apt-pkg/pkgsystem.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: pkgsystem.cc,v 1.3 2004/02/27 00:43:16 mdz Exp $
   4 /* ######################################################################
   5
   6    System - Abstraction for running on different systems.
   7
   8    Basic general structure..
   9
  10    ##################################################################### */
  11                                                                         /*}}}*/
  12 // Include Files                                                        /*{{{*/
  13 #include <apt-pkg/pkgsystem.h>
  14 #include <apt-pkg/policy.h>
  15 #include <cassert>
  16                                                                         /*}}}*/
  17
  18 pkgSystem *_system = 0;
  19 static pkgSystem *SysList[10];
  20 pkgSystem **pkgSystem::GlobalList = SysList;
  21 unsigned long pkgSystem::GlobalListLen = 0;
  22
  23 // System::pkgSystem - Constructor                                      /*{{{*/
  24 // ---------------------------------------------------------------------
  25 /* Add it to the global list.. */
  26 pkgSystem::pkgSystem()
  27 {
  28    assert(GlobalListLen < sizeof(SysList)/sizeof(*SysList));
  29    SysList[GlobalListLen] = this;
  30    GlobalListLen++;
  31 }
  32                                                                         /*}}}*/
  33 // System::GetSystem - Get the named system                             /*{{{*/
  34 // ---------------------------------------------------------------------
  35 /* */
  36 pkgSystem *pkgSystem::GetSystem(const char *Label)
  37 {
  38    for (unsigned I = 0; I != GlobalListLen; I++)
  39       if (strcmp(SysList[I]->Label,Label) == 0)
  40          return SysList[I];
  41    return 0;
  42 }
  43                                                                         /*}}}*/