How to use lock method of vfsStreamFile class

Best VfsStream code snippet using vfsStreamFile.lock

vfsStreamFile.php

Source:vfsStreamFile.php Github

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...27 * @type int28 */29 protected $bytes_read = 0;30 /**31 * current lock status of file32 *33 * @type int34 */35 protected $lock = LOCK_UN;36 /**37 * constructor38 *39 * @param string $name40 * @param int $permissions optional41 */42 public function __construct($name, $permissions = null)43 {44 $this->type = vfsStreamContent::TYPE_FILE;45 parent::__construct($name, $permissions);46 }47 /**48 * returns default permissions for concrete implementation49 *50 * @return int51 * @since 0.8.052 */53 protected function getDefaultPermissions()54 {55 return 0666;56 }57 /**58 * checks whether the container can be applied to given name59 *60 * @param string $name61 * @return bool62 */63 public function appliesTo($name)64 {65 return ($name === $this->name);66 }67 /**68 * alias for withContent()69 *70 * @param string $content71 * @return vfsStreamFile72 * @see withContent()73 */74 public function setContent($content)75 {76 return $this->withContent($content);77 }78 /**79 * sets the contents of the file80 *81 * Setting content with this method does not change the time when the file82 * was last modified.83 *84 * @param string $content85 * @return vfsStreamFile86 */87 public function withContent($content)88 {89 $this->content = $content;90 return $this;91 }92 /**93 * returns the contents of the file94 *95 * Getting content does not change the time when the file96 * was last accessed.97 *98 * @return string99 */100 public function getContent()101 {102 return $this->content;103 }104 /**105 * simply open the file106 *107 * @since 0.9108 */109 public function open()110 {111 $this->seek(0, SEEK_SET);112 $this->lastAccessed = time();113 }114 /**115 * open file and set pointer to end of file116 *117 * @since 0.9118 */119 public function openForAppend()120 {121 $this->seek(0, SEEK_END);122 $this->lastAccessed = time();123 }124 /**125 * open file and truncate content126 *127 * @since 0.9128 */129 public function openWithTruncate()130 {131 $this->open();132 $this->content = '';133 $time = time();134 $this->lastAccessed = $time;135 $this->lastModified = $time;136 }137 /**138 * reads the given amount of bytes from content139 *140 * Using this method changes the time when the file was last accessed.141 *142 * @param int $count143 * @return string144 */145 public function read($count)146 {147 $data = substr($this->content, $this->bytes_read, $count);148 $this->bytes_read += $count;149 $this->lastAccessed = time();150 return $data;151 }152 /**153 * returns the content until its end from current offset154 *155 * Using this method changes the time when the file was last accessed.156 *157 * @return string158 */159 public function readUntilEnd()160 {161 $this->lastAccessed = time();162 return substr($this->content, $this->bytes_read);163 }164 /**165 * writes an amount of data166 *167 * Using this method changes the time when the file was last modified.168 *169 * @param string $data170 * @return amount of written bytes171 */172 public function write($data)173 {174 $dataLen = strlen($data);175 $this->content = substr($this->content, 0, $this->bytes_read) . $data . substr($this->content, $this->bytes_read + $dataLen);176 $this->bytes_read += $dataLen;177 $this->lastModified = time();178 return $dataLen;179 }180 /**181 * Truncates a file to a given length182 *183 * @param int $size length to truncate file to184 * @return bool185 * @since 1.1.0186 */187 public function truncate($size) {188 if ($size > $this->size()) {189 // Pad with null-chars if we're "truncating up"190 $this->setContent($this->getContent() . str_repeat("\0", $size - $this->size()));191 } else {192 $this->setContent(substr($this->getContent(), 0, $size));193 }194 $this->lastModified = time();195 return true;196 }197 /**198 * checks whether pointer is at end of file199 *200 * @return bool201 */202 public function eof()203 {204 return $this->bytes_read >= strlen($this->content);205 }206 /**207 * returns the current position within the file208 *209 * @return int210 */211 public function getBytesRead()212 {213 return $this->bytes_read;214 }215 /**216 * seeks to the given offset217 *218 * @param int $offset219 * @param int $whence220 * @return bool221 */222 public function seek($offset, $whence)223 {224 switch ($whence) {225 case SEEK_CUR:226 $this->bytes_read += $offset;227 return true;228 case SEEK_END:229 $this->bytes_read = strlen($this->content) + $offset;230 return true;231 case SEEK_SET:232 $this->bytes_read = $offset;233 return true;234 default:235 return false;236 }237 return false;238 }239 /**240 * returns size of content241 *242 * @return int243 */244 public function size()245 {246 return strlen($this->content);247 }248 /**249 * locks file for250 *251 * @param int $operation252 * @return vfsStreamFile253 * @since 0.10.0254 * @see https://github.com/mikey179/vfsStream/issues/6255 */256 public function lock($operation)257 {258 if ((LOCK_NB & $operation) == LOCK_NB) {259 $this->lock = $operation - LOCK_NB;260 } else {261 $this->lock = $operation;262 }263 return $this;264 }265 /**266 * checks whether file is locked267 *268 * @return bool269 * @since 0.10.0270 * @see https://github.com/mikey179/vfsStream/issues/6271 */272 public function isLocked()273 {274 return (LOCK_UN !== $this->lock);275 }276 /**277 * checks whether file is locked in shared mode278 *279 * @return bool280 * @since 0.10.0281 * @see https://github.com/mikey179/vfsStream/issues/6282 */283 public function hasSharedLock()284 {285 return (LOCK_SH === $this->lock);286 }287 /**288 * checks whether file is locked in exclusive mode289 *290 * @return bool291 * @since 0.10.0292 * @see https://github.com/mikey179/vfsStream/issues/6293 */294 public function hasExclusiveLock()295 {296 return (LOCK_EX === $this->lock);297 }298}299?>...

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FileLockStorageTest.php

Source:FileLockStorageTest.php Github

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...31 }32 public function testSave()33 {34 $this->assertTrue($this->storage->save('test', 300));35 $this->assertTrue($this->root->hasChild('test.lock'));36 $this->assertLessThanOrEqual(time() + 300, $this->root->getChild('test.lock')->getContent());37 }38 public function testSaveClassKey()39 {40 $this->assertTrue($this->storage->save('AppBundle\\TestClass', 300));41 $this->assertTrue($this->root->hasChild('AppBundle_TestClass.lock'));42 $this->assertLessThanOrEqual(time() + 300, $this->root->getChild('AppBundle_TestClass.lock')->getContent());43 }44 public function testDelete()45 {46 $child = new vfsStreamFile('test.lock');47 $child->setContent((string) (time() + 300));48 $this->root->addChild($child);49 $this->assertTrue($this->storage->delete('test'));50 $this->assertFalse($this->root->hasChild('test.lock'));51 }52 public function testDeleteClassKey()53 {54 $child = new vfsStreamFile('AppBundle_TestClass.lock');55 $child->setContent((string) (time() + 300));56 $this->root->addChild($child);57 $this->assertTrue($this->storage->delete('AppBundle\\TestClass'));58 $this->assertFalse($this->root->hasChild('AppBundle_TestClass.lock'));59 }60 public function testDeleteNotExists()61 {62 $child = new vfsStreamFile('test2.lock');63 $child->setContent((string) (time() + 300));64 $this->root->addChild($child);65 // no exception should be thrown and other lock should not be deleted66 $this->assertTrue($this->storage->delete('test'));67 $this->assertTrue($this->root->hasChild('test2.lock'));68 }69 public function testExists()70 {71 $child = new vfsStreamFile('test.lock');72 $child->setContent((string) (time() + 300));73 $this->root->addChild($child);74 $this->assertTrue($this->storage->exists('test'));75 }76 public function testExistsClassKey()77 {78 $child = new vfsStreamFile('AppBundle_TestClass.lock');79 $child->setContent((string) (time() + 300));80 $this->root->addChild($child);81 $this->assertTrue($this->storage->exists('AppBundle\\TestClass'));82 }83 public function testExistsNotExists()84 {85 $this->assertFalse($this->storage->exists('test'));86 }87 public function testExistsEndOfLive()88 {89 $child = new vfsStreamFile('test.lock');90 $child->setContent((string) (time() - 10));91 $this->root->addChild($child);92 $this->assertFalse($this->storage->exists('test'));93 }94}...

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1require_once 'vfsStream/vfsStream.php';2require_once 'vfsStream/vfsStreamFile.php';3require_once 'vfsStream/vfsStreamWrapper.php';4require_once 'vfsStream/vfsStreamDirectory.php';5require_once 'vfsStream/vfsStreamContainer.php';6require_once 'vfsStream/vfsStreamAbstractContent.php';7require_once 'vfsStream/vfsStreamContent.php';8require_once 'vfsStream/vfsStreamBlock.php';9require_once 'vfsStream/vfsStreamException.php';10vfsStreamWrapper::register();11vfsStreamWrapper::setRoot(new vfsStreamDirectory('test'));12$file = vfsStream::newFile('file.txt')->at(vfsStreamWrapper::getRoot());13fwrite($fp, 'Hello World');14fclose($fp);15$file->lock();16fwrite($fp, 'Hello World');17fclose($fp);18Warning: fwrite() [function.fwrite]: cannot write to a locked file in /home/username/public_html/vfsStream/2.php on line 3019Warning: fclose() [function.fclose]: cannot close a locked file in /home/username/public_html/vfsStream/2.php on line 31

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1$root = vfsStream::setup('root');2$dir = vfsStream::newDirectory('dir');3$root->addChild($dir);4$file = vfsStream::newFile('file.txt');5$root->addChild($file);6$file->lock();7$file->unlock();8$file->chown(1000);9$file->chgrp(1000);10$file->chmod(0777);11$file->touch(1000);12$file->at(1000);13$file->lastAccessed(1000);14$file->lastModified(1000);15$file->size(1000);16$file->copyContentTo('somefile');17$file->getContent();18$file->setContent('some content');19$file->truncate(1000);20$file->hasChild('somefile');21$file->getChild('somefile');22$file->removeChild('somefile');23$file->removeChildren();24$file->getChildren();25$file->getChildNames();26$file->hasChildren();27$file->isFile();28$file->isLink();29$file->isDir();30$file->getPermissions();31$file->getOwner();32$file->getGroup();33$file->getLinkTarget();34$file->setLinkTarget('somefile');35$file->at(1000);36$file->lastAccessed(1000);37$file->lastModified(1000);38$file->size(1000);39$file->copyContentTo('somefile');40$file->getContent();41$file->setContent('some content');42$file->truncate(1000);43$file->hasChild('somefile');44$file->getChild('somefile');45$file->removeChild('somefile');46$file->removeChildren();47$file->getChildren();48$file->getChildNames();49$file->hasChildren();50$file->isFile();51$file->isLink();52$file->isDir();53$file->getPermissions();54$file->getOwner();55$file->getGroup();56$file->getLinkTarget();57$file->setLinkTarget('somefile');58$file->at(1000);59$file->lastAccessed(1000);60$file->lastModified(1000);61$file->size(1000);62$file->copyContentTo('somefile');63$file->getContent();64$file->setContent('some content');65$file->truncate(1000);66$file->hasChild('somefile');67$file->getChild('somefile');68$file->removeChild('somefile');69$file->removeChildren();70$file->getChildren();71$file->getChildNames();72$file->hasChildren();73$file->isFile();74$file->isLink();75$file->isDir();76$file->getPermissions();

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1$root = vfsStream::setup();2$root->addChild(vfsStream::newFile('test.txt'));3$root->getChild('test.txt')->lock();4$root->getChild('test.txt')->unlock();5$root = vfsStream::setup();6$root->addChild(vfsStream::newFile('test.txt'));7$root->getChild('test.txt')->lock();8var_dump($root->getChild('test.txt')->isLocked());9$root = vfsStream::setup();10$root->addChild(vfsStream::newDirectory('test'));11var_dump($root->hasChild('test'));12$root = vfsStream::setup();13$root->addChild(vfsStream::newDirectory('test'));14var_dump($root->getChild('test'));15$root = vfsStream::setup();16$root->addChild(vfsStream::newDirectory('test'));17$root->removeChild('test');18var_dump($root->hasChild('test'));19$root = vfsStream::setup();20$root->addChild(vfsStream::newDirectory('test'));21var_dump($root->hasChildren());22$root = vfsStream::setup();23$root->addChild(vfsStream::newDirectory('test'));24var_dump($root->getChildren());25$root = vfsStream::setup();26$root->addChild(vfsStream::newDirectory('test'));27var_dump($root->getURL());28$root = vfsStream::setup();29$root->addChild(vfsStream::newDirectory('test'));30var_dump(vfsStreamWrapper::getRoot());31$root = vfsStream::setup();32$root->addChild(vfsStream

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1$lock = $root->getChild('test.txt')->lock();2$lock->unlock();3$lock = $root->getChild('test.txt')->lock();4$lock->unlock();5$lock = $root->getChild('test.txt')->lock();6$lock->unlock();7$lock = $root->getChild('test.txt')->lock();8$lock->unlock();9$lock = $root->getChild('test.txt')->lock();10$lock->unlock();11$lock = $root->getChild('test.txt')->lock();12$lock->unlock();13$lock = $root->getChild('test.txt')->lock();14$lock->unlock();15$lock = $root->getChild('test.txt')->lock();16$lock->unlock();17$lock = $root->getChild('test.txt')->lock();18$lock->unlock();19$lock = $root->getChild('test.txt')->lock();20$lock->unlock();21$lock = $root->getChild('

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1$root = vfsStream::setup('exampleDir');2$exampleFile = new vfsStreamFile('exampleFile');3$root->addChild($exampleFile);4$exampleFile->lock(vfsStream::LOCK_EXCLUSIVE);5$root = vfsStream::setup('exampleDir');6$exampleFile = new vfsStreamFile('exampleFile');7$root->addChild($exampleFile);8$exampleFile->unlock();9$root = vfsStream::setup('exampleDir');10$exampleFile = new vfsStreamFile('exampleFile');11$root->addChild($exampleFile);12$exampleFile->touch();13$root = vfsStream::setup('exampleDir');14$exampleFile = new vfsStreamFile('exampleFile');15$root->addChild($exampleFile);16$exampleFile->chgrp(1000);17$root = vfsStream::setup('exampleDir');18$exampleFile = new vfsStreamFile('exampleFile');19$root->addChild($exampleFile);20$exampleFile->chown(1000);21$root = vfsStream::setup('exampleDir');22$exampleFile = new vfsStreamFile('exampleFile');23$root->addChild($exampleFile);24$exampleFile->chmod(0777);25$root = vfsStream::setup('exampleDir');26$exampleFile = new vfsStreamFile('exampleFile');27$root->addChild($exampleFile);28$exampleFile->lchgrp(1000);29$root = vfsStream::setup('exampleDir');30$exampleFile = new vfsStreamFile('exampleFile');31$root->addChild($exampleFile);32$exampleFile->lchown(1000);33$root = vfsStream::setup('exampleDir');

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1require_once 'vfsStream/vfsStream.php';2vfsStreamWrapper::register();3vfsStreamWrapper::setRoot(new vfsStreamDirectory('testDir'));4vfsStreamWrapper::getRoot()->addChild(new vfsStreamFile('testFile'));5$file = vfsStreamWrapper::getRoot()->getChild('testFile');6$file->lock();7$file->lock();8Warning: vfsStreamFile::lock() [vfsstreamfile.lock]: file already locked in D:\xampp\htdocs\2.php on line 169Warning: vfsStreamFile::lock() [vfsstreamfile.lock]: file already locked in D:\xampp\htdocs\2.php on line 1610void unlock()11require_once 'vfsStream/vfsStream.php';12vfsStreamWrapper::register();13vfsStreamWrapper::setRoot(new vfsStreamDirectory('testDir'));14vfsStreamWrapper::getRoot()->addChild(new vfsStreamFile('testFile'));15$file = vfsStreamWrapper::getRoot()->getChild('testFile');16$file->lock();17$file->unlock();18Related Posts: vfsStream - vfsStreamFile::truncate() Method19vfsStream - vfsStreamFile::ftruncate() Method20vfsStream - vfsStreamFile::fstat() Method21vfsStream - vfsStreamFile::fseek() Method22vfsStream - vfsStreamFile::fread() Method23vfsStream - vfsStreamFile::fwrite() Method24vfsStream - vfsStreamFile::fflush() Method25vfsStream - vfsStreamFile::flock() Method26vfsStream - vfsStreamFile::fgetc() Method27vfsStream - vfsStreamFile::fgets() Method28vfsStream - vfsStreamFile::fgetcsv() Method

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1$dir = vfsStream::setup('exampleDir');2$file = vfsStream::newFile('exampleFile.txt')->at($dir);3$file->lock();4$file->unlock();5vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();6vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();7vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();8vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();9vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();10vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();11vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();12vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();13vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();14vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();15vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();16vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();17vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();18vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();19vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();20vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();21vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->lock();22vfsStreamWrapper::getRoot()->getChild('exampleDir/exampleFile.txt')->unlock();

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1$lock = $root->getChild('example.txt')->lock();2$lock->lock(LOCK_EX);3$lock->lock(LOCK_UN);4$lock->lock(LOCK_UN);5$lock = $root->getChild('example.txt')->unlock();6$lock->unlock();7$lock = $root->getChild('example.txt')->unlock();8$lock->unlock();9$lock = $root->getChild('example.txt')->unlock();10$lock->unlock();11$lock = $root->getChild('example.txt')->unlock();12$lock->unlock();13$lock = $root->getChild('example.txt')->unlock();14$lock->unlock();15$lock = $root->getChild('example.txt')->unlock();16$lock->unlock();17$lock = $root->getChild('example.txt')->unlock();18$lock->unlock();19$lock = $root->getChild('example.txt')->unlock();20$lock->unlock();21$lock = $root->getChild('example.txt')->unlock();22$lock->unlock();23$lock = $root->getChild('example.txt')->unlock();24$lock->unlock();25$lock = $root->getChild('example.txt')->unlock();26$lock->unlock();27$lock = $root->getChild('example.txt')->unlock();28$lock->unlock();

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1$myFile = vfsStream::url('root/myFile.txt');2$fp = fopen($myFile, 'r+');3if($fp){4 if(flock($fp, LOCK_EX)){5 fwrite($fp, "some data");6 flock($fp, LOCK_UN);7 }8 fclose($fp);9}10$myFile = vfsStream::url('root/myFile.txt');11$fp = fopen($myFile, 'r+');12if($fp){13 if(vfsStreamWrapper::lock($fp, LOCK_EX)){14 fwrite($fp, "some data");15 vfsStreamWrapper::lock($fp, LOCK_UN);16 }17 fclose($fp);18}19$myFile = vfsStream::url('root/myFile.txt');20$fp = fopen($myFile, 'r+');21if($fp){22 $content = vfsStream::newContent('some data');23 if($content->lock($fp, LOCK_EX)){24 fwrite($fp, "some data");25 $content->lock($fp, LOCK_UN);26 }27 fclose($fp);28}29$myFile = vfsStream::url('root/myFile.txt');30$fp = fopen($myFile, 'r+');31if($fp){32 $root = vfsStreamWrapper::getRoot();33 if($root->lock($fp, LOCK_EX)){34 fwrite($fp, "some data");35 $root->lock($fp, LOCK_UN);36 }37 fclose($fp);38}39$myFile = vfsStream::url('root/myFile.txt');40$fp = fopen($myFile, 'r+');41if($fp){42 $root = vfsStreamWrapper::getRoot();43 if($root->lock($fp, LOCK_EX)){44 fwrite($fp, "some data");45 $root->lock($fp, LOCK_UN);46 }47 fclose($fp);48}49$myFile = vfsStream::url('root/myFile.txt');50$fp = fopen($myFile

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