41   if (buf_.Capacity() - buf_.CurrentSize() < left) {  in Append()
42     for (size_t cap = buf_.Capacity();  in Append()
48       if (desired_capacity - buf_.CurrentSize() >= left ||  in Append()
50         buf_.AllocateNewBuffer(desired_capacity, true);  in Append()
57   if (!use_direct_io() && (buf_.Capacity() - buf_.CurrentSize()) < left) {  in Append()
58     if (buf_.CurrentSize() > 0) {  in Append()
64     assert(buf_.CurrentSize() == 0);  in Append()
70   if (use_direct_io() || (buf_.Capacity() >= left)) {  in Append()
72       size_t appended = buf_.Append(src, left);  in Append()
85     assert(buf_.CurrentSize() == 0);  in Append()
100   size_t cap = buf_.Capacity() - buf_.CurrentSize();  in Pad()
107     buf_.PadWith(append_bytes, 0);  in Pad()
115     cap = buf_.Capacity() - buf_.CurrentSize();  in Pad()
173   if (buf_.CurrentSize() > 0) {  in Flush()
181       s = WriteBuffered(buf_.BufferStart(), buf_.CurrentSize());  in Flush()
343   buf_.Size(0);  in WriteBuffered()
365   const size_t alignment = buf_.Alignment();  in WriteDirect()
369   size_t file_advance = TruncateToPageBoundary(alignment, buf_.CurrentSize());  in WriteDirect()
375   size_t leftover_tail = buf_.CurrentSize() - file_advance;  in WriteDirect()
378   buf_.PadToAlignmentWith(0);  in WriteDirect()
380   const char* src = buf_.BufferStart();  in WriteDirect()
382   size_t left = buf_.CurrentSize();  in WriteDirect()
388       size = rate_limiter_->RequestToken(left, buf_.Alignment(),  in WriteDirect()
410         buf_.Size(file_advance + leftover_tail);  in WriteDirect()
426     buf_.RefitTail(file_advance, leftover_tail);  in WriteDirect()