SERVER-35188 Rename ServiceLiason* types to ServiceLiaison*

1 files changed, 138 insertions, 0 deletions

diff --git a/src/mongo/db/service_liaison_mock.h b/src/mongo/db/service_liaison_mock.h
new file mode 100644
index 00000000000..26aaf611589
--- /dev/null
+++ b/src/mongo/db/service_liaison_mock.h
@@ -0,0 +1,138 @@
+/**
+ *    Copyright (C) 2017 MongoDB Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    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
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    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 GNU Affero General 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.
+ */
+
+#pragma once
+
+#include "mongo/db/service_context.h"
+#include "mongo/db/service_context_noop.h"
+#include "mongo/db/service_liaison.h"
+#include "mongo/executor/async_timer_mock.h"
+#include "mongo/platform/atomic_word.h"
+#include "mongo/stdx/condition_variable.h"
+#include "mongo/stdx/mutex.h"
+#include "mongo/util/periodic_runner.h"
+#include "mongo/util/time_support.h"
+
+namespace mongo {
+
+/**
+ * To allow us to move a MockServiceLiaison into the session cache while
+ * maintaining a hold on it from within our unit tests, the MockServiceLiaison
+ * will have an internal pointer to a MockServiceLiaisonImpl object that the
+ * test creates and controls.
+ *
+ * This class maintains an internal _activeSessions list that may be modified
+ * by the test caller. It also maintains an internal mocked representation of
+ * time, which the caller can fastForward(). The Date_t returned by now() will
+ * be the epoch + the amount of minutes this object has been fast-forwarded over
+ * course of its life.
+ *
+ * This service liaison starts up its internal periodic runner on construction.
+ */
+class MockServiceLiaisonImpl {
+public:
+    MockServiceLiaisonImpl();
+
+    // Forwarding methods from the MockServiceLiaison
+    LogicalSessionIdSet getActiveOpSessions() const;
+    LogicalSessionIdSet getOpenCursorSessions() const;
+    Date_t now() const;
+    void scheduleJob(PeriodicRunner::PeriodicJob job);
+    void join();
+
+    // Test-side methods that operate on the _activeSessions list.
+    void add(LogicalSessionId lsid);
+    void remove(LogicalSessionId lsid);
+    void clear();
+
+    void addCursorSession(LogicalSessionId lsid);
+    void removeCursorSession(LogicalSessionId lsid);
+    void clearCursorSession();
+
+    void fastForward(Milliseconds time);
+    int jobs();
+
+    const KillAllSessionsByPattern* matchKilled(const LogicalSessionId& lsid);
+    std::pair<Status, int> killCursorsWithMatchingSessions(OperationContext* opCtx,
+                                                           const SessionKiller::Matcher& matcher);
+
+private:
+    std::unique_ptr<executor::AsyncTimerFactoryMock> _timerFactory;
+    std::unique_ptr<PeriodicRunner> _runner;
+
+    boost::optional<SessionKiller::Matcher> _matcher;
+
+    mutable stdx::mutex _mutex;
+    LogicalSessionIdSet _activeSessions;
+    LogicalSessionIdSet _cursorSessions;
+};
+
+/**
+ * A mock service liaison for testing the logical session cache.
+ */
+class MockServiceLiaison : public ServiceLiaison {
+public:
+    explicit MockServiceLiaison(std::shared_ptr<MockServiceLiaisonImpl> impl)
+        : _impl(std::move(impl)) {}
+
+    LogicalSessionIdSet getActiveOpSessions() const override {
+        return _impl->getActiveOpSessions();
+    }
+
+    LogicalSessionIdSet getOpenCursorSessions() const override {
+        return _impl->getOpenCursorSessions();
+    }
+
+    Date_t now() const override {
+        return _impl->now();
+    }
+
+    void scheduleJob(PeriodicRunner::PeriodicJob job) override {
+        _impl->scheduleJob(std::move(job));
+    }
+
+    void join() override {
+        return _impl->join();
+    }
+
+    std::pair<Status, int> killCursorsWithMatchingSessions(
+        OperationContext* opCtx, const SessionKiller::Matcher& matcher) override {
+        return _impl->killCursorsWithMatchingSessions(opCtx, matcher);
+    }
+
+protected:
+    ServiceContext* _context() override {
+        return _serviceContext.get();
+    }
+
+private:
+    std::shared_ptr<MockServiceLiaisonImpl> _impl;
+    std::unique_ptr<ServiceContextNoop> _serviceContext;
+};
+
+}  // namespace mongo