seastar::coroutine::exception Struct Reference

Detailed Description

Wrapper for propagating an exception directly rather than throwing it. The wrapper can be used with both co_await and co_return.

Note

It is not possible to co_return the wrapper in coroutines which return future<> due to language limitations (it's not possible to specify both return_value and return_void in the promise_type). You can use co_await instead which works in coroutines which return either future<> or future<T>.

Example usage:

co_await coroutine::exception(std::make_exception_ptr(std::runtime_error("something failed miserably")));
co_return coroutine::exception(std::make_exception_ptr(std::runtime_error("something failed miserably")));

#include <seastar/coroutine/exception.hh>

Public Member Functions
	exception (std::exception_ptr eptr) noexcept

Public Attributes
std::exception_ptr	eptr

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The documentation for this struct was generated from the following file:

• seastar/coroutine/exception.hh