shm/testshmexe/test_vptr.cpp

#include "catch.hpp"
#include "vptr_manager.h"
#include "shm.h"

class TestBase3
{
public:
    virtual int Do1()
    {
        return a;
    }
    virtual ~TestBase3() = default;
    int a = 2;
};

class TestBase4 : virtual public  TestBase3
{
public:
    virtual int Do1() override
    {
        return 4;
    }
};

class TestDrvied1 :virtual public  TestBase3, public TestBase4
{
public:
    virtual ~TestDrvied1() = default;
};

class TestBase
{
public:
    virtual int Do1()
    {
        return a;
    }
    virtual ~TestBase() = default;
    int a = 2;
};

class TestBase2
{
public:
    virtual  int Do1()
    {
        return b;
    }
    virtual ~TestBase2() = default;
    int b = 3;
};

class TestDrvied :public TestBase, public TestBase2
{
public:
    virtual ~TestDrvied() = default;
};

TEST_CASE("VptrObjectContainer<TestDrvied>, ShmNew Fix ShmDelete", "[TestDrvied][base]")
{
    bg::ShmOptions opts(false, "Test", nullptr);
    opts.fix_vptr_on_init = false;

    REQUIRE(bg::ShmInit(opts) == true);

    TestDrvied* drv = bg::ShmNew<TestDrvied>();

    uintptr_t drv_ptr = *reinterpret_cast<uintptr_t*>(drv);
    memset(drv, 0, sizeof(TestDrvied));
    TestBase* base = static_cast<TestBase*>(drv);
    base->a = 2;
    TestBase2* base2 = static_cast<TestBase2*>(drv);
    base2->b = 3;
    REQUIRE(*reinterpret_cast<uintptr_t*>(base) == 0);

     *(uint64_t*)(0x600000006080) = 2;

    bg::ShmFixVptr();

    REQUIRE(*reinterpret_cast<uintptr_t*>(base) == drv_ptr);
    REQUIRE(*reinterpret_cast<uintptr_t*>(base2) != 0);
    REQUIRE(base->Do1() == 2);

    REQUIRE(base2->Do1() == 3);
    bg::ShmDelete(base);
    bg::ShmFini();

}


TEST_CASE("VptrObjectContainer<TestDrvied1>, ShmNew Fix ShmDelete")
{
    bg::ShmOptions opts(false, "Test", nullptr);
    opts.fix_vptr_on_init = false;

    REQUIRE(bg::ShmInit(opts) == true);

    TestDrvied1* drv = bg::ShmNew<TestDrvied1>();
    uintptr_t drv_ptr = *reinterpret_cast<uintptr_t*>(drv);
    TestBase4* base2 = static_cast<TestBase4*>(drv);
    TestBase3* base = static_cast<TestBase3*>(drv);
     REQUIRE(base->Do1() == 4);
    memset(drv, 0, sizeof(TestDrvied));

    base->a = 2;
 
    REQUIRE(*reinterpret_cast<uintptr_t*>(base) == 0);

     *(uint64_t*)(0x600000006080) = 2;


    bg::ShmFixVptr();

    REQUIRE(*reinterpret_cast<uintptr_t*>(base2) == drv_ptr);

    REQUIRE(base->Do1() == 4);

    REQUIRE(base2->Do1() == 4);
    bg::ShmDelete(base);
    bg::ShmFini();

}
class TestDrvied3
{
public:
    virtual ~TestDrvied3() = default;
};

TEST_CASE("VptrObjectContainer<TestDrvied3>, ShmNew Fix ShmDelete")
{
    bg::ShmOptions opts(false, "Test", nullptr);
    opts.fix_vptr_on_init = false;

    REQUIRE(bg::ShmInit(opts) == true);


    TestDrvied3* drv = bg::ShmNew<TestDrvied3>();
    uintptr_t drv_ptr = *reinterpret_cast<uintptr_t*>(drv);
    memset(drv, 0, sizeof(TestDrvied3));

    REQUIRE(*reinterpret_cast<uintptr_t*>(drv) == 0);

     *(uint64_t*)(0x600000006080) = 2;


    bg::ShmFixVptr();

    REQUIRE(*reinterpret_cast<uintptr_t*>(drv) == drv_ptr);

    bg::ShmDelete(drv);
    bg::ShmFini();

}