Modified EntriesOnSameFileSystem(), so that it returns 'true' if either of the given; changed handling the 'error' variable in cDirCopier

CONTRIBUTORS

@@ -2420,6 +2420,7 @@ Christoph Haubrich <christoph1.haubrich@arcor.de>
  for reporting a bug in setting an empty recording name or folder to a blank in the
  "Edit recording" menu
  for suggesting to add a confirmation before renaming a recording to its folder name
+ for reporting a problem with data loss in case renaming a recording fails
 
 Pekka Mauno <pekka.mauno@iki.fi>
  for fixing cSchedule::GetFollowingEvent() in case there is currently no present

HISTORY

@@ -8515,3 +8515,8 @@ Video Disk Recorder Revision History
   menu (reported by Christoph Haubrich).
 - Added a confirmation before renaming a recording to its folder name (suggested
   by Christoph Haubrich).
+- Modified EntriesOnSameFileSystem(), so that it returns 'true' if either of the given
+  files doesn't exist (to avoid any actions that might be triggered if files are on
+  different file system), and changed handling the 'error' variable in cDirCopier, so
+  that it is initialized to 'true' and will only be set to 'false' if the entire
+  copy process has been successful (problem reported by Christoph Haubrich).

recording.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: recording.c 3.26 2015/02/06 15:13:59 kls Exp $
+ * $Id: recording.c 3.27 2015/02/07 16:07:22 kls Exp $
  */
 
 #include "recording.h"
@@ -1676,7 +1676,7 @@ cDirCopier::cDirCopier(const char *DirNameSrc, const char *DirNameDst)
 {
   dirNameSrc = DirNameSrc;
   dirNameDst = DirNameDst;
-  error = false;
+  error = true; // prepare for the worst!
   suspensionLogged = false;
 }
 
@@ -1790,6 +1790,7 @@ void cDirCopier::Action(void)
               else {
                  // We're done:
                  dsyslog("done copying directory '%s' to '%s'", *dirNameSrc, *dirNameDst);
+                 error = false;
                  return;
                  }
               }
@@ -1802,7 +1803,6 @@ void cDirCopier::Action(void)
      }
   else
      esyslog("ERROR: can't access '%s'", *dirNameDst);
-  error = true;
 }
 
 void cDirCopier::Stop(void)

tools.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 3.3 2014/03/22 14:22:55 kls Exp $
+ * $Id: tools.c 3.4 2015/02/07 16:07:22 kls Exp $
  */
 
 #include "tools.h"
@@ -404,7 +404,7 @@ bool EntriesOnSameFileSystem(const char *File1, const char *File2)
      }
   else
      LOG_ERROR_STR(File1);
-  return false;
+  return true; // we only return false if both files actually exist and are in different file systems!
 }
 
 int FreeDiskSpaceMB(const char *Directory, int *UsedMB)

tools.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 3.6 2015/01/14 09:09:06 kls Exp $
+ * $Id: tools.h 3.7 2015/02/07 16:07:22 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -234,6 +234,9 @@ cString dtoa(double d, const char *Format = "%f");
 cString itoa(int n);
 cString AddDirectory(const char *DirName, const char *FileName);
 bool EntriesOnSameFileSystem(const char *File1, const char *File2);
+    ///< Checks whether the given files are on the same file system. If either of the
+    ///< files doesn't exist, this function returns *true* to avoid any actions that might be
+    ///< triggered if files are on different file system.
 int FreeDiskSpaceMB(const char *Directory, int *UsedMB = NULL);
 bool DirectoryOk(const char *DirName, bool LogErrors = false);
 bool MakeDirs(const char *FileName, bool IsDirectory = false);