svn -> git Migration

2026-05-19 13:28:25 +00:00 · 2013-02-16 16:14:39 -08:00
parent 88c9715fb0
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+/** \file MemFile.h
+ **	\date  2005-04-25
+ **	\author grymse@alhem.net
+**/
+/*
+Copyright (C) 2004,2005  Anders Hedstrom
+
+This library is made available under the terms of the GNU GPL.
+
+If you would like to use this library in a closed-source application,
+a separate license agreement is available. For information about 
+the closed-source license agreement for the C++ sockets library,
+please visit http://www.alhem.net/Sockets/license.html and/or
+email license@alhem.net.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+#ifndef _MEMFILE_H
+#define _MEMFILE_H
+
+#include <map>
+#include "IFile.h"
+
+#define BLOCKSIZE 32768
+
+#ifdef SOCKETS_NAMESPACE
+namespace SOCKETS_NAMESPACE {
+#endif
+
+
+/** Implements a memory file. 
+	\ingroup file */
+class MemFile : public IFile
+{
+public:
+	/** File block structure. 
+		\ingroup file */
+	struct block_t {
+		block_t() : next(NULL) {}
+		struct block_t *next;
+		char data[BLOCKSIZE];
+	};
+public:
+	MemFile();
+	MemFile(const std::string& path);
+	~MemFile();
+
+	bool fopen(const std::string& path, const std::string& mode);
+	void fclose();
+
+	size_t fread(char *ptr, size_t size, size_t nmemb);
+	size_t fwrite(const char *ptr, size_t size, size_t nmemb);
+
+	char *fgets(char *s, int size);
+	void fprintf(char *format, ...);
+
+	off_t size();
+	bool eof();
+
+private:
+	MemFile(const MemFile& ) {} // copy constructor
+	MemFile& operator=(const MemFile& ) { return *this; } // assignment operator
+
+static	std::map<std::string,block_t *> m_files;
+	std::string m_path;
+	bool m_temporary;
+	block_t *m_base;
+	block_t *m_current_read;
+	block_t *m_current_write;
+	size_t m_read_ptr;
+	size_t m_write_ptr;
+};
+
+
+
+
+#ifdef SOCKETS_NAMESPACE
+}
+#endif
+
+#endif // _MEMFILE_H