1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
// BZip2Handler.cpp
#include "StdAfx.h"
#include "Common/ComTry.h"
#include "Common/Defs.h"
#include "Windows/PropVariant.h"
#include "Windows/Defs.h"
#include "../../Common/ProgressUtils.h"
#include "../../Common/StreamUtils.h"
#include "../../Common/CreateCoder.h"
#include "../Common/DummyOutStream.h"
#include "BZip2Handler.h"
using namespace NWindows;
namespace NArchive {
namespace NBZip2 {
static const CMethodId kMethodId_BZip2 = 0x040202;
STATPROPSTG kProps[] =
{
{ NULL, kpidPackedSize, VT_UI8}
};
IMP_IInArchive_Props
IMP_IInArchive_ArcProps_NO
STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
{
*numItems = 1;
return S_OK;
}
STDMETHODIMP CHandler::GetProperty(UInt32 /* index */, PROPID propID, PROPVARIANT *value)
{
NWindows::NCOM::CPropVariant prop;
switch(propID)
{
case kpidPackedSize: prop = _item.PackSize; break;
}
prop.Detach(value);
return S_OK;
}
STDMETHODIMP CHandler::Open(IInStream *stream,
const UInt64 * /* maxCheckStartPosition */,
IArchiveOpenCallback * /* openArchiveCallback */)
{
COM_TRY_BEGIN
try
{
RINOK(stream->Seek(0, STREAM_SEEK_CUR, &_streamStartPosition));
const int kSignatureSize = 3;
Byte buffer[kSignatureSize];
UInt32 processedSize;
RINOK(ReadStream(stream, buffer, kSignatureSize, &processedSize));
if (processedSize != kSignatureSize)
return S_FALSE;
if (buffer[0] != 'B' || buffer[1] != 'Z' || buffer[2] != 'h')
return S_FALSE;
UInt64 endPosition;
RINOK(stream->Seek(0, STREAM_SEEK_END, &endPosition));
_item.PackSize = endPosition - _streamStartPosition;
_stream = stream;
}
catch(...)
{
return S_FALSE;
}
return S_OK;
COM_TRY_END
}
STDMETHODIMP CHandler::Close()
{
_stream.Release();
return S_OK;
}
STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
Int32 testModeSpec, IArchiveExtractCallback *extractCallback)
{
COM_TRY_BEGIN
bool allFilesMode = (numItems == UInt32(-1));
if (!allFilesMode)
{
if (numItems == 0)
return S_OK;
if (numItems != 1)
return E_INVALIDARG;
if (indices[0] != 0)
return E_INVALIDARG;
}
bool testMode = (testModeSpec != 0);
extractCallback->SetTotal(_item.PackSize);
UInt64 currentTotalPacked = 0;
RINOK(extractCallback->SetCompleted(¤tTotalPacked));
CMyComPtr<ISequentialOutStream> realOutStream;
Int32 askMode;
askMode = testMode ? NExtract::NAskMode::kTest :
NExtract::NAskMode::kExtract;
RINOK(extractCallback->GetStream(0, &realOutStream, askMode));
if(!testMode && !realOutStream)
return S_OK;
extractCallback->PrepareOperation(askMode);
CMyComPtr<ICompressCoder> decoder;
HRESULT loadResult = CreateCoder(
EXTERNAL_CODECS_VARS
kMethodId_BZip2, decoder, false);
if (loadResult != S_OK || !decoder)
{
RINOK(extractCallback->SetOperationResult(NExtract::NOperationResult::kUnSupportedMethod));
return S_OK;
}
#ifdef COMPRESS_MT
{
CMyComPtr<ICompressSetCoderMt> setCoderMt;
decoder.QueryInterface(IID_ICompressSetCoderMt, &setCoderMt);
if (setCoderMt)
{
RINOK(setCoderMt->SetNumberOfThreads(_numThreads));
}
}
#endif
CDummyOutStream *outStreamSpec = new CDummyOutStream;
CMyComPtr<ISequentialOutStream> outStream(outStreamSpec);
outStreamSpec->SetStream(realOutStream);
outStreamSpec->Init();
realOutStream.Release();
CLocalProgress *lps = new CLocalProgress;
CMyComPtr<ICompressProgressInfo> progress = lps;
lps->Init(extractCallback, true);
RINOK(_stream->Seek(_streamStartPosition, STREAM_SEEK_SET, NULL));
HRESULT result = S_OK;
bool firstItem = true;
for (;;)
{
lps->InSize = currentTotalPacked;
lps->OutSize = outStreamSpec->GetSize();
RINOK(lps->SetCur());
const int kSignatureSize = 3;
Byte buffer[kSignatureSize];
UInt32 processedSize;
RINOK(ReadStream(_stream, buffer, kSignatureSize, &processedSize));
if (processedSize < kSignatureSize)
{
if (firstItem)
return E_FAIL;
break;
}
if (buffer[0] != 'B' || buffer[1] != 'Z' || buffer[2] != 'h')
{
if (firstItem)
return E_FAIL;
break;
}
firstItem = false;
UInt64 dataStartPos;
RINOK(_stream->Seek((UInt64)(Int64)(-3), STREAM_SEEK_CUR, &dataStartPos));
result = decoder->Code(_stream, outStream, NULL, NULL, progress);
if (result != S_OK)
break;
CMyComPtr<ICompressGetInStreamProcessedSize> getInStreamProcessedSize;
decoder.QueryInterface(IID_ICompressGetInStreamProcessedSize, &getInStreamProcessedSize);
if (!getInStreamProcessedSize)
break;
UInt64 packSize;
RINOK(getInStreamProcessedSize->GetInStreamProcessedSize(&packSize));
UInt64 pos;
RINOK(_stream->Seek(dataStartPos + packSize, STREAM_SEEK_SET, &pos));
currentTotalPacked = pos - _streamStartPosition;
}
outStream.Release();
Int32 retResult;
if (result == S_OK)
retResult = NExtract::NOperationResult::kOK;
else if (result == S_FALSE)
retResult = NExtract::NOperationResult::kDataError;
else
return result;
return extractCallback->SetOperationResult(retResult);
COM_TRY_END
}
IMPL_ISetCompressCodecsInfo
}}
|
