clean-up

[creaImageIO.git] / src2 / creaImageIOMultiThreadImageReader.cpp

diff --git a/src2/creaImageIOMultiThreadImageReader.cpp b/src2/creaImageIOMultiThreadImageReader.cpp
index 717b09cb89699f7adf87afb3f5be9f79e1719d72..5871d8044774da930d67e3d9d033d8cb75bdd175 100644 (file)
--- a/src2/creaImageIOMultiThreadImageReader.cpp
+++ b/src2/creaImageIOMultiThreadImageReader.cpp
@@ -3,6 +3,7 @@
 #include <wx/utils.h>
 #include <creaImageIOSystem.h>
 
+
 namespace creaImageIO
 {
 
@@ -13,6 +14,7 @@ namespace creaImageIO
     vtkImageData* image)
   {
     wxMutexLocker lock(mMultiThreadImageReaderUserMutex);
+
     this->OnMultiThreadImageReaderEvent(filename,type,image);
   }
   //=====================================================================
@@ -30,11 +32,22 @@ namespace creaImageIO
 
     vtkImageData* Read(const std::string& filename);
     
+       struct deleter
+       {
+               void operator()(ThreadedImageReader* p)
+               {
+                       p->Delete();
+               }
+       };
+       friend struct deleter;
+
 
   private:
     ImageReader mReader;
     MultiThreadImageReader* mMultiThreadImageReader;
+       
   };
+
   //=====================================================================
 
   
@@ -43,7 +56,7 @@ namespace creaImageIO
     : //mDoNotSignal(false),
       mReader(0),
       mTotalMem(0),
-      mTotalMemMax(100000)
+      mTotalMemMax(1000000)
   {
     //    std::cout << "#### MultiThreadImageReader::MultiThreadImageReader("
     //       << " #threads= " << number_of_threads <<" )"<<std::endl;
@@ -51,8 +64,11 @@ namespace creaImageIO
     // Create the threads
     for (int i=0; i<number_of_threads; i++) 
       {
-       ThreadedImageReader* t = new ThreadedImageReader(this);
+                 //ThreadedImageReader* t = new ThreadedImageReader(this);
+                 boost::shared_ptr<ThreadedImageReader> t(new ThreadedImageReader(this), ThreadedImageReader::deleter());
        mThreadedImageReaderList.push_back(t);
+        std::cout << "  ===> Thread "<<i
+                     <<" successfully added"<< std::endl;
       }
     mNumberOfThreadedReadersRunning = 0;
     // Init the queue
@@ -60,10 +76,10 @@ namespace creaImageIO
     mQueue.set(mIndexer);
     // 
     // no thread : alloc self reader
-    if (number_of_threads==0)
-      {
+//    if (number_of_threads==0)
+//      {
        mReader = new ImageReader();
-      }
+//      }
   }
   //=====================================================================
 
@@ -74,6 +90,8 @@ namespace creaImageIO
 
     //    std::cout << "#### MultiThreadImageReader::Start()"
     //               <<std::endl;
+         if (mNumberOfThreadedReadersRunning > 0) return true;
+         
     ThreadedImageReaderListType::iterator i;
     for (i =mThreadedImageReaderList.begin();
         i!=mThreadedImageReaderList.end();
@@ -87,8 +105,8 @@ namespace creaImageIO
          }
        else 
          {
-           //      std::cout << "  ===> Thread "<<(*i)->GetCurrentId()
-           //                <<" successfully created"<< std::endl;
+                   std::cout << "  ===> Thread "<<(*i)->GetCurrentId()
+                             <<" successfully created"<< std::endl;
            
          }
       }
@@ -111,10 +129,15 @@ namespace creaImageIO
     for (i =mThreadedImageReaderList.begin();
         i!=mThreadedImageReaderList.end();
         i++)
-      {
-       (*i)->Delete();
+      { std::cout << "  ===> Thread "<<(*i)->GetCurrentId()
+                             <<" successfully stopped"<< std::endl;
+                 if((*i)->IsAlive())
+                 {
+                         (*i).reset();
+                        //(*i)->Delete();
+                 }
       }
-    mThreadedImageReaderList.clear();
+ //  mThreadedImageReaderList.clear();
     // Wait a little to be sure that all threads have stopped
     // A better way to do this ?
     //    wxMilliSleep(1000);
@@ -124,7 +147,7 @@ namespace creaImageIO
     do 
       {
        // Sleep a little
-       wxMilliSleep(10);
+               wxMilliSleep(10);
        // Lock
        {
          wxMutexLocker locker(GetMultiThreadImageReaderUserMutex());
@@ -159,6 +182,7 @@ namespace creaImageIO
     //       <<std::endl;
     Stop();
     if (mReader) delete mReader;
+       mThreadedImageReaderList.clear();
   }
   //=====================================================================
 
@@ -187,9 +211,10 @@ namespace creaImageIO
                                        const std::string& filename, 
                                        int priority )
   {
-    wxMutexLocker lock(GetMultiThreadImageReaderUserMutex()); //mMutex);
-    
-    if (mThreadedImageReaderList.size()==0) 
+       wxMutexLocker lock(GetMultiThreadImageReaderUserMutex()); //mMutex);
+
+         if (mNumberOfThreadedReadersRunning==0)
+//    if (mThreadedImageReaderList.size()==0) 
       {
        // no detached reader : use self reader
        ImageToLoad itl(user,filename);
@@ -216,7 +241,6 @@ namespace creaImageIO
        return;
       }
 
-
     ImageToLoad itl(user,filename);
     ImageMapType::iterator i = mImages.find(&itl);
     if (i!=mImages.end())
@@ -272,7 +296,8 @@ namespace creaImageIO
       }
     else if (e==MultiThreadImageReaderUser::ThreadedReaderStopped)
       {
-       mNumberOfThreadedReadersRunning--;
+       
+                mNumberOfThreadedReadersRunning--;
        //      std::cout << "#TR=" << mNumberOfThreadedReadersRunning << std::endl;
       }
   }
@@ -281,15 +306,21 @@ namespace creaImageIO
   //=====================================================================
   vtkImageData* MultiThreadImageReader::GetImage(const std::string& filename)
   {
-    
-    //    std::cout << "** MultiThreadImageReader::GetImage('"<<filename<<"')"
-    //       <<std::endl;
+        // Start();
+    //       std::cout << "** MultiThreadImageReader::GetImage('"<<filename<<"')"
+    //          <<std::endl;
     
     do 
       {
-       wxMutexLocker lock(GetMultiThreadImageReaderUserMutex()); //mMutex);
+       //      wxMutexLocker lock(GetMultiThreadImageReaderUserMutex()); //mMutex);
                
-       if (mThreadedImageReaderList.size()==0)
+       //     std::cout << "** MultiThreadImageReader::GetImage('"<<filename
+       //             <<"') lock ok"
+       //               <<std::endl;
+    
+       //                if (mNumberOfThreadedReadersRunning==0)
+       //      if (mThreadedImageReaderList.size()==0)
+       if (true)
          {
            ImageToLoad itl(this,filename);
            ImageMapType::iterator i = mImages.find(&itl);
@@ -312,7 +343,8 @@ namespace creaImageIO
                                 GetMaximalPriorityWithoutLocking()+1);
            return pitl->GetImage();
          }
-       
+
+       /*      
        mRequestedFilename = filename;
        mRequestedImage = 0;
        ImageToLoad itl(this,filename);
@@ -351,11 +383,13 @@ namespace creaImageIO
            mImages[pitl] = 0;
            mQueue.insert(pitl);
          }
+       */
       }
     while (0);
 
     //    std::cout << "Waiting..."<<std::endl;
 
+    /*
     // Waiting that it is read
     int n = 0;
     do 
@@ -375,7 +409,7 @@ namespace creaImageIO
       }
     while (true);
     // 
-    
+    */
   }
   //=====================================================================
   
@@ -433,19 +467,32 @@ namespace creaImageIO
        ImageToLoadPtr unload = mUnloadQueue.remove_top();
        MultiThreadImageReaderUser* user = unload->GetUser();
 
+       /*
        if ((user!=0)&&(user!=this)) 
          {
            user->GetMultiThreadImageReaderUserMutex().Lock();
          }
+       */
 
+       std::string filename = unload->GetFilename();
 
-       GimmickMessage(5,"'" << unload->GetFilename() << "'" << std::endl);
+       GimmickMessage(5,"'" << filename << "'" << std::endl);
        mTotalMem -= unload->GetImage()->GetEstimatedMemorySize();
 
        GimmickMessage(5," ==> Total mem = "<<mTotalMem<<" Ko "<<std::endl);
-       
 
-       std::string filename = unload->GetFilename();
+       if (user!=0) 
+         {
+           //      std::cout << "unlock..."<<std::endl;
+           //   user->GetMultiThreadImageReaderUserMutex().Unlock();
+           //      std::cout << "event"<<std::endl;
+           user->MultiThreadImageReaderSendEvent
+             (filename,
+              MultiThreadImageReaderUser::ImageUnloaded,
+              0);
+           //      std::cout << "event ok"<<std::endl;
+         }     
+
        if (unload->Index()>=0)
          {
            // GimmickMessage(5,"still in queue"<<std::endl);
@@ -462,21 +509,7 @@ namespace creaImageIO
        delete unload;
        //          std::cout << "delete ok."<<std::endl;
 
-       if (user!=0) 
-         {
-           //      std::cout << "unlock..."<<std::endl;
-           user->GetMultiThreadImageReaderUserMutex().Unlock();
-           //      std::cout << "event"<<std::endl;
-           user->MultiThreadImageReaderSendEvent
-             (filename,
-              MultiThreadImageReaderUser::ImageUnloaded,
-              0);
-           //      std::cout << "event ok"<<std::endl;
-
-         }
       }
-    
-  
   }
   //=====================================================================
 
@@ -526,8 +559,7 @@ namespace creaImageIO
     // While was not deleted 
     while (!TestDestroy())
       {
-       //      std::cout << "### Thread "<<GetCurrentId()<<" waiting for image"
-       //        << std::endl;
+               //std::cout << "### Thread "<<GetCurrentId()<<" still alive"  << std::endl;
          
        // Lock the mutex
        mMultiThreadImageReader->MultiThreadImageReaderEventLock();