/// <summary>
/// Adds a function to be called whenever there are no higher priority
/// events pending. If the function returns <c>false</c> it is automatically
/// removed from the list of event sources and will not be called again.
/// </summary>
/// <remarks>
/// This internally creates a main loop source using <see cref="CreateSource"/>
/// and attaches it to the global <see cref="MainContext"/> using <see cref="Source.Attach"/>, so
/// the callback will be invoked in whichever thread is running that main
/// context. You can do these steps manually if you need greater control or to
/// use a custom main context.
/// </remarks>
/// <param name="function">
/// function to call
/// </param>
/// <param name="priority">
/// the priority of the idle source. Typically this will be in the
/// range between <see cref="Priority.DefaultIdle"/> and <see cref="Priority.HighIdle"/>.
/// </param>
/// <returns>
/// the ID (greater than 0) of the event source.
/// </returns>
public static uint Add(SourceFunc function, int priority = Priority.DefaultIdle)
{
if (function == null)
{
throw new ArgumentNullException(nameof(function));
}
var(function_, notify_, data_) = UnmanagedSourceFuncFactory.CreateNotifyDelegate(function);
var ret = g_idle_add_full(priority, function_, data_, notify_);
return(ret);
}
public static uint AddSeconds(uint interval, SourceFunc function, int priority = Priority.Default)
{
if (function == null)
{
throw new ArgumentNullException(nameof(function));
}
var(function_, notify_, data_) = UnmanagedSourceFuncFactory.CreateNotifyDelegate(function);
var ret = g_timeout_add_seconds_full(priority, interval, function_, data_, notify_);
return(ret);
}
public static uint Add(int priority, int signum, SourceFunc handler)
{
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
var(handler_, notify_, userData_) = UnmanagedSourceFuncFactory.CreateNotifyDelegate(handler);
var ret = g_unix_signal_add_full(priority, signum, handler_, userData_, notify_);
return(ret);
}