1QB_ATOMIC_INT_EXCHANGE_AND_AlDiDb(q3b)Programmer'sQMBa_nAuTaOlMIC_INT_EXCHANGE_AND_ADD(3)
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NAME

6       qb_atomic_int_exchange_and_add  -  Atomically  adds  val to the integer
7       pointed to by atomic.
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SYNOPSIS

11       #include <qb/qbatomic.h>
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13       int32_t qb_atomic_int_exchange_and_add(
14           volatile int32_t QB_GNUC_MAY_ALIAS   *atomic,     /* a pointer to an integer */
15           int32_t                               val  /* the value to add to *atomic */
16       );
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PARAMS

19       atomic a pointer to an integer
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21       val    the value to add to *atomic
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DESCRIPTION

24       It returns the value of *atomic just before the  addition  took  place.
25       Also acts as a memory barrier.
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RETURN VALUE

28       the value of *atomic before the addition.
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SEE ALSO

31       qb_atomic_int_set(3), qb_atomic_int_compare_and_exchange(3),
32       qb_atomic_int_get(3), qb_atomic_int_add(3), qb_atomic_init(3),
33       qb_atomic_pointer_get(3), qb_atomic_pointer_compare_and_exchange(3),
34       qb_atomic_pointer_set(3)
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COPYRIGHT

37       Copyright (C) 2003 Sebastian Wilhelmi
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41LIBQB                             2021-11-12 QB_ATOMIC_INT_EXCHANGE_AND_ADD(3)