Fix some bugs when testing opensds ansible
[stor4nfv.git] / src / ceph / src / erasure-code / jerasure / ErasureCodePluginJerasure.cc
1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
2 // vim: ts=8 sw=2 smarttab
3 /*
4  * Ceph distributed storage system
5  *
6  * Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
7  * Copyright (C) 2014 Red Hat <contact@redhat.com>
8  *
9  * Author: Loic Dachary <loic@dachary.org>
10  *
11  *  This library is free software; you can redistribute it and/or
12  *  modify it under the terms of the GNU Lesser General Public
13  *  License as published by the Free Software Foundation; either
14  *  version 2.1 of the License, or (at your option) any later version.
15  * 
16  */
17
18 #include "ceph_ver.h"
19 #include "common/debug.h"
20 #include "ErasureCodeJerasure.h"
21 #include "ErasureCodePluginJerasure.h"
22 #include "jerasure_init.h"
23
24 #define dout_context g_ceph_context
25 #define dout_subsys ceph_subsys_osd
26 #undef dout_prefix
27 #define dout_prefix _prefix(_dout)
28
29 static ostream& _prefix(std::ostream* _dout)
30 {
31   return *_dout << "ErasureCodePluginJerasure: ";
32 }
33
34 int ErasureCodePluginJerasure::factory(const std::string& directory,
35                       ErasureCodeProfile &profile,
36                       ErasureCodeInterfaceRef *erasure_code,
37                       std::ostream *ss) {
38     ErasureCodeJerasure *interface;
39     std::string t;
40     if (profile.find("technique") != profile.end())
41       t = profile.find("technique")->second;
42     if (t == "reed_sol_van") {
43       interface = new ErasureCodeJerasureReedSolomonVandermonde();
44     } else if (t == "reed_sol_r6_op") {
45       interface = new ErasureCodeJerasureReedSolomonRAID6();
46     } else if (t == "cauchy_orig") {
47       interface = new ErasureCodeJerasureCauchyOrig();
48     } else if (t == "cauchy_good") {
49       interface = new ErasureCodeJerasureCauchyGood();
50     } else if (t == "liberation") {
51       interface = new ErasureCodeJerasureLiberation();
52     } else if (t == "blaum_roth") {
53       interface = new ErasureCodeJerasureBlaumRoth();
54     } else if (t == "liber8tion") {
55       interface = new ErasureCodeJerasureLiber8tion();
56     } else {
57       derr << "technique=" << t << " is not a valid coding technique. "
58            << " Choose one of the following: "
59            << "reed_sol_van, reed_sol_r6_op, cauchy_orig, "
60            << "cauchy_good, liberation, blaum_roth, liber8tion"
61            << dendl;
62       return -ENOENT;
63     }
64     dout(20) << __func__ << ": " << profile << dendl;
65     int r = interface->init(profile, ss);
66     if (r) {
67       delete interface;
68       return r;
69     }
70     *erasure_code = ErasureCodeInterfaceRef(interface);
71     return 0;
72 }
73
74 #ifndef BUILDING_FOR_EMBEDDED
75
76 const char *__erasure_code_version() { return CEPH_GIT_NICE_VER; }
77
78 int __erasure_code_init(char *plugin_name, char *directory)
79 {
80   ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
81   int w[] = { 4, 8, 16, 32 };
82   int r = jerasure_init(4, w);
83   if (r) {
84     return -r;
85   }
86   return instance.add(plugin_name, new ErasureCodePluginJerasure());
87 }
88
89 #endif