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 (at) 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/stubs/logging.h> 40 #include <google/protobuf/stubs/common.h> 41 #include <google/protobuf/io/coded_stream.h> 42 #include <google/protobuf/io/zero_copy_stream_impl_lite.h> 43 #include <string> 44 #include <google/protobuf/stubs/stl_util.h> 45 46 namespace google { 47 namespace protobuf { 48 namespace io { 49 50 inline bool CodedInputStream::InternalReadStringInline(string* buffer, 51 int size) { 52 if (size < 0) return false; // security: size is often user-supplied 53 54 if (BufferSize() >= size) { 55 STLStringResizeUninitialized(buffer, size); 56 std::pair<char*, bool> z = as_string_data(buffer); 57 if (z.second) { 58 // Oddly enough, memcpy() requires its first two args to be non-NULL even 59 // if we copy 0 bytes. So, we have ensured that z.first is non-NULL here. 60 GOOGLE_DCHECK(z.first != NULL); 61 memcpy(z.first, buffer_, size); 62 Advance(size); 63 } 64 return true; 65 } 66 67 return ReadStringFallback(buffer, size); 68 } 69 70 inline bool CodedInputStream::InternalReadRawInline(void* buffer, int size) { 71 int current_buffer_size; 72 while ((current_buffer_size = BufferSize()) < size) { 73 // Reading past end of buffer. Copy what we have, then refresh. 74 memcpy(buffer, buffer_, current_buffer_size); 75 buffer = reinterpret_cast<uint8*>(buffer) + current_buffer_size; 76 size -= current_buffer_size; 77 Advance(current_buffer_size); 78 if (!Refresh()) return false; 79 } 80 81 memcpy(buffer, buffer_, size); 82 Advance(size); 83 84 return true; 85 } 86 87 } // namespace io 88 } // namespace protobuf 89 } // namespace google 90 #endif // GOOGLE_PROTOBUF_IO_CODED_STREAM_INL_H__ 91
