Method WriteInternal

cpp/src/arrow/io/file.cc:773–777

}

Status MemoryMappedFile::WriteInternal(const void* data, int64_t nbytes) {
  memcpy(memory_map_->head(), data, static_cast<size_t>(nbytes));
  memory_map_->advance(nbytes);
  return Status::OK();
}

Status MemoryMappedFile::Resize(int64_t new_size) {
  RETURN_NOT_OK(memory_map_->CheckClosed());