new dmlc interface

src/io/dmlc_simple.cpp

@@ -25,7 +25,7 @@ class SingleFileSplit : public dmlc::InputSplit {
   virtual ~SingleFileSplit(void) {
     if (!use_stdin_) std::fclose(fp_);
   }
-  virtual bool ReadLine(std::string *out_data) {
+  virtual bool ReadRecord(std::string *out_data) {
     if (end_of_file_) return false;
     out_data->clear();
     while (true) {

src/io/simple_dmatrix-inl.hpp

@@ -94,7 +94,7 @@ class DMatrixSimple : public DataMatrix {
         dmlc::InputSplit::Create(uri, rank, npart);
     this->Clear();
     std::string line;
-    while (in->ReadLine(&line)) {
+    while (in->ReadRecord(&line)) {
       float label;
       std::istringstream ss(line);
       std::vector<RowBatch::Entry> feats;