27 #if !defined(RXCPP_OPERATORS_RX_BUFFER_WITH_TIME_OR_COUNT_HPP) 28 #define RXCPP_OPERATORS_RX_BUFFER_WITH_TIME_OR_COUNT_HPP 30 #include "../rx-includes.hpp" 39 struct buffer_with_time_or_count_invalid_arguments {};
42 struct buffer_with_time_or_count_invalid :
public rxo::operator_base<buffer_with_time_or_count_invalid_arguments<AN...>> {
43 using type = observable<buffer_with_time_or_count_invalid_arguments<
AN...>, buffer_with_time_or_count_invalid<
AN...>>;
46 using buffer_with_time_or_count_invalid_t =
typename buffer_with_time_or_count_invalid<
AN...>::type;
48 template<
class T,
class Duration,
class Coordination>
51 typedef rxu::decay_t<T> source_value_type;
52 typedef std::vector<source_value_type> value_type;
53 typedef rxu::decay_t<Coordination> coordination_type;
54 typedef typename coordination_type::coordinator_type coordinator_type;
55 typedef rxu::decay_t<Duration> duration_type;
57 struct buffer_with_time_or_count_values
59 buffer_with_time_or_count_values(duration_type p,
int n, coordination_type c)
67 coordination_type coordination;
69 buffer_with_time_or_count_values initial;
72 : initial(period, count, coordination)
76 template<
class Subscriber>
77 struct buffer_with_time_or_count_observer
79 typedef buffer_with_time_or_count_observer<Subscriber> this_type;
80 typedef std::vector<T> value_type;
81 typedef rxu::decay_t<Subscriber> dest_type;
82 typedef observer<value_type, this_type> observer_type;
84 struct buffer_with_time_or_count_subscriber_values :
public buffer_with_time_or_count_values
86 buffer_with_time_or_count_subscriber_values(composite_subscription cs, dest_type d, buffer_with_time_or_count_values v, coordinator_type c)
87 : buffer_with_time_or_count_values(std::move(v))
90 , coordinator(std::move(c))
91 , worker(coordinator.get_worker())
95 composite_subscription cs;
97 coordinator_type coordinator;
100 mutable value_type chunk;
102 typedef std::shared_ptr<buffer_with_time_or_count_subscriber_values> state_type;
105 buffer_with_time_or_count_observer(composite_subscription cs, dest_type d, buffer_with_time_or_count_values v, coordinator_type c)
106 : state(std::make_shared<buffer_with_time_or_count_subscriber_values>(buffer_with_time_or_count_subscriber_values(std::move(cs), std::move(d), std::move(v), std::move(c))))
108 auto new_id = state->chunk_id;
109 auto produce_time = state->worker.now() + state->period;
110 auto localState = state;
112 auto disposer = [=](
const rxsc::schedulable&){
113 localState->cs.unsubscribe();
114 localState->dest.unsubscribe();
115 localState->worker.unsubscribe();
118 [&](){
return localState->coordinator.act(disposer);},
120 if (selectedDisposer.empty()) {
124 localState->dest.add([=](){
125 localState->worker.schedule(selectedDisposer.get());
127 localState->cs.add([=](){
128 localState->worker.schedule(selectedDisposer.get());
137 localState->worker.schedule(produce_time, [new_id, produce_time, localState](
const rxsc::schedulable&){
138 localState->worker.schedule(produce_buffer(new_id, produce_time, localState));
142 static std::function<void(const rxsc::schedulable&)> produce_buffer(
int id, rxsc::scheduler::clock_type::time_point expected, state_type state) {
143 auto produce = [id, expected, state](
const rxsc::schedulable&) {
144 if (
id != state->chunk_id)
147 state->dest.on_next(state->chunk);
148 state->chunk.resize(0);
149 auto new_id = ++state->chunk_id;
150 auto produce_time = expected + state->period;
151 state->worker.schedule(produce_time, [new_id, produce_time, state](
const rxsc::schedulable&){
152 state->worker.schedule(produce_buffer(new_id, produce_time, state));
157 [&](){
return state->coordinator.act(produce);},
159 if (selectedProduce.empty()) {
160 return std::function<void(const rxsc::schedulable&)>();
163 return std::function<void(const rxsc::schedulable&)>(selectedProduce.get());
166 void on_next(T v)
const {
167 auto localState = state;
168 auto work = [v, localState](
const rxsc::schedulable&
self){
169 localState->chunk.push_back(v);
170 if (
int(localState->chunk.size()) == localState->count) {
171 produce_buffer(localState->chunk_id, localState->worker.now(), localState)(
self);
175 [&](){
return localState->coordinator.act(work);},
177 if (selectedWork.empty()) {
180 localState->worker.schedule(selectedWork.get());
182 void on_error(std::exception_ptr e)
const {
183 auto localState = state;
184 auto work = [e, localState](
const rxsc::schedulable&){
185 localState->dest.on_error(e);
188 [&](){
return localState->coordinator.act(work);},
190 if (selectedWork.empty()) {
193 localState->worker.schedule(selectedWork.get());
195 void on_completed()
const {
196 auto localState = state;
197 auto work = [localState](
const rxsc::schedulable&){
198 localState->dest.on_next(localState->chunk);
199 localState->dest.on_completed();
202 [&](){
return localState->coordinator.act(work);},
204 if (selectedWork.empty()) {
207 localState->worker.schedule(selectedWork.get());
210 static subscriber<T, observer<T, this_type>> make(dest_type d, buffer_with_time_or_count_values v) {
211 auto cs = composite_subscription();
212 auto coordinator = v.coordination.create_coordinator();
214 return make_subscriber<T>(cs, this_type(cs, std::move(d), std::move(v), std::move(coordinator)));
218 template<
class Subscriber>
219 auto operator()(Subscriber dest)
const 220 -> decltype(buffer_with_time_or_count_observer<Subscriber>::make(std::move(dest), initial)) {
221 return buffer_with_time_or_count_observer<Subscriber>::make(std::move(dest), initial);
229 template<
class...
AN>
232 return operator_factory<buffer_with_time_or_count_tag,
AN...>(std::make_tuple(std::forward<AN>(an)...));
240 template<
class Observable,
class Duration,
243 std::is_convertible<Duration, rxsc::scheduler::clock_type::duration>>,
245 class BufferTimeCount = rxo::detail::buffer_with_time_or_count<SourceValue, rxu::decay_t<Duration>,
identity_one_worker>,
252 template<
class Observable,
class Duration,
class Coordination,
254 is_observable<Observable>,
255 std::is_convertible<Duration, rxsc::scheduler::clock_type::duration>,
258 class BufferTimeCount = rxo::detail::buffer_with_time_or_count<SourceValue, rxu::decay_t<Duration>,
rxu::decay_t<Coordination>>,
260 static auto member(Observable&& o, Duration&& period,
int count, Coordination&& cn)
261 -> decltype(o.template lift<Value>(BufferTimeCount(std::forward<Duration>(period),
count, std::forward<Coordination>(cn)))) {
262 return o.template lift<Value>(BufferTimeCount(std::forward<Duration>(period),
count, std::forward<Coordination>(cn)));
265 template<
class...
AN>
266 static operators::detail::buffer_with_time_or_count_invalid_t<
AN...>
member(
AN...) {
269 static_assert(
sizeof...(
AN) == 10000,
"buffer_with_time_or_count takes (Duration, Count, optional Coordination)");
Definition: rx-operators.hpp:143
static operators::detail::buffer_with_time_or_count_invalid_t< AN... > member(AN...)
Definition: rx-buffer_time_count.hpp:266
auto count() -> operator_factory< reduce_tag, int, rxu::count, rxu::detail::take_at< 0 >>
For each item from this observable reduce it by incrementing a count.
Definition: rx-reduce.hpp:412
Definition: rx-all.hpp:26
typename std::decay< T >::type::value_type value_type_t
Definition: rx-util.hpp:35
static auto member(Observable &&o, Duration &&period, int count) -> decltype(o.template lift< Value >(BufferTimeCount(std::forward< Duration >(period), count, identity_current_thread())))
Definition: rx-buffer_time_count.hpp:247
Definition: rx-operators.hpp:69
static auto member(Observable &&o, Duration &&period, int count, Coordination &&cn) -> decltype(o.template lift< Value >(BufferTimeCount(std::forward< Duration >(period), count, std::forward< Coordination >(cn))))
Definition: rx-buffer_time_count.hpp:260
auto AN
Definition: rx-finally.hpp:105
auto buffer_with_time_or_count(AN &&...an) -> operator_factory< buffer_with_time_or_count_tag, AN... >
Return an observable that emits connected, non-overlapping buffers of items from the source observabl...
Definition: rx-buffer_time_count.hpp:230
typename std::decay< T >::type decay_t
Definition: rx-util.hpp:36
Definition: rx-operators.hpp:47
typename std::enable_if< all_true_type< BN... >::value >::type enable_if_all_true_type_t
Definition: rx-util.hpp:114
auto on_exception(const F &f, const OnError &c) -> typename std::enable_if< detail::is_on_error< OnError >::value, typename detail::maybe_from_result< F >::type >::type
Definition: rx-observer.hpp:639
Definition: rx-coordination.hpp:114
identity_one_worker identity_current_thread()
Definition: rx-coordination.hpp:175
Definition: rx-predef.hpp:177
Definition: rx-coordination.hpp:37