CriticalSectionLock Class Reference

RAII object for disabling, then restoring, interrupt state Usage: More...

#include <CriticalSectionLock.h>

Static Public Member Functions
static void	enable ()
	Mark the start of a critical section. More...
static void	disable ()
	Mark the end of a critical section. More...

Detailed Description

RAII object for disabling, then restoring, interrupt state Usage:

// RAII style usage
unsigned int atomic_counter_increment(unsigned int &counter) {
    CriticalSectionLock lock;
    // Code in this block will run with interrupts disabled
    // Interrupts will be restored to their previous state automatically
    // at the end of function scope
    return ++counter;
}
 
// free locking usage
unsigned int atomic_counter_decrement(unsigned int &counter) {
    CriticalSectionLock::enable();
    // Code in this block will run with interrupts disabled
    counter--;
    CriticalSectionLock::disable(); // need explicitly to disable critical section lock
    // interrupts will be restored to their previous state here
    return counter;
}

Definition at line 56 of file CriticalSectionLock.h.

Member Function Documentation

enable()

static void enable ( )

static

Mark the start of a critical section.

disable()

static void disable ( )

static

Mark the end of a critical section.