Change ownership of file within InputBuffer to not own the file.

Change callers to manually delete the file.

Having InputBuffer own the file makes it difficult to use this low level
primitive inside of other libraries that do not own the file (e.g.,
RecordReader).  So we change this implementation to never own its file
and rely on the callers to manage lifetime.
Change: 125095051

1 files changed, 2 insertions, 0 deletions

diff --git a/tensorflow/core/kernels/range_sampler.cc b/tensorflow/core/kernels/range_sampler.cc
index 2fdfa035ab..c2a7c14777 100644
--- a/tensorflow/core/kernels/range_sampler.cc
+++ b/tensorflow/core/kernels/range_sampler.cc
@@ -279,6 +279,8 @@ Status FixedUnigramSampler::LoadFromFile(Env* env, const string& vocab_file,
                                          float distortion) {
   RandomAccessFile* file;
   TF_RETURN_IF_ERROR(env->NewRandomAccessFile(vocab_file, &file));
+  std::unique_ptr<RandomAccessFile> deleter(file);
+
   io::InputBuffer in(file, 262144 /*bytes*/);
   string line;
   int32 word_id = weights_.size();