util/system/tls_ut.cpp


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#include "tls.h" 
#include "thread.h" 
 
#include <library/cpp/testing/unittest/registar.h>
 
Y_UNIT_TEST_SUITE(TTestTLS) {
    struct X { 
        inline X() 
            : V(0) 
        { 
        } 
 
        inline void Do() { 
            ++TlsRef(V); 
        } 
 
        inline int Get() { 
            return TlsRef(V); 
        } 
 
        Y_THREAD(int) 
        V; 
    }; 
 
    Y_UNIT_TEST(TestHugeSetup) {
        TArrayHolder<X> x(new X[100000]); 
 
        struct TThr: public ISimpleThread {
            inline TThr(X* ptr) 
                : P(ptr) 
            { 
            } 
 
            void* ThreadProc() noexcept override {
                for (size_t i = 0; i < 100000; ++i) { 
                    P[i].Do(); 
                } 
 
                return nullptr; 
            } 
 
            X* P; 
        }; 
 
        TThr thr1(x.Get()); 
        TThr thr2(x.Get()); 
 
        thr1.Start(); 
        thr2.Start(); 
 
        thr1.Join(); 
        thr2.Join(); 
 
        for (size_t i = 0; i < 100000; ++i) { 
            UNIT_ASSERT_VALUES_EQUAL(x.Get()[i].Get(), 0); 
        } 
    } 
}