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message-aggregator.cpp

/**
 * Aggregates individual serialized XML::Events into larger packages 
 * for more efficient delivery
 *
 * Authors:
 * David Yip <yipdw@rose-hulman.edu>
 *
 * Copyright (c) 2005 Authors
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#include <glibmm.h>
#include "jabber_whiteboard/message-aggregator.h"

namespace Inkscape {

namespace Whiteboard {

bool
00021 MessageAggregator::addOne(Glib::ustring const& msg, Glib::ustring& buf)
{
      // 1.  If msg.bytes() > maximum size and the buffer is clear,
      // then we have to send an oversize packet -- 
      // we won't be able to deliver the message any other way.
      // Add it to the buffer and return true.  Any further attempt to 
      // aggregate a message will be handled by condition #2.
      if (msg.bytes() > MessageAggregator::MAX_SIZE && buf.empty()) {
            buf += msg;
            return true;
      }

      // 2.  If msg.bytes() + buf.bytes() > maximum size, return false.
      // The user of this class is responsible for retrieving the aggregated message,
      // doing something with it, clearing the buffer, and trying again.
      // Otherwise, append the message to the buffer and return true.
      if (msg.bytes() + buf.bytes() > MessageAggregator::MAX_SIZE) {
            return false;
      } else {
            buf += msg;
            return true;
      }
}

bool
00046 MessageAggregator::addOne(Glib::ustring const& msg)
{
      return this->addOne(msg, this->_buf);
}

}

}

/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :

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