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[CSE] Try to lock repeteadly the folder if needed.

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The upload is made in an event loop with more than one
upload at the same time, this confuses the hell out of the
folder locking mechanism.

We need to lock the folder and ask the other trials to try
again in a few seconds in the future to give time for the
uploader to actually upload the current file that's locking
the folder.
This commit is contained in:
Tomaz Canabrava 2017-12-07 21:31:20 +01:00
parent 9f678652f8
commit ccd8cff4db
2 changed files with 30 additions and 3 deletions
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27
src/libsync/propagateupload.cpp
View file

@ -248,12 +248,26 @@ void PropagateUploadFileCommon::slotFolderEncryptedStatusFetched(const QMap<QStr
}
}
/* We try to lock a folder, if it's locked we try again in one second.
* if it's still locked we try again in one second. looping untill one minute.
* -> fail.
* the 'loop': /
* slotFolderEncryptedIdReceived -> slotTryLock -> lockError -> stillTime? -> slotTryLock
* \
* -> success.
*/
void PropagateUploadFileCommon::slotFolderEncryptedIdReceived(const QStringList &list)
{
// Got the ID, Try to Lock the Folder!.
auto job = qobject_cast<LsColJob *>(sender());
const auto& folderInfo = job->_folderInfos.value(list.first());
auto *lockJob = new LockEncryptFolderApiJob(propagator()->account(), list.first().toLocal8Bit(), this);
_folderLockFirstTry.start();
slotTryLock(folderInfo.fileId);
}
void PropagateUploadFileCommon::slotTryLock(const QByteArray& fileId)
{
auto *lockJob = new LockEncryptFolderApiJob(propagator()->account(), fileId, this);
connect(lockJob, &LockEncryptFolderApiJob::success, this, &PropagateUploadFileCommon::slotFolderLockedSuccessfully);
connect(lockJob, &LockEncryptFolderApiJob::error, this, &PropagateUploadFileCommon::slotFolderLockedError);
lockJob->start();
@ -266,6 +280,15 @@ void PropagateUploadFileCommon::slotFolderLockedSuccessfully(const QByteArray& f
void PropagateUploadFileCommon::slotFolderLockedError(const QByteArray& fileId, int httpErrorCode)
{
// Add a counter or Something, this will enter in a loop.
QTimer::singleShot(1000, this, [this, fileId]{
if (_folderLockFirstTry.elapsed() > /* one minute */ 60000) {
qDebug() << "One minute passed, ignoring more attemps to lock the folder.";
return;
}
slotTryLock(fileId);
});
qDebug() << "Folder" << fileId << "Coundn't be locked.";
}

4
src/libsync/propagateupload.h
View file

@ -285,7 +285,11 @@ private slots:
void slotFolderEncryptedIdError(QNetworkReply *r);
void slotFolderLockedSuccessfully(const QByteArray& fileId, const QByteArray& token);
void slotFolderLockedError(const QByteArray& fileId, int httpErrorCode);
void slotTryLock(const QByteArray& fileId);
// Private Encryption Stuff
private:
QElapsedTimer _folderLockFirstTry;
protected:
/**