Quick_exit
quick_exit is a C standard-library function that terminates a program after invoking functions registered with at_quick_exit.
Modern C, Third Edition
quick_exit is a C standard-library function that terminates a program after running functions registered for quick termination.
- How it is used
- Provides an alternative termination path when normal atexit handlers are too time-consuming or termination begins in a signal handler.
- How deep it goes
- Explains handler registration and contrasts termination paths, then illustrates signal-handler use without detailing quick_exit internals.
- Examples
- Shows function declarations and contrasts how SIGTERM, SIGABRT, and SIGINT affect control flow.
- What you can do after
- Operate/configure it by registering an alternative cleanup handler with at_quick_exit and choosing quick_exit deliberately.
Modern C
quick_exit is the C standard library function that performs expedited program termination while invoking functions registered with at_quick_exit.
- How it is used
- Provides expedited termination when normal atexit handlers are too time-consuming.
- How deep it goes
- Defines the alternative handler mechanism and contrasts termination effects, but does not develop implementation internals.
- Examples
- Shows function-handler registration and declarations for quick_exit, _Exit, and abort.
- What you can do after
- Apply quick_exit with at_quick_exit when expedited termination is required.
Related concepts
- exitalternative to · exit is a standard-library function that terminates normal program execution after performing required termination processing, without ordinarily unwinding active automatic objects.
- at_quick_exitconfigured by · at_quick_exit is a C standard-library function that registers a function to execute during quick program termination.
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