tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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UpdateProduce.cpp (1930B)

      1 // UpdateProduce.cpp
      2 
      3 #include "StdAfx.h"
      4 
      5 #include "UpdateProduce.h"
      6 
      7 using namespace NUpdateArchive;
      8 
      9 static const char * const kUpdateActionSetCollision = "Internal collision in update action set";
     10 
     11 void UpdateProduce(
     12    const CRecordVector<CUpdatePair> &updatePairs,
     13    const CActionSet &actionSet,
     14    CRecordVector<CUpdatePair2> &operationChain,
     15    IUpdateProduceCallback *callback)
     16 {
     17  FOR_VECTOR (i, updatePairs)
     18  {
     19    const CUpdatePair &pair = updatePairs[i];
     20 
     21    CUpdatePair2 up2;
     22    up2.DirIndex = pair.DirIndex;
     23    up2.ArcIndex = pair.ArcIndex;
     24    up2.NewData = up2.NewProps = true;
     25    up2.UseArcProps = false;
     26    
     27    switch (actionSet.StateActions[(unsigned)pair.State])
     28    {
     29      case NPairAction::kIgnore:
     30        if (pair.ArcIndex >= 0 && callback)
     31          callback->ShowDeleteFile(pair.ArcIndex);
     32        continue;
     33 
     34      case NPairAction::kCopy:
     35        if (pair.State == NPairState::kOnlyOnDisk)
     36          throw kUpdateActionSetCollision;
     37        if (pair.State == NPairState::kOnlyInArchive)
     38        {
     39          if (pair.HostIndex >= 0)
     40          {
     41            /*
     42              ignore alt stream if
     43                1) no such alt stream in Disk
     44                2) there is Host file in disk
     45            */
     46            if (updatePairs[pair.HostIndex].DirIndex >= 0)
     47              continue;
     48          }
     49        }
     50        up2.NewData = up2.NewProps = false;
     51        up2.UseArcProps = true;
     52        break;
     53      
     54      case NPairAction::kCompress:
     55        if (pair.State == NPairState::kOnlyInArchive ||
     56            pair.State == NPairState::kNotMasked)
     57          throw kUpdateActionSetCollision;
     58        break;
     59      
     60      case NPairAction::kCompressAsAnti:
     61        up2.IsAnti = true;
     62        up2.UseArcProps = (pair.ArcIndex >= 0);
     63        break;
     64    }
     65 
     66    operationChain.Add(up2);
     67  }
     68  
     69  operationChain.ReserveDown();
     70 }