Split net/spdy into core and chromium subdirectories.

net/spdy/spdy_prefixed_buffer_reader.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/spdy/spdy_prefixed_buffer_reader.h"
-
-#include "base/logging.h"
-
-namespace net {
-
-SpdyPrefixedBufferReader::SpdyPrefixedBufferReader(
-    const char* prefix,
-    size_t prefix_length,
-    const char* suffix,
-    size_t suffix_length)
-    : prefix_(prefix),
-      suffix_(suffix),
-      prefix_length_(prefix_length),
-      suffix_length_(suffix_length) {}
-
-size_t SpdyPrefixedBufferReader::Available() {
-  return prefix_length_ + suffix_length_;
-}
-
-bool SpdyPrefixedBufferReader::ReadN(size_t count, char* out) {
-  if (Available() < count) {
-    return false;
-  }
-
-  if (prefix_length_ >= count) {
-    // Read is fully satisfied by the prefix.
-    std::copy(prefix_, prefix_ + count, out);
-    prefix_ += count;
-    prefix_length_ -= count;
-    return true;
-  } else if (prefix_length_ != 0) {
-    // Read is partially satisfied by the prefix.
-    out = std::copy(prefix_, prefix_ + prefix_length_, out);
-    count -= prefix_length_;
-    prefix_length_ = 0;
-    // Fallthrough to suffix read.
-  }
-  DCHECK(suffix_length_ >= count);
-  // Read is satisfied by the suffix.
-  std::copy(suffix_, suffix_ + count, out);
-  suffix_ += count;
-  suffix_length_ -= count;
-  return true;
-}
-
-bool SpdyPrefixedBufferReader::ReadN(size_t count,
-                                     SpdyPinnableBufferPiece* out) {
-  if (Available() < count) {
-    return false;
-  }
-
-  out->storage_.reset();
-  out->length_ = count;
-
-  if (prefix_length_ >= count) {
-    // Read is fully satisfied by the prefix.
-    out->buffer_ = prefix_;
-    prefix_ += count;
-    prefix_length_ -= count;
-    return true;
-  } else if (prefix_length_ != 0) {
-    // Read is only partially satisfied by the prefix. We need to allocate
-    // contiguous storage as the read spans the prefix & suffix.
-    out->storage_.reset(new char[count]);
-    out->buffer_ = out->storage_.get();
-    ReadN(count, out->storage_.get());
-    return true;
-  } else {
-    DCHECK(suffix_length_ >= count);
-    // Read is fully satisfied by the suffix.
-    out->buffer_ = suffix_;
-    suffix_ += count;
-    suffix_length_ -= count;
-    return true;
-  }
-}
-
-}  // namespace net