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// vim: syntax=cpp
/*
* Copyright (C) 2007-2010 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#include "bu/fstring.h"
#include "bu/file.h"
#include "bu/myriad.h"
#include "bu/myriadstream.h"
#include "bu/array.h"
#include "bu/sio.h"
#include <stdlib.h>
using namespace Bu;
suite Myriad
{
void addBlock( Stream &s )
{
s.setPosEnd( 0 );
int iSize = (random()%1016)+8;
s.write( &iSize, 4 );
char *buf = new char[iSize-8];
for( int j = 0; j < iSize-8; j++ )
{
buf[j] = (j+iSize)%256;
}
s.write( buf, iSize-8 );
delete[] buf;
iSize = ~iSize;
s.write( &iSize, 4 );
}
void verifyBlock( Stream &s )
{
int iSize, iInv;
if( s.read( &iSize, 4 ) == 0 )
return;
if( iSize < 8 || iSize > 1024 )
throw ExceptionBase("Read bad data, %d", iSize );
char *buf = new char[iSize-8];
if( s.read( buf, iSize-8 ) < (size_t)iSize-8 )
{
delete[] buf;
throw ExceptionBase("Block failed verify (insuffient block data).");
}
for( int j = 0; j < iSize-8; j++ )
{
if( buf[j] != (char)((j+iSize)%256) )
{
char b = buf[j];
delete[] buf;
throw ExceptionBase("Block failed computed data verify (%02X==%02X).", b, (char)((j+iSize)%256) );
}
}
delete[] buf;
if( s.read( &iInv, 4 ) < 4 )
throw ExceptionBase("Block failed verify (insufficient data).");
if( iInv != ~iSize )
throw ExceptionBase("Block failed inversion verify.");
}
void verifyStream( Stream &s )
{
s.setPos( 0 );
while( !s.isEos() )
verifyBlock( s );
}
test grow1
{
FString sFileName("myriad-XXXXXXX");
File::tempFile( sFileName );
File fMyriad( sFileName, File::WriteNew|File::Read );
Myriad m( fMyriad );
m.initialize( 64 );
Array<int> aStreams;
for( int j = 0; j < 5; j++ )
{
aStreams.append( m.createStream() );
}
srandom( 512 );
for( int j = 0; j < 2500; j++ )
{
switch( random()%5 )
{
case 0:
aStreams.append( m.createStream() );
break;
case 1:
if( aStreams.getSize() > 0 )
{
int iStream = random()%aStreams.getSize();
{
MyriadStream ms = m.openStream( aStreams[iStream] );
verifyStream( ms );
}
m.deleteStream( aStreams[iStream] );
Array<int>::iterator i = aStreams.begin();
for( int k = 0; k < iStream; k++ )
i++;
aStreams.erase( i );
}
break;
default:
if( aStreams.getSize() == 0 )
{
aStreams.append( m.createStream() );
}
{
int iStream = random()%aStreams.getSize();
MyriadStream ms = m.openStream( aStreams[iStream] );
addBlock( ms );
verifyStream( ms );
}
break;
}
}
for( Array<int>::iterator i = aStreams.begin(); i; i++ )
{
MyriadStream ms = m.openStream( *i );
verifyStream( ms );
}
}
}
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