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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:00:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:00:48 +0000
commit851b6a097165af4d51c0db01b5e05256e5006896 (patch)
tree5f7c388ec894a7806c49a99f3bdb605d0b299a7c /apt-pkg/pkgsystem.cc
parentInitial commit. (diff)
downloadapt-851b6a097165af4d51c0db01b5e05256e5006896.tar.xz
apt-851b6a097165af4d51c0db01b5e05256e5006896.zip
Adding upstream version 2.6.1.upstream/2.6.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'apt-pkg/pkgsystem.cc')
-rw-r--r--apt-pkg/pkgsystem.cc72
1 files changed, 72 insertions, 0 deletions
diff --git a/apt-pkg/pkgsystem.cc b/apt-pkg/pkgsystem.cc
new file mode 100644
index 0000000..7e48a68
--- /dev/null
+++ b/apt-pkg/pkgsystem.cc
@@ -0,0 +1,72 @@
+// -*- 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;
+}
+ /*}}}*/
+// 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;
+}
+ /*}}}*/
+pkgSystem::~pkgSystem() {}