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xdxf.cc
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/* This file is (c) 2008-2009 Konstantin Isakov <[email protected]>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "xdxf.hh"
#include "btreeidx.hh"
#include "folding.hh"
#include "utf8.hh"
#include "chunkedstorage.hh"
#include "dictzip.h"
#include "htmlescape.hh"
#include "fsencoding.hh"
#include <map>
#include <set>
#include <string>
#include <vector>
#include <list>
#include <wctype.h>
#include <stdlib.h>
#include "gddebug.hh"
#include "wstring_qt.hh"
#include "xdxf2html.hh"
#include "ufile.hh"
#include "dictzip.h"
#include "langcoder.hh"
#include "indexedzip.hh"
#include "filetype.hh"
#include "tiff.hh"
#include "ftshelpers.hh"
#ifdef _MSC_VER
#include <stub_msvc.h>
#endif
#include <QIODevice>
#include <QXmlStreamReader>
#include <QTextDocument>
#include <QFileInfo>
#include <QDir>
#include <QPainter>
#include <QDebug>
#include <QRegExp>
#include <QSemaphore>
#include <QThreadPool>
#include <QAtomicInt>
#include "qt4x5.hh"
namespace Xdxf {
using std::map;
using std::multimap;
using std::pair;
using std::set;
using std::string;
using gd::wstring;
using std::vector;
using std::list;
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
using BtreeIndexing::IndexInfo;
namespace {
DEF_EX_STR( exCantReadFile, "Can't read file", Dictionary::Ex )
DEF_EX_STR( exNotXdxfFile, "The file is not an XDXF file:", Dictionary::Ex )
DEF_EX( exCorruptedIndex, "The index file is corrupted", Dictionary::Ex )
DEF_EX_STR( exDictzipError, "DICTZIP error", Dictionary::Ex )
enum
{
Signature = 0x46584458, // XDXF on little-endian, FXDX on big-endian
CurrentFormatVersion = 5 + BtreeIndexing::FormatVersion + Folding::Version
};
enum ArticleFormat
{
Default = 0,
Visual = 1,
Logical = 2
};
struct IdxHeader
{
uint32_t signature; // First comes the signature, XDXF
uint32_t formatVersion; // File format version (CurrentFormatVersion)
uint32_t articleFormat; // ArticleFormat value, except that 0 = bad file
uint32_t langFrom; // Source language
uint32_t langTo; // Target language
uint32_t articleCount; // Total number of articles
uint32_t wordCount; // Total number of words
uint32_t nameAddress; // Address of an utf8 name string, in chunks
uint32_t nameSize; // And its size
uint32_t descriptionAddress; // Address of an utf8 description string, in chunks
uint32_t descriptionSize; // And its size
uint32_t hasAbrv; // Non-zero means file has abrvs at abrvAddress
uint32_t abrvAddress; // Address of abrv map in the chunked storage
uint32_t chunksOffset; // The offset to chunks' storage
uint32_t indexBtreeMaxElements; // Two fields from IndexInfo
uint32_t indexRootOffset;
uint32_t hasZipFile; // Non-zero means there's a zip file with resources
// present
uint32_t zipIndexBtreeMaxElements; // Two fields from IndexInfo of the zip
// resource index.
uint32_t zipIndexRootOffset;
uint32_t revisionNumber; // Format revision
}
#ifndef _MSC_VER
__attribute__((packed))
#endif
;
bool indexIsOldOrBad( string const & indexFile )
{
File::Class idx( indexFile, "rb" );
IdxHeader header;
return idx.readRecords( &header, sizeof( header ), 1 ) != 1 ||
header.signature != Signature ||
header.formatVersion != CurrentFormatVersion ||
!header.articleFormat;
}
class XdxfDictionary: public BtreeIndexing::BtreeDictionary
{
Mutex idxMutex;
File::Class idx;
IdxHeader idxHeader;
sptr< ChunkedStorage::Reader > chunks;
Mutex dzMutex;
dictData * dz;
Mutex resourceZipMutex;
IndexedZip resourceZip;
string dictionaryName;
map< string, string > abrv;
public:
XdxfDictionary( string const & id, string const & indexFile,
vector< string > const & dictionaryFiles );
~XdxfDictionary();
virtual string getName() throw()
{ return dictionaryName; }
virtual map< Dictionary::Property, string > getProperties() throw()
{ return map< Dictionary::Property, string >(); }
virtual unsigned long getArticleCount() throw()
{ return idxHeader.articleCount; }
virtual unsigned long getWordCount() throw()
{ return idxHeader.wordCount; }
inline virtual quint32 getLangFrom() const
{ return idxHeader.langFrom; }
inline virtual quint32 getLangTo() const
{ return idxHeader.langTo; }
virtual sptr< Dictionary::DataRequest > getArticle( wstring const &,
vector< wstring > const & alts,
wstring const & )
throw( std::exception );
virtual sptr< Dictionary::DataRequest > getResource( string const & name )
throw( std::exception );
virtual QString const& getDescription();
virtual QString getMainFilename();
virtual sptr< Dictionary::DataRequest > getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults );
virtual void getArticleText( uint32_t articleAddress, QString & headword, QString & text );
virtual void makeFTSIndex(QAtomicInt & isCancelled, bool firstIteration );
virtual void setFTSParameters( Config::FullTextSearch const & fts )
{
can_FTS = fts.enabled
&& !fts.disabledTypes.contains( "XDXF", Qt::CaseInsensitive )
&& ( fts.maxDictionarySize == 0 || getArticleCount() <= fts.maxDictionarySize );
}
virtual uint32_t getFtsIndexVersion()
{ return 1; }
protected:
void loadIcon() throw();
private:
// Loads the article, storing its headword and formatting article's data into an html.
void loadArticle( uint32_t address,
string & articleText, QString * headword = 0 );
friend class XdxfArticleRequest;
friend class XdxfResourceRequest;
};
XdxfDictionary::XdxfDictionary( string const & id,
string const & indexFile,
vector< string > const & dictionaryFiles ):
BtreeDictionary( id, dictionaryFiles ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() )
{
// Read the dictionary name
chunks = new ChunkedStorage::Reader( idx, idxHeader.chunksOffset );
if ( idxHeader.nameSize )
{
vector< char > chunk;
dictionaryName = string( chunks->getBlock( idxHeader.nameAddress, chunk ),
idxHeader.nameSize );
}
// Open the file
DZ_ERRORS error;
dz = dict_data_open( dictionaryFiles[ 0 ].c_str(), &error, 0 );
if ( !dz )
throw exDictzipError( string( dz_error_str( error ) )
+ "(" + dictionaryFiles[ 0 ] + ")" );
// Read the abrv, if any
if ( idxHeader.hasAbrv )
{
vector< char > chunk;
char * abrvBlock = chunks->getBlock( idxHeader.abrvAddress, chunk );
uint32_t total;
memcpy( &total, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
while( total-- )
{
uint32_t keySz;
memcpy( &keySz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
char * key = abrvBlock;
abrvBlock += keySz;
uint32_t valueSz;
memcpy( &valueSz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
abrv[ string( key, keySz ) ] = string( abrvBlock, valueSz );
abrvBlock += valueSz;
}
// Open a resource zip file, if there's one
if ( idxHeader.hasZipFile &&
( idxHeader.zipIndexBtreeMaxElements ||
idxHeader.zipIndexRootOffset ) )
{
resourceZip.openIndex( IndexInfo( idxHeader.zipIndexBtreeMaxElements,
idxHeader.zipIndexRootOffset ),
idx, idxMutex );
QString zipName = QDir::fromNativeSeparators(
FsEncoding::decode( getDictionaryFilenames().back().c_str() ) );
if ( zipName.endsWith( ".zip", Qt::CaseInsensitive ) ) // Sanity check
resourceZip.openZipFile( zipName );
}
}
// Initialize the index
openIndex( IndexInfo( idxHeader.indexBtreeMaxElements,
idxHeader.indexRootOffset ),
idx, idxMutex );
// Full-text search parameters
can_FTS = true;
ftsIdxName = indexFile + "_FTS";
if( !Dictionary::needToRebuildIndex( dictionaryFiles, ftsIdxName )
&& !FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) )
FTS_index_completed.ref();
}
XdxfDictionary::~XdxfDictionary()
{
if ( dz )
dict_data_close( dz );
}
void XdxfDictionary::loadIcon() throw()
{
if ( dictionaryIconLoaded )
return;
QString fileName =
QDir::fromNativeSeparators( FsEncoding::decode( getDictionaryFilenames()[ 0 ].c_str() ) );
QFileInfo baseInfo( fileName );
fileName = baseInfo.absoluteDir().absoluteFilePath( "icon32.png" );
QFileInfo info( fileName );
if( !info.isFile() )
{
fileName = baseInfo.absoluteDir().absoluteFilePath( "icon16.png" );
info = QFileInfo( fileName );
}
if ( info.isFile() )
loadIconFromFile( fileName, true );
if ( dictionaryIcon.isNull() )
{
// Load failed -- use default icons
dictionaryIcon = QIcon(":/icons/icon32_xdxf.png");
dictionaryNativeIcon = QIcon(":/icons/icon32_xdxf.png");
}
dictionaryIconLoaded = true;
}
QString const& XdxfDictionary::getDescription()
{
if( !dictionaryDescription.isEmpty() )
return dictionaryDescription;
if( idxHeader.descriptionAddress == 0 )
dictionaryDescription = "NONE";
else
{
try
{
vector< char > chunk;
char * descr;
{
Mutex::Lock _( idxMutex );
descr = chunks->getBlock( idxHeader.descriptionAddress, chunk );
}
dictionaryDescription = QString::fromUtf8( descr, idxHeader.descriptionSize );
}
catch(...)
{
}
}
return dictionaryDescription;
}
QString XdxfDictionary::getMainFilename()
{
return FsEncoding::decode( getDictionaryFilenames()[ 0 ].c_str() );
}
void XdxfDictionary::makeFTSIndex( QAtomicInt & isCancelled, bool firstIteration )
{
if( !( Dictionary::needToRebuildIndex( getDictionaryFilenames(), ftsIdxName )
|| FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) ) )
FTS_index_completed.ref();
if( haveFTSIndex() )
return;
if( ensureInitDone().size() )
return;
if( firstIteration && getArticleCount() > FTS::MaxDictionarySizeForFastSearch )
return;
gdDebug( "Xdxf: Building the full-text index for dictionary: %s\n",
getName().c_str() );
try
{
FtsHelpers::makeFTSIndex( this, isCancelled );
FTS_index_completed.ref();
}
catch( std::exception &ex )
{
gdWarning( "Xdxf: Failed building full-text search index for \"%s\", reason: %s\n", getName().c_str(), ex.what() );
QFile::remove( FsEncoding::decode( ftsIdxName.c_str() ) );
}
}
void XdxfDictionary::getArticleText( uint32_t articleAddress, QString & headword, QString & text )
{
try
{
string articleStr;
loadArticle( articleAddress, articleStr, &headword );
wstring wstr = Utf8::decode( articleStr );
text = Html::unescape( gd::toQString( wstr ) );
}
catch( std::exception &ex )
{
gdWarning( "Xdxf: Failed retrieving article from \"%s\", reason: %s\n", getName().c_str(), ex.what() );
}
}
sptr< Dictionary::DataRequest > XdxfDictionary::getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults )
{
return new FtsHelpers::FTSResultsRequest( *this, searchString,searchMode, matchCase, distanceBetweenWords, maxResults );
}
/// XdxfDictionary::getArticle()
class XdxfArticleRequest;
class XdxfArticleRequestRunnable: public QRunnable
{
XdxfArticleRequest & r;
QSemaphore & hasExited;
public:
XdxfArticleRequestRunnable( XdxfArticleRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~XdxfArticleRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class XdxfArticleRequest: public Dictionary::DataRequest
{
friend class XdxfArticleRequestRunnable;
wstring word;
vector< wstring > alts;
XdxfDictionary & dict;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
XdxfArticleRequest( wstring const & word_,
vector< wstring > const & alts_,
XdxfDictionary & dict_ ):
word( word_ ), alts( alts_ ), dict( dict_ )
{
QThreadPool::globalInstance()->start(
new XdxfArticleRequestRunnable( *this, hasExited ) );
}
void run(); // Run from another thread by XdxfArticleRequestRunnable
virtual void cancel()
{
isCancelled.ref();
}
~XdxfArticleRequest()
{
isCancelled.ref();
hasExited.acquire();
}
};
void XdxfArticleRequestRunnable::run()
{
r.run();
}
void XdxfArticleRequest::run()
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
vector< WordArticleLink > chain = dict.findArticles( word );
for( unsigned x = 0; x < alts.size(); ++x )
{
/// Make an additional query for each alt
vector< WordArticleLink > altChain = dict.findArticles( alts[ x ] );
chain.insert( chain.end(), altChain.begin(), altChain.end() );
}
multimap< wstring, pair< string, string > > mainArticles, alternateArticles;
set< uint32_t > articlesIncluded; // Some synonims make it that the articles
// appear several times. We combat this
// by only allowing them to appear once.
wstring wordCaseFolded = Folding::applySimpleCaseOnly( word );
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
if ( articlesIncluded.find( chain[ x ].articleOffset ) != articlesIncluded.end() )
continue; // We already have this article in the body.
// Now grab that article
string headword, articleText;
headword = chain[ x ].word;
try
{
dict.loadArticle( chain[ x ].articleOffset, articleText );
// Ok. Now, does it go to main articles, or to alternate ones? We list
// main ones first, and alternates after.
// We do the case-folded comparison here.
wstring headwordStripped =
Folding::applySimpleCaseOnly( Utf8::decode( headword ) );
multimap< wstring, pair< string, string > > & mapToUse =
( wordCaseFolded == headwordStripped ) ?
mainArticles : alternateArticles;
mapToUse.insert( pair< wstring, pair< string, string > >(
Folding::applySimpleCaseOnly( Utf8::decode( headword ) ),
pair< string, string >( headword, articleText ) ) );
articlesIncluded.insert( chain[ x ].articleOffset );
}
catch( std::exception &ex )
{
gdWarning( "XDXF: Failed loading article from \"%s\", reason: %s\n", dict.getName().c_str(), ex.what() );
}
}
if ( mainArticles.empty() && alternateArticles.empty() )
{
// No such word
finish();
return;
}
string result;
multimap< wstring, pair< string, string > >::const_iterator i;
string cleaner = "</font>""</font>""</font>""</font>""</font>""</font>"
"</font>""</font>""</font>""</font>""</font>""</font>"
"</b></b></b></b></b></b></b></b>"
"</i></i></i></i></i></i></i></i>";
for( i = mainArticles.begin(); i != mainArticles.end(); ++i )
{
// result += "<h3>";
// result += i->second.first;
// result += "</h3>";
result += i->second.second;
result += cleaner;
}
for( i = alternateArticles.begin(); i != alternateArticles.end(); ++i )
{
// result += "<h3>";
// result += i->second.first;
// result += "</h3>";
result += i->second.second;
result += cleaner;
}
Mutex::Lock _( dataMutex );
data.resize( result.size() );
memcpy( &data.front(), result.data(), result.size() );
hasAnyData = true;
finish();
}
sptr< Dictionary::DataRequest > XdxfDictionary::getArticle( wstring const & word,
vector< wstring > const & alts,
wstring const & )
throw( std::exception )
{
return new XdxfArticleRequest( word, alts, *this );
}
void XdxfDictionary::loadArticle( uint32_t address,
string & articleText,
QString * headword )
{
// Read the properties
vector< char > chunk;
char * propertiesData;
{
Mutex::Lock _( idxMutex );
propertiesData = chunks->getBlock( address, chunk );
}
if ( &chunk.front() + chunk.size() - propertiesData < 9 )
{
articleText = string( "<div class=\"xdxf\">Index seems corrupted</div>" );
return;
}
unsigned char fType = (unsigned char) *propertiesData;
uint32_t articleOffset, articleSize;
memcpy( &articleOffset, propertiesData + 1, sizeof( uint32_t ) );
memcpy( &articleSize, propertiesData + 5, sizeof( uint32_t ) );
// Load the article
char * articleBody;
{
Mutex::Lock _( dzMutex );
// Note that the function always zero-pads the result.
articleBody = dict_data_read_( dz, articleOffset, articleSize, 0, 0 );
}
if ( !articleBody )
{
// throw exCantReadFile( getDictionaryFilenames()[ 0 ] );
articleText = string( "<div class=\"xdxf\">DICTZIP error: " ) + dict_error_str( dz ) + "</div>";
return;
}
articleText = Xdxf2Html::convert( string( articleBody ), Xdxf2Html::XDXF, idxHeader.hasAbrv ? &abrv : NULL, this,
&resourceZip, fType == Logical, idxHeader.revisionNumber, headword );
free( articleBody );
}
class GzippedFile: public QIODevice
{
gzFile gz;
public:
GzippedFile( char const * fileName ) throw( exCantReadFile );
~GzippedFile();
size_t gzTell();
char * readDataArray( unsigned long startPos, unsigned long size );
protected:
dictData *dz;
virtual bool isSequential () const
{ return false; } // Which is a lie, but else pos() won't work
bool waitForReadyRead ( int )
{ return !gzeof( gz ); }
qint64 bytesAvailable() const
{
return ( gzeof( gz ) ? 0 : 1 ) + QIODevice::bytesAvailable();
}
virtual qint64 readData( char * data, qint64 maxSize );
virtual bool atEnd() const;
virtual qint64 writeData ( const char * /*data*/, qint64 /*maxSize*/ )
{ return -1; }
};
GzippedFile::GzippedFile( char const * fileName ) throw( exCantReadFile )
{
gz = gd_gzopen( fileName );
if ( !gz )
throw exCantReadFile( fileName );
DZ_ERRORS error;
dz = dict_data_open( fileName, &error, 0 );
}
GzippedFile::~GzippedFile()
{
gzclose( gz );
if( dz )
dict_data_close( dz );
}
bool GzippedFile::atEnd() const
{
return gzeof( gz );
}
size_t GzippedFile::gzTell()
{
return gztell( gz );
}
qint64 GzippedFile::readData( char * data, qint64 maxSize )
{
if ( maxSize > 1 )
maxSize = 1;
// The returning value translates directly to QIODevice semantics
int n = gzread( gz, data, maxSize );
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
// With QT 5.x QXmlStreamReader ask one byte instead of one UTF-8 char.
// We read and return all bytes for char.
if( n == 1 )
{
char ch = *data;
int addBytes = 0;
if( ch & 0x80 )
{
if( ( ch & 0xF8 ) == 0xF0 )
addBytes = 3;
else if( ( ch & 0xF0 ) == 0xE0 )
addBytes = 2;
else if( ( ch & 0xE0 ) == 0xC0 )
addBytes = 1;
}
if( addBytes )
n += gzread( gz, data + 1, addBytes );
}
#endif
return n;
}
char * GzippedFile::readDataArray( unsigned long startPos, unsigned long size )
{
if( dz == NULL )
return NULL;
return dict_data_read_( dz, startPos, size, 0, 0 );
}
QString readXhtmlData( QXmlStreamReader & stream )
{
QString result;
while( !stream.atEnd() )
{
stream.readNext();
if ( stream.isStartElement() )
{
QString name = stream.name().toString();
result += "<" + Qt4x5::escape( name ) + " ";
QXmlStreamAttributes attrs = stream.attributes();
for( int x = 0; x < attrs.size(); ++x )
{
result += Qt4x5::escape( attrs[ x ].name().toString() );
result += "=\"" + Qt4x5::escape( attrs[ x ].value().toString() ) + "\"";
}
result += ">";
result += readXhtmlData( stream );
result += "</" + Qt4x5::escape( name ) + ">";
}
else
if ( stream.isCharacters() || stream.isWhitespace() || stream.isCDATA() )
{
result += stream.text();
}
else
if ( stream.isEndElement() )
break;
}
return result;
}
namespace {
/// Deal with Qt 4.5 incompatibility
QString readElementText( QXmlStreamReader & stream )
{
#if QT_VERSION >= 0x040600
return stream.readElementText( QXmlStreamReader::SkipChildElements );
#else
return stream.readElementText();
#endif
}
}
void addAllKeyTags( QXmlStreamReader & stream, list< QString > & words )
{
// todo implement support for tag <srt>, that overrides the article sorting order
if ( stream.name() == "k" )
{
words.push_back( readElementText( stream ) );
return;
}
while( !stream.atEnd() )
{
stream.readNext();
if ( stream.isStartElement() )
addAllKeyTags( stream, words );
else
if ( stream.isEndElement() )
return;
}
}
void checkArticlePosition( GzippedFile & gzFile,
uint32_t *pOffset,
uint32_t *pSize )
{
char * data = gzFile.readDataArray( *pOffset, *pSize );
if( data == NULL )
return;
QString s = QString::fromUtf8( data );
free( data );
int n = s.lastIndexOf( "</ar" );
if( n > 0 )
*pSize -= s.size() - n;
if( s.at( 0 ) == '>')
{
*pOffset += 1;
*pSize -= 1;
}
}
void indexArticle( GzippedFile & gzFile,
QXmlStreamReader & stream,
IndexedWords & indexedWords,
ChunkedStorage::Writer & chunks,
unsigned & articleCount,
unsigned & wordCount,
ArticleFormat defaultFormat )
{
ArticleFormat format( Default );
QStringRef formatValue = stream.attributes().value( "f" );
if ( formatValue == "v" )
format = Visual;
else
if ( formatValue == "l" )
format = Logical;
if( format == Default )
format = defaultFormat;
size_t articleOffset = gzFile.pos() - 1; // stream.characterOffset() is loony
// uint32_t lineNumber = stream.lineNumber();
// uint32_t columnNumber = stream.columnNumber();
list< QString > words;
while( !stream.atEnd() )
{
stream.readNext();
// Find any <k> tags and index them
if ( stream.isEndElement() )
{
// End of the <ar> tag
if ( words.empty() )
{
// Nothing to index, this article didn't have any tags
qWarning( "Warning: no <k> tags found in an article at offset 0x%x, article skipped.\n",
(unsigned) articleOffset );
}
else
{
// Add an entry
uint32_t offset = chunks.startNewBlock();
uint32_t offs = articleOffset;
uint32_t size = gzFile.pos() - 1 - articleOffset;
checkArticlePosition( gzFile, &offs, &size );
unsigned char f = format;
chunks.addToBlock( &f, 1 );
chunks.addToBlock( &offs, sizeof( offs ) );
chunks.addToBlock( &size, sizeof( size ) );
// Add also first header - it's needed for full-text search
chunks.addToBlock( words.begin()->toUtf8().data(), words.begin()->toUtf8().length() + 1 );
// DPRINTF( "%x: %s\n", articleOffset, words.begin()->toUtf8().data() );
// Add words to index
for( list< QString >::const_iterator i = words.begin(); i != words.end();
++i )
indexedWords.addWord( gd::toWString( *i ), offset );
++articleCount;
wordCount += words.size();
}
return;
}
else
if ( stream.isStartElement() )
{
addAllKeyTags( stream, words );
}
}
}
//// XdxfDictionary::getResource()
class XdxfResourceRequest;
class XdxfResourceRequestRunnable: public QRunnable
{
XdxfResourceRequest & r;
QSemaphore & hasExited;
public:
XdxfResourceRequestRunnable( XdxfResourceRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~XdxfResourceRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class XdxfResourceRequest: public Dictionary::DataRequest
{
friend class XdxfResourceRequestRunnable;
XdxfDictionary & dict;
string resourceName;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
XdxfResourceRequest( XdxfDictionary & dict_,
string const & resourceName_ ):
dict( dict_ ),
resourceName( resourceName_ )
{
QThreadPool::globalInstance()->start(
new XdxfResourceRequestRunnable( *this, hasExited ) );
}