include/atomic.h File Reference

Interface: critical section management. More...

#include <config.h>

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Typedefs
typedef volatile unsigned char	atomic_t
	The data type that allows for atomic count operations.
Functions
void	atomic_dec (atomic_t *counter)
	decrement atomic counter without interruption.
void	atomic_inc (atomic_t *counter)
	increment atomic counter without interruption.

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Detailed Description

Interface: critical section management.

Author:

Henner Zeller <H.Zeller@acm.org>

Defines types and functions to implement atomic counters.

Definition in file atomic.h.

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Typedef Documentation

typedef volatile unsigned char atomic_t

The data type that allows for atomic count operations. See also: atomic_inc Definition at line 43 of file atomic.h.

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Function Documentation

void atomic_dec (  atomic_t *  counter  )

decrement atomic counter without interruption. locks interrupts except NMI, decrements count then restores interrupts. Parameters: counter  the counter resource to be decremented See also: atomic_inc

void atomic_inc (  atomic_t *  counter  )

increment atomic counter without interruption. locks interrupts except NMI, increments count then restores interrupts. Parameters: counter  the counter resource to be incremented See also: atomic_dec Referenced by sem_post().

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brickOS is released under the Mozilla Public License. Original code copyright 1998-2002 by the authors.

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