init push

2021-05-31 22:56:52 +08:00
commit cea7de1475
7020 changed files with 5689869 additions and 0 deletions
--- a/src/storage/ob_pg_macro_meta_checkpoint_reader.cpp
+++ b/src/storage/ob_pg_macro_meta_checkpoint_reader.cpp
@ -0,0 +1,106 @@
+/**
+ * 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 "storage/ob_pg_macro_meta_checkpoint_reader.h"
+#include "storage/ob_macro_meta_replay_map.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::blocksstable;
+using namespace oceanbase::storage;
+
+ObPGMacroMetaCheckpointReader::ObPGMacroMetaCheckpointReader() : reader_(), replay_map_(nullptr), is_inited_(false)
+{}
+
+int ObPGMacroMetaCheckpointReader::init(
+    const blocksstable::MacroBlockId& entry_block, ObStorageFileHandle& file_handle, ObMacroMetaReplayMap* replay_map)
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(is_inited_)) {
+    ret = OB_INIT_TWICE;
+    LOG_WARN("ObPGMacroMetaCheckpointReader has been inited twice", K(ret));
+  } else if (OB_UNLIKELY(!entry_block.is_valid() || !file_handle.is_valid() || nullptr == replay_map)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid arguments", K(ret), K(entry_block), K(file_handle), KP(replay_map));
+  } else if (OB_FAIL(reader_.init(entry_block, file_handle))) {
+    LOG_WARN("fail to init ObPGMacroMetaCheckpointReader", K(ret));
+  } else {
+    replay_map_ = replay_map;
+    is_inited_ = true;
+  }
+  return ret;
+}
+
+int ObPGMacroMetaCheckpointReader::read_checkpoint()
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObPGMacroMetaCheckpointReader has not been inited", K(ret));
+  } else {
+    ObMacroBlockKey macro_key;
+    ObObj endkey[OB_MAX_ROWKEY_COLUMN_NUMBER];
+
+    while (OB_SUCC(ret)) {
+      ObMacroBlockMetaV2 meta;
+      MEMSET(&meta, 0, sizeof(meta));
+      meta.endkey_ = endkey;
+      ObPGMacroBlockMetaCheckpointEntry entry(meta);
+      if (OB_FAIL(read_next_entry(entry))) {
+        if (OB_ITER_END != ret) {
+          LOG_WARN("fail to get next entry", K(ret));
+        } else {
+          ret = OB_SUCCESS;
+          break;
+        }
+      } else {
+        macro_key.table_key_ = entry.table_key_;
+        macro_key.macro_block_id_ = entry.macro_block_id_;
+        if (OB_FAIL(replay_map_->set(macro_key, entry.meta_, false /*overwrite*/))) {
+          LOG_WARN("fail to set to map", K(ret));
+        }
+      }
+    }
+  }
+  return ret;
+}
+
+int ObPGMacroMetaCheckpointReader::read_next_entry(ObPGMacroBlockMetaCheckpointEntry& entry)
+{
+  int ret = OB_SUCCESS;
+  ObPGMetaItemBuffer item;
+  int64_t pos = 0;
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("ObPGMacroMetaCheckpointReader has not been inited", K(ret));
+  } else if (OB_FAIL(reader_.get_next_item(item))) {
+    if (OB_ITER_END != ret) {
+      LOG_WARN("fail to get next item", K(ret));
+    }
+  } else if (OB_FAIL(entry.deserialize(item.buf_, item.buf_len_, pos))) {
+    LOG_WARN("fail to deserialize macro block meta checkpoint entry", K(ret));
+  }
+  return ret;
+}
+
+void ObPGMacroMetaCheckpointReader::reset()
+{
+  is_inited_ = false;
+  reader_.reset();
+  replay_map_ = nullptr;
+}
+
+ObIArray<MacroBlockId>& ObPGMacroMetaCheckpointReader::get_meta_block_list()
+{
+  return reader_.get_meta_block_list();
+}