public async Task <Response> Set(uint?cookie, byte[] data, uint?flag, TimeSpan?time, CancellationToken cancellationToken)
{
logger.Verbose("Set operation for {StateId} with {DataSize} bytes of data.", id, data?.Length);
var r = new Response();
var(l, c) = await store.GetLockAsync(id, cancellationToken);
var(d, f, t, m) = await store.GetDataAsync(id, cancellationToken);
// expire session if required
if ((m + t) - DateTime.UtcNow < TimeSpan.Zero)
{
await store.RemoveLockAsync(id, cancellationToken);
await store.RemoveDataAsync(id, cancellationToken);
// reload current state
(l, c) = await store.GetLockAsync(id, cancellationToken);
(d, f, t, m) = await store.GetDataAsync(id, cancellationToken);
}
// no data sent
if (data == null)
{
r.Status = ResponseStatus.BadRequest;
return(r);
}
// return lock information if present
if (l != null)
{
r.LockCookie = l;
r.LockTime = c;
r.LockAge = DateTime.UtcNow - r.LockTime;
}
// flag is set
if (d != null && flag == 1)
{
r.Status = ResponseStatus.Ok;
return(r);
}
// data exists and is locked
if (d != null && l != null && l != cookie)
{
r.Status = ResponseStatus.Locked;
return(r);
}
// save new data
await store.SetDataAsync(id, data, flag, time, cancellationToken);
(d, f, t, m) = await store.GetDataAsync(id, cancellationToken);
r.Status = ResponseStatus.Ok;
r.Timeout = (m + t) - DateTime.UtcNow;
// ensure we auto expire
if (r.Timeout > TimeSpan.Zero)
{
await store.SetTimeoutAsync(id, r.Timeout, cancellationToken);
}
return(r);
}
public async Task <Response> Set(uint?cookie, byte[] data, uint?flag, TimeSpan?time)
{
var r = new Response();
var(l, c) = await store.GetLockAsync(id);
var(d, f, t, u) = await store.GetDataAsync(id);
// expire session if required
if ((u + t) - DateTime.Now < TimeSpan.Zero)
{
await store.RemoveLockAsync(id);
await store.RemoveDataAsync(id);
// reload current state
(l, c) = await store.GetLockAsync(id);
(d, f, t, u) = await store.GetDataAsync(id);
}
// no data sent
if (data == null)
{
r.Status = ResponseStatus.BadRequest;
return(r);
}
// return lock information if present
if (l != null)
{
r.LockCookie = l;
r.LockTime = c;
r.LockAge = DateTime.Now - r.LockTime;
}
// flag is set
if (d != null && flag == 1)
{
r.Status = ResponseStatus.Ok;
return(r);
}
// data exists and is locked
if (d != null && l != null && l != cookie)
{
r.Status = ResponseStatus.Locked;
return(r);
}
// save new data
await store.SetDataAsync(id, data, flag, time);
(d, f, t, u) = await store.GetDataAsync(id);
r.Status = ResponseStatus.Ok;
r.Timeout = (u + t) - DateTime.Now;
// ensure we auto expire
if (r.Timeout > TimeSpan.Zero)
{
await store.SetTimeoutAsync(id, r.Timeout);
}
return(r);
}