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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 | |
9 void StreamImpl::Initialize(IStream* delegate) { | |
10 delegate_ = delegate; | |
11 } | |
12 | |
13 STDMETHODIMP 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 | |
21 STDMETHODIMP 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 | |
28 STDMETHODIMP 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 | |
36 STDMETHODIMP 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 | |
43 STDMETHODIMP 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 | |
52 STDMETHODIMP StreamImpl::Commit(DWORD flags) { | |
53 HRESULT hr = E_NOTIMPL; | |
54 if (delegate_) | |
55 hr = delegate_->Commit(flags); | |
56 return hr; | |
57 } | |
58 | |
59 STDMETHODIMP StreamImpl::Revert() { | |
60 HRESULT hr = E_NOTIMPL; | |
61 if (delegate_) | |
62 hr = delegate_->Revert(); | |
63 return hr; | |
64 } | |
65 | |
66 STDMETHODIMP 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 | |
74 STDMETHODIMP 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 | |
82 STDMETHODIMP 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 | |
89 STDMETHODIMP StreamImpl::Clone(IStream** stream) { | |
90 HRESULT hr = E_NOTIMPL; | |
91 if (delegate_) | |
92 hr = delegate_->Clone(stream); | |
93 return hr; | |
94 } | |
95 | |
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