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class async_event_impl

Declaration

class async_event_impl { /* full declaration omitted */ };

Description

Abstract base class for async_event implementations.

Member Function Overview

Member Functions

async_event_impl()

async_event_impl(const async_event_impl&)

Parameters

const async_event_impl& 

async_event_impl(async_event_impl&&)

Parameters

async_event_impl&& 

virtual std::optional<std::chrono::nanoseconds>
get_native_execution_time()

Description

Returns the time execution time as measured if profiling was enabled in the issuing component. Requires is_complete() to be true.

virtual void* get_result()

Description

There is only one instruction type which returns a result, namely alloc_instruction returning a pointer to the allocated memory, i.e. a void*. Having a void* return type on async_event_impl is somewhat leaky, but we don't gain much by wrapping it in a std::any.

virtual bool is_complete()

Description

If this function returns true once, the implementation must guarantee that it will always do so in the future. The event is expected to be cheap to poll repeatedly, and the operation must proceed in the background even while not being polled.

async_event_impl& operator=(
    const async_event_impl&)

Parameters

const async_event_impl& 

async_event_impl& operator=(async_event_impl&&)

Parameters

async_event_impl&& 

virtual ~async_event_impl()