SERVER-50703 Create global resource consumption structure

1 files changed, 76 insertions, 0 deletions

diff --git a/src/mongo/db/stats/resource_consumption_metrics_test.cpp b/src/mongo/db/stats/resource_consumption_metrics_test.cpp
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+++ b/src/mongo/db/stats/resource_consumption_metrics_test.cpp
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+/**
+ *    Copyright (C) 2020-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/platform/basic.h"
+
+#include "mongo/db/service_context_test_fixture.h"
+#include "mongo/db/stats/resource_consumption_metrics.h"
+#include "mongo/unittest/unittest.h"
+
+namespace mongo {
+
+class ResourceConsumptionMetricsTest : public ServiceContextTest {
+public:
+    void setUp() {
+        _opCtx = makeOperationContext();
+    }
+
+    typedef std::pair<ServiceContext::UniqueClient, ServiceContext::UniqueOperationContext>
+        ClientAndCtx;
+    ClientAndCtx makeClientAndCtx(const std::string& clientName) {
+        auto client = getServiceContext()->makeClient(clientName);
+        auto opCtx = client->makeOperationContext();
+        return std::make_pair(std::move(client), std::move(opCtx));
+    }
+
+protected:
+    ServiceContext::UniqueOperationContext _opCtx;
+};
+
+TEST_F(ResourceConsumptionMetricsTest, Add) {
+    auto& globalResourceConsumption = ResourceConsumption::get(getServiceContext());
+
+    auto [client2, opCtx2] = makeClientAndCtx("opCtx2");
+
+    auto& operationMetrics1 = ResourceConsumption::Metrics::get(_opCtx.get());
+    auto& operationMetrics2 = ResourceConsumption::Metrics::get(opCtx2.get());
+
+    operationMetrics1.setDbName("db1");
+    operationMetrics2.setDbName("db2");
+    globalResourceConsumption.add(operationMetrics1);
+    globalResourceConsumption.add(operationMetrics1);
+    globalResourceConsumption.add(operationMetrics2);
+    globalResourceConsumption.add(operationMetrics2);
+
+    auto globalMetrics = globalResourceConsumption.getMetrics();
+    ASSERT_EQ(globalMetrics.count("db1"), 1);
+    ASSERT_EQ(globalMetrics.count("db2"), 1);
+    ASSERT_EQ(globalMetrics.count("db3"), 0);
+}
+}  // namespace mongo