TerraSync: counter to fetch number of bytes which have been extracted from a tarball file

simgear/io/HTTPRepository.cxx

@@ -20,15 +20,16 @@
 
 #include "HTTPRepository.hxx"
 
-#include <iostream>
-#include <cassert>
 #include <algorithm>
-#include <sstream>
+#include <cassert>
+#include <cstdlib>
+#include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <limits>
 #include <map>
 #include <set>
-#include <fstream>
-#include <limits>
-#include <cstdlib>
+#include <sstream>
 
 #include <fcntl.h>
 
@@ -449,6 +450,7 @@ public:
           return;
         }
 
+        compressedBytes = p.sizeInBytes();
         buffer = (uint8_t *)malloc(bufferSize);
       }
 
@@ -461,6 +463,7 @@ public:
           }
 
           size_t rd = file.read((char*)buffer, bufferSize);
+          repo->bytesExtracted += rd;
           extractor.extractBytes(buffer, rd);
 
           if (file.eof()) {
@@ -487,8 +490,14 @@ public:
           return HTTPRepoPrivate::ProcessContinue;
       }
 
+      size_t archiveSizeBytes() const
+      {
+          return compressedBytes;
+      }
+
       ~ArchiveExtractTask() { free(buffer); }
 
+
     private:
       // intentionally small so we extract incrementally on Windows
       // where Defender throttles many small files, sorry
@@ -500,6 +509,7 @@ public:
       uint8_t *buffer = nullptr;
       SGBinaryFile file;
       ArchiveExtractor extractor;
+      std::size_t compressedBytes;
     };
 
     using ArchiveExtractTaskPtr = std::shared_ptr<ArchiveExtractTask>;
@@ -556,7 +566,7 @@ public:
                         auto cb = [t](HTTPRepoPrivate* repo) {
                             return t->run(repo);
                         };
-
+                        _repository->bytesToExtract += t->archiveSizeBytes();
                         _repository->addTask(cb);
                     } else {
                         SG_LOG(SG_TERRASYNC, SG_ALERT, "Unable to remove old file/directory " << removePath);
@@ -952,6 +962,11 @@ size_t HTTPRepository::bytesDownloaded() const
     return result;
 }
 
+size_t HTTPRepository::bytesToExtract() const
+{
+    return _d->bytesToExtract - _d->bytesExtracted;
+}
+
 void HTTPRepository::setInstalledCopyPath(const SGPath& copyPath)
 {
     _d->installedCopyPath = copyPath;

simgear/io/HTTPRepository.hxx

@@ -73,6 +73,8 @@ public:
 
   virtual size_t bytesDownloaded() const;
 
+  virtual size_t bytesToExtract() const;
+
   /**
    * optionally provide the location of an installer copy of this
    * repository. When a file is missing it will be copied from this tree.

simgear/io/HTTPRepository_private.hxx

@@ -61,21 +61,22 @@ public:
   int maxPermittedFailures = 16;
 
   HTTPRepoPrivate(HTTPRepository* parent)
-      : p(parent), isUpdating(false), status(HTTPRepository::REPO_NO_ERROR),
-        totalDownloaded(0) {
-    ;
+      : p(parent)
+  {
   }
 
   ~HTTPRepoPrivate();
 
   HTTPRepository *p; // link back to outer
-  HTTP::Client *http;
+  HTTP::Client* http = nullptr;
   std::string baseUrl;
   SGPath basePath;
-  bool isUpdating;
-  HTTPRepository::ResultCode status;
+  bool isUpdating = false;
+  HTTPRepository::ResultCode status = HTTPRepository::REPO_NO_ERROR;
   HTTPDirectory_ptr rootDir;
-  size_t totalDownloaded;
+  size_t totalDownloaded = 0;
+  size_t bytesToExtract = 0;
+  size_t bytesExtracted = 0;
   HTTPRepository::SyncPredicate syncPredicate;
 
   HTTP::Request_ptr updateFile(HTTPDirectory *dir, const std::string &name,

simgear/scene/tsync/terrasync.cxx

@@ -165,6 +165,7 @@ public:
     SGTimeStamp stamp;
     bool busy = false; ///< is the slot working or idle
     unsigned int pendingKBytes = 0;
+    unsigned int pendingExtractKBytes = 0;
     unsigned int nextWarnTimeout = 0;
 };
 
@@ -197,8 +198,7 @@ static unsigned int syncSlotForType(SyncItem::Type ty)
 
 struct TerrasyncThreadState
 {
-    TerrasyncThreadState() :
-        _busy(false),
+    TerrasyncThreadState() : _busy(false),
                              _stalled(false),
                              _hasServer(false),
                              _fail_count(0),
@@ -208,7 +208,8 @@ struct TerrasyncThreadState
                              _cache_hits(0),
                              _transfer_rate(0),
                              _total_kb_downloaded(0),
-        _totalKbPending(0)
+                             _totalKbPending(0),
+                             _extractTotalKbPending(0)
     {}
 
     bool _busy;
@@ -223,6 +224,7 @@ struct TerrasyncThreadState
     // kbytes, not bytes, because bytes might overflow 2^31
     int _total_kb_downloaded;
     unsigned int _totalKbPending;
+    unsigned int _extractTotalKbPending;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -582,6 +584,7 @@ void SGTerraSync::WorkerThread::updateSyncSlot(SyncSlot &slot)
 #endif
             // convert bytes to kbytes here
             slot.pendingKBytes = (slot.repository->bytesToDownload() >> 10);
+            slot.pendingExtractKBytes = (slot.repository->bytesToExtract() >> 10);
             return; // easy, still working
         }
 
@@ -611,6 +614,7 @@ void SGTerraSync::WorkerThread::updateSyncSlot(SyncSlot &slot)
         slot.busy = false;
         slot.repository.reset();
         slot.pendingKBytes = 0;
+        slot.pendingExtractKBytes = 0;
         slot.currentItem = {};
     }
 
@@ -646,7 +650,8 @@ void SGTerraSync::WorkerThread::updateSyncSlot(SyncSlot &slot)
         slot.nextWarnTimeout = 30 * 1000;
         slot.stamp.stamp();
         slot.busy = true;
-        slot.pendingKBytes = slot.repository->bytesToDownload();
+        slot.pendingKBytes = slot.repository->bytesToDownload() >> 10;
+        slot.pendingExtractKBytes = slot.repository->bytesToExtract() >> 10;
 
         SG_LOG(SG_TERRASYNC, SG_INFO, "sync of " << slot.repository->baseUrl() << " started, queue size is " << slot.queue.size());
     }
@@ -791,20 +796,24 @@ void SGTerraSync::WorkerThread::runInternal()
 
         bool anySlotBusy = false;
         unsigned int newPendingCount = 0;
+        unsigned int newExtractCount = 0; // how much is left to extract
 
         // update each sync slot in turn
         for (unsigned int slot=0; slot < NUM_SYNC_SLOTS; ++slot) {
             updateSyncSlot(_syncSlots[slot]);
             newPendingCount += _syncSlots[slot].pendingKBytes;
+            newExtractCount += _syncSlots[slot].pendingExtractKBytes;
             anySlotBusy |= _syncSlots[slot].busy;
         }
 
         {
             std::lock_guard<std::mutex> g(_stateLock);
             _state._totalKbPending = newPendingCount; // approximately atomic update
+            _state._extractTotalKbPending = newExtractCount;
             _state._busy = anySlotBusy;
         }
 
+
         if (!anySlotBusy) {
             // wait on the blocking deque here, otherwise we spin
             // the loop very fast, since _http::update with no connections
@@ -1130,6 +1139,7 @@ void SGTerraSync::bind()
     _transferRateBytesSecNode = _terraRoot->getNode("transfer-rate-bytes-sec", true);
     _pendingKbytesNode = _terraRoot->getNode("pending-kbytes", true);
     _downloadedKBtesNode = _terraRoot->getNode("downloaded-kbytes", true);
+    _extractPendingKbytesNode = _terraRoot->getNode("extract-pending-kbytes", true);
     _enabledNode = _terraRoot->getNode("enabled", true);
     _availableNode = _terraRoot->getNode("available", true);
     _maxErrorsNode = _terraRoot->getNode("max-errors", true);
@@ -1155,6 +1165,7 @@ void SGTerraSync::unbind()
     _transferRateBytesSecNode.clear();
     _pendingKbytesNode.clear();
     _downloadedKBtesNode.clear();
+    _extractPendingKbytesNode.clear();
     _enabledNode.clear();
     _availableNode.clear();
     _maxErrorsNode.clear();
@@ -1191,6 +1202,7 @@ void SGTerraSync::update(double)
     _transferRateBytesSecNode->setIntValue(copiedState._transfer_rate);
     _pendingKbytesNode->setIntValue(copiedState._totalKbPending);
     _downloadedKBtesNode->setIntValue(copiedState._total_kb_downloaded);
+    _extractPendingKbytesNode->setIntValue(copiedState._extractTotalKbPending);
 
     _stalledNode->setBoolValue(_workerThread->isStalled());
     _activeNode->setBoolValue(worker_running);

simgear/scene/tsync/terrasync.hxx

@@ -107,6 +107,7 @@ private:
     SGPropertyNode_ptr _transferRateBytesSecNode;
     SGPropertyNode_ptr _pendingKbytesNode;
     SGPropertyNode_ptr _downloadedKBtesNode;
+    SGPropertyNode_ptr _extractPendingKbytesNode;
     SGPropertyNode_ptr _maxErrorsNode;
 
     // we manually bind+init TerraSync during early startup