* use mark-and-sweep from aptitude now as GC algorithm

[apt.git] / apt-pkg / packagemanager.h

diff --git a/apt-pkg/packagemanager.h b/apt-pkg/packagemanager.h
index e46f8808b34397506b7c69ffb92846c517495342..da1f21e6ce90d6db3bb86b1a7d5fbd7b710c1db4 100644 (file)
--- a/apt-pkg/packagemanager.h
+++ b/apt-pkg/packagemanager.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: packagemanager.h,v 1.11 2001/02/20 07:03:17 jgg Exp $
+// $Id: packagemanager.h,v 1.14 2001/05/07 04:24:08 jgg Exp $
 /* ######################################################################
 
    Package Manager - Abstacts the package manager
@@ -29,6 +29,9 @@
 
 #include <string>
 #include <apt-pkg/pkgcache.h>
+#include <apt-pkg/depcache.h>
+
+using std::string;
 
 class pkgAcquire;
 class pkgDepCache;
@@ -48,7 +51,7 @@ class pkgPackageManager : protected pkgCache::Namespace
    bool Debug;
          
    bool DepAdd(pkgOrderList &Order,PkgIterator P,int Depth = 0);
-   OrderResult OrderInstall();
+   virtual OrderResult OrderInstall();
    bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
    bool CreateOrderList();
    
@@ -63,18 +66,49 @@ class pkgPackageManager : protected pkgCache::Namespace
    bool EarlyRemove(PkgIterator Pkg);   
    
    // The Actual installation implementation
-   virtual bool Install(PkgIterator Pkg,string File) {return false;};
-   virtual bool Configure(PkgIterator Pkg) {return false;};
-   virtual bool Remove(PkgIterator Pkg,bool Purge=false) {return false;};
-   virtual bool Go() {return true;};
+   virtual bool Install(PkgIterator /*Pkg*/,string /*File*/) {return false;};
+   virtual bool Configure(PkgIterator /*Pkg*/) {return false;};
+   virtual bool Remove(PkgIterator /*Pkg*/,bool /*Purge*/=false) {return false;};
+   virtual bool Go(int statusFd=-1) {return true;};
    virtual void Reset() {};
-   
+
+   // the result of the operation
+   OrderResult Res;
+
    public:
       
    // Main action members
    bool GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
                    pkgRecords *Recs);
-   OrderResult DoInstall();
+
+   // Do the installation 
+   OrderResult DoInstall() {
+      if(DoInstallPreFork() == Failed)
+        return Failed;
+
+      return DoInstallPostFork();
+   }
+
+   // stuff that needs to be done before the fork() of a library that
+   // uses apt
+   OrderResult DoInstallPreFork() {
+      Res = OrderInstall();
+      return Res;
+   };
+
+   // stuff that needs to be done after the fork
+   OrderResult DoInstallPostFork(int statusFd=-1) {
+      bool goResult = Go(statusFd);
+      if(goResult == false) 
+        return Failed;
+      
+      // if all was fine update the state file
+      if(Res == Completed)
+        Cache.writeStateFile(NULL);
+
+      return Res;
+   };
+
    bool FixMissing();
    
    pkgPackageManager(pkgDepCache *Cache);