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[ntk/apt.git] / apt-pkg / acquire.cc

diff --git a/apt-pkg/acquire.cc b/apt-pkg/acquire.cc
index 573a85c..057bc24 100644 (file)
--- a/apt-pkg/acquire.cc
+++ b/apt-pkg/acquire.cc
@@ -5,9 +5,9 @@
 
    Acquire - File Acquiration
 
-   The core element for the schedual system is the concept of a named
+   The core element for the schedule system is the concept of a named
    queue. Each queue is unique and each queue has a name derived from the
-   URI. The degree of paralization can be controled by how the queue
+   URI. The degree of paralization can be controlled by how the queue
    name is derived from the URI.
    
    ##################################################################### */
@@ -23,12 +23,18 @@
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
 
+#include <string>
+#include <vector>
 #include <iostream>
 #include <sstream>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 #include <dirent.h>
 #include <sys/time.h>
+#include <sys/select.h>
 #include <errno.h>
 
 #include <apti18n.h>
@@ -175,7 +181,7 @@ void pkgAcquire::Add(Worker *Work)
 // ---------------------------------------------------------------------
 /* A worker has died. This can not be done while the select loop is running
    as it would require that RunFds could handling a changing list state and
-   it cant.. */
+   it can't.. */
 void pkgAcquire::Remove(Worker *Work)
 {
    if (Running == true)
@@ -244,11 +250,19 @@ void pkgAcquire::Dequeue(Item *Itm)
 {
    Queue *I = Queues;
    bool Res = false;
-   for (; I != 0; I = I->Next)
-      Res |= I->Dequeue(Itm);
-   
    if (Debug == true)
       clog << "Dequeuing " << Itm->DestFile << endl;
+
+   for (; I != 0; I = I->Next)
+   {
+      if (I->Dequeue(Itm))
+      {
+         Res = true;
+        if (Debug == true)
+           clog << "Dequeued from " << I->Name << endl;
+      }
+   }
+
    if (Res == true)
       ToFetch--;
 }
@@ -269,9 +283,30 @@ string pkgAcquire::QueueName(string Uri,MethodConfig const *&Config)
    /* 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;
+
+   string AccessSchema = U.Access + ':',
+       FullQueueName = AccessSchema + U.Host;
+   unsigned int Instances = 0, SchemaLength = AccessSchema.length();
 
-   return U.Access + ':' + U.Host;
+   Queue *I = Queues;
+   for (; I != 0; I = I->Next) {
+      // if the queue already exists, re-use it
+      if (I->Name == FullQueueName)
+        return FullQueueName;
+
+      if (I->Name.compare(0, SchemaLength, AccessSchema) == 0)
+        Instances++;
+   }
+
+   if (Debug) {
+      clog << "Found " << Instances << " instances of " << U.Access << endl;
+   }
+
+   if (Instances >= (unsigned int)_config->FindI("Acquire::QueueHost::Limit",10))
+      return U.Access;
+
+   return FullQueueName;
 }
                                                                        /*}}}*/
 // Acquire::GetConfig - Fetch the configuration information            /*{{{*/
@@ -439,7 +474,7 @@ void pkgAcquire::Bump()
 pkgAcquire::Worker *pkgAcquire::WorkerStep(Worker *I)
 {
    return I->NextAcquire;
-};
+}
                                                                        /*}}}*/
 // Acquire::Clean - Cleans a directory                                 /*{{{*/
 // ---------------------------------------------------------------------
@@ -451,6 +486,9 @@ bool pkgAcquire::Clean(string Dir)
    if (DirectoryExists(Dir) == false)
       return true;
 
+   if(Dir == "/")
+      return _error->Error(_("Clean of %s is not supported"), Dir.c_str());
+
    DIR *D = opendir(Dir.c_str());   
    if (D == 0)
       return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
@@ -491,7 +529,7 @@ bool pkgAcquire::Clean(string Dir)
 // Acquire::TotalNeeded - Number of bytes to fetch                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the total number of bytes needed */
-unsigned long long pkgAcquire::TotalNeeded()
+APT_PURE unsigned long long pkgAcquire::TotalNeeded()
 {
    unsigned long long Total = 0;
    for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); ++I)
@@ -502,7 +540,7 @@ unsigned long long pkgAcquire::TotalNeeded()
 // Acquire::FetchNeeded - Number of bytes needed to get                        /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */
-unsigned long long pkgAcquire::FetchNeeded()
+APT_PURE unsigned long long pkgAcquire::FetchNeeded()
 {
    unsigned long long Total = 0;
    for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); ++I)
@@ -514,7 +552,7 @@ unsigned long long pkgAcquire::FetchNeeded()
 // Acquire::PartialPresent - Number of partial bytes we already have   /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */
-unsigned long long pkgAcquire::PartialPresent()
+APT_PURE unsigned long long pkgAcquire::PartialPresent()
 {
   unsigned long long Total = 0;
    for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); ++I)
@@ -872,7 +910,9 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
             << ":"  << (CurrentBytes/float(TotalBytes)*100.0) 
             << ":" << msg 
             << endl;
-      write(fd, status.str().c_str(), status.str().size());
+
+      std::string const dlstatus = status.str();
+      FileFd::Write(fd, dlstatus.c_str(), dlstatus.size());
    }
 
    return true;