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[ntk/apt.git] / apt-pkg / acquire-item.h

diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h
index 676766d..3d41197 100644 (file)
--- a/apt-pkg/acquire-item.h
+++ b/apt-pkg/acquire-item.h
@@ -1,19 +1,19 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: acquire-item.h,v 1.13 1999/01/30 06:07:24 jgg Exp $
+// $Id: acquire-item.h,v 1.25 2001/02/20 07:03:17 jgg Exp $
 /* ######################################################################
 
    Acquire Item - Item to acquire
 
    When an item is instantiated it will add it self to the local list in
    the Owner Acquire class. Derived classes will then call QueueURI to 
-   register all the URI's they wish to fetch for at the initial moment.   
+   register all the URI's they wish to fetch at the initial moment.   
    
    Two item classes are provided to provide functionality for downloading
    of Index files and downloading of Packages.
    
    A Archive class is provided for downloading .deb files. It does Md5
-   checking and source location.
+   checking and source location as well as a retry algorithm.
    
    ##################################################################### */
                                                                        /*}}}*/
@@ -21,7 +21,7 @@
 #define PKGLIB_ACQUIRE_ITEM_H
 
 #include <apt-pkg/acquire.h>
-#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/indexfile.h>
 #include <apt-pkg/pkgrecords.h>
 
 #ifdef __GNUG__
@@ -33,10 +33,13 @@ class pkgAcquire::Item
 {  
    protected:
    
+   // Some private helper methods for registering URIs
    pkgAcquire *Owner;
    inline void QueueURI(ItemDesc &Item)
                  {Owner->Enqueue(Item);};
+   inline void Dequeue() {Owner->Dequeue(this);};
    
+   // Safe rename function with timestamp preservation
    void Rename(string From,string To);
    
    public:
@@ -45,7 +48,8 @@ class pkgAcquire::Item
    enum {StatIdle, StatFetching, StatDone, StatError} Status;
    string ErrorText;
    unsigned long FileSize;
-   char *Mode;
+   unsigned long PartialSize;   
+   const char *Mode;
    unsigned long ID;
    bool Complete;
    bool Local;
@@ -55,15 +59,20 @@ class pkgAcquire::Item
    
    // File to write the fetch into
    string DestFile;
-   
-   virtual void Failed(string Message);
-   virtual void Done(string Message,unsigned long Size,string Md5Hash);
+
+   // Action members invoked by the worker
+   virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
+   virtual void Done(string Message,unsigned long Size,string Md5Hash,
+                    pkgAcquire::MethodConfig *Cnf);
    virtual void Start(string Message,unsigned long Size);
+   virtual string Custom600Headers() {return string();};
+   virtual string DescURI() = 0;
+   virtual void Finished() {};
+   
+   // Inquire functions
    virtual string MD5Sum() {return string();};
-   virtual string Describe() = 0;
+   pkgAcquire *GetOwner() {return Owner;};
    
-   virtual string Custom600Headers() {return string();};
-      
    Item(pkgAcquire *Owner);
    virtual ~Item();
 };
@@ -73,18 +82,21 @@ class pkgAcqIndex : public pkgAcquire::Item
 {
    protected:
    
-   const pkgSourceList::Item *Location;
    bool Decompression;
    bool Erase;
    pkgAcquire::ItemDesc Desc;
+   string RealURI;
    
    public:
    
-   virtual void Done(string Message,unsigned long Size,string Md5Hash);   
+   // Specialized action members
+   virtual void Done(string Message,unsigned long Size,string Md5Hash,
+                    pkgAcquire::MethodConfig *Cnf);
    virtual string Custom600Headers();
-   virtual string Describe();
+   virtual string DescURI() {return RealURI;};
 
-   pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location);
+   pkgAcqIndex(pkgAcquire *Owner,string URI,string URIDesc,
+              string ShortDesct);
 };
 
 // Item class for index files
@@ -92,16 +104,20 @@ class pkgAcqIndexRel : public pkgAcquire::Item
 {
    protected:
    
-   const pkgSourceList::Item *Location;
    pkgAcquire::ItemDesc Desc;
+   string RealURI;
    
    public:
    
-   virtual void Done(string Message,unsigned long Size,string Md5Hash);   
+   // Specialized action members
+   virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
+   virtual void Done(string Message,unsigned long Size,string Md5Hash,
+                    pkgAcquire::MethodConfig *Cnf);   
    virtual string Custom600Headers();
-   virtual string Describe();
+   virtual string DescURI() {return RealURI;};
    
-   pkgAcqIndexRel(pkgAcquire *Owner,const pkgSourceList::Item *Location);
+   pkgAcqIndexRel(pkgAcquire *Owner,string URI,string URIDesc,
+              string ShortDesct);
 };
 
 // Item class for archive files
@@ -109,6 +125,7 @@ class pkgAcqArchive : public pkgAcquire::Item
 {
    protected:
    
+   // State information for the retry mechanism
    pkgCache::VerIterator Version;
    pkgAcquire::ItemDesc Desc;
    pkgSourceList *Sources;
@@ -116,19 +133,44 @@ class pkgAcqArchive : public pkgAcquire::Item
    string MD5;
    string &StoreFilename;
    pkgCache::VerFileIterator Vf;
-   
+   unsigned int Retries;
+
+   // Queue the next available file for download.
    bool QueueNext();
    
    public:
    
-   virtual void Failed(string Message);
+   // Specialized action members
+   virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
+   virtual void Done(string Message,unsigned long Size,string Md5Hash,
+                    pkgAcquire::MethodConfig *Cnf);
    virtual string MD5Sum() {return MD5;};
-   virtual void Done(string Message,unsigned long Size,string Md5Hash);
-   virtual string Describe();
+   virtual string DescURI() {return Desc.URI;};
+   virtual void Finished();
    
    pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
                 pkgRecords *Recs,pkgCache::VerIterator const &Version,
                 string &StoreFilename);
 };
 
+// Fetch a generic file to the current directory
+class pkgAcqFile : public pkgAcquire::Item
+{
+   pkgAcquire::ItemDesc Desc;
+   string Md5Hash;
+   unsigned int Retries;
+   
+   public:
+   
+   // Specialized action members
+   virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
+   virtual void Done(string Message,unsigned long Size,string Md5Hash,
+                    pkgAcquire::MethodConfig *Cnf);
+   virtual string MD5Sum() {return Md5Hash;};
+   virtual string DescURI() {return Desc.URI;};
+   
+   pkgAcqFile(pkgAcquire *Owner,string URI,string MD5,unsigned long Size,
+                 string Desc,string ShortDesc);
+};
+
 #endif