Function init

fdbserver/KeyValueStoreSQLite.actor.cpp:1769–1801

			TraceEvent("KVWriterDestroyed", dbgid).log();
		}
		void init() override {
			if (checkAllChecksumsOnOpen) {
				if (conn.checkAllPageChecksums() != 0) {
					// It's not strictly necessary to discard the file immediately if a page checksum error is found
					// because most of the file could be valid and bad pages will be detected if they are read.
					// However, we shouldn't use the file unless we absolutely have to because some range(s) of keys
					// have effectively lost a replica.
					throw file_corrupt();
				}
			}
			conn.open(true);
			kvs->dbFile = conn.dbFile;
			kvs->walFile = conn.walFile;

			// If a wal file fails during the commit process before finishing a checkpoint, then it is possible that our
			// wal file will be non-empty when we reload it.  We execute a checkpoint here to remedy that situation.
			// This call must come before before creating a cursor because it will fail if there are any outstanding
			// transactions.
			fullCheckpoint();

			cursor = new Cursor(conn, true);

			if (checkIntegrityOnOpen || EXPENSIVE_VALIDATION) {
				if (conn.check(false) != 0) {
					// A corrupt btree structure must not be used.
					if (g_network->isSimulated() && VFSAsyncFile::checkInjectedError()) {
						throw file_corrupt().asInjectedFault();
					} else {
						throw file_corrupt();
					}
				}
			}
		}

		struct InitAction final : TypedAction<Writer, InitAction>, FastAllocated<InitAction> {
			ThreadReturnPromise<Void> result;