qatomic_sh.h File Reference

Macros
#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

Macro Definition Documentation

#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE

Definition at line 49 of file qatomic_sh.h.

#define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE

Definition at line 56 of file qatomic_sh.h.

#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE

Definition at line 63 of file qatomic_sh.h.

#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE

Definition at line 70 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE

Definition at line 77 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE

Definition at line 86 of file qatomic_sh.h.

#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE

Definition at line 95 of file qatomic_sh.h.

Function Documentation

Q_CORE_EXPORT void qt_atomic_yield

(

int *

count

)

int qt_atomic_tasb ( volatile char *  ptr )

inline

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;
}

Variable Documentation

Q_CORE_EXPORT volatile char qt_atomic_lock

Go to the source code of this file.