trema/trema-edge

/*
 * Copyright (C) 2012-2013 NEC Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */


#include "group_entry.h"


bool
valid_group_id( const uint32_t id ) {
  if ( id > OFPG_MAX ) {
    return false;
  }

  return true;
}


group_entry *
alloc_group_entry( const uint8_t type, const uint32_t group_id, bucket_list *buckets ) {
  if ( !valid_group_id( group_id ) ) {
    error( "Invalid group id ( %#x ).", group_id );
    return NULL;
  }
  if ( !valid_group_type( type ) ) {
    error( "Unsupported or undefined group type ( %#x ).", type );
    return NULL;
  }

  group_entry *entry = xmalloc( sizeof( group_entry ) );
  memset( entry, 0, sizeof( group_entry ) );

  entry->type = type;
  entry->group_id = group_id;
  entry->ref_count = 0;
  entry->packet_count = 0;
  entry->byte_count = 0;
  entry->duration_sec = 0;
  entry->duration_nsec = 0;
  entry->buckets = buckets;
  time_now( &entry->created_at );

  return entry;
}


void
free_group_entry( group_entry *entry ) {
  assert( entry != NULL );

  if ( entry->buckets != NULL ) {
    delete_action_bucket_list( entry->buckets );
  }
  xfree( entry );
}


bool
valid_group_type( const uint8_t type ) {
  bool ret = false;

  switch ( type ) {
    case OFPGT_ALL:
    case OFPGT_SELECT:
    case OFPGT_INDIRECT:
    {
      ret = true;
    }
    break;

    case OFPGT_FF:
    {
      warn( "OFPGT_FF is not supported." );
      ret = false;
    }
    break;

    default:
    {
      ret = false;
    }
    break;
  }

  return ret;
}


void
dump_group_entry( const group_entry *entry, void dump_function( const char *format, ... ) ) {
  assert( entry != NULL );
  assert( dump_function != NULL );

  ( *dump_function )( "[group entry ( %p )]", entry );
  const char *name = "UNDEFINED";
  switch ( entry->type ) {
    case OFPGT_ALL:
      name = "ALL";
      break;
    case OFPGT_SELECT:
      name = "SELECT";
      break;
    case OFPGT_INDIRECT:
      name = "INDIRECT";
      break;
    case OFPGT_FF:
      name = "FF";
      break;
  }
  ( *dump_function )( "type: %s ( %u )", name, entry->type );
  ( *dump_function )( "group_id: %#x", entry->group_id );
  ( *dump_function )( "ref_count: %u", entry->ref_count );
  ( *dump_function )( "packet_count: %" PRIu64, entry->packet_count );
  ( *dump_function )( "byte_count: %" PRIu64, entry->byte_count );
  ( *dump_function )( "duration: %u.%09u", entry->duration_sec, entry->duration_nsec );
  ( *dump_function )( "buckets: %p", entry->buckets );
  if ( entry->buckets != NULL ) {
    dump_buckets( entry->buckets, dump_function );
  }
  ( *dump_function )( "created_at: %d.%09d", ( int ) entry->created_at.tv_sec, ( int ) entry->created_at.tv_nsec );
}


/*
 * Local variables:
 * c-basic-offset: 2
 * indent-tabs-mode: nil
 * End:
 */