atomic.h File Reference

Utilities for ensuring atomic / non atomic execution of code blocks. More...

#include <inttypes.h>
#include <avr/io.h>

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Classes
class	Avr::AtomicGuard< TAtomicMode >
	RAII-style wrapper to disable interrupts for the duration of a scoped block. More...
class	Avr::AtomicForceOn
	Configuration parameter for AtomicGuard that unconditionally enables interrupts on exit. More...
class	Avr::AtomicRestoreState
	Configuration parameter for AtomicGuard that saves the global interrupt state and restores it on exit. More...
class	Avr::NonAtomicGuard< TNonAtomicMode >
	RAII-style wrapper to enable interrupts for the duration of a scoped block. More...
class	Avr::NonAtomicForceOff
	Configuration parameter for NonAtomicGuard that unconditionally disables interrupts on exit. More...
class	Avr::NonAtomicRestoreState
	Configuration parameter for NonAtomicGuard that saves the global interrupt state and restores it on exit. More...

Namespaces
	Avr
	Namespace containing all symbols of the AVR C++ utilities library.

Detailed Description

Utilities for ensuring atomic / non atomic execution of code blocks.

This module contains RAII-style utilities that ensure atomic / non atomic execution of scoped blocks by controlling the global interrupt state (in the SREG register).

Usage:

int main() {
    // ...
    {
        Avr::AtomicGuard<Avr::AtomicRestoreState> atomicGuard;
        // Interrupts are guaranteed to be disabled
    }
    // ...
}

See also

http://www.nongnu.org/avr-libc/user-manual/group__util__atomic.html