diff --git a/td/telegram/Logging.cpp b/td/telegram/Logging.cpp
index abf7ec71c..728dec8ac 100644
--- a/td/telegram/Logging.cpp
+++ b/td/telegram/Logging.cpp
@@ -36,6 +36,7 @@
 #include "td/utils/logging.h"
 #include "td/utils/misc.h"
 #include "td/utils/port/detail/NativeFd.h"
+#include "td/utils/TsLog.h"
 
 #include <atomic>
 #include <map>
diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index 65e271762..fa0f548d6 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -45,6 +45,7 @@
 #include "td/utils/Status.h"
 #include "td/utils/StringBuilder.h"
 #include "td/utils/Time.h"
+#include "td/utils/TsLog.h"
 #include "td/utils/utf8.h"
 
 #ifndef USE_READLINE
diff --git a/tdutils/CMakeLists.txt b/tdutils/CMakeLists.txt
index 5f311cc8e..128c98fb7 100644
--- a/tdutils/CMakeLists.txt
+++ b/tdutils/CMakeLists.txt
@@ -116,6 +116,7 @@ set(TDUTILS_SOURCE
   td/utils/translit.cpp
   td/utils/TsCerr.cpp
   td/utils/TsFileLog.cpp
+  td/utils/TsLog.cpp
   td/utils/unicode.cpp
   td/utils/utf8.cpp
 
@@ -261,6 +262,7 @@ set(TDUTILS_SOURCE
   td/utils/TsCerr.h
   td/utils/TsFileLog.h
   td/utils/TsList.h
+  td/utils/TsLog.h
   td/utils/type_traits.h
   td/utils/UInt.h
   td/utils/uint128.h
diff --git a/tdutils/td/utils/TsLog.cpp b/tdutils/td/utils/TsLog.cpp
new file mode 100644
index 000000000..fe63114de
--- /dev/null
+++ b/tdutils/td/utils/TsLog.cpp
@@ -0,0 +1,21 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#include "td/utils/TsLog.h"
+
+#include "td/utils/ExitGuard.h"
+
+namespace td {
+
+void TsLog::enter_critical() {
+  while (lock_.test_and_set(std::memory_order_acquire) && !ExitGuard::is_exited()) {
+    // spin
+  }
+}
+
+static ExitGuard exit_guard;
+
+}  // namespace td
diff --git a/tdutils/td/utils/TsLog.h b/tdutils/td/utils/TsLog.h
new file mode 100644
index 000000000..4dfb3e44d
--- /dev/null
+++ b/tdutils/td/utils/TsLog.h
@@ -0,0 +1,55 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#pragma once
+
+#include "td/utils/common.h"
+#include "td/utils/logging.h"
+#include "td/utils/Slice.h"
+
+#include <atomic>
+
+namespace td {
+
+class TsLog : public LogInterface {
+ public:
+  explicit TsLog(LogInterface *log) : log_(log) {
+  }
+  void init(LogInterface *log) {
+    enter_critical();
+    log_ = log;
+    exit_critical();
+  }
+  void after_rotation() final {
+    enter_critical();
+    log_->after_rotation();
+    exit_critical();
+  }
+  vector<string> get_file_paths() final {
+    enter_critical();
+    auto result = log_->get_file_paths();
+    exit_critical();
+    return result;
+  }
+
+ private:
+  void do_append(int log_level, CSlice slice) final {
+    enter_critical();
+    log_->do_append(log_level, slice);
+    exit_critical();
+  }
+
+  void enter_critical();
+
+  void exit_critical() {
+    lock_.clear(std::memory_order_release);
+  }
+
+  LogInterface *log_ = nullptr;
+  std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
+};
+
+}  // namespace td
diff --git a/tdutils/td/utils/logging.cpp b/tdutils/td/utils/logging.cpp
index 3133349cc..692b6cfb9 100644
--- a/tdutils/td/utils/logging.cpp
+++ b/tdutils/td/utils/logging.cpp
@@ -150,10 +150,6 @@ Logger::~Logger() {
   }
 }
 
-void TsLog::exit_critical() {
-  lock_.clear(std::memory_order_release);
-}
-
 class DefaultLog : public LogInterface {
   void do_append(int log_level, CSlice slice) final {
 #if TD_ANDROID
diff --git a/tdutils/td/utils/logging.h b/tdutils/td/utils/logging.h
index e7ee57fde..1bfb8d693 100644
--- a/tdutils/td/utils/logging.h
+++ b/tdutils/td/utils/logging.h
@@ -146,16 +146,6 @@ inline int get_verbosity_level() {
   return log_options.get_level();
 }
 
-class ScopedDisableLog {
- public:
-  ScopedDisableLog();
-  ScopedDisableLog(const ScopedDisableLog &) = delete;
-  ScopedDisableLog &operator=(const ScopedDisableLog &) = delete;
-  ScopedDisableLog(ScopedDisableLog &&) = delete;
-  ScopedDisableLog &operator=(ScopedDisableLog &&) = delete;
-  ~ScopedDisableLog();
-};
-
 class LogInterface {
  public:
   LogInterface() = default;
@@ -228,6 +218,16 @@ class Logger {
   int log_level_;
 };
 
+class ScopedDisableLog {
+ public:
+  ScopedDisableLog();
+  ScopedDisableLog(const ScopedDisableLog &) = delete;
+  ScopedDisableLog &operator=(const ScopedDisableLog &) = delete;
+  ScopedDisableLog(ScopedDisableLog &&) = delete;
+  ScopedDisableLog &operator=(ScopedDisableLog &&) = delete;
+  ~ScopedDisableLog();
+};
+
 namespace detail {
 class Voidify {
  public:
@@ -237,38 +237,4 @@ class Voidify {
 };
 }  // namespace detail
 
-class TsLog : public LogInterface {
- public:
-  explicit TsLog(LogInterface *log) : log_(log) {
-  }
-  void init(LogInterface *log) {
-    enter_critical();
-    log_ = log;
-    exit_critical();
-  }
-  void after_rotation() final {
-    enter_critical();
-    log_->after_rotation();
-    exit_critical();
-  }
-  vector<string> get_file_paths() final {
-    enter_critical();
-    auto result = log_->get_file_paths();
-    exit_critical();
-    return result;
-  }
-
- private:
-  void do_append(int log_level, CSlice slice) final {
-    enter_critical();
-    log_->do_append(log_level, slice);
-    exit_critical();
-  }
-
-  LogInterface *log_ = nullptr;
-  std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
-  void enter_critical();
-  void exit_critical();
-};
-
 }  // namespace td
diff --git a/tdutils/test/log.cpp b/tdutils/test/log.cpp
index 63637ce36..de15185f3 100644
--- a/tdutils/test/log.cpp
+++ b/tdutils/test/log.cpp
@@ -17,6 +17,7 @@
 #include "td/utils/SliceBuilder.h"
 #include "td/utils/tests.h"
 #include "td/utils/TsFileLog.h"
+#include "td/utils/TsLog.h"
 
 #include <functional>
 #include <limits>