void operator()(SharedState& shared_state,
typename std::enable_if<
traits::is_shared_state<SharedState>::value
>::type* = nullptr) const
{
std::size_t counter =
wait_.count_.load(boost::memory_order_seq_cst);
if (counter < wait_.needed_count_ && !shared_state->is_ready())
{
// handle future only if not enough futures are ready yet
// also, do not touch any futures which are already ready
shared_state->execute_deferred();
// execute_deferred might have made the future ready
if (!shared_state->is_ready())
{
shared_state->set_on_completed(
util::deferred_call(
&wait_some<Sequence>::on_future_ready,
wait_.shared_from_this(),
threads::get_self_id()));
return;
}
}
if (wait_.count_.fetch_add(1) + 1 == wait_.needed_count_)
{
wait_.goal_reached_on_calling_thread_ = true;
}
}
void operator()(SharedState& shared_state) const
{
std::size_t counter = wait_.count_.load(boost::memory_order_acquire);
if (counter < wait_.needed_count_ && !shared_state->is_ready()) {
// handle future only if not enough futures are ready yet
// also, do not touch any futures which are already ready
shared_state->set_on_completed(Callback(callback_));
}
else {
++wait_.count_;
}
}
void operator()(SharedState& shared_state) const
{
std::size_t counter =
wait_.count_.load(boost::memory_order_seq_cst);
if (counter < wait_.needed_count_ && !shared_state->is_ready())
{
// handle future only if not enough futures are ready yet
// also, do not touch any futures which are already ready
shared_state->execute_deferred();
// execute_deferred might have made the future ready
if (!shared_state->is_ready())
{
shared_state->set_on_completed(Callback(callback_));
return;
}
}
if (wait_.count_.fetch_add(1) + 1 == wait_.needed_count_)
{
wait_.goal_reached_on_calling_thread_ = true;
}
}