private async Task <AnswerResult> InternalAnswerAsync()
{
await API.API.SetupAsync();
AnswerResult resultAnswer = new AnswerResult();
TaskCompletionSource <bool> tcsCompletion = new TaskCompletionSource <bool>();
// Hook callbacks temporarily to catch required events
AnsweredCallback answeredCallback = (a, c, e, p) =>
{
resultAnswer.Event = new Event(e.EventType, JObject.FromObject(p));
tcsCompletion.SetResult(true);
};
EndedCallback endedCallback = (a, c, e, p) =>
{
resultAnswer.Event = new Event(e.EventType, JObject.FromObject(p));
tcsCompletion.SetResult(false);
};
OnAnswered += answeredCallback;
OnEnded += endedCallback;
try
{
Task <LL_AnswerResult> taskLLAnswer = mAPI.LL_AnswerAsync(new LL_AnswerParams()
{
NodeID = mNodeID,
CallID = mID,
});
// The use of await rethrows exceptions from the task
LL_AnswerResult resultLLAnswer = await taskLLAnswer;
if (resultLLAnswer.Code == "200")
{
mLogger.LogDebug("Answer for call {0} waiting for completion events", ID);
resultAnswer.Successful = await tcsCompletion.Task;
mLogger.LogDebug("Answer for call {0} {1}", ID, resultAnswer.Successful ? "successful" : "unsuccessful");
}
}
catch (Exception exc)
{
mLogger.LogError(exc, "Answer for call {0} exception", ID);
}
// Unhook temporary callbacks
OnAnswered -= answeredCallback;
OnEnded -= endedCallback;
return(resultAnswer);
}
protected override async Task <DialResult> InternalDialAsync()
{
await API.API.SetupAsync();
DialResult resultDial = new DialResult();
TaskCompletionSource <bool> tcsCompletion = new TaskCompletionSource <bool>();
// Hook callbacks temporarily to catch required events
AnsweredCallback answeredCallback = (a, c, e, p) =>
{
resultDial.Event = new Event(e.EventType, JObject.FromObject(p));
resultDial.Call = c;
tcsCompletion.SetResult(true);
};
EndedCallback endedCallback = (a, c, e, p) =>
{
resultDial.Event = new Event(e.EventType, JObject.FromObject(p));
tcsCompletion.SetResult(false);
};
OnAnswered += answeredCallback;
OnEnded += endedCallback;
try
{
Task <LL_BeginResult> taskLLBegin = mAPI.LL_BeginAsync(new LL_BeginParams()
{
Device = new CallDevice()
{
Type = CallDevice.DeviceType.phone,
Parameters = new CallDevice.PhoneParams()
{
ToNumber = To,
FromNumber = From,
Timeout = Timeout,
},
},
TemporaryCallID = mTemporaryID,
});
// The use of await rethrows exceptions from the task
LL_BeginResult resultLLBegin = await taskLLBegin;
if (resultLLBegin.Code == "200")
{
mLogger.LogDebug("Dial for call {0} waiting for completion events", ID);
resultDial.Successful = await tcsCompletion.Task;
mLogger.LogDebug("Dial for call {0} {1}", ID, resultDial.Successful ? "successful" : "unsuccessful");
}
}
catch (Exception exc)
{
mLogger.LogError(exc, "Dial for call {0} exception", ID);
}
// Unhook temporary callbacks
OnAnswered -= answeredCallback;
OnEnded -= endedCallback;
return(resultDial);
}
