private static void TestMarshalStructAPIs()
{
Console.WriteLine("Testing Marshal APIs for structs");
NonBlittableStruct ts = new NonBlittableStruct()
{
f1 = 100, f2 = true, f3 = false, f4 = true
};
int size = Marshal.SizeOf <NonBlittableStruct>(ts);
ThrowIfNotEquals(16, size, "Marshal.SizeOf<NonBlittableStruct> failed");
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr <NonBlittableStruct>(ts, memory, false);
NonBlittableStruct ts2 = Marshal.PtrToStructure <NonBlittableStruct>(memory);
ThrowIfNotEquals(true, ts2.f1 == 100 && ts2.f2 == true && ts2.f3 == false && ts2.f4 == true, "NonBlittableStruct marshalling Marshal API failed");
IntPtr offset = Marshal.OffsetOf <NonBlittableStruct>("f2");
ThrowIfNotEquals(new IntPtr(4), offset, "Struct marshalling OffsetOf failed.");
}
finally
{
Marshal.FreeHGlobal(memory);
}
BlittableClass bc = new BlittableClass()
{
f1 = 100, f2 = 12345678, f3 = 999, f4 = -4
};
int bc_size = Marshal.SizeOf <BlittableClass>(bc);
ThrowIfNotEquals(24, bc_size, "Marshal.SizeOf<BlittableClass> failed");
IntPtr bc_memory = Marshal.AllocHGlobal(bc_size);
try
{
Marshal.StructureToPtr <BlittableClass>(bc, bc_memory, false);
BlittableClass bc2 = Marshal.PtrToStructure <BlittableClass>(bc_memory);
ThrowIfNotEquals(true, bc2.f1 == 100 && bc2.f2 == 12345678 && bc2.f3 == 999 && bc2.f4 == -4, "BlittableClass marshalling Marshal API failed");
}
finally
{
Marshal.FreeHGlobal(bc_memory);
}
NonBlittableClass nbc = new NonBlittableClass()
{
f1 = false, f2 = true, f3 = 42
};
int nbc_size = Marshal.SizeOf <NonBlittableClass>(nbc);
ThrowIfNotEquals(12, nbc_size, "Marshal.SizeOf<NonBlittableClass> failed");
IntPtr nbc_memory = Marshal.AllocHGlobal(nbc_size);
try
{
Marshal.StructureToPtr <NonBlittableClass>(nbc, nbc_memory, false);
NonBlittableClass nbc2 = Marshal.PtrToStructure <NonBlittableClass>(nbc_memory);
ThrowIfNotEquals(true, nbc2.f1 == false && nbc2.f2 == true && nbc2.f3 == 42, "NonBlittableClass marshalling Marshal API failed");
}
finally
{
Marshal.FreeHGlobal(nbc_memory);
}
}
private static void TestMarshalStructAPIs()
{
Console.WriteLine("Testing Marshal APIs for structs");
BlittableStruct bs = new BlittableStruct()
{
FirstField = 1.0f, SecondField = 2.0f, ThirdField = 3
};
int bs_size = Marshal.SizeOf <BlittableStruct>(bs);
ThrowIfNotEquals(40, bs_size, "Marshal.SizeOf<BlittableStruct> failed");
IntPtr bs_memory = Marshal.AllocHGlobal(bs_size);
try
{
Marshal.StructureToPtr <BlittableStruct>(bs, bs_memory, false);
BlittableStruct bs2 = Marshal.PtrToStructure <BlittableStruct>(bs_memory);
ThrowIfNotEquals(true, bs2.FirstField == 1.0f && bs2.SecondField == 2.0f && bs2.ThirdField == 3, "BlittableStruct marshalling Marshal API failed");
IntPtr offset = Marshal.OffsetOf <BlittableStruct>("SecondField");
ThrowIfNotEquals(new IntPtr(12), offset, "Struct marshalling OffsetOf failed.");
}
finally
{
Marshal.FreeHGlobal(bs_memory);
}
NonBlittableStruct ts = new NonBlittableStruct()
{
f1 = 100, f2 = true, f3 = false, f4 = true
};
int size = Marshal.SizeOf <NonBlittableStruct>(ts);
ThrowIfNotEquals(16, size, "Marshal.SizeOf<NonBlittableStruct> failed");
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr <NonBlittableStruct>(ts, memory, false);
NonBlittableStruct ts2 = Marshal.PtrToStructure <NonBlittableStruct>(memory);
ThrowIfNotEquals(true, ts2.f1 == 100 && ts2.f2 == true && ts2.f3 == false && ts2.f4 == true, "NonBlittableStruct marshalling Marshal API failed");
IntPtr offset = Marshal.OffsetOf <NonBlittableStruct>("f2");
ThrowIfNotEquals(new IntPtr(4), offset, "Struct marshalling OffsetOf failed.");
}
finally
{
Marshal.FreeHGlobal(memory);
}
BlittableClass bc = new BlittableClass()
{
f1 = 100, f2 = 12345678, f3 = 999, f4 = -4
};
int bc_size = Marshal.SizeOf <BlittableClass>(bc);
ThrowIfNotEquals(24, bc_size, "Marshal.SizeOf<BlittableClass> failed");
IntPtr bc_memory = Marshal.AllocHGlobal(bc_size);
try
{
Marshal.StructureToPtr <BlittableClass>(bc, bc_memory, false);
BlittableClass bc2 = Marshal.PtrToStructure <BlittableClass>(bc_memory);
ThrowIfNotEquals(true, bc2.f1 == 100 && bc2.f2 == 12345678 && bc2.f3 == 999 && bc2.f4 == -4, "BlittableClass marshalling Marshal API failed");
}
finally
{
Marshal.FreeHGlobal(bc_memory);
}
NonBlittableClass nbc = new NonBlittableClass()
{
f1 = false, f2 = true, f3 = 42
};
int nbc_size = Marshal.SizeOf <NonBlittableClass>(nbc);
ThrowIfNotEquals(12, nbc_size, "Marshal.SizeOf<NonBlittableClass> failed");
IntPtr nbc_memory = Marshal.AllocHGlobal(nbc_size);
try
{
Marshal.StructureToPtr <NonBlittableClass>(nbc, nbc_memory, false);
NonBlittableClass nbc2 = Marshal.PtrToStructure <NonBlittableClass>(nbc_memory);
ThrowIfNotEquals(true, nbc2.f1 == false && nbc2.f2 == true && nbc2.f3 == 42, "NonBlittableClass marshalling Marshal API failed");
}
finally
{
Marshal.FreeHGlobal(nbc_memory);
}
int cftf_size = Marshal.SizeOf(typeof(ClassForTestingFlowAnalysis));
ThrowIfNotEquals(4, cftf_size, "ClassForTestingFlowAnalysis marshalling Marshal API failed");
}