passthrough.c File Reference

#include "dshow.h"
#include "wine/test.h"

Include dependency graph for passthrough.c:

Go to the source code of this file.

Macros
#define	COBJMACROS

Functions
static ULONG	get_refcount (void *iface)
static HRESULT WINAPI	outer_QueryInterface (IUnknown *iface, REFIID iid, void **out)
static ULONG WINAPI	outer_AddRef (IUnknown *iface)
static ULONG WINAPI	outer_Release (IUnknown *iface)
static void	test_aggregation (void)
	START_TEST (passthrough)

Variables
static const GUID	test_iid = {0x33333333}
static LONG	outer_ref = 1
static const IUnknownVtbl	outer_vtbl
static IUnknown	test_outer = {&outer_vtbl}

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 21 of file passthrough.c.

Function Documentation

get_refcount()

static ULONG get_refcount ( void *  iface )

static

Definition at line 25 of file passthrough.c.

{
    IUnknown *unknown = iface;
    IUnknown_AddRef(unknown);
    return IUnknown_Release(unknown);
}

Referenced by test_aggregation().

outer_AddRef()

static ULONG WINAPI outer_AddRef ( IUnknown *  iface )

static

Definition at line 48 of file passthrough.c.

{
    return InterlockedIncrement(&outer_ref);
}

outer_QueryInterface()

static HRESULT WINAPI outer_QueryInterface ( IUnknown *  iface, REFIID  iid, void **  out  )

static

Definition at line 35 of file passthrough.c.

{
    if (IsEqualGUID(iid, &IID_IUnknown)
            || IsEqualGUID(iid, &IID_ISeekingPassThru)
            || IsEqualGUID(iid, &test_iid))
    {
        *out = (IUnknown *)0xdeadbeef;
        return S_OK;
    }
    ok(0, "unexpected call %s\n", wine_dbgstr_guid(iid));
    return E_NOINTERFACE;
}

outer_Release()

static ULONG WINAPI outer_Release ( IUnknown *  iface )

static

Definition at line 53 of file passthrough.c.

{
    return InterlockedDecrement(&outer_ref);
}

START_TEST()

START_TEST

(

passthrough

)

Definition at line 126 of file passthrough.c.

{
    CoInitialize(NULL);
 
    test_aggregation();
 
    CoUninitialize();
}

test_aggregation()

static void test_aggregation ( void  )

static

Definition at line 67 of file passthrough.c.

{
    ISeekingPassThru *passthrough, *passthrough2;
    IUnknown *unk, *unk2;
    HRESULT hr;
    ULONG ref;
 
    passthrough = (ISeekingPassThru *)0xdeadbeef;
    hr = CoCreateInstance(&CLSID_SeekingPassThru, &test_outer, CLSCTX_INPROC_SERVER,
            &IID_ISeekingPassThru, (void **)&passthrough);
    ok(hr == E_NOINTERFACE, "Got hr %#lx.\n", hr);
    ok(!passthrough, "Got interface %p.\n", passthrough);
 
    hr = CoCreateInstance(&CLSID_SeekingPassThru, &test_outer, CLSCTX_INPROC_SERVER,
            &IID_IUnknown, (void **)&unk);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
    ok(outer_ref == 1, "Got unexpected refcount %ld.\n", outer_ref);
    ok(unk != &test_outer, "Returned IUnknown should not be outer IUnknown.\n");
    ref = get_refcount(unk);
    ok(ref == 1, "Got unexpected refcount %ld.\n", ref);
 
    ref = IUnknown_AddRef(unk);
    ok(ref == 2, "Got unexpected refcount %ld.\n", ref);
    ok(outer_ref == 1, "Got unexpected refcount %ld.\n", outer_ref);
 
    ref = IUnknown_Release(unk);
    ok(ref == 1, "Got unexpected refcount %ld.\n", ref);
    ok(outer_ref == 1, "Got unexpected refcount %ld.\n", outer_ref);
 
    hr = IUnknown_QueryInterface(unk, &IID_IUnknown, (void **)&unk2);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
    ok(unk2 == unk, "Got unexpected IUnknown %p.\n", unk2);
    IUnknown_Release(unk2);
 
    hr = IUnknown_QueryInterface(unk, &IID_ISeekingPassThru, (void **)&passthrough);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
 
    hr = ISeekingPassThru_QueryInterface(passthrough, &IID_IUnknown, (void **)&unk2);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
    ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2);
 
    hr = ISeekingPassThru_QueryInterface(passthrough, &IID_ISeekingPassThru, (void **)&passthrough2);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
    ok(passthrough2 == (ISeekingPassThru *)0xdeadbeef, "Got unexpected ISeekingPassThru %p.\n", passthrough2);
 
    hr = IUnknown_QueryInterface(unk, &test_iid, (void **)&unk2);
    ok(hr == E_NOINTERFACE, "Got hr %#lx.\n", hr);
    ok(!unk2, "Got unexpected IUnknown %p.\n", unk2);
 
    hr = ISeekingPassThru_QueryInterface(passthrough, &test_iid, (void **)&unk2);
    ok(hr == S_OK, "Got hr %#lx.\n", hr);
    ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2);
 
    ISeekingPassThru_Release(passthrough);
    ref = IUnknown_Release(unk);
    ok(!ref, "Got unexpected refcount %ld.\n", ref);
    ok(outer_ref == 1, "Got unexpected refcount %ld.\n", outer_ref);
}

Referenced by START_TEST().

Variable Documentation

outer_ref

LONG outer_ref = 1

static

Definition at line 33 of file passthrough.c.

Referenced by outer_AddRef(), outer_Release(), and test_aggregation().

outer_vtbl

const IUnknownVtbl outer_vtbl

static

Initial value:

=
{
    outer_QueryInterface,
    outer_AddRef,
    outer_Release,
}

Definition at line 58 of file passthrough.c.

test_iid

const GUID test_iid = {0x33333333}

static

Definition at line 32 of file passthrough.c.

Referenced by outer_QueryInterface(), and test_aggregation().

test_outer

IUnknown test_outer = {&outer_vtbl}

static

Definition at line 65 of file passthrough.c.

Referenced by test_aggregation().