if reading of autobit state failed, let write fail

[apt.git] / apt-pkg / cachefile.h

diff --git a/apt-pkg/cachefile.h b/apt-pkg/cachefile.h
index e2414446e17bd61064d14898d9288b50c59802bd..e23f37675ef9461f254324b83853b89015569e59 100644 (file)
--- a/apt-pkg/cachefile.h
+++ b/apt-pkg/cachefile.h
@@ -1,6 +1,5 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: cachefile.h,v 1.3 1999/06/27 03:18:28 jgg Exp $
 /* ######################################################################
    
    CacheFile - Simple wrapper class for opening, generating and whatnot
@@ -9,43 +8,88 @@
    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
 
-#ifdef __GNUG__
-#pragma interface "apt-pkg/cachefile.h"
-#endif 
+#include <stddef.h>
 
 #include <apt-pkg/depcache.h>
-#include <apt-pkg/dpkginit.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#ifndef APT_8_CLEANER_HEADERS
+#include <apt-pkg/acquire.h>
+#include <apt-pkg/policy.h>
+#include <apt-pkg/sourcelist.h>
+#endif
+
+class MMap;
+class pkgPolicy;
+class pkgSourceList;
+class pkgIndexFile;
+class OpProgress;
 
 class pkgCacheFile
 {
+   /** \brief dpointer placeholder (for later in case we need it) */
+   void * const d;
+   bool ExternOwner;
+
    protected:
-   
    MMap *Map;
-   pkgDepCache *Cache;
-   pkgDpkgLock *Lock;
-   
+   pkgCache *Cache;
+   pkgDepCache *DCache;
+   pkgSourceList *SrcList;
+
    public:
-      
+   pkgPolicy *Policy;
+
    // We look pretty much exactly like a pointer to a dep cache
-   inline operator pkgDepCache &() {return *Cache;};
-   inline operator pkgDepCache *() {return Cache;};
-   inline pkgDepCache *operator ->() {return Cache;};
-   inline pkgDepCache &operator *() {return *Cache;};
-   inline pkgDepCache::StateCache &operator [](pkgCache::PkgIterator const &I) {return (*Cache)[I];};
-   inline unsigned char &operator [](pkgCache::DepIterator const &I) {return (*Cache)[I];};
-
-   // Release the dpkg status lock
-   inline void ReleaseLock() {Lock->Close();};
-   
-   bool Open(OpProgress &Progress,bool WithLock = true);
-   
+   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);
+   APT_DEPRECATED_MSG("Pass Progress in as a pointer") bool BuildCaches(OpProgress &Progress,bool const &WithLock = true) { return BuildCaches(&Progress, WithLock); };
+   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); };
+   APT_DEPRECATED_MSG("Pass Progress in as a pointer") bool Open(OpProgress &Progress,bool const &WithLock = true) { return Open(&Progress, WithLock); };
+   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();
-   ~pkgCacheFile();
+   explicit pkgCacheFile(pkgDepCache * const Owner);
+   virtual ~pkgCacheFile();
 };
 
 #endif