本文整理汇总了PHP中Zend_Search_Lucene_LockManager::escalateReadLock方法的典型用法代码示例。如果您正苦于以下问题：PHP Zend_Search_Lucene_LockManager::escalateReadLock方法的具体用法？PHP Zend_Search_Lucene_LockManager::escalateReadLock怎么用？PHP Zend_Search_Lucene_LockManager::escalateReadLock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Zend_Search_Lucene_LockManager的用法示例。
在下文中一共展示了Zend_Search_Lucene_LockManager::escalateReadLock方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: _updateSegments
//.........这里部分代码省略.........
$newSegmentFile->writeInt((int) 0xffffffff);
}
// HasSingleNormFile
$newSegmentFile->writeByte($segmentInfo->hasSingleNormFile());
// NumField
$newSegmentFile->writeInt((int) 0xffffffff);
// IsCompoundFile
$newSegmentFile->writeByte($segmentInfo->isCompound() ? 1 : -1);
$segments[$segmentInfo->getName()] = $segmentInfo->count();
$this->_segmentInfos[$segName] = $segmentInfo;
}
$this->_newSegments = array();
$newSegmentFile->seek($numOfSegmentsOffset);
$newSegmentFile->writeInt($segmentsCount);
// Update segments count
$newSegmentFile->close();
} catch (Exception $e) {
/** Restore previous index generation */
$generation--;
$genFile->seek(4, SEEK_SET);
// Write generation number twice
$genFile->writeLong($generation);
$genFile->writeLong($generation);
// Release index write lock
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
// Throw the exception
require_once 'Zend/Search/Lucene/Exception.php';
throw new Zend_Search_Lucene_Exception($e->getMessage(), $e->getCode(), $e);
}
// Write generation (second copy)
$genFile->writeLong($generation);
// Check if another update or read process is not running now
// If yes, skip clean-up procedure
if (Zend_Search_Lucene_LockManager::escalateReadLock($this->_directory)) {
/**
* Clean-up directory
*/
$filesToDelete = array();
$filesTypes = array();
$filesNumbers = array();
// list of .del files of currently used segments
// each segment can have several generations of .del files
// only last should not be deleted
$delFiles = array();
foreach ($this->_directory->fileList() as $file) {
if ($file == 'deletable') {
// 'deletable' file
$filesToDelete[] = $file;
$filesTypes[] = 0;
// delete this file first, since it's not used starting from Lucene v2.1
$filesNumbers[] = 0;
} else {
if ($file == 'segments') {
// 'segments' file
$filesToDelete[] = $file;
$filesTypes[] = 1;
// second file to be deleted "zero" version of segments file (Lucene pre-2.1)
$filesNumbers[] = 0;
} else {
if (preg_match('/^segments_[a-zA-Z0-9]+$/i', $file)) {
// 'segments_xxx' file
// Check if it's not a just created generation file
if ($file != Zend_Search_Lucene::getSegmentFileName($generation)) {
$filesToDelete[] = $file;
$filesTypes[] = 2;
// first group of files for deletions示例2: __construct
/**
* Opens the index.
*
* IndexReader constructor needs Directory as a parameter. It should be
* a string with a path to the index folder or a Directory object.
*
* @param mixed $directory
* @throws Zend_Search_Lucene_Exception
*/
public function __construct($directory = null, $create = false)
{
if ($directory === null) {
throw new Zend_Search_Exception('No index directory specified');
}
if ($directory instanceof Zend_Search_Lucene_Storage_Directory_Filesystem) {
$this->_directory = $directory;
$this->_closeDirOnExit = false;
} else {
$this->_directory = new Zend_Search_Lucene_Storage_Directory_Filesystem($directory);
$this->_closeDirOnExit = true;
}
$this->_segmentInfos = array();
// Mark index as "under processing" to prevent other processes from premature index cleaning
Zend_Search_Lucene_LockManager::obtainReadLock($this->_directory);
// Escalate read lock to prevent current generation index files to be deleted while opening process is not done
Zend_Search_Lucene_LockManager::escalateReadLock($this->_directory);
$this->_generation = self::getActualGeneration($this->_directory);
if ($create) {
try {
Zend_Search_Lucene_LockManager::obtainWriteLock($this->_directory);
} catch (Zend_Search_Lucene_Exception $e) {
if (strpos($e->getMessage(), 'Can\'t obtain exclusive index lock') === false) {
throw $e;
} else {
throw new Zend_Search_Lucene_Exception('Can\'t create index. It\'s under processing now');
}
}
if ($this->_generation == -1) {
// Directory doesn't contain existing index, start from 1
$this->_generation = 1;
$nameCounter = 0;
} else {
// Directory contains existing index
$segmentsFile = $this->_directory->getFileObject(self::getSegmentFileName($this->_generation));
$segmentsFile->seek(12);
// 12 = 4 (int, file format marker) + 8 (long, index version)
$nameCounter = $segmentsFile->readInt();
$this->_generation++;
}
Zend_Search_Lucene_Index_Writer::createIndex($this->_directory, $this->_generation, $nameCounter);
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
}
if ($this->_generation == -1) {
throw new Zend_Search_Lucene_Exception('Index doesn\'t exists in the specified directory.');
} else {
if ($this->_generation == 0) {
$this->_readPre21SegmentsFile();
} else {
$this->_readSegmentsFile();
}
}
// De-escalate read lock to prevent current generation index files to be deleted while opening process is not done
Zend_Search_Lucene_LockManager::deEscalateReadLock($this->_directory);
}示例3: _updateSegments
//.........这里部分代码省略.........
// NumField
$newSegmentFile->writeInt((int)0xFFFFFFFF);
// IsCompoundFile
$newSegmentFile->writeByte($segmentInfo->isCompound());
$segments[$segmentInfo->getName()] = $segmentInfo->count();
$this->_segmentInfos[$segName] = $segmentInfo;
}
$this->_newSegments = array();
$newSegmentFile->seek($numOfSegmentsOffset);
$newSegmentFile->writeInt($segmentsCount); // Update segments count
$newSegmentFile->close();
} catch (Exception $e) {
/** Restore previous index generation */
$generation--;
$genFile->seek(4, SEEK_SET);
// Write generation number twice
$genFile->writeLong($generation); $genFile->writeLong($generation);
// Release index write lock
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
// Throw the exception
throw $e;
}
// Write generation (second copy)
$genFile->writeLong($generation);
// Check if another update process is not running now
// If yes, skip clean-up procedure
if (Zend_Search_Lucene_LockManager::escalateReadLock($this->_directory)) {
/**
* Clean-up directory
*/
$filesToDelete = array();
$filesTypes = array();
$filesNumbers = array();
// list of .del files of currently used segments
// each segment can have several generations of .del files
// only last should not be deleted
$delFiles = array();
foreach ($this->_directory->fileList() as $file) {
if ($file == 'deletable') {
// 'deletable' file
$filesToDelete[] = $file;
$filesTypes[] = 0; // delete this file first, since it's not used starting from Lucene v2.1
$filesNumbers[] = 0;
} else if ($file == 'segments') {
// 'segments' file
$filesToDelete[] = $file;
$filesTypes[] = 1; // second file to be deleted "zero" version of segments file (Lucene pre-2.1)
$filesNumbers[] = 0;
} else if (preg_match('/^segments_[a-zA-Z0-9]+$/i', $file)) {
// 'segments_xxx' file
// Check if it's not a just created generation file
if ($file != Zend_Search_Lucene::getSegmentFileName($generation)) {
$filesToDelete[] = $file;
$filesTypes[] = 2; // first group of files for deletions
$filesNumbers[] = (int)base_convert(substr($file, 9), 36, 10); // ordered by segment generation numbers
}示例4: _updateSegments
//.........这里部分代码省略.........
$newSegmentFile->writeByte($isCompoundByte);
$segments[$segName] = $segSize;
}
}
$segmentsFile->close();
$segmentsCount = count($segments) + count($this->_newSegments);
foreach ($this->_newSegments as $segName => $segmentInfo) {
$newSegmentFile->writeString($segName);
$newSegmentFile->writeInt($segmentInfo->count());
$newSegmentFile->writeInt((int) 0xffffffff);
$newSegmentFile->writeInt((int) 0xffffffff);
if ($this->_targetFormatVersion == Zend_Search_Lucene::FORMAT_2_3) {
$newSegmentFile->writeInt((int) 0xffffffff);
}
$newSegmentFile->writeByte($segmentInfo->hasSingleNormFile());
$newSegmentFile->writeInt((int) 0xffffffff);
$newSegmentFile->writeByte($segmentInfo->isCompound() ? 1 : -1);
$segments[$segmentInfo->getName()] = $segmentInfo->count();
$this->_segmentInfos[$segName] = $segmentInfo;
}
$this->_newSegments = array();
$newSegmentFile->seek($numOfSegmentsOffset);
$newSegmentFile->writeInt($segmentsCount);
$newSegmentFile->close();
} catch (Exception $e) {
$generation--;
$genFile->seek(4, SEEK_SET);
$genFile->writeLong($generation);
$genFile->writeLong($generation);
Zend_Search_Lucene_LockManager::releaseWriteLock($this->_directory);
throw new Zend_Search_Lucene_Exception($e->getMessage(), $e->getCode(), $e);
}
$genFile->writeLong($generation);
if (Zend_Search_Lucene_LockManager::escalateReadLock($this->_directory)) {
$filesToDelete = array();
$filesTypes = array();
$filesNumbers = array();
$delFiles = array();
foreach ($this->_directory->fileList() as $file) {
if ($file == 'deletable') {
$filesToDelete[] = $file;
$filesTypes[] = 0;
$filesNumbers[] = 0;
} else {
if ($file == 'segments') {
$filesToDelete[] = $file;
$filesTypes[] = 1;
$filesNumbers[] = 0;
} else {
if (preg_match('/^segments_[a-zA-Z0-9]+$/i', $file)) {
if ($file != Zend_Search_Lucene::getSegmentFileName($generation)) {
$filesToDelete[] = $file;
$filesTypes[] = 2;
$filesNumbers[] = (int) base_convert(substr($file, 9), 36, 10);
}
} else {
if (preg_match('/(^_([a-zA-Z0-9]+))\\.f\\d+$/i', $file, $matches)) {
if (!isset($segments[$matches[1]])) {
$filesToDelete[] = $file;
$filesTypes[] = 3;
$filesNumbers[] = (int) base_convert($matches[2], 36, 10);
}
} else {
if (preg_match('/(^_([a-zA-Z0-9]+))(_([a-zA-Z0-9]+))\\.del$/i', $file, $matches)) {
if (!isset($segments[$matches[1]])) {
$filesToDelete[] = $file;