34       buffer_(),  in Reader()
65     uint64_t physical_record_offset = end_of_buffer_offset_ - buffer_.size();  in ReadRecord()
224   size_t consumed_bytes = eof_offset_ - buffer_.size();  in UnmarkEOFInternal()
230   if (buffer_.data() != backing_store_ + consumed_bytes) {  in UnmarkEOFInternal()
233     memmove(backing_store_ + consumed_bytes, buffer_.data(), buffer_.size());  in UnmarkEOFInternal()
258   buffer_ = Slice(backing_store_ + consumed_bytes,  in UnmarkEOFInternal()
282     buffer_.clear();  in ReadMore()
283     Status status = file_->Read(kBlockSize, &buffer_, backing_store_);  in ReadMore()
284     end_of_buffer_offset_ += buffer_.size();  in ReadMore()
286       buffer_.clear();  in ReadMore()
291     } else if (buffer_.size() < static_cast<size_t>(kBlockSize)) {  in ReadMore()
293       eof_offset_ = buffer_.size();  in ReadMore()
301     if (buffer_.size()) {  in ReadMore()
302       *drop_size = buffer_.size();  in ReadMore()
303       buffer_.clear();  in ReadMore()
307     buffer_.clear();  in ReadMore()
316     if (buffer_.size() < static_cast<size_t>(kHeaderSize)) {  in ReadPhysicalRecord()
328     const char* header = buffer_.data();  in ReadPhysicalRecord()
335       if (end_of_buffer_offset_ - buffer_.size() == 0) {  in ReadPhysicalRecord()
340       if (buffer_.size() < static_cast<size_t>(kRecyclableHeaderSize)) {  in ReadPhysicalRecord()
352     if (header_size + length > buffer_.size()) {  in ReadPhysicalRecord()
353       *drop_size = buffer_.size();  in ReadPhysicalRecord()
354       buffer_.clear();  in ReadPhysicalRecord()
373       buffer_.clear();  in ReadPhysicalRecord()
386         *drop_size = buffer_.size();  in ReadPhysicalRecord()
387         buffer_.clear();  in ReadPhysicalRecord()
392     buffer_.remove_prefix(header_size + length);  in ReadPhysicalRecord()
407   uint64_t physical_record_offset = end_of_buffer_offset_ - buffer_.size();  in ReadRecord()
512     buffer_.clear();  in TryReadMore()
513     Status status = file_->Read(kBlockSize, &buffer_, backing_store_);  in TryReadMore()
514     end_of_buffer_offset_ += buffer_.size();  in TryReadMore()
516       buffer_.clear();  in TryReadMore()
521     } else if (buffer_.size() < static_cast<size_t>(kBlockSize)) {  in TryReadMore()
523       eof_offset_ = buffer_.size();  in TryReadMore()
535   *drop_size = buffer_.size();  in TryReadMore()
536   if (buffer_.size() > 0) {  in TryReadMore()
539   buffer_.clear();  in TryReadMore()
550   while (buffer_.size() < static_cast<size_t>(kHeaderSize)) {  in TryReadFragment()
551     size_t old_size = buffer_.size();  in TryReadFragment()
556     } else if (old_size == buffer_.size()) {  in TryReadFragment()
560   const char* header = buffer_.data();  in TryReadFragment()
567     if (end_of_buffer_offset_ - buffer_.size() == 0) {  in TryReadFragment()
571     while (buffer_.size() < static_cast<size_t>(kRecyclableHeaderSize)) {  in TryReadFragment()
572       size_t old_size = buffer_.size();  in TryReadFragment()
577       } else if (old_size == buffer_.size()) {  in TryReadFragment()
588   while (header_size + length > buffer_.size()) {  in TryReadFragment()
589     size_t old_size = buffer_.size();  in TryReadFragment()
594     } else if (old_size == buffer_.size()) {  in TryReadFragment()
600     buffer_.clear();  in TryReadFragment()
609       *drop_size = buffer_.size();  in TryReadFragment()
610       buffer_.clear();  in TryReadFragment()
616   buffer_.remove_prefix(header_size + length);  in TryReadFragment()