1 files changed, 88 insertions, 0 deletions
diff --git a/apt-pkg/cachefile.h b/apt-pkg/cachefile.h
new file mode 100644
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--- /dev/null
+++ b/apt-pkg/cachefile.h
@@ -0,0 +1,88 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+   
+   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.
+   
+   This means it can rebuild caches from the source list and instantiates
+   and prepares the standard policy mechanism.
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef PKGLIB_CACHEFILE_H
+#define PKGLIB_CACHEFILE_H
+
+#include <stddef.h>
+
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+
+
+class MMap;
+class pkgPolicy;
+class pkgSourceList;
+class pkgIndexFile;
+class OpProgress;
+
+class APT_PUBLIC pkgCacheFile
+{
+   struct Private;
+   /** \brief dpointer placeholder (for later in case we need it) */
+   Private *const d;
+   bool ExternOwner;
+
+   protected:
+   MMap *Map;
+   pkgCache *Cache;
+   pkgDepCache *DCache;
+   pkgSourceList *SrcList;
+
+   public:
+   pkgPolicy *Policy;
+
+   // We look pretty much exactly like a pointer to a dep cache
+   inline operator pkgCache &() const {return *Cache;};
+   inline operator pkgCache *() const {return Cache;};
+   inline operator pkgDepCache &() const {return *DCache;};
+   inline operator pkgDepCache *() const {return DCache;};
+   inline operator pkgPolicy &() const {return *Policy;};
+   inline operator pkgPolicy *() const {return Policy;};
+   inline operator pkgSourceList &() const {return *SrcList;};
+   inline operator pkgSourceList *() const {return SrcList;};
+   inline pkgDepCache *operator ->() const {return DCache;};
+   inline pkgDepCache &operator *() const {return *DCache;};
+   inline pkgDepCache::StateCache &operator [](pkgCache::PkgIterator const &I) const {return (*DCache)[I];};
+   inline unsigned char &operator [](pkgCache::DepIterator const &I) const {return (*DCache)[I];};
+
+   bool BuildCaches(OpProgress *Progress = NULL,bool WithLock = true);
+   bool BuildSourceList(OpProgress *Progress = NULL);
+   bool BuildPolicy(OpProgress *Progress = NULL);
+   bool BuildDepCache(OpProgress *Progress = NULL);
+   bool Open(OpProgress *Progress = NULL, bool WithLock = true);
+   inline bool ReadOnlyOpen(OpProgress *Progress = NULL) { return Open(Progress, false); };
+   static void RemoveCaches();
+   void Close();
+
+   bool AddIndexFile(pkgIndexFile * const File);
+
+   inline pkgCache* GetPkgCache() { BuildCaches(NULL, false); return Cache; };
+   inline pkgDepCache* GetDepCache() { BuildDepCache(); return DCache; };
+   inline pkgPolicy* GetPolicy() { BuildPolicy(); return Policy; };
+   inline pkgSourceList* GetSourceList() { BuildSourceList(); return SrcList; };
+
+   inline bool IsPkgCacheBuilt() const { return (Cache != NULL); };
+   inline bool IsDepCacheBuilt() const { return (DCache != NULL); };
+   inline bool IsPolicyBuilt() const { return (Policy != NULL); };
+   inline bool IsSrcListBuilt() const { return (SrcList != NULL); };
+
+   pkgCacheFile();
+   explicit pkgCacheFile(pkgDepCache * const Owner);
+   virtual ~pkgCacheFile();
+};
+
+#endif