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#pragma once
#include <library/cpp/actors/core/actor.h>
#include <library/cpp/actors/core/events.h>
#include <util/generic/hash_set.h>
namespace NActors {
////////////////////////////////////////////////////////////////////////////
// TActiveActors
// This class helps manage created actors and kill them all on PoisonPill.
////////////////////////////////////////////////////////////////////////////
class TActiveActors : public THashSet<TActorId> {
public:
void Insert(const TActorId &aid) {
bool inserted = insert(aid).second;
Y_ABORT_UNLESS(inserted);
}
void Insert(const TActiveActors &moreActors) {
for (const auto &aid : moreActors) {
Insert(aid);
}
}
void Erase(const TActorId &aid) {
auto num = erase(aid);
Y_ABORT_UNLESS(num == 1);
}
size_t KillAndClear(const TActorContext &ctx) {
size_t s = size(); // number of actors managed
for (const auto &x: *this) {
ctx.Send(x, new TEvents::TEvPoisonPill());
}
clear();
return s; // how many actors we killed
}
};
} // NKikimr
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