Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 201 insertions, 0 deletions

diff --git a/src/test/erasure-code/ceph_erasure_code.cc b/src/test/erasure-code/ceph_erasure_code.cc
new file mode 100644
index 00000000..19eef327
--- /dev/null
+++ b/src/test/erasure-code/ceph_erasure_code.cc
@@ -0,0 +1,201 @@
+// -*- 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) 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.
+ *
+ */
+
+#include <boost/scoped_ptr.hpp>
+#include <boost/lexical_cast.hpp>
+#include <boost/program_options/option.hpp>
+#include <boost/program_options/options_description.hpp>
+#include <boost/program_options/variables_map.hpp>
+#include <boost/program_options/cmdline.hpp>
+#include <boost/program_options/parsers.hpp>
+#include <boost/algorithm/string.hpp>
+
+#include "global/global_context.h"
+#include "global/global_init.h"
+#include "common/ceph_argparse.h"
+#include "common/ceph_context.h"
+#include "common/config.h"
+#include "common/Clock.h"
+#include "include/utime.h"
+#include "erasure-code/ErasureCodePlugin.h"
+
+namespace po = boost::program_options;
+
+class ErasureCodeCommand {
+  po::variables_map vm;
+  ErasureCodeProfile profile;
+  boost::intrusive_ptr<CephContext> cct;
+public:
+  int setup(int argc, char** argv);
+  int run();
+  int plugin_exists();
+  int display_information();
+};
+
+int ErasureCodeCommand::setup(int argc, char** argv) {
+
+  po::options_description desc("Allowed options");
+  desc.add_options()
+    ("help,h", "produce help message")
+    ("all", "implies "
+     "--get_chunk_size 1024 "
+     "--get_data_chunk_count "
+     "--get_coding_chunk_count "
+     "--get_chunk_count ")
+    ("get_chunk_size", po::value<unsigned int>(),
+     "display get_chunk_size(<object size>)")
+    ("get_data_chunk_count", "display get_data_chunk_count()")
+    ("get_coding_chunk_count", "display get_coding_chunk_count()")
+    ("get_chunk_count", "display get_chunk_count()")
+    ("parameter,P", po::value<vector<string> >(),
+     "parameters")
+    ("plugin_exists", po::value<string>(),
+     "succeeds if the plugin given in argument exists and can be loaded")
+    ;
+
+  po::parsed_options parsed =
+    po::command_line_parser(argc, argv).options(desc).allow_unregistered().run();
+  po::store(
+    parsed,
+    vm);
+  po::notify(vm);
+
+  vector<const char *> ceph_options;
+  vector<string> ceph_option_strings = po::collect_unrecognized(
+    parsed.options, po::include_positional);
+  ceph_options.reserve(ceph_option_strings.size());
+  for (vector<string>::iterator i = ceph_option_strings.begin();
+       i != ceph_option_strings.end();
+       ++i) {
+    ceph_options.push_back(i->c_str());
+  }
+
+  cct = global_init(
+    NULL, ceph_options, CEPH_ENTITY_TYPE_CLIENT,
+    CODE_ENVIRONMENT_UTILITY,
+    CINIT_FLAG_NO_MON_CONFIG);
+  common_init_finish(g_ceph_context);
+  g_ceph_context->_conf.apply_changes(nullptr);
+
+  if (vm.count("help")) {
+    cout << desc << std::endl;
+    return 1;
+  }
+
+  if (vm.count("parameter")) {
+    const vector<string> &p = vm["parameter"].as< vector<string> >();
+    for (vector<string>::const_iterator i = p.begin();
+	 i != p.end();
+	 ++i) {
+      std::vector<std::string> strs;
+      boost::split(strs, *i, boost::is_any_of("="));
+      if (strs.size() != 2) {
+	cerr << "--parameter " << *i
+	     << " ignored because it does not contain exactly one =" << endl;
+      } else {
+	profile[strs[0]] = strs[1];
+      }
+    }
+  }
+
+  return 0;
+}
+
+int ErasureCodeCommand::run() {
+  if (vm.count("plugin_exists"))
+    return plugin_exists();
+  else
+    return display_information();
+}
+
+int ErasureCodeCommand::plugin_exists() {
+  ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
+  ErasureCodePlugin *plugin = 0;
+  Mutex::Locker l(instance.lock);
+  stringstream ss;
+  int code = instance.load(vm["plugin_exists"].as<string>(),
+			   g_conf().get_val<std::string>("erasure_code_dir"), &plugin, &ss);
+  if (code)
+    cerr << ss.str() << endl;
+  return code;
+}
+
+int ErasureCodeCommand::display_information() {
+  ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
+  ErasureCodeInterfaceRef erasure_code;
+
+  if (profile.count("plugin") == 0) {
+    cerr << "--parameter plugin=<plugin> is mandatory" << endl;
+    return 1;
+  }
+
+  int code = instance.factory(profile["plugin"],
+			      g_conf().get_val<std::string>("erasure_code_dir"),
+			      profile,
+			      &erasure_code, &cerr);
+  if (code)
+    return code;
+
+  if (vm.count("all") || vm.count("get_chunk_size")) {
+    unsigned int object_size = 1024;
+    if (vm.count("get_chunk_size"))
+      object_size = vm["get_chunk_size"].as<unsigned int>();
+    cout << "get_chunk_size(" << object_size << ")\t"
+	 << erasure_code->get_chunk_size(object_size) << endl;
+  }
+  if (vm.count("all") || vm.count("get_data_chunk_count"))
+    cout << "get_data_chunk_count\t"
+      	 << erasure_code->get_data_chunk_count() << endl;
+  if (vm.count("all") || vm.count("get_coding_chunk_count"))
+    cout << "get_coding_chunk_count\t"
+      	 << erasure_code->get_coding_chunk_count() << endl;
+  if (vm.count("all") || vm.count("get_chunk_count"))
+    cout << "get_chunk_count\t"
+      	 << erasure_code->get_chunk_count() << endl;
+  return 0;
+}
+
+int main(int argc, char** argv) {
+  ErasureCodeCommand eccommand;
+  try {
+    int err = eccommand.setup(argc, argv);
+    if (err)
+      return err;
+    return eccommand.run();
+  } catch(po::error &e) {
+    cerr << e.what() << endl; 
+    return 1;
+  }
+}
+
+/*
+ * Local Variables:
+ * compile-command: "cd ../.. ; make -j4 &&
+ *   make -j4 ceph_erasure_code &&
+ *   libtool --mode=execute valgrind --tool=memcheck --leak-check=full \
+ *      ./ceph_erasure_code \
+ *      --parameter plugin=jerasure \
+ *      --parameter technique=reed_sol_van \
+ *      --parameter k=2 \
+ *      --parameter m=2 \
+ *      --get_chunk_size 1024 \
+ *      --get_data_chunk_count \
+ *      --get_coding_chunk_count \
+ *      --get_chunk_count \
+ * "
+ * End:
+ */