ChannelDataStore.cs

using System.Collections;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;

namespace System.Runtime.Remoting.Channels
{
    [Serializable]
    [SecurityCritical]
    [ComVisible(true)]
    [SecurityPermission(SecurityAction.InheritanceDemand, Flags = SecurityPermissionFlag.Infrastructure)]
    public class ChannelDataStore : IChannelDataStore
    {
        private string[] _channelURIs;

        private DictionaryEntry[] _extraData;

        public string[] ChannelUris
        {
            [SecurityCritical]
            get
            {
                return _channelURIs;
            }
            set
            {
                _channelURIs = value;
            }
        }

        public object this[object key]
        {
            [SecurityCritical]
            get
            {
                DictionaryEntry[] extraData = _extraData;
                for (int i = 0; i < extraData.Length; i++)
                {
                    DictionaryEntry dictionaryEntry = extraData[i];
                    if (dictionaryEntry.Key.Equals(key))
                    {
                        return dictionaryEntry.Value;
                    }
                }
                return null;
            }
            [SecurityCritical]
            set
            {
                if (_extraData == null)
                {
                    _extraData = new DictionaryEntry[1];
                    _extraData[0] = new DictionaryEntry(key, value);
                    return;
                }
                int num = _extraData.Length;
                DictionaryEntry[] array = new DictionaryEntry[num + 1];
                int i;
                for (i = 0; i < num; i++)
                {
                    array[i] = _extraData[i];
                }
                array[i] = new DictionaryEntry(key, value);
                _extraData = array;
            }
        }

        private ChannelDataStore(string[] channelUrls, DictionaryEntry[] extraData)
        {
            _channelURIs = channelUrls;
            _extraData = extraData;
        }

        public ChannelDataStore(string[] channelURIs)
        {
            _channelURIs = channelURIs;
            _extraData = null;
        }

        [SecurityCritical]
        internal ChannelDataStore InternalShallowCopy()
        {
            return new ChannelDataStore(_channelURIs, _extraData);
        }
    }
}