// Renamed to conform to Microsoft's guidelines.
public static async Task <Sync> AcquireAsync(TimeSpan releaseAfter)
{
var sync = new Sync();
await Semaphore.WaitAsync().ConfigureAwait(false);
try
{
return(sync);
}
finally
{
// Fire-and-forget, not awaited.
sync.DelayedRelease(releaseAfter);
}
}
public static async Task <Sync> Acquire(TimeSpan releaseAfter)
{
// State = -1: Disposing sync won't release the semaphore.
var sync = new Sync();
await Semaphore.WaitAsync().ConfigureAwait(false);
try
{
// State = 0: Call to sync.Dispose() will release the semaphore
// unless it has already transisioned to State = 1 via ReleaseOnce by then.
sync.State = 0;
return(sync);
}
finally
{
// Not awaited.
sync.DelayedRelease(releaseAfter);
}
}
public static async Task <Sync> AcquireAsync(TimeSpan releaseAfter)
{
// State = -1: Disposing sync won't release the semaphore.
// In case we are unable to enter the semaphore the newly
// created Sync instance won't call Release unnecessarily
// when disposed.
var sync = new Sync();
await Semaphore.WaitAsync().ConfigureAwait(false);
try
{
// State = 0: from here on sync.Dispose will call
// Semaphore.Release (until the Sync instance has
// transisions to State = 1 via ReleaseOnce).
sync.State = 0;
return(sync);
}
finally
{
// Not awaited.
sync.DelayedRelease(releaseAfter);
}
}
