X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fio%2Fsg_file.hxx;h=7d84286389778812efdd72b49dfd9022eb223723;hb=adb7db9229db1d869b254ac18f1471bed464c508;hp=994cc27564364240e1b4de5c9a3c06e94d28d580;hpb=22812a0aaef07c8da20b0c7e151016965e29dcff;p=simgear.git

diff --git a/simgear/io/sg_file.hxx b/simgear/io/sg_file.hxx
index 994cc275..7d842863 100644
--- a/simgear/io/sg_file.hxx
+++ b/simgear/io/sg_file.hxx
@@ -1,8 +1,10 @@
-// sg_file.hxx -- File I/O routines
-//
+/** \file sg_file.hxx
+ * 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
@@ -16,7 +18,7 @@
 //
 // 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.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
 // $Id$
 
@@ -24,39 +26,48 @@
 #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);
-
 
+/**
+ * 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();
+    /**
+     * 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 );
@@ -65,16 +76,19 @@ 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; }
-    inline void set_file_name( const string& fn ) { file_name = fn; }
+    /** @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; };
 };