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QSaveFile: Flush temporary file and fsync before renaming.

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Closes #301
This commit is contained in:
Felix Geyer 2015-07-13 20:49:17 +02:00
parent 577609b3e3
commit 154f1673e9
1 changed files with 15 additions and 1 deletions
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16
src/core/qsavefile.cpp
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@ -46,6 +46,12 @@
#include <QFileInfo> #include <QFileInfo>
#include <QTemporaryFile> #include <QTemporaryFile>
#ifdef Q_OS_WIN
# include <windows.h>
#else
# include <unistd.h>
#endif
QSaveFilePrivate::QSaveFilePrivate() QSaveFilePrivate::QSaveFilePrivate()
: tempFile(0), error(QFile::NoError) : tempFile(0), error(QFile::NoError)
{ {
@ -283,7 +289,15 @@ bool QSaveFile::commit()
qWarning("QSaveFile::commit: File (%s) is not open", qPrintable(fileName())); qWarning("QSaveFile::commit: File (%s) is not open", qPrintable(fileName()));
return false; return false;
} }
QIODevice::close(); // flush and close flush();
#ifdef Q_OS_WIN
FlushFileBuffers(reinterpret_cast<HANDLE>(handle()));
#elif defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
fdatasync(d->tempFile->handle());
#else
fsync(d->tempFile->handle());
#endif
QIODevice::close();
if (d->error != QFile::NoError) { if (d->error != QFile::NoError) {
d->tempFile->remove(); d->tempFile->remove();
unsetError(); unsetError();