ceph/src/erasure-code/ErasureCodePlugin.h
Sage Weil 660ae5bcbb osd: always load erasure plugins from the configured directory
Ignore the profile 'directory' field.

This ensures that we can always find plugins even when teh cluster
is installed across a mix of distros.

Rename the option to have no osd_ (or mon_) prefix since anybody
may use the ec factory/plugin code.

We still hard-code .libs in the unit tests... sigh.

Signed-off-by: Sage Weil <sage@redhat.com>
2015-08-21 16:03:30 -04:00

83 lines
2.0 KiB
C++

// -*- 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,
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,
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,
ostream *ss);
int preload(const std::string &plugins,
const std::string &directory,
ostream *ss);
};
}
#endif