Fixed handling recordings on other file systems than the video directory

HISTORY

@@ -5579,7 +5579,7 @@ Video Disk Recorder Revision History
   is not available, in order to allow staying on an encrypted channel that takes
   a while for the CAM to start decrypting.
 
-2008-02-10: Version 1.5.15
+2008-02-16: Version 1.5.15
 
 - Updated the Italian OSD texts (thanks to Diego Pierotto).
 - Added option -i to the pictures plugin's pic2mpg to ignore unknown file types.
@@ -5624,3 +5624,10 @@ Video Disk Recorder Revision History
   stopped immediately (thanks to Mikko Matilainen for reporting a possible crash
   if the Info key is pressed after deleting the currently replayed recording).
 - Updated the Russian OSD texts (thanks to Oleg Roitburd).
+- When determining the amount of free disk space, any deleted (but not yet removed)
+  recordings on different file systems (that are mounted under the video directory)
+  are no longer taken into account.
+- When running out of disk space during a recording, only such deleted or old
+  recordings are removed, that actually are on the video directory file system(s).
+  This prevents VDR from accidentally deleting recordings on other file systems,
+  which would not add any free space to the video directory.

UPDATE-1.6.0

@@ -63,9 +63,18 @@ Channels:
   parameter to 0 turns off the automatic channel switching, and the user will
   have to confirm the entry by pressing the "Ok" key.
 
-Recording:
+Recordings:
 
 - The info.vdr file now also stores the name of the channel.
+- When deleting the recording that is currently replayed, the replay is now
+  stopped immediately.
+- When determining the amount of free disk space, any deleted (but not yet removed)
+  recordings on different file systems (that are mounted under the video directory)
+  are no longer taken into account.
+- When running out of disk space during a recording, only such deleted or old
+  recordings are removed, that actually are on the video directory file system(s).
+  This prevents VDR from accidentally deleting recordings on other file systems,
+  which would not add any free space to the video directory.
 
 SVDRP:
 
@@ -128,3 +137,5 @@ Misc:
   menu.
 - Changed the message "Upcoming VPS recording!" to "Upcoming recording!" because
   it applies to non-VPS recordings as well.
+- Limiting the length of the recording name in timers in case VDR is run with
+  --vfat, in order to avoid names that are too long for Windows.

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 1.160 2008/02/15 15:50:06 kls Exp $
+ * $Id: recording.c 1.161 2008/02/16 13:31:39 kls Exp $
  */
 
 #include "recording.h"
@@ -144,10 +144,12 @@ void AssertFreeDiskSpace(int Priority, bool Force)
         cThreadLock DeletedRecordingsLock(&DeletedRecordings);
         if (DeletedRecordings.Count()) {
            cRecording *r = DeletedRecordings.First();
-           cRecording *r0 = r;
+           cRecording *r0 = NULL;
            while (r) {
-                 if (r->start < r0->start)
+                 if (IsOnVideoDirectoryFileSystem(r->FileName())) { // only remove recordings that will actually increase the free video disk space
+                    if (!r0 || r->start < r0->start)
                        r0 = r;
+                    }
                  r = DeletedRecordings.Next(r);
                  }
            if (r0 && r0->Remove()) {
@@ -156,11 +158,13 @@ void AssertFreeDiskSpace(int Priority, bool Force)
               return;
               }
            }
+        else {
            // DeletedRecordings was empty, so to be absolutely sure there are no
            // deleted recordings we need to double check:
            DeletedRecordings.Update(true);
            if (DeletedRecordings.Count())
               return; // the next call will actually remove it
+           }
         // No "deleted" files to remove, so let's see if we can delete a recording:
         isyslog("...no deleted recording found, trying to delete an old recording...");
         cThreadLock RecordingsLock(&Recordings);
@@ -168,6 +172,7 @@ void AssertFreeDiskSpace(int Priority, bool Force)
            cRecording *r = Recordings.First();
            cRecording *r0 = NULL;
            while (r) {
+                 if (IsOnVideoDirectoryFileSystem(r->FileName())) { // only delete recordings that will actually increase the free video disk space
                     if (!r->IsEdited() && r->lifetime < MAXLIFETIME) { // edited recordings and recordings with MAXLIFETIME live forever
                        if ((r->lifetime == 0 && Priority > r->priority) || // the recording has no guaranteed lifetime and the new recording has higher priority
                            (r->lifetime > 0 && (time(NULL) - r->start) / SECSINDAY >= r->lifetime)) { // the recording's guaranteed lifetime has expired
@@ -179,6 +184,7 @@ void AssertFreeDiskSpace(int Priority, bool Force)
                              r0 = r;
                           }
                        }
+                    }
                  r = Recordings.Next(r);
                  }
            if (r0 && r0->Delete()) {
@@ -1035,7 +1041,7 @@ int cRecordings::TotalFileSizeMB(void)
   int size = 0;
   LOCK_THREAD;
   for (cRecording *recording = First(); recording; recording = Next(recording)) {
-      if (recording->fileSizeMB > 0)
+      if (recording->fileSizeMB > 0 && IsOnVideoDirectoryFileSystem(recording->FileName()))
          size += recording->fileSizeMB;
       }
   return size;
@@ -1401,10 +1407,6 @@ bool cIndexFile::IsStillRecording()
 
 // --- cFileName -------------------------------------------------------------
 
-#include <errno.h>
-#include <unistd.h>
-#include "videodir.h"
-
 #define MAXFILESPERRECORDING 255
 #define RECORDFILESUFFIX    "/%03d.vdr"
 #define RECORDFILESUFFIXLEN 20 // some additional bytes for safety...

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 1.142 2008/02/15 14:45:05 kls Exp $
+ * $Id: tools.c 1.143 2008/02/16 13:38:22 kls Exp $
  */
 
 #include "tools.h"
@@ -277,6 +277,21 @@ cString itoa(int n)
   return buf;
 }
 
+bool EntriesOnSameFileSystem(const char *File1, const char *File2)
+{
+  struct statfs statFs;
+  if (statfs(File1, &statFs) == 0) {
+     fsid_t fsid1 = statFs.f_fsid;
+     if (statfs(File2, &statFs) == 0)
+        return memcmp(&statFs.f_fsid, &fsid1, sizeof(fsid1)) == 0;
+     else
+        LOG_ERROR_STR(File2);
+     }
+  else
+     LOG_ERROR_STR(File1);
+  return false;
+}
+
 int FreeDiskSpaceMB(const char *Directory, int *UsedMB)
 {
   if (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 1.111 2008/02/15 14:10:11 kls Exp $
+ * $Id: tools.h 1.112 2008/02/16 13:00:16 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -193,6 +193,7 @@ int numdigits(int n);
 bool isnumber(const char *s);
 cString itoa(int n);
 cString AddDirectory(const char *DirName, const char *FileName);
+bool EntriesOnSameFileSystem(const char *File1, const char *File2);
 int FreeDiskSpaceMB(const char *Directory, int *UsedMB = NULL);
 bool DirectoryOk(const char *DirName, bool LogErrors = false);
 bool MakeDirs(const char *FileName, bool IsDirectory = false);

videodir.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: videodir.c 1.14 2005/12/18 10:33:20 kls Exp $
+ * $Id: videodir.c 1.15 2008/02/16 13:00:03 kls Exp $
  */
 
 #include "videodir.h"
@@ -232,3 +232,12 @@ void RemoveEmptyVideoDirectories(void)
      } while (Dir.Next());
 }
 
+bool IsOnVideoDirectoryFileSystem(const char *FileName)
+{
+  cVideoDirectory Dir;
+  do {
+     if (EntriesOnSameFileSystem(Dir.Name(), FileName))
+        return true;
+     } while (Dir.Next());
+  return false;
+}

videodir.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: videodir.h 1.6 2005/10/31 11:50:23 kls Exp $
+ * $Id: videodir.h 1.7 2008/02/16 12:53:11 kls Exp $
  */
 
 #ifndef __VIDEODIR_H
@@ -23,5 +23,6 @@ bool VideoFileSpaceAvailable(int SizeMB);
 int VideoDiskSpace(int *FreeMB = NULL, int *UsedMB = NULL); // returns the used disk space in percent
 cString PrefixVideoFileName(const char *FileName, char Prefix);
 void RemoveEmptyVideoDirectories(void);
+bool IsOnVideoDirectoryFileSystem(const char *FileName);
 
 #endif //__VIDEODIR_H