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

diff --git a/apt-pkg/cachefile.cc b/apt-pkg/cachefile.cc
index f852542e5aefca46ce7fec1297b3f11100044612..ed3c2dd0a538ae36db332850c6c666c3c193f7dd 100644 (file)
--- a/apt-pkg/cachefile.cc
+++ b/apt-pkg/cachefile.cc
@@ -21,17 +21,27 @@
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/policy.h>
 #include <apt-pkg/pkgsystem.h>
-#include <apt-pkg/acquire-item.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/progress.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/mmap.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <string.h>
+#include <unistd.h>
+#include <string>
+#include <vector>
 
 #include <apti18n.h>
                                                                        /*}}}*/
 // CacheFile::CacheFile - Constructor                                  /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgCacheFile::pkgCacheFile() : Map(NULL), Cache(NULL), DCache(NULL),
-                               SrcList(NULL), Policy(NULL)
+pkgCacheFile::pkgCacheFile() : d(NULL), ExternOwner(false), Map(NULL), Cache(NULL),
+                               DCache(NULL), SrcList(NULL), Policy(NULL)
+{
+}
+pkgCacheFile::pkgCacheFile(pkgDepCache * const Owner) : d(NULL), ExternOwner(true),
+   Map(&Owner->GetCache().GetMap()), Cache(&Owner->GetCache()),
+   DCache(Owner), SrcList(NULL), Policy(NULL)
 {
 }
                                                                        /*}}}*/
@@ -40,12 +50,16 @@ pkgCacheFile::pkgCacheFile() : Map(NULL), Cache(NULL), DCache(NULL),
 /* */
 pkgCacheFile::~pkgCacheFile()
 {
-   delete DCache;
+   if (ExternOwner == false)
+   {
+      delete DCache;
+      delete Cache;
+      delete Map;
+   }
    delete Policy;
    delete SrcList;
-   delete Cache;
-   delete Map;
-   _system->UnLock(true);
+   if (ExternOwner == false)
+      _system->UnLock(true);
 }
                                                                        /*}}}*/
 // CacheFile::BuildCaches - Open and build the cache files             /*{{{*/
@@ -58,8 +72,8 @@ bool pkgCacheFile::BuildCaches(OpProgress *Progress, bool WithLock)
 
    if (_config->FindB("pkgCacheFile::Generate", true) == false)
    {
-      Map = new MMap(*new FileFd(_config->FindFile("Dir::Cache::pkgcache"),
-                    FileFd::ReadOnly),MMap::Public|MMap::ReadOnly);
+      FileFd file(_config->FindFile("Dir::Cache::pkgcache"), FileFd::ReadOnly);
+      Map = new MMap(file, MMap::Public|MMap::ReadOnly);
       Cache = new pkgCache(Map);
       if (_error->PendingError() == true)
          return false;
@@ -99,7 +113,7 @@ bool pkgCacheFile::BuildCaches(OpProgress *Progress, bool WithLock)
 // CacheFile::BuildSourceList - Open and build all relevant sources.list/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool pkgCacheFile::BuildSourceList(OpProgress *Progress)
+bool pkgCacheFile::BuildSourceList(OpProgress * /*Progress*/)
 {
    if (SrcList != NULL)
       return true;
@@ -113,7 +127,7 @@ bool pkgCacheFile::BuildSourceList(OpProgress *Progress)
 // CacheFile::BuildPolicy - Open and build all relevant preferences    /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool pkgCacheFile::BuildPolicy(OpProgress *Progress)
+bool pkgCacheFile::BuildPolicy(OpProgress * /*Progress*/)
 {
    if (Policy != NULL)
       return true;
@@ -136,6 +150,9 @@ bool pkgCacheFile::BuildDepCache(OpProgress *Progress)
    if (DCache != NULL)
       return true;
 
+   if (BuildPolicy(Progress) == false)
+      return false;
+
    DCache = new pkgDepCache(Cache,Policy);
    if (_error->PendingError() == true)
       return false;
@@ -219,11 +236,16 @@ void pkgCacheFile::RemoveCaches()
 /* */
 void pkgCacheFile::Close()
 {
-   delete DCache;
+   if (ExternOwner == false)
+   {
+      delete DCache;
+      delete Cache;
+      delete Map;
+   }
+   else
+      ExternOwner = false;
    delete Policy;
-   delete Cache;
    delete SrcList;
-   delete Map;
    _system->UnLock(true);
 
    Map = NULL;