Initial commit of the new BaseFile implementation. It provides a common ground for file objects across platforms and divides responsibilities between the Common::File class and a base file implementation.

Also rearranged the factories into a new directory for clarity.

Note 1: The posix-file.h and cpp files are for testing only. Only the ds, ps2 and symbian architecture will use special BaseFile based objects.

Note 2: The current code does not yet make use of this new structure, since the Common::File remains intact.

svn-id: r28395

2 files changed, 91 insertions, 0 deletions

diff --git a/backends/file/posix/posix-file.cpp b/backends/file/posix/posix-file.cpp
new file mode 100644
index 0000000000..84c82fa5c5
--- /dev/null
+++ b/backends/file/posix/posix-file.cpp
@@ -0,0 +1,41 @@
+#include "backends/file/posix/posix-file.h"
+
+POSIXFile::POSIXFile() : BaseFile() {
+	//
+}
+
+POSIXFile::~POSIXFile() {
+	close();
+}
+
+void POSIXFile::_clearerr(FILE *stream) { 
+	clearerr(stream);
+}
+
+int POSIXFile::_fclose(FILE *stream) {
+	return fclose(stream);
+}
+
+int POSIXFile::_feof(FILE *stream) const {
+	return feof(stream);
+}
+FILE *POSIXFile::_fopen(const char * filename, const char * mode) {
+	printf("Opened a file!\n");
+	return fopen(filename, mode);
+}
+
+int POSIXFile::_fread(void *buffer, size_t obj_size, size_t num, FILE *stream) {
+	return fread(buffer, obj_size, num, stream);
+}
+
+int POSIXFile::_fseek(FILE * stream, long int offset, int origin) const {
+	return fseek(stream, offset, origin);
+}
+
+long POSIXFile::_ftell(FILE *stream) const {
+	return ftell(stream);
+}
+
+int POSIXFile::_fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream) {
+	return fwrite(ptr, obj_size, count, stream);
+}
diff --git a/backends/file/posix/posix-file.h b/backends/file/posix/posix-file.h
new file mode 100644
index 0000000000..00ce307df5
--- /dev/null
+++ b/backends/file/posix/posix-file.h
@@ -0,0 +1,50 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: $
+ * $Id: $
+ */
+
+#ifndef BACKENDS_POSIX_FILE_H
+#define BACKENDS_POSIX_FILE_H
+
+#include "backends/file/base-file.cpp"
+
+/**
+ * Implements several POSIX specific file related functions used by the Common::File wrapper.
+ * 
+ * Parts of this class are documented in the base file class, BaseFile.
+ */
+class POSIXFile : public BaseFile {
+public:
+	POSIXFile();
+	~POSIXFile();
+protected:
+	void _clearerr(FILE *stream);
+	int _fclose(FILE *stream);
+	int _feof(FILE *stream) const;
+	FILE *_fopen(const char * filename, const char * mode);
+	int _fread(void *buffer, size_t obj_size, size_t num, FILE *stream);
+	int _fseek(FILE * stream, long int offset, int origin) const;
+	long _ftell(FILE *stream) const;
+	int _fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream);
+};
+
+#endif	//BACKENDS_POSIX_FILE_H