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#include "LzoCompressor.h"
ACE_RCSID (LZO,
LzoCompressor,
"$Id$")
#include <lzo1x.h>
#include <lzoutil.h>
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
LzoCompressor::LzoCompressor (
::Compression::CompressionLevel compression_level,
::Compression::CompressorFactory_ptr compressor_factory) :
BaseCompressor (compression_level, compressor_factory)
{
}
void
LzoCompressor::compress (
const ::Compression::Buffer & source,
::Compression::Buffer & target
)
{
void* wrkmem = (lzo_bytep) lzo_malloc(LZO1X_1_MEM_COMPRESS);
lzo_uint max_length = static_cast <lzo_uint> (source.length () * 1.1) + 12;
target.length (static_cast <CORBA::ULong> (max_length));
int const retval = ::lzo1x_1_compress (
reinterpret_cast <const unsigned char*>(source.get_buffer ()),
source.length (),
reinterpret_cast <unsigned char*>(target.get_buffer ()),
&max_length,
wrkmem);
lzo_free(wrkmem);
if (retval != LZO_E_OK)
{
throw ::Compression::CompressionException (retval, "");
}
else
{
target.length (static_cast <CORBA::ULong> (max_length));
}
// Update statistics for this compressor
this->update_stats (source.length (), target.length ());
}
void
LzoCompressor::decompress (
const ::Compression::Buffer & source,
::Compression::Buffer & target)
{
lzo_uint max_length = static_cast <lzo_uint> (target.length ());
int const retval = ::lzo1x_decompress (
reinterpret_cast <const unsigned char*>(source.get_buffer ()),
source.length (),
reinterpret_cast <unsigned char*>(target.get_buffer ()),
&max_length,
0);
if (retval != LZO_E_OK)
{
throw ::Compression::CompressionException (retval, "");
}
else
{
target.length (static_cast <CORBA::ULong> (max_length));
}
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
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