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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/ceph_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:
ceph::mutex lock = ceph::make_mutex("ErasureCodePluginRegistry::lock");
bool loading = false;
bool disable_dlclose = false;
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
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