+ bool isDuplicate = false;
+ map_pointer_t DependencyData = 0;
+ map_pointer_t PreviousData = 0;
+ if (Pkg->RevDepends != 0)
+ {
+ pkgCache::Dependency const * const L = Cache.DepP + Pkg->RevDepends;
+ DependencyData = L->DependencyData;
+ do {
+ pkgCache::DependencyData const * const D = Cache.DepDataP + DependencyData;
+ if (Version > D->Version)
+ break;
+ if (D->Version == Version && D->Type == Type && D->CompareOp == Op)
+ {
+ isDuplicate = true;
+ break;
+ }
+ PreviousData = DependencyData;
+ DependencyData = D->NextData;
+ } while (DependencyData != 0);
+ }
+
+ if (isDuplicate == false)
+ {
+ DependencyData = AllocateInMap(sizeof(pkgCache::DependencyData));
+ if (unlikely(DependencyData == 0))
+ return false;
+ }
+
+ pkgCache::Dependency * Link = Cache.DepP + Dependency;
+ Link->ParentVer = Ver.Index();
+ Link->DependencyData = DependencyData;
+ Link->ID = Cache.HeaderP->DependsCount++;
+
+ pkgCache::DepIterator Dep(Cache, Link);
+ if (isDuplicate == false)
+ {
+ Dep->Type = Type;
+ Dep->CompareOp = Op;
+ Dep->Version = Version;
+ Dep->Package = Pkg.Index();
+ ++Cache.HeaderP->DependsDataCount;
+ if (PreviousData != 0)
+ {
+ pkgCache::DependencyData * const D = Cache.DepDataP + PreviousData;
+ Dep->NextData = D->NextData;
+ D->NextData = DependencyData;
+ }
+ else if (Pkg->RevDepends != 0)
+ {
+ pkgCache::Dependency const * const D = Cache.DepP + Pkg->RevDepends;
+ Dep->NextData = D->DependencyData;
+ }
+ }
+
+ if (isDuplicate == true || PreviousData != 0)
+ {
+ pkgCache::Dependency * const L = Cache.DepP + Pkg->RevDepends;
+ Link->NextRevDepends = L->NextRevDepends;
+ L->NextRevDepends = Dependency;
+ }
+ else
+ {
+ Link->NextRevDepends = Pkg->RevDepends;
+ Pkg->RevDepends = Dependency;
+ }