cancel.hpp File Reference

Table of Contents

• Detailed Description
• Classes
• Namespaces
• Enumerations
• Functions

Detailed Description

Task cancellation helpers.

Definition in file cancel.hpp.

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#include <string>
#include <boost/smart_ptr/intrusive_ptr.hpp>
#include <userver/engine/deadline.hpp>

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Classes
class	engine::TaskCancellationBlocker
class	engine::TaskCancellationToken
	Cancellation token to given task object. More...

Namespaces
namespace	engine
	Asynchronous engine primitives.
namespace	engine::current_task
	Namespace with functions to work with current task from within it.

Enumerations
enum class	engine::TaskCancellationReason {   engine::kNone ,   engine::kUserRequest ,   engine::kDeadline ,   engine::kOverload ,   engine::kAbandoned ,   engine::kShutdown }
	Task cancellation reason. More...

Functions
bool	engine::current_task::IsCancelRequested () noexcept
bool	engine::current_task::ShouldCancel () noexcept
TaskCancellationReason	engine::current_task::CancellationReason () noexcept
void	engine::current_task::CancellationPoint ()
	Throws an exception if a cancellation request for this task is pending.
void	engine::current_task::SetDeadline (Deadline deadline)
TaskCancellationToken	engine::current_task::GetCancellationToken ()
	Return cancellation token for current coroutine.
std::string_view	engine::ToString (TaskCancellationReason reason) noexcept
	Returns a string representation of a cancellation reason.