SERVER-50616 TenantMigrationDonor should retry its steps until success, the donor node is stepping down or shutting down, or the donor gets an error that should lead to an abort decision

1 files changed, 59 insertions, 0 deletions

diff --git a/src/mongo/util/future_util.cpp b/src/mongo/util/future_util.cpp
new file mode 100644
index 00000000000..72517448cc8
--- /dev/null
+++ b/src/mongo/util/future_util.cpp
@@ -0,0 +1,59 @@
+/**
+ *    Copyright (C) 2019-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/util/future_util.h"
+
+namespace mongo {
+
+ExecutorFuture<void> sleepUntil(std::shared_ptr<executor::TaskExecutor> executor,
+                                const Date_t& date) {
+    auto [promise, future] = makePromiseFuture<void>();
+    auto taskCompletionPromise = std::make_shared<Promise<void>>(std::move(promise));
+
+    auto scheduledWorkHandle = executor->scheduleWorkAt(
+        date, [taskCompletionPromise](const executor::TaskExecutor::CallbackArgs& args) mutable {
+            if (args.status.isOK()) {
+                taskCompletionPromise->emplaceValue();
+            } else {
+                taskCompletionPromise->setError(args.status);
+            }
+        });
+
+    if (!scheduledWorkHandle.isOK()) {
+        taskCompletionPromise->setError(scheduledWorkHandle.getStatus());
+    }
+    return std::move(future).thenRunOn(executor);
+}
+
+ExecutorFuture<void> sleepFor(std::shared_ptr<executor::TaskExecutor> executor,
+                              Milliseconds duration) {
+    return sleepUntil(executor, executor->now() + duration);
+}
+
+}  // namespace mongo