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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef _MDB_
#include "mdb.h"
#endif

#ifndef _MORK_
#include "mork.h"
#endif

#ifndef _MORKBLOB_
#include "morkBlob.h"
#endif

#ifndef _MORKENV_
#include "morkEnv.h"
#endif


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/*static*/ void
morkBuf::NilBufBodyError(morkEnv* ev)
{
  ev->NewError("nil mBuf_Body");
}

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/*static*/ void
morkBlob::BlobFillOverSizeError(morkEnv* ev)
{
  ev->NewError("mBuf_Fill > mBlob_Size");
}

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mork_bool
morkBlob::GrowBlob(morkEnv* ev, nsIMdbHeap* ioHeap, mork_size inNewSize)
{
  if ( ioHeap )
  {
    if ( !mBuf_Body ) // no body? implies zero sized?
      mBlob_Size = 0;
      
    if ( mBuf_Fill > mBlob_Size ) // fill more than size?
    {
      ev->NewWarning("mBuf_Fill > mBlob_Size");
      mBuf_Fill = mBlob_Size;
    }
      
    if ( inNewSize > mBlob_Size ) // need to allocate larger blob?
    {
      mork_u1* body = 0;
      ioHeap->Alloc(ev->AsMdbEnv(), inNewSize, (void**) &body);
      if ( body && ev->Good() )
      {
        void* oldBody = mBuf_Body;
        if ( mBlob_Size ) // any old content to transfer?
          MORK_MEMCPY(body, oldBody, mBlob_Size);
        
        mBlob_Size = inNewSize; // install new size
        mBuf_Body = body; // install new body
        
        if ( oldBody ) // need to free old buffer body?
          ioHeap->Free(ev->AsMdbEnv(), oldBody);
      }
    }
  }
  else
    ev->NilPointerError();
    
  if ( ev->Good() && mBlob_Size < inNewSize )
    ev->NewError("mBlob_Size < inNewSize");
    
  return ev->Good();
}

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morkCoil::morkCoil(morkEnv* ev, nsIMdbHeap* ioHeap)
{
  mBuf_Body = 0;
  mBuf_Fill = 0;
  mBlob_Size = 0;
  mText_Form = 0;
  mCoil_Heap = ioHeap;
  if ( !ioHeap )
    ev->NilPointerError();
}

void
morkCoil::CloseCoil(morkEnv* ev)
{
  void* body = mBuf_Body;
  nsIMdbHeap* heap = mCoil_Heap;

  mBuf_Body = 0;
  mCoil_Heap = 0;
  
  if ( body && heap )
  {
    heap->Free(ev->AsMdbEnv(), body);
  }
}

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