rx-time_interval.hpp File Reference

Returns an observable that emits indications of the amount of time lapsed between consecutive emissions of the source observable. The first emission from this new Observable indicates the amount of time lapsed between the time when the observer subscribed to the Observable and the time when the source Observable emitted its first item. More...

#include "../rx-includes.hpp"

Include dependency graph for rx-time_interval.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	rxcpp::member_overload< time_interval_tag >

Namespaces
	rxcpp
	rxcpp::operators

Macros
#define	RXCPP_OPERATORS_RX_TIME_INTERVAL_HPP

Functions
template<class... AN>
auto	rxcpp::operators::time_interval (AN &&...an) -> operator_factory< time_interval_tag, AN... >
	Returns an observable that emits indications of the amount of time lapsed between consecutive emissions of the source observable. The first emission from this new Observable indicates the amount of time lapsed between the time when the observer subscribed to the Observable and the time when the source Observable emitted its first item. More...

Detailed Description

Returns an observable that emits indications of the amount of time lapsed between consecutive emissions of the source observable. The first emission from this new Observable indicates the amount of time lapsed between the time when the observer subscribed to the Observable and the time when the source Observable emitted its first item.

Template Parameters

Coordination

the type of the scheduler.

Parameters

coordination

the scheduler for time intervals.

Returns

Observable that emits a time_duration to indicate the amount of time lapsed between pairs of emissions.

Sample Code

    typedef rxcpp::schedulers::scheduler::clock_type::time_point::duration duration_type;

    using namespace std::chrono;
    auto values = rxcpp::observable<>::interval(milliseconds(100))
            .time_interval()
            .take(3);
    values.
        subscribe(
            [&](duration_type v) {
                long long int ms = duration_cast<milliseconds>(v).count();
                printf("OnNext: @%lldms\n", ms);
            },
            [](std::exception_ptr ep) {
                try {
                    std::rethrow_exception(ep);
                } catch (const std::exception& ex) {
                    printf("OnError: %s\n", ex.what());
                }
            },
            []() { printf("OnCompleted\n"); });

OnNext: @0ms
OnNext: @100ms
OnNext: @100ms
OnCompleted

Macro Definition Documentation

#define RXCPP_OPERATORS_RX_TIME_INTERVAL_HPP