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Implemented Future.then(...) for chaining without coroutines #10

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merged 5 commits into from
Sep 13, 2023
Merged

Implemented Future.then(...) for chaining without coroutines #10

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ee2d7b1
Basic implementation of Future.then(...)
snej Sep 12, 2023
d09885a
Fixed leaks in NWConnection
snej Sep 13, 2023
499e426
Much-improved Future::then
snej Sep 13, 2023
8253127
Simplified Future code by removing FutureProvider class
snej Sep 13, 2023
2141ad4
Fixes
snej Sep 13, 2023
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35 changes: 16 additions & 19 deletions include/Actor.hh
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Original file line number Diff line number Diff line change
Expand Up @@ -106,26 +106,23 @@ namespace crouton {

explicit ActorMethodImpl(crouton::Actor const* actor, ...) :ActorMethodImpl(*actor) { }

struct suspendInitial : public CORO_NS::suspend_always {
ActorMethodImpl* self;
bool await_ready() const noexcept {
return self->_actor->startNew(self->handle());
}
void await_suspend(coro_handle cur) {
lifecycle::suspendInitial(cur);
}
};

struct suspendFinal : public Finisher {
ActorMethodImpl* self;
coro_handle await_suspend(coro_handle h) noexcept {
self->_actor->finished(h);
return Finisher::await_suspend(h);
}
};
auto initial_suspend() {
struct suspendInitial : public CORO_NS::suspend_always {
ActorMethodImpl* self;
bool await_ready() const noexcept {
return self->_actor->startNew(self->handle());
}
void await_suspend(coro_handle cur) {
lifecycle::suspendInitial(cur);
}
};
return suspendInitial{{},this};
}

suspendInitial initial_suspend() { return suspendInitial{{},this}; }
suspendFinal final_suspend() noexcept { return suspendFinal{{},this}; }
auto final_suspend() noexcept {
_actor->finished(this->handle());
return FutureImpl<T>::final_suspend();
}

private:
ActorMethodImpl() = delete; // I need to know the identity of the Actor owning the coro
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