Squashed 'subtree/rabit/' changes from 16975b4..b15f6cd

b15f6cd rabit unifires with dmlc
5634ec3 ok
2dd6c2f Merge branch 'master' of ssh://github.com/dmlc/rabit
38d7f99 checkin wormhole spliter
8acb96a Merge pull request #10 from ryanzz/master
911a1f0 fixed a mistake
732d8c3 inteface changing
684ea0a inteface changing
8cb4c02 add dmlc support
be2ff70 allow adapting wormhole

git-subtree-dir: subtree/rabit
git-subtree-split: b15f6cd2ac

include/rabit/io.h

@@ -16,19 +16,8 @@
 
 namespace rabit {
 namespace utils {
-/*! \brief interface of i/o stream that support seek */
-class ISeekStream: public IStream {
- public:
-  // virtual destructor
-  virtual ~ISeekStream(void) {}
-  /*! \brief seek to certain position of the file */
-  virtual void Seek(size_t pos) = 0;
-  /*! \brief tell the position of the stream */
-  virtual size_t Tell(void) = 0;
-  /*! \return whether we are at end of file */
-  virtual bool AtEnd(void) const = 0;
-};
-
+/*! \brief re-use definition of dmlc::ISeekStream */
+typedef dmlc::ISeekStream ISeekStream;
 /*! \brief fixed size memory buffer */
 struct MemoryFixSizeBuffer : public ISeekStream {
  public: