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/** @addtogroup libcarm32  
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/** @addtogroup libcarm32  
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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 *  @brief Atomic operations.
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 */
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 */
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#ifndef LIBC_arm32_ATOMIC_H_
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#ifndef LIBC_arm32_ATOMIC_H_
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#define LIBC_arm32_ATOMIC_H_
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#define LIBC_arm32_ATOMIC_H_
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/** Atomic addition.
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/** Atomic addition.
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 *
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 *
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 * @param val "Atomic variable".
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 * @param val Where to add.
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 * @param i Value to add.
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 * @param i   Value to be added.
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 *
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 *
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 * @return Value after addition.
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 * @return Value after addition.
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 */
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 */
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static inline long atomic_add(atomic_t *val, int i)
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static inline long atomic_add(atomic_t *val, int i)
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{
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{
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    );
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    );
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    return ret;
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    return ret;
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}
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}
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/** Atomic increment.
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 *
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 * @param val Variable to be incremented.
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 */
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static inline void atomic_inc(atomic_t *val) { atomic_add(val, 1); }
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static inline void atomic_inc(atomic_t *val) { atomic_add(val, 1); }
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/** Atomic decrement.
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 *
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 * @param val Variable to be decremented.
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 */
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static inline void atomic_dec(atomic_t *val) { atomic_add(val, -1); }
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static inline void atomic_dec(atomic_t *val) { atomic_add(val, -1); }
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/** Atomic pre-increment.
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 *
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 * @param val Variable to be incremented.
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 * @return    Value after incrementation.
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 */
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static inline long atomic_preinc(atomic_t *val) { return atomic_add(val, 1); }
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static inline long atomic_preinc(atomic_t *val) { return atomic_add(val, 1); }
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/** Atomic pre-decrement.
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 *
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 * @param val Variable to be decremented.
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 * @return    Value after decrementation.
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 */
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static inline long atomic_predec(atomic_t *val) { return atomic_add(val, -1); }
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static inline long atomic_predec(atomic_t *val) { return atomic_add(val, -1); }
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/** Atomic post-increment.
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 *
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 * @param val Variable to be incremented.
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 * @return    Value before incrementation.
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 */
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static inline long atomic_postinc(atomic_t *val) { return atomic_add(val, 1) - 1; }
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static inline long atomic_postinc(atomic_t *val) { return atomic_add(val, 1) - 1; }
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/** Atomic post-decrement.
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 *
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 * @param val Variable to be decremented.
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 * @return    Value before decrementation.
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 */
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static inline long atomic_postdec(atomic_t *val) { return atomic_add(val, -1) + 1; }
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static inline long atomic_postdec(atomic_t *val) { return atomic_add(val, -1) + 1; }
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */