public static void RunTest()
{
var testHandle = new TestSafeHandle(initialValue);
Assert.True(SafeHandleNative.SafeHandleByValue(testHandle, initialValue));
Assert.False(testHandle.IsClosed);
Assert.True(SafeHandleNative.SafeHandleByRef(ref testHandle, initialValue, newValue));
Assert.False(testHandle.IsClosed);
testHandle = null;
SafeHandleNative.SafeHandleOut(out testHandle, initialValue);
Assert.False(testHandle.IsClosed);
testHandle = SafeHandleNative.SafeHandleReturn(newValue);
Assert.False(testHandle.IsClosed);
testHandle = SafeHandleNative.SafeHandleReturn_Swapped(newValue);
Assert.False(testHandle.IsClosed);
var str = new SafeHandleNative.StructWithHandle
{
handle = new TestSafeHandle(initialValue)
};
SafeHandleNative.StructWithSafeHandleByValue(str, initialValue);
Assert.False(str.handle.IsClosed);
SafeHandleNative.StructWithSafeHandleByRef(ref str, initialValue, initialValue);
Assert.False(str.handle.IsClosed);
}
public static void RunTest()
{
// Test that our SafeHandle-derived object has its underlying handle set after a P/Invoke
// even if there's an exception during the unmarshal phase.
IntPtr value = (IntPtr)123;
TestSafeHandle h = new TestSafeHandle();
Assert.Throws <InvalidOperationException>(() => SafeHandleNative.GetHandleAndCookie(value, out h, out var cookie));
Assert.AreEqual(value, h.DangerousGetHandle());
}
public static void RunTest()
{
var testHandle = new TestSafeHandle(initialValue);
Assert.True(SafeHandleNative.SafeHandleByValue(testHandle, initialValue));
Assert.True(SafeHandleNative.SafeHandleByRef(ref testHandle, initialValue, newValue));
Assert.Equal(newValue, testHandle.DangerousGetHandle());
AbstractDerivedSafeHandle abstrHandle = new AbstractDerivedSafeHandleImplementation(initialValue);
Assert.True(SafeHandleNative.SafeHandleInByRef(abstrHandle, initialValue));
Assert.Throws <MarshalDirectiveException>(() => SafeHandleNative.SafeHandleByRef(ref abstrHandle, initialValue, newValue));
NoDefaultConstructorSafeHandle noDefaultCtorHandle = new NoDefaultConstructorSafeHandle(initialValue);
Assert.Throws <MissingMethodException>(() => SafeHandleNative.SafeHandleByRef(ref noDefaultCtorHandle, initialValue, newValue));
testHandle = null;
SafeHandleNative.SafeHandleOut(out testHandle, initialValue);
Assert.Equal(initialValue, testHandle.DangerousGetHandle());
testHandle = SafeHandleNative.SafeHandleReturn(newValue);
Assert.Equal(newValue, testHandle.DangerousGetHandle());
Assert.Throws <MarshalDirectiveException>(() => SafeHandleNative.SafeHandleReturn_AbstractDerived(initialValue));
Assert.Throws <MissingMethodException>(() => SafeHandleNative.SafeHandleReturn_NoDefaultConstructor(initialValue));
var abstractDerivedImplementationHandle = SafeHandleNative.SafeHandleReturn_AbstractDerivedImplementation(initialValue);
Assert.Equal(initialValue, abstractDerivedImplementationHandle.DangerousGetHandle());
testHandle = SafeHandleNative.SafeHandleReturn_Swapped(newValue);
Assert.Equal(newValue, testHandle.DangerousGetHandle());
Assert.Throws <MarshalDirectiveException>(() => SafeHandleNative.SafeHandleReturn_Swapped_AbstractDerived(initialValue));
Assert.Throws <MissingMethodException>(() => SafeHandleNative.SafeHandleReturn_Swapped_NoDefaultConstructor(initialValue));
var str = new SafeHandleNative.StructWithHandle
{
handle = new TestSafeHandle(initialValue)
};
Assert.True(SafeHandleNative.StructWithSafeHandleByValue(str, initialValue));
Assert.True(SafeHandleNative.StructWithSafeHandleByRef(ref str, initialValue, initialValue));
// Cannot change the value of a SafeHandle-derived field in a struct when marshalling byref.
Assert.Throws <NotSupportedException>(() => SafeHandleNative.StructWithSafeHandleByRef(ref str, initialValue, newValue));
// Cannot create a SafeHandle-derived field value.
Assert.Throws <NotSupportedException>(() => SafeHandleNative.StructWithSafeHandleOut(out var defaultOutStruct, initialValue));
}
public static void RunTest()
{
// Test that our SafeHandle-derived object has its underlying handle set after a P/Invoke
// even if there's an exception during the unmarshal phase.
IntPtr value = (IntPtr)123;
TestSafeHandle h = new TestSafeHandle();
Assert.Throws <InvalidOperationException>(() => SafeHandleNative.GetHandleAndCookie(out _, value, out h));
Assert.AreEqual(value, h.DangerousGetHandle());
// Try again, this time triggering unmarshal failure with an array.
value = (IntPtr)456;
h = new TestSafeHandle();
Assert.Throws <OverflowException>(() => SafeHandleNative.GetHandleAndArray(out _, out _, value, out h));
Assert.AreEqual(value, h.DangerousGetHandle());
}
public static extern void GetHandleAndArray(out short arrSize, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] out short[] arrShort, IntPtr value, out TestSafeHandle handle);
public static extern void GetHandleAndCookie([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(ThrowingCustomMarshaler), MarshalCookie = "")] out object cookie, IntPtr value, out TestSafeHandle handle);
public static extern void SafeHandleOut(out TestSafeHandle handle, IntPtr expectedValue);
public static extern bool SafeHandleByRef(ref TestSafeHandle handle, IntPtr expectedValue, IntPtr newValue);
public static extern bool SafeHandleByValue(TestSafeHandle handle, IntPtr expectedValue);
public static extern void SafeHandle_Invalid([MarshalAs(UnmanagedType.Interface)] TestSafeHandle handle);