X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fkv%2FKineticStore.cc;fp=src%2Fceph%2Fsrc%2Fkv%2FKineticStore.cc;h=ddbd48720f8ae25f944ec61f7532e5d5ec090ee9;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git

diff --git a/src/ceph/src/kv/KineticStore.cc b/src/ceph/src/kv/KineticStore.cc
new file mode 100644
index 0000000..ddbd487
--- /dev/null
+++ b/src/ceph/src/kv/KineticStore.cc
@@ -0,0 +1,362 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#include "KineticStore.h"
+#include "common/ceph_crypto.h"
+
+#include <set>
+#include <map>
+#include <string>
+#include "include/memory.h"
+#include <errno.h>
+using std::string;
+#include "common/perf_counters.h"
+
+#define dout_subsys ceph_subsys_kinetic
+
+int KineticStore::init()
+{
+  // init defaults.  caller can override these if they want
+  // prior to calling open.
+  host = cct->_conf->kinetic_host;
+  port = cct->_conf->kinetic_port;
+  user_id = cct->_conf->kinetic_user_id;
+  hmac_key = cct->_conf->kinetic_hmac_key;
+  use_ssl = cct->_conf->kinetic_use_ssl;
+  return 0;
+}
+
+int KineticStore::_test_init(CephContext *c)
+{
+  kinetic::KineticConnectionFactory conn_factory =
+    kinetic::NewKineticConnectionFactory();
+
+  kinetic::ConnectionOptions options;
+  options.host = cct->_conf->kinetic_host;
+  options.port = cct->_conf->kinetic_port;
+  options.user_id = cct->_conf->kinetic_user_id;
+  options.hmac_key = cct->_conf->kinetic_hmac_key;
+  options.use_ssl = cct->_conf->kinetic_use_ssl;
+
+  kinetic::Status status = conn_factory.NewThreadsafeBlockingConnection(options, kinetic_conn, 10);
+  kinetic_conn.reset();
+  if (!status.ok())
+    derr << __func__ << "Unable to connect to kinetic store " << options.host
+         << ":" << options.port << " : " << status.ToString() << dendl;
+  return status.ok() ? 0 : -EIO;
+}
+
+int KineticStore::do_open(ostream &out, bool create_if_missing)
+{
+  kinetic::KineticConnectionFactory conn_factory =
+    kinetic::NewKineticConnectionFactory();
+  kinetic::ConnectionOptions options;
+  options.host = host;
+  options.port = port;
+  options.user_id = user_id;
+  options.hmac_key = hmac_key;
+  options.use_ssl = use_ssl;
+  kinetic::Status status = conn_factory.NewThreadsafeBlockingConnection(options, kinetic_conn, 10);
+  if (!status.ok()) {
+    derr << "Unable to connect to kinetic store " << host << ":" << port
+	 << " : " << status.ToString() << dendl;
+    return -EINVAL;
+  }
+
+  PerfCountersBuilder plb(g_ceph_context, "kinetic", l_kinetic_first, l_kinetic_last);
+  plb.add_u64_counter(l_kinetic_gets, "kinetic_get", "Gets");
+  plb.add_u64_counter(l_kinetic_txns, "kinetic_transaction", "Transactions");
+  logger = plb.create_perf_counters();
+  cct->get_perfcounters_collection()->add(logger);
+  return 0;
+}
+
+KineticStore::KineticStore(CephContext *c) :
+  cct(c),
+  logger(NULL)
+{
+  host = c->_conf->kinetic_host;
+  port = c->_conf->kinetic_port;
+  user_id = c->_conf->kinetic_user_id;
+  hmac_key = c->_conf->kinetic_hmac_key;
+  use_ssl = c->_conf->kinetic_use_ssl;
+}
+
+KineticStore::~KineticStore()
+{
+  close();
+  delete logger;
+}
+
+void KineticStore::close()
+{
+  kinetic_conn.reset();
+  if (logger)
+    cct->get_perfcounters_collection()->remove(logger);
+}
+
+int KineticStore::submit_transaction(KeyValueDB::Transaction t)
+{
+  KineticTransactionImpl * _t =
+    static_cast<KineticTransactionImpl *>(t.get());
+
+  dout(20) << "kinetic submit_transaction" << dendl;
+
+  for (vector<KineticOp>::iterator it = _t->ops.begin();
+       it != _t->ops.end(); ++it) {
+    kinetic::KineticStatus status(kinetic::StatusCode::OK, "");
+    if (it->type == KINETIC_OP_WRITE) {
+      string data(it->data.c_str(), it->data.length());
+      kinetic::KineticRecord record(data, "", "",
+				    com::seagate::kinetic::client::proto::Message_Algorithm_SHA1);
+      dout(30) << "kinetic before put of " << it->key << " (" << data.length() << " bytes)" << dendl;
+      status = kinetic_conn->Put(it->key, "", kinetic::WriteMode::IGNORE_VERSION,
+				 record);
+      dout(30) << "kinetic after put of " << it->key << dendl;
+    } else {
+      assert(it->type == KINETIC_OP_DELETE);
+      dout(30) << "kinetic before delete" << dendl;
+      status = kinetic_conn->Delete(it->key, "",
+				    kinetic::WriteMode::IGNORE_VERSION);
+      dout(30) << "kinetic after delete" << dendl;
+    }
+    if (!status.ok()) {
+      derr << "kinetic error submitting transaction: "
+	   << status.message() << dendl;
+      return -1;
+    }
+  }
+
+  logger->inc(l_kinetic_txns);
+  return 0;
+}
+
+int KineticStore::submit_transaction_sync(KeyValueDB::Transaction t)
+{
+  return submit_transaction(t);
+}
+
+void KineticStore::KineticTransactionImpl::set(
+  const string &prefix,
+  const string &k,
+  const bufferlist &to_set_bl)
+{
+  string key = combine_strings(prefix, k);
+  dout(30) << "kinetic set key " << key << dendl;
+  ops.push_back(KineticOp(KINETIC_OP_WRITE, key, to_set_bl));
+}
+
+void KineticStore::KineticTransactionImpl::rmkey(const string &prefix,
+					         const string &k)
+{
+  string key = combine_strings(prefix, k);
+  dout(30) << "kinetic rm key " << key << dendl;
+  ops.push_back(KineticOp(KINETIC_OP_DELETE, key));
+}
+
+void KineticStore::KineticTransactionImpl::rmkeys_by_prefix(const string &prefix)
+{
+  dout(20) << "kinetic rmkeys_by_prefix " << prefix << dendl;
+  KeyValueDB::Iterator it = db->get_iterator(prefix);
+  for (it->seek_to_first();
+       it->valid();
+       it->next()) {
+    string key = combine_strings(prefix, it->key());
+    ops.push_back(KineticOp(KINETIC_OP_DELETE, key));
+    dout(30) << "kinetic rm key by prefix: " << key << dendl;
+  }
+}
+
+void KineticStore::KineticTransactionImpl::rm_range_keys(const string &prefix, const string &start, const string &end)
+{
+  KeyValueDB::Iterator it = db->get_iterator(prefix);
+  it->lower_bound(start);
+  while (it->valid()) {
+    if (it->key() >= end) {
+      break;
+    }
+    ops.push_back(
+        KineticOp(KINETIC_OP_DELETE, combine_strings(prefix, it->key())));
+    it->next();
+  }
+}
+
+int KineticStore::get(
+    const string &prefix,
+    const std::set<string> &keys,
+    std::map<string, bufferlist> *out)
+{
+  dout(30) << "kinetic get prefix: " << prefix << " keys: " << keys << dendl;
+  for (std::set<string>::const_iterator i = keys.begin();
+       i != keys.end();
+       ++i) {
+    unique_ptr<kinetic::KineticRecord> record;
+    string key = combine_strings(prefix, *i);
+    dout(30) << "before get key " << key << dendl;
+    kinetic::KineticStatus status = kinetic_conn->Get(key, record);
+    if (!status.ok())
+      break;
+    dout(30) << "kinetic get got key: " << key << dendl;
+    out->insert(make_pair(key, to_bufferlist(*record.get())));
+  }
+  logger->inc(l_kinetic_gets);
+  return 0;
+}
+
+string KineticStore::combine_strings(const string &prefix, const string &value)
+{
+  string out = prefix;
+  out.push_back(1);
+  out.append(value);
+  return out;
+}
+
+bufferlist KineticStore::to_bufferlist(const kinetic::KineticRecord &record)
+{
+  bufferlist bl;
+  bl.append(*(record.value()));
+  return bl;
+}
+
+int KineticStore::split_key(string &in, string *prefix, string *key)
+{
+  size_t prefix_len = 0;
+  char* in_data = in.c_str();
+  
+  // Find separator inside Slice
+  char* separator = (char*) memchr((void*)in_data, 1, in.size());
+  if (separator == NULL)
+     return -EINVAL;
+  prefix_len = size_t(separator - in_data);
+  if (prefix_len >= in.size())
+    return -EINVAL;
+
+  // Fetch prefix and/or key directly from Slice
+  if (prefix)
+    *prefix = string(in_data, prefix_len);
+  if (key)
+    *key = string(separator+1, in.size()-prefix_len-1);
+  return 0;
+}
+
+KineticStore::KineticWholeSpaceIteratorImpl::KineticWholeSpaceIteratorImpl(kinetic::BlockingKineticConnection *conn) : kinetic_conn(conn),
+   kinetic_status(kinetic::StatusCode::OK, "")
+{
+  dout(30) << "kinetic iterator constructor()" << dendl;
+  const static string last_key = "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF";
+  kinetic::KeyRangeIterator it =
+    kinetic_conn->IterateKeyRange("", true, last_key, true, 1024);
+  while (it != kinetic::KeyRangeEnd()) {
+    try {
+      keys.insert(*it);
+      dout(30) << "kinetic iterator added " << *it << dendl;
+    } catch (std::runtime_error &e) {
+      kinetic_status = kinetic::KineticStatus(kinetic::StatusCode::CLIENT_INTERNAL_ERROR, e.what());
+      return;
+    }
+    ++it;
+  }
+  keys_iter = keys.begin();
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::seek_to_first(const string &prefix)
+{
+  dout(30) << "kinetic iterator seek_to_first(prefix): " << prefix << dendl;
+  keys_iter = keys.lower_bound(prefix);
+  return 0;
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::seek_to_last()
+{
+  dout(30) << "kinetic iterator seek_to_last()" << dendl;
+  keys_iter = keys.end();
+  if (keys.begin() != keys_iter)
+    --keys_iter;
+  return 0;
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::seek_to_last(const string &prefix)
+{
+  dout(30) << "kinetic iterator seek_to_last(prefix): " << prefix << dendl;
+  keys_iter = keys.upper_bound(prefix + "\2");
+  if (keys.begin() == keys_iter) {
+    keys_iter = keys.end();
+  } else {
+    --keys_iter;
+  }
+  return 0;
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::upper_bound(const string &prefix, const string &after) {
+  dout(30) << "kinetic iterator upper_bound()" << dendl;
+  string bound = combine_strings(prefix, after);
+  keys_iter = keys.upper_bound(bound);
+  return 0;
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::lower_bound(const string &prefix, const string &to) {
+  dout(30) << "kinetic iterator lower_bound()" << dendl;
+  string bound = combine_strings(prefix, to);
+  keys_iter = keys.lower_bound(bound);
+  return 0;
+}
+
+bool KineticStore::KineticWholeSpaceIteratorImpl::valid() {
+  dout(30) << "kinetic iterator valid()" << dendl;
+  return keys_iter != keys.end();
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::next() {
+  dout(30) << "kinetic iterator next()" << dendl;
+  if (keys_iter != keys.end()) {
+      ++keys_iter;
+      return 0;
+  }
+  return -1;
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::prev() {
+  dout(30) << "kinetic iterator prev()" << dendl;
+  if (keys_iter != keys.begin()) {
+      --keys_iter;
+      return 0;
+  }
+  keys_iter = keys.end();
+  return -1;
+}
+
+string KineticStore::KineticWholeSpaceIteratorImpl::key() {
+  dout(30) << "kinetic iterator key()" << dendl;
+  string out_key;
+  split_key(*keys_iter, NULL, &out_key);
+  return out_key;
+}
+
+pair<string,string> KineticStore::KineticWholeSpaceIteratorImpl::raw_key() {
+  dout(30) << "kinetic iterator raw_key()" << dendl;
+  string prefix, key;
+  split_key(*keys_iter, &prefix, &key);
+  return make_pair(prefix, key);
+}
+
+bool KineticStore::KineticWholeSpaceIteratorImpl::raw_key_is_prefixed(const string &prefix) {
+  // Look for "prefix\1" right in *keys_iter without making a copy
+  string key = *keys_iter;
+  if ((key.size() > prefix.length()) && (key[prefix.length()] == '\1')) {
+    return memcmp(key.c_str(), prefix.c_str(), prefix.length()) == 0;
+  } else {
+    return false;
+  }
+}
+
+
+bufferlist KineticStore::KineticWholeSpaceIteratorImpl::value() {
+  dout(30) << "kinetic iterator value()" << dendl;
+  unique_ptr<kinetic::KineticRecord> record;
+  kinetic_status = kinetic_conn->Get(*keys_iter, record);
+  return to_bufferlist(*record.get());
+}
+
+int KineticStore::KineticWholeSpaceIteratorImpl::status() {
+  dout(30) << "kinetic iterator status()" << dendl;
+  return kinetic_status.ok() ? 0 : -1;
+}