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00001 // Protocol Buffers - Google's data interchange format 00002 // Copyright 2008 Google Inc. All rights reserved. 00003 // http://code.google.com/p/protobuf/ 00004 // 00005 // Redistribution and use in source and binary forms, with or without 00006 // modification, are permitted provided that the following conditions are 00007 // met: 00008 // 00009 // * Redistributions of source code must retain the above copyright 00010 // notice, this list of conditions and the following disclaimer. 00011 // * Redistributions in binary form must reproduce the above 00012 // copyright notice, this list of conditions and the following disclaimer 00013 // in the documentation and/or other materials provided with the 00014 // distribution. 00015 // * Neither the name of Google Inc. nor the names of its 00016 // contributors may be used to endorse or promote products derived from 00017 // this software without specific prior written permission. 00018 // 00019 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00020 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00021 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00022 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00023 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00024 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00025 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00026 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00027 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00028 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00029 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 00031 // Author: kenton@google.com (Kenton Varda) 00032 // Based on original Protocol Buffers design by 00033 // Sanjay Ghemawat, Jeff Dean, and others. 00034 // 00035 // This file exists solely to document the google::protobuf namespace. 00036 // It is not compiled into anything, but it may be read by an automated 00037 // documentation generator. 00038 00039 namespace google { 00040 00041 // Core components of the Protocol Buffers runtime library. 00042 // 00043 // The files in this package represent the core of the Protocol Buffer 00044 // system. All of them are part of the libprotobuf library. 00045 // 00046 // A note on thread-safety: 00047 // 00048 // Thread-safety in the Protocol Buffer library follows a simple rule: 00049 // unless explicitly noted otherwise, it is always safe to use an object 00050 // from multiple threads simultaneously as long as the object is declared 00051 // const in all threads (or, it is only used in ways that would be allowed 00052 // if it were declared const). However, if an object is accessed in one 00053 // thread in a way that would not be allowed if it were const, then it is 00054 // not safe to access that object in any other thread simultaneously. 00055 // 00056 // Put simply, read-only access to an object can happen in multiple threads 00057 // simultaneously, but write access can only happen in a single thread at 00058 // a time. 00059 // 00060 // The implementation does contain some "const" methods which actually modify 00061 // the object behind the scenes -- e.g., to cache results -- but in these cases 00062 // mutex locking is used to make the access thread-safe. 00063 namespace protobuf {} 00064 } // namespace google