89 |
} |
} |
90 |
|
|
91 |
Chunk::~Chunk() { |
Chunk::~Chunk() { |
92 |
if (CurrentChunkSize != NewChunkSize) pFile->UnlogResized(this); |
pFile->UnlogResized(this); |
93 |
if (pChunkData) delete[] pChunkData; |
if (pChunkData) delete[] pChunkData; |
94 |
} |
} |
95 |
|
|
358 |
#elif defined(WIN32) |
#elif defined(WIN32) |
359 |
if (SetFilePointer(pFile->hFileWrite, ulStartPos + ulPos, NULL/*32 bit*/, FILE_BEGIN) == INVALID_SET_FILE_POINTER) { |
if (SetFilePointer(pFile->hFileWrite, ulStartPos + ulPos, NULL/*32 bit*/, FILE_BEGIN) == INVALID_SET_FILE_POINTER) { |
360 |
throw Exception("Could not seek to position " + ToString(ulPos) + |
throw Exception("Could not seek to position " + ToString(ulPos) + |
361 |
" in chunk (" + ToString(ulStartPos + ulPos) + " in file)"); |
" in chunk (" + ToString(ulStartPos + ulPos) + " in file)"); |
362 |
} |
} |
363 |
DWORD writtenWords; |
DWORD writtenWords; |
364 |
WriteFile(pFile->hFileWrite, pData, WordCount * WordSize, &writtenWords, NULL); |
WriteFile(pFile->hFileWrite, pData, WordCount * WordSize, &writtenWords, NULL); |
1152 |
pSubChunks->push_back(pNewChunk); |
pSubChunks->push_back(pNewChunk); |
1153 |
(*pSubChunksMap)[uiChunkID] = pNewChunk; |
(*pSubChunksMap)[uiChunkID] = pNewChunk; |
1154 |
pNewChunk->Resize(uiBodySize); |
pNewChunk->Resize(uiBodySize); |
1155 |
|
NewChunkSize += CHUNK_HEADER_SIZE; |
1156 |
|
pFile->LogAsResized(this); |
1157 |
return pNewChunk; |
return pNewChunk; |
1158 |
} |
} |
1159 |
|
|
1189 |
List* pNewListChunk = new List(pFile, this, uiListType); |
List* pNewListChunk = new List(pFile, this, uiListType); |
1190 |
pSubChunks->push_back(pNewListChunk); |
pSubChunks->push_back(pNewListChunk); |
1191 |
(*pSubChunksMap)[CHUNK_ID_LIST] = pNewListChunk; |
(*pSubChunksMap)[CHUNK_ID_LIST] = pNewListChunk; |
1192 |
|
NewChunkSize += LIST_HEADER_SIZE; |
1193 |
|
pFile->LogAsResized(this); |
1194 |
return pNewListChunk; |
return pNewListChunk; |
1195 |
} |
} |
1196 |
|
|
1416 |
path.c_str(), GENERIC_READ, |
path.c_str(), GENERIC_READ, |
1417 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1418 |
NULL, OPEN_EXISTING, |
NULL, OPEN_EXISTING, |
1419 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1420 |
|
FILE_FLAG_RANDOM_ACCESS, NULL |
1421 |
); |
); |
1422 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
if (hFileRead == INVALID_HANDLE_VALUE) { |
1423 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1470 |
Filename.c_str(), GENERIC_READ, |
Filename.c_str(), GENERIC_READ, |
1471 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1472 |
NULL, OPEN_EXISTING, |
NULL, OPEN_EXISTING, |
1473 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1474 |
|
FILE_FLAG_RANDOM_ACCESS, |
1475 |
|
NULL |
1476 |
); |
); |
1477 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
if (hFileRead == INVALID_HANDLE_VALUE) { |
1478 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1500 |
GENERIC_READ | GENERIC_WRITE, |
GENERIC_READ | GENERIC_WRITE, |
1501 |
FILE_SHARE_READ, |
FILE_SHARE_READ, |
1502 |
NULL, OPEN_ALWAYS, |
NULL, OPEN_ALWAYS, |
1503 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1504 |
|
FILE_FLAG_RANDOM_ACCESS, |
1505 |
|
NULL |
1506 |
); |
); |
1507 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
if (hFileRead == INVALID_HANDLE_VALUE) { |
1508 |
hFileRead = hFileWrite = CreateFile( |
hFileRead = hFileWrite = CreateFile( |
1509 |
Filename.c_str(), GENERIC_READ, |
Filename.c_str(), GENERIC_READ, |
1510 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1511 |
NULL, OPEN_EXISTING, |
NULL, OPEN_EXISTING, |
1512 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1513 |
|
FILE_FLAG_RANDOM_ACCESS, |
1514 |
|
NULL |
1515 |
); |
); |
1516 |
throw Exception("Could not (re)open file \"" + Filename + "\" in read+write mode"); |
throw Exception("Could not (re)open file \"" + Filename + "\" in read+write mode"); |
1517 |
} |
} |
1590 |
|
|
1591 |
// first we sum up all positive chunk size changes (and skip all negative ones) |
// first we sum up all positive chunk size changes (and skip all negative ones) |
1592 |
unsigned long ulPositiveSizeDiff = 0; |
unsigned long ulPositiveSizeDiff = 0; |
1593 |
for (ChunkList::iterator iter = ResizedChunks.begin(), end = ResizedChunks.end(); iter != end; ++iter) { |
for (std::set<Chunk*>::const_iterator iter = ResizedChunks.begin(), end = ResizedChunks.end(); iter != end; ++iter) { |
1594 |
if ((*iter)->GetNewSize() == 0) { |
if ((*iter)->GetNewSize() == 0) { |
1595 |
throw Exception("There is at least one empty chunk (zero size): " + __resolveChunkPath(*iter)); |
throw Exception("There is at least one empty chunk (zero size): " + __resolveChunkPath(*iter)); |
1596 |
} |
} |
1597 |
if ((*iter)->GetNewSize() + 1L > (*iter)->GetSize()) { |
unsigned long ulDiff = (*iter)->GetNewSize() + (*iter)->GetNewSize() % 2 - (*iter)->GetSize() - (*iter)->GetSize() % 2; |
1598 |
unsigned long ulDiff = (*iter)->GetNewSize() - (*iter)->GetSize() + 1L; // +1 in case we have to add a pad byte |
if (ulDiff > 0) ulPositiveSizeDiff += ulDiff; |
|
ulPositiveSizeDiff += ulDiff; |
|
|
} |
|
1599 |
} |
} |
1600 |
|
|
1601 |
unsigned long ulWorkingFileSize = GetFileSize(); |
unsigned long ulWorkingFileSize = GetFileSize(); |
1611 |
#if defined(WIN32) |
#if defined(WIN32) |
1612 |
DWORD iBytesMoved = 1; // we have to pass it via pointer to the Windows API, thus the correct size must be ensured |
DWORD iBytesMoved = 1; // we have to pass it via pointer to the Windows API, thus the correct size must be ensured |
1613 |
#else |
#else |
1614 |
int iBytesMoved = 1; |
int iBytesMoved = 1; |
1615 |
#endif |
#endif |
1616 |
for (unsigned long ulPos = 0; iBytesMoved > 0; ulPos += iBytesMoved) { |
for (unsigned long ulPos = ulFileSize; iBytesMoved > 0; ) { |
1617 |
const unsigned long ulToMove = ulFileSize - ulPos; |
iBytesMoved = (ulPos < 4096) ? ulPos : 4096; |
1618 |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
ulPos -= iBytesMoved; |
1619 |
#if POSIX |
#if POSIX |
1620 |
lseek(hFileRead, ulPos, SEEK_SET); |
lseek(hFileRead, ulPos, SEEK_SET); |
1621 |
iBytesMoved = read(hFileRead, pCopyBuffer, iBytesMoved); |
iBytesMoved = read(hFileRead, pCopyBuffer, iBytesMoved); |
1678 |
#elif defined(WIN32) |
#elif defined(WIN32) |
1679 |
hFileWrite = CreateFile( |
hFileWrite = CreateFile( |
1680 |
path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, |
path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, |
1681 |
NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL |
NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL | |
1682 |
|
FILE_FLAG_RANDOM_ACCESS, NULL |
1683 |
); |
); |
1684 |
if (hFileWrite == INVALID_HANDLE_VALUE) { |
if (hFileWrite == INVALID_HANDLE_VALUE) { |
1685 |
hFileWrite = hFileRead; |
hFileWrite = hFileRead; |
1748 |
} |
} |
1749 |
|
|
1750 |
void File::LogAsResized(Chunk* pResizedChunk) { |
void File::LogAsResized(Chunk* pResizedChunk) { |
1751 |
ResizedChunks.push_back(pResizedChunk); |
ResizedChunks.insert(pResizedChunk); |
1752 |
} |
} |
1753 |
|
|
1754 |
void File::UnlogResized(Chunk* pResizedChunk) { |
void File::UnlogResized(Chunk* pResizedChunk) { |
1755 |
ResizedChunks.remove(pResizedChunk); |
ResizedChunks.erase(pResizedChunk); |
1756 |
} |
} |
1757 |
|
|
1758 |
unsigned long File::GetFileSize() { |
unsigned long File::GetFileSize() { |