SERVER-7775 add currentOp command

2 files changed, 102 insertions, 0 deletions

diff --git a/src/mongo/db/stats/fill_locker_info.cpp b/src/mongo/db/stats/fill_locker_info.cpp
new file mode 100644
index 00000000000..1bdcb2762f1
--- /dev/null
+++ b/src/mongo/db/stats/fill_locker_info.cpp
@@ -0,0 +1,62 @@
+/**
+ *    Copyright (C) 2015 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.
+ */
+
+#include "mongo/db/concurrency/locker.h"
+#include "mongo/db/jsobj.h"
+#include "mongo/db/stats/fill_locker_info.h"
+
+namespace mongo {
+
+    void fillLockerInfo(const Locker::LockerInfo& lockerInfo, BSONObjBuilder& infoBuilder) {
+        // "locks" section
+        BSONObjBuilder locks(infoBuilder.subobjStart("locks"));
+        for (size_t i = 0; i < lockerInfo.locks.size(); i++) {
+            const Locker::OneLock& lock = lockerInfo.locks[i];
+
+            if (resourceIdLocalDB == lock.resourceId) {
+                locks.append("local", legacyModeName(lock.mode));
+            }
+            else {
+                locks.append(resourceTypeName(lock.resourceId.getType()),
+                             legacyModeName(lock.mode));
+            }
+        }
+        locks.done();
+
+        // "waitingForLock" section
+        infoBuilder.append("waitingForLock", lockerInfo.waitingResource.isValid());
+
+        // "lockStats" section
+        {
+            BSONObjBuilder lockStats(infoBuilder.subobjStart("lockStats"));
+            lockerInfo.stats.report(&lockStats);
+            lockStats.done();
+        }
+    }
+
+}  // namespace mongo
diff --git a/src/mongo/db/stats/fill_locker_info.h b/src/mongo/db/stats/fill_locker_info.h
new file mode 100644
index 00000000000..b4743764e25
--- /dev/null
+++ b/src/mongo/db/stats/fill_locker_info.h
@@ -0,0 +1,40 @@
+/**
+ *    Copyright (C) 2015 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/concurrency/locker.h"
+
+namespace mongo {
+
+    /**
+     * Constructs a human-readable BSON from the specified LockerInfo structure.
+     */
+    void fillLockerInfo(const Locker::LockerInfo& lockerInfo, BSONObjBuilder& infoBuilder);
+
+}  // namespace mongo