365 | while ($this->countRunningWorkers() > 0) { 366 | $i++; 367 | 368 | foreach ($trackers as $tracker_units => $tracker_callback) { 369 | if ($i % $tracker_units === 0) { 370 | call_user_func($tracker_callback, $this); 371 | } 372 | } 373 | 374 | usleep(static::WAIT_UNIT_MILLITIME * 1000); 375 | } 376 | } 377 | 378 | /** 379 | * @return array 380 | */ 381 | public function getOverheadCounters() 382 | { 383 | return $this->overheadCounters; 384 | } 385 | 386 | /** 387 | * @return array 388 | */ 389 | public function getWorkersStates() 390 | { 391 | $state = []; 392 | foreach ($this->workers as $worker) 393 | $state[] = $worker->state; 394 | return $state; 395 | } 396 | } 397 | -------------------------------------------------------------------------------- /tests/CpuEatingWorkerTest.php: -------------------------------------------------------------------------------- 1 | start(); 26 | } catch (Exception $e) { 27 | $this->fail('Worker can not start: '.$e->getMessage()); 28 | } 29 | $this->assertEquals(Worker::IDLE, $worker->state); 30 | 31 | $payloads = [[123], [456], [789]]; 32 | foreach ($payloads as $payload) 33 | $worker->sendPayload($payload); 34 | 35 | $this->assertEquals(Worker::RUNNING, $worker->state); 36 | 37 | $payload_i = 0; 38 | while ($worker->state != Worker::IDLE) { 39 | if ($worker->state == Worker::RUNNING) { 40 | $result = $worker->checkForFinish(); 41 | if ($result !== null) { 42 | $this->assertEquals($payloads[$payload_i][0], $result); 43 | $payload_i++; 44 | } else 45 | sleep(1); 46 | } 47 | } 48 | 49 | unset($worker); 50 | } 51 | 52 | public function testParallel() 53 | { 54 | try { 55 | $pool = new WorkersPool('CpuEatingWorker'); 56 | } catch (Exception $e) { 57 | $this->fail('Workers can not start: '.$e->getMessage()); 58 | } 59 | $pool->setPoolSize(8); 60 | $pool->enableDataOverhead(); 61 | 62 | for ($i = 0; $i < 12; $i++) 63 | $pool->sendData([$i]); 64 | 65 | $this->assertEquals(8, $pool->countRunningWorkers()); 66 | $this->assertEquals(0, $pool->countIdleWorkers()); 67 | 68 | $pool->waitToFinish(); 69 | $this->assertEquals(0, $pool->countRunningWorkers()); 70 | var_dump($pool->getWorkersStates()); 71 | $this->assertEquals(8, $pool->countIdleWorkers()); 72 | 73 | unset($pool); 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /tests/WorkerTest.php: -------------------------------------------------------------------------------- 1 | start(); 23 | } catch (Exception $e) { 24 | $this->fail('Worker can not start: '.$e->getMessage()); 25 | } 26 | $this->assertEquals(Worker::IDLE, $worker->state); 27 | 28 | $sleep_time = 3; 29 | $worker->sendPayload(['timeout' => $sleep_time]); 30 | $this->assertEquals(Worker::RUNNING, $worker->state); 31 | sleep($sleep_time + 1); 32 | $this->assertEquals($sleep_time * 2, $worker->checkForFinish()); 33 | $this->assertEquals(Worker::IDLE, $worker->state); 34 | 35 | $sleep_time = 1; 36 | $worker->sendPayload(['timeout' => $sleep_time]); 37 | $this->assertEquals(Worker::RUNNING, $worker->state); 38 | sleep($sleep_time + 1); 39 | $this->assertEquals($sleep_time * 2, $worker->checkForFinish()); 40 | $this->assertEquals(Worker::IDLE, $worker->state); 41 | 42 | unset($worker); 43 | } 44 | } 45 | --------------------------------------------------------------------------------