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-rw-r--r--apt-pkg/cachefile.h90
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diff --git a/apt-pkg/cachefile.h b/apt-pkg/cachefile.h
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+// -*- 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);
+ // Starts DepCache with a claim of one ActionGroup already active
+ void InhibitActionGroups(bool yes);
+
+ 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