// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ /* ###################################################################### System - Abstraction for running on different systems. Basic general structure.. ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include <config.h> #include <apt-pkg/debsystem.h> #include <apt-pkg/error.h> #include <apt-pkg/macros.h> #include <apt-pkg/pkgsystem.h> #include <cassert> #include <cstring> #include <map> /*}}}*/ pkgSystem *_system = 0; static pkgSystem *SysList[10]; pkgSystem **pkgSystem::GlobalList = SysList; unsigned long pkgSystem::GlobalListLen = 0; class APT_HIDDEN pkgSystemPrivate /*{{{*/ { public: typedef decltype(pkgCache::Version::ID) idtype; std::map<idtype,idtype> idmap; pkgSystemPrivate() {} }; /*}}}*/ // System::pkgSystem - Constructor /*{{{*/ // --------------------------------------------------------------------- /* Add it to the global list.. */ pkgSystem::pkgSystem(char const * const label, pkgVersioningSystem * const vs) : Label(label), VS(vs), d(new pkgSystemPrivate()) { assert(GlobalListLen < sizeof(SysList)/sizeof(*SysList)); SysList[GlobalListLen] = this; ++GlobalListLen; } /*}}}*/ // System::GetSystem - Get the named system /*{{{*/ // --------------------------------------------------------------------- /* */ APT_PURE pkgSystem *pkgSystem::GetSystem(const char *Label) { for (unsigned I = 0; I != GlobalListLen; I++) if (strcmp(SysList[I]->Label,Label) == 0) return SysList[I]; return 0; } /*}}}*/ bool pkgSystem::MultiArchSupported() const /*{{{*/ { debSystem const * const deb = dynamic_cast<debSystem const *>(this); if (deb != NULL) return deb->SupportsMultiArch(); return true; } /*}}}*/ std::vector<std::string> pkgSystem::ArchitecturesSupported() const /*{{{*/ { debSystem const * const deb = dynamic_cast<debSystem const *>(this); if (deb != NULL) return deb->SupportedArchitectures(); return {}; } /*}}}*/ // pkgSystem::Set/GetVersionMapping - for internal/external communication/*{{{*/ void pkgSystem::SetVersionMapping(map_id_t const in, map_id_t const out) { if (in == out) return; d->idmap.emplace(in, out); } map_id_t pkgSystem::GetVersionMapping(map_id_t const in) const { auto const o = d->idmap.find(in); return (o == d->idmap.end()) ? in : o->second; } /*}}}*/ bool pkgSystem::LockInner() /*{{{*/ { debSystem * const deb = dynamic_cast<debSystem *>(this); if (deb != NULL) return deb->LockInner(); return _error->Error("LockInner is not implemented"); } /*}}}*/ bool pkgSystem::UnLockInner(bool NoErrors) /*{{{*/ { debSystem * const deb = dynamic_cast<debSystem *>(this); if (deb != NULL) return deb->UnLockInner(NoErrors); return _error->Error("UnLockInner is not implemented"); } /*}}}*/ bool pkgSystem::IsLocked() /*{{{*/ { debSystem * const deb = dynamic_cast<debSystem *>(this); if (deb != NULL) return deb->IsLocked(); return true; } /*}}}*/ pkgSystem::~pkgSystem() {}