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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph distributed storage system
+ *
+ * Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
+ * Copyright (C) 2014 Red Hat <contact@redhat.com>
+ *
+ * Author: Loic Dachary <loic@dachary.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef CEPH_ERASURE_CODE_PLUGIN_H
+#define CEPH_ERASURE_CODE_PLUGIN_H
+
+#include "common/Mutex.h"
+#include "ErasureCodeInterface.h"
+
+extern "C" {
+ const char *__erasure_code_version();
+ int __erasure_code_init(char *plugin_name, char *directory);
+}
+
+namespace ceph {
+
+ class ErasureCodePlugin {
+ public:
+ void *library;
+
+ ErasureCodePlugin() :
+ library(0) {}
+ virtual ~ErasureCodePlugin() {}
+
+ virtual int factory(const std::string &directory,
+ ErasureCodeProfile &profile,
+ ErasureCodeInterfaceRef *erasure_code,
+ std::ostream *ss) = 0;
+ };
+
+ class ErasureCodePluginRegistry {
+ public:
+ Mutex lock;
+ bool loading;
+ bool disable_dlclose;
+ std::map<std::string,ErasureCodePlugin*> plugins;
+
+ static ErasureCodePluginRegistry singleton;
+
+ ErasureCodePluginRegistry();
+ ~ErasureCodePluginRegistry();
+
+ static ErasureCodePluginRegistry &instance() {
+ return singleton;
+ }
+
+ int factory(const std::string &plugin,
+ const std::string &directory,
+ ErasureCodeProfile &profile,
+ ErasureCodeInterfaceRef *erasure_code,
+ std::ostream *ss);
+
+ int add(const std::string &name, ErasureCodePlugin *plugin);
+ int remove(const std::string &name);
+ ErasureCodePlugin *get(const std::string &name);
+
+ int load(const std::string &plugin_name,
+ const std::string &directory,
+ ErasureCodePlugin **plugin,
+ std::ostream *ss);
+
+ int preload(const std::string &plugins,
+ const std::string &directory,
+ std::ostream *ss);
+ };
+}
+
+#endif