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#include "bu/file.h"
#include "bu/nids.h"
#include "bu/nidsstream.h"
#include "bu/paramproc.h"
#include <stdlib.h>
typedef struct Block
{
uint32_t uFirstBlock;
uint32_t uNextBlock;
uint32_t uBytesUsed;
} Block;
class Param : public Bu::ParamProc
{
public:
Param( int argc, char *argv[] )
{
addHelpBanner("nidstool - Do stuff with nids files.\n\n");
addParam("info", 'i', mkproc(Param::procInfo),
"Print some info about the file.");
addParam("dump", 'd', mkproc(Param::procDump),
"Dump a stream to a file.");
addParam("analyze", 'a', mkproc(Param::procAnalyze),
"Analyze a nids file.");
addParam("help", 'h', mkproc(Bu::ParamProc::help), "This help.");
process( argc, argv );
}
virtual ~Param()
{
}
void printInfo( Bu::Nids &n )
{
printf("File info:\n");
printf(" Header overhead: %db\n", n.getBlockStart() );
printf(" Block size: %db\n", n.getBlockSize() );
printf(" Block count: %d\n", n.getNumBlocks() );
printf(" Blocks used: %d (%d%%)\n", n.getNumUsedBlocks(),
n.getNumUsedBlocks()*100/n.getNumBlocks() );
printf(" Block overhead: %db\n", n.getBlockOverhead() );
printf(" Block storage: %db (%d%%)\n",
n.getBlockSize()-n.getBlockOverhead(),
(n.getBlockSize()-n.getBlockOverhead())*100/n.getBlockSize() );
}
int procInfo( int argc, char *argv[] )
{
if( argc < 1 )
{
printf("You must provide a file name.\n");
exit( 1 );
}
Bu::File fIn( argv[0], Bu::File::Read );
Bu::Nids n( fIn );
n.initialize();
printInfo( n );
if( argc >= 2 )
{
uint32_t uStream = strtoul( argv[1], NULL, 0 );
uint32_t uBlock = uStream;
Block b;
for(;;)
{
fIn.setPos( n.getBlockStart()+n.getBlockSize()*uBlock );
fIn.read( &b, sizeof(Block) );
printf("Stream %u: block %u, next %u, %ub used.\n",
uStream, uBlock, b.uNextBlock, b.uBytesUsed
);
if( b.uNextBlock == 0xFFFFFFFFUL )
break;
uBlock = b.uNextBlock;
}
printf("Stream End.\n");
return 2;
}
return 1;
}
int procDump( int argc, char *argv[] )
{
if( argc < 3 )
{
printf("You must provide a nids file, a stream id, and an output "
"file.\n");
exit( 1 );
}
Bu::File fIn( argv[0], Bu::File::Read );
Bu::Nids n( fIn );
n.initialize();
int iStream = strtol( argv[1], NULL, 0 );
Bu::NidsStream sIn = n.openStream( iStream );
Bu::File fOut( argv[2], Bu::File::Write|Bu::File::Create );
int iTotal = 0;
char buf[100];
for(;;)
{
int iRead = sIn.read( buf, 100 );
iTotal += fOut.write( buf, iRead );
if( iRead < 100 )
break;
}
printf("Wrote %db from stream %d in %s to %s.\n",
iTotal, iStream, argv[0], argv[2] );
return 3;
}
int procAnalyze( int argc, char *argv[] )
{
if( argc < 1 )
{
printf("You must provide a file name.\n");
exit( 1 );
}
Bu::File fIn( argv[0], Bu::File::Read );
Bu::Nids n( fIn );
n.initialize();
printInfo( n );
int iStreamCnt = 0;
int iStreamTotal = 0;
int iOneBlock = 0;
uint32_t iLargest = 0;
uint32_t iSmallest = 0;
int iWaste = 0;
int iUsable = n.getBlockSize()-n.getBlockOverhead();
Block b;
for( int j = 0; j < n.getNumBlocks(); j++ )
{
fIn.setPos( n.getBlockStart()+n.getBlockSize()*j );
fIn.read( &b, sizeof(Block) );
if( b.uFirstBlock != (uint32_t)j )
continue;
iStreamCnt++;
iStreamTotal += b.uBytesUsed;
if( b.uNextBlock == 0xFFFFFFFFUL )
{
iOneBlock++;
iWaste += iUsable - b.uBytesUsed;
}
else
{
iWaste += iUsable - (b.uBytesUsed%iUsable);
}
if( j == 0 )
{
iSmallest = iLargest = b.uBytesUsed;
}
else
{
if( iLargest < b.uBytesUsed )
iLargest = b.uBytesUsed;
if( iSmallest > b.uBytesUsed )
iSmallest = b.uBytesUsed;
}
}
printf("Steam analysis:\n");
printf(" Stream count: %d\n", iStreamCnt );
printf(" Stream size: %db/%db/%db (min/avr/max)\n",
iSmallest, iStreamTotal/iStreamCnt, iLargest );
printf(" One-block streams: %d (%d%%)\n",
iOneBlock, iOneBlock*100/iStreamCnt );
printf(" Total wasted space: %db (%d%%)\n",
iWaste, iWaste*100/iStreamTotal );
printf(" Avr blocks-per-stream: %f%%\n",
(float)n.getNumBlocks()/(float)iStreamCnt );
return 1;
}
};
int main( int argc, char *argv[] )
{
Param p( argc, argv );
return 0;
}
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