Function

GLibatomic_int_xor

Declaration

guint
g_atomic_int_xor (
  volatile guint* atomic,
  guint val
)

Description

Performs an atomic bitwise ‘xor’ of the value of atomic and val, storing the result back in atomic.

Think of this operation as an atomic version of { tmp = *atomic; *atomic ^= val; return tmp; }.

This call acts as a full compiler and hardware memory barrier.

While atomic has a volatile qualifier, this is a historical artifact and the pointer passed to it should not be volatile.

Available since:2.30

Parameters

atomic

Type: volatile guint*

A pointer to a #gint or #guint.

The data is owned by the caller of the function.
val

Type: guint

The value to ‘xor’

Return value

Type: guint

The value of atomic before the operation, unsigned.