From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- .../jerasure/ErasureCodePluginJerasure.cc | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 src/erasure-code/jerasure/ErasureCodePluginJerasure.cc (limited to 'src/erasure-code/jerasure/ErasureCodePluginJerasure.cc') diff --git a/src/erasure-code/jerasure/ErasureCodePluginJerasure.cc b/src/erasure-code/jerasure/ErasureCodePluginJerasure.cc new file mode 100644 index 00000000..353b71b8 --- /dev/null +++ b/src/erasure-code/jerasure/ErasureCodePluginJerasure.cc @@ -0,0 +1,84 @@ +// -*- 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 + * Copyright (C) 2014 Red Hat + * + * Author: Loic Dachary + * + * 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. + * + */ + +#include "ceph_ver.h" +#include "common/debug.h" +#include "ErasureCodeJerasure.h" +#include "ErasureCodePluginJerasure.h" +#include "jerasure_init.h" + +#define dout_context g_ceph_context +#define dout_subsys ceph_subsys_osd +#undef dout_prefix +#define dout_prefix _prefix(_dout) + +static ostream& _prefix(std::ostream* _dout) +{ + return *_dout << "ErasureCodePluginJerasure: "; +} + +int ErasureCodePluginJerasure::factory(const std::string& directory, + ErasureCodeProfile &profile, + ErasureCodeInterfaceRef *erasure_code, + std::ostream *ss) { + ErasureCodeJerasure *interface; + std::string t; + if (profile.find("technique") != profile.end()) + t = profile.find("technique")->second; + if (t == "reed_sol_van") { + interface = new ErasureCodeJerasureReedSolomonVandermonde(); + } else if (t == "reed_sol_r6_op") { + interface = new ErasureCodeJerasureReedSolomonRAID6(); + } else if (t == "cauchy_orig") { + interface = new ErasureCodeJerasureCauchyOrig(); + } else if (t == "cauchy_good") { + interface = new ErasureCodeJerasureCauchyGood(); + } else if (t == "liberation") { + interface = new ErasureCodeJerasureLiberation(); + } else if (t == "blaum_roth") { + interface = new ErasureCodeJerasureBlaumRoth(); + } else if (t == "liber8tion") { + interface = new ErasureCodeJerasureLiber8tion(); + } else { + *ss << "technique=" << t << " is not a valid coding technique. " + << " Choose one of the following: " + << "reed_sol_van, reed_sol_r6_op, cauchy_orig, " + << "cauchy_good, liberation, blaum_roth, liber8tion"; + return -ENOENT; + } + dout(20) << __func__ << ": " << profile << dendl; + int r = interface->init(profile, ss); + if (r) { + delete interface; + return r; + } + *erasure_code = ErasureCodeInterfaceRef(interface); + return 0; +} + +const char *__erasure_code_version() { return CEPH_GIT_NICE_VER; } + +int __erasure_code_init(char *plugin_name, char *directory) +{ + ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance(); + int w[] = { 4, 8, 16, 32 }; + int r = jerasure_init(4, w); + if (r) { + return -r; + } + return instance.add(plugin_name, new ErasureCodePluginJerasure()); +} -- cgit v1.2.3