pre_exit

Pre-exit handler registration (at_pre_exit, pre_exit). More...

Typedefs
using	stlab::pre_exit_handler
	Function type invoked during pre_exit() (must not throw; noexcept with C++17 and later).

Functions
void	stlab::stlab_pre_exit ()
	An extern "C" vector for pre-exit() to make it simpler to export the function from a shared library.
void	stlab::stlab_at_pre_exit (pre_exit_handler f)
	An extern "C" vector for at_pre-exit() to make it simpler to export the function from a shared library.
void	stlab::pre_exit ()
	Invoke all registered pre-exit handlers in the reverse order they are registered. It is safe to register additional handlers during this operation. Must be invoked exactly once prior to program exit. Handlers needed to unblock running core work must be registered after the first timer or default-executor use and before invoking pre_exit(). On threadless Emscripten, returns after initiating retirement; the next ordinary main task runs only after executor work and deferred handlers finish. Default/high/low submission remains available during the drain and is a precondition violation after it completes.
void	stlab::at_pre_exit (pre_exit_handler f)
	Register a pre-exit handler. The pre-exit-handler may not throw. With C++17 or later it is required to be noexcept.

Detailed Description

Pre-exit handler registration (at_pre_exit, pre_exit).

Function Documentation

at_pre_exit()

void stlab::v2::at_pre_exit ( pre_exit_handler f )

inline

Register a pre-exit handler. The pre-exit-handler may not throw. With C++17 or later it is required to be noexcept.

• Precondition: f is not null and pre_exit() has not completed.

pre_exit()

void stlab::v2::pre_exit ( )

inline

Invoke all registered pre-exit handlers in the reverse order they are registered. It is safe to register additional handlers during this operation. Must be invoked exactly once prior to program exit. Handlers needed to unblock running core work must be registered after the first timer or default-executor use and before invoking pre_exit(). On threadless Emscripten, returns after initiating retirement; the next ordinary main task runs only after executor work and deferred handlers finish. Default/high/low submission remains available during the drain and is a precondition violation after it completes.

• Complexity: linear in invoked handlers, excluding the work performed by those handlers.