1// Copyright (c) 2010 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome_frame/stream_impl.h"
6
7#include "base/logging.h"
8
9void StreamImpl::Initialize(IStream* delegate) {
10  delegate_ = delegate;
11}
12
13STDMETHODIMP StreamImpl::Write(const void * buffer, ULONG size,
14                               ULONG* size_written) {
15  HRESULT hr = E_NOTIMPL;
16  if (delegate_)
17    hr = delegate_->Write(buffer, size, size_written);
18  return hr;
19}
20
21STDMETHODIMP StreamImpl::Read(void* pv, ULONG cb, ULONG* read) {
22  HRESULT hr = E_NOTIMPL;
23  if (delegate_)
24    hr = delegate_->Read(pv, cb, read);
25  return hr;
26}
27
28STDMETHODIMP StreamImpl::Seek(LARGE_INTEGER move, DWORD origin,
29                              ULARGE_INTEGER* new_pos) {
30  HRESULT hr = E_NOTIMPL;
31  if (delegate_)
32    hr = delegate_->Seek(move, origin, new_pos);
33  return hr;
34}
35
36STDMETHODIMP StreamImpl::SetSize(ULARGE_INTEGER new_size) {
37  HRESULT hr = E_NOTIMPL;
38  if (delegate_)
39    hr = delegate_->SetSize(new_size);
40  return hr;
41}
42
43STDMETHODIMP StreamImpl::CopyTo(IStream* stream, ULARGE_INTEGER cb,
44                                ULARGE_INTEGER* read,
45                                ULARGE_INTEGER* written) {
46  HRESULT hr = E_NOTIMPL;
47  if (delegate_)
48    hr = delegate_->CopyTo(stream, cb, read, written);
49  return hr;
50}
51
52STDMETHODIMP StreamImpl::Commit(DWORD flags) {
53  HRESULT hr = E_NOTIMPL;
54  if (delegate_)
55    hr = delegate_->Commit(flags);
56  return hr;
57}
58
59STDMETHODIMP StreamImpl::Revert() {
60  HRESULT hr = E_NOTIMPL;
61  if (delegate_)
62    hr = delegate_->Revert();
63  return hr;
64}
65
66STDMETHODIMP StreamImpl::LockRegion(ULARGE_INTEGER offset, ULARGE_INTEGER cb,
67                                    DWORD type) {
68  HRESULT hr = E_NOTIMPL;
69  if (delegate_)
70    hr = delegate_->LockRegion(offset, cb, type);
71  return hr;
72}
73
74STDMETHODIMP StreamImpl::UnlockRegion(ULARGE_INTEGER offset, ULARGE_INTEGER cb,
75                                      DWORD type) {
76  HRESULT hr = E_NOTIMPL;
77  if (delegate_)
78    hr = delegate_->UnlockRegion(offset, cb, type);
79  return hr;
80}
81
82STDMETHODIMP StreamImpl::Stat(STATSTG* statstg, DWORD flag) {
83  HRESULT hr = E_NOTIMPL;
84  if (delegate_)
85    hr = delegate_->Stat(statstg, flag);
86  return hr;
87}
88
89STDMETHODIMP StreamImpl::Clone(IStream** stream) {
90  HRESULT hr = E_NOTIMPL;
91  if (delegate_)
92    hr = delegate_->Clone(stream);
93  return hr;
94}
95
96