vlc_atomic.h File Reference

Atomic operations do not require locking, but they are not very powerful. More...

Include dependency graph for vlc_atomic.h:

Go to the source code of this file.

Data Structures
union	vlc_atomic_t
	Memory storage space for an atom. More...

Macros
#define	ATOMIC_FLAG_INIT   false
#define	ATOMIC_VAR_INIT(value)   (value)
#define	atomic_init(obj, value)   do { *(obj) = (value); } while(0)
#define	kill_dependency(y)   ((void)0)
#define	atomic_thread_fence(order)   __sync_synchronize()
#define	atomic_signal_fence(order)   ((void)0)
#define	atomic_is_lock_free(obj)   false
#define	VLC_ATOMIC_INIT(val)   { (val) }
	Static initializer for vlc_atomic_t.

Typedefs
typedef bool	atomic_flag
typedef bool	atomic_bool
typedef char	atomic_char
typedef signed char	atomic_schar
typedef unsigned char	atomic_uchar
typedef short	atomic_short
typedef unsigned short	atomic_ushort
typedef int	atomic_int
typedef unsigned int	atomic_uint
typedef long	atomic_long
typedef unsigned long	atomic_ulong
typedef long long	atomic_llong
typedef unsigned long long	atomic_ullong
typedef wchar_t	atomic_wchar_t
typedef int_least8_t	atomic_int_least8_t
typedef uint_least8_t	atomic_uint_least8_t
typedef int_least16_t	atomic_int_least16_t
typedef uint_least16_t	atomic_uint_least16_t
typedef int_least32_t	atomic_int_least32_t
typedef uint_least32_t	atomic_uint_least32_t
typedef int_least64_t	atomic_int_least64_t
typedef uint_least64_t	atomic_uint_least64_t
typedef int_fast8_t	atomic_int_fast8_t
typedef uint_fast8_t	atomic_uint_fast8_t
typedef int_fast16_t	atomic_int_fast16_t
typedef uint_fast16_t	atomic_uint_fast16_t
typedef int_fast32_t	atomic_int_fast32_t
typedef uint_fast32_t	atomic_uint_fast32_t
typedef int_fast64_t	atomic_int_fast64_t
typedef uint_fast64_t	atomic_uint_fast64_t
typedef intptr_t	atomic_intptr_t
typedef uintptr_t	atomic_uintptr_t
typedef size_t	atomic_size_t
typedef ptrdiff_t	atomic_ptrdiff_t
typedef intmax_t	atomic_intmax_t
typedef uintmax_t	atomic_uintmax_t
typedef atomic_uint_least32_t	vlc_atomic_float

Functions
static uintptr_t	vlc_atomic_get (vlc_atomic_t *atom)
static uintptr_t	vlc_atomic_set (vlc_atomic_t *atom, uintptr_t v)
static uintptr_t	vlc_atomic_add (vlc_atomic_t *atom, uintptr_t v)
static uintptr_t	vlc_atomic_sub (vlc_atomic_t *atom, uintptr_t v)
static uintptr_t	vlc_atomic_inc (vlc_atomic_t *atom)
static uintptr_t	vlc_atomic_dec (vlc_atomic_t *atom)
static uintptr_t	vlc_atomic_swap (vlc_atomic_t *atom, uintptr_t v)
static uintptr_t	vlc_atomic_compare_swap (vlc_atomic_t *atom, uintptr_t u, uintptr_t v)
static float	vlc_atomic_loadf (vlc_atomic_float *atom)
	Helper to retrieve a single precision from an atom.
static void	vlc_atomic_storef (vlc_atomic_float *atom, float f)
	Helper to store a single precision into an atom.

Detailed Description

Atomic operations do not require locking, but they are not very powerful.

Macro Definition Documentation

#define ATOMIC_FLAG_INIT   false

#define atomic_init	(		obj,
			value
	)		do { *(obj) = (value); } while(0)

Referenced by aout_DecNew(), input_item_NewWithType(), input_resource_New(), vlc_custom_create(), vlc_timer_create(), and vout_statistic_Init().

#define atomic_is_lock_free

(

obj

)

false

#define atomic_signal_fence

(

order

)

((void)0)

#define atomic_thread_fence

(

order

)

__sync_synchronize()

#define ATOMIC_VAR_INIT

(

value

)

(value)

Referenced by input_item_NewWithType().

#define kill_dependency

(

y

)

((void)0)

#define VLC_ATOMIC_INIT

(

val

)

{ (val) }

Static initializer for vlc_atomic_t.

Typedef Documentation

typedef bool atomic_bool

typedef char atomic_char

typedef bool atomic_flag

typedef int atomic_int

typedef int_fast16_t atomic_int_fast16_t

typedef int_fast32_t atomic_int_fast32_t

typedef int_fast64_t atomic_int_fast64_t

typedef int_fast8_t atomic_int_fast8_t

typedef int_least16_t atomic_int_least16_t

typedef int_least32_t atomic_int_least32_t

typedef int_least64_t atomic_int_least64_t

typedef int_least8_t atomic_int_least8_t

typedef intmax_t atomic_intmax_t

typedef intptr_t atomic_intptr_t

typedef long long atomic_llong

typedef long atomic_long

typedef ptrdiff_t atomic_ptrdiff_t

typedef signed char atomic_schar

typedef short atomic_short

typedef size_t atomic_size_t

typedef unsigned char atomic_uchar

typedef unsigned int atomic_uint

typedef uint_fast16_t atomic_uint_fast16_t

typedef uint_fast32_t atomic_uint_fast32_t

typedef uint_fast64_t atomic_uint_fast64_t

typedef uint_fast8_t atomic_uint_fast8_t

typedef uint_least16_t atomic_uint_least16_t

typedef uint_least32_t atomic_uint_least32_t

typedef uint_least64_t atomic_uint_least64_t

typedef uint_least8_t atomic_uint_least8_t

typedef uintmax_t atomic_uintmax_t

typedef uintptr_t atomic_uintptr_t

typedef unsigned long long atomic_ullong

typedef unsigned long atomic_ulong

typedef unsigned short atomic_ushort

typedef wchar_t atomic_wchar_t

typedef atomic_uint_least32_t vlc_atomic_float

Function Documentation

static uintptr_t vlc_atomic_add ( vlc_atomic_t *  atom, uintptr_t  v  )

inlinestatic

References vlc_atomic_t::u.

Referenced by vlc_atomic_inc().

static uintptr_t vlc_atomic_compare_swap ( vlc_atomic_t *  atom, uintptr_t  u, uintptr_t  v  )

inlinestatic

References vlc_atomic_t::u.

static uintptr_t vlc_atomic_dec ( vlc_atomic_t *  atom )

inlinestatic

References vlc_atomic_sub().

Referenced by picture_Release().

static uintptr_t vlc_atomic_get ( vlc_atomic_t *  atom )

inlinestatic

References vlc_atomic_t::u.

Referenced by picture_IsReferenced(), picture_pool_Delete(), picture_pool_Get(), picture_pool_NonEmpty(), picture_pool_Reserve(), PictureDestroy(), and vlc_testcancel().

static uintptr_t vlc_atomic_inc ( vlc_atomic_t *  atom )

inlinestatic

References vlc_atomic_add().

Referenced by picture_Hold().

static float vlc_atomic_loadf ( vlc_atomic_float *  atom )

inlinestatic

Helper to retrieve a single precision from an atom.

Referenced by aout_volume_Amplify().

static uintptr_t vlc_atomic_set ( vlc_atomic_t *  atom, uintptr_t  v  )

inlinestatic

References vlc_atomic_t::u.

Referenced by picture_NewFromResource(), picture_pool_Delete(), picture_pool_NewExtended(), picture_pool_NonEmpty(), picture_Setup(), vlc_cancel(), and vlc_clone_attr().

static void vlc_atomic_storef ( vlc_atomic_float *  atom, float  f  )

inlinestatic

Helper to store a single precision into an atom.

Referenced by ReplayGainCallback().

static uintptr_t vlc_atomic_sub ( vlc_atomic_t *  atom, uintptr_t  v  )

inlinestatic

References vlc_atomic_t::u.

Referenced by vlc_atomic_dec().

static uintptr_t vlc_atomic_swap ( vlc_atomic_t *  atom, uintptr_t  v  )

inlinestatic

References vlc_atomic_t::u.