qatomic_sh.h File Reference

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Defines
#define	Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE
#define	Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE
#define	Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE
#define	Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE
#define	Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE
#define	Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE
#define	Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE
Functions
Q_CORE_EXPORT void	qt_atomic_yield (int *count)
int	qt_atomic_tasb (volatile char *ptr)
Variables
Q_CORE_EXPORT volatile char	qt_atomic_lock

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Define Documentation

#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE

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Definition at line 49 of file qatomic_sh.h.

#define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE

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Definition at line 56 of file qatomic_sh.h.

#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE

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Definition at line 63 of file qatomic_sh.h.

#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE

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Definition at line 70 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE

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Definition at line 77 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE

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Definition at line 86 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE

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Definition at line 95 of file qatomic_sh.h.

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Function Documentation

Q_CORE_EXPORT void qt_atomic_yield

(

int *

count

)

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int qt_atomic_tasb

(

volatile char *

ptr

)

[inline]

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Definition at line 107 of file qatomic_sh.h.

{
    register int ret;
    asm volatile("tas.b @%2\n"
                 "movt  %0"
                 : "=&r"(ret), "=m"(*ptr)
                 : "r"(ptr)
                 : "cc", "memory");
    return ret;
}

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Variable Documentation

Q_CORE_EXPORT volatile char qt_atomic_lock

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