Missed highlevel function for transactions

src/commonMain/kotlin/ru/landgrafhomyak/db/serdha0/user_commons/executors/transaction.kt

@@ -0,0 +1,36 @@
+@file:OptIn(LowLevelApi::class)
+
+package ru.landgrafhomyak.db.serdha0.user_commons.executors
+
+import ru.landgrafhomyak.db.serdha0.api.LowLevelApi
+
+import ru.landgrafhomyak.db.serdha0.api.runtime.Executor
+import ru.landgrafhomyak.db.serdha0.api.runtime.Transaction
+
+public suspend inline fun <R> Executor.transaction(scope: (Transaction) -> R): R {
+	val transaction = this._startTransaction()
+	var e1: Throwable? = null
+	try {
+		return scope(transaction)
+	} catch (e: Throwable) {
+		e1 = e
+		throw e
+	} finally {
+		try {
+			transaction._assertTransactionFinishedAndReleaseResources()
+		} catch (e2: Throwable) {
+			if (e1 == null) {
+				throw e2
+			} else {
+				e1.addSuppressed(e2)
+			}
+		}
+	}
+}
+
+public suspend inline fun <R> Executor.autoCommittedTransaction(scope: (Transaction) -> R): R =
+	this.transaction { transaction ->
+		_safeAutoClose(onAbort = { transaction.rollback() }, onSuccess = { transaction.commit() }) {
+			return@transaction scope(transaction)
+		}
+	}