]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/acquire.cc
* Install-Reason -> Auto-Installed in pkgstates
[apt.git] / apt-pkg / acquire.cc
index 91b2a7590e1fd77e041772797abe610ff1c19197..70dce4f540a4ac23e047cd1e855cf4840cb01fca 100644 (file)
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: acquire.cc,v 1.7 1998/11/01 05:27:34 jgg Exp $
+// $Id: acquire.cc,v 1.50 2004/03/17 05:17:11 mdz Exp $
 /* ######################################################################
 
    Acquire - File Acquiration
 #include <apt-pkg/acquire-worker.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/error.h>
-#include <strutl.h>
+#include <apt-pkg/strutl.h>
+
+#include <apti18n.h>
+
+#include <iostream>
+    
+#include <dirent.h>
+#include <sys/time.h>
+#include <errno.h>
+#include <sys/stat.h>
                                                                        /*}}}*/
 
+using namespace std;
+
 // Acquire::pkgAcquire - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* We grab some runtime state from the configuration space */
-pkgAcquire::pkgAcquire()
+pkgAcquire::pkgAcquire(pkgAcquireStatus *Log) : Log(Log)
 {
    Queues = 0;
    Configs = 0;
@@ -42,6 +53,17 @@ pkgAcquire::pkgAcquire()
       QueueMode = QueueAccess;   
 
    Debug = _config->FindB("Debug::pkgAcquire",false);
+   
+   // This is really a stupid place for this
+   struct stat St;
+   if (stat((_config->FindDir("Dir::State::lists") + "partial/").c_str(),&St) != 0 ||
+       S_ISDIR(St.st_mode) == 0)
+      _error->Error(_("Lists directory %spartial is missing."),
+                   _config->FindDir("Dir::State::lists").c_str());
+   if (stat((_config->FindDir("Dir::Cache::Archives") + "partial/").c_str(),&St) != 0 ||
+       S_ISDIR(St.st_mode) == 0)
+      _error->Error(_("Archive directory %spartial is missing."),
+                   _config->FindDir("Dir::Cache::Archives").c_str());
 }
                                                                        /*}}}*/
 // Acquire::~pkgAcquire        - Destructor                                    /*{{{*/
@@ -49,15 +71,27 @@ pkgAcquire::pkgAcquire()
 /* Free our memory, clean up the queues (destroy the workers) */
 pkgAcquire::~pkgAcquire()
 {
-   while (Items.size() != 0)
-      delete Items[0];
-
+   Shutdown();
+   
    while (Configs != 0)
    {
       MethodConfig *Jnk = Configs;
       Configs = Configs->Next;
       delete Jnk;
    }   
+}
+                                                                       /*}}}*/
+// Acquire::Shutdown - Clean out the acquire object                    /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcquire::Shutdown()
+{
+   while (Items.size() != 0)
+   {
+      if (Items[0]->Status == Item::StatFetching)
+         Items[0]->Status = Item::StatError;
+      delete Items[0];
+   }
 
    while (Queues != 0)
    {
@@ -81,11 +115,18 @@ void pkgAcquire::Add(Item *Itm)
 /* Remove an item from the acquire list. This is usually not used.. */
 void pkgAcquire::Remove(Item *Itm)
 {
-   for (vector<Item *>::iterator I = Items.begin(); I < Items.end(); I++)
+   Dequeue(Itm);
+   
+   for (ItemIterator I = Items.begin(); I != Items.end();)
    {
       if (*I == Itm)
+      {
         Items.erase(I);
-   }   
+        I = Items.begin();
+      }      
+      else 
+        I++;
+   }
 }
                                                                        /*}}}*/
 // Acquire::Add - Add a worker                                         /*{{{*/
@@ -121,13 +162,14 @@ void pkgAcquire::Remove(Worker *Work)
 // Acquire::Enqueue - Queue an URI for fetching                                /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the entry point for an item. An item calls this function when
-   it is construction which creates a queue (based on the current queue
+   it is constructed which creates a queue (based on the current queue
    mode) and puts the item in that queue. If the system is running then
    the queue might be started. */
-void pkgAcquire::Enqueue(Item *Itm,string URI,string Description)
+void pkgAcquire::Enqueue(ItemDesc &Item)
 {
    // Determine which queue to put the item in
-   string Name = QueueName(URI);
+   const MethodConfig *Config;
+   string Name = QueueName(Item.URI,Config);
    if (Name.empty() == true)
       return;
 
@@ -143,17 +185,22 @@ void pkgAcquire::Enqueue(Item *Itm,string URI,string Description)
       if (Running == true)
         I->Startup();
    }
+
+   // See if this is a local only URI
+   if (Config->LocalOnly == true && Item.Owner->Complete == false)
+      Item.Owner->Local = true;
+   Item.Owner->Status = Item::StatIdle;
    
    // Queue it into the named queue
-   I->Enqueue(Itm,URI,Description);
+   I->Enqueue(Item);
    ToFetch++;
          
    // Some trace stuff
    if (Debug == true)
    {
-      clog << "Fetching " << URI << endl;
-      clog << " to " << Itm->DestFile << endl;
-      clog << " Queue is: " << QueueName(URI) << endl;
+      clog << "Fetching " << Item.URI << endl;
+      clog << " to " << Item.Owner->DestFile << endl;
+      clog << " Queue is: " << Name << endl;
    }
 }
                                                                        /*}}}*/
@@ -164,12 +211,14 @@ void pkgAcquire::Enqueue(Item *Itm,string URI,string Description)
 void pkgAcquire::Dequeue(Item *Itm)
 {
    Queue *I = Queues;
+   bool Res = false;
    for (; I != 0; I = I->Next)
-      I->Dequeue(Itm);
+      Res |= I->Dequeue(Itm);
    
    if (Debug == true)
       clog << "Dequeuing " << Itm->DestFile << endl;
-   ToFetch--;
+   if (Res == true)
+      ToFetch--;
 }
                                                                        /*}}}*/
 // Acquire::QueueName - Return the name of the queue for this URI      /*{{{*/
@@ -177,18 +226,18 @@ void pkgAcquire::Dequeue(Item *Itm)
 /* The string returned depends on the configuration settings and the
    method parameters. Given something like http://foo.org/bar it can
    return http://foo.org or http */
-string pkgAcquire::QueueName(string Uri)
+string pkgAcquire::QueueName(string Uri,MethodConfig const *&Config)
 {
    URI U(Uri);
    
-   const MethodConfig *Config = GetConfig(U.Access);
+   Config = GetConfig(U.Access);
    if (Config == 0)
       return string();
    
    /* Single-Instance methods get exactly one queue per URI. This is
       also used for the Access queue method  */
    if (Config->SingleInstance == true || QueueMode == QueueAccess)
-      return U.Access;
+       return U.Access;
 
    return U.Access + ':' + U.Host;
 }
@@ -263,14 +312,22 @@ void pkgAcquire::RunFds(fd_set *RSet,fd_set *WSet)
 /* This runs the queues. It manages a select loop for all of the
    Worker tasks. The workers interact with the queues and items to
    manage the actual fetch. */
-bool pkgAcquire::Run()
+pkgAcquire::RunResult pkgAcquire::Run(int PulseIntervall)
 {
    Running = true;
    
    for (Queue *I = Queues; I != 0; I = I->Next)
       I->Startup();
    
+   if (Log != 0)
+      Log->Start();
+   
+   bool WasCancelled = false;
+
    // Run till all things have been acquired
+   struct timeval tv;
+   tv.tv_sec = 0;
+   tv.tv_usec = PulseIntervall; 
    while (ToFetch > 0)
    {
       fd_set RFds;
@@ -280,23 +337,54 @@ bool pkgAcquire::Run()
       FD_ZERO(&WFds);
       SetFds(Highest,&RFds,&WFds);
       
-      if (select(Highest+1,&RFds,&WFds,0,0) <= 0)
+      int Res;
+      do
+      {
+        Res = select(Highest+1,&RFds,&WFds,0,&tv);
+      }
+      while (Res < 0 && errno == EINTR);
+      
+      if (Res < 0)
       {
-        Running = false;
-        return _error->Errno("select","Select has failed");
+        _error->Errno("select","Select has failed");
+        break;
       }
             
       RunFds(&RFds,&WFds);
       if (_error->PendingError() == true)
         break;
+      
+      // Timeout, notify the log class
+      if (Res == 0 || (Log != 0 && Log->Update == true))
+      {
+        tv.tv_usec = PulseIntervall;
+        for (Worker *I = Workers; I != 0; I = I->NextAcquire)
+           I->Pulse();
+        if (Log != 0 && Log->Pulse(this) == false)
+        {
+           WasCancelled = true;
+           break;
+        }
+      }      
    }   
 
+   if (Log != 0)
+      Log->Stop();
+   
    // Shut down the acquire bits
    Running = false;
    for (Queue *I = Queues; I != 0; I = I->Next)
-      I->Shutdown();
+      I->Shutdown(false);
 
-   return _error->PendingError();
+   // Shut down the items
+   for (ItemIterator I = Items.begin(); I != Items.end(); I++)
+      (*I)->Finished(); 
+   
+   if (_error->PendingError())
+      return Failed;
+   if (WasCancelled)
+      return Cancelled;
+   return Continue;
 }
                                                                        /*}}}*/
 // Acquire::Bump - Called when an item is dequeued                     /*{{{*/
@@ -309,6 +397,107 @@ void pkgAcquire::Bump()
       I->Bump();
 }
                                                                        /*}}}*/
+// Acquire::WorkerStep - Step to the next worker                       /*{{{*/
+// ---------------------------------------------------------------------
+/* Not inlined to advoid including acquire-worker.h */
+pkgAcquire::Worker *pkgAcquire::WorkerStep(Worker *I)
+{
+   return I->NextAcquire;
+};
+                                                                       /*}}}*/
+// Acquire::Clean - Cleans a directory                                 /*{{{*/
+// ---------------------------------------------------------------------
+/* This is a bit simplistic, it looks at every file in the dir and sees
+   if it is part of the download set. */
+bool pkgAcquire::Clean(string Dir)
+{
+   DIR *D = opendir(Dir.c_str());   
+   if (D == 0)
+      return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
+   
+   string StartDir = SafeGetCWD();
+   if (chdir(Dir.c_str()) != 0)
+   {
+      closedir(D);
+      return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
+   }
+   
+   for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
+   {
+      // Skip some files..
+      if (strcmp(Dir->d_name,"lock") == 0 ||
+         strcmp(Dir->d_name,"partial") == 0 ||
+         strcmp(Dir->d_name,".") == 0 ||
+         strcmp(Dir->d_name,"..") == 0)
+        continue;
+      
+      // Look in the get list
+      ItemCIterator I = Items.begin();
+      for (; I != Items.end(); I++)
+        if (flNotDir((*I)->DestFile) == Dir->d_name)
+           break;
+      
+      // Nothing found, nuke it
+      if (I == Items.end())
+        unlink(Dir->d_name);
+   };
+   
+   chdir(StartDir.c_str());
+   closedir(D);
+   return true;   
+}
+                                                                       /*}}}*/
+// Acquire::TotalNeeded - Number of bytes to fetch                     /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the total number of bytes needed */
+double pkgAcquire::TotalNeeded()
+{
+   double Total = 0;
+   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); I++)
+      Total += (*I)->FileSize;
+   return Total;
+}
+                                                                       /*}}}*/
+// Acquire::FetchNeeded - Number of bytes needed to get                        /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the number of bytes that is not local */
+double pkgAcquire::FetchNeeded()
+{
+   double Total = 0;
+   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); I++)
+      if ((*I)->Local == false)
+        Total += (*I)->FileSize;
+   return Total;
+}
+                                                                       /*}}}*/
+// Acquire::PartialPresent - Number of partial bytes we already have   /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the number of bytes that is not local */
+double pkgAcquire::PartialPresent()
+{
+  double Total = 0;
+   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); I++)
+      if ((*I)->Local == false)
+        Total += (*I)->PartialSize;
+   return Total;
+}
+
+// Acquire::UriBegin - Start iterator for the uri list                 /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgAcquire::UriIterator pkgAcquire::UriBegin()
+{
+   return UriIterator(Queues);
+}
+                                                                       /*}}}*/
+// Acquire::UriEnd - End iterator for the uri list                     /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgAcquire::UriIterator pkgAcquire::UriEnd()
+{
+   return UriIterator(0);
+}
+                                                                       /*}}}*/
 
 // Acquire::MethodConfig::MethodConfig - Constructor                   /*{{{*/
 // ---------------------------------------------------------------------
@@ -316,9 +505,10 @@ void pkgAcquire::Bump()
 pkgAcquire::MethodConfig::MethodConfig()
 {
    SingleInstance = false;
-   PreScan = false;
    Pipeline = false;
    SendConfig = false;
+   LocalOnly = false;
+   Removable = false;
    Next = 0;
 }
                                                                        /*}}}*/
@@ -332,6 +522,8 @@ pkgAcquire::Queue::Queue(string Name,pkgAcquire *Owner) : Name(Name),
    Items = 0;
    Next = 0;
    Workers = 0;
+   MaxPipeDepth = 1;
+   PipeDepth = 0;
 }
                                                                        /*}}}*/
 // Queue::~Queue - Destructor                                          /*{{{*/
@@ -339,7 +531,7 @@ pkgAcquire::Queue::Queue(string Name,pkgAcquire *Owner) : Name(Name),
 /* */
 pkgAcquire::Queue::~Queue()
 {
-   Shutdown();
+   Shutdown(true);
    
    while (Items != 0)
    {
@@ -352,28 +544,32 @@ pkgAcquire::Queue::~Queue()
 // Queue::Enqueue - Queue an item to the queue                         /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void pkgAcquire::Queue::Enqueue(Item *Owner,string URI,string Description)
+void pkgAcquire::Queue::Enqueue(ItemDesc &Item)
 {
-   // Create a new item
-   QItem *I = new QItem;   
-   I->Next = Items;
-   Items = I;
+   QItem **I = &Items;
+   for (; *I != 0; I = &(*I)->Next);
    
-   // Fill it in
-   Items->Owner = Owner;
-   Items->URI = URI;
-   Items->Description = Description;
-   Owner->QueueCounter++;
+   // Create a new item
+   QItem *Itm = new QItem;
+   *Itm = Item;
+   Itm->Next = 0;
+   *I = Itm;
    
+   Item.Owner->QueueCounter++;   
    if (Items->Next == 0)
       Cycle();
 }
                                                                        /*}}}*/
 // Queue::Dequeue - Remove an item from the queue                      /*{{{*/
 // ---------------------------------------------------------------------
-/* */
-void pkgAcquire::Queue::Dequeue(Item *Owner)
+/* We return true if we hit something */
+bool pkgAcquire::Queue::Dequeue(Item *Owner)
 {
+   if (Owner->Status == pkgAcquire::Item::StatFetching)
+      return _error->Error("Tried to dequeue a fetching object");
+       
+   bool Res = false;
+   
    QItem **I = &Items;
    for (; *I != 0;)
    {
@@ -383,50 +579,70 @@ void pkgAcquire::Queue::Dequeue(Item *Owner)
         *I = (*I)->Next;
         Owner->QueueCounter--;
         delete Jnk;
+        Res = true;
       }
       else
         I = &(*I)->Next;
    }
+   
+   return Res;
 }
                                                                        /*}}}*/
 // Queue::Startup - Start the worker processes                         /*{{{*/
 // ---------------------------------------------------------------------
-/* */
+/* It is possible for this to be called with a pre-existing set of
+   workers. */
 bool pkgAcquire::Queue::Startup()
 {
-   Shutdown();
-   
-   URI U(Name);
-   pkgAcquire::MethodConfig *Cnf = Owner->GetConfig(U.Access);
-   if (Cnf == 0)
-      return false;
-   
-   Workers = new Worker(this,Cnf);
-   Owner->Add(Workers);
-   if (Workers->Start() == false)
-      return false;
+   if (Workers == 0)
+   {
+      URI U(Name);
+      pkgAcquire::MethodConfig *Cnf = Owner->GetConfig(U.Access);
+      if (Cnf == 0)
+        return false;
+      
+      Workers = new Worker(this,Cnf,Owner->Log);
+      Owner->Add(Workers);
+      if (Workers->Start() == false)
+        return false;
+      
+      /* When pipelining we commit 10 items. This needs to change when we
+         added other source retry to have cycle maintain a pipeline depth
+         on its own. */
+      if (Cnf->Pipeline == true)
+        MaxPipeDepth = 10;
+      else
+        MaxPipeDepth = 1;
+   }
    
    return Cycle();
 }
                                                                        /*}}}*/
 // Queue::Shutdown - Shutdown the worker processes                     /*{{{*/
 // ---------------------------------------------------------------------
-/* */
-bool pkgAcquire::Queue::Shutdown()
+/* If final is true then all workers are eliminated, otherwise only workers
+   that do not need cleanup are removed */
+bool pkgAcquire::Queue::Shutdown(bool Final)
 {
    // Delete all of the workers
-   while (Workers != 0)
+   pkgAcquire::Worker **Cur = &Workers;
+   while (*Cur != 0)
    {
-      pkgAcquire::Worker *Jnk = Workers;
-      Workers = Workers->NextQueue;
-      Owner->Remove(Jnk);
-      delete Jnk;
+      pkgAcquire::Worker *Jnk = *Cur;
+      if (Final == true || Jnk->GetConf()->NeedsCleanup == false)
+      {
+        *Cur = Jnk->NextQueue;
+        Owner->Remove(Jnk);
+        delete Jnk;
+      }
+      else
+        Cur = &(*Cur)->NextQueue;      
    }
    
    return true;
 }
                                                                        /*}}}*/
-// Queue::Finditem - Find a URI in the item list                       /*{{{*/
+// Queue::FindItem - Find a URI in the item list                       /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 pkgAcquire::Queue::QItem *pkgAcquire::Queue::FindItem(string URI,pkgAcquire::Worker *Owner)
@@ -444,6 +660,10 @@ pkgAcquire::Queue::QItem *pkgAcquire::Queue::FindItem(string URI,pkgAcquire::Wor
    main queue too.*/
 bool pkgAcquire::Queue::ItemDone(QItem *Itm)
 {
+   PipeDepth--;
+   if (Itm->Owner->Status == pkgAcquire::Item::StatFetching)
+      Itm->Owner->Status = pkgAcquire::Item::StatDone;
+   
    if (Itm->Owner->QueueCounter <= 1)
       Owner->Dequeue(Itm->Owner);
    else
@@ -457,31 +677,178 @@ bool pkgAcquire::Queue::ItemDone(QItem *Itm)
                                                                        /*}}}*/
 // Queue::Cycle - Queue new items into the method                      /*{{{*/
 // ---------------------------------------------------------------------
-/* This locates a new idle item and sends it to the worker */
+/* This locates a new idle item and sends it to the worker. If pipelining
+   is enabled then it keeps the pipe full. */
 bool pkgAcquire::Queue::Cycle()
 {
    if (Items == 0 || Workers == 0)
       return true;
 
+   if (PipeDepth < 0)
+      return _error->Error("Pipedepth failure");
+                          
    // Look for a queable item
    QItem *I = Items;
-   for (; I != 0; I = I->Next)
-      if (I->Owner->Status == pkgAcquire::Item::StatIdle)
-        break;
-
-   // Nothing to do, queue is idle.
-   if (I == 0)
-      return true;
+   while (PipeDepth < (signed)MaxPipeDepth)
+   {
+      for (; I != 0; I = I->Next)
+        if (I->Owner->Status == pkgAcquire::Item::StatIdle)
+           break;
+      
+      // Nothing to do, queue is idle.
+      if (I == 0)
+        return true;
+      
+      I->Worker = Workers;
+      I->Owner->Status = pkgAcquire::Item::StatFetching;
+      PipeDepth++;
+      if (Workers->QueueItem(I) == false)
+        return false;
+   }
    
-   I->Worker = Workers;
-   I->Owner->Status = pkgAcquire::Item::StatFetching;
-   return Workers->QueueItem(I);
+   return true;
 }
                                                                        /*}}}*/
 // Queue::Bump - Fetch any pending objects if we are idle              /*{{{*/
 // ---------------------------------------------------------------------
-/* */
+/* This is called when an item in multiple queues is dequeued */
 void pkgAcquire::Queue::Bump()
 {
+   Cycle();
+}
+                                                                       /*}}}*/
+
+// AcquireStatus::pkgAcquireStatus - Constructor                       /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgAcquireStatus::pkgAcquireStatus() : Update(true), MorePulses(false)
+{
+   Start();
+}
+                                                                       /*}}}*/
+// AcquireStatus::Pulse - Called periodically                          /*{{{*/
+// ---------------------------------------------------------------------
+/* This computes some internal state variables for the derived classes to
+   use. It generates the current downloaded bytes and total bytes to download
+   as well as the current CPS estimate. */
+bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
+{
+   TotalBytes = 0;
+   CurrentBytes = 0;
+   TotalItems = 0;
+   CurrentItems = 0;
+   
+   // Compute the total number of bytes to fetch
+   unsigned int Unknown = 0;
+   unsigned int Count = 0;
+   for (pkgAcquire::ItemCIterator I = Owner->ItemsBegin(); I != Owner->ItemsEnd();
+       I++, Count++)
+   {
+      TotalItems++;
+      if ((*I)->Status == pkgAcquire::Item::StatDone)
+        CurrentItems++;
+      
+      // Totally ignore local items
+      if ((*I)->Local == true)
+        continue;
+
+      TotalBytes += (*I)->FileSize;
+      if ((*I)->Complete == true)
+        CurrentBytes += (*I)->FileSize;
+      if ((*I)->FileSize == 0 && (*I)->Complete == false)
+        Unknown++;
+   }
+   
+   // Compute the current completion
+   unsigned long ResumeSize = 0;
+   for (pkgAcquire::Worker *I = Owner->WorkersBegin(); I != 0;
+       I = Owner->WorkerStep(I))
+      if (I->CurrentItem != 0 && I->CurrentItem->Owner->Complete == false)
+      {
+        CurrentBytes += I->CurrentSize;
+        ResumeSize += I->ResumePoint;
+        
+        // Files with unknown size always have 100% completion
+        if (I->CurrentItem->Owner->FileSize == 0 && 
+            I->CurrentItem->Owner->Complete == false)
+           TotalBytes += I->CurrentSize;
+      }
+   
+   // Normalize the figures and account for unknown size downloads
+   if (TotalBytes <= 0)
+      TotalBytes = 1;
+   if (Unknown == Count)
+      TotalBytes = Unknown;
+
+   // Wha?! Is not supposed to happen.
+   if (CurrentBytes > TotalBytes)
+      CurrentBytes = TotalBytes;
+   
+   // Compute the CPS
+   struct timeval NewTime;
+   gettimeofday(&NewTime,0);
+   if (NewTime.tv_sec - Time.tv_sec == 6 && NewTime.tv_usec > Time.tv_usec ||
+       NewTime.tv_sec - Time.tv_sec > 6)
+   {    
+      double Delta = NewTime.tv_sec - Time.tv_sec + 
+                    (NewTime.tv_usec - Time.tv_usec)/1000000.0;
+      
+      // Compute the CPS value
+      if (Delta < 0.01)
+        CurrentCPS = 0;
+      else
+        CurrentCPS = ((CurrentBytes - ResumeSize) - LastBytes)/Delta;
+      LastBytes = CurrentBytes - ResumeSize;
+      ElapsedTime = (unsigned long)Delta;
+      Time = NewTime;
+   }
+
+   return true;
+}
+                                                                       /*}}}*/
+// AcquireStatus::Start - Called when the download is started          /*{{{*/
+// ---------------------------------------------------------------------
+/* We just reset the counters */
+void pkgAcquireStatus::Start()
+{
+   gettimeofday(&Time,0);
+   gettimeofday(&StartTime,0);
+   LastBytes = 0;
+   CurrentCPS = 0;
+   CurrentBytes = 0;
+   TotalBytes = 0;
+   FetchedBytes = 0;
+   ElapsedTime = 0;
+   TotalItems = 0;
+   CurrentItems = 0;
+}
+                                                                       /*}}}*/
+// AcquireStatus::Stop - Finished downloading                          /*{{{*/
+// ---------------------------------------------------------------------
+/* This accurately computes the elapsed time and the total overall CPS. */
+void pkgAcquireStatus::Stop()
+{
+   // Compute the CPS and elapsed time
+   struct timeval NewTime;
+   gettimeofday(&NewTime,0);
+   
+   double Delta = NewTime.tv_sec - StartTime.tv_sec + 
+                  (NewTime.tv_usec - StartTime.tv_usec)/1000000.0;
+   
+   // Compute the CPS value
+   if (Delta < 0.01)
+      CurrentCPS = 0;
+   else
+      CurrentCPS = FetchedBytes/Delta;
+   LastBytes = CurrentBytes;
+   ElapsedTime = (unsigned int)Delta;
+}
+                                                                       /*}}}*/
+// AcquireStatus::Fetched - Called when a byte set has been fetched    /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used to get accurate final transfer rate reporting. */
+void pkgAcquireStatus::Fetched(unsigned long Size,unsigned long Resume)
+{   
+   FetchedBytes += Size - Resume;
 }
                                                                        /*}}}*/