X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/7a1b1f8bd649113e99ecef0489e2f2194e283d1e..899d08fea9e10d617afaa42f51f4abda76fc508f:/apt-pkg/packagemanager.h

diff --git a/apt-pkg/packagemanager.h b/apt-pkg/packagemanager.h
index 5265c315c..f95b2ab56 100644
--- a/apt-pkg/packagemanager.h
+++ b/apt-pkg/packagemanager.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: packagemanager.h,v 1.7 1998/11/22 23:37:06 jgg Exp $
+// $Id: packagemanager.h,v 1.14 2001/05/07 04:24:08 jgg Exp $
 /* ######################################################################
 
    Package Manager - Abstacts the package manager
@@ -20,7 +20,6 @@
    
    ##################################################################### */
 									/*}}}*/
-// Header section: pkglib
 #ifndef PKGLIB_PACKAGEMANAGER_H
 #define PKGLIB_PACKAGEMANAGER_H
 
@@ -29,31 +28,31 @@
 #endif
 
 #include <string>
+#include <iostream>
 #include <apt-pkg/pkgcache.h>
+#include <apt-pkg/depcache.h>
+
+using std::string;
 
 class pkgAcquire;
 class pkgDepCache;
 class pkgSourceList;
 class pkgOrderList;
 class pkgRecords;
-class pkgPackageManager
+class pkgPackageManager : protected pkgCache::Namespace
 {
+   public:
+   
+   enum OrderResult {Completed,Failed,Incomplete};
+   
    protected:
    string *FileNames;
    pkgDepCache &Cache;
    pkgOrderList *List;
    bool Debug;
-   
-   // Bring some usefull types into the local scope
-   typedef pkgCache::PkgIterator PkgIterator;
-   typedef pkgCache::VerIterator VerIterator;
-   typedef pkgCache::DepIterator DepIterator;
-   typedef pkgCache::PrvIterator PrvIterator;
-   typedef pkgCache::Version Version;
-   typedef pkgCache::Package Package;
-      
+         
    bool DepAdd(pkgOrderList &Order,PkgIterator P,int Depth = 0);
-   bool OrderInstall();
+   virtual OrderResult OrderInstall();
    bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
    bool CreateOrderList();
    
@@ -67,21 +66,53 @@ class pkgPackageManager
    bool SmartRemove(PkgIterator Pkg);
    bool EarlyRemove(PkgIterator Pkg);   
    
-   // The Actuall installation implementation
+   // 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*/) {return false;};
-   virtual bool Go() {return true;};
-   
-   public:
+   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);
-   bool 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);
+   pkgPackageManager(pkgDepCache *Cache);
    virtual ~pkgPackageManager();
 };