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#pragma once
#include "actor_bootstrapped.h"
#include <utility>
namespace NActors {
template <typename TCallback>
class TExecuteLater: public TActorBootstrapped<TExecuteLater<TCallback>> {
public:
static constexpr char ActorName[] = "AS_EXECUTE_LATER";
TExecuteLater(
TCallback&& callback,
IActor::EActivityType activityType,
ui32 channel = 0,
ui64 cookie = 0,
const TActorId& reportCompletionTo = TActorId(),
const TActorId& reportExceptionTo = TActorId()) noexcept
: Callback(std::move(callback))
, Channel(channel)
, Cookie(cookie)
, ReportCompletionTo(reportCompletionTo)
, ReportExceptionTo(reportExceptionTo)
{
this->SetActivityType(activityType);
}
void Bootstrap(const TActorContext& ctx) noexcept {
try {
{
/* RAII, Callback should be destroyed right before sending
TEvCallbackCompletion */
auto local = std::move(Callback);
using T = decltype(local);
if constexpr (std::is_invocable_v<T, const TActorContext&>) {
local(ctx);
} else {
local();
}
}
if (ReportCompletionTo) {
ctx.Send(ReportCompletionTo,
new TEvents::TEvCallbackCompletion(ctx.SelfID),
Channel, Cookie);
}
} catch (...) {
if (ReportExceptionTo) {
const TString msg = CurrentExceptionMessage();
ctx.Send(ReportExceptionTo,
new TEvents::TEvCallbackException(ctx.SelfID, msg),
Channel, Cookie);
}
}
this->Die(ctx);
}
private:
TCallback Callback;
const ui32 Channel;
const ui64 Cookie;
const TActorId ReportCompletionTo;
const TActorId ReportExceptionTo;
};
template <typename T>
IActor* CreateExecuteLaterActor(
T&& func,
IActor::EActivityType activityType,
ui32 channel = 0,
ui64 cookie = 0,
const TActorId& reportCompletionTo = TActorId(),
const TActorId& reportExceptionTo = TActorId()) noexcept {
return new TExecuteLater<T>(std::forward<T>(func),
activityType,
channel,
cookie,
reportCompletionTo,
reportExceptionTo);
}
}
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