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 #include <cstring>
  17                                                                         /*}}}*/
  18
  19 pkgSystem *_system = 0;
  20 static pkgSystem *SysList[10];
  21 pkgSystem **pkgSystem::GlobalList = SysList;
  22 unsigned long pkgSystem::GlobalListLen = 0;
  23
  24 // System::pkgSystem - Constructor                                      /*{{{*/
  25 // ---------------------------------------------------------------------
  26 /* Add it to the global list.. */
  27 pkgSystem::pkgSystem()
  28 {
  29    assert(GlobalListLen < sizeof(SysList)/sizeof(*SysList));
  30    SysList[GlobalListLen] = this;
  31    GlobalListLen++;
  32 }
  33                                                                         /*}}}*/
  34 // System::GetSystem - Get the named system                             /*{{{*/
  35 // ---------------------------------------------------------------------
  36 /* */
  37 pkgSystem *pkgSystem::GetSystem(const char *Label)
  38 {
  39    for (unsigned I = 0; I != GlobalListLen; I++)
  40       if (strcmp(SysList[I]->Label,Label) == 0)
  41          return SysList[I];
  42    return 0;
  43 }
  44                                                                         /*}}}*/