void QueueProcessor::ProcessQueues()
{
while(!ShouldShutdown())
{
auto task = GetTask();
if (task)
{
try
{
task->Execute();
}
catch(const std::exception&)
{
//CurrentException(ex.what());
}
catch(...)
{
}
}
else
{
WaitForChanges();
}
}
}
sbError
sbiTunesAgentProcessor::ProcessTaskFile()
{
int retry = 60;
if (!OpenResultsFile()) {
return sbError("Failed to open results file to check for start!");
}
if (OpenResultsFile().tellp() == std::ofstream::pos_type(0)) {
OpenResultsFile() << '[' << SCHEMA_VERSION << ":2]\n"
<< '[' << ADDED_MEDIA_ITEMS << "]\n";
}
// Keep process all files we find
while (OpenTaskFile(mInputStream)) {
if (!mInputStream) {
// Can't open, maybe it's being written to try again
if (--retry == 0) {
return sbError("Unable to open the export track file");
}
Sleep(1000);
continue;
}
sbError const & error = Initialize();
if (error && !ErrorHandler(error)) {
return error;
}
std::string line;
std::string action;
std::string source;
int lineno = 0;
while (std::getline(mInputStream, line)) {
std::string::size_type const beginBracket =
line.find_first_not_of(" \t");
// Look for the right bracket as first non-whitespace
if (beginBracket != std::string::npos && line[beginBracket] == '[') {
std::string::size_type const endBracket = line.find_last_of(']');
if (endBracket != std::string::npos) {
std::string task = line.substr(beginBracket + 1,
endBracket - beginBracket - 1);
ParseTask(task, action, source);
if (action == SCHEMA_VERSION) {
VersionAction const versionAction = VersionCheck(source);
action.clear();
source.clear();
if (versionAction == ABORT) {
return sbError("Incompatible version encountered");
}
else if (versionAction == RETRY) {
mInputStream.close();
continue; // Will hit the inner while and it will stop
}
}
sbError error = ProcessPendingTrackBatch();
SB_ENSURE_ERRORHANDLER(error);
}
}
else {
// If there is no action then there's nothing to do yet
if (action.empty()) {
++lineno;
continue;
}
std::string::size_type const equalSign = line.find('=');
if (equalSign != std::string::npos) {
std::string const & key =
Strip(line.substr(0, equalSign));
std::string const & value =
Unescape(Strip(line.substr(equalSign + 1)));
// We've been told to add the track
if (action == ADDED_MEDIA_ITEMS) {
sbError const & error = AddTrack(source, key, value, ADDED_MEDIA_ITEMS);
SB_ENSURE_ERRORHANDLER(error);
}
else if (action == UPDATED_MEDIA_ITEMS) {
sbError const & error = UpdateTrack(key, value);
SB_ENSURE_ERRORHANDLER(error);
}
else if (action == ADDED_PLAYLISTS) {
sbError error = CreatePlaylist(value);
SB_ENSURE_ERRORHANDLER(error);
}
// We've been told to remove the playlist
else if (action == DELETED_PLAYLISTS) {
sbError error = RemovePlaylist(value);
SB_ENSURE_ERRORHANDLER(error);
}
else if (action == UPDATED_SMARTPLAYLIST) {
sbError const & error = AddTrack(source,
key,
value,
UPDATED_SMARTPLAYLIST);
SB_ENSURE_ERRORHANDLER(error);
}
else {
std::ostringstream msg;
msg << action << " is an invalid action , ignoring line "
<< lineno;
sbError error(msg.str());
SB_ENSURE_ERRORHANDLER(error);
action.clear();
}
}
else {
// If the line wasn't blank then report an error
if (!Strip(line).empty()) {
std::ostringstream msg;
msg << action
<< " is an invalid action , ignoring line " << lineno;
sbError error(msg.str());
SB_ENSURE_ERRORHANDLER(error);
}
}
}
++lineno;
if (ShouldShutdown()) {
// Notify shutdown done and exit
ShutdownDone();
return sbNoError;
}
}
if (!mTrackBatch.empty()) {
sbError const & error = ProcessPendingTrackBatch();
SB_ENSURE_ERRORHANDLER(error);
}
// Close the stream and remove the file
mInputStream.close();
mInputStream.clear();
RemoveTaskFile();
}
return sbNoError;
}