bool ClearManager::addTask(int task) {
QMutexLocker lock(&data->mutex);
if (!data->working) return false;
if (!data->tasks.isEmpty() && (data->tasks.at(0) == ClearManagerAll)) return true;
if (task == ClearManagerAll) {
data->tasks.clear();
} else {
if (task & ClearManagerImages) {
if (data->images.isEmpty()) {
data->images = _storageMap;
} else {
for (StorageMap::const_iterator i = _storageMap.cbegin(), e = _storageMap.cend(); i != e; ++i) {
StorageKey k = i.key();
while (data->images.constFind(k) != data->images.cend()) {
++k.second;
}
data->images.insert(k, i.value());
}
}
_storageMap.clear();
_storageFilesSize = 0;
_mapChanged = true;
_writeMap();
}
for (int32 i = 0, l = data->tasks.size(); i < l; ++i) {
if (data->tasks.at(i) == task) return true;
}
}
data->tasks.push_back(task);
return true;
}
void writeImage(const StorageKey &location, const StorageImageSaved &image, bool overwrite) {
if (!_working()) return;
qint32 size = _storageImageSize(image.data.size());
StorageMap::const_iterator i = _storageMap.constFind(location);
if (i == _storageMap.cend()) {
i = _storageMap.insert(location, FileDesc(genKey(), size));
_storageFilesSize += size;
_mapChanged = true;
_writeMap();
} else if (!overwrite) {
return;
}
EncryptedDescriptor data(sizeof(quint64) * 2 + sizeof(quint32) + sizeof(quint32) + image.data.size());
data.stream << quint64(location.first) << quint64(location.second) << quint32(image.type) << image.data;
FileWriteDescriptor file(i.value().first, false);
file.writeEncrypted(data);
if (i.value().second != size) {
_storageFilesSize += size;
_storageFilesSize -= i.value().second;
_storageMap[location].second = size;
}
}
void ClearManager::onStart() {
while (true) {
int task = 0;
bool result = false;
StorageMap images;
{
QMutexLocker lock(&data->mutex);
if (data->tasks.isEmpty()) {
data->working = false;
break;
}
task = data->tasks.at(0);
images = data->images;
}
switch (task) {
case ClearManagerAll:
result = (QDir(cTempDir()).removeRecursively() && QDir(_basePath).removeRecursively());
break;
case ClearManagerDownloads:
result = QDir(cTempDir()).removeRecursively();
break;
case ClearManagerImages:
for (StorageMap::const_iterator i = images.cbegin(), e = images.cend(); i != e; ++i) {
clearKey(i.value().first, false);
}
result = true;
break;
}
{
QMutexLocker lock(&data->mutex);
if (data->tasks.at(0) == task) {
data->tasks.pop_front();
if (data->tasks.isEmpty()) {
data->working = false;
}
}
if (result) {
emit succeed(task, data->working ? 0 : this);
} else {
emit failed(task, data->working ? 0 : this);
}
if (!data->working) break;
}
}
}