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Diffstat (limited to 'src/libs/module/Module.cpp')
-rw-r--r-- | src/libs/module/Module.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/libs/module/Module.cpp b/src/libs/module/Module.cpp new file mode 100644 index 00000000..d92ee97a --- /dev/null +++ b/src/libs/module/Module.cpp @@ -0,0 +1,80 @@ +/* This file is part of Ingen. + * Copyright (C) 2007 Dave Robillard <http://drobilla.net> + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <string> +#include <sstream> +#include <iostream> +#include <glibmm/module.h> +#include <glibmm/miscutils.h> +#include <raul/SharedPtr.h> + +#ifndef INGEN_MODULE_DIR +#error This file expects INGEN_MODULE_DIR to be defined. +#endif + +using namespace std; + +namespace Ingen { +namespace Shared { + + +/** Load a dynamic module from the default path. + * + * This will check in the directories specified in the environment variable + * INGEN_MODULE_PATH (typical colon delimited format), then the default module + * installation directory (ie /usr/local/lib/ingen), in that order. + * + * \param name The base name of the module, e.g. "ingen_serialisation" + */ +SharedPtr<Glib::Module> +load_module(const string& name) +{ + SharedPtr<Glib::Module> module; + + // Search INGEN_MODULE_PATH first + bool module_path_found; + string module_path = Glib::getenv("INGEN_MODULE_PATH", module_path_found); + if (module_path_found) { + string dir; + istringstream iss(module_path); + while (getline(iss, dir, ':')) { + module = SharedPtr<Glib::Module>(new Glib::Module( + Glib::Module::build_path(dir, name), + Glib::MODULE_BIND_LAZY)); + + if (module && *module.get()) + return module; + } + } + + // Try default directory if not found + module = SharedPtr<Glib::Module>(new Glib::Module( + Glib::Module::build_path(INGEN_MODULE_DIR, name), + Glib::MODULE_BIND_LAZY)); + + if (*module.get()) { + return module; + } else { + cerr << "Unable to load module \"" << name << "\" (you may want to set INGEN_MODULE_PATH)." << endl; + return SharedPtr<Glib::Module>(); + } +} + + +} // namespace Shared +} // namespace Ingen + |