78     : pos_(static_cast<const uint8_t*>(start)),  in InputStreamBuffer()
80   NVRAM_CHECK(pos_ <= end_);  in InputStreamBuffer()
84   return pos_ >= end_ && !Advance();  in Done()
89   NVRAM_CHECK(pos_ <= end_);  in Read()
90   while (size > static_cast<size_t>(end_ - pos_)) {  in Read()
91     memcpy(buffer, pos_, end_ - pos_);  in Read()
92     buffer += end_ - pos_;  in Read()
93     size -= end_ - pos_;  in Read()
94     pos_ = end_;  in Read()
98     NVRAM_CHECK(pos_ < end_);  in Read()
100   memcpy(buffer, pos_, size);  in Read()
101   pos_ += size;  in Read()
106   if (pos_ >= end_) {  in ReadByte()
110     NVRAM_CHECK(pos_ < end_);  in ReadByte()
112   *byte = *pos_;  in ReadByte()
113   ++pos_;  in ReadByte()
118   NVRAM_CHECK(pos_ <= end_);  in Skip()
119   while (size > static_cast<size_t>(end_ - pos_)) {  in Skip()
120     size -= end_ - pos_;  in Skip()
121     pos_ = end_;  in Skip()
125     NVRAM_CHECK(pos_ < end_);  in Skip()
127   pos_ += size;  in Skip()
137     : InputStreamBuffer(delegate->pos_, ClampEnd(delegate, size)),  in NestedInputStreamBuffer()
142   remaining_ -= end_ - delegate_->pos_;  in Advance()
144     delegate_->pos_ = end_;  in Advance()
148   pos_ = delegate_->pos_;  in Advance()
156   NVRAM_CHECK(delegate->pos_ <= delegate->end_);  in ClampEnd()
157   return size < static_cast<size_t>(delegate->end_ - delegate->pos_)  in ClampEnd()
158              ? delegate->pos_ + size  in ClampEnd()
166     : pos_(static_cast<uint8_t*>(start)), end_(static_cast<uint8_t*>(end)) {  in OutputStreamBuffer()
167   NVRAM_CHECK(pos_ <= end_);  in OutputStreamBuffer()
171   return pos_ >= end_ && !Advance();  in Done()
176   NVRAM_CHECK(pos_ <= end_);  in Write()
177   while (size > static_cast<size_t>(end_ - pos_)) {  in Write()
178     memcpy(pos_, buffer, end_ - pos_);  in Write()
179     buffer += end_ - pos_;  in Write()
180     size -= end_ - pos_;  in Write()
181     pos_ = end_;  in Write()
185     NVRAM_CHECK(pos_ < end_);  in Write()
187   memcpy(pos_, buffer, size);  in Write()
188   pos_ += size;  in Write()
193   if (pos_ >= end_) {  in WriteByte()
197     NVRAM_CHECK(pos_ < end_);  in WriteByte()
199   *pos_ = byte;  in WriteByte()
200   ++pos_;  in WriteByte()
212   bytes_written_ += pos_ - scratch_space_;  in Advance()
213   pos_ = scratch_space_;  in Advance()
224   ptrdiff_t offset = pos_ - blob_->data();  in Advance()
228   pos_ = blob_->data() + offset;  in Advance()
234   if (!blob_->Resize(pos_ - blob_->data())) {  in Truncate()
238   pos_ = end_;  in Truncate()