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+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2014 CERN (Switzerland)
+ *
+ * Author: Andreas-Joachim Peters <Andreas.Joachim.Peters@cern.ch>
+ *
+ * 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.
+ *
+ */
+
+
+/**
+ * @file ErasureCodePluginIsa.cc
+ *
+ * @brief Erasure Code Plug-in class wrapping the INTEL ISA-L library
+ *
+ * The factory plug-in class allows to call individual encoding techniques.
+ * The INTEL ISA-L library provides two pre-defined encoding matrices
+ * (cauchy, reed_sol_van = default).
+ */
+
+// -----------------------------------------------------------------------------
+#include "ceph_ver.h"
+#include "include/buffer.h"
+#include "ErasureCodePluginIsa.h"
+#include "ErasureCodeIsa.h"
+// -----------------------------------------------------------------------------
+
+int ErasureCodePluginIsa::factory(const std::string &directory,
+ ErasureCodeProfile &profile,
+ ErasureCodeInterfaceRef *erasure_code,
+ std::ostream *ss)
+{
+ ErasureCodeIsa *interface;
+ std::string t;
+ if (profile.find("technique") == profile.end())
+ profile["technique"] = "reed_sol_van";
+ t = profile.find("technique")->second;
+ if ((t == "reed_sol_van")) {
+ interface = new ErasureCodeIsaDefault(tcache,
+ ErasureCodeIsaDefault::kVandermonde);
+ } else {
+ if ((t == "cauchy")) {
+ interface = new ErasureCodeIsaDefault(tcache,
+ ErasureCodeIsaDefault::kCauchy);
+ } else {
+ *ss << "technique=" << t << " is not a valid coding technique. "
+ << " Choose one of the following: "
+ << "reed_sol_van,"
+ << "cauchy" << std::endl;
+ return -ENOENT;
+ }
+ }
+
+ 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();
+
+ return instance.add(plugin_name, new ErasureCodePluginIsa());
+}