1 files changed, 53 insertions, 0 deletions
diff --git a/tensorflow/core/platform/tensor_coding.cc b/tensorflow/core/platform/tensor_coding.cc
new file mode 100644
index 0000000000..a5cbd0ab44
--- /dev/null
+++ b/tensorflow/core/platform/tensor_coding.cc
@@ -0,0 +1,53 @@
+#include "tensorflow/core/platform/tensor_coding.h"
+
+#include "tensorflow/core/lib/core/coding.h"
+#include "tensorflow/core/lib/core/stringpiece.h"
+
+namespace tensorflow {
+namespace port {
+
+void AssignRefCounted(StringPiece src, core::RefCounted* obj, string* out) {
+  out->assign(src.data(), src.size());
+}
+
+void EncodeStringList(const string* strings, int64 n, string* out) {
+  out->clear();
+  for (int i = 0; i < n; ++i) {
+    core::PutVarint32(out, strings[i].size());
+  }
+  for (int i = 0; i < n; ++i) {
+    out->append(strings[i]);
+  }
+}
+
+bool DecodeStringList(const string& src, string* strings, int64 n) {
+  std::vector<uint32> sizes(n);
+  StringPiece reader(src);
+  int64 tot = 0;
+  for (auto& v : sizes) {
+    if (!core::GetVarint32(&reader, &v)) return false;
+    tot += v;
+  }
+  if (tot != static_cast<int64>(reader.size())) {
+    return false;
+  }
+
+  string* data = strings;
+  for (int64 i = 0; i < n; ++i, ++data) {
+    auto size = sizes[i];
+    if (size > reader.size()) {
+      return false;
+    }
+    data->assign(reader.data(), size);
+    reader.remove_prefix(size);
+  }
+
+  return true;
+}
+
+void CopyFromArray(string* s, const char* base, size_t bytes) {
+  s->assign(base, bytes);
+}
+
+}  // namespace port
+}  // namespace tensorflow