The new class cUnbufferedFile is used for the recording files to avoid thrashing the file system cache1.3.35

1 files changed, 22 insertions, 1 deletions

diff --git a/tools.h b/tools.h
index 83bdeb41..f348b2e5 100644
--- a/tools.h
+++ b/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 1.80 2005/10/09 11:13:06 kls Exp $
+ * $Id: tools.h 1.81 2005/10/31 12:54:36 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -198,6 +198,27 @@ public:
   bool Close(void);
   };
 
+/// cUnbufferedFile is used for large files that are mainly written or read
+/// in a streaming manner, and thus should not be cached.
+
+class cUnbufferedFile {
+private:
+  int fd;
+  off_t begin;
+  off_t end;
+  off_t ahead;
+  ssize_t written;
+public:
+  cUnbufferedFile(void);
+  ~cUnbufferedFile();
+  int Open(const char *FileName, int Flags, mode_t Mode = DEFFILEMODE);
+  int Close(void);
+  off_t Seek(off_t Offset, int Whence);
+  ssize_t Read(void *Data, size_t Size);
+  ssize_t Write(const void *Data, size_t Size);
+  static cUnbufferedFile *Create(const char *FileName, int Flags, mode_t Mode = DEFFILEMODE);
+  };
+
 class cLockFile {
 private:
   char *fileName;