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-rw-r--r--apt-pkg/acquire-item.h25
1 files changed, 17 insertions, 8 deletions
diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h
index 4429b1ceb..fd01bbb9a 100644
--- 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 1.15 1999/01/31 22:25:34 jgg Exp $
+// $Id: acquire-item.h,v 1.16 1999/02/01 02:22:11 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.
##################################################################### */
/*}}}*/
@@ -33,11 +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:
@@ -57,14 +59,16 @@ class pkgAcquire::Item
// File to write the fetch into
string DestFile;
+ // Action members invoked by the worker
virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
virtual void Done(string Message,unsigned long Size,string Md5Hash);
virtual void Start(string Message,unsigned long Size);
+ virtual string Custom600Headers() {return string();};
+
+ // Inquire functions
virtual string MD5Sum() {return string();};
virtual string Describe() = 0;
-
- virtual string Custom600Headers() {return string();};
-
+
Item(pkgAcquire *Owner);
virtual ~Item();
};
@@ -81,6 +85,7 @@ class pkgAcqIndex : public pkgAcquire::Item
public:
+ // Specialized action members
virtual void Done(string Message,unsigned long Size,string Md5Hash);
virtual string Custom600Headers();
virtual string Describe();
@@ -98,6 +103,7 @@ class pkgAcqIndexRel : public pkgAcquire::Item
public:
+ // Specialized action members
virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
virtual void Done(string Message,unsigned long Size,string Md5Hash);
virtual string Custom600Headers();
@@ -111,6 +117,7 @@ class pkgAcqArchive : public pkgAcquire::Item
{
protected:
+ // State information for the retry mechanism
pkgCache::VerIterator Version;
pkgAcquire::ItemDesc Desc;
pkgSourceList *Sources;
@@ -119,15 +126,17 @@ class pkgAcqArchive : public pkgAcquire::Item
string &StoreFilename;
pkgCache::VerFileIterator Vf;
unsigned int Retries;
-
+
+ // Queue the next available file for download.
bool QueueNext();
public:
+ // Specialized action members
virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual string MD5Sum() {return MD5;};
virtual void Done(string Message,unsigned long Size,string Md5Hash);
virtual string Describe();
+ virtual string MD5Sum() {return MD5;};
pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
pkgRecords *Recs,pkgCache::VerIterator const &Version,