1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc.  All rights reserved.
3// http://code.google.com/p/protobuf/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are
7// met:
8//
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10// notice, this list of conditions and the following disclaimer.
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13// in the documentation and/or other materials provided with the
14// distribution.
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16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
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20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: jasonh@google.com (Jason Hsueh)
32//
33// Implements methods of coded_stream.h that need to be inlined for performance
34// reasons, but should not be defined in a public header.
35
36#ifndef GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
37#define GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
38
39#include <google/protobuf/io/coded_stream.h>
40#include <string>
41#include <google/protobuf/stubs/stl_util.h>
42
43namespace google {
44namespace protobuf {
45namespace io {
46
47inline bool CodedInputStream::InternalReadStringInline(string* buffer,
48                                                       int size) {
49  if (size < 0) return false;  // security: size is often user-supplied
50
51  if (BufferSize() >= size) {
52    STLStringResizeUninitialized(buffer, size);
53    // When buffer is empty, string_as_array(buffer) will return NULL but memcpy
54    // requires non-NULL pointers even when size is 0. Hench this check.
55    if (size > 0) {
56      memcpy(string_as_array(buffer), buffer_, size);
57      Advance(size);
58    }
59    return true;
60  }
61
62  return ReadStringFallback(buffer, size);
63}
64
65}  // namespace io
66}  // namespace protobuf
67}  // namespace google
68#endif  // GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
69