1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/
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 //
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
14 // distribution.
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
18 //
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 <google/protobuf/io/zero_copy_stream_impl_lite.h>
41 #include <string>
42 #include <google/protobuf/stubs/stl_util.h>
43
44 namespace google {
45 namespace protobuf {
46 namespace io {
47
InternalReadStringInline(string * buffer,int size)48 inline bool CodedInputStream::InternalReadStringInline(string* buffer,
49 int size) {
50 if (size < 0) return false; // security: size is often user-supplied
51
52 if (BufferSize() >= size) {
53 STLStringResizeUninitialized(buffer, size);
54 // When buffer is empty, string_as_array(buffer) will return NULL but memcpy
55 // requires non-NULL pointers even when size is 0. Hench this check.
56 if (size > 0) {
57 memcpy(mutable_string_data(buffer), buffer_, size);
58 Advance(size);
59 }
60 return true;
61 }
62
63 return ReadStringFallback(buffer, size);
64 }
65
66 } // namespace io
67 } // namespace protobuf
68 } // namespace google
69 #endif // GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__
70