changed copy method from clunky to using sendfile(). should be 1. faster and 2. require less memory

1 files changed, 51 insertions, 26 deletions

diff --git a/noncore/apps/advancedfm/advancedfmMenu.cpp b/noncore/apps/advancedfm/advancedfmMenu.cpp
index 93203cd..eae86a4 100644
--- a/noncore/apps/advancedfm/advancedfmMenu.cpp
+++ b/noncore/apps/advancedfm/advancedfmMenu.cpp
@@ -15,65 +15,66 @@
 
 #include <opie/otabwidget.h>
 #include <opie/oprocess.h>
 
 #include <qpe/lnkproperties.h>
 #include <qpe/qpeapplication.h>
 #include <qpe/qpemenubar.h>
 #include <qpe/qpetoolbar.h>
 #include <qpe/resource.h>
 #include <qpe/qcopenvelope_qws.h>
 #include <qpe/applnk.h>
 #include <qpe/ir.h>
 
 #include <qmessagebox.h>
 #include <qmultilineedit.h>
 
 #include <qstring.h>
 
 #include <qlayout.h>
 #include <qpixmap.h>
 #include <qcombobox.h>
 #include <qpopupmenu.h>
 #include <qtabwidget.h>
 #include <qtoolbutton.h>
 #include <qtabwidget.h>
 #include <qlineedit.h>
 #include <qlistview.h>
 
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <dirent.h>
-
+#include <sys/sendfile.h>
+#include <fcntl.h>
 
 void AdvancedFm::doDirChange()
 {
   ListClicked( CurrentView()->currentItem());
 }
 
 void AdvancedFm::showMenuHidden()
 {
   if (b)
     {
       CurrentDir()->setFilter( QDir::Files | QDir::Dirs | QDir::Hidden | QDir::All);
       OtherDir()->setFilter( QDir::Files | QDir::Dirs | QDir::Hidden | QDir::All);
       fileMenu->setItemChecked( fileMenu->idAt(0),TRUE);
 //    b=FALSE;
 
     }
   else
     {
       CurrentDir()->setFilter( QDir::Files | QDir::Dirs/* | QDir::Hidden*/ | QDir::All);
       OtherDir()->setFilter( QDir::Files | QDir::Dirs/* | QDir::Hidden*/ | QDir::All);
       fileMenu->setItemChecked( fileMenu->idAt(0),FALSE);
 //    b=TRUE;
     }
   rePopulate();
 //    if(b) qDebug("<<<<<<<<<<<<<<<<<<<<<<<<<<<< true");
     if(b) b = false; else b = true;
 }
 
 void AdvancedFm::showHidden()
 {
   if (b)
     {
@@ -283,65 +284,65 @@ void AdvancedFm::doProperties()
 #endif
 
 }
 
 void AdvancedFm::upDir()
 {
   QDir *thisDir = CurrentDir();
   QString current = thisDir->canonicalPath();
   QDir dir(current);
   dir.cdUp();
   current = dir.canonicalPath();
   chdir( current.latin1() );
   thisDir->cd(  current, TRUE);
 
   populateView();
   update();
 }
 
 void AdvancedFm::copy()
 {
   qApp->processEvents();
   QStringList curFileList = getPath();
 
   QDir *thisDir = CurrentDir();
   QDir *thatDir = OtherDir();
 
   bool doMsg=true;
   int count=curFileList.count();
   if( count > 0) {
     if(count > 1 ){
       QString msg;
       msg=tr("Really copy\n%1 files?").arg(count);
-      switch ( QMessageBox::warning(this,tr("Delete"),msg
+      switch ( QMessageBox::warning(this,tr("Copy"),msg
                                     ,tr("Yes"),tr("No"),0,0,1) )
         {
         case 0:
           doMsg=false;
           break;
         case 1:
           return;
           break;
         };
     }
 
     QString curFile, item, destFile;
     for ( QStringList::Iterator it = curFileList.begin(); it != curFileList.end(); ++it )
       {
         item=(*it);
         if(item.find("->",0,TRUE)) //symlink
           item = item.left(item.find("->",0,TRUE));
 
         curFile = thisDir->canonicalPath()+"/"+ item;
         destFile = thatDir->canonicalPath()+"/"+ item;
 
         qDebug("Destination file is "+destFile);
         qDebug("CurrentFile file is " + curFile);
 
         QFile f(destFile);
         if( f.exists())
           {
             if(doMsg)
               {
                 switch ( QMessageBox::warning(this,tr("File Exists!"),
                                               tr("%1 exists. Ok to overwrite?").arg( item ),
                                               tr("Yes"),tr("No"),0,0,1) )
@@ -491,90 +492,114 @@ void AdvancedFm::move()
           QString destFile =  thatDir->canonicalPath();
 
           if(destFile.right(1).find("/",0,TRUE) == -1)
             destFile+="/";
           destFile += item;
           qDebug("Destination file is "+destFile);
 
           curFile = thisDir->canonicalPath();
           if(curFile.right(1).find("/",0,TRUE) == -1)
             curFile +="/";
           curFile+= item;
           qDebug("CurrentFile file is " + curFile);
 
           QFile f( curFile);
           if( f.exists()) {
             if( !copyFile(  curFile, destFile) )
               {
                 QMessageBox::message(tr("Note"),tr("Could not move\n")+curFile);
                 return;
               } else
                 QFile::remove(curFile);
           }
         }
 
     }
     setOtherTabCurrent();
       populateView();
 //      populateLocalView();
 }
 
 bool AdvancedFm::copyFile( const QString & src, const QString & dest )
 {
-  char bf[ 50000 ];
-  int  bytesRead;
-  bool success = TRUE;
-  struct stat status;
+//    char bf[ 50000 ];
+//    int  bytesRead;
+   bool success = true;
+   struct stat status;
+
+//    QFile s( src );
+//    QFile d( dest );
+
+   int read_fd=0;
+   int write_fd=0;
+   struct stat stat_buf;
+   off_t offset = 0;
+   read_fd = ::open(src.latin1(), O_RDONLY);
+   if(read_fd != -1) {
+      fstat (read_fd, &stat_buf);
+      write_fd = ::open(dest.latin1(), O_WRONLY | O_CREAT, stat_buf.st_mode);
+      if(write_fd != -1) {
+         if(sendfile(write_fd, read_fd, &offset, stat_buf.st_size) == -1) {
+            success = false;
+         }
+      } else {
+         success = false;
+      }
+   } else {
+      success = false;
+   }
 
-  QFile s( src );
-  QFile d( dest );
+   ::close (read_fd);
+   ::close (write_fd);
 
-  if( s.open( IO_ReadOnly | IO_Raw ) &&  d.open( IO_WriteOnly | IO_Raw ) )
-    {
-      while( (bytesRead = s.readBlock( bf, sizeof( bf ) )) == sizeof( bf ) )
-        {
-        if( d.writeBlock( bf, sizeof( bf ) ) != sizeof( bf ) ){
-          success = FALSE;
-          break;
-        }
-      }
-      if( success && (bytesRead > 0) )
-        {
-          d.writeBlock( bf, bytesRead );
-        }
-    }
-  else
-    {
-      success = FALSE;
-    }
+
+//    if( s.open( IO_ReadOnly | IO_Raw ) &&  d.open( IO_WriteOnly | IO_Raw ) )
+// {
+//    while( (bytesRead = s.readBlock( bf, sizeof( bf ) )) == sizeof( bf ) )
+//         {
+//         if( d.writeBlock( bf, sizeof( bf ) ) != sizeof( bf ) ){
+//           success = FALSE;
+//           break;
+//         }
+//       }
+//       if( success && (bytesRead > 0) )
+//         {
+//           d.writeBlock( bf, bytesRead );
+//         }
+
+//     }
+//   else
+//     {
+//       success = FALSE;
+//     }
 
     // Set file permissions
   if( stat( (const char *) src, &status ) == 0 )
     {
       chmod( (const char *) dest, status.st_mode );
     }
 
   return success;
 }
 
 void AdvancedFm::runCommand()
 {
   QDir *thisDir = CurrentDir();
 
   QString curFile;
   curFile = thisDir->canonicalPath() +"/"+ CurrentView()->currentItem()->text(0);
 
   InputDialog *fileDlg;
   fileDlg = new InputDialog(this,tr("Run Command"),TRUE, 0);
   fileDlg->setInputText(curFile);
   fileDlg->exec();
     //QString command;
 
   if( fileDlg->result() == 1 )
     {
       qDebug(fileDlg->LineEdit1->text());
       QStringList command;
 
       command << "/bin/sh";
       command << "-c";
       command <<  fileDlg->LineEdit1->text();
       Output *outDlg;