Changed: Centralize BNP unpacking and packing methods, to be reused in other tools/programs
This commit is contained in:
kervala
parent
94b033caf9
commit
9d319a5688
2 changed files with 445 additions and 162 deletions
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@ -20,7 +20,7 @@
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#include "types_nl.h"
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#include "tds.h"
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#include "singleton.h"
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#include "callback.h"
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namespace NLMISC {
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@ -86,6 +86,66 @@ public:
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// Used for CPath only for the moment !
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char *getFileNamePtr(const std::string &sFileName, const std::string &sBigFileName);
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typedef CCallback<bool /* continue */, const std::string &/* filename */, uint32 /* currentSize */, uint32 /* totalSize */> TUnpackProgressCallback;
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// Unpack all files in sBigFileName to sDestDir and send progress notifications to optional callback
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static bool unpack(const std::string &sBigFileName, const std::string &sDestDir, TUnpackProgressCallback *callback = NULL);
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// A BNPFile header (filename is a char* pointing on FileNames and is always lowercase)
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struct BNPFile
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{
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BNPFile() : Name(NULL), Size(0), Pos(0) { }
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char* Name;
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uint32 Size;
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uint32 Pos;
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};
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// A SBNPFile header (filename is a std::string and keeps the original case)
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struct SBNPFile
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{
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SBNPFile() : Size(0), Pos(0) { }
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std::string Name;
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uint32 Size;
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uint32 Pos;
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};
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// A BNP structure
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struct BNP
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{
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BNP() : FileNames(NULL), ThreadFileId(0), CacheFileOnOpen(false), AlwaysOpened(false), InternalUse(false), OffsetFromBeginning(0) { }
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// FileName of the BNP. important to open it in getFile() (for other threads or if not always opened).
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std::string BigFileName;
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// map of files in the BNP.
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char *FileNames;
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std::vector<BNPFile> Files;
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std::vector<SBNPFile> SFiles;
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// Since many seek may be done on a FILE*, each thread should have its own FILE opened.
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uint32 ThreadFileId;
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bool CacheFileOnOpen;
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bool AlwaysOpened;
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bool InternalUse;
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// Offset written in BNP header
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uint32 OffsetFromBeginning;
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// Read BNP header from FILE* and init member variables
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bool readHeader(FILE* file);
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// Read BNP header from BigFileName and init member variables
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bool readHeader();
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// Append BNP header to the big file BigFileName (to use after appendFile calls)
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bool appendHeader();
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// Append a file to BigFileName
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bool appendFile(const std::string &filename);
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// Unpack BigFileName to sDestDir and send progress notifications to optional callback
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bool unpack(const std::string &sDestDir, TUnpackProgressCallback *callback = NULL);
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};
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// ***************
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private:
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class CThreadFileArray;
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@ -118,38 +178,6 @@ private:
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uint32 _CurrentId;
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};
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// A BNPFile header
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struct BNPFile
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{
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BNPFile() : Name(NULL), Size(0), Pos(0) { }
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char *Name;
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uint32 Size;
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uint32 Pos;
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};
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struct CBNPFileComp
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{
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bool operator()(const BNPFile &f, const BNPFile &s )
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{
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return strcmp( f.Name, s.Name ) < 0;
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}
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};
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// A BNP structure
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struct BNP
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{
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BNP() : FileNames(NULL) { }
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// FileName of the BNP. important to open it in getFile() (for other threads or if not always opened).
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std::string BigFileName;
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// map of files in the BNP.
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char *FileNames;
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std::vector<BNPFile> Files;
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// Since many seek may be done on a FILE*, each thread should have its own FILE opened.
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uint32 ThreadFileId;
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bool CacheFileOnOpen;
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bool AlwaysOpened;
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};
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private:
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// CBigFile(); // Singleton mode -> access it with the getInstance function
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@ -16,6 +16,7 @@
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#include "stdmisc.h"
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#include "nel/misc/file.h"
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#include "nel/misc/big_file.h"
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#include "nel/misc/path.h"
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@ -138,141 +139,17 @@ bool CBigFile::add (const std::string &sBigFileName, uint32 nOptions)
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handle.File = fopen (sBigFileName.c_str(), "rb");
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if (handle.File == NULL)
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return false;
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uint32 nFileSize=CFile::getFileSize (handle.File);
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//nlfseek64 (handle.File, 0, SEEK_END);
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//uint32 nFileSize = ftell (handle.File);
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// Result
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if (nlfseek64 (handle.File, nFileSize-4, SEEK_SET) != 0)
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// Used internally by CBigFile, use optimizations and lower case of filenames
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bnp.InternalUse = true;
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// read BNP header
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if (!bnp.readHeader(handle.File))
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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uint32 nOffsetFromBeginning;
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if (fread (&nOffsetFromBeginning, sizeof(uint32), 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nOffsetFromBeginning);
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#endif
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if (nlfseek64 (handle.File, nOffsetFromBeginning, SEEK_SET) != 0)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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// Read the file count
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uint32 nNbFile;
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if (fread (&nNbFile, sizeof(uint32), 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nNbFile);
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#endif
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map<string,BNPFile> tempMap;
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for (uint32 i = 0; i < nNbFile; ++i)
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{
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char FileName[256];
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uint8 nStringSize;
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if (fread (&nStringSize, 1, 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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if (fread (FileName, nStringSize, 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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FileName[nStringSize] = 0;
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uint32 nFileSize2;
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if (fread (&nFileSize2, sizeof(uint32), 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFileSize2);
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#endif
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uint32 nFilePos;
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if (fread (&nFilePos, sizeof(uint32), 1, handle.File) != 1)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFilePos);
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#endif
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BNPFile bnpfTmp;
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bnpfTmp.Pos = nFilePos;
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bnpfTmp.Size = nFileSize2;
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tempMap.insert (make_pair(toLower(string(FileName)), bnpfTmp));
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}
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if (nlfseek64 (handle.File, 0, SEEK_SET) != 0)
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{
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fclose (handle.File);
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handle.File = NULL;
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return false;
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}
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// Convert temp map
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if (nNbFile > 0)
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{
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uint nSize = 0, nNb = 0;
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map<string,BNPFile>::iterator it = tempMap.begin();
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while (it != tempMap.end())
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{
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nSize += (uint)it->first.size() + 1;
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nNb++;
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it++;
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}
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bnp.FileNames = new char[nSize];
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memset(bnp.FileNames, 0, nSize);
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bnp.Files.resize(nNb);
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it = tempMap.begin();
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nSize = 0;
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nNb = 0;
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while (it != tempMap.end())
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{
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strcpy(bnp.FileNames+nSize, it->first.c_str());
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bnp.Files[nNb].Name = bnp.FileNames+nSize;
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bnp.Files[nNb].Size = it->second.Size;
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bnp.Files[nNb].Pos = it->second.Pos;
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nSize += (uint)it->first.size() + 1;
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nNb++;
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it++;
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}
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}
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// End of temp map conversion
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if (nOptions&BF_CACHE_FILE_ON_OPEN)
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bnp.CacheFileOnOpen = true;
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else
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@ -314,6 +191,369 @@ void CBigFile::remove (const std::string &sBigFileName)
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}
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}
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//// ***************************************************************************
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bool CBigFile::BNP::readHeader()
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{
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// Only external use
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if (InternalUse || BigFileName.empty()) return false;
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FILE *f = fopen (BigFileName.c_str(), "rb");
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if (f == NULL) return false;
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bool res = readHeader(f);
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fclose (f);
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return res;
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}
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//// ***************************************************************************
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bool CBigFile::BNP::readHeader(FILE *file)
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{
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if (file == NULL) return false;
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uint32 nFileSize=CFile::getFileSize (file);
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// Result
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if (nlfseek64 (file, nFileSize-4, SEEK_SET) != 0)
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{
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return false;
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}
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if (fread (&OffsetFromBeginning, sizeof(uint32), 1, file) != 1)
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{
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(OffsetFromBeginning);
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#endif
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if (nlfseek64 (file, OffsetFromBeginning, SEEK_SET) != 0)
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{
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return false;
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}
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// Read the file count
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uint32 nNbFile;
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if (fread (&nNbFile, sizeof(uint32), 1, file) != 1)
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{
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nNbFile);
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#endif
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map<string, BNPFile> tempMap;
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if (!InternalUse) SFiles.clear();
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for (uint32 i = 0; i < nNbFile; ++i)
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{
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uint8 nStringSize;
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if (fread (&nStringSize, 1, 1, file) != 1)
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{
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return false;
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}
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char sFileName[256];
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if (fread (sFileName, 1, nStringSize, file) != nStringSize)
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{
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return false;
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}
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sFileName[nStringSize] = 0;
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uint32 nFileSize2;
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if (fread (&nFileSize2, sizeof(uint32), 1, file) != 1)
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{
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFileSize2);
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#endif
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uint32 nFilePos;
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if (fread (&nFilePos, sizeof(uint32), 1, file) != 1)
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{
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return false;
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}
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFilePos);
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#endif
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if (InternalUse)
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{
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BNPFile bnpfTmp;
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bnpfTmp.Pos = nFilePos;
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bnpfTmp.Size = nFileSize2;
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tempMap.insert (make_pair(toLower(string(sFileName)), bnpfTmp));
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}
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else
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{
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SBNPFile bnpfTmp;
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bnpfTmp.Name = sFileName;
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bnpfTmp.Pos = nFilePos;
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bnpfTmp.Size = nFileSize2;
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SFiles.push_back(bnpfTmp);
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}
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}
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if (nlfseek64 (file, 0, SEEK_SET) != 0)
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{
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return false;
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}
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// Convert temp map
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if (InternalUse && nNbFile > 0)
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{
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uint nSize = 0, nNb = 0;
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map<string,BNPFile>::iterator it = tempMap.begin();
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while (it != tempMap.end())
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{
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nSize += (uint)it->first.size() + 1;
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nNb++;
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it++;
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}
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FileNames = new char[nSize];
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memset(FileNames, 0, nSize);
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Files.resize(nNb);
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it = tempMap.begin();
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nSize = 0;
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nNb = 0;
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while (it != tempMap.end())
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{
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strcpy(FileNames+nSize, it->first.c_str());
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Files[nNb].Name = FileNames+nSize;
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Files[nNb].Size = it->second.Size;
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Files[nNb].Pos = it->second.Pos;
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nSize += (uint)it->first.size() + 1;
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nNb++;
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it++;
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}
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}
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// End of temp map conversion
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return true;
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}
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bool CBigFile::BNP::appendHeader()
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{
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// Only external use
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if (InternalUse || BigFileName.empty()) return false;
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FILE *f = fopen (BigFileName.c_str(), "ab");
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if (f == NULL) return false;
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uint32 nNbFile = (uint32)SFiles.size();
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// value to be serialized
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uint32 nNbFile2 = nNbFile;
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nNbFile2);
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#endif
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if (fwrite (&nNbFile2, sizeof(uint32), 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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for (uint32 i = 0; i < nNbFile; ++i)
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{
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uint8 nStringSize = (uint8)SFiles[i].Name.length();
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if (fwrite (&nStringSize, 1, 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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if (fwrite (SFiles[i].Name.c_str(), 1, nStringSize, f) != nStringSize)
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{
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fclose(f);
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return false;
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}
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uint32 nFileSize = SFiles[i].Size;
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFileSize);
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#endif
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if (fwrite (&nFileSize, sizeof(uint32), 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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uint32 nFilePos = SFiles[i].Pos;
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nFilePos);
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#endif
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if (fwrite (&nFilePos, sizeof(uint32), 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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}
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uint32 nOffsetFromBeginning = OffsetFromBeginning;
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#ifdef NL_BIG_ENDIAN
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NLMISC_BSWAP32(nOffsetFromBeginning);
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#endif
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if (fwrite (&nOffsetFromBeginning, sizeof(uint32), 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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fclose (f);
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return true;
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}
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// ***************************************************************************
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bool CBigFile::BNP::appendFile(const std::string &filename)
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{
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// Only external use
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if (InternalUse || BigFileName.empty()) return false;
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// Check if we can read the source file
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if (!CFile::fileExists(filename)) return false;
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SBNPFile ftmp;
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ftmp.Name = CFile::getFilename(filename);
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ftmp.Size = CFile::getFileSize(filename);
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ftmp.Pos = OffsetFromBeginning;
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SFiles.push_back(ftmp);
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OffsetFromBeginning += ftmp.Size;
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FILE *f1 = fopen(BigFileName.c_str(), "ab");
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if (f1 == NULL) return false;
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FILE *f2 = fopen(filename.c_str(), "rb");
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if (f2 == NULL)
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{
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fclose(f1);
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return false;
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}
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|
||||
uint8 *ptr = new uint8[ftmp.Size];
|
||||
|
||||
if (fread (ptr, ftmp.Size, 1, f2) != 1)
|
||||
{
|
||||
nlwarning("%s read error", filename.c_str());
|
||||
}
|
||||
else if (fwrite (ptr, ftmp.Size, 1, f1) != 1)
|
||||
{
|
||||
nlwarning("%s write error", BigFileName.c_str());
|
||||
}
|
||||
|
||||
delete [] ptr;
|
||||
|
||||
fclose(f2);
|
||||
fclose(f1);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// ***************************************************************************
|
||||
bool CBigFile::BNP::unpack(const std::string &sDestDir, TUnpackProgressCallback *callback)
|
||||
{
|
||||
// Only external use
|
||||
if (InternalUse || BigFileName.empty()) return false;
|
||||
|
||||
FILE *bnp = fopen (BigFileName.c_str(), "rb");
|
||||
if (bnp == NULL)
|
||||
return false;
|
||||
|
||||
// only read header is not already read
|
||||
if (SFiles.empty() && !readHeader(bnp))
|
||||
{
|
||||
fclose (bnp);
|
||||
return false;
|
||||
}
|
||||
|
||||
CFile::createDirectory(sDestDir);
|
||||
|
||||
uint32 totalUncompressed = 0, total = 0;
|
||||
|
||||
for (uint32 i = 0; i < SFiles.size(); ++i)
|
||||
{
|
||||
total += SFiles[i].Size;
|
||||
}
|
||||
|
||||
FILE *out = NULL;
|
||||
|
||||
for (uint32 i = 0; i < SFiles.size(); ++i)
|
||||
{
|
||||
const SBNPFile &rBNPFile = SFiles[i];
|
||||
string filename = CPath::standardizePath(sDestDir) + rBNPFile.Name;
|
||||
|
||||
if (callback && !(*callback)(filename, totalUncompressed, total))
|
||||
{
|
||||
fclose (bnp);
|
||||
return false;
|
||||
}
|
||||
|
||||
out = fopen (filename.c_str(), "wb");
|
||||
if (out != NULL)
|
||||
{
|
||||
nlfseek64 (bnp, rBNPFile.Pos, SEEK_SET);
|
||||
uint8 *ptr = new uint8[rBNPFile.Size];
|
||||
bool readError = fread (ptr, rBNPFile.Size, 1, bnp) != 1;
|
||||
if (readError)
|
||||
{
|
||||
nlwarning("%s read error errno = %d: %s", filename.c_str(), errno, strerror(errno));
|
||||
}
|
||||
bool writeError = fwrite (ptr, rBNPFile.Size, 1, out) != 1;
|
||||
if (writeError)
|
||||
{
|
||||
nlwarning("%s write error errno = %d: %s", filename.c_str(), errno, strerror(errno));
|
||||
}
|
||||
bool diskFull = ferror(out) && errno == 28 /* ENOSPC*/;
|
||||
fclose (out);
|
||||
delete [] ptr;
|
||||
if (diskFull)
|
||||
{
|
||||
fclose (bnp);
|
||||
throw NLMISC::EDiskFullError(filename);
|
||||
}
|
||||
if (writeError)
|
||||
{
|
||||
fclose (bnp);
|
||||
throw NLMISC::EWriteError(filename);
|
||||
}
|
||||
if (readError)
|
||||
{
|
||||
fclose (bnp);
|
||||
throw NLMISC::EReadError(filename);
|
||||
}
|
||||
}
|
||||
|
||||
totalUncompressed += rBNPFile.Size;
|
||||
|
||||
if (callback && !(*callback)(filename, totalUncompressed, total))
|
||||
{
|
||||
fclose (bnp);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
fclose (bnp);
|
||||
return true;
|
||||
}
|
||||
|
||||
// ***************************************************************************
|
||||
bool CBigFile::isBigFileAdded(const std::string &sBigFileName) const
|
||||
{
|
||||
|
|
@ -359,6 +599,14 @@ void CBigFile::removeAll ()
|
|||
}
|
||||
}
|
||||
|
||||
struct CBNPFileComp
|
||||
{
|
||||
bool operator()(const CBigFile::BNPFile &f, const CBigFile::BNPFile &s )
|
||||
{
|
||||
return strcmp( f.Name, s.Name ) < 0;
|
||||
}
|
||||
};
|
||||
|
||||
// ***************************************************************************
|
||||
bool CBigFile::getFileInternal (const std::string &sFileName, BNP *&zeBnp, BNPFile *&zeBnpFile)
|
||||
{
|
||||
|
|
@ -504,5 +752,12 @@ void CBigFile::getBigFilePaths(std::vector<std::string> &bigFilePaths)
|
|||
}
|
||||
}
|
||||
|
||||
// ***************************************************************************
|
||||
bool CBigFile::unpack(const std::string &sBigFileName, const std::string &sDestDir, TUnpackProgressCallback *callback)
|
||||
{
|
||||
BNP bnpFile;
|
||||
bnpFile.BigFileName = sBigFileName;
|
||||
return bnpFile.unpack(sDestDir, callback);
|
||||
}
|
||||
|
||||
} // namespace NLMISC
|
||||
|
|
|
|||
Loading…
Reference in a new issue