// Protected methods
protected virtual async Task Notify()
{
var qPayload = AgentInfo.Id.Value.Replace("'", "''");
TDbContext?dbContext = null;
for (;;)
{
try {
using (await AsyncLock.Lock()) {
if (IsDisposed)
{
return;
}
dbContext = DbContext ??= CreateDbContext();
await dbContext.Database
.ExecuteSqlRawAsync($"NOTIFY {Options.ChannelName}, '{qPayload}'")
.ConfigureAwait(false);
}
return;
}
catch (Exception e) {
Log.LogError(e, "Notification failed - retrying");
DbContext = null;
dbContext?.DisposeAsync().Ignore(); // Doesn't matter if it fails
await Clock.Delay(Options.RetryDelay).ConfigureAwait(false);
}
}
}
protected virtual async Task NotifyAsync()
{
var qPayload = AgentInfo.Id.Value.Replace("'", "''");
TDbContext?dbContext = null;
try {
using (await AsyncLock.LockAsync()) {
if (IsDisposed)
{
throw Errors.AlreadyDisposed();
}
dbContext = DbContext ??= CreateDbContext();
await dbContext.Database
.ExecuteSqlRawAsync($"NOTIFY {Options.ChannelName}, '{qPayload}'")
.ConfigureAwait(false);
}
}
catch {
DbContext = null;
Notify(Options.RetryDelay); // Retry
dbContext?.DisposeAsync().Ignore(); // Doesn't matter if it fails
}
}