/// <summary>
/// Determines whether the specified <see cref="System.Object"/> is equal to this instance.
/// </summary>
/// <param name="obj">The <see cref="System.Object"/> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="System.Object"/> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public override bool Equals(object obj)
{
if (!(obj is AsyncToken <T>))
{
return(false);
}
AsyncToken <T> t = (AsyncToken <T>)obj;
return(t.Token.Equals(this.Token));
}
/// <summary>
/// Waits the specified token and with the specified state data.
/// </summary>
/// <param name="token">The asynchronous token.</param>
/// <param name="state">The user defined state data.</param>
public void Wait(AsyncToken <TToken> token, TState state)
{
lock (syncRoot)
{
if (waiter.ContainsKey(token))
{
throw new InvalidProgramException("Invalid async token, the same key already exists.");
}
waiter[token] = state;
}
}
/// <summary>
/// Peeks the specified asynchronous token.
/// </summary>
/// <param name="token">The asynchronous token.</param>
/// <returns>The user defined state data.</returns>
public TState Peek(AsyncToken <TToken> token)
{
lock (syncRoot)
{
if (!waiter.ContainsKey(token))
{
throw new AsyncTokenNotFoundException <TToken>(token);
}
TState state = waiter[token];
return(state);
}
}
/// <summary>
/// The async token can not be found.
/// </summary>
/// <param name="token">Async Token</param>
/// <param name="innerException">Inner exception.</param>
public AsyncTokenNotFoundException(AsyncToken <TToken> token, Exception innerException)
: this("Async token is not found.", innerException)
{
this.Token = token;
}