Support for memory-only caching

Author: jgg
Date: 1999-04-18 06:36:36 GMT
Support for memory-only caching

1 files changed, 48 insertions, 0 deletions

diff --git a/apt-pkg/cachefile.h b/apt-pkg/cachefile.h
new file mode 100644
index 000000000..23bd4008b
--- /dev/null
+++ b/apt-pkg/cachefile.h
@@ -0,0 +1,48 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: cachefile.h,v 1.1 1999/04/18 06:36:36 jgg Exp $
+/* ######################################################################
+   
+   CacheFile - Simple wrapper class for opening, generating and whatnot
+   
+   This class implements a simple 2 line mechanism to open various sorts
+   of caches. It can operate as root, as not root, show progress and so on,
+   it transparently handles everything necessary.
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef PKGLIB_CACHEFILE_H
+#define PKGLIB_CACHEFILE_H
+
+#ifdef __GNUG__
+#pragma interface "apt-pkg/cachefile.h"
+#endif 
+
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/dpkginit.h>
+
+class pkgCacheFile
+{
+   protected:
+   
+   MMap *Map;
+   pkgDepCache *Cache;
+   pkgDpkgLock *Lock;
+   
+   public:
+      
+   // We look pretty much exactly like a pointer to a dep cache
+   inline operator pkgDepCache &() {return *Cache;};
+   inline pkgDepCache *operator ->() {return Cache;};
+   inline pkgDepCache &operator *() {return *Cache;};
+
+   // Release the dpkg status lock
+   inline void ReleaseLock() {Lock->Close();};
+   
+   bool Open(OpProgress &Progress,bool WithLock = true);
+   
+   pkgCacheFile();
+   ~pkgCacheFile();
+};
+
+#endif