CPath::lookup is not thread-safe

nel/include/nel/sound/stream_file_source.h

@@ -96,6 +96,8 @@ private:
 
 	IAudioDecoder *m_AudioDecoder;
 
+	std::string m_LookupPath;
+
 	bool m_Paused;
 	bool m_DecodingEnded;
 

nel/src/sound/audio_decoder.cpp

@@ -56,18 +56,12 @@ IAudioDecoder::~IAudioDecoder()
 
 IAudioDecoder *IAudioDecoder::createAudioDecoder(const std::string &filepath, bool async, bool loop)
 {
-	std::string lookup = CPath::lookup(filepath, false);
-	if (lookup.empty())
-	{ 
-		nlwarning("Music file %s does not exist!", filepath.c_str());
-		return NULL; 
-	}
 	std::string type = CFile::getExtension(filepath);
 
 	CIFile *ifile = new CIFile();
 	ifile->setCacheFileOnOpen(!async);
 	ifile->allowBNPCacheFileOnOpen(!async);
-	ifile->open(lookup);
+	ifile->open(filepath);
 
 	IAudioDecoder *mb = createAudioDecoder(type, ifile, loop);
 

nel/src/sound/stream_file_source.cpp

@@ -108,6 +108,13 @@ void CStreamFileSource::play()
 		//{
 		//	nlwarning("Already waiting for play");
 		//}
+		std::string filepath = getStreamFileSound()->getFilePath();
+		m_LookupPath = NLMISC::CPath::lookup(filepath, false, false);
+		if (m_LookupPath.empty())
+		{
+			nlwarning("Music file %s does not exist!", filepath.c_str());
+			return;
+		}
 		if (!getStreamFileSound()->getAsync())
 		{
 			if (!prepareDecoder())
@@ -272,7 +279,8 @@ bool CStreamFileSource::prepareDecoder()
 	if (!m_AudioDecoder)
 	{
 		// load the file
-		m_AudioDecoder = IAudioDecoder::createAudioDecoder(getStreamFileSound()->getFilePath(), getStreamFileSound()->getAsync(), getStreamFileSound()->getLooping());
+		nlassert(!m_LookupPath.empty());
+		m_AudioDecoder = IAudioDecoder::createAudioDecoder(m_LookupPath, getStreamFileSound()->getAsync(), getStreamFileSound()->getLooping());
 		if (!m_AudioDecoder)
 		{
 			nlwarning("Failed to create IAudioDecoder, likely invalid format");