ComputeMsg.cc

/*
 * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
 * This software is released under the modified BSD license.
 * See the file LICENSE in the top-level directory for details.
 */
//
// $Id: ComputeMsg.cc,v 1.3 2004/05/19 15:56:23 mmarsh Exp $
//
// $Log: ComputeMsg.cc,v $
// Revision 1.3  2004/05/19 15:56:23  mmarsh
// Added copyright and license statements.
//
// Revision 1.2  2003/11/04 22:31:45  mmarsh
// *** empty log message ***
//
//

#include "Message.h"

using namespace CODEX_APSS;

ComputeMsg::ComputeMsg() :
   Message( false )
{
}

ComputeMsg::ComputeMsg( const CODEX_ASN1::Integer& coordinator,
                        const SublabelType subshareLabels[ NumShares ] ) :
   Message( true ),
   m_coordinator( coordinator )
{
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      m_subshareLabels[count] = subshareLabels[count];
   }
}

ComputeMsg::ComputeMsg( const ComputeMsg& aOther ) :
   Message( aOther.m_initialized ),
   m_coordinator( aOther.m_coordinator )
{
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      m_subshareLabels[count] = aOther.m_subshareLabels[count];
   }
}

void
ComputeMsg::operator=( const ComputeMsg& aOther )
{
   m_initialized = aOther.m_initialized;
   m_coordinator = aOther.m_coordinator;
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      m_subshareLabels[count] = aOther.m_subshareLabels[count];
   }
}

int
ComputeMsg::marshal( unsigned char ** pp ) const
{
   int r=0;
   int ret=0;
   unsigned char * p;

   ret += m_coordinator.marshal(0);
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      ret += m_subshareLabels[count].marshal(0);
   }
   M_ASN1_I2D_seq_total();
   m_coordinator.marshal(&p);
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      m_subshareLabels[count].marshal(&p);
   }
   M_ASN1_I2D_finish();
}

void*
ComputeMsg::unmarshal( void* bogus, unsigned char ** pp, long length )
{
   if ( m_initialized )
   {
      return NULL;
   }
   if ( (NULL == pp) || (NULL == *pp) )
   {
      return NULL;
   }
   ASN1_CTX c;
   c.pp = pp;
   c.q = *pp;
   c.error = ERR_R_NESTED_ASN1_ERROR;
   int i;

   M_ASN1_D2I_Init();
   M_ASN1_D2I_start_sequence();
   M_ASN1_D2I_get(i, m_coordinator.unmarshal);
   for ( unsigned int count = 0 ; count < NumShares ; ++count )
   {
      M_ASN1_D2I_get(i, m_subshareLabels[count].unmarshal);
   }
   if ( !asn1_Finish(&c) )
   {
      return NULL;
   }
   *pp=c.p;
   m_initialized = true;
   return this;
  err: // needed by ASN.1 macros
   return NULL;
}

---