diff options
Diffstat (limited to '')
-rw-r--r-- | src/stable/myriadstream.cpp | 344 |
1 files changed, 172 insertions, 172 deletions
diff --git a/src/stable/myriadstream.cpp b/src/stable/myriadstream.cpp index 58d3936..c33445a 100644 --- a/src/stable/myriadstream.cpp +++ b/src/stable/myriadstream.cpp | |||
@@ -9,7 +9,7 @@ | |||
9 | 9 | ||
10 | #include <string.h> | 10 | #include <string.h> |
11 | 11 | ||
12 | // #define MYRIAD_STREAM_DEBUG 1 | 12 | // #define MYRIAD_STREAM_DEBUG 1 |
13 | 13 | ||
14 | #ifdef MYRIAD_STREAM_DEBUG | 14 | #ifdef MYRIAD_STREAM_DEBUG |
15 | #include "bu/sio.h" | 15 | #include "bu/sio.h" |
@@ -19,27 +19,27 @@ using Bu::Fmt; | |||
19 | #endif | 19 | #endif |
20 | 20 | ||
21 | Bu::MyriadStream::MyriadStream( Bu::Myriad &rMyriad, | 21 | Bu::MyriadStream::MyriadStream( Bu::Myriad &rMyriad, |
22 | Bu::Myriad::Stream *pStream ) : | 22 | Bu::Myriad::Stream *pStream ) : |
23 | rMyriad( rMyriad ), | 23 | rMyriad( rMyriad ), |
24 | pStream( pStream ), | 24 | pStream( pStream ), |
25 | pCurBlock( NULL ), | 25 | pCurBlock( NULL ), |
26 | iPos( 0 ) | 26 | iPos( 0 ) |
27 | { | 27 | { |
28 | #ifdef MYRIAD_STREAM_DEBUG | 28 | #ifdef MYRIAD_STREAM_DEBUG |
29 | sio << "MyriadStream: " << __LINE__ << ": Created, iId=" << pStream->iId << ", iSize=" | 29 | sio << "MyriadStream: " << __LINE__ << ": Created, iId=" << pStream->iId << ", iSize=" |
30 | << pStream->iSize << sio.nl; | 30 | << pStream->iSize << sio.nl; |
31 | #endif | 31 | #endif |
32 | //pCurBlock = rMyriad.newBlock(); | 32 | //pCurBlock = rMyriad.newBlock(); |
33 | //rMyriad.getBlock( uStream, pCurBlock ); | 33 | //rMyriad.getBlock( uStream, pCurBlock ); |
34 | //uSize = pCurBlock->uBytesUsed; | 34 | //uSize = pCurBlock->uBytesUsed; |
35 | } | 35 | } |
36 | 36 | ||
37 | Bu::MyriadStream::~MyriadStream() | 37 | Bu::MyriadStream::~MyriadStream() |
38 | { | 38 | { |
39 | if( pCurBlock ) | 39 | if( pCurBlock ) |
40 | rMyriad.releaseBlock( pCurBlock ); | 40 | rMyriad.releaseBlock( pCurBlock ); |
41 | //rMyriad.updateStreamSize( uStream, uSize ); | 41 | //rMyriad.updateStreamSize( uStream, uSize ); |
42 | //rMyriad.deleteBlock( pCurBlock ); | 42 | //rMyriad.deleteBlock( pCurBlock ); |
43 | } | 43 | } |
44 | 44 | ||
45 | void Bu::MyriadStream::close() | 45 | void Bu::MyriadStream::close() |
@@ -49,200 +49,200 @@ void Bu::MyriadStream::close() | |||
49 | Bu::size Bu::MyriadStream::read( void *pBuf, Bu::size nBytes ) | 49 | Bu::size Bu::MyriadStream::read( void *pBuf, Bu::size nBytes ) |
50 | { | 50 | { |
51 | #ifdef MYRIAD_STREAM_DEBUG | 51 | #ifdef MYRIAD_STREAM_DEBUG |
52 | sio << "MyriadStream: read: " << __LINE__ << ": Started, asked to read " << nBytes << "b." | 52 | sio << "MyriadStream: read: " << __LINE__ << ": Started, asked to read " << nBytes << "b." |
53 | << sio.nl; | 53 | << sio.nl; |
54 | #endif | 54 | #endif |
55 | if( nBytes > (Bu::size)pStream->iSize-iPos ) | 55 | if( nBytes > (Bu::size)pStream->iSize-iPos ) |
56 | nBytes = pStream->iSize-iPos; | 56 | nBytes = pStream->iSize-iPos; |
57 | if( nBytes <= 0 ) | 57 | if( nBytes <= 0 ) |
58 | return 0; | 58 | return 0; |
59 | int iLeft = nBytes; | 59 | int iLeft = nBytes; |
60 | #ifdef MYRIAD_STREAM_DEBUG | 60 | #ifdef MYRIAD_STREAM_DEBUG |
61 | sio << "MyriadStream: read: " << __LINE__ << ": Started, going to read " << nBytes << "b." | 61 | sio << "MyriadStream: read: " << __LINE__ << ": Started, going to read " << nBytes << "b." |
62 | << sio.nl; | 62 | << sio.nl; |
63 | #endif | 63 | #endif |
64 | if( pCurBlock == NULL ) | 64 | if( pCurBlock == NULL ) |
65 | { | 65 | { |
66 | #ifdef MYRIAD_STREAM_DEBUG | 66 | #ifdef MYRIAD_STREAM_DEBUG |
67 | sio << "MyriadStream: read: " << __LINE__ << ": No block loaded, loading initial block." | 67 | sio << "MyriadStream: read: " << __LINE__ << ": No block loaded, loading initial block." |
68 | << sio.nl; | 68 | << sio.nl; |
69 | #endif | 69 | #endif |
70 | pCurBlock = rMyriad.getBlock( | 70 | pCurBlock = rMyriad.getBlock( |
71 | pStream->aBlocks[iPos/rMyriad.iBlockSize] | 71 | pStream->aBlocks[iPos/rMyriad.iBlockSize] |
72 | ); | 72 | ); |
73 | } | 73 | } |
74 | while( iLeft > 0 ) | 74 | while( iLeft > 0 ) |
75 | { | 75 | { |
76 | int iCurBlock = pStream->aBlocks[iPos/rMyriad.iBlockSize]; | 76 | int iCurBlock = pStream->aBlocks[iPos/rMyriad.iBlockSize]; |
77 | if( pCurBlock->iBlockIndex != iCurBlock ) | 77 | if( pCurBlock->iBlockIndex != iCurBlock ) |
78 | { | 78 | { |
79 | #ifdef MYRIAD_STREAM_DEBUG | 79 | #ifdef MYRIAD_STREAM_DEBUG |
80 | sio << "MyriadStream: read: " << __LINE__ << ": Loading new block " << iCurBlock << "." | 80 | sio << "MyriadStream: read: " << __LINE__ << ": Loading new block " << iCurBlock << "." |
81 | << sio.nl; | 81 | << sio.nl; |
82 | #endif | 82 | #endif |
83 | rMyriad.releaseBlock( pCurBlock ); | 83 | rMyriad.releaseBlock( pCurBlock ); |
84 | pCurBlock = rMyriad.getBlock( iCurBlock ); | 84 | pCurBlock = rMyriad.getBlock( iCurBlock ); |
85 | } | 85 | } |
86 | 86 | ||
87 | int iAmnt = Bu::buMin( | 87 | int iAmnt = Bu::buMin( |
88 | Bu::buMin( | 88 | Bu::buMin( |
89 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, | 89 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, |
90 | iLeft | 90 | iLeft |
91 | ), | 91 | ), |
92 | pStream->iSize-iPos | 92 | pStream->iSize-iPos |
93 | ); | 93 | ); |
94 | #ifdef MYRIAD_STREAM_DEBUG | 94 | #ifdef MYRIAD_STREAM_DEBUG |
95 | sio << "MyriadStream: read: " << __LINE__ << ": Copying out bytes: " | 95 | sio << "MyriadStream: read: " << __LINE__ << ": Copying out bytes: " |
96 | << iPos << "(" << (iPos%rMyriad.iBlockSize) << ")+" | 96 | << iPos << "(" << (iPos%rMyriad.iBlockSize) << ")+" |
97 | << iAmnt | 97 | << iAmnt |
98 | << ", " << iLeft << "b left." << sio.nl; | 98 | << ", " << iLeft << "b left." << sio.nl; |
99 | #endif | 99 | #endif |
100 | memcpy( | 100 | memcpy( |
101 | pBuf, | 101 | pBuf, |
102 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), | 102 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), |
103 | iAmnt | 103 | iAmnt |
104 | ); | 104 | ); |
105 | iPos += iAmnt; | 105 | iPos += iAmnt; |
106 | pBuf = &((char *)pBuf)[iAmnt]; | 106 | pBuf = &((char *)pBuf)[iAmnt]; |
107 | iLeft -= iAmnt; | 107 | iLeft -= iAmnt; |
108 | } | 108 | } |
109 | return nBytes; | 109 | return nBytes; |
110 | } | 110 | } |
111 | 111 | ||
112 | Bu::size Bu::MyriadStream::write( const void *pBuf, Bu::size nBytes ) | 112 | Bu::size Bu::MyriadStream::write( const void *pBuf, Bu::size nBytes ) |
113 | { | 113 | { |
114 | if( nBytes <= 0 ) | 114 | if( nBytes <= 0 ) |
115 | return 0; | 115 | return 0; |
116 | 116 | ||
117 | #ifdef MYRIAD_STREAM_DEBUG | 117 | #ifdef MYRIAD_STREAM_DEBUG |
118 | sio << "MyriadStream: write: " << __LINE__ << ": Started, asked to write " << nBytes << "b." | 118 | sio << "MyriadStream: write: " << __LINE__ << ": Started, asked to write " << nBytes << "b." |
119 | << sio.nl; | 119 | << sio.nl; |
120 | #endif | 120 | #endif |
121 | if( nBytes <= 0 ) | 121 | if( nBytes <= 0 ) |
122 | return 0; | 122 | return 0; |
123 | int iLeft = nBytes; | 123 | int iLeft = nBytes; |
124 | /* | 124 | /* |
125 | if( pCurBlock == NULL ) | 125 | if( pCurBlock == NULL ) |
126 | { | 126 | { |
127 | #ifdef MYRIAD_STREAM_DEBUG | 127 | #ifdef MYRIAD_STREAM_DEBUG |
128 | sio << "MyriadStream: write: No block loaded, loading initial block." | 128 | sio << "MyriadStream: write: No block loaded, loading initial block." |
129 | << sio.nl; | 129 | << sio.nl; |
130 | #endif | 130 | #endif |
131 | pCurBlock = rMyriad.getBlock( | 131 | pCurBlock = rMyriad.getBlock( |
132 | pStream->aBlocks[iPos/rMyriad.iBlockSize] | 132 | pStream->aBlocks[iPos/rMyriad.iBlockSize] |
133 | ); | 133 | ); |
134 | }*/ | 134 | }*/ |
135 | 135 | ||
136 | while( iLeft > 0 ) | 136 | while( iLeft > 0 ) |
137 | { | 137 | { |
138 | int iCurBlock; | 138 | int iCurBlock; |
139 | if( iPos/rMyriad.iBlockSize < pStream->aBlocks.getSize() ) | 139 | if( iPos/rMyriad.iBlockSize < pStream->aBlocks.getSize() ) |
140 | { | 140 | { |
141 | iCurBlock = pStream->aBlocks[iPos/rMyriad.iBlockSize]; | 141 | iCurBlock = pStream->aBlocks[iPos/rMyriad.iBlockSize]; |
142 | } | 142 | } |
143 | else | 143 | else |
144 | { | 144 | { |
145 | iCurBlock = rMyriad.streamAddBlock( pStream ); | 145 | iCurBlock = rMyriad.streamAddBlock( pStream ); |
146 | #ifdef MYRIAD_STREAM_DEBUG | 146 | #ifdef MYRIAD_STREAM_DEBUG |
147 | sio << "MyriadStream: write: " << __LINE__ << ": New block allocated and appended: " | 147 | sio << "MyriadStream: write: " << __LINE__ << ": New block allocated and appended: " |
148 | << iCurBlock << "." << sio.nl; | 148 | << iCurBlock << "." << sio.nl; |
149 | 149 | ||
150 | #endif | 150 | #endif |
151 | } | 151 | } |
152 | if( !pCurBlock || pCurBlock->iBlockIndex != iCurBlock ) | 152 | if( !pCurBlock || pCurBlock->iBlockIndex != iCurBlock ) |
153 | { | 153 | { |
154 | #ifdef MYRIAD_STREAM_DEBUG | 154 | #ifdef MYRIAD_STREAM_DEBUG |
155 | sio << "MyriadStream: write: " << __LINE__ << ": Loading new block " << iCurBlock << "." | 155 | sio << "MyriadStream: write: " << __LINE__ << ": Loading new block " << iCurBlock << "." |
156 | << sio.nl; | 156 | << sio.nl; |
157 | #endif | 157 | #endif |
158 | rMyriad.releaseBlock( pCurBlock ); | 158 | rMyriad.releaseBlock( pCurBlock ); |
159 | pCurBlock = rMyriad.getBlock( iCurBlock ); | 159 | pCurBlock = rMyriad.getBlock( iCurBlock ); |
160 | } | 160 | } |
161 | pCurBlock->bChanged = true; | 161 | pCurBlock->bChanged = true; |
162 | 162 | ||
163 | // There are two main writing modes when it comes down to it. | 163 | // There are two main writing modes when it comes down to it. |
164 | // Overwrite mode and append mode. Append is what pretty much always | 164 | // Overwrite mode and append mode. Append is what pretty much always |
165 | // happens when creating a new stream. | 165 | // happens when creating a new stream. |
166 | if( iPos < pStream->iSize ) | 166 | if( iPos < pStream->iSize ) |
167 | { | 167 | { |
168 | int iAmnt = Bu::buMin( | 168 | int iAmnt = Bu::buMin( |
169 | Bu::buMin( | 169 | Bu::buMin( |
170 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, | 170 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, |
171 | iLeft | 171 | iLeft |
172 | ), | 172 | ), |
173 | pStream->iSize-iPos | 173 | pStream->iSize-iPos |
174 | ); | 174 | ); |
175 | #ifdef MYRIAD_STREAM_DEBUG | 175 | #ifdef MYRIAD_STREAM_DEBUG |
176 | sio << "MyriadStream: write (ovr): " << __LINE__ << ": Copying in bytes: " | 176 | sio << "MyriadStream: write (ovr): " << __LINE__ << ": Copying in bytes: " |
177 | << (iPos%rMyriad.iBlockSize) << "+" | 177 | << (iPos%rMyriad.iBlockSize) << "+" |
178 | << iAmnt | 178 | << iAmnt |
179 | << ", " << iLeft << "b left." << sio.nl; | 179 | << ", " << iLeft << "b left." << sio.nl; |
180 | #endif | 180 | #endif |
181 | memcpy( | 181 | memcpy( |
182 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), | 182 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), |
183 | pBuf, | 183 | pBuf, |
184 | iAmnt | 184 | iAmnt |
185 | ); | 185 | ); |
186 | iPos += iAmnt; | 186 | iPos += iAmnt; |
187 | pBuf = &((char *)pBuf)[iAmnt]; | 187 | pBuf = &((char *)pBuf)[iAmnt]; |
188 | iLeft -= iAmnt; | 188 | iLeft -= iAmnt; |
189 | } | 189 | } |
190 | else | 190 | else |
191 | { | 191 | { |
192 | int iAmnt = Bu::buMin( | 192 | int iAmnt = Bu::buMin( |
193 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, | 193 | rMyriad.iBlockSize - iPos%rMyriad.iBlockSize, |
194 | iLeft | 194 | iLeft |
195 | ); | 195 | ); |
196 | #ifdef MYRIAD_STREAM_DEBUG | 196 | #ifdef MYRIAD_STREAM_DEBUG |
197 | sio << "MyriadStream: write (app): " << __LINE__ << ": Copying in bytes: " | 197 | sio << "MyriadStream: write (app): " << __LINE__ << ": Copying in bytes: " |
198 | << (iPos%rMyriad.iBlockSize) << "+" | 198 | << (iPos%rMyriad.iBlockSize) << "+" |
199 | << iAmnt | 199 | << iAmnt |
200 | << ", " << iLeft << "b left." << sio.nl; | 200 | << ", " << iLeft << "b left." << sio.nl; |
201 | #endif | 201 | #endif |
202 | memcpy( | 202 | memcpy( |
203 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), | 203 | pCurBlock->pData+(iPos%rMyriad.iBlockSize), |
204 | pBuf, | 204 | pBuf, |
205 | iAmnt | 205 | iAmnt |
206 | ); | 206 | ); |
207 | iPos += iAmnt; | 207 | iPos += iAmnt; |
208 | pStream->iSize += iAmnt; | 208 | pStream->iSize += iAmnt; |
209 | rMyriad.headerChanged(); | 209 | rMyriad.headerChanged(); |
210 | pBuf = &((char *)pBuf)[iAmnt]; | 210 | pBuf = &((char *)pBuf)[iAmnt]; |
211 | iLeft -= iAmnt; | 211 | iLeft -= iAmnt; |
212 | } | 212 | } |
213 | } | 213 | } |
214 | 214 | ||
215 | return nBytes; | 215 | return nBytes; |
216 | } | 216 | } |
217 | 217 | ||
218 | Bu::size Bu::MyriadStream::tell() | 218 | Bu::size Bu::MyriadStream::tell() |
219 | { | 219 | { |
220 | return iPos; | 220 | return iPos; |
221 | } | 221 | } |
222 | 222 | ||
223 | void Bu::MyriadStream::seek( Bu::size offset ) | 223 | void Bu::MyriadStream::seek( Bu::size offset ) |
224 | { | 224 | { |
225 | iPos += offset; | 225 | iPos += offset; |
226 | } | 226 | } |
227 | 227 | ||
228 | void Bu::MyriadStream::setPos( Bu::size pos ) | 228 | void Bu::MyriadStream::setPos( Bu::size pos ) |
229 | { | 229 | { |
230 | iPos = pos; | 230 | iPos = pos; |
231 | } | 231 | } |
232 | 232 | ||
233 | void Bu::MyriadStream::setPosEnd( Bu::size pos ) | 233 | void Bu::MyriadStream::setPosEnd( Bu::size pos ) |
234 | { | 234 | { |
235 | iPos = pStream->iSize-pos; | 235 | iPos = pStream->iSize-pos; |
236 | } | 236 | } |
237 | 237 | ||
238 | bool Bu::MyriadStream::isEos() | 238 | bool Bu::MyriadStream::isEos() |
239 | { | 239 | { |
240 | return iPos >= pStream->iSize; | 240 | return iPos >= pStream->iSize; |
241 | } | 241 | } |
242 | 242 | ||
243 | bool Bu::MyriadStream::isOpen() | 243 | bool Bu::MyriadStream::isOpen() |
244 | { | 244 | { |
245 | return true; | 245 | return true; |
246 | } | 246 | } |
247 | 247 | ||
248 | void Bu::MyriadStream::flush() | 248 | void Bu::MyriadStream::flush() |
@@ -251,32 +251,32 @@ void Bu::MyriadStream::flush() | |||
251 | 251 | ||
252 | bool Bu::MyriadStream::canRead() | 252 | bool Bu::MyriadStream::canRead() |
253 | { | 253 | { |
254 | return true; | 254 | return true; |
255 | } | 255 | } |
256 | 256 | ||
257 | bool Bu::MyriadStream::canWrite() | 257 | bool Bu::MyriadStream::canWrite() |
258 | { | 258 | { |
259 | return true; | 259 | return true; |
260 | } | 260 | } |
261 | 261 | ||
262 | bool Bu::MyriadStream::isReadable() | 262 | bool Bu::MyriadStream::isReadable() |
263 | { | 263 | { |
264 | return true; | 264 | return true; |
265 | } | 265 | } |
266 | 266 | ||
267 | bool Bu::MyriadStream::isWritable() | 267 | bool Bu::MyriadStream::isWritable() |
268 | { | 268 | { |
269 | return true; | 269 | return true; |
270 | } | 270 | } |
271 | 271 | ||
272 | bool Bu::MyriadStream::isSeekable() | 272 | bool Bu::MyriadStream::isSeekable() |
273 | { | 273 | { |
274 | return true; | 274 | return true; |
275 | } | 275 | } |
276 | 276 | ||
277 | bool Bu::MyriadStream::isBlocking() | 277 | bool Bu::MyriadStream::isBlocking() |
278 | { | 278 | { |
279 | return true; | 279 | return true; |
280 | } | 280 | } |
281 | 281 | ||
282 | void Bu::MyriadStream::setBlocking( bool /*bBlocking*/ ) | 282 | void Bu::MyriadStream::setBlocking( bool /*bBlocking*/ ) |
@@ -285,25 +285,25 @@ void Bu::MyriadStream::setBlocking( bool /*bBlocking*/ ) | |||
285 | 285 | ||
286 | void Bu::MyriadStream::setSize( Bu::size iSize ) | 286 | void Bu::MyriadStream::setSize( Bu::size iSize ) |
287 | { | 287 | { |
288 | if( iSize < 0 ) | 288 | if( iSize < 0 ) |
289 | iSize = 0; | 289 | iSize = 0; |
290 | rMyriad.setStreamSize( pStream, iSize ); | 290 | rMyriad.setStreamSize( pStream, iSize ); |
291 | if( iPos > iSize ) | 291 | if( iPos > iSize ) |
292 | iPos = iSize; | 292 | iPos = iSize; |
293 | } | 293 | } |
294 | 294 | ||
295 | Bu::size Bu::MyriadStream::getSize() const | 295 | Bu::size Bu::MyriadStream::getSize() const |
296 | { | 296 | { |
297 | return pStream->iSize; | 297 | return pStream->iSize; |
298 | } | 298 | } |
299 | 299 | ||
300 | Bu::size Bu::MyriadStream::getBlockSize() const | 300 | Bu::size Bu::MyriadStream::getBlockSize() const |
301 | { | 301 | { |
302 | return rMyriad.getBlockSize(); | 302 | return rMyriad.getBlockSize(); |
303 | } | 303 | } |
304 | 304 | ||
305 | Bu::String Bu::MyriadStream::getLocation() const | 305 | Bu::String Bu::MyriadStream::getLocation() const |
306 | { | 306 | { |
307 | return Bu::String("%1").arg( pStream->iId ); | 307 | return Bu::String("%1").arg( pStream->iId ); |
308 | } | 308 | } |
309 | 309 | ||