- fixed memory leaks in file system management

src/common/filesystem/source/filesystem.cpp

@@ -194,7 +194,7 @@ static void PrintLastError (FileSystemMessageFunc Printf);
 
 FileSystem::FileSystem()
 {
-	stringpool = new StringPool;
+	stringpool = new StringPool(true);
 	stringpool->shared = true;	// will be used by all owned resource files.
 }
 
@@ -219,6 +219,8 @@ void FileSystem::DeleteAll ()
 		delete Files[i];
 	}
 	Files.clear();
+	delete stringpool;
+	stringpool = nullptr;
 }
 
 //==========================================================================

src/common/filesystem/source/fs_stringpool.h

@@ -8,7 +8,7 @@ class StringPool
 	friend class FileSystem;
 	friend class FResourceFile;
 private:
-	StringPool(size_t blocksize = 10*1024) : TopBlock(nullptr), FreeBlocks(nullptr), BlockSize(blocksize) {}
+	StringPool(bool _shared, size_t blocksize = 10*1024) : TopBlock(nullptr), FreeBlocks(nullptr), BlockSize(blocksize), shared(_shared) {}
 public:
 	~StringPool();
 	const char* Strdup(const char*);

src/common/filesystem/source/resourcefile.cpp

@@ -332,7 +332,7 @@ FResourceFile *FResourceFile::OpenDirectory(const char *filename, LumpFilterInfo
 
 FResourceFile::FResourceFile(const char *filename, StringPool* sp)
 {
-	stringpool = sp ? sp : new StringPool;
+	stringpool = sp ? sp : new StringPool(false);
 	FileName = stringpool->Strdup(filename);
 }