intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

3 files changed, 54 insertions, 0 deletions

diff --git a/library/cpp/time_provider/time_provider.cpp b/library/cpp/time_provider/time_provider.cpp
new file mode 100644
index 00000000000..6c1ba8e07c9
--- /dev/null
+++ b/library/cpp/time_provider/time_provider.cpp
@@ -0,0 +1,30 @@
+#include "time_provider.h"
+
+class TDefaultTimeProvider: public ITimeProvider {
+public:
+    TInstant Now() override {
+        return TInstant::Now();
+    }
+};
+
+class TDeterministicTimeProvider: public ITimeProvider {
+public:
+    TDeterministicTimeProvider(ui64 seed) {
+        Value = TInstant::Seconds(seed);
+    }
+
+    TInstant Now() override {
+        return Value;
+    }
+
+private:
+    TInstant Value;
+};
+
+TIntrusivePtr<ITimeProvider> CreateDefaultTimeProvider() {
+    return TIntrusivePtr<ITimeProvider>(new TDefaultTimeProvider());
+}
+
+TIntrusivePtr<ITimeProvider> CreateDeterministicTimeProvider(ui64 seed) {
+    return TIntrusivePtr<ITimeProvider>(new TDeterministicTimeProvider(seed));
+}
diff --git a/library/cpp/time_provider/time_provider.h b/library/cpp/time_provider/time_provider.h
new file mode 100644
index 00000000000..46e0a885dae
--- /dev/null
+++ b/library/cpp/time_provider/time_provider.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <util/datetime/base.h>
+
+class ITimeProvider: public TThrRefBase {
+public:
+    virtual TInstant Now() = 0;
+};
+
+TIntrusivePtr<ITimeProvider> CreateDefaultTimeProvider();
+TIntrusivePtr<ITimeProvider> CreateDeterministicTimeProvider(ui64 seed);
diff --git a/library/cpp/time_provider/ya.make b/library/cpp/time_provider/ya.make
new file mode 100644
index 00000000000..cf3995b2a46
--- /dev/null
+++ b/library/cpp/time_provider/ya.make
@@ -0,0 +1,13 @@
+LIBRARY()
+
+OWNER(
+    g:kikimr
+    g:yql
+)
+
+SRCS(
+    time_provider.cpp
+    time_provider.h
+)
+
+END()