FileStream files

lib/filesystem/FileStream.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <iosfwd>
+#include <boost/iostreams/categories.hpp>
+#include <boost/iostreams/stream.hpp>
+
+class DLL_LINKAGE FileBuf {
+public:
+	typedef char                 					char_type;
+    typedef struct category_ :
+    	boost::iostreams::seekable_device_tag,
+    	boost::iostreams::closable_tag
+    	{} category;
+
+	FileBuf(const boost::filesystem::path& filename, std::ios_base::openmode mode = (std::ios_base::in | std::ios_base::out));
+
+    std::streamsize read(char* s, std::streamsize n);
+    std::streamsize write(const char* s, std::streamsize n);
+    std::streamoff  seek(std::streamoff off, std::ios_base::seekdir way);
+
+    void close();
+private:
+	void* filePtr;
+};
+
+struct zlib_filefunc64_def_s;
+typedef zlib_filefunc64_def_s zlib_filefunc64_def;
+
+#ifdef VCMI_DLL
+extern template class DLL_LINKAGE boost::iostreams::stream<FileBuf>;
+#else
+template class DLL_LINKAGE boost::iostreams::stream<FileBuf>;
+#endif
+
+class DLL_LINKAGE FileStream : public boost::iostreams::stream<FileBuf>
+{
+public:
+	using boost::iostreams::stream<FileBuf>::stream;
+
+	static bool CreateFile(const boost::filesystem::path& filename);
+
+	static zlib_filefunc64_def* GetMinizipFilefunc();
+};