1 /* 2 * Copyright 2012 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 // This file is a supermacro 12 // (see http://wanderinghorse.net/computing/papers/supermacros_cpp.html) to 13 // expand a definition of a late-binding symbol table class. 14 // 15 // Arguments: 16 // LATE_BINDING_SYMBOL_TABLE_CLASS_NAME: Name of the class to generate. 17 // LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST: List of symbols to load from the DLL, 18 // as an X-Macro list (see http://www.drdobbs.com/blogs/cpp/228700289). 19 // LATE_BINDING_SYMBOL_TABLE_DLL_NAME: String literal for the DLL file name to 20 // load. 21 // 22 // From a .cc file, include the header file containing your call to the .h.def 23 // supermacro, and then call this supermacro (optionally from inside the 24 // namespace for the class to generate, if any). Example: 25 // 26 // #include "myclassname.h" 27 // 28 // namespace foo { 29 // 30 // #define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME MY_CLASS_NAME 31 // #define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST MY_SYMBOLS_LIST 32 // #define LATE_BINDING_SYMBOL_TABLE_DLL_NAME "libdll.so.n" 33 // #include "webrtc/base/latebindingsymboltable.cc.def" 34 // 35 // } 36 37 #ifndef LATE_BINDING_SYMBOL_TABLE_CLASS_NAME 38 #error You must define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME 39 #endif 40 41 #ifndef LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST 42 #error You must define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST 43 #endif 44 45 #ifndef LATE_BINDING_SYMBOL_TABLE_DLL_NAME 46 #error You must define LATE_BINDING_SYMBOL_TABLE_DLL_NAME 47 #endif 48 49 #define X(sym) #sym, 50 const char* const LATE_BINDING_SYMBOL_TABLE_CLASS_NAME::kSymbolNames[] = { 51 LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST 52 }; 53 #undef X 54 55 const ::rtc::LateBindingSymbolTable::TableInfo 56 LATE_BINDING_SYMBOL_TABLE_CLASS_NAME::kTableInfo = { 57 LATE_BINDING_SYMBOL_TABLE_DLL_NAME, 58 SYMBOL_TABLE_SIZE, 59 LATE_BINDING_SYMBOL_TABLE_CLASS_NAME::kSymbolNames 60 }; 61 62 LATE_BINDING_SYMBOL_TABLE_CLASS_NAME::LATE_BINDING_SYMBOL_TABLE_CLASS_NAME() 63 : ::rtc::LateBindingSymbolTable(&kTableInfo, table_) {} 64 65 LATE_BINDING_SYMBOL_TABLE_CLASS_NAME::~LATE_BINDING_SYMBOL_TABLE_CLASS_NAME() {} 66 67 #undef LATE_BINDING_SYMBOL_TABLE_CLASS_NAME 68 #undef LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST 69 #undef LATE_BINDING_SYMBOL_TABLE_DLL_NAME 70
