Function ReadFileToString

tensorflow/core/platform/env.cc:394–421

EnvWrapper::~EnvWrapper() {}

Status ReadFileToString(Env* env, const string& fname, string* data) {
  uint64 file_size;
  Status s = env->GetFileSize(fname, &file_size);
  if (!s.ok()) {
    return s;
  }
  std::unique_ptr<RandomAccessFile> file;
  s = env->NewRandomAccessFile(fname, &file);
  if (!s.ok()) {
    return s;
  }
  gtl::STLStringResizeUninitialized(data, file_size);
  char* p = gtl::string_as_array(data);
  StringPiece result;
  s = file->Read(0, file_size, &result, p);
  if (!s.ok()) {
    data->clear();
  } else if (result.size() != file_size) {
    s = errors::Aborted("File ", fname, " changed while reading: ", file_size,
                        " vs. ", result.size());
    data->clear();
  } else if (result.data() == p) {
    // Data is already in the correct location
  } else {
    memmove(p, result.data(), result.size());
  }
  return s;
}

Status WriteStringToFile(Env* env, const string& fname,
                         const StringPiece& data) {