Merge EDSP 0.5 w/ multi-arch support for external solvers

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

diff --git a/apt-pkg/acquire.cc b/apt-pkg/acquire.cc
index 74510ae21aaaef46ff13aeb9578c8f4b295c99f7..a187a00ae9752fc900a2797302cf369780465816 100644 (file)
--- a/apt-pkg/acquire.cc
+++ b/apt-pkg/acquire.cc
@@ -5,31 +5,39 @@
 
    Acquire - File Acquiration
 
 
    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
    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.
    
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    name is derived from the URI.
    
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include <config.h>
+

 #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 <apt-pkg/strutl.h>
 #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 <apt-pkg/strutl.h>

+#include <apt-pkg/fileutl.h>

 
 

-#include <apti18n.h>
-
+#include <string>
+#include <vector>

 #include <iostream>
 #include <sstream>
 #include <stdio.h>
 #include <iostream>
 #include <sstream>
 #include <stdio.h>

+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>

 
 #include <dirent.h>
 #include <sys/time.h>
 
 #include <dirent.h>
 #include <sys/time.h>

+#include <sys/select.h>

 #include <errno.h>
 #include <errno.h>

-#include <sys/stat.h>
+
+#include <apti18n.h>

                                                                        /*}}}*/
 
 using namespace std;
                                                                        /*}}}*/
 
 using namespace std;


@@ -37,32 +45,60 @@ using namespace std;
 // Acquire::pkgAcquire - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* We grab some runtime state from the configuration space */
 // Acquire::pkgAcquire - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* We grab some runtime state from the configuration space */

-pkgAcquire::pkgAcquire(pkgAcquireStatus *Log) : Log(Log)
+pkgAcquire::pkgAcquire() : LockFD(-1), Queues(0), Workers(0), Configs(0), Log(NULL), ToFetch(0),
+                          Debug(_config->FindB("Debug::pkgAcquire",false)),
+                          Running(false)

 {
 {

-   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) :  LockFD(-1), Queues(0), Workers(0),
+                          Configs(0), Log(Progress), ToFetch(0),
+                          Debug(_config->FindB("Debug::pkgAcquire",false)),
+                          Running(false)
+{
+   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)
    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;

 
 

-   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());
+   // 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/";
+
+   if (CreateAPTDirectoryIfNeeded(_config->FindDir("Dir::State"), partialListDir) == false &&
+       CreateAPTDirectoryIfNeeded(listDir, partialListDir) == false)
+      return _error->Errno("Acquire", _("List directory %spartial is missing."), listDir.c_str());
+
+   if (CreateAPTDirectoryIfNeeded(_config->FindDir("Dir::Cache"), partialArchivesDir) == false &&
+       CreateAPTDirectoryIfNeeded(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::~pkgAcquire        - Destructor                                    /*{{{*/
 }
                                                                        /*}}}*/
 // Acquire::~pkgAcquire        - Destructor                                    /*{{{*/


@@ -71,7 +107,10 @@ pkgAcquire::pkgAcquire(pkgAcquireStatus *Log) : Log(Log)
 pkgAcquire::~pkgAcquire()
 {
    Shutdown();
 pkgAcquire::~pkgAcquire()
 {
    Shutdown();

-   
+
+   if (LockFD != -1)
+      close(LockFD);
+

    while (Configs != 0)
    {
       MethodConfig *Jnk = Configs;
    while (Configs != 0)
    {
       MethodConfig *Jnk = Configs;


@@ -85,7 +124,7 @@ pkgAcquire::~pkgAcquire()
 /* */
 void pkgAcquire::Shutdown()
 {
 /* */
 void pkgAcquire::Shutdown()
 {

-   while (Items.size() != 0)
+   while (Items.empty() == false)

    {
       if (Items[0]->Status == Item::StatFetching)
          Items[0]->Status = Item::StatError;
    {
       if (Items[0]->Status == Item::StatFetching)
          Items[0]->Status = Item::StatError;


@@ -124,7 +163,7 @@ void pkgAcquire::Remove(Item *Itm)
         I = Items.begin();
       }      
       else 
         I = Items.begin();
       }      
       else 

-        I++;
+        ++I;

    }
 }
                                                                        /*}}}*/
    }
 }
                                                                        /*}}}*/


@@ -142,7 +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
 // ---------------------------------------------------------------------
 /* 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)
 void pkgAcquire::Remove(Worker *Work)
 {
    if (Running == true)


@@ -211,11 +250,19 @@ void pkgAcquire::Dequeue(Item *Itm)
 {
    Queue *I = Queues;
    bool Res = false;
 {
    Queue *I = Queues;
    bool Res = false;

-   for (; I != 0; I = I->Next)
-      Res |= I->Dequeue(Itm);
-   

    if (Debug == true)
       clog << "Dequeuing " << Itm->DestFile << endl;
    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--;
 }
    if (Res == true)
       ToFetch--;
 }


@@ -236,9 +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)
    /* 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;

 
 

-   return U.Access + ':' + U.Host;
+   string AccessSchema = U.Access + ':',
+       FullQueueName = AccessSchema + U.Host;
+   unsigned int Instances = 0, SchemaLength = AccessSchema.length();
+
+   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            /*{{{*/
 }
                                                                        /*}}}*/
 // Acquire::GetConfig - Fetch the configuration information            /*{{{*/


@@ -380,7 +448,7 @@ pkgAcquire::RunResult pkgAcquire::Run(int PulseIntervall)
       I->Shutdown(false);
 
    // Shut down the items
       I->Shutdown(false);
 
    // Shut down the items

-   for (ItemIterator I = Items.begin(); I != Items.end(); I++)
+   for (ItemIterator I = Items.begin(); I != Items.end(); ++I)

       (*I)->Finished(); 
    
    if (_error->PendingError())
       (*I)->Finished(); 
    
    if (_error->PendingError())


@@ -406,7 +474,7 @@ void pkgAcquire::Bump()
 pkgAcquire::Worker *pkgAcquire::WorkerStep(Worker *I)
 {
    return I->NextAcquire;
 pkgAcquire::Worker *pkgAcquire::WorkerStep(Worker *I)
 {
    return I->NextAcquire;

-};
+}

                                                                        /*}}}*/
 // Acquire::Clean - Cleans a directory                                 /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // Acquire::Clean - Cleans a directory                                 /*{{{*/
 // ---------------------------------------------------------------------


@@ -414,6 +482,10 @@ pkgAcquire::Worker *pkgAcquire::WorkerStep(Worker *I)
    if it is part of the download set. */
 bool pkgAcquire::Clean(string Dir)
 {
    if it is part of the download set. */
 bool pkgAcquire::Clean(string Dir)
 {

+   // non-existing directories are by definition clean…
+   if (DirectoryExists(Dir) == false)
+      return true;
+

    DIR *D = opendir(Dir.c_str());   
    if (D == 0)
       return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
    DIR *D = opendir(Dir.c_str());   
    if (D == 0)
       return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());


@@ -436,7 +508,7 @@ bool pkgAcquire::Clean(string Dir)
       
       // Look in the get list
       ItemCIterator I = Items.begin();
       
       // Look in the get list
       ItemCIterator I = Items.begin();

-      for (; I != Items.end(); I++)
+      for (; I != Items.end(); ++I)

         if (flNotDir((*I)->DestFile) == Dir->d_name)
            break;
       
         if (flNotDir((*I)->DestFile) == Dir->d_name)
            break;
       


@@ -454,10 +526,10 @@ bool pkgAcquire::Clean(string Dir)
 // Acquire::TotalNeeded - Number of bytes to fetch                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the total number of bytes needed */
 // Acquire::TotalNeeded - Number of bytes to fetch                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the total number of bytes needed */

-double pkgAcquire::TotalNeeded()
+APT_PURE unsigned long long pkgAcquire::TotalNeeded()

 {
 {

-   double Total = 0;
-   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); I++)
+   unsigned long long Total = 0;
+   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); ++I)

       Total += (*I)->FileSize;
    return Total;
 }
       Total += (*I)->FileSize;
    return Total;
 }


@@ -465,10 +537,10 @@ double pkgAcquire::TotalNeeded()
 // Acquire::FetchNeeded - Number of bytes needed to get                        /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */
 // Acquire::FetchNeeded - Number of bytes needed to get                        /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */

-double pkgAcquire::FetchNeeded()
+APT_PURE unsigned long long pkgAcquire::FetchNeeded()

 {
 {

-   double Total = 0;
-   for (ItemCIterator 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;
       if ((*I)->Local == false)
         Total += (*I)->FileSize;
    return Total;


@@ -477,10 +549,10 @@ double pkgAcquire::FetchNeeded()
 // Acquire::PartialPresent - Number of partial bytes we already have   /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */
 // Acquire::PartialPresent - Number of partial bytes we already have   /*{{{*/
 // ---------------------------------------------------------------------
 /* This is the number of bytes that is not local */

-double pkgAcquire::PartialPresent()
+APT_PURE unsigned long long pkgAcquire::PartialPresent()

 {
 {

-  double Total = 0;
-   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); I++)
+  unsigned long long Total = 0;
+   for (ItemCIterator I = ItemsBegin(); I != ItemsEnd(); ++I)

       if ((*I)->Local == false)
         Total += (*I)->PartialSize;
    return Total;
       if ((*I)->Local == false)
         Total += (*I)->PartialSize;
    return Total;


@@ -729,7 +801,7 @@ void pkgAcquire::Queue::Bump()
 // AcquireStatus::pkgAcquireStatus - Constructor                       /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // AcquireStatus::pkgAcquireStatus - Constructor                       /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-pkgAcquireStatus::pkgAcquireStatus() : Update(true), MorePulses(false)
+pkgAcquireStatus::pkgAcquireStatus() : d(NULL), Update(true), MorePulses(false)

 {
    Start();
 }
 {
    Start();
 }


@@ -750,11 +822,11 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
    unsigned int Unknown = 0;
    unsigned int Count = 0;
    for (pkgAcquire::ItemCIterator I = Owner->ItemsBegin(); I != Owner->ItemsEnd();
    unsigned int Unknown = 0;
    unsigned int Count = 0;
    for (pkgAcquire::ItemCIterator I = Owner->ItemsBegin(); I != Owner->ItemsEnd();

-       I++, Count++)
+       ++I, ++Count)

    {
       TotalItems++;
       if ((*I)->Status == pkgAcquire::Item::StatDone)
    {
       TotalItems++;
       if ((*I)->Status == pkgAcquire::Item::StatDone)

-        CurrentItems++;
+        ++CurrentItems;

       
       // Totally ignore local items
       if ((*I)->Local == true)
       
       // Totally ignore local items
       if ((*I)->Local == true)


@@ -764,11 +836,11 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
       if ((*I)->Complete == true)
         CurrentBytes += (*I)->FileSize;
       if ((*I)->FileSize == 0 && (*I)->Complete == false)
       if ((*I)->Complete == true)
         CurrentBytes += (*I)->FileSize;
       if ((*I)->FileSize == 0 && (*I)->Complete == false)

-        Unknown++;
+        ++Unknown;

    }
    
    // Compute the current completion
    }
    
    // Compute the current completion

-   unsigned long ResumeSize = 0;
+   unsigned long long ResumeSize = 0;

    for (pkgAcquire::Worker *I = Owner->WorkersBegin(); I != 0;
        I = Owner->WorkerStep(I))
       if (I->CurrentItem != 0 && I->CurrentItem->Owner->Complete == false)
    for (pkgAcquire::Worker *I = Owner->WorkersBegin(); I != 0;
        I = Owner->WorkerStep(I))
       if (I->CurrentItem != 0 && I->CurrentItem->Owner->Complete == false)


@@ -807,7 +879,7 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
       else
         CurrentCPS = ((CurrentBytes - ResumeSize) - LastBytes)/Delta;
       LastBytes = CurrentBytes - ResumeSize;
       else
         CurrentCPS = ((CurrentBytes - ResumeSize) - LastBytes)/Delta;
       LastBytes = CurrentBytes - ResumeSize;

-      ElapsedTime = (unsigned long)Delta;
+      ElapsedTime = (unsigned long long)Delta;

       Time = NewTime;
    }
 
       Time = NewTime;
    }
 


@@ -818,8 +890,9 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
 
       char msg[200];
       long i = CurrentItems < TotalItems ? CurrentItems + 1 : CurrentItems;
 
       char msg[200];
       long i = CurrentItems < TotalItems ? CurrentItems + 1 : CurrentItems;

-      unsigned long ETA =
-        (unsigned long)((TotalBytes - CurrentBytes) / CurrentCPS);
+      unsigned long long ETA = 0;
+      if(CurrentCPS > 0)
+         ETA = (TotalBytes - CurrentBytes) / CurrentCPS;

 
       // only show the ETA if it makes sense
       if (ETA > 0 && ETA < 172800 /* two days */ )
 
       // only show the ETA if it makes sense
       if (ETA > 0 && ETA < 172800 /* two days */ )


@@ -834,7 +907,9 @@ bool pkgAcquireStatus::Pulse(pkgAcquire *Owner)
             << ":"  << (CurrentBytes/float(TotalBytes)*100.0) 
             << ":" << msg 
             << endl;
             << ":"  << (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;
    }
 
    return true;


@@ -875,13 +950,13 @@ void pkgAcquireStatus::Stop()
    else
       CurrentCPS = FetchedBytes/Delta;
    LastBytes = CurrentBytes;
    else
       CurrentCPS = FetchedBytes/Delta;
    LastBytes = CurrentBytes;

-   ElapsedTime = (unsigned int)Delta;
+   ElapsedTime = (unsigned long long)Delta;

 }
                                                                        /*}}}*/
 // AcquireStatus::Fetched - Called when a byte set has been fetched    /*{{{*/
 // ---------------------------------------------------------------------
 /* This is used to get accurate final transfer rate reporting. */
 }
                                                                        /*}}}*/
 // AcquireStatus::Fetched - Called when a byte set has been fetched    /*{{{*/
 // ---------------------------------------------------------------------
 /* This is used to get accurate final transfer rate reporting. */

-void pkgAcquireStatus::Fetched(unsigned long Size,unsigned long Resume)
+void pkgAcquireStatus::Fetched(unsigned long long Size,unsigned long long Resume)

 {   
    FetchedBytes += Size - Resume;
 }
 {   
    FetchedBytes += Size - Resume;
 }