include/generic/atomic.h File Reference

Atomic Operations: Generic implementation. More...

#include <compiler.h>
#include <interrupt.h>

Go to the source code of this file.

Data Structures
struct	atomic_object
	Implementation-specific structure holding an atomic object. More...
Typedefs
typedef struct atomic_object	atomic_t
	An atomic object representing a value which is manipulated atomically.
Functions
static atomic_value_t	atomic_read (atomic_t *ptr)
	Return the value of the atomic object at ptr.
static void	atomic_write (atomic_t *ptr, atomic_value_t value)
	Write value to the atomic object at ptr.
static atomic_t	atomic_add (atomic_t *ptr, atomic_value_t value)
	Atomically add value to the value stored at ptr.
static atomic_t	atomic_sub (atomic_t *ptr, atomic_value_t value)
	Atomically subtract value from the value stored at ptr.

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Detailed Description

Atomic Operations: Generic implementation.

Architectures which don't have any special mechanisms for atomic operations may include this file after defining the type atomic_value_t to something suitable for the architecture.

The generic implementation disables interrupts to achieve atomicity.

Copyright (C) 2009 Atmel Corporation. All rights reserved.

Definition in file atomic.h.