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authorDavid Robillard <d@drobilla.net>2008-09-30 16:50:21 +0000
committerDavid Robillard <d@drobilla.net>2008-09-30 16:50:21 +0000
commit93850c202de8b073a1ce1dd8bd246d407bce4e2f (patch)
tree6910b135bf4eff12de1af116cef73f6e9c107cd0 /src/module/Module.cpp
parenta8bf5272d096de73507d2eab47f282c345f4ca8a (diff)
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Flatten ingen source directory heirarchy a bit.
git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@1551 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/module/Module.cpp')
-rw-r--r--src/module/Module.cpp90
1 files changed, 90 insertions, 0 deletions
diff --git a/src/module/Module.cpp b/src/module/Module.cpp
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+/* 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 <glibmm/fileutils.h>
+#include <raul/SharedPtr.hpp>
+
+#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)
+{
+ Glib::Module* module = NULL;
+
+ // 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, ':')) {
+
+ string filename = Glib::Module::build_path(dir, name);
+ if (Glib::file_test(filename, Glib::FILE_TEST_EXISTS)) {
+ module = new Glib::Module(filename, Glib::MODULE_BIND_LAZY);
+
+ if (*module) {
+ cerr << "Loaded module \"" << name << "\" from " << filename << endl;
+ return SharedPtr<Glib::Module>(module);
+ } else {
+ delete module;
+ cerr << Glib::Module::get_last_error() << endl;
+ }
+ }
+ }
+ }
+
+ // Try default directory if not found
+ module = new Glib::Module(
+ Glib::Module::build_path(INGEN_MODULE_DIR, name),
+ Glib::MODULE_BIND_LAZY);
+
+ if (*module) {
+ cerr << "Loaded module \"" << name << "\" from " << INGEN_MODULE_DIR << endl;
+ return SharedPtr<Glib::Module>(module);
+ } else {
+ cerr << "Unable to load module \"" << name << "\", is Ingen installed?" << endl
+ << "Use ./ingen.dev to run from the source tree." << endl;
+ return SharedPtr<Glib::Module>();
+ }
+}
+
+
+} // namespace Shared
+} // namespace Ingen
+