diff --git a/CMakeLists.txt b/CMakeLists.txt
index f0a9b22f..6f21bfe6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,7 +41,8 @@ set(PIP_SRC_USB      "src_usb")
 set(PIP_SRC_FFTW     "src_fftw")
 set(PIP_SRC_OPENCL   "src_opencl")
 set(PIP_SRC_IO_UTILS "src_io_utils")
-set(PIP_SRC_DIRS "src_main" "src_crypt" "src_compress" "src_usb" "src_fftw" "src_opencl" "src_io_utils")
+set(PIP_SRC_CONCURRENT "src_concurrent")
+set(PIP_SRC_DIRS "src_main" "src_crypt" "src_compress" "src_usb" "src_fftw" "src_opencl" "src_io_utils" "src_concurrent")
 set(PIP_LIBS_TARGETS pip)
 set(LIBS_MAIN)
 set(LIBS_STATUS)
@@ -129,7 +130,7 @@ get_filename_component(C_COMPILER "${CMAKE_C_COMPILER}" NAME)
 # Sources
 
 # Main lib
-set(PIP_FOLDERS "." "core" "containers" "thread" "system" "io_devices" "io_utils" "console" "math" "code" "geo" "resources" "opencl" "crypt" "introspection")
+set(PIP_FOLDERS "." "core" "containers" "thread" "system" "io_devices" "io_utils" "console" "math" "code" "geo" "resources" "opencl" "crypt" "introspection" "concurrent")
 if(PIP_FREERTOS)
 	#list(REMOVE_ITEM PIP_FOLDERS "console")
 	#include_directories("${PIP_SRC_MAIN}/console")
@@ -159,6 +160,8 @@ gather_src("${PIP_SRC_OPENCL}" CPP_LIB_OPENCL HDRS PHDRS)
 # IO Utils lib
 gather_src("${PIP_SRC_IO_UTILS}" CPP_LIB_IO_UTILS HDRS PHDRS)
 
+gather_src("${PIP_SRC_CONCURRENT}" CPP_LIB_CONCURRENT HDRS PHDRS)
+
 
 if(PIP_FREERTOS)
 	add_definitions(-DPIP_FREERTOS)
@@ -472,12 +475,21 @@ if (NOT PIP_FREERTOS)
 	target_link_libraries(pip_io_utils ${IO_UTILS_LIBS})
 	list(APPEND PIP_LIBS_TARGETS pip_io_utils)
 
+	set(CONCURRENT_LIBS pip)
+	add_library(pip_concurrent ${PIP_LIB_TYPE} ${CPP_LIB_CONCURRENT})
+	target_link_libraries(pip_concurrent ${CONCURRENT_LIBS})
+	list(APPEND PIP_LIBS_TARGETS pip_concurrent)
 
 	# Test program
 	if(PIP_UTILS)
 		add_executable(pip_test "main.cpp")
 		target_link_libraries(pip_test pip)
 	endif()
+
+	# Enable build tests for module concurrent
+	if(CONCURRENT_TESTING)
+		add_subdirectory(src_concurrent/test)
+	endif()
 	
 else(NOT PIP_FREERTOS)
 	message(STATUS "Building PIP with crypt support")
@@ -525,7 +537,7 @@ if(LIB)
 	#add_custom_target(pip_pch ALL COMMAND ${CMAKE_CXX_COMPILER} -O2 -fPIC -g3 ${CMAKE_INSTALL_PREFIX}/include/pip/pip.h DEPENDS pip SOURCES ${HDRS})
 	#list(APPEND HDRS "pip.h.gch")
 	file(GLOB CMAKES "*.cmake")
-	install(FILES ${CMAKES} DESTINATION ${CMAKE_ROOT}/Modules)
+#	install(FILES ${CMAKES} DESTINATION ${CMAKE_ROOT}/Modules)
 else()
 	if(NOT PIP_FREERTOS)
 		install(TARGETS ${PIP_LIBS_TARGETS} DESTINATION bin)
diff --git a/src_concurrent/executor.cpp b/src_concurrent/executor.cpp
new file mode 100644
index 00000000..82df5b72
--- /dev/null
+++ b/src_concurrent/executor.cpp
@@ -0,0 +1,50 @@
+//
+// Created by fomenko on 23.09.2019.
+//
+
+#include "executor.h"
+
+PIThreadPoolExecutor::PIThreadPoolExecutor(size_t corePoolSize, PIBlockingDequeue<std::function<void()>> *taskQueue_,
+                                           PIThreadFactory *threadFactory) : isShutdown_(false), taskQueue(taskQueue_), threadFactory(threadFactory) {
+    for (size_t i = 0; i < corePoolSize; ++i) {
+        AbstractThread* thread = threadFactory->newThread([&, i](){
+            auto runnable = taskQueue->poll(100, std::function<void()>());
+            if (runnable) {
+                runnable();
+            } else if (isShutdown_) threadPool[i]->stop();
+        });
+        threadPool.push_back(thread);
+        thread->start();
+    }
+}
+
+bool PIThreadPoolExecutor::awaitTermination(int timeoutMs) {
+    PITimeMeasurer measurer;
+    for (size_t i = 0; i < threadPool.size(); ++i) {
+        int dif = timeoutMs - (int)measurer.elapsed_m();
+        if (dif < 0) return false;
+        if (!threadPool[i]->waitForFinish(dif)) return false;
+    }
+    return true;
+}
+
+void PIThreadPoolExecutor::shutdownNow() {
+    isShutdown_ = true;
+    for (size_t i = 0; i < threadPool.size(); ++i) threadPool[i]->stop();
+}
+
+PIThreadPoolExecutor::~PIThreadPoolExecutor() {
+    shutdownNow();
+    taskQueue->getConditionVar()->notifyAll();
+    while (threadPool.size() > 0) delete threadPool.take_back();
+    delete threadFactory;
+    delete taskQueue;
+}
+
+void PIThreadPoolExecutor::execute(const std::function<void()> &runnable) {
+    if (!isShutdown_) taskQueue->offer(runnable);
+}
+
+volatile bool PIThreadPoolExecutor::isShutdown() const {
+    return isShutdown_;
+}
diff --git a/src_concurrent/piconditionlock.cpp b/src_concurrent/piconditionlock.cpp
new file mode 100644
index 00000000..5c1f4ec7
--- /dev/null
+++ b/src_concurrent/piconditionlock.cpp
@@ -0,0 +1,81 @@
+//
+// Created by fomenko on 25.09.2019.
+//
+
+#include "piconditionlock.h"
+#ifdef WINDOWS
+#include "synchapi.h"
+#else
+#include "pthread.h"
+#endif
+
+PRIVATE_DEFINITION_START(PIConditionLock)
+#ifdef WINDOWS
+    CRITICAL_SECTION
+#else
+    pthread_mutex_t
+#endif
+    nativeHandle;
+PRIVATE_DEFINITION_END(PIConditionLock)
+
+#ifdef WINDOWS
+PIConditionLock::PIConditionLock() {
+    InitializeCriticalSection(&PRIVATE->nativeHandle);
+}
+
+PIConditionLock::~PIConditionLock() {
+    DeleteCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void PIConditionLock::lock() {
+    EnterCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void PIConditionLock::unlock() {
+    LeaveCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void *PIConditionLock::handle() {
+    return &PRIVATE->nativeHandle;
+}
+
+bool PIConditionLock::tryLock() {
+    return TryEnterCriticalSection(&PRIVATE->nativeHandle) != 0;
+}
+
+#else
+
+PIConditionLock::PIConditionLock() {
+    pthread_mutexattr_t attr;
+    memset(&attr, 0, sizeof(attr));
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    memset(&(PRIVATE->nativeHandle), 0, sizeof(PRIVATE->nativeHandle));
+    pthread_mutex_init(&(PRIVATE->nativeHandle), &attr);
+    pthread_mutexattr_destroy(&attr);
+}
+
+PIConditionLock::~PIConditionLock() {
+    pthread_mutex_destroy(&(PRIVATE->nativeHandle));
+}
+
+void PIConditionLock::lock() {
+    pthread_mutex_lock(&(PRIVATE->nativeHandle));
+}
+
+void PIConditionLock::unlock() {
+    pthread_mutex_unlock(&(PRIVATE->nativeHandle));
+}
+
+void *PIConditionLock::handle() {
+    return &PRIVATE->nativeHandle;
+}
+
+bool PIConditionLock::tryLock() {
+    return (pthread_mutex_trylock(&(PRIVATE->nativeHandle)) == 0);;
+}
+#endif
+
+
+
+
diff --git a/src_concurrent/piconditionvar.cpp b/src_concurrent/piconditionvar.cpp
new file mode 100644
index 00000000..450eb460
--- /dev/null
+++ b/src_concurrent/piconditionvar.cpp
@@ -0,0 +1,129 @@
+//
+// Created by fomenko on 20.09.2019.
+//
+
+#include "piplatform.h"
+#ifdef WINDOWS
+#define _WIN32_WINNT 0x0600
+#include "synchapi.h"
+#include <windef.h>
+#include <winbase.h>
+#else
+
+#endif
+
+#include "piconditionvar.h"
+#include "pithread.h"
+#include "pitime.h"
+
+PRIVATE_DEFINITION_START(PIConditionVariable)
+#ifdef WINDOWS
+    CONDITION_VARIABLE nativeHandle;
+#else
+    pthread_cond_t nativeHandle;
+    PIConditionLock* currentLock;
+#endif
+    bool isDestroying;
+PRIVATE_DEFINITION_END(PIConditionVariable)
+
+PIConditionVariable::PIConditionVariable() {
+#ifdef WINDOWS
+    InitializeConditionVariable(&PRIVATE->nativeHandle);
+#else
+    PRIVATE->isDestroying = false;
+    PRIVATE->currentLock = nullptr;
+    memset(&(PRIVATE->nativeHandle), 0, sizeof(PRIVATE->nativeHandle));
+    pthread_cond_init(&PRIVATE->nativeHandle, NULL);
+#endif
+}
+
+PIConditionVariable::~PIConditionVariable() {
+#ifdef WINDOWS
+#else
+    pthread_cond_destroy(&PRIVATE->nativeHandle);
+#endif
+
+}
+
+void PIConditionVariable::wait(PIConditionLock& lk) {
+#ifdef WINDOWS
+    SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), INFINITE);
+#else
+    pthread_cond_wait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle());
+#endif
+}
+
+void PIConditionVariable::wait(PIConditionLock& lk, const std::function<bool()>& condition) {
+    bool isCondition;
+    while (true) {
+        isCondition = condition();
+        if (isCondition) break;
+#ifdef WINDOWS
+        SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), INFINITE);
+#else
+        pthread_cond_wait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle());
+#endif
+        if (PRIVATE->isDestroying) return;
+    }
+}
+
+bool PIConditionVariable::waitFor(PIConditionLock &lk, int timeoutMs) {
+    bool isTimeout;
+#ifdef WINDOWS
+    isTimeout = SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), timeoutMs) != 0;
+#else
+    timespec abstime = {.tv_sec = timeoutMs / 1000, .tv_nsec = timeoutMs * 1000 * 1000};
+    isTimeout = pthread_cond_timedwait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle(), &abstime) == 0;
+#endif
+    if (PRIVATE->isDestroying) return false;
+    return isTimeout;
+}
+
+bool PIConditionVariable::waitFor(PIConditionLock& lk, int timeoutMs, const std::function<bool()> &condition) {
+    bool isCondition;
+    PITimeMeasurer measurer;
+    while (true) {
+        isCondition = condition();
+        if (isCondition) break;
+#ifdef WINDOWS
+        WINBOOL isTimeout = SleepConditionVariableCS(
+                &PRIVATE->nativeHandle,
+                (PCRITICAL_SECTION)lk.handle(),
+                timeoutMs - (int)measurer.elapsed_m());
+        if (isTimeout == 0) return false;
+#else
+        int timeoutCurr = timeoutMs - (int)measurer.elapsed_m();
+        timespec abstime = {.tv_sec = timeoutCurr / 1000, .tv_nsec = timeoutCurr * 1000 * 1000};
+        bool isTimeout = pthread_cond_timedwait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle(), &abstime) == 0;
+        if (isTimeout) return false;
+#endif
+        if (PRIVATE->isDestroying) return false;
+    }
+    return true;
+}
+
+
+void PIConditionVariable::notifyOne() {
+#ifdef WINDOWS
+    WakeConditionVariable(&PRIVATE->nativeHandle);
+#else
+    pthread_cond_signal(&PRIVATE->nativeHandle);
+#endif
+}
+void PIConditionVariable::notifyAll() {
+#ifdef WINDOWS
+    WakeAllConditionVariable(&PRIVATE->nativeHandle);
+#else
+    pthread_cond_broadcast(&PRIVATE->nativeHandle);
+#endif
+}
+
+void StdFunctionThreadFuncAdapter::threadFuncStdFunctionAdapter(void *it) {
+    auto consumer = (StdFunctionThreadFuncAdapter*)it;
+    consumer->fun();
+}
+
+void StdFunctionThreadFuncAdapter::registerToInvoke(PIThread *thread) {
+    thread->setData(data());
+    thread->setSlot((ThreadFunc) threadFunc());
+}
diff --git a/src_concurrent/test/BlockingDequeueUnitTest.cpp b/src_concurrent/test/BlockingDequeueUnitTest.cpp
new file mode 100644
index 00000000..3b1b9365
--- /dev/null
+++ b/src_concurrent/test/BlockingDequeueUnitTest.cpp
@@ -0,0 +1,211 @@
+//
+// Created by fomenko on 23.09.2019.
+//
+
+#include "gtest/gtest.h"
+#include "piblockingdequeue.h"
+
+class MockConditionVar: public PIConditionVariable {
+public:
+    bool isWaitCalled = false;
+    bool isWaitForCalled = false;
+    bool isTrueCondition = false;
+    int timeout = -1;
+
+    void wait(PIConditionLock& lk) override {
+        isWaitCalled = true;
+    }
+
+    void wait(PIConditionLock& lk, const std::function<bool()>& condition) override {
+        isWaitCalled = true;
+        lk.lock();
+        isTrueCondition = condition();
+        lk.unlock();
+    }
+
+    bool waitFor(PIConditionLock& lk, int timeoutMs) override {
+        isWaitForCalled = true;
+        timeout = timeoutMs;
+        return false;
+    }
+
+    bool waitFor(PIConditionLock& lk, int timeoutMs, const std::function<bool()>& condition) override {
+        isWaitForCalled = true;
+        lk.lock();
+        isTrueCondition = condition();
+        timeout = timeoutMs;
+        lk.unlock();
+        return isTrueCondition;
+    }
+};
+
+TEST(BlockingDequeueUnitTest, offer_is_true_before_capacity_reach) {
+    size_t capacity = 1;
+    PIBlockingDequeue<int> dequeue(capacity);
+    ASSERT_TRUE(dequeue.offer(10));
+}
+
+TEST(BlockingDequeueUnitTest, offer_is_false_when_capacity_reach) {
+    size_t capacity = 1;
+    PIBlockingDequeue<int> dequeue(capacity);
+    dequeue.offer(11);
+    ASSERT_FALSE(dequeue.offer(10));
+}
+
+// TODO change take_is_block_when_empty to prevent segfault
+TEST(DISABLED_BlockingDequeueUnitTest, take_is_block_when_empty) {
+    size_t capacity = 1;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    // May cause segfault because take front of empty queue
+    dequeue.take();
+    EXPECT_TRUE(conditionVar->isWaitCalled);
+    ASSERT_FALSE(conditionVar->isTrueCondition);
+}
+
+TEST(BlockingDequeueUnitTest, take_is_not_block_when_not_empty) {
+    size_t capacity = 1;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    dequeue.offer(111);
+    dequeue.take();
+
+    EXPECT_TRUE(conditionVar->isWaitCalled);
+    ASSERT_TRUE(conditionVar->isTrueCondition);
+}
+
+TEST(BlockingDequeueUnitTest, take_is_value_eq_to_offer_value) {
+    size_t capacity = 1;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.take(), 111);
+}
+
+TEST(BlockingDequeueUnitTest, take_is_last) {
+    size_t capacity = 10;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    EXPECT_TRUE(dequeue.offer(111));
+    EXPECT_TRUE(dequeue.offer(222));
+    ASSERT_EQ(dequeue.take(), 111);
+    ASSERT_EQ(dequeue.take(), 222);
+}
+
+TEST(BlockingDequeueUnitTest, poll_is_block_when_empty) {
+    size_t capacity = 1;
+    int timeout = 11;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    dequeue.poll(timeout, 111);
+    EXPECT_TRUE(conditionVar->isWaitForCalled);
+    EXPECT_EQ(timeout, conditionVar->timeout);
+    ASSERT_FALSE(conditionVar->isTrueCondition);
+}
+
+TEST(BlockingDequeueUnitTest, poll_is_default_value_when_empty) {
+    size_t capacity = 1;
+    int timeout = 11;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    ASSERT_EQ(dequeue.poll(timeout, 111), 111);
+}
+
+TEST(BlockingDequeueUnitTest, poll_is_not_block_when_not_empty) {
+    size_t capacity = 1;
+    int timeout = 11;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    dequeue.offer(111);
+    dequeue.poll(timeout, -1);
+
+    EXPECT_TRUE(conditionVar->isWaitForCalled);
+    ASSERT_TRUE(conditionVar->isTrueCondition);
+}
+
+TEST(BlockingDequeueUnitTest, poll_is_offer_value_when_not_empty) {
+    size_t capacity = 1;
+    int timeout = 11;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.poll(timeout, -1), 111);
+}
+
+TEST(BlockingDequeueUnitTest, poll_is_last) {
+    size_t capacity = 10;
+    auto conditionVar = new MockConditionVar();
+    PIBlockingDequeue<int> dequeue(capacity, conditionVar);
+    dequeue.offer(111);
+    dequeue.offer(222);
+    ASSERT_EQ(dequeue.poll(10, -1), 111);
+    ASSERT_EQ(dequeue.poll(10, -1), 222);
+}
+
+TEST(BlockingDequeueUnitTest, capacity_is_eq_constructor_capacity) {
+    size_t capacity = 10;
+    PIBlockingDequeue<int> dequeue(capacity);
+    ASSERT_EQ(dequeue.capacity(), capacity);
+}
+
+TEST(BlockingDequeueUnitTest, remainingCapacity_is_dif_of_capacity_and_size) {
+    size_t capacity = 2;
+    PIBlockingDequeue<int> dequeue(capacity);
+    ASSERT_EQ(dequeue.remainingCapacity(), capacity);
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.remainingCapacity(), capacity - 1);
+}
+
+TEST(BlockingDequeueUnitTest, remainingCapacity_is_zero_when_capacity_reach) {
+    size_t capacity = 1;
+    PIBlockingDequeue<int> dequeue(capacity);
+    dequeue.offer(111);
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.remainingCapacity(), 0);
+}
+
+TEST(BlockingDequeueUnitTest, size_is_eq_to_num_of_elements) {
+    size_t capacity = 1;
+    PIBlockingDequeue<int> dequeue(capacity);
+    ASSERT_EQ(dequeue.size(), 0);
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.size(), 1);
+}
+
+TEST(BlockingDequeueUnitTest, size_is_eq_to_capacity_when_capacity_reach) {
+    size_t capacity = 1;
+    PIBlockingDequeue<int> dequeue(capacity);
+    dequeue.offer(111);
+    dequeue.offer(111);
+    ASSERT_EQ(dequeue.size(), capacity);
+}
+
+TEST(BlockingDequeueUnitTest, drainTo_is_elements_moved) {
+    size_t capacity = 10;
+    PIDeque<int> refDeque;
+    for (size_t i = 0; i < capacity / 2; ++i) refDeque.push_back(i * 10);
+    PIBlockingDequeue<int> blockingDequeue(refDeque);
+    PIDeque<int> deque;
+    blockingDequeue.drainTo(deque);
+    ASSERT_EQ(blockingDequeue.size(), 0);
+    ASSERT_TRUE(deque == refDeque);
+}
+
+TEST(BlockingDequeueUnitTest, drainTo_is_ret_eq_to_size_when_all_moved) {
+    size_t capacity = 10;
+    PIDeque<int> refDeque;
+    for (size_t i = 0; i < capacity / 2; ++i) refDeque.push_back(i * 10);
+    PIBlockingDequeue<int> blockingDequeue(refDeque);
+    PIDeque<int> deque;
+    ASSERT_EQ(blockingDequeue.drainTo(deque), refDeque.size());
+}
+
+TEST(BlockingDequeueUnitTest, drainTo_is_ret_eq_to_maxCount) {
+    size_t capacity = 10;
+    PIDeque<int> refDeque;
+    for (size_t i = 0; i < capacity / 2; ++i) refDeque.push_back(i * 10);
+    PIBlockingDequeue<int> blockingDequeue(refDeque);
+    PIDeque<int> deque;
+    ASSERT_EQ(blockingDequeue.drainTo(deque, refDeque.size() - 1), refDeque.size() - 1);
+}
diff --git a/src_concurrent/test/CMakeLists.txt b/src_concurrent/test/CMakeLists.txt
new file mode 100644
index 00000000..3a120782
--- /dev/null
+++ b/src_concurrent/test/CMakeLists.txt
@@ -0,0 +1,45 @@
+project(concurrent_test)
+# Download and unpack googletest at configure time
+configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+        RESULT_VARIABLE result
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
+if(result)
+    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+endif()
+execute_process(COMMAND ${CMAKE_COMMAND} --build .
+        RESULT_VARIABLE result
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
+if(result)
+    message(FATAL_ERROR "Build step for googletest failed: ${result}")
+endif()
+
+# Prevent overriding the parent project's compiler/linker
+# settings on Windows
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+# Add googletest directly to our build. This defines
+# the gtest and gtest_main targets.
+add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
+        ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
+        EXCLUDE_FROM_ALL)
+
+# The gtest/gtest_main targets carry header search path
+# dependencies automatically when using CMake 2.8.11 or
+# later. Otherwise we have to add them here ourselves.
+if (CMAKE_VERSION VERSION_LESS 2.8.11)
+    include_directories("${gtest_SOURCE_DIR}/include")
+endif()
+
+file(GLOB_RECURSE CPPS "*.cpp")
+#find_package(GTest REQUIRED)
+#message(STATUS "GTEST_INCLUDES: ${GTEST_INCLUDES}")
+include_directories(${PROJECT_BINARY_DIR})
+
+add_executable(${PROJECT_NAME} ${CPPS})
+target_link_libraries(${PROJECT_NAME} gtest_main gmock_main pip_concurrent)
+add_test(NAME ${PROJECT_NAME}_test COMMAND tests)
+
+ADD_CUSTOM_COMMAND(TARGET ${PROJECT_NAME} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:pip_concurrent> ${CMAKE_CURRENT_BINARY_DIR})
+add_custom_target(${PROJECT_NAME}_perform ALL COMMAND ${PROJECT_NAME})
\ No newline at end of file
diff --git a/src_concurrent/test/CMakeLists.txt.in b/src_concurrent/test/CMakeLists.txt.in
new file mode 100644
index 00000000..25794cc9
--- /dev/null
+++ b/src_concurrent/test/CMakeLists.txt.in
@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+  GIT_REPOSITORY    https://github.com/google/googletest.git
+  GIT_TAG           "dea0216d0c6bc5e63cf5f6c8651cd268668032ec"
+  SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"
+  BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND   ""
+  TEST_COMMAND      ""
+)
\ No newline at end of file
diff --git a/src_concurrent/test/ConditionLockIntegrationTest.cpp b/src_concurrent/test/ConditionLockIntegrationTest.cpp
new file mode 100644
index 00000000..3cbde7e3
--- /dev/null
+++ b/src_concurrent/test/ConditionLockIntegrationTest.cpp
@@ -0,0 +1,65 @@
+//
+// Created by fomenko on 26.09.2019.
+//
+
+#include "gtest/gtest.h"
+#include "gmock/gmock.h"
+
+#include "piconditionvar.h"
+#include <pithread.h>
+#include "testutil.h"
+
+class ConditionLock : public ::testing::Test, public TestUtil {
+protected:
+    void TearDown() override {
+        if (adapter != nullptr) delete adapter;
+    }
+};
+
+TEST_F(ConditionLock, lock_is_protect) {
+    PIConditionLock m;
+    m.lock();
+    bool isProtect = true;
+
+    createThread([&](){
+        m.lock();
+        isProtect = false;
+    });
+    ASSERT_TRUE(isProtect);
+}
+
+TEST_F(ConditionLock, unlock_is_release) {
+    PIConditionLock m;
+    m.lock();
+    volatile bool isReleased = false;
+    m.unlock();
+
+    createThread([&](){
+        m.lock();
+        isReleased = true;
+        m.unlock();
+    });
+    EXPECT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+    ASSERT_TRUE(isReleased);
+}
+
+TEST_F(ConditionLock, tryLock_is_false_when_locked) {
+    PIConditionLock m;
+
+    createThread([&](){
+        m.lock();
+        piMSleep(WAIT_THREAD_TIME_MS);
+    });
+    ASSERT_FALSE(m.tryLock());
+}
+
+TEST_F(ConditionLock, tryLock_is_true_when_unlocked) {
+    PIConditionLock m;
+    ASSERT_TRUE(m.tryLock());
+}
+
+TEST_F(ConditionLock, tryLock_is_recursive_lock_enable) {
+    PIConditionLock m;
+    m.lock();
+    ASSERT_TRUE(m.tryLock());
+}
\ No newline at end of file
diff --git a/src_concurrent/test/ConditionVariableIntegrationTest.cpp b/src_concurrent/test/ConditionVariableIntegrationTest.cpp
new file mode 100644
index 00000000..026a7009
--- /dev/null
+++ b/src_concurrent/test/ConditionVariableIntegrationTest.cpp
@@ -0,0 +1,224 @@
+//
+// Created by fomenko on 24.09.2019.
+//
+
+#include "gtest/gtest.h"
+#include "piconditionvar.h"
+#include "pithread.h"
+#include "testutil.h"
+
+class ConditionVariable : public ::testing::Test, public TestUtil {
+public:
+    PIConditionLock m;
+    PIConditionVariable* variable;
+
+protected:
+    void SetUp() override {
+        isRunning = false;
+        variable = new PIConditionVariable();
+        adapterFunctionDefault = [&](){
+            isRunning = true;
+            m.lock();
+            variable->wait(m);
+            m.unlock();
+        };
+    }
+
+    void TearDown() override {
+        if (adapter != nullptr) delete adapter;
+    }
+};
+
+TEST(ThreadFuncAdapter, registerToInvoke_is_stdFun_invoke) {
+    bool isInvoke = false;
+    StdFunctionThreadFuncAdapter adapter([&](){
+        isInvoke = true;
+    });
+    adapter.threadFunc()(adapter.data());
+    ASSERT_TRUE(isInvoke);
+}
+
+TEST_F(ConditionVariable, wait_is_block) {
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_block_when_notifyOne_before_wait) {
+    variable->notifyOne();
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_block_when_notifyAll_before_wait) {
+    variable->notifyAll();
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_unblock_when_notifyOne_after_wait) {
+    createThread();
+    variable->notifyOne();
+    ASSERT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_unblock_when_notifyAll_after_wait) {
+    PIVector<StdFunctionThreadFuncAdapter*> adapters;
+    PIVector<PIThread*> threads;
+
+    for (int i = 0; i < THREAD_COUNT; ++i) {
+        adapters.push_back(new StdFunctionThreadFuncAdapter(adapterFunctionDefault));
+        threads.push_back(new PIThread(adapters.back()->data(), adapters.back()->threadFunc()));
+    }
+
+    piForeach(PIThread* thread, threads) thread->startOnce();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    variable->notifyAll();
+    PITimeMeasurer measurer;
+    piForeach(PIThread* thread, threads) {
+        int timeout = WAIT_THREAD_TIME_MS * THREAD_COUNT - (int)measurer.elapsed_m();
+        thread->waitForFinish(timeout > 0 ? timeout : 0);
+    }
+    for (size_t i = 0; i < threads.size(); ++i) EXPECT_FALSE(threads[i]->isRunning()) << "Thread " << i << " still running";
+    piForeach(PIThread* thread, threads) delete thread;
+    piForeach(StdFunctionThreadFuncAdapter* adapter, adapters) delete adapter;
+}
+
+TEST_F(ConditionVariable, wait_is_one_unblock_when_notifyOne) {
+    PIVector<StdFunctionThreadFuncAdapter*> adapters;
+    PIVector<PIThread*> threads;
+
+    for (int i = 0; i < THREAD_COUNT; ++i) {
+        adapters.push_back(new StdFunctionThreadFuncAdapter(adapterFunctionDefault));
+        threads.push_back(new PIThread(adapters.back()->data(), adapters.back()->threadFunc()));
+    }
+
+    piForeach(PIThread* thread, threads) thread->startOnce();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    variable->notifyOne();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    int runningThreadCount = 0;
+    piForeach(PIThread* thread, threads) if (thread->isRunning()) runningThreadCount++;
+    ASSERT_EQ(runningThreadCount, THREAD_COUNT - 1);
+}
+
+TEST_F(ConditionVariable, wait_is_protected_unblock_when_notifyOne) {
+    createThread([&](){
+        m.lock();
+        variable->wait(m);
+        piMSleep(2 * WAIT_THREAD_TIME_MS);
+        // Missing unlock
+    });
+    variable->notifyOne();
+    msleep(WAIT_THREAD_TIME_MS);
+    ASSERT_FALSE(m.tryLock());
+}
+
+TEST_F(ConditionVariable, wait_condition_is_block) {
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [](){ return false; });
+        m.unlock();
+    });
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_condition_is_check_condition_before_block) {
+    bool isConditionChecked = false;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){
+            isConditionChecked = true;
+            return false;
+        });
+        m.unlock();
+    });
+    m.lock();
+    ASSERT_TRUE(isConditionChecked);
+    m.unlock();
+}
+
+TEST_F(ConditionVariable, wait_condition_is_check_condition_when_notifyOne) {
+    bool isConditionChecked;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){
+            isConditionChecked = true;
+            return false;
+        });
+        m.unlock();
+    });
+    m.lock();
+    isConditionChecked = false;
+    m.unlock();
+    variable->notifyOne();
+    msleep(threadStartTime + 1);
+    m.lock();
+    ASSERT_TRUE(isConditionChecked);
+    m.unlock();
+}
+
+TEST_F(ConditionVariable, wait_condition_is_unblock_when_condition_and_notifyOne) {
+    bool condition = false;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){ return condition; });
+        m.unlock();
+    });
+    m.lock();
+    condition = true;
+    m.unlock();
+    variable->notifyOne();
+    ASSERT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, DISABLED_waitFor_is_block_before_timeout) {
+    createThread([&](){
+        PITimeMeasurer measurer;
+        m.lock();
+        variable->waitFor(m, WAIT_THREAD_TIME_MS * 2);
+        m.unlock();
+        // Not reliable because spurious wakeup may happen
+        ASSERT_GE(measurer.elapsed_m(), WAIT_THREAD_TIME_MS);
+    });
+    EXPECT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS * 3));
+}
+
+TEST_F(ConditionVariable, waitFor_is_unblock_when_timeout) {
+    volatile bool isUnblock = false;
+    createThread([&](){
+        m.lock();
+        variable->waitFor(m, WAIT_THREAD_TIME_MS);
+        isUnblock = true;
+        m.unlock();
+    });
+    // Test failed if suspend forever
+    EXPECT_TRUE(thread->waitForFinish(2 * WAIT_THREAD_TIME_MS));
+    ASSERT_TRUE(isUnblock);
+}
+
+TEST_F(ConditionVariable, waitFor_is_false_when_timeout) {
+    bool waitRet = true;
+    createThread([&](){
+        m.lock();
+        waitRet = variable->waitFor(m, WAIT_THREAD_TIME_MS);
+        m.unlock();
+    });
+    EXPECT_TRUE(thread->waitForFinish(2 * WAIT_THREAD_TIME_MS));
+    ASSERT_FALSE(waitRet);
+}
+
+TEST_F(ConditionVariable, waitFor_is_unblock_when_condition_and_notifyOne) {
+    bool condition = false;
+    createThread([&](){
+        m.lock();
+        variable->waitFor(m, 3 * WAIT_THREAD_TIME_MS, [&](){ return condition; });
+        m.unlock();
+    });
+    EXPECT_TRUE(thread->isRunning());
+    m.lock();
+    condition = true;
+    m.unlock();
+    variable->notifyOne();
+    msleep(WAIT_THREAD_TIME_MS);
+    ASSERT_FALSE(thread->isRunning());
+}
\ No newline at end of file
diff --git a/src_concurrent/test/ExecutorIntegrationTest.cpp b/src_concurrent/test/ExecutorIntegrationTest.cpp
new file mode 100644
index 00000000..843a5fe9
--- /dev/null
+++ b/src_concurrent/test/ExecutorIntegrationTest.cpp
@@ -0,0 +1,33 @@
+//
+// Created by fomenko on 24.09.2019.
+//
+
+#include "gtest/gtest.h"
+#include "executor.h"
+#include "pimutex.h"
+
+const int WAIT_THREAD_TIME_MS = 30;
+
+TEST(ExcutorIntegrationTest, execute_is_runnable_invoke) {
+    PIMutex m;
+    int invokedRunnables = 0;
+    PIThreadPoolExecutor executorService(1);
+    executorService.execute([&]() {
+        m.lock();
+        invokedRunnables++;
+        m.unlock();
+    });
+    piMSleep(WAIT_THREAD_TIME_MS);
+    ASSERT_EQ(invokedRunnables, 1);
+}
+
+TEST(ExcutorIntegrationTest, execute_is_not_execute_after_shutdown) {
+    bool isRunnableInvoke = false;
+    PIThreadPoolExecutor executorService(1);
+    executorService.shutdown();
+    executorService.execute([&]() {
+        isRunnableInvoke = true;
+    });
+    piMSleep(WAIT_THREAD_TIME_MS);
+    ASSERT_FALSE(isRunnableInvoke);
+}
diff --git a/src_concurrent/test/ExecutorUnitTest.cpp b/src_concurrent/test/ExecutorUnitTest.cpp
new file mode 100644
index 00000000..63e6fc4b
--- /dev/null
+++ b/src_concurrent/test/ExecutorUnitTest.cpp
@@ -0,0 +1,127 @@
+//
+// Created by fomenko on 23.09.2019.
+//
+
+#include "executor.h"
+#include "gtest/gtest.h"
+#include "gmock/gmock.h"
+
+using ::testing::_;
+using ::testing::SetArgReferee;
+using ::testing::DoAll;
+using ::testing::DeleteArg;
+using ::testing::Return;
+using ::testing::AtLeast;
+using ::testing::ByRef;
+using ::testing::Eq;
+
+typedef std::function<void()> VoidFunc;
+
+namespace std {
+    inline bool operator ==(const VoidFunc& s, const VoidFunc& v) {
+        // TODO VoidFunc operator ==
+        return true;
+    }
+}
+
+const int THREAD_COUNT = 2;
+
+class MockThread : public AbstractThread {
+public:
+    MOCK_METHOD0(start, bool());
+    MOCK_METHOD0(stop, void());
+    MOCK_METHOD1(waitForStart, bool(int timeout_msecs));
+    MOCK_METHOD1(waitForFinish, bool(int timeout_msecs));
+};
+
+class MockDeque : public PIBlockingDequeue<VoidFunc> {
+public:
+    MOCK_METHOD1(offer, bool(const VoidFunc&));
+    MOCK_METHOD0(take, VoidFunc());
+    MOCK_METHOD2(poll, VoidFunc(int timeoutMs, const VoidFunc& defaultVal));
+    MOCK_METHOD0(capacity, size_t());
+    MOCK_METHOD0(remainingCapacity, size_t());
+};
+
+class MockThreadFactory : public PIThreadFactory {
+public:
+    int callCount = 0;
+    PIVector<MockThread*> threads;
+    std::function<void(MockThread*)> checkThreadExpectations = [](MockThread* thread){
+        EXPECT_CALL(*thread, start())
+            .WillOnce(Return(true));
+        EXPECT_CALL(*thread, stop())
+                .WillOnce(Return());
+    };
+
+    std::function<void(const VoidFunc& fun)> checkThreadFunc = [](const VoidFunc& fun) { };
+
+    AbstractThread* newThread(const VoidFunc& fun) override {
+        callCount++;
+        auto* thread = new MockThread();
+        threads.push_back(thread);
+        checkThreadExpectations(thread);
+        checkThreadFunc(fun);
+        return threads.back();
+    }
+
+};
+
+TEST(ExecutorUnitTest, is_corePool_created) {
+    auto* deque = new MockDeque();
+    auto* threadFactory = new MockThreadFactory();
+    PIThreadPoolExecutor executor(THREAD_COUNT, deque, threadFactory);
+    ASSERT_EQ(THREAD_COUNT, threadFactory->callCount);
+}
+
+TEST(ExecutorUnitTest, is_corePool_started) {
+    auto* deque = new MockDeque();
+    auto* threadFactory = new MockThreadFactory();
+    PIThreadPoolExecutor executor(THREAD_COUNT, deque, threadFactory);
+}
+
+TEST(ExecutorUnitTest, execute_is_added_to_taskQueue) {
+    VoidFunc voidFunc = [](){};
+    auto* deque = new MockDeque();
+    EXPECT_CALL(*deque, offer(Eq(voidFunc)))
+        .WillOnce(Return(true));
+
+    auto* threadFactory = new MockThreadFactory();
+    PIThreadPoolExecutor executor(THREAD_COUNT, deque, threadFactory);
+    executor.execute([]() {});
+}
+
+TEST(ExecutorUnitTest, is_corePool_execute_queue_elements) {
+    auto* deque = new MockDeque();
+    auto* threadFactory = new MockThreadFactory();
+    threadFactory->checkThreadFunc = [](const VoidFunc& fun) {
+        fun();
+    };
+    ON_CALL(*deque, take())
+        .WillByDefault(Return([](){}));
+    EXPECT_CALL(*deque, poll(_, _))
+        .Times(THREAD_COUNT)
+        .WillRepeatedly(Return([](){}));
+    PIThreadPoolExecutor executor(THREAD_COUNT, deque, threadFactory);
+}
+
+TEST(ExecutorUnitTest, shutdown_is_stop_threads) {
+    auto* deque = new MockDeque();
+    auto* threadFactory = new MockThreadFactory();
+    PIVector<VoidFunc> threadFuncs;
+    threadFactory->checkThreadExpectations = [](MockThread* thread) {
+        EXPECT_CALL(*thread, start())
+            .WillOnce(Return(true));
+        EXPECT_CALL(*thread, stop())
+            .WillRepeatedly(Return());
+    };
+    threadFactory->checkThreadFunc = [&](const VoidFunc& threadFunc) { threadFuncs.push_back(threadFunc); };
+    ON_CALL(*deque, take())
+            .WillByDefault(Return(VoidFunc()));
+    EXPECT_CALL(*deque, poll(_, _))
+            .Times(THREAD_COUNT)
+            .WillRepeatedly(Return(VoidFunc()));
+    PIThreadPoolExecutor executor(THREAD_COUNT, deque, threadFactory);
+    executor.shutdown();
+    piForeachC(VoidFunc& threadFunc, threadFuncs) threadFunc();
+}
\ No newline at end of file
diff --git a/src_concurrent/test/testutil.h b/src_concurrent/test/testutil.h
new file mode 100644
index 00000000..8be14302
--- /dev/null
+++ b/src_concurrent/test/testutil.h
@@ -0,0 +1,60 @@
+//
+// Created by fomenko on 27.09.2019.
+//
+
+#ifndef AWRCANFLASHER_TESTUTIL_H
+#define AWRCANFLASHER_TESTUTIL_H
+
+#include "pithread.h"
+
+/**
+ * Minimum wait thread start, switch context or another interthread communication action time. Increase it if tests
+ * write "Start thread timeout reach!" message. You can reduce it if you want increase test performance.
+ */
+const int WAIT_THREAD_TIME_MS = 40;
+
+const int THREAD_COUNT = 5;
+
+class TestUtil: public PIObject {
+PIOBJECT(TestUtil)
+public:
+    double threadStartTime;
+    PIThread* thread = new PIThread();
+    StdFunctionThreadFuncAdapter* adapter = nullptr;
+    volatile bool isRunning;
+    std::function<void()> adapterFunctionDefault;
+
+    bool createThread(const std::function<void()>&  fun = nullptr, PIThread* thread_ = nullptr) {
+        adapter = new StdFunctionThreadFuncAdapter(fun == nullptr ? adapterFunctionDefault : fun);
+        if (thread_ == nullptr) thread_ = thread;
+        adapter->registerToInvoke(thread_);
+        thread_->startOnce();
+        return waitThread(thread_);
+    }
+
+    bool waitThread(PIThread* thread_, bool runningStatus = true) {
+        PITimeMeasurer measurer;
+        bool isTimeout = !thread_->waitForStart(WAIT_THREAD_TIME_MS);
+        while (!isRunning) {
+            isTimeout = WAIT_THREAD_TIME_MS <= measurer.elapsed_m();
+            if (isTimeout) break;
+            piMSleep(1);
+        }
+
+        threadStartTime = measurer.elapsed_m();
+
+        if (isTimeout) piCout << "Start thread timeout reach!";
+
+        if (threadStartTime > 1) {
+            piCout << "Start time" << threadStartTime << "ms";
+        } else if (threadStartTime > 0.001) {
+            piCout << "Start time" << threadStartTime * 1000 << "mcs";
+        } else {
+            piCout << "Start time" << threadStartTime * 1000 * 1000 << "ns";
+        }
+
+        return !isTimeout;
+    }
+};
+
+#endif //AWRCANFLASHER_TESTUTIL_H
diff --git a/src_main/concurrent/executor.h b/src_main/concurrent/executor.h
new file mode 100644
index 00000000..71742144
--- /dev/null
+++ b/src_main/concurrent/executor.h
@@ -0,0 +1,89 @@
+//
+// Created by fomenko on 20.09.2019.
+//
+
+#ifndef PIP_TESTS_EXECUTOR_H
+#define PIP_TESTS_EXECUTOR_H
+
+#include <pithread.h>
+#include <functional>
+#include <utility>
+#include "piblockingdequeue.h"
+
+class AbstractThread {
+public:
+    virtual bool start() = 0;
+    virtual bool waitForStart(int timeout_msecs) = 0;
+    virtual bool waitForFinish(int timeout_msecs) = 0;
+    virtual void stop() = 0;
+    virtual ~AbstractThread() = default;
+};
+
+class Thread : public AbstractThread {
+public:
+    explicit Thread(const std::function<void()>& fun = [](){}) : adapter(fun) {
+        adapter.registerToInvoke(&thread);
+    }
+    virtual ~Thread() = default;
+
+    inline bool start() override { return thread.start(); }
+    inline bool waitForStart(int timeout_msecs) override { return thread.waitForStart(timeout_msecs); }
+    inline bool waitForFinish(int timeout_msecs) override { return thread.waitForFinish(timeout_msecs); }
+    inline void stop() override { thread.stop(); }
+
+private:
+    PIThread thread;
+    StdFunctionThreadFuncAdapter adapter;
+};
+
+class PIThreadFactory {
+public:
+    inline virtual AbstractThread* newThread(const std::function<void()>& fun) {
+        return new Thread(fun);
+    }
+    virtual ~PIThreadFactory() = default;
+};
+
+
+/**
+ * @brief Thread pools address two different problems: they usually provide improved performance when executing large
+ * numbers of asynchronous tasks, due to reduced per-task invocation overhead, and they provide a means of bounding and
+ * managing the resources, including threads, consumed when executing a collection of tasks.
+ */
+class PIThreadPoolExecutor {
+public:
+    explicit PIThreadPoolExecutor(size_t corePoolSize = 1, PIBlockingDequeue<std::function<void()> >* taskQueue_ = new PIBlockingDequeue<std::function<void()> >(), PIThreadFactory* threadFactory = new PIThreadFactory());
+
+    virtual ~PIThreadPoolExecutor();
+
+    /**
+     * @brief Executes the given task sometime in the future. The task execute in an existing pooled thread. If the task
+     * cannot be submitted for execution, either because this executor has been shutdown or because its capacity has been
+     * reached.
+     *
+     * @param runnable not empty function for thread pool execution
+     */
+    void execute(const std::function<void()>& runnable);
+
+    void shutdownNow();
+
+    /**
+     * @brief Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be
+     * accepted. Invocation has no additional effect if already shut down. This method does not wait for previously
+     * submitted tasks to complete execution. Use awaitTermination to do that.
+     */
+    void shutdown() {
+        isShutdown_ = true;
+    }
+
+    volatile bool isShutdown() const;
+
+    bool awaitTermination(int timeoutMs);
+private:
+    volatile bool isShutdown_;
+    PIBlockingDequeue<std::function<void()> >* taskQueue;
+    PIThreadFactory* threadFactory;
+    PIVector<AbstractThread*> threadPool;
+};
+
+#endif //PIP_TESTS_EXECUTOR_H
diff --git a/src_main/concurrent/piblockingdequeue.h b/src_main/concurrent/piblockingdequeue.h
new file mode 100644
index 00000000..c1b50a35
--- /dev/null
+++ b/src_main/concurrent/piblockingdequeue.h
@@ -0,0 +1,148 @@
+//
+// Created by fomenko on 20.09.2019.
+//
+
+#ifndef PIP_TESTS_PIBLOCKINGDEQUEUE_H
+#define PIP_TESTS_PIBLOCKINGDEQUEUE_H
+
+#include "pideque.h"
+#include "piconditionvar.h"
+
+/**
+ * @brief A Queue that supports operations that wait for the queue to become non-empty when retrieving an element, and
+ * wait for space to become available in the queue when storing an element.
+ */
+template <typename T>
+class PIBlockingDequeue: private PIDeque<T> {
+public:
+    explicit inline PIBlockingDequeue(size_t capacity = SIZE_MAX, PIConditionVariable* cond_var = new PIConditionVariable()) : condition_var(cond_var), max_size(capacity) { }
+    explicit inline PIBlockingDequeue(const PIDeque<T>& other) : condition_var(new PIConditionVariable()) {
+        max_size = SIZE_MAX;
+        PIDeque<T>::append(other);
+    }
+    inline PIBlockingDequeue(PIBlockingDequeue<T> & other) : condition_var(new PIConditionVariable()) {
+        other.mutex.lock();
+        max_size = other.max_size;
+        PIDeque<T>::append(static_cast<PIDeque<T>&>(other));
+        other.mutex.unlock();
+    }
+    virtual ~PIBlockingDequeue() {
+        delete condition_var;
+    }
+
+    /**
+     * @brief Inserts the specified element at the end of this queue if it is possible to do so immediately without
+     * exceeding the queue's capacity, returning true upon success and false if this queue is full.
+     *
+     * @param v the element to add
+     * @return true if the element was added to this queue, else false
+     */
+    virtual bool offer(const T & v) {
+        mutex.lock();
+        if (PIDeque<T>::size() >= max_size) {
+            mutex.unlock();
+            return false;
+        }
+        PIDeque<T>::push_back(v);
+        mutex.unlock();
+        condition_var->notifyOne();
+        return true;
+    }
+
+    /**
+     * @brief Retrieves and removes the head of this queue, waiting if necessary until an element becomes available.
+     *
+     * @return the head of this queue
+     */
+    virtual T take() {
+        T t;
+        mutex.lock();
+        condition_var->wait(mutex, [&]() { return !PIDeque<T>::isEmpty(); });
+        t = T(PIDeque<T>::take_front());
+        mutex.unlock();
+        return t;
+    }
+
+    /**
+     * @brief Retrieves and removes the head of this queue, waiting up to the specified wait time if necessary for an
+     * element to become available.
+     *
+     * @param timeoutMs how long to wait before giving up, in milliseconds
+     * @param defaultVal value, which returns if the specified waiting time elapses before an element is available
+     * @return the head of this queue, or defaultVal if the specified waiting time elapses before an element is available
+     */
+    virtual T poll(int timeoutMs, const T & defaultVal) {
+        T t;
+        mutex.lock();
+        bool isOk = condition_var->waitFor(mutex, timeoutMs, [&]() { return !PIDeque<T>::isEmpty(); });
+        t = isOk ? T(PIDeque<T>::take_front()) : defaultVal;
+        mutex.unlock();
+        return t;
+    }
+
+    virtual size_t capacity() {
+        size_t c;
+        mutex.lock();
+        c = max_size;
+        mutex.unlock();
+        return c;
+    }
+
+    /**
+     * @brief Returns the number of additional elements that this queue can ideally (in the absence of memory or resource
+     * constraints) accept. This is always equal to the initial capacity of this queue less the current size of this queue.
+     *
+     * @return the remaining capacity
+     */
+    virtual size_t remainingCapacity() {
+        mutex.lock();
+        size_t c = max_size - PIDeque<T>::size();
+        mutex.unlock();
+        return c;
+    }
+
+    virtual size_t size() {
+        mutex.lock();
+        size_t s = PIDeque<T>::size();
+        mutex.unlock();
+        return s;
+    }
+
+    /**
+     * @brief Removes all available elements from this queue and adds them to other given queue.
+     */
+    virtual size_t drainTo(PIDeque<T>& other, size_t maxCount = SIZE_MAX) {
+        mutex.lock();
+        size_t count = maxCount > PIDeque<T>::size() ? PIDeque<T>::size() : maxCount;
+        for (size_t i = 0; i < count; ++i) other.push_back(PIDeque<T>::take_front());
+        mutex.unlock();
+        return count;
+    }
+
+    /**
+     * @brief Removes all available elements from this queue and adds them to other given queue.
+     */
+    virtual size_t drainTo(PIBlockingDequeue<T>& other, size_t maxCount = SIZE_MAX) {
+        mutex.lock();
+        other.mutex.lock();
+        size_t count = maxCount > PIDeque<T>::size() ? PIDeque<T>::size() : maxCount;
+        size_t otherRemainingCapacity = other.max_size - static_cast<PIDeque<T>>(other).size();
+        if (count > otherRemainingCapacity) count = otherRemainingCapacity;
+        for (size_t i = 0; i < count; ++i) other.push_back(PIDeque<T>::take_front());
+        other.mutex.unlock();
+        mutex.unlock();
+        return count;
+    }
+
+    PIConditionVariable *getConditionVar() const {
+        return condition_var;
+    }
+
+private:
+    PIConditionLock mutex;
+    PIConditionVariable* condition_var;
+    size_t max_size;
+};
+
+
+#endif //PIP_TESTS_PIBLOCKINGDEQUEUE_H
diff --git a/src_main/concurrent/piconditionlock.h b/src_main/concurrent/piconditionlock.h
new file mode 100644
index 00000000..722885d7
--- /dev/null
+++ b/src_main/concurrent/piconditionlock.h
@@ -0,0 +1,26 @@
+//
+// Created by fomenko on 25.09.2019.
+//
+
+#ifndef AWRCANFLASHER_PICONDITIONLOCK_H
+#define AWRCANFLASHER_PICONDITIONLOCK_H
+
+#include <pimutex.h>
+#include <piinit.h>
+
+class PIP_EXPORT PIConditionLock {
+public:
+    explicit PIConditionLock();
+    ~PIConditionLock();
+
+    void lock();
+    void unlock();
+    bool tryLock();
+    void* handle();
+private:
+    NO_COPY_CLASS(PIConditionLock)
+    PRIVATE_DECLARATION
+};
+
+
+#endif //AWRCANFLASHER_PICONDITIONLOCK_H
diff --git a/src_main/concurrent/piconditionvar.h b/src_main/concurrent/piconditionvar.h
new file mode 100644
index 00000000..b87aacc0
--- /dev/null
+++ b/src_main/concurrent/piconditionvar.h
@@ -0,0 +1,48 @@
+//
+// Created by fomenko on 20.09.2019.
+//
+
+#ifndef PIP_TESTS_PICONDITIONVAR_H
+#define PIP_TESTS_PICONDITIONVAR_H
+
+#include "piconditionlock.h"
+#include <functional>
+#include "piinit.h"
+
+#define PICONDITION_RELIABLE true
+
+class PIP_EXPORT PIConditionVariable {
+public:
+    explicit PIConditionVariable();
+    virtual ~PIConditionVariable();
+
+    virtual void notifyOne();
+    virtual void notifyAll();
+    virtual void wait(PIConditionLock& lk);
+    virtual void wait(PIConditionLock& lk, const std::function<bool()>& condition);
+    virtual bool waitFor(PIConditionLock& lk, int timeoutMs);
+    virtual bool waitFor(PIConditionLock& lk, int timeoutMs, const std::function<bool()>& condition);
+private:
+    NO_COPY_CLASS(PIConditionVariable)
+
+    PRIVATE_DECLARATION
+};
+
+
+class PIThread;
+typedef void (*ThreadFunc)(void * );
+
+class StdFunctionThreadFuncAdapter {
+public:
+    static void threadFuncStdFunctionAdapter(void* it);
+
+    explicit StdFunctionThreadFuncAdapter(const std::function<void()>&  fun_): fun(fun_) {}
+
+    void registerToInvoke(PIThread* thread);
+    void* data() const { return (void*)this; }
+    ThreadFunc threadFunc() const { return threadFuncStdFunctionAdapter; }
+private:
+    std::function<void()> fun;
+};
+
+#endif //PIP_TESTS_PICONDITIONVAR_H