neograph::program::ProgramBlockingCallRefused Class Reference

Thrown by a synchronous call that would wait for a Program on a thread that cannot wait for it: the executor of RuntimeConfig::executor is pumped by a host's event loop, the build has no threads, or the call is made from a thread that runs that executor. More...

#include <blocking.h>

Inheritance diagram for neograph::program::ProgramBlockingCallRefused:

Collaboration diagram for neograph::program::ProgramBlockingCallRefused:

Public Member Functions
const std::string &	alternative () const noexcept
	The awaitable form that does the same without blocking, for example "ProgramRuntime::start_async".
const std::string &	operation () const noexcept
	The refused call, for example "ProgramRuntime::start".

Detailed Description

Thrown by a synchronous call that would wait for a Program on a thread that cannot wait for it: the executor of RuntimeConfig::executor is pumped by a host's event loop, the build has no threads, or the call is made from a thread that runs that executor.

Nothing is started or changed. alternative() names the awaitable form to use. It is also a graph::ConfigurationFailure: running it again reproduces it.

A Blocking...Store view (store_call.h) throws it too when its policy refuses to wait for a store that is not synchronous. operation() then names the store operation, for example "ProgramTransitionStore::load", the store is not touched, and alternative() is empty.

Definition at line 36 of file blocking.h.

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

• include/neograph/program/blocking.h