2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "debugging/debugging.h"
31 #include "modulesystem.h"
33 class RadiantModuleServer : public ModuleServer
35 typedef std::pair<std::string, int> ModuleType;
36 typedef std::pair<ModuleType, std::string> ModuleKey;
37 typedef std::map<ModuleKey, Module*> Modules_;
42 RadiantModuleServer() : m_error( false ){
45 void setError( bool error ){
48 bool getError() const {
52 TextOutputStream& getOutputStream(){
53 return globalOutputStream();
55 TextOutputStream& getErrorStream(){
56 return globalErrorStream();
58 DebugMessageHandler& getDebugMessageHandler(){
59 return globalDebugMessageHandler();
62 void registerModule( const char* type, int version, const char* name, Module& module ){
63 ASSERT_NOTNULL( &module );
64 if ( !m_modules.insert( Modules_::value_type( ModuleKey( ModuleType( type, version ), name ), &module ) ).second ) {
65 globalErrorStream() << "module already registered: type=" << makeQuoted( type ) << " name=" << makeQuoted( name ) << "\n";
69 globalOutputStream() << "Module Registered: type=" << makeQuoted( type ) << " version=" << makeQuoted( version ) << " name=" << makeQuoted( name ) << "\n";
73 Module* findModule( const char* type, int version, const char* name ) const {
74 Modules_::const_iterator i = m_modules.find( ModuleKey( ModuleType( type, version ), name ) );
75 if ( i != m_modules.end() ) {
81 void foreachModule( const char* type, int version, const Visitor& visitor ){
82 for ( Modules_::const_iterator i = m_modules.begin(); i != m_modules.end(); ++i )
84 if ( string_equal( ( *i ).first.first.first.c_str(), type ) ) {
85 visitor.visit( ( *i ).first.second.c_str(), *( *i ).second );
96 #define FORMAT_BUFSIZE 2048
97 const char* FormatGetLastError(){
98 static char buf[FORMAT_BUFSIZE];
100 FORMAT_MESSAGE_FROM_SYSTEM |
101 FORMAT_MESSAGE_IGNORE_INSERTS,
104 MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language
116 typedef int ( __stdcall * FunctionPointer )();
118 DynamicLibrary( const char* filename ){
119 m_library = LoadLibrary( filename );
120 if ( m_library == 0 ) {
121 globalErrorStream() << "LoadLibrary failed: '" << filename << "'\n";
122 globalErrorStream() << "GetLastError: " << FormatGetLastError();
127 FreeLibrary( m_library );
131 return m_library == 0;
133 FunctionPointer findSymbol( const char* symbol ){
134 FunctionPointer address = (FunctionPointer) GetProcAddress( m_library, symbol );
135 if ( address == 0 ) {
136 globalErrorStream() << "GetProcAddress failed: '" << symbol << "'\n";
137 globalErrorStream() << "GetLastError: " << FormatGetLastError();
143 #elif defined( POSIX )
151 typedef int ( *FunctionPointer )();
153 DynamicLibrary( const char* filename ){
154 m_library = dlopen( filename, RTLD_NOW|RTLD_LOCAL|RTLD_DEEPBIND );
157 globalErrorStream() << "LoadLibrary failed: '" << filename << "'\n";
158 if ( const char* error = dlerror() )
159 globalErrorStream() << "GetLastError: " << error;
164 dlclose( m_library );
168 return m_library == 0;
170 FunctionPointer findSymbol( const char* symbol ){
171 FunctionPointer p = (FunctionPointer)dlsym( m_library, symbol );
173 const char* error = reinterpret_cast<const char*>( dlerror() );
175 globalErrorStream() << error;
183 #error "unsupported platform"
186 class DynamicLibraryModule
188 typedef void ( RADIANT_DLLIMPORT * RegisterModulesFunc )( ModuleServer& server );
189 DynamicLibrary m_library;
190 RegisterModulesFunc m_registerModule;
192 DynamicLibraryModule( const char* filename )
193 : m_library( filename ), m_registerModule( 0 ){
194 if ( !m_library.failed() ) {
195 m_registerModule = reinterpret_cast<RegisterModulesFunc>( m_library.findSymbol( "Radiant_RegisterModules" ) );
197 if ( !m_registerModule ) {
198 m_registerModule = reinterpret_cast<RegisterModulesFunc>( m_library.findSymbol( "Radiant_RegisterModules@4" ) );
204 return m_registerModule == 0;
206 void registerModules( ModuleServer& server ){
207 m_registerModule( server );
214 typedef std::vector<DynamicLibraryModule*> libraries_t;
215 libraries_t m_libraries;
221 void registerLibrary( const char* filename, ModuleServer& server ){
222 DynamicLibraryModule* library = new DynamicLibraryModule( filename );
224 if ( library->failed() ) {
229 m_libraries.push_back( library );
230 library->registerModules( server );
234 for ( libraries_t::iterator i = m_libraries.begin(); i != m_libraries.end(); ++i )
245 Libraries g_libraries;
246 RadiantModuleServer g_server;
248 ModuleServer& GlobalModuleServer_get(){
252 void GlobalModuleServer_loadModule( const char* filename ){
253 g_libraries.registerLibrary( filename, g_server );
256 void GlobalModuleServer_Initialise(){
259 void GlobalModuleServer_Shutdown(){