// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: acquire-worker.cc,v 1.2 1998/10/20 02:39:13 jgg Exp $
+// $Id: acquire-worker.cc,v 1.10 1998/11/05 07:21:39 jgg Exp $
/* ######################################################################
Acquire Worker
#pragma implementation "apt-pkg/acquire-worker.h"
#endif
#include <apt-pkg/acquire-worker.h>
+#include <apt-pkg/acquire-item.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <unistd.h>
#include <signal.h>
+#include <wait.h>
/*}}}*/
// Worker::Worker - Constructor for Queue startup /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgAcquire::Worker::Worker(Queue *Q,string Acc)
+pkgAcquire::Worker::Worker(Queue *Q,MethodConfig *Cnf)
{
OwnerQ = Q;
- Config = 0;
- Access = Acc;
+ Config = Cnf;
+ Access = Cnf->Access;
+ CurrentItem = 0;
Construct();
}
OwnerQ = 0;
Config = Cnf;
Access = Cnf->Access;
-
+ CurrentItem = 0;
+
Construct();
}
/*}}}*/
/* */
void pkgAcquire::Worker::Construct()
{
- Next = 0;
+ NextQueue = 0;
+ NextAcquire = 0;
Process = -1;
InFd = -1;
OutFd = -1;
+ OutReady = false;
+ InReady = false;
Debug = _config->FindB("Debug::pkgAcquire::Worker",false);
}
/*}}}*/
close(OutFd);
if (Process > 0)
+ {
kill(Process,SIGINT);
+ if (waitpid(Process,0,0) != Process)
+ _error->Warning("I waited but nothing was there!");
+ }
}
/*}}}*/
// Worker::Start - Start the worker process /*{{{*/
close(Pipes[I]);
return false;
}
-
+ for (int I = 0; I != 4; I++)
+ SetCloseExec(Pipes[0],true);
+
// Fork off the process
Process = fork();
if (Process < 0)
dup2(Pipes[1],STDOUT_FILENO);
dup2(Pipes[2],STDIN_FILENO);
dup2(((filebuf *)clog.rdbuf())->fd(),STDERR_FILENO);
- for (int I = 0; I != 4; I++)
- close(Pipes[I]);
SetCloseExec(STDOUT_FILENO,false);
SetCloseExec(STDIN_FILENO,false);
SetCloseExec(STDERR_FILENO,false);
SetNonBlock(Pipes[3],true);
close(Pipes[1]);
close(Pipes[2]);
+ OutReady = false;
+ InReady = true;
// Read the configuration data
if (WaitFd(InFd) == false ||
return _error->Error("Method %s did not start correctly",Method.c_str());
RunMessages();
+ if (OwnerQ != 0)
+ SendConfiguration();
return true;
}
/*}}}*/
// Worker::ReadMessages - Read all pending messages into the list /*{{{*/
// ---------------------------------------------------------------------
-/* This pulls full messages from the input FD into the message buffer.
- It assumes that messages will not pause during transit so no
- fancy buffering is used. */
+/* */
bool pkgAcquire::Worker::ReadMessages()
{
- char Buffer[4000];
- char *End = Buffer;
-
- while (1)
- {
- int Res = read(InFd,End,sizeof(Buffer) - (End-Buffer));
-
- // Process is dead, this is kind of bad..
- if (Res == 0)
- {
- if (waitpid(Process,0,0) != Process)
- _error->Warning("I waited but nothing was there!");
- Process = -1;
- close(InFd);
- close(OutFd);
- InFd = -1;
- OutFd = -1;
- return false;
- }
-
- // No data
- if (Res == -1)
- return true;
-
- End += Res;
-
- // Look for the end of the message
- for (char *I = Buffer; I < End; I++)
- {
- if (I[0] != '\n' || I[1] != '\n')
- continue;
-
- // Pull the message out
- string Message(Buffer,0,I-Buffer);
-
- // Fix up the buffer
- for (; I < End && *I == '\n'; I++);
- End -= I-Buffer;
- memmove(Buffer,I,End-Buffer);
- I = Buffer;
-
- if (Debug == true)
- clog << "Message " << Access << ':' << QuoteString(Message,"\n") << endl;
-
- MessageQueue.push_back(Message);
- }
- if (End == Buffer)
- return true;
-
- if (WaitFd(InFd) == false)
- return false;
- }
-
+ if (::ReadMessages(InFd,MessageQueue) == false)
+ return MethodFailure();
return true;
}
/*}}}*/
-
// Worker::RunMessage - Empty the message queue /*{{{*/
// ---------------------------------------------------------------------
/* This takes the messages from the message queue and runs them through
{
string Message = MessageQueue.front();
MessageQueue.erase(MessageQueue.begin());
+
+ if (Debug == true)
+ clog << " <- " << Access << ':' << QuoteString(Message,"\n") << endl;
// Fetch the message number
char *End;
if (End == Message.c_str())
return _error->Error("Invalid message from method %s: %s",Access.c_str(),Message.c_str());
+ string URI = LookupTag(Message,"URI");
+ pkgAcquire::Queue::QItem *Itm = 0;
+ if (URI.empty() == false)
+ Itm = OwnerQ->FindItem(URI,this);
+
// Determine the message number and dispatch
switch (Number)
{
+ // 100 Capabilities
case 100:
if (Capabilities(Message) == false)
return _error->Error("Unable to process Capabilities message from %s",Access.c_str());
break;
+
+ // 101 Log
+ case 101:
+ if (Debug == true)
+ clog << " <- (log) " << LookupTag(Message,"Message") << endl;
+ break;
+
+ // 102 Status
+ case 102:
+ Status = LookupTag(Message,"Message");
+ break;
+
+ // 200 URI Start
+ case 200:
+ {
+ if (Itm == 0)
+ {
+ _error->Error("Method gave invalid 200 URI Start message");
+ break;
+ }
+ CurrentItem = Itm;
+ CurrentSize = 0;
+ TotalSize = atoi(LookupTag(Message,"Size","0").c_str());
+
+ break;
+ }
+
+ // 201 URI Done
+ case 201:
+ {
+ if (Itm == 0)
+ {
+ _error->Error("Method gave invalid 201 URI Done message");
+ break;
+ }
+
+ pkgAcquire::Item *Owner = Itm->Owner;
+ OwnerQ->ItemDone(Itm);
+ Owner->Done(Message,atoi(LookupTag(Message,"Size","0").c_str()),
+ LookupTag(Message,"MD5-Hash"));
+ break;
+ }
+
+ // 400 URI Failure
+ case 400:
+ {
+ if (Itm == 0)
+ {
+ _error->Error("Method gave invalid 400 URI Failure message");
+ break;
+ }
+
+ pkgAcquire::Item *Owner = Itm->Owner;
+ OwnerQ->ItemDone(Itm);
+ Owner->Failed(Message);
+ break;
+ }
+
+ // 401 General Failure
+ case 401:
+ _error->Error("Method %s General failure: %s",LookupTag(Message,"Message").c_str());
+ break;
}
}
return true;
Config->Version = LookupTag(Message,"Version");
Config->SingleInstance = StringToBool(LookupTag(Message,"Single-Instance"),false);
Config->PreScan = StringToBool(LookupTag(Message,"Pre-Scan"),false);
+ Config->Pipeline = StringToBool(LookupTag(Message,"Pipeline"),false);
+ Config->SendConfig = StringToBool(LookupTag(Message,"Send-Config"),false);
// Some debug text
if (Debug == true)
{
clog << "Configured access method " << Config->Access << endl;
- clog << "Version: " << Config->Version << " SingleInstance: " <<
- Config->SingleInstance << " PreScan: " << Config->PreScan << endl;
+ clog << "Version:" << Config->Version << " SingleInstance:" <<
+ Config->SingleInstance << " PreScan: " << Config->PreScan <<
+ " Pipeline:" << Config->Pipeline << " SendConfig:" <<
+ Config->SendConfig << endl;
}
return true;
}
/*}}}*/
+// Worker::SendConfiguration - Send the config to the method /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgAcquire::Worker::SendConfiguration()
+{
+ if (Config->SendConfig == false)
+ return true;
+
+ if (OutFd == -1)
+ return false;
+
+ string Message = "601 Configuration\n";
+ Message.reserve(2000);
+
+ /* Write out all of the configuration directives by walking the
+ configuration tree */
+ const Configuration::Item *Top = _config->Tree(0);
+ for (; Top != 0;)
+ {
+ if (Top->Value.empty() == false)
+ {
+ string Line = "Config-Item: " + Top->FullTag() + "=";
+ Line += QuoteString(Top->Value,"\n") + '\n';
+ Message += Line;
+ }
+
+ if (Top->Child != 0)
+ {
+ Top = Top->Child;
+ continue;
+ }
+
+ while (Top != 0 && Top->Next == 0)
+ Top = Top->Parent;
+ if (Top != 0)
+ Top = Top->Next;
+ }
+ Message += '\n';
+
+ if (Debug == true)
+ clog << " -> " << Access << ':' << QuoteString(Message,"\n") << endl;
+ OutQueue += Message;
+ OutReady = true;
+
+ return true;
+}
+ /*}}}*/
+// Worker::QueueItem - Add an item to the outbound queue /*{{{*/
+// ---------------------------------------------------------------------
+/* Send a URI Acquire message to the method */
+bool pkgAcquire::Worker::QueueItem(pkgAcquire::Queue::QItem *Item)
+{
+ if (OutFd == -1)
+ return false;
+
+ string Message = "600 URI Acquire\n";
+ Message.reserve(300);
+ Message += "URI: " + Item->URI;
+ Message += "\nFilename: " + Item->Owner->DestFile;
+ Message += Item->Owner->Custom600Headers();
+ Message += "\n\n";
+
+ if (Debug == true)
+ clog << " -> " << Access << ':' << QuoteString(Message,"\n") << endl;
+ OutQueue += Message;
+ OutReady = true;
+
+ return true;
+}
+ /*}}}*/
+// Worker::OutFdRead - Out bound FD is ready /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgAcquire::Worker::OutFdReady()
+{
+ int Res = write(OutFd,OutQueue.begin(),OutQueue.length());
+ if (Res <= 0)
+ return MethodFailure();
+
+ // Hmm.. this should never happen.
+ if (Res < 0)
+ return true;
+
+ OutQueue.erase(0,Res);
+ if (OutQueue.empty() == true)
+ OutReady = false;
+
+ return true;
+}
+ /*}}}*/
+// Worker::InFdRead - In bound FD is ready /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgAcquire::Worker::InFdReady()
+{
+ if (ReadMessages() == false)
+ return false;
+ RunMessages();
+ return true;
+}
+ /*}}}*/
+// Worker::MethodFailure - Called when the method fails /*{{{*/
+// ---------------------------------------------------------------------
+/* This is called when the method is belived to have failed, probably because
+ read returned -1. */
+bool pkgAcquire::Worker::MethodFailure()
+{
+ cerr << "Method " << Access << " has died unexpectedly!" << endl;
+ if (waitpid(Process,0,0) != Process)
+ _error->Warning("I waited but nothing was there!");
+ Process = -1;
+ close(InFd);
+ close(OutFd);
+ InFd = -1;
+ OutFd = -1;
+ OutReady = false;
+ InReady = false;
+ OutQueue = string();
+ MessageQueue.erase(MessageQueue.begin(),MessageQueue.end());
+
+ return false;
+}
+ /*}}}*/
projects / apt.git / blobdiff