bool FileOps::CacheFile(void* destination, MythFile &source)
{
unsigned long long totalLength = source.Length();
unsigned long long totalRead = 0;
const long buffersize = RCV_BUF_IMAGE_SIZE;
char* buffer = new char[buffersize];
while (totalRead < totalLength)
{
int bytes_read = source.Read(buffer, buffersize);
if (bytes_read <= 0)
break;
totalRead += bytes_read;
char *p = buffer;
while (bytes_read > 0)
{
int bytes_written = XBMC->WriteFile(destination, p, bytes_read);
if (bytes_written <= 0)
break;
bytes_read -= bytes_written;
p += bytes_written;
}
}
XBMC->CloseFile(destination);
delete[] buffer;
if (totalRead < totalLength)
XBMC->Log(LOG_DEBUG, "%s: Failed to read all data: (%d/%d)", __FUNCTION__, totalRead, totalLength);
return true;
}
bool FileOps::CacheFile(const CStdString &localFilename, MythFile &source)
{
if (source.IsNull())
{
XBMC->Log(LOG_ERROR,"%s: NULL file provided", __FUNCTION__);
return false;
}
if (source.Length() == 0)
{
XBMC->Log(LOG_ERROR,"%s: Empty file provided", __FUNCTION__);
return false;
}
// Try to open the file. If it fails, check if we need to create the directory first.
// This way we avoid checking if the directory exists every time.
void *file;
if (!(file = XBMC->OpenFileForWrite(localFilename.c_str(), true)))
{
CStdString cacheDirectory = GetDirectoryName(localFilename);
if (XBMC->DirectoryExists(cacheDirectory.c_str()) || XBMC->CreateDirectory(cacheDirectory.c_str()))
{
if (g_bExtraDebug)
XBMC->Log(LOG_DEBUG, "%s: Created cache directory: %s", __FUNCTION__, cacheDirectory.c_str());
if (!(file = XBMC->OpenFileForWrite(localFilename.c_str(), true)))
{
XBMC->Log(LOG_ERROR, "%s: Failed to create cache file: %s", __FUNCTION__, localFilename.c_str());
return false;
}
}
else
{
XBMC->Log(LOG_ERROR, "%s: Failed to create cache directory: %s", __FUNCTION__, cacheDirectory.c_str());
return false;
}
}
unsigned long long totalLength = source.Length();
unsigned long long totalRead = 0;
const long buffersize = RCV_BUF_IMAGE_SIZE;
char* buffer = new char[buffersize];
while (totalRead < totalLength)
{
int bytes_read = source.Read(buffer, buffersize);
if (bytes_read <= 0)
break;
totalRead += bytes_read;
char *p = buffer;
while (bytes_read > 0)
{
int bytes_written = XBMC->WriteFile(file, p, bytes_read);
if (bytes_written <= 0)
break;
bytes_read -= bytes_written;
p += bytes_written;
}
}
XBMC->CloseFile(file);
delete[] buffer;
if (totalRead < totalLength)
{
XBMC->Log(LOG_DEBUG, "%s: Failed to read all data: %s (%d/%d)", __FUNCTION__, localFilename.c_str(), totalRead, totalLength);
}
return true;
}
void* FileOps::Process()
{
XBMC->Log(LOG_DEBUG, "%s FileOps Thread Started", __FUNCTION__);
std::list<FileOps::JobItem> jobQueueDelayed;
while (!IsStopped())
{
// Wake this thread from time to time to clean the cache and recache empty files (delayed queue)
// For caching new files, the tread is woken up by m_queueContent.Signal();
m_queueContent.Wait(c_timeoutProcess * 1000);
while (!m_jobQueue.empty() && !IsStopped())
{
Lock();
FileOps::JobItem job = m_jobQueue.front();
m_jobQueue.pop_front();
Unlock();
if (g_bExtraDebug)
XBMC->Log(LOG_DEBUG,"%s Job fetched: local: %s, remote: %s, storagegroup: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
// Connect to the file and cache it to the local addon cache
MythFile file = m_con.ConnectPath(job.m_remoteFilename, job.m_storageGroup);
if (!file.IsNull() && file.Length() > 0)
{
if (CacheFile(job.m_localFilename.c_str(), file))
{
if (g_bExtraDebug)
XBMC->Log(LOG_DEBUG, "%s File Cached: local: %s, remote: %s, type: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
}
else
{
XBMC->Log(LOG_DEBUG, "%s Caching file failed: local: %s, remote: %s, type: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
if (XBMC->FileExists(job.m_localFilename.c_str(), true))
{
XBMC->DeleteFile(job.m_localFilename.c_str());
}
}
}
else
{
// Failed to open file for reading. Unfortunately it cannot be determined if this is a permanent or a temporary problem (new recording's preview hasn't been generated yet).
// Increase the error count and retry to cache the file a few times
if (file.IsNull())
{
XBMC->Log(LOG_ERROR, "%s Failed to read file: local: %s, remote: %s, type: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
job.m_errorCount += 1;
}
// File was empty (this happens usually for new recordings where the preview image hasn't been generated yet)
// This is not an error, always try to recache the file
else if (file.Length() == 0)
{
XBMC->Log(LOG_DEBUG, "%s File is empty: local: %s, remote: %s, type: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
}
// Recache the file if it hasn't exceeded the maximum number of allowed attempts
if (job.m_errorCount <= c_maximumAttemptsOnReadError)
{
XBMC->Log(LOG_DEBUG, "%s Delayed recache file: local: %s, remote: %s, type: %s", __FUNCTION__, job.m_localFilename.c_str(), job.m_remoteFilename.c_str(), job.m_storageGroup.c_str());
jobQueueDelayed.push_back(job);
}
}
}
// Try to recache the currently empty files
Lock();
m_jobQueue.insert(m_jobQueue.end(), jobQueueDelayed.begin(), jobQueueDelayed.end());
jobQueueDelayed.clear();
Unlock();
}
XBMC->Log(LOG_DEBUG, "%s FileOps Thread Stopped", __FUNCTION__);
return NULL;
}
CStdString fileOps::GetFileFromBackend ( CStdString filenameToGet, CStdString fromStorageGroup )
{
XBMC->Log(LOG_DEBUG,"%s - Getting File via Myth Protocol - %s",
__FUNCTION__,filenameToGet.c_str());
if (filenameToGet.Left(1).compare("/") != 0)
{
filenameToGet = "/" + filenameToGet;
}
MythFile theFile;
if (fromStorageGroup.CompareNoCase("channels")==0)
{
CStdString chanFilename = "/channels" + filenameToGet;
CStdString chanSG = "c";
theFile=mythConP.ConnectPath((char*)chanFilename.c_str(),(char*)chanSG.c_str());
}
else
{
theFile=mythConP.ConnectPath((char*)filenameToGet.c_str(),(char*)fromStorageGroup.c_str());
}
if (theFile.IsNull())
{
return "";
}
int theFilesLength = theFile.Duration();
if (theFilesLength <= 0)
{
return "";
}
CStdString writeFilePath = baseLocalCachepath + fromStorageGroup + filenameToGet;
checkDirectory(writeFilePath,true);
XFILE::CFile writeFile;
if (writeFile.OpenForWrite(writeFilePath))
{
//char* theFileBuff = new char[theFilesLength];
int totalRead = 0;
while (totalRead < theFilesLength)
{
char* theFileTmpBuff = new char[theFilesLength];
int readData = theFile.Read(theFileTmpBuff,theFilesLength-totalRead);
if (readData <= 0)
{
break;
}
writeFile.Write((const void*)theFileTmpBuff,readData);
/*char *filePntr = theFileBuff;
if (totalRead > 0) {
filePntr += (totalRead);
}
if (readData > (theFilesLength-totalRead)) {
readData = (theFilesLength-totalRead);
}
memcpy((void*)filePntr,(void*)theFileTmpBuff,readData);
*/
totalRead += readData;
}
writeFile.Close();
if (totalRead < theFilesLength)
{
XBMC->Log(LOG_DEBUG,"%s - Did not Read all data - %s - %d - %d",
__FUNCTION__,filenameToGet.c_str(),totalRead,theFilesLength);
}
return writeFilePath;
}
else
{
return "";
}
}
