// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: acquire.cc,v 1.23 1998/12/11 07:20:32 jgg Exp $
+// $Id: acquire.cc,v 1.50 2004/03/17 05:17:11 mdz Exp $
/* ######################################################################
Acquire - File Acquiration
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/acquire.h"
-#endif
#include <apt-pkg/acquire.h>
#include <apt-pkg/acquire-item.h>
#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 <apt-pkg/fileutl.h>
+
+#include <apti18n.h>
+
+#include <iostream>
+#include <sstream>
+#include <stdio.h>
#include <dirent.h>
#include <sys/time.h>
+#include <errno.h>
/*}}}*/
+using namespace std;
+
// Acquire::pkgAcquire - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* We grab some runtime state from the configuration space */
-pkgAcquire::pkgAcquire(pkgAcquireStatus *Log) : Log(Log)
+pkgAcquire::pkgAcquire() : Queues(0), Workers(0), Configs(0), Log(NULL), ToFetch(0),
+ Debug(_config->FindB("Debug::pkgAcquire",false)),
+ Running(false), LockFD(-1)
{
- Queues = 0;
- Configs = 0;
- Workers = 0;
- ToFetch = 0;
- Running = false;
-
- string Mode = _config->Find("Acquire::Queue-Mode","host");
+ string const Mode = _config->Find("Acquire::Queue-Mode","host");
+ if (strcasecmp(Mode.c_str(),"host") == 0)
+ QueueMode = QueueHost;
+ if (strcasecmp(Mode.c_str(),"access") == 0)
+ QueueMode = QueueAccess;
+}
+pkgAcquire::pkgAcquire(pkgAcquireStatus *Progress) : Queues(0), Workers(0),
+ Configs(0), Log(Progress), ToFetch(0),
+ Debug(_config->FindB("Debug::pkgAcquire",false)),
+ Running(false), LockFD(-1)
+{
+ string const Mode = _config->Find("Acquire::Queue-Mode","host");
if (strcasecmp(Mode.c_str(),"host") == 0)
QueueMode = QueueHost;
if (strcasecmp(Mode.c_str(),"access") == 0)
- QueueMode = QueueAccess;
+ QueueMode = QueueAccess;
+ Setup(Progress, "");
+}
+ /*}}}*/
+// Acquire::Setup - Delayed Constructor /*{{{*/
+// ---------------------------------------------------------------------
+/* Do everything needed to be a complete Acquire object and report the
+ success (or failure) back so the user knows that something is wrong… */
+bool pkgAcquire::Setup(pkgAcquireStatus *Progress, string const &Lock)
+{
+ Log = Progress;
+
+ // check for existence and possibly create auxiliary directories
+ string const listDir = _config->FindDir("Dir::State::lists");
+ string const partialListDir = listDir + "partial/";
+ string const archivesDir = _config->FindDir("Dir::Cache::Archives");
+ string const partialArchivesDir = archivesDir + "partial/";
- Debug = _config->FindB("Debug::pkgAcquire",false);
+ if (CheckDirectory(_config->FindDir("Dir::State"), partialListDir) == false &&
+ CheckDirectory(listDir, partialListDir) == false)
+ return _error->Errno("Acquire", _("List directory %spartial is missing."), listDir.c_str());
+
+ if (CheckDirectory(_config->FindDir("Dir::Cache"), partialArchivesDir) == false &&
+ CheckDirectory(archivesDir, partialArchivesDir) == false)
+ return _error->Errno("Acquire", _("Archives directory %spartial is missing."), archivesDir.c_str());
+
+ if (Lock.empty() == true || _config->FindB("Debug::NoLocking", false) == true)
+ return true;
+
+ // Lock the directory this acquire object will work in
+ LockFD = GetLock(flCombine(Lock, "lock"));
+ if (LockFD == -1)
+ return _error->Error(_("Unable to lock directory %s"), Lock.c_str());
+
+ return true;
+}
+ /*}}}*/
+// Acquire::CheckDirectory - ensure that the given directory exists /*{{{*/
+// ---------------------------------------------------------------------
+/* a small wrapper around CreateDirectory to check if it exists and to
+ remove the trailing "/apt/" from the parent directory if needed */
+bool pkgAcquire::CheckDirectory(string const &Parent, string const &Path) const
+{
+ if (DirectoryExists(Path) == true)
+ return true;
+
+ size_t const len = Parent.size();
+ if (len > 5 && Parent.find("/apt/", len - 6, 5) == len - 5)
+ {
+ if (CreateDirectory(Parent.substr(0,len-5), Path) == true)
+ return true;
+ }
+ else if (CreateDirectory(Parent, Path) == true)
+ return true;
+
+ return false;
}
/*}}}*/
// Acquire::~pkgAcquire - Destructor /*{{{*/
/* Free our memory, clean up the queues (destroy the workers) */
pkgAcquire::~pkgAcquire()
{
- while (Items.size() != 0)
- delete Items[0];
+ Shutdown();
+
+ if (LockFD != -1)
+ close(LockFD);
while (Configs != 0)
{
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)
{
/* 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::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)
Item.Owner->Status = Item::StatIdle;
// Queue it into the named queue
- I->Enqueue(Item);
- ToFetch++;
-
+ if(I->Enqueue(Item))
+ ToFetch++;
+
// Some trace stuff
if (Debug == true)
{
Worker Work(Conf);
if (Work.Start() == false)
return 0;
-
+
+ /* if a method uses DownloadLimit, we switch to SingleInstance mode */
+ if(_config->FindI("Acquire::"+Access+"::Dl-Limit",0) > 0)
+ Conf->SingleInstance = true;
+
return Conf;
}
/*}}}*/
/* 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;
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;
+ tv.tv_usec = PulseIntervall;
while (ToFetch > 0)
{
fd_set RFds;
FD_ZERO(&WFds);
SetFds(Highest,&RFds,&WFds);
- int Res = select(Highest+1,&RFds,&WFds,0,&tv);
+ int Res;
+ do
+ {
+ Res = select(Highest+1,&RFds,&WFds,0,&tv);
+ }
+ while (Res < 0 && errno == EINTR);
+
if (Res < 0)
{
_error->Errno("select","Select has failed");
// Timeout, notify the log class
if (Res == 0 || (Log != 0 && Log->Update == true))
{
- tv.tv_usec = 500000;
+ tv.tv_usec = PulseIntervall;
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 (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 /*{{{*/
{
DIR *D = opendir(Dir.c_str());
if (D == 0)
- return _error->Errno("opendir","Unable to read %s",Dir.c_str());
+ 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 ",Dir.c_str());
+ return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
}
for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
continue;
// Look in the get list
- vector<Item *>::iterator I = Items.begin();
+ ItemCIterator I = Items.begin();
for (; I != Items.end(); I++)
if (flNotDir((*I)->DestFile) == Dir->d_name)
break;
unlink(Dir->d_name);
};
- chdir(StartDir.c_str());
closedir(D);
+ if (chdir(StartDir.c_str()) != 0)
+ return _error->Errno("chdir",_("Unable to change to %s"),StartDir.c_str());
return true;
}
/*}}}*/
// Acquire::TotalNeeded - Number of bytes to fetch /*{{{*/
// ---------------------------------------------------------------------
/* This is the total number of bytes needed */
-unsigned long pkgAcquire::TotalNeeded()
+unsigned long long pkgAcquire::TotalNeeded()
{
- unsigned long Total = 0;
- for (pkgAcquire::Item **I = ItemsBegin(); I != ItemsEnd(); I++)
+ unsigned long long 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 */
-unsigned long pkgAcquire::FetchNeeded()
+unsigned long long pkgAcquire::FetchNeeded()
{
- unsigned long Total = 0;
- for (pkgAcquire::Item **I = ItemsBegin(); I != ItemsEnd(); I++)
+ unsigned long long 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 */
+unsigned long long pkgAcquire::PartialPresent()
+{
+ unsigned long long 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 /*{{{*/
// ---------------------------------------------------------------------
/* */
Pipeline = false;
SendConfig = false;
LocalOnly = false;
+ Removable = false;
Next = 0;
}
/*}}}*/
-
// Queue::Queue - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
/* */
pkgAcquire::Queue::~Queue()
{
- Shutdown();
+ Shutdown(true);
while (Items != 0)
{
// Queue::Enqueue - Queue an item to the queue /*{{{*/
// ---------------------------------------------------------------------
/* */
-void pkgAcquire::Queue::Enqueue(ItemDesc &Item)
+bool pkgAcquire::Queue::Enqueue(ItemDesc &Item)
{
QItem **I = &Items;
- for (; *I != 0; I = &(*I)->Next);
-
+ // move to the end of the queue and check for duplicates here
+ for (; *I != 0; I = &(*I)->Next)
+ if (Item.URI == (*I)->URI)
+ {
+ Item.Owner->Status = Item::StatDone;
+ return false;
+ }
+
// Create a new item
QItem *Itm = new QItem;
*Itm = Item;
Item.Owner->QueueCounter++;
if (Items->Next == 0)
Cycle();
+ return true;
}
/*}}}*/
// Queue::Dequeue - Remove an item from the queue /*{{{*/
/*}}}*/
// 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 = _config->FindI("Acquire::Max-Pipeline-Depth",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)
Cycle();
}
/*}}}*/
-
// AcquireStatus::pkgAcquireStatus - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgAcquireStatus::pkgAcquireStatus()
+pkgAcquireStatus::pkgAcquireStatus() : Update(true), MorePulses(false)
{
Start();
}
/* 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 total number of bytes to fetch
unsigned int Unknown = 0;
unsigned int Count = 0;
- for (pkgAcquire::Item **I = Owner->ItemsBegin(); I != Owner->ItemsEnd();
+ for (pkgAcquire::ItemCIterator I = Owner->ItemsBegin(); I != Owner->ItemsEnd();
I++, Count++)
{
TotalItems++;
// Totally ignore local items
if ((*I)->Local == true)
continue;
-
+
TotalBytes += (*I)->FileSize;
if ((*I)->Complete == true)
CurrentBytes += (*I)->FileSize;
}
// 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;
gettimeofday(&NewTime,0);
- if (NewTime.tv_sec - Time.tv_sec == 6 && NewTime.tv_usec > Time.tv_usec ||
+ if ((NewTime.tv_sec - Time.tv_sec == 6 && NewTime.tv_usec > Time.tv_usec) ||
NewTime.tv_sec - Time.tv_sec > 6)
{
- // Compute the delta time with full accuracy
- long usdiff = NewTime.tv_usec - Time.tv_usec;
- long sdiff = NewTime.tv_sec - Time.tv_sec;
+ double Delta = NewTime.tv_sec - Time.tv_sec +
+ (NewTime.tv_usec - Time.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 = (CurrentBytes - LastBytes)/(sdiff + usdiff/1000000.0);
- LastBytes = CurrentBytes;
- ElapsedTime = NewTime.tv_sec - StartTime.tv_sec;
+ CurrentCPS = ((CurrentBytes - ResumeSize) - LastBytes)/Delta;
+ LastBytes = CurrentBytes - ResumeSize;
+ ElapsedTime = (unsigned long)Delta;
Time = NewTime;
}
+
+ int fd = _config->FindI("APT::Status-Fd",-1);
+ if(fd > 0)
+ {
+ ostringstream status;
+
+ char msg[200];
+ long i = CurrentItems < TotalItems ? CurrentItems + 1 : CurrentItems;
+ unsigned long ETA =
+ (unsigned long)((TotalBytes - CurrentBytes) / CurrentCPS);
+
+ // only show the ETA if it makes sense
+ if (ETA > 0 && ETA < 172800 /* two days */ )
+ snprintf(msg,sizeof(msg), _("Retrieving file %li of %li (%s remaining)"), i, TotalItems, TimeToStr(ETA).c_str());
+ else
+ snprintf(msg,sizeof(msg), _("Retrieving file %li of %li"), i, TotalItems);
+
+
+
+ // build the status str
+ status << "dlstatus:" << i
+ << ":" << (CurrentBytes/float(TotalBytes)*100.0)
+ << ":" << msg
+ << endl;
+ write(fd, status.str().c_str(), status.str().size());
+ }
+
+ 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