static async Task PostWithDeferralCoreAsync(
this ISynchronizationContext context,
Action action,
uint deferralDepth,
string memberName,
string filePath,
int lineNumber)
{
if (deferralDepth < 1)
{
await context.PostAsync(action, memberName, filePath, lineNumber);
return;
}
await context.PostAsync(
async() =>
{
await PostWithDeferralCoreAsync(
context, action, deferralDepth - 1,
memberName, filePath, lineNumber);
});
}
/// <summary>
/// Invokes the specified action after the specified delay in milliseconds.
/// Note: Be sure to wrap the action code in a try catch,
/// as exceptions raised by the action are not handled.
/// </summary>
/// <param name="context">
/// The context on which the action will be invoked.</param>
/// <param name="action">
/// The action to execute once the delay expires.</param>
/// <param name="delayMs">
/// The time, in milleseconds, to wait before executing the action.</param>
public static async Task PostWithDelayAsync(
this ISynchronizationContext context,
Action action,
int delayMs,
[CallerMemberName] string memberName = null,
[CallerFilePath] string filePath = null,
[CallerLineNumber] int lineNumber = 0)
{
AssertArg.IsNotNull(context, nameof(context));
AssertArg.IsNotNull(action, nameof(action));
AssertArg.IsGreaterThan(-1, delayMs, nameof(delayMs));
if (delayMs >= 0)
{
await Task.Delay(delayMs);
}
await context.PostAsync(
action, memberName, filePath, lineNumber);
}