| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| // |
| // This file exists solely to document the google::protobuf namespace. |
| // It is not compiled into anything, but it may be read by an automated |
| // documentation generator. |
| |
| namespace google { |
| |
| // Core components of the Protocol Buffers runtime library. |
| // |
| // The files in this package represent the core of the Protocol Buffer |
| // system. All of them are part of the libprotobuf library. |
| // |
| // A note on thread-safety: |
| // |
| // Thread-safety in the Protocol Buffer library follows a simple rule: |
| // unless explicitly noted otherwise, it is always safe to use an object |
| // from multiple threads simultaneously as long as the object is declared |
| // const in all threads (or, it is only used in ways that would be allowed |
| // if it were declared const). However, if an object is accessed in one |
| // thread in a way that would not be allowed if it were const, then it is |
| // not safe to access that object in any other thread simultaneously. |
| // |
| // Put simply, read-only access to an object can happen in multiple threads |
| // simultaneously, but write access can only happen in a single thread at |
| // a time. |
| // |
| // The implementation does contain some "const" methods which actually modify |
| // the object behind the scenes -- e.g., to cache results -- but in these cases |
| // mutex locking is used to make the access thread-safe. |
| namespace protobuf {} |
| } // namespace google |
