intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 20 insertions, 0 deletions

diff --git a/library/cpp/logger/thread_creator.h b/library/cpp/logger/thread_creator.h
new file mode 100644
index 0000000000..9e5ee9571d
--- /dev/null
+++ b/library/cpp/logger/thread_creator.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "backend_creator.h"
+
+#include <functional>
+
+class TOwningThreadedLogBackendCreator: public ILogBackendCreator {
+public:
+    TOwningThreadedLogBackendCreator(THolder<ILogBackendCreator>&& slave);
+    virtual bool Init(const IInitContext& ctx) override;
+    virtual void ToJson(NJson::TJsonValue& value) const override;
+    void SetQueueOverflowCallback(std::function<void()> callback);
+    void SetQueueLen(size_t len);
+
+private:
+    virtual THolder<TLogBackend> DoCreateLogBackend() const override;
+    THolder<ILogBackendCreator> Slave;
+    std::function<void()> QueueOverflowCallback = {};
+    size_t QueueLen = 0;
+};