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Merge FileFileName::Private::checksum() into FileFileName::checksum().
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@26615 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Abdelrazak Younes
parent
0442417d22
commit
56a60dce0a
@ -121,85 +121,10 @@ struct FileName::Private
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#endif
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}
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unsigned long checksum();
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///
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QFileInfo fi;
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};
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unsigned long FileName::Private::checksum()
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{
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#if QT_VERSION >= 0x999999
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// First version of checksum uses Qt4.4 mmap support.
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// FIXME: This code is not ready with Qt4.4.2,
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// see http://bugzilla.lyx.org/show_bug.cgi?id=5293
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// FIXME: should we check if the MapExtension extension is supported?
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// see QAbstractFileEngine::supportsExtension() and
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// QAbstractFileEngine::MapExtension)
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QFile qf(fi.filePath());
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if (!qf.open(QIODevice::ReadOnly))
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return 0;
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qint64 size = fi.size();
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uchar * ubeg = qf.map(0, size);
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uchar * uend = ubeg + size;
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boost::crc_32_type ucrc;
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ucrc.process_block(ubeg, uend);
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qf.unmap(ubeg);
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qf.close();
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return ucrc.checksum();
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#endif
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//FIXME: This doesn't work on Windows for non ascii file names. Provided that
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// Windows package uses Qt4.4, this isn't a problem.
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QByteArray const encoded = QFile::encodeName(fi.absoluteFilePath());
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char const * file = encoded.constData();
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#ifdef SUM_WITH_MMAP
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//LYXERR(Debug::FILES, "using mmap (lightning fast)");
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int fd = open(file, O_RDONLY);
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if (!fd)
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return 0;
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struct stat info;
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fstat(fd, &info);
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void * mm = mmap(0, info.st_size, PROT_READ,
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MAP_PRIVATE, fd, 0);
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// Some platforms have the wrong type for MAP_FAILED (compaq cxx).
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if (mm == reinterpret_cast<void*>(MAP_FAILED)) {
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close(fd);
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return 0;
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}
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char * beg = static_cast<char*>(mm);
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char * end = beg + info.st_size;
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boost::crc_32_type crc;
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crc.process_block(beg, end);
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unsigned long result = crc.checksum();
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munmap(mm, info.st_size);
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close(fd);
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return result;
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#else // no SUM_WITH_MMAP
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//LYXERR(Debug::FILES, "lyx::sum() using istreambuf_iterator (fast)");
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ifstream ifs(file, ios_base::in | ios_base::binary);
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if (!ifs)
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return 0;
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istreambuf_iterator<char> beg(ifs);
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istreambuf_iterator<char> end;
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boost::crc_32_type crc;
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crc = for_each(beg, end, crc);
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return crc.checksum();
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#endif // SUM_WITH_MMAP
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}
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/////////////////////////////////////////////////////////////////////
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//
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// FileName
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@ -330,6 +255,8 @@ bool FileName::changePermission(unsigned long int mode) const
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string FileName::toFilesystemEncoding() const
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{
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// FIXME: This doesn't work on Windows for non ascii file names with Qt < 4.4.
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// Provided that Windows package uses Qt4.4, this isn't a problem.
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QByteArray const encoded = QFile::encodeName(d->fi.absoluteFilePath());
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return string(encoded.begin(), encoded.end());
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}
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@ -521,24 +448,94 @@ bool FileName::chdir() const
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unsigned long FileName::checksum() const
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{
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unsigned long result = 0;
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if (!exists()) {
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//LYXERR0("File \"" << absFilename() << "\" does not exist!");
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return 0;
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return result;
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}
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// a directory may be passed here so we need to test it. (bug 3622)
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if (isDirectory()) {
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LYXERR0('"' << absFilename() << "\" is a directory!");
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return 0;
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return result;
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}
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if (!lyxerr.debugging(Debug::FILES))
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return d->checksum();
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QTime t;
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t.start();
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unsigned long r = d->checksum();
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lyxerr << "Checksumming \"" << absFilename() << "\" "
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<< r << " lasted " << t.elapsed() << " ms." << endl;
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return r;
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// This is used in the debug output at the end of the method.
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static QTime t;
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if (lyxerr.debugging(Debug::FILES))
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t.restart();
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#if QT_VERSION >= 0x999999
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// First version of checksum uses Qt4.4 mmap support.
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// FIXME: This code is not ready with Qt4.4.2,
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// see http://bugzilla.lyx.org/show_bug.cgi?id=5293
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// FIXME: should we check if the MapExtension extension is supported?
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// see QAbstractFileEngine::supportsExtension() and
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// QAbstractFileEngine::MapExtension)
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QFile qf(fi.filePath());
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if (!qf.open(QIODevice::ReadOnly))
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return result;
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qint64 size = fi.size();
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uchar * ubeg = qf.map(0, size);
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uchar * uend = ubeg + size;
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boost::crc_32_type ucrc;
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ucrc.process_block(ubeg, uend);
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qf.unmap(ubeg);
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qf.close();
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result = ucrc.checksum();
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#else // QT_VERSION
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string const encoded = toFilesystemEncoding();
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char const * file = encoded.c_str();
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#ifdef SUM_WITH_MMAP
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//LYXERR(Debug::FILES, "using mmap (lightning fast)");
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int fd = open(file, O_RDONLY);
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if (!fd)
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return result;
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struct stat info;
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fstat(fd, &info);
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void * mm = mmap(0, info.st_size, PROT_READ,
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MAP_PRIVATE, fd, 0);
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// Some platforms have the wrong type for MAP_FAILED (compaq cxx).
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if (mm == reinterpret_cast<void*>(MAP_FAILED)) {
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close(fd);
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return result;
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}
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char * beg = static_cast<char*>(mm);
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char * end = beg + info.st_size;
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boost::crc_32_type crc;
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crc.process_block(beg, end);
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unsigned long result = crc.checksum();
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munmap(mm, info.st_size);
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close(fd);
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#else // no SUM_WITH_MMAP
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//LYXERR(Debug::FILES, "lyx::sum() using istreambuf_iterator (fast)");
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ifstream ifs(file, ios_base::in | ios_base::binary);
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if (!ifs)
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return result;
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istreambuf_iterator<char> beg(ifs);
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istreambuf_iterator<char> end;
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boost::crc_32_type crc;
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crc = for_each(beg, end, crc);
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result = crc.checksum();
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#endif // SUM_WITH_MMAP
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#endif // QT_VERSION
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LYXERR(Debug::FILES, "Checksumming \"" << absFilename() << "\" "
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<< result << " lasted " << t.elapsed() << " ms.");
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return result;
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}
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