X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fio%2Fsg_file.hxx;h=950cc5d751f91331817d7b4e68bb1baeecb5fdc0;hb=3bcd0bafd5fba1eebadfd1cb8a7294d665cf1932;hp=b2618f28e051b16477552ae399291ec88afb6117;hpb=9325ec681e8bb61e6a5d15e42f61d10aa7a483e5;p=simgear.git

diff --git a/simgear/io/sg_file.hxx b/simgear/io/sg_file.hxx
index b2618f28..950cc5d7 100644
--- a/simgear/io/sg_file.hxx
+++ b/simgear/io/sg_file.hxx
@@ -1,62 +1,67 @@
-// sg_file.hxx -- File I/O routines
+///@file
+/// File I/O routines.
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
-// 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 library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library 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
+// This library 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.
+// Library 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-//
-// $Id$
-
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
 
 #ifndef _SG_FILE_HXX
 #define _SG_FILE_HXX
 
-
-#ifndef __cplusplus
-# error This library requires C++
-#endif
-
 #include <simgear/compiler.h>
-
-#include <string>
-
-#include <sys/types.h>		// for open(), read(), write(), close()
-#include <sys/stat.h>		// for open(), read(), write(), close()
-#include <fcntl.h>		// for open(), read(), write(), close()
-#if !defined( _MSC_VER )
-#  include <unistd.h>		// for open(), read(), write(), close()
-#endif
-
 #include "iochannel.hxx"
 
-FG_USING_STD(string);
-
+#include <string>
 
+/**
+ * A file I/O class based on SGIOChannel.
+ */
 class SGFile : public SGIOChannel {
 
-    string file_name;
+    std::string file_name;
     int fp;
+    bool eof_flag;
+    // Number of repetitions to play. -1 means loop infinitely.
+    const int repeat;
+    int iteration;              // number of current repetition,
+                                // starting at 0
 
 public:
 
-    SGFile( const string& file );
+    /**
+     * Create an instance of SGFile.
+     * When calling the constructor you need to provide a file
+     * name. This file is not opened immediately, but instead will be
+     * opened when the open() method is called.
+     * @param file name of file to open
+     * @param repeat On eof restart at the beginning of the file
+     */
+    SGFile( const std::string& file, int repeat_ = 1 );
+
+    /**
+     * Create an SGFile from an existing, open file-descriptor
+     */
+    SGFile( int existingFd );
+
+    /** Destructor */
     ~SGFile();
 
     // open the file based on specified direction
-    bool open( SGProtocolDir dir );
+    bool open( const SGProtocolDir dir );
 
     // read a block of data of specified size
     int read( char *buf, int length );
@@ -65,18 +70,19 @@ public:
     int readline( char *buf, int length );
 
     // write data to a file
-    int write( char *buf, int length );
+    int write( const char *buf, const int length );
 
     // write null terminated string to a file
-    int writestring( char *str );
+    int writestring( const char *str );
 
     // close file
     bool close();
 
-    inline string get_file_name() const { return file_name; }
-};
+    /** @return the name of the file being manipulated. */
+    inline std::string get_file_name() const { return file_name; }
 
+    /** @return true of eof conditions exists */
+    virtual bool eof() const { return eof_flag; };
+};
 
 #endif // _SG_FILE_HXX
-
-