void KBzip2Filter::terminate()
{
if ( m_mode == IO_ReadOnly )
{
int result = bzDecompressEnd(&d->zStream);
kdDebug(7118) << "bzDecompressEnd returned " << result << endl;
} else if ( m_mode == IO_WriteOnly )
{
int result = bzCompressEnd(&d->zStream);
kdDebug(7118) << "bzCompressEnd returned " << result << endl;
} else
kdWarning(7118) << "Unsupported mode " << m_mode << ". Only IO_ReadOnly and IO_WriteOnly supported" << endl;
}
Compressor::~Compressor()
// The deconstructor
{
if(isinitialized)
// We finish compression, if there has been some data in the queue
{
#ifdef USE_BZIP
bzCompressEnd(&state);
#else
deflateEnd(&state);
#endif
// deflateReset(&state);
isinitialized=0;
}
}
bool KBzip2Filter::terminate()
{
if (d->mode == QIODevice::ReadOnly) {
const int result = bzDecompressEnd(&d->zStream);
if (result != BZ_OK) {
//qDebug() << "bzDecompressEnd returned " << result;
return false;
}
} else if (d->mode == QIODevice::WriteOnly) {
const int result = bzCompressEnd(&d->zStream);
if (result != BZ_OK) {
//qDebug() << "bzCompressEnd returned " << result;
return false;
}
} else {
//qWarning() << "Unsupported mode " << d->mode << ". Only QIODevice::ReadOnly and QIODevice::WriteOnly supported";
return false;
}
d->isInitialized = false;
return true;
}
void Compressor::FinishCompress(unsigned long *uncompressedsize,unsigned long *compressedsize)
// Finishes the compression and stores the input data size and
// the output data size in 'uncompressedsize' and 'compressedsize'
{
char err;
int saveavail;
do
{
// Let's get more space in the output buffer
#ifdef USE_BZIP
state.next_out=output->GetBufPtr((int *)&state.avail_out);
#else
state.next_out=(unsigned char *)output->GetBufPtr((int *)&state.avail_out);
#endif
saveavail=state.avail_out;
#ifdef USE_BZIP
err=bzCompress(&state,BZ_FINISH);
#else
err=deflate(&state,Z_FINISH);
#endif
output->SaveBytes(saveavail-state.avail_out);
#ifdef USE_BZIP
if(err==BZ_STREAM_END)
break;
if(err!=BZ_FINISH_OK)
#else
if(err==Z_STREAM_END)
break;
if(err!=Z_OK)
#endif
{
Error("Error while compressing container!");
Exit();
}
// Z_OK means that the output buffer is full ! ==> We flush
output->Flush();
}
while(1);
// Let's store the input and output size
if(uncompressedsize!=NULL) *uncompressedsize =state.total_in;
if(compressedsize!=NULL) *compressedsize =state.total_out;
state.total_out=0;
state.total_in=0;
// Finally, we release the internal memory
#ifdef USE_BZIP
if(bzCompressEnd(&state)!=BZ_OK)
#else
if(deflateReset(&state)!=Z_OK)
#endif
{
Error("Error while compressing container!");
Exit();
}
#ifdef USE_BZIP
// bzip must be reinitialized
isinitialized=0;
#endif
}