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: kenton (at) google.com (Kenton Varda) 32 // Based on original Protocol Buffers design by 33 // Sanjay Ghemawat, Jeff Dean, and others. 34 // 35 // This file exists solely to document the google::protobuf namespace. 36 // It is not compiled into anything, but it may be read by an automated 37 // documentation generator. 38 39 namespace google { 40 41 // Core components of the Protocol Buffers runtime library. 42 // 43 // The files in this package represent the core of the Protocol Buffer 44 // system. All of them are part of the libprotobuf library. 45 // 46 // A note on thread-safety: 47 // 48 // Thread-safety in the Protocol Buffer library follows a simple rule: 49 // unless explicitly noted otherwise, it is always safe to use an object 50 // from multiple threads simultaneously as long as the object is declared 51 // const in all threads (or, it is only used in ways that would be allowed 52 // if it were declared const). However, if an object is accessed in one 53 // thread in a way that would not be allowed if it were const, then it is 54 // not safe to access that object in any other thread simultaneously. 55 // 56 // Put simply, read-only access to an object can happen in multiple threads 57 // simultaneously, but write access can only happen in a single thread at 58 // a time. 59 // 60 // The implementation does contain some "const" methods which actually modify 61 // the object behind the scenes -- e.g., to cache results -- but in these cases 62 // mutex locking is used to make the access thread-safe. 63 namespace protobuf {} 64 } // namespace google 65
