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authorJulian Andres Klode <jak@debian.org>2016-05-10 18:32:06 +0200
committerJulian Andres Klode <jak@debian.org>2016-05-10 18:32:06 +0200
commita9c2517e9ce961a761022dfa8eb0b62f68f5df9e (patch)
treea60d49072c2b29d0d582b9b9e384932e48e67921 /apt-private/private-cacheset.h
parent33190fe3d3c200dcd417cd336f9db11f5f4408d5 (diff)
parent326a2ecfa9c6fa9d6941d7133e698510d7355ded (diff)
Merge pull request julian-klode/apt#3 from adrian17/master
Improve GetLocalitySortedVersionSet, speeds up apt search by 30%
Diffstat (limited to 'apt-private/private-cacheset.h')
-rw-r--r--apt-private/private-cacheset.h29
1 files changed, 20 insertions, 9 deletions
diff --git a/apt-private/private-cacheset.h b/apt-private/private-cacheset.h
index 0f7430fa0..4a43155fe 100644
--- a/apt-private/private-cacheset.h
+++ b/apt-private/private-cacheset.h
@@ -15,17 +15,28 @@
class OpProgress;
+class VerIteratorWithCaching
+{
+ const pkgCache::VerIterator iter;
+ const pkgCache::DescFile * descFile;
+public:
+ VerIteratorWithCaching(const pkgCache::VerIterator& iter) :
+ iter(iter),
+ descFile(iter->DescriptionList != 0
+ ? (const pkgCache::DescFile *) iter.TranslatedDescription().FileList()
+ : nullptr)
+ {}
+ const pkgCache::DescFile * CachedDescFile() const { return descFile; }
+ operator pkgCache::VerIterator() const { return iter; }
+};
+
struct VersionSortDescriptionLocality /*{{{*/
{
- bool operator () (const pkgCache::VerIterator &v_lhs,
- const pkgCache::VerIterator &v_rhs)
+ bool operator () (const VerIteratorWithCaching &v_lhs,
+ const VerIteratorWithCaching &v_rhs)
{
- pkgCache::DescFile const *A = nullptr;
- pkgCache::DescFile const *B = nullptr;
- if (v_lhs->DescriptionList != 0)
- A = v_lhs.TranslatedDescription().FileList();
- if (v_rhs->DescriptionList != 0)
- B = v_rhs.TranslatedDescription().FileList();
+ pkgCache::DescFile const *A = v_lhs.CachedDescFile();
+ pkgCache::DescFile const *B = v_rhs.CachedDescFile();
if (A == nullptr && B == nullptr)
return false;
@@ -45,7 +56,7 @@ struct VersionSortDescriptionLocality /*{{{*/
/*}}}*/
// sorted by locality which makes iterating much faster
typedef APT::VersionContainer<
- std::set<pkgCache::VerIterator,
+ std::set<VerIteratorWithCaching,
VersionSortDescriptionLocality> > LocalitySortedVersionSet;
class Matcher {