From 959470da73e7dc325321bb5024f1fd6d24bd9e9b Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Wed, 6 Apr 2011 16:47:58 +0200
Subject: * apt-pkg/pkgcache.cc:   - use the native Architecture stored in the
 cache header instead of     loading it from configuration as suggested by
 Julian Andres Klode

---
 apt-pkg/pkgcache.cc    | 11 ++++++-----
 apt-pkg/pkgcache.h     |  6 ++++++
 apt-pkg/pkgcachegen.cc |  5 +++--
 3 files changed, 15 insertions(+), 7 deletions(-)

(limited to 'apt-pkg')

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index c16005e38..b63900adb 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -231,7 +231,7 @@ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
 pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) {
 	if (MultiArchCache() == false) {
 		if (Arch == "native" || Arch == "all" || Arch == "any" ||
-		    Arch == _config->Find("APT::Architecture"))
+		    Arch == NativeArch())
 			return SingleArchFindPkg(Name);
 		else
 			return PkgIterator(*this,0);
@@ -325,15 +325,15 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
 	if (Arch == "any")
 		return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
 
-	static string const myArch = _config->Find("APT::Architecture");
+	char const* const myArch = Owner->NativeArch();
 	/* Most of the time the package for our native architecture is
 	   the one we add at first to the cache, but this would be the
 	   last one we check, so we do it now. */
 	if (Arch == "native" || Arch == myArch || Arch == "all") {
-		Arch = myArch;
 		pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
-		if (stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+		if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
 			return PkgIterator(*Owner, Pkg);
+		Arch = myArch;
 	}
 
 	/* Iterate over the list to find the matching arch
@@ -506,7 +506,8 @@ std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
 {
    string fullname = Name();
    if (Pretty == false ||
-       (strcmp(Arch(), "all") != 0 && _config->Find("APT::Architecture") != Arch()))
+       (strcmp(Arch(), "all") != 0 &&
+	strcmp(Owner->NativeArch(), Arch()) != 0))
       return fullname.append(":").append(Arch());
    return fullname;
 }
diff --git a/apt-pkg/pkgcache.h b/apt-pkg/pkgcache.h
index d654a2976..1b1743724 100644
--- a/apt-pkg/pkgcache.h
+++ b/apt-pkg/pkgcache.h
@@ -215,6 +215,7 @@ class pkgCache								/*{{{*/
 private:
    bool MultiArchEnabled;
    PkgIterator SingleArchFindPkg(const string &Name);
+   inline char const * const NativeArch() const;
 };
 									/*}}}*/
 // Header structure							/*{{{*/
@@ -649,6 +650,11 @@ struct pkgCache::StringItem
    map_ptrloc NextItem;      // StringItem
 };
 									/*}}}*/
+
+
+inline char const * const pkgCache::NativeArch() const
+	{ return StrP + HeaderP->Architecture; };
+
 #include <apt-pkg/cacheiterators.h>
 
 inline pkgCache::GrpIterator pkgCache::GrpBegin() 
diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc
index b0ee04554..9820fde81 100644
--- a/apt-pkg/pkgcachegen.cc
+++ b/apt-pkg/pkgcachegen.cc
@@ -479,7 +479,8 @@ bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name
    // Set the name, arch and the ID
    Pkg->Name = Grp->Name;
    Pkg->Group = Grp.Index();
-   map_ptrloc const idxArch = WriteUniqString((Arch == "all") ? _config->Find("APT::Architecture") : Arch.c_str());
+   // all is mapped to the native architecture
+   map_ptrloc const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : WriteUniqString(Arch.c_str());
    if (unlikely(idxArch == 0))
       return false;
    Pkg->Arch = idxArch;
@@ -783,7 +784,7 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver,
 
    // We do not add self referencing provides
    if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() ||
-	(PkgArch == "all" && _config->Find("APT::Architecture") == Ver.ParentPkg().Arch())))
+	(PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0)))
       return true;
    
    // Get a structure
-- 
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