2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2007 by Christian Schoenebeck * |
* Copyright (C) 2003-2011 by Christian Schoenebeck * |
6 |
* <cuse@users.sourceforge.net> * |
* <cuse@users.sourceforge.net> * |
7 |
* * |
* * |
8 |
* This library is free software; you can redistribute it and/or modify * |
* This library is free software; you can redistribute it and/or modify * |
21 |
* MA 02111-1307 USA * |
* MA 02111-1307 USA * |
22 |
***************************************************************************/ |
***************************************************************************/ |
23 |
|
|
24 |
|
#include <algorithm> |
25 |
|
#include <set> |
26 |
#include <string.h> |
#include <string.h> |
27 |
|
|
28 |
#include "RIFF.h" |
#include "RIFF.h" |
35 |
// * |
// * |
36 |
|
|
37 |
/// Returns a human readable path of the given chunk. |
/// Returns a human readable path of the given chunk. |
38 |
String __resolveChunkPath(Chunk* pCk) { |
static String __resolveChunkPath(Chunk* pCk) { |
39 |
String sPath; |
String sPath; |
40 |
for (Chunk* pChunk = pCk; pChunk; pChunk = pChunk->GetParent()) { |
for (Chunk* pChunk = pCk; pChunk; pChunk = pChunk->GetParent()) { |
41 |
if (pChunk->GetChunkID() == CHUNK_ID_LIST) { |
if (pChunk->GetChunkID() == CHUNK_ID_LIST) { |
60 |
ulPos = 0; |
ulPos = 0; |
61 |
pParent = NULL; |
pParent = NULL; |
62 |
pChunkData = NULL; |
pChunkData = NULL; |
63 |
|
CurrentChunkSize = 0; |
64 |
|
NewChunkSize = 0; |
65 |
ulChunkDataSize = 0; |
ulChunkDataSize = 0; |
66 |
ChunkID = CHUNK_ID_RIFF; |
ChunkID = CHUNK_ID_RIFF; |
67 |
this->pFile = pFile; |
this->pFile = pFile; |
76 |
pParent = Parent; |
pParent = Parent; |
77 |
ulPos = 0; |
ulPos = 0; |
78 |
pChunkData = NULL; |
pChunkData = NULL; |
79 |
|
CurrentChunkSize = 0; |
80 |
|
NewChunkSize = 0; |
81 |
ulChunkDataSize = 0; |
ulChunkDataSize = 0; |
82 |
ReadHeader(StartPos); |
ReadHeader(StartPos); |
83 |
} |
} |
88 |
this->pParent = pParent; |
this->pParent = pParent; |
89 |
ulPos = 0; |
ulPos = 0; |
90 |
pChunkData = NULL; |
pChunkData = NULL; |
|
ulChunkDataSize = 0; |
|
91 |
ChunkID = uiChunkID; |
ChunkID = uiChunkID; |
92 |
|
ulChunkDataSize = 0; |
93 |
CurrentChunkSize = 0; |
CurrentChunkSize = 0; |
94 |
NewChunkSize = uiBodySize; |
NewChunkSize = uiBodySize; |
95 |
} |
} |
96 |
|
|
97 |
Chunk::~Chunk() { |
Chunk::~Chunk() { |
98 |
if (CurrentChunkSize != NewChunkSize) pFile->UnlogResized(this); |
if (pFile) pFile->UnlogResized(this); |
99 |
if (pChunkData) delete[] pChunkData; |
if (pChunkData) delete[] pChunkData; |
100 |
} |
} |
101 |
|
|
103 |
#if DEBUG |
#if DEBUG |
104 |
std::cout << "Chunk::Readheader(" << fPos << ") "; |
std::cout << "Chunk::Readheader(" << fPos << ") "; |
105 |
#endif // DEBUG |
#endif // DEBUG |
106 |
|
ChunkID = 0; |
107 |
|
NewChunkSize = CurrentChunkSize = 0; |
108 |
#if POSIX |
#if POSIX |
109 |
if (lseek(pFile->hFileRead, fPos, SEEK_SET) != -1) { |
if (lseek(pFile->hFileRead, fPos, SEEK_SET) != -1) { |
110 |
read(pFile->hFileRead, &ChunkID, 4); |
read(pFile->hFileRead, &ChunkID, 4); |
135 |
} |
} |
136 |
#if DEBUG |
#if DEBUG |
137 |
std::cout << "ckID=" << convertToString(ChunkID) << " "; |
std::cout << "ckID=" << convertToString(ChunkID) << " "; |
138 |
std::cout << "ckSize=" << ChunkSize << " "; |
std::cout << "ckSize=" << CurrentChunkSize << " "; |
139 |
std::cout << "bEndianNative=" << bEndianNative << std::endl; |
std::cout << "bEndianNative=" << pFile->bEndianNative << std::endl; |
140 |
#endif // DEBUG |
#endif // DEBUG |
141 |
NewChunkSize = CurrentChunkSize; |
NewChunkSize = CurrentChunkSize; |
142 |
} |
} |
232 |
#if DEBUG |
#if DEBUG |
233 |
std::cout << "Chunk::Remainingbytes()=" << CurrentChunkSize - ulPos << std::endl; |
std::cout << "Chunk::Remainingbytes()=" << CurrentChunkSize - ulPos << std::endl; |
234 |
#endif // DEBUG |
#endif // DEBUG |
235 |
return CurrentChunkSize - ulPos; |
return (CurrentChunkSize > ulPos) ? CurrentChunkSize - ulPos : 0; |
236 |
} |
} |
237 |
|
|
238 |
/** |
/** |
243 |
* - RIFF::stream_closed : |
* - RIFF::stream_closed : |
244 |
* the data stream was closed somehow, no more reading possible |
* the data stream was closed somehow, no more reading possible |
245 |
* - RIFF::stream_end_reached : |
* - RIFF::stream_end_reached : |
246 |
* alreaady reached the end of the chunk data, no more reading |
* already reached the end of the chunk data, no more reading |
247 |
* possible without SetPos() |
* possible without SetPos() |
248 |
*/ |
*/ |
249 |
stream_state_t Chunk::GetState() { |
stream_state_t Chunk::GetState() { |
281 |
#if DEBUG |
#if DEBUG |
282 |
std::cout << "Chunk::Read(void*,ulong,ulong)" << std::endl; |
std::cout << "Chunk::Read(void*,ulong,ulong)" << std::endl; |
283 |
#endif // DEBUG |
#endif // DEBUG |
284 |
|
if (ulStartPos == 0) return 0; // is only 0 if this is a new chunk, so nothing to read (yet) |
285 |
if (ulPos >= CurrentChunkSize) return 0; |
if (ulPos >= CurrentChunkSize) return 0; |
286 |
if (ulPos + WordCount * WordSize >= CurrentChunkSize) WordCount = (CurrentChunkSize - ulPos) / WordSize; |
if (ulPos + WordCount * WordSize >= CurrentChunkSize) WordCount = (CurrentChunkSize - ulPos) / WordSize; |
287 |
#if POSIX |
#if POSIX |
367 |
#elif defined(WIN32) |
#elif defined(WIN32) |
368 |
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) { |
369 |
throw Exception("Could not seek to position " + ToString(ulPos) + |
throw Exception("Could not seek to position " + ToString(ulPos) + |
370 |
" in chunk (" + ToString(ulStartPos + ulPos) + " in file)"); |
" in chunk (" + ToString(ulStartPos + ulPos) + " in file)"); |
371 |
} |
} |
372 |
DWORD writtenWords; |
DWORD writtenWords; |
373 |
WriteFile(pFile->hFileWrite, pData, WordCount * WordSize, &writtenWords, NULL); |
WriteFile(pFile->hFileWrite, pData, WordCount * WordSize, &writtenWords, NULL); |
734 |
* @see ReleaseChunkData() |
* @see ReleaseChunkData() |
735 |
*/ |
*/ |
736 |
void* Chunk::LoadChunkData() { |
void* Chunk::LoadChunkData() { |
737 |
if (!pChunkData && pFile->Filename != "") { |
if (!pChunkData && pFile->Filename != "" && ulStartPos != 0) { |
738 |
#if POSIX |
#if POSIX |
739 |
if (lseek(pFile->hFileRead, ulStartPos, SEEK_SET) == -1) return NULL; |
if (lseek(pFile->hFileRead, ulStartPos, SEEK_SET) == -1) return NULL; |
740 |
#elif defined(WIN32) |
#elif defined(WIN32) |
861 |
#else |
#else |
862 |
int iBytesMoved = 1; |
int iBytesMoved = 1; |
863 |
#endif |
#endif |
864 |
for (unsigned long ulOffset = 0; iBytesMoved > 0; ulOffset += iBytesMoved, ulToMove -= iBytesMoved) { |
for (unsigned long ulOffset = 0; ulToMove > 0 && iBytesMoved > 0; ulOffset += iBytesMoved, ulToMove -= iBytesMoved) { |
865 |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
866 |
#if POSIX |
#if POSIX |
867 |
lseek(pFile->hFileRead, ulStartPos + ulCurrentDataOffset + ulOffset, SEEK_SET); |
lseek(pFile->hFileRead, ulStartPos + ulCurrentDataOffset + ulOffset, SEEK_SET); |
951 |
#if DEBUG |
#if DEBUG |
952 |
std::cout << "List::~List()" << std::endl; |
std::cout << "List::~List()" << std::endl; |
953 |
#endif // DEBUG |
#endif // DEBUG |
954 |
|
DeleteChunkList(); |
955 |
|
} |
956 |
|
|
957 |
|
void List::DeleteChunkList() { |
958 |
if (pSubChunks) { |
if (pSubChunks) { |
959 |
ChunkList::iterator iter = pSubChunks->begin(); |
ChunkList::iterator iter = pSubChunks->begin(); |
960 |
ChunkList::iterator end = pSubChunks->end(); |
ChunkList::iterator end = pSubChunks->end(); |
963 |
iter++; |
iter++; |
964 |
} |
} |
965 |
delete pSubChunks; |
delete pSubChunks; |
966 |
|
pSubChunks = NULL; |
967 |
|
} |
968 |
|
if (pSubChunksMap) { |
969 |
|
delete pSubChunksMap; |
970 |
|
pSubChunksMap = NULL; |
971 |
} |
} |
|
if (pSubChunksMap) delete pSubChunksMap; |
|
972 |
} |
} |
973 |
|
|
974 |
/** |
/** |
1169 |
pSubChunks->push_back(pNewChunk); |
pSubChunks->push_back(pNewChunk); |
1170 |
(*pSubChunksMap)[uiChunkID] = pNewChunk; |
(*pSubChunksMap)[uiChunkID] = pNewChunk; |
1171 |
pNewChunk->Resize(uiBodySize); |
pNewChunk->Resize(uiBodySize); |
1172 |
|
NewChunkSize += CHUNK_HEADER_SIZE; |
1173 |
|
pFile->LogAsResized(this); |
1174 |
return pNewChunk; |
return pNewChunk; |
1175 |
} |
} |
1176 |
|
|
1206 |
List* pNewListChunk = new List(pFile, this, uiListType); |
List* pNewListChunk = new List(pFile, this, uiListType); |
1207 |
pSubChunks->push_back(pNewListChunk); |
pSubChunks->push_back(pNewListChunk); |
1208 |
(*pSubChunksMap)[CHUNK_ID_LIST] = pNewListChunk; |
(*pSubChunksMap)[CHUNK_ID_LIST] = pNewListChunk; |
1209 |
|
NewChunkSize += LIST_HEADER_SIZE; |
1210 |
|
pFile->LogAsResized(this); |
1211 |
return pNewListChunk; |
return pNewListChunk; |
1212 |
} |
} |
1213 |
|
|
1244 |
std::cout << "List::Readheader(ulong) "; |
std::cout << "List::Readheader(ulong) "; |
1245 |
#endif // DEBUG |
#endif // DEBUG |
1246 |
Chunk::ReadHeader(fPos); |
Chunk::ReadHeader(fPos); |
1247 |
|
if (CurrentChunkSize < 4) return; |
1248 |
NewChunkSize = CurrentChunkSize -= 4; |
NewChunkSize = CurrentChunkSize -= 4; |
1249 |
#if POSIX |
#if POSIX |
1250 |
lseek(pFile->hFileRead, fPos + CHUNK_HEADER_SIZE, SEEK_SET); |
lseek(pFile->hFileRead, fPos + CHUNK_HEADER_SIZE, SEEK_SET); |
1290 |
if (!pSubChunks) { |
if (!pSubChunks) { |
1291 |
pSubChunks = new ChunkList(); |
pSubChunks = new ChunkList(); |
1292 |
pSubChunksMap = new ChunkMap(); |
pSubChunksMap = new ChunkMap(); |
1293 |
|
#if defined(WIN32) |
1294 |
|
if (pFile->hFileRead == INVALID_HANDLE_VALUE) return; |
1295 |
|
#else |
1296 |
if (!pFile->hFileRead) return; |
if (!pFile->hFileRead) return; |
1297 |
|
#endif |
1298 |
unsigned long uiOriginalPos = GetPos(); |
unsigned long uiOriginalPos = GetPos(); |
1299 |
SetPos(0); // jump to beginning of list chunk body |
SetPos(0); // jump to beginning of list chunk body |
1300 |
while (RemainingBytes() >= CHUNK_HEADER_SIZE) { |
while (RemainingBytes() >= CHUNK_HEADER_SIZE) { |
1384 |
// *************** File *************** |
// *************** File *************** |
1385 |
// * |
// * |
1386 |
|
|
1387 |
|
//HACK: to avoid breaking DLL compatibility to older versions of libgig we roll the new std::set<Chunk*> into the old std::list<Chunk*> container, should be replaced on member variable level soon though |
1388 |
|
#define _GET_RESIZED_CHUNKS() \ |
1389 |
|
(reinterpret_cast<std::set<Chunk*>*>(ResizedChunks.front())) |
1390 |
|
|
1391 |
/** @brief Create new RIFF file. |
/** @brief Create new RIFF file. |
1392 |
* |
* |
1393 |
* Use this constructor if you want to create a new RIFF file completely |
* Use this constructor if you want to create a new RIFF file completely |
1394 |
* "from scratch". Note: there must be no empty chunks or empty list |
* "from scratch". Note: there must be no empty chunks or empty list |
1395 |
* chunks when trying to make the new RIFF file persistent with Save()! |
* chunks when trying to make the new RIFF file persistent with Save()! |
1396 |
* |
* |
1397 |
|
* Note: by default, the RIFF file will be saved in native endian |
1398 |
|
* format; that is, as a RIFF file on little-endian machines and |
1399 |
|
* as a RIFX file on big-endian. To change this behaviour, call |
1400 |
|
* SetByteOrder() before calling Save(). |
1401 |
|
* |
1402 |
* @param FileType - four-byte identifier of the RIFF file type |
* @param FileType - four-byte identifier of the RIFF file type |
1403 |
* @see AddSubChunk(), AddSubList() |
* @see AddSubChunk(), AddSubList(), SetByteOrder() |
1404 |
*/ |
*/ |
1405 |
File::File(uint32_t FileType) : List(this) { |
File::File(uint32_t FileType) : List(this) { |
1406 |
|
//HACK: see _GET_RESIZED_CHUNKS() comment |
1407 |
|
ResizedChunks.push_back(reinterpret_cast<Chunk*>(new std::set<Chunk*>)); |
1408 |
#if defined(WIN32) |
#if defined(WIN32) |
1409 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1410 |
#else |
#else |
1425 |
* given RIFF file |
* given RIFF file |
1426 |
*/ |
*/ |
1427 |
File::File(const String& path) : List(this), Filename(path) { |
File::File(const String& path) : List(this), Filename(path) { |
1428 |
#if DEBUG |
#if DEBUG |
1429 |
std::cout << "File::File("<<path<<")" << std::endl; |
std::cout << "File::File("<<path<<")" << std::endl; |
1430 |
#endif // DEBUG |
#endif // DEBUG |
1431 |
bEndianNative = true; |
try { |
1432 |
#if POSIX |
bEndianNative = true; |
1433 |
hFileRead = hFileWrite = open(path.c_str(), O_RDONLY | O_NONBLOCK); |
//HACK: see _GET_RESIZED_CHUNKS() comment |
1434 |
if (hFileRead <= 0) { |
ResizedChunks.push_back(reinterpret_cast<Chunk*>(new std::set<Chunk*>)); |
1435 |
hFileRead = hFileWrite = 0; |
#if POSIX |
1436 |
throw RIFF::Exception("Can't open \"" + path + "\""); |
hFileRead = hFileWrite = open(path.c_str(), O_RDONLY | O_NONBLOCK); |
1437 |
} |
if (hFileRead <= 0) { |
1438 |
#elif defined(WIN32) |
hFileRead = hFileWrite = 0; |
1439 |
hFileRead = hFileWrite = CreateFile( |
throw RIFF::Exception("Can't open \"" + path + "\""); |
1440 |
path.c_str(), GENERIC_READ, |
} |
1441 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
#elif defined(WIN32) |
1442 |
NULL, OPEN_EXISTING, |
hFileRead = hFileWrite = CreateFile( |
1443 |
FILE_ATTRIBUTE_NORMAL, NULL |
path.c_str(), GENERIC_READ, |
1444 |
); |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1445 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
NULL, OPEN_EXISTING, |
1446 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
FILE_ATTRIBUTE_NORMAL | |
1447 |
throw RIFF::Exception("Can't open \"" + path + "\""); |
FILE_FLAG_RANDOM_ACCESS, NULL |
1448 |
|
); |
1449 |
|
if (hFileRead == INVALID_HANDLE_VALUE) { |
1450 |
|
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1451 |
|
throw RIFF::Exception("Can't open \"" + path + "\""); |
1452 |
|
} |
1453 |
|
#else |
1454 |
|
hFileRead = hFileWrite = fopen(path.c_str(), "rb"); |
1455 |
|
if (!hFileRead) throw RIFF::Exception("Can't open \"" + path + "\""); |
1456 |
|
#endif // POSIX |
1457 |
|
Mode = stream_mode_read; |
1458 |
|
ulStartPos = RIFF_HEADER_SIZE; |
1459 |
|
ReadHeader(0); |
1460 |
|
if (ChunkID != CHUNK_ID_RIFF && ChunkID != CHUNK_ID_RIFX) { |
1461 |
|
throw RIFF::Exception("Not a RIFF file"); |
1462 |
|
} |
1463 |
} |
} |
1464 |
#else |
catch (...) { |
1465 |
hFileRead = hFileWrite = fopen(path.c_str(), "rb"); |
Cleanup(); |
1466 |
if (!hFileRead) throw RIFF::Exception("Can't open \"" + path + "\""); |
throw; |
|
#endif // POSIX |
|
|
Mode = stream_mode_read; |
|
|
ulStartPos = RIFF_HEADER_SIZE; |
|
|
ReadHeader(0); |
|
|
if (ChunkID != CHUNK_ID_RIFF) { |
|
|
throw RIFF::Exception("Not a RIFF file"); |
|
1467 |
} |
} |
1468 |
} |
} |
1469 |
|
|
1502 |
Filename.c_str(), GENERIC_READ, |
Filename.c_str(), GENERIC_READ, |
1503 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1504 |
NULL, OPEN_EXISTING, |
NULL, OPEN_EXISTING, |
1505 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1506 |
|
FILE_FLAG_RANDOM_ACCESS, |
1507 |
|
NULL |
1508 |
); |
); |
1509 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
if (hFileRead == INVALID_HANDLE_VALUE) { |
1510 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1532 |
GENERIC_READ | GENERIC_WRITE, |
GENERIC_READ | GENERIC_WRITE, |
1533 |
FILE_SHARE_READ, |
FILE_SHARE_READ, |
1534 |
NULL, OPEN_ALWAYS, |
NULL, OPEN_ALWAYS, |
1535 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1536 |
|
FILE_FLAG_RANDOM_ACCESS, |
1537 |
|
NULL |
1538 |
); |
); |
1539 |
if (hFileRead == INVALID_HANDLE_VALUE) { |
if (hFileRead == INVALID_HANDLE_VALUE) { |
1540 |
hFileRead = hFileWrite = CreateFile( |
hFileRead = hFileWrite = CreateFile( |
1541 |
Filename.c_str(), GENERIC_READ, |
Filename.c_str(), GENERIC_READ, |
1542 |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
FILE_SHARE_READ | FILE_SHARE_WRITE, |
1543 |
NULL, OPEN_EXISTING, |
NULL, OPEN_EXISTING, |
1544 |
FILE_ATTRIBUTE_NORMAL, NULL |
FILE_ATTRIBUTE_NORMAL | |
1545 |
|
FILE_FLAG_RANDOM_ACCESS, |
1546 |
|
NULL |
1547 |
); |
); |
1548 |
throw Exception("Could not (re)open file \"" + Filename + "\" in read mode"); |
throw Exception("Could not (re)open file \"" + Filename + "\" in read+write mode"); |
1549 |
} |
} |
1550 |
#else |
#else |
1551 |
if (hFileRead) fclose(hFileRead); |
if (hFileRead) fclose(hFileRead); |
1579 |
return false; |
return false; |
1580 |
} |
} |
1581 |
|
|
1582 |
|
/** @brief Set the byte order to be used when saving. |
1583 |
|
* |
1584 |
|
* Set the byte order to be used in the file. A value of |
1585 |
|
* endian_little will create a RIFF file, endian_big a RIFX file |
1586 |
|
* and endian_native will create a RIFF file on little-endian |
1587 |
|
* machines and RIFX on big-endian machines. |
1588 |
|
* |
1589 |
|
* @param Endian - endianess to use when file is saved. |
1590 |
|
*/ |
1591 |
|
void File::SetByteOrder(endian_t Endian) { |
1592 |
|
#if WORDS_BIGENDIAN |
1593 |
|
bEndianNative = Endian != endian_little; |
1594 |
|
#else |
1595 |
|
bEndianNative = Endian != endian_big; |
1596 |
|
#endif |
1597 |
|
} |
1598 |
|
|
1599 |
/** @brief Save changes to same file. |
/** @brief Save changes to same file. |
1600 |
* |
* |
1601 |
* Make all changes of all chunks persistent by writing them to the |
* Make all changes of all chunks persistent by writing them to the |
1622 |
|
|
1623 |
// 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) |
1624 |
unsigned long ulPositiveSizeDiff = 0; |
unsigned long ulPositiveSizeDiff = 0; |
1625 |
for (ChunkList::iterator iter = ResizedChunks.begin(), end = ResizedChunks.end(); iter != end; ++iter) { |
std::set<Chunk*>* resizedChunks = _GET_RESIZED_CHUNKS(); |
1626 |
|
for (std::set<Chunk*>::const_iterator iter = resizedChunks->begin(), end = resizedChunks->end(); iter != end; ++iter) { |
1627 |
if ((*iter)->GetNewSize() == 0) { |
if ((*iter)->GetNewSize() == 0) { |
1628 |
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)); |
1629 |
} |
} |
1630 |
if ((*iter)->GetNewSize() + 1L > (*iter)->GetSize()) { |
unsigned long newSizePadded = (*iter)->GetNewSize() + (*iter)->GetNewSize() % 2; |
1631 |
unsigned long ulDiff = (*iter)->GetNewSize() - (*iter)->GetSize() + 1L; // +1 in case we have to add a pad byte |
unsigned long oldSizePadded = (*iter)->GetSize() + (*iter)->GetSize() % 2; |
1632 |
ulPositiveSizeDiff += ulDiff; |
if (newSizePadded > oldSizePadded) ulPositiveSizeDiff += newSizePadded - oldSizePadded; |
|
} |
|
1633 |
} |
} |
1634 |
|
|
1635 |
unsigned long ulWorkingFileSize = GetFileSize(); |
unsigned long ulWorkingFileSize = GetFileSize(); |
1645 |
#if defined(WIN32) |
#if defined(WIN32) |
1646 |
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 |
1647 |
#else |
#else |
1648 |
int iBytesMoved = 1; |
int iBytesMoved = 1; |
1649 |
#endif |
#endif |
1650 |
for (unsigned long ulPos = 0; iBytesMoved > 0; ulPos += iBytesMoved) { |
for (unsigned long ulPos = ulFileSize; iBytesMoved > 0; ) { |
1651 |
const unsigned long ulToMove = ulFileSize - ulPos; |
iBytesMoved = (ulPos < 4096) ? ulPos : 4096; |
1652 |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
ulPos -= iBytesMoved; |
1653 |
#if POSIX |
#if POSIX |
1654 |
lseek(hFileRead, ulPos, SEEK_SET); |
lseek(hFileRead, ulPos, SEEK_SET); |
1655 |
iBytesMoved = read(hFileRead, pCopyBuffer, iBytesMoved); |
iBytesMoved = read(hFileRead, pCopyBuffer, iBytesMoved); |
1679 |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
1680 |
|
|
1681 |
// forget all resized chunks |
// forget all resized chunks |
1682 |
ResizedChunks.clear(); |
resizedChunks->clear(); |
1683 |
} |
} |
1684 |
|
|
1685 |
/** @brief Save changes to another file. |
/** @brief Save changes to another file. |
1712 |
#elif defined(WIN32) |
#elif defined(WIN32) |
1713 |
hFileWrite = CreateFile( |
hFileWrite = CreateFile( |
1714 |
path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, |
path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, |
1715 |
NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL |
NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL | |
1716 |
|
FILE_FLAG_RANDOM_ACCESS, NULL |
1717 |
); |
); |
1718 |
if (hFileWrite == INVALID_HANDLE_VALUE) { |
if (hFileWrite == INVALID_HANDLE_VALUE) { |
1719 |
hFileWrite = hFileRead; |
hFileWrite = hFileRead; |
1736 |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
1737 |
|
|
1738 |
// forget all resized chunks |
// forget all resized chunks |
1739 |
ResizedChunks.clear(); |
_GET_RESIZED_CHUNKS()->clear(); |
1740 |
|
|
1741 |
if (Filename.length() > 0) { |
#if POSIX |
1742 |
#if POSIX |
if (hFileWrite) close(hFileWrite); |
1743 |
close(hFileWrite); |
#elif defined(WIN32) |
1744 |
#elif defined(WIN32) |
if (hFileWrite != INVALID_HANDLE_VALUE) CloseHandle(hFileWrite); |
1745 |
CloseHandle(hFileWrite); |
#else |
1746 |
#else |
if (hFileWrite) fclose(hFileWrite); |
1747 |
fclose(hFileWrite); |
#endif |
1748 |
#endif |
hFileWrite = hFileRead; |
|
hFileWrite = hFileRead; |
|
|
} |
|
1749 |
|
|
1750 |
// associate new file with this File object from now on |
// associate new file with this File object from now on |
1751 |
Filename = path; |
Filename = path; |
1772 |
#if DEBUG |
#if DEBUG |
1773 |
std::cout << "File::~File()" << std::endl; |
std::cout << "File::~File()" << std::endl; |
1774 |
#endif // DEBUG |
#endif // DEBUG |
1775 |
|
Cleanup(); |
1776 |
|
} |
1777 |
|
|
1778 |
|
void File::Cleanup() { |
1779 |
#if POSIX |
#if POSIX |
1780 |
if (hFileRead) close(hFileRead); |
if (hFileRead) close(hFileRead); |
1781 |
#elif defined(WIN32) |
#elif defined(WIN32) |
1783 |
#else |
#else |
1784 |
if (hFileRead) fclose(hFileRead); |
if (hFileRead) fclose(hFileRead); |
1785 |
#endif // POSIX |
#endif // POSIX |
1786 |
|
DeleteChunkList(); |
1787 |
|
pFile = NULL; |
1788 |
|
//HACK: see _GET_RESIZED_CHUNKS() comment |
1789 |
|
delete _GET_RESIZED_CHUNKS(); |
1790 |
} |
} |
1791 |
|
|
1792 |
void File::LogAsResized(Chunk* pResizedChunk) { |
void File::LogAsResized(Chunk* pResizedChunk) { |
1793 |
ResizedChunks.push_back(pResizedChunk); |
_GET_RESIZED_CHUNKS()->insert(pResizedChunk); |
1794 |
} |
} |
1795 |
|
|
1796 |
void File::UnlogResized(Chunk* pResizedChunk) { |
void File::UnlogResized(Chunk* pResizedChunk) { |
1797 |
ResizedChunks.remove(pResizedChunk); |
_GET_RESIZED_CHUNKS()->erase(pResizedChunk); |
1798 |
} |
} |
1799 |
|
|
1800 |
unsigned long File::GetFileSize() { |
unsigned long File::GetFileSize() { |