OM Writer: Added Mark to the format header to identify end of stream correctly...

OM Writer: Added Mark to the format header to identify end of stream correctly (Thanks to Jamie Kydd for the patch)

Doc/changelog.docu

@@ -22,6 +22,7 @@
 <li>OBJ Loader: range check for vertex colors and normals in OBJ loader</li>
 <li>OBJ Loader: fixed handling of negative indices in OBJ loader</li>
 <li>OM Writer: Fixed OMWriter when no faces are available (Thanks to Jamie Kydd for the patch)</li>
+<li>OM Writer: Added Mark to the format header to identify end of stream correctly (Thanks to Jamie Kydd for the patch)</li>
 </ul>
 
 <b>Unittests</b>

src/OpenMesh/Core/IO/OMFormat.hh

@@ -179,7 +179,8 @@ namespace OMFormat {
       Entity_Mesh      = 0x01,
       Entity_Face      = 0x02,
       Entity_Edge      = 0x04,
-      Entity_Halfedge  = 0x06
+      Entity_Halfedge  = 0x06,
+      Entity_Sentinel  = 0x07
     };
 
     enum Dim {

src/OpenMesh/Core/IO/reader/OMReader.cc

@@ -211,6 +211,8 @@ bool _OMReader_::read_binary(std::istream& _is, BaseImporter& _bi, Options& _opt
         if (!read_binary_mesh_chunk(_is, _bi, _opt, swap))
           return false;
         break;
+      case OMFormat::Chunk::Entity_Sentinel:
+        return true;
       default:
         return false;
     }

src/OpenMesh/Core/IO/writer/OMWriter.cc

@@ -430,6 +430,11 @@ bool _OMWriter_::write_binary(std::ostream& _os, BaseExporter& _be,
 				       OMFormat::Chunk::Entity_Mesh, swap );
   }
 
+  memset(&chunk_header, 0, sizeof(chunk_header));
+  chunk_header.name_ = false;
+  chunk_header.entity_ = OMFormat::Chunk::Entity_Sentinel;
+  bytes += store(_os, chunk_header, swap);
+
   std::clog << "#bytes written: " << bytes << std::endl;
 
   return true;