HTTP pipelining

Author: jgg
Date: 1998-12-05 04:19:01 GMT
HTTP pipelining

3 files changed, 24 insertions, 5 deletions

diff --git a/apt-pkg/acquire-method.cc b/apt-pkg/acquire-method.cc
index b0176d3cb..8b1de6fb3 100644
--- a/apt-pkg/acquire-method.cc
+++ b/apt-pkg/acquire-method.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: acquire-method.cc,v 1.13 1998/12/05 01:45:19 jgg Exp $
+// $Id: acquire-method.cc,v 1.14 1998/12/05 04:19:01 jgg Exp $
 /* ######################################################################
 
    Acquire Method
@@ -47,8 +47,9 @@ pkgAcqMethod::pkgAcqMethod(const char *Ver,unsigned long Flags)
       exit(100);
 
    SetNonBlock(STDIN_FILENO,true);
-   
+
    Queue = 0;
+   QueueBack = 0;
 }
 									/*}}}*/
 // AcqMethod::Fail - A fetch has failed					/*{{{*/
@@ -78,6 +79,8 @@ void pkgAcqMethod::Fail(string Err,bool Transient)
       FetchItem *Tmp = Queue;
       Queue = Queue->Next;
       delete Tmp;
+      if (Tmp == QueueBack)
+	 QueueBack = Queue;
    }
    else
       snprintf(S,sizeof(S),"400 URI Failure\nURI: <UNKNOWN>\n"
@@ -183,6 +186,8 @@ void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
    FetchItem *Tmp = Queue;
    Queue = Queue->Next;
    delete Tmp;
+   if (Tmp == QueueBack)
+      QueueBack = Queue;
 }
 									/*}}}*/
 // AcqMethod::MediaFail - Syncronous request for new media		/*{{{*/
@@ -328,7 +333,9 @@ int pkgAcqMethod::Run(bool Single)
 	    FetchItem **I = &Queue;
 	    for (; *I != 0; I = &(*I)->Next);
 	    *I = Tmp;
-
+	    if (QueueBack == 0)
+	       QueueBack = Tmp;
+	    
 	    // Notify that this item is to be fetched.
 	    if (Fetch(Tmp) == false)
 	       Fail();
diff --git a/apt-pkg/acquire-method.h b/apt-pkg/acquire-method.h
index 69ed28585..cefb60468 100644
--- a/apt-pkg/acquire-method.h
+++ b/apt-pkg/acquire-method.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: acquire-method.h,v 1.6 1998/12/04 22:56:51 jgg Exp $
+// $Id: acquire-method.h,v 1.7 1998/12/05 04:19:02 jgg Exp $
 /* ######################################################################
 
    Acquire Method - Method helper class + functions
@@ -48,6 +48,7 @@ class pkgAcqMethod
    // State
    vector<string> Messages;
    FetchItem *Queue;
+   FetchItem *QueueBack;
       
    // Handlers for messages
    virtual bool Configuration(string Message);
diff --git a/apt-pkg/acquire.cc b/apt-pkg/acquire.cc
index 54de9916e..b7ef818a1 100644
--- a/apt-pkg/acquire.cc
+++ b/apt-pkg/acquire.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: acquire.cc,v 1.19 1998/11/29 01:24:19 jgg Exp $
+// $Id: acquire.cc,v 1.20 1998/12/05 04:19:03 jgg Exp $
 /* ######################################################################
 
    Acquire - File Acquiration
@@ -514,6 +514,17 @@ bool pkgAcquire::Queue::Startup()
    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)
+   {
+      bool Res = true;
+      for (int I = 0; I != 10 && Res == true; I++)
+	 Res &= Cycle();
+      return Res;
+   }
+   
    return Cycle();
 }
 									/*}}}*/