// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: acquire.cc,v 1.29 1999/03/16 00:43:55 jgg Exp $
+// $Id: acquire.cc,v 1.44 1999/12/09 05:22:33 jgg Exp $
/* ######################################################################
Acquire - File Acquiration
#include <dirent.h>
#include <sys/time.h>
+#include <errno.h>
+#include <sys/stat.h>
/*}}}*/
// Acquire::pkgAcquire - Constructor /*{{{*/
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 /*{{{*/
/* Free our memory, clean up the queues (destroy the workers) */
pkgAcquire::~pkgAcquire()
{
- while (Items.size() != 0)
- delete Items[0];
-
while (Configs != 0)
{
MethodConfig *Jnk = Configs;
Configs = Configs->Next;
delete Jnk;
}
+
+ Shutdown();
+}
+ /*}}}*/
+// Acquire::Shutdown - Clean out the acquire object /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcquire::Shutdown()
+{
+ while (Items.size() != 0)
+ delete Items[0];
while (Queues != 0)
{
/* Remove an item from the acquire list. This is usually not used.. */
void pkgAcquire::Remove(Item *Itm)
{
+ Dequeue(Itm);
+
for (vector<Item *>::iterator I = Items.begin(); I < Items.end(); I++)
{
if (*I == Itm)
// 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(ItemDesc &Item)
/* 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()
{
Running = true;
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 = 500000;
for (Worker *I = Workers; I != 0; I = I->NextAcquire)
I->Pulse();
- if (Log != 0)
- Log->Pulse(this);
+ if (Log != 0 && Log->Pulse(this) == false)
+ {
+ WasCancelled = true;
+ break;
+ }
}
}
// 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 (Item **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 /*{{{*/
return Total;
}
/*}}}*/
-// pkgAcquire::UriBegin - Start iterator for the uri list /*{{{*/
+// Acquire::PartialPresent - Number of partial bytes we already have /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the number of bytes that is not local */
+unsigned long pkgAcquire::PartialPresent()
+{
+ unsigned long Total = 0;
+ for (pkgAcquire::Item **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);
}
/*}}}*/
-// pkgAcquire::UriEnd - End iterator for the uri list /*{{{*/
+// Acquire::UriEnd - End iterator for the uri list /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgAcquire::UriIterator pkgAcquire::UriEnd()
/* */
pkgAcquire::Queue::~Queue()
{
- Shutdown();
+ Shutdown(true);
while (Items != 0)
{
/*}}}*/
// 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->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;
+ 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;
/* 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. */
-void pkgAcquireStatus::Pulse(pkgAcquire *Owner)
+bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
{
TotalBytes = 0;
CurrentBytes = 0;
}
// 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;
- else
- TotalBytes += TotalBytes/(Count - Unknown)*Unknown;
+
+ // Wha?! Is not supposed to happen.
+ if (CurrentBytes > TotalBytes)
+ CurrentBytes = TotalBytes;
// Compute the CPS
struct timeval NewTime;
if (Delta < 0.01)
CurrentCPS = 0;
else
- CurrentCPS = (CurrentBytes - LastBytes)/Delta;
- LastBytes = CurrentBytes;
+ CurrentCPS = ((CurrentBytes - ResumeSize) - LastBytes)/Delta;
+ LastBytes = CurrentBytes - ResumeSize;
ElapsedTime = (unsigned long)Delta;
Time = NewTime;
}
+
+ return true;
}
/*}}}*/
// AcquireStatus::Start - Called when the download is started /*{{{*/
struct timeval NewTime;
gettimeofday(&NewTime,0);
- // Compute the delta time with full accuracy
- long usdiff = NewTime.tv_usec - StartTime.tv_usec;
- long sdiff = NewTime.tv_sec - StartTime.tv_sec;
+ double Delta = NewTime.tv_sec - StartTime.tv_sec +
+ (NewTime.tv_usec - StartTime.tv_usec)/1000000.0;
- // Borrow
- if (usdiff < 0)
- {
- usdiff += 1000000;
- sdiff--;
- }
-
// Compute the CPS value
- if (sdiff == 0 && usdiff == 0)
+ if (Delta < 0.01)
CurrentCPS = 0;
else
- CurrentCPS = FetchedBytes/(sdiff + usdiff/1000000.0);
+ CurrentCPS = FetchedBytes/Delta;
LastBytes = CurrentBytes;
- ElapsedTime = sdiff;
+ ElapsedTime = (unsigned int)Delta;
}
/*}}}*/
// AcquireStatus::Fetched - Called when a byte set has been fetched /*{{{*/
projects / apt.git / blobdiff