1 files changed, 109 insertions, 0 deletions
diff --git a/src/mds/SimpleLock.cc b/src/mds/SimpleLock.cc
new file mode 100644
index 000000000..b23915f94
--- /dev/null
+++ b/src/mds/SimpleLock.cc
@@ -0,0 +1,109 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2015 Red Hat
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software 
+ * Foundation.  See file COPYING.
+ * 
+ */
+
+
+#include "SimpleLock.h"
+#include "Mutation.h"
+
+void SimpleLock::dump(ceph::Formatter *f) const {
+  ceph_assert(f != NULL);
+  if (is_sync_and_unlocked()) {
+    return;
+  }
+
+  f->open_array_section("gather_set");
+  if (have_more()) {
+    for(const auto &i : more()->gather_set) {
+      f->dump_int("rank", i);
+    }
+  }
+  f->close_section();
+
+  f->dump_string("state", get_state_name(get_state()));
+  f->dump_string("type", get_lock_type_name(get_type()));
+  f->dump_bool("is_leased", is_leased());
+  f->dump_int("num_rdlocks", get_num_rdlocks());
+  f->dump_int("num_wrlocks", get_num_wrlocks());
+  f->dump_int("num_xlocks", get_num_xlocks());
+  f->open_object_section("xlock_by");
+  if (auto mut = get_xlock_by(); mut) {
+    f->dump_object("reqid", mut->reqid);
+  }
+  f->close_section();
+}
+
+int SimpleLock::get_wait_shift() const {
+  switch (get_type()) {
+    case CEPH_LOCK_DN:       return 8;
+    case CEPH_LOCK_DVERSION: return 8 + 1*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IAUTH:    return 8 + 2*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_ILINK:    return 8 + 3*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IDFT:     return 8 + 4*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IFILE:    return 8 + 5*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IVERSION: return 8 + 6*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IXATTR:   return 8 + 7*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_ISNAP:    return 8 + 8*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_INEST:    return 8 + 9*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IFLOCK:   return 8 +10*SimpleLock::WAIT_BITS;
+    case CEPH_LOCK_IPOLICY:  return 8 +11*SimpleLock::WAIT_BITS;
+    default:
+      ceph_abort();
+  }
+}
+
+int SimpleLock::get_cap_shift() const {
+  switch (get_type()) {
+    case CEPH_LOCK_IAUTH: return CEPH_CAP_SAUTH;
+    case CEPH_LOCK_ILINK: return CEPH_CAP_SLINK;
+    case CEPH_LOCK_IFILE: return CEPH_CAP_SFILE;
+    case CEPH_LOCK_IXATTR: return CEPH_CAP_SXATTR;
+    default: return 0;
+  }
+}
+
+int SimpleLock::get_cap_mask() const {
+  switch (get_type()) {
+    case CEPH_LOCK_IFILE: return (1 << CEPH_CAP_FILE_BITS) - 1;
+    default: return (1 << CEPH_CAP_SIMPLE_BITS) - 1;
+  }
+}
+
+SimpleLock::unstable_bits_t::unstable_bits_t() :
+  lock_caches(member_offset(MDLockCache::LockItem, item_lock)) {}
+
+void SimpleLock::add_cache(MDLockCacheItem& item) {
+  more()->lock_caches.push_back(&item.item_lock);
+  state_flags |= CACHED;
+}
+
+void SimpleLock::remove_cache(MDLockCacheItem& item) {
+  auto& lock_caches = more()->lock_caches;
+  item.item_lock.remove_myself();
+  if (lock_caches.empty()) {
+    state_flags &= ~CACHED;
+    try_clear_more();
+  }
+}
+
+std::vector<MDLockCache*> SimpleLock::get_active_caches() {
+  std::vector<MDLockCache*> result;
+  if (have_more()) {
+    for (auto it = more()->lock_caches.begin_use_current(); !it.end(); ++it) {
+      auto lock_cache = (*it)->parent;
+      if (!lock_cache->invalidating)
+	result.push_back(lock_cache);
+    }
+  }
+  return result;
+}