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// -*- 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() {}
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