00001 /* -*- C++ -*- */ 00002 00003 /* 00004 * The Apache Software License, Version 1.1 00005 * 00006 * 00007 * Copyright (c) 2002 The Apache Software Foundation. All rights 00008 * reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without 00011 * modification, are permitted provided that the following conditions 00012 * are met: 00013 * 00014 * 1. Redistributions of source code must retain the above copyright 00015 * notice, this list of conditions and the following disclaimer. 00016 * 00017 * 2. Redistributions in binary form must reproduce the above copyright 00018 * notice, this list of conditions and the following disclaimer in 00019 * the documentation and/or other materials provided with the 00020 * distribution. 00021 * 00022 * 3. The end-user documentation included with the redistribution, 00023 * if any, must include the following acknowledgment: 00024 * "This product includes software developed by the 00025 * Apache Software Foundation (http://www.apache.org/)." 00026 * Alternately, this acknowledgment may appear in the software itself, 00027 * if and wherever such third-party acknowledgments normally appear. 00028 * 00029 * 4. The names "SOAP" and "Apache Software Foundation" must 00030 * not be used to endorse or promote products derived from this 00031 * software without prior written permission. For written 00032 * permission, please contact apache@apache.org. 00033 * 00034 * 5. Products derived from this software may not be called "Apache", 00035 * nor may "Apache" appear in their name, without prior written 00036 * permission of the Apache Software Foundation. 00037 * 00038 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00039 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00040 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00041 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00042 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00043 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00044 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00045 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00046 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00047 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00048 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00049 * SUCH DAMAGE. 00050 * ==================================================================== 00051 * 00052 * This software consists of voluntary contributions made by many 00053 * individuals on behalf of the Apache Software Foundation. For more 00054 * information on the Apache Software Foundation, please see 00055 * <http://www.apache.org/>. 00056 * 00057 * 00058 */ 00059 00060 #if !defined(__HANDLERLOADER_H_INCLUDED__) 00061 #define __HANDLERLOADER_H_INCLUDED__ 00062 00063 #include "../common/MessageData.h" 00064 #include "../common/GDefine.h" 00065 #include "../common/WrapperClassHandler.h" 00066 #include "SharedObject.h" 00067 00068 #include <map> 00069 #include <string> 00070 00071 using namespace std; 00072 00073 #define CREATE_FUNCTION "GetClassInstance" 00074 #define DELETE_FUNCTION "DestroyInstance" 00075 00076 typedef int (* CREATE_OBJECT)(BasicHandler **inst); 00077 typedef int (* DELETE_OBJECT)(BasicHandler *inst); 00078 00079 #ifdef WIN32 00080 #include <windows.h> 00081 #define DLHandler HINSTANCE 00082 #define RTLD_LAZY 0 00083 #else //Linux 00084 #include <dlfcn.h> 00085 #define DLHandler void* 00086 #endif 00087 00088 //status codes 00089 #define HANDLER_INIT_FAIL 1 00090 #define CREATION_FAILED 2 00091 #define LOADLIBRARY_FAILED 3 00092 #define LIBRARY_PATH_EMPTY 4 00093 #define HANDLER_NOT_LOADED 5 00094 #define HANDLER_BEING_USED 6 00095 #define GET_HANDLER_FAILED 7 00096 #define WRONG_HANDLER_TYPE 8 00097 #define NO_HANDLERS_CONFIGURED 9 00098 00099 00108 class HandlerLoader : protected SharedObject 00109 { 00110 private: 00111 class HandlerInformation 00112 { 00113 public: 00114 string m_sLib; 00115 int m_nLoadOptions; 00116 DLHandler m_Handler; 00117 CREATE_OBJECT m_Create; 00118 DELETE_OBJECT m_Delete; 00119 int m_nObjCount; 00120 public: 00121 HandlerInformation() 00122 { 00123 m_sLib = ""; 00124 m_nObjCount = 0; 00125 } 00126 }; 00127 00128 map<int, HandlerInformation*> m_HandlerInfoList; 00129 00130 public: 00131 int CreateHandler(BasicHandler** pHandler, int nLibId); 00132 int DeleteHandler(BasicHandler* pHandler, int nLibId); 00133 HandlerLoader(); 00134 ~HandlerLoader(); 00135 private: 00136 int LoadLib(HandlerInformation* pHandlerInfo); 00137 int UnloadLib(HandlerInformation* pHandlerInfo); 00138 }; 00139 00140 00141 #endif //__HANDLERLOADER_H_INCLUDED__