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author | Petr Mrázek <peterix@gmail.com> | 2013-08-17 13:40:51 +0200 |
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committer | Petr Mrázek <peterix@gmail.com> | 2013-08-17 13:40:51 +0200 |
commit | 253067c782955380bbf66ac0475dc954375b1ff4 (patch) | |
tree | ca97e231fd3a764256d95b5fc8d08fc25ff72161 /depends/quazip/quagzipfile.cpp | |
parent | 77e80665422c4e97e2286418ab55e20c4030023b (diff) | |
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Move all the things (YES. Move them.)
Also, implemented some basic modlist logic, to be wired up.
Diffstat (limited to 'depends/quazip/quagzipfile.cpp')
-rw-r--r-- | depends/quazip/quagzipfile.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/depends/quazip/quagzipfile.cpp b/depends/quazip/quagzipfile.cpp new file mode 100644 index 00000000..c1c70aad --- /dev/null +++ b/depends/quazip/quagzipfile.cpp @@ -0,0 +1,141 @@ +#include <QFile> + +#include "quagzipfile.h" + +class QuaGzipFilePrivate { + friend class QuaGzipFile; + QString fileName; + gzFile gzd; + inline QuaGzipFilePrivate(): gzd(NULL) {} + inline QuaGzipFilePrivate(const QString &fileName): + fileName(fileName), gzd(NULL) {} + template<typename FileId> bool open(FileId id, + QIODevice::OpenMode mode, QString &error); + gzFile open(int fd, const char *modeString); + gzFile open(const QString &name, const char *modeString); +}; + +gzFile QuaGzipFilePrivate::open(const QString &name, const char *modeString) +{ + return gzopen(QFile::encodeName(name).constData(), modeString); +} + +gzFile QuaGzipFilePrivate::open(int fd, const char *modeString) +{ + return gzdopen(fd, modeString); +} + +template<typename FileId> +bool QuaGzipFilePrivate::open(FileId id, QIODevice::OpenMode mode, + QString &error) +{ + char modeString[2]; + modeString[0] = modeString[1] = '\0'; + if ((mode & QIODevice::ReadOnly) != 0 + && (mode & QIODevice::WriteOnly) != 0) { + error = QuaGzipFile::trUtf8("Opening gzip for both reading" + " and writing is not supported"); + return false; + } else if ((mode & QIODevice::ReadOnly) != 0) { + modeString[0] = 'r'; + } else if ((mode & QIODevice::WriteOnly) != 0) { + modeString[0] = 'w'; + } else { + error = QuaGzipFile::trUtf8("You can open a gzip either for reading" + " or for writing. Which is it?"); + return false; + } + gzd = open(id, modeString); + if (gzd == NULL) { + error = QuaGzipFile::trUtf8("Could not gzopen() file"); + return false; + } + return true; +} + +QuaGzipFile::QuaGzipFile(): +d(new QuaGzipFilePrivate()) +{ +} + +QuaGzipFile::QuaGzipFile(QObject *parent): +QIODevice(parent), +d(new QuaGzipFilePrivate()) +{ +} + +QuaGzipFile::QuaGzipFile(const QString &fileName, QObject *parent): + QIODevice(parent), +d(new QuaGzipFilePrivate(fileName)) +{ +} + +QuaGzipFile::~QuaGzipFile() +{ + if (isOpen()) { + close(); + } + delete d; +} + +void QuaGzipFile::setFileName(const QString& fileName) +{ + d->fileName = fileName; +} + +QString QuaGzipFile::getFileName() const +{ + return d->fileName; +} + +bool QuaGzipFile::isSequential() const +{ + return true; +} + +bool QuaGzipFile::open(QIODevice::OpenMode mode) +{ + QString error; + if (!d->open(d->fileName, mode, error)) { + setErrorString(error); + return false; + } + return QIODevice::open(mode); +} + +bool QuaGzipFile::open(int fd, QIODevice::OpenMode mode) +{ + QString error; + if (!d->open(fd, mode, error)) { + setErrorString(error); + return false; + } + return QIODevice::open(mode); +} + +bool QuaGzipFile::flush() +{ + return gzflush(d->gzd, Z_SYNC_FLUSH) == Z_OK; +} + +void QuaGzipFile::close() +{ + QIODevice::close(); + gzclose(d->gzd); +} + +qint64 QuaGzipFile::readData(char *data, qint64 maxSize) +{ + return gzread(d->gzd, (voidp)data, (unsigned)maxSize); +} + +qint64 QuaGzipFile::writeData(const char *data, qint64 maxSize) +{ + if (maxSize == 0) + return 0; + int written = gzwrite(d->gzd, (voidp)data, (unsigned)maxSize); + if (written == 0) + return -1; + else + return written; +} |