YT-19210: expose YQL shared library for YT.

After this, a new target libyqlplugin.so appears. in open-source cmake build.
Diff in open-source YDB repo looks like the following: https://paste.yandex-team.ru/f302bdb4-7ef2-4362-91c7-6ca45f329264

1 files changed, 34 insertions, 0 deletions

diff --git a/yt/cpp/mapreduce/client/operation_tracker.cpp b/yt/cpp/mapreduce/client/operation_tracker.cpp
new file mode 100644
index 0000000000..56623e9927
--- /dev/null
+++ b/yt/cpp/mapreduce/client/operation_tracker.cpp
@@ -0,0 +1,34 @@
+#include "operation_tracker.h"
+
+#include <yt/cpp/mapreduce/interface/config.h>
+
+namespace NYT {
+
+////////////////////////////////////////////////////////////////////////////////
+
+void TOperationExecutionTimeTracker::Start(const TOperationId& operationId) {
+    with_lock(Lock_) {
+        StartTimes_[operationId] = TInstant::Now();
+    }
+}
+
+TMaybe<TDuration> TOperationExecutionTimeTracker::Finish(const TOperationId& operationId) {
+    TDuration duration;
+    with_lock(Lock_) {
+        auto i = StartTimes_.find(operationId);
+        if (i == StartTimes_.end()) {
+            return Nothing();
+        }
+        duration = TInstant::Now() - i->second;
+        StartTimes_.erase(i);
+    }
+    return duration;
+}
+
+TOperationExecutionTimeTracker* TOperationExecutionTimeTracker::Get() {
+    return Singleton<TOperationExecutionTimeTracker>();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT