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<config.h>
  14
  15 #include <apt-pkg/pkgsystem.h>
  16 #include <cassert>
  17 #include <cstring>
  18                                                                         /*}}}*/
  19
  20 pkgSystem *_system = 0;
  21 static pkgSystem *SysList[10];
  22 pkgSystem **pkgSystem::GlobalList = SysList;
  23 unsigned long pkgSystem::GlobalListLen = 0;
  24
  25 // System::pkgSystem - Constructor                                      /*{{{*/
  26 // ---------------------------------------------------------------------
  27 /* Add it to the global list.. */
  28 pkgSystem::pkgSystem() : Label(NULL), VS(NULL)
  29 {
  30    assert(GlobalListLen < sizeof(SysList)/sizeof(*SysList));
  31    SysList[GlobalListLen] = this;
  32    ++GlobalListLen;
  33 }
  34                                                                         /*}}}*/
  35 // System::GetSystem - Get the named system                             /*{{{*/
  36 // ---------------------------------------------------------------------
  37 /* */
  38 pkgSystem *pkgSystem::GetSystem(const char *Label)
  39 {
  40    for (unsigned I = 0; I != GlobalListLen; I++)
  41       if (strcmp(SysList[I]->Label,Label) == 0)
  42          return SysList[I];
  43    return 0;
  44 }
  45                                                                         /*}}}*/