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src/storage/ob_macro_meta_replay_map.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX STORAGE
+
+#include "ob_macro_meta_replay_map.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::blocksstable;
+using namespace oceanbase::storage;
+
+ObMacroBlockKey::ObMacroBlockKey() : table_key_(), macro_block_id_()
+{}
+
+ObMacroBlockKey::ObMacroBlockKey(const ObITable::TableKey& table_key, const blocksstable::MacroBlockId& macro_block_id)
+    : table_key_(table_key), macro_block_id_(macro_block_id)
+{}
+
+uint64_t ObMacroBlockKey::hash() const
+{
+  uint64_t hash_val = table_key_.hash();
+  uint64_t hash_macro_block_id = macro_block_id_.hash();
+  hash_val = common::murmurhash2(&hash_macro_block_id, sizeof(hash_macro_block_id), hash_val);
+  return hash_val;
+}
+
+bool ObMacroBlockKey::operator==(const ObMacroBlockKey& other) const
+{
+  bool bret = table_key_ == other.table_key_ && macro_block_id_ == other.macro_block_id_;
+  return bret;
+}
+
+ObMacroMetaReplayMap::ObMacroMetaReplayMap() : map_(), map_lock_(), is_inited_(false)
+{}
+
+ObMacroMetaReplayMap::~ObMacroMetaReplayMap()
+{
+  destroy();
+}
+
+int ObMacroMetaReplayMap::init()
+{
+  int ret = OB_SUCCESS;
+  const char* label = "MacroMetaReplay";
+  if (OB_UNLIKELY(is_inited_)) {
+    ret = OB_INIT_TWICE;
+    LOG_WARN("ObMacroMetaReplayMap has been inited twice", K(ret));
+  } else if (OB_FAIL(map_.create(REPLAY_BUCKET_CNT, label))) {
+    LOG_WARN("fail to create macro meta map", K(ret));
+  } else if (OB_FAIL(allocator_.init(OB_MALLOC_BIG_BLOCK_SIZE, label))) {
+    LOG_WARN("fail to init allocator", K(ret));
+  } else {
+    is_inited_ = true;
+  }
+  return ret;
+}
+
+int ObMacroMetaReplayMap::set(const ObMacroBlockKey& key, ObMacroBlockMetaV2& meta, const bool overwrite)
+{
+  int ret = OB_SUCCESS;
+  ObMacroBlockMetaV2* new_meta = nullptr;
+  lib::ObMutexGuard guard(map_lock_);
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObMacroMetaReplayMap has not been inited", K(ret));
+  } else if (OB_FAIL(meta.deep_copy(new_meta, allocator_))) {
+    LOG_WARN("fail to deep copy macro meta", K(ret));
+  } else if (OB_FAIL(map_.set_refactored(key, new_meta))) {
+    if (OB_HASH_EXIST == ret) {
+      ret = OB_SUCCESS;
+      if (overwrite) {
+        ObMacroBlockMetaV2* delete_meta = nullptr;
+        if (OB_FAIL(map_.erase_refactored(key, &delete_meta))) {
+          LOG_WARN("fail to erase from map", K(ret), K(key));
+        } else if (OB_FAIL(map_.set_refactored(key, new_meta))) {
+          LOG_WARN("fail to overwrite map", K(ret), K(key), K(overwrite), K(meta));
+        } else {
+          new_meta = nullptr;
+          delete_meta->~ObMacroBlockMetaV2();
+          allocator_.free(delete_meta);
+          delete_meta = nullptr;
+          LOG_INFO("succeed to overwrite replay macro meta", K(key), K(*new_meta), K(key.hash()));
+        }
+      }
+    } else {
+      LOG_WARN("fail to set map", K(ret), K(key), K(overwrite), K(meta));
+    }
+  } else {
+    new_meta = nullptr;
+    LOG_INFO("succeed to set replay macro meta", K(key), K(*new_meta), K(key.hash()));
+  }
+  if (nullptr != new_meta) {
+    new_meta->~ObMacroBlockMetaV2();
+    new_meta = nullptr;
+  }
+  return ret;
+}
+
+int ObMacroMetaReplayMap::get(const ObMacroBlockKey& key, ObMacroBlockMetaV2*& meta)
+{
+  int ret = OB_SUCCESS;
+  meta = nullptr;
+  lib::ObMutexGuard guard(map_lock_);
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObMacroMetaReplayMap has not been inited", K(ret));
+  } else if (OB_FAIL(map_.get_refactored(key, meta))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      ret = OB_ENTRY_NOT_EXIST;
+    } else {
+      LOG_WARN("fail to get from hashmap", K(ret), K(key));
+    }
+  }
+  return ret;
+}
+
+int ObMacroMetaReplayMap::remove(const ObITable::TableKey& table_key, const blocksstable::MacroBlockId& block_id)
+{
+  int ret = OB_SUCCESS;
+  ObMacroBlockKey macro_key;
+  macro_key.table_key_ = table_key;
+  macro_key.macro_block_id_ = block_id;
+  ObMacroBlockMetaV2* meta = nullptr;
+  lib::ObMutexGuard guard(map_lock_);
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObMacroMetaReplayMap has not been inited", K(ret));
+  } else if (OB_FAIL(map_.erase_refactored(macro_key, &meta))) {
+    LOG_WARN("fail to erase from map", K(ret), K(macro_key));
+  } else {
+    meta->~ObMacroBlockMetaV2();
+    allocator_.free(meta);
+    meta = nullptr;
+  }
+  return ret;
+}
+
+int ObMacroMetaReplayMap::remove(
+    const ObITable::TableKey& table_key, const common::ObIArray<blocksstable::MacroBlockId>& block_ids)
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObMacroMetaReplayMap has not been inited", K(ret));
+  } else {
+    for (int64_t i = 0; OB_SUCC(ret) && i < block_ids.count(); ++i) {
+      if (OB_FAIL(remove(table_key, block_ids.at(i)))) {
+        LOG_WARN("fail to remove macro key", K(ret), K(table_key));
+      }
+    }
+  }
+  return ret;
+}
+
+void ObMacroMetaReplayMap::destroy()
+{
+  if (is_inited_) {
+    for (MAP::iterator iter = map_.begin(); iter != map_.end(); ++iter) {
+      ObMacroBlockMetaV2* meta = iter->second;
+      if (nullptr != meta) {
+        meta->~ObMacroBlockMetaV2();
+        allocator_.free(meta);
+        meta = nullptr;
+      }
+    }
+    map_.destroy();
+    allocator_.destroy();
+    is_inited_ = false;
+  }
+}