Atomic operations API

nRF5 SDK v12.2.0

nRF52 Series only: This module implements C11 stdatomic.h simplified API. At this point only Cortex-M3/M4 cores are supported (LDREX/STREX instructions). Atomic types are limited to nrf_atomic_u32_t and nrf_atomic_flag_t . More...

Functions

static uint32_t nrf_atomic_u32_store_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Stores value to an atomic object. More...
static uint32_t nrf_atomic_u32_store ( nrf_atomic_u32_t *p_data, uint32_t value)
Stores value to an atomic object. More...
static uint32_t nrf_atomic_u32_or_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical OR operation on an atomic object. More...
static uint32_t nrf_atomic_u32_or ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical OR operation on an atomic object. More...
static uint32_t nrf_atomic_u32_and_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical AND operation on an atomic object. More...
static uint32_t nrf_atomic_u32_and ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical AND operation on an atomic object. More...
static uint32_t nrf_atomic_u32_xor_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical XOR operation on an atomic object. More...
static uint32_t nrf_atomic_u32_xor ( nrf_atomic_u32_t *p_data, uint32_t value)
Logical XOR operation on an atomic object. More...
static uint32_t nrf_atomic_u32_add_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Arithmetic ADD operation on an atomic object. More...
static uint32_t nrf_atomic_u32_add ( nrf_atomic_u32_t *p_data, uint32_t value)
Arithmetic ADD operation on an atomic object. More...
static uint32_t nrf_atomic_u32_sub_fetch ( nrf_atomic_u32_t *p_data, uint32_t value)
Arithmetic SUB operation on an atomic object. More...
static uint32_t nrf_atomic_u32_sub ( nrf_atomic_u32_t *p_data, uint32_t value)
Arithmetic SUB operation on an atomic object. More...
static uint32_t nrf_atomic_flag_set_fetch ( nrf_atomic_flag_t *p_data)
Logic one bit flag set operation on an atomic object. More...
static uint32_t nrf_atomic_flag_set ( nrf_atomic_flag_t *p_data)
Logic one bit flag set operation on an atomic object. More...
static uint32_t nrf_atomic_flag_clear_fetch ( nrf_atomic_flag_t *p_data)
Logic one bit flag clear operation on an atomic object. More...
static uint32_t nrf_atomic_flag_clear ( nrf_atomic_flag_t *p_data)
Logic one bit flag clear operation on an atomic object. More...

Detailed Description

nRF52 Series only: This module implements C11 stdatomic.h simplified API. At this point only Cortex-M3/M4 cores are supported (LDREX/STREX instructions). Atomic types are limited to nrf_atomic_u32_t and nrf_atomic_flag_t .

Function Documentation

static uint32_t nrf_atomic_flag_clear ( nrf_atomic_flag_t * p_data )
inline static

Logic one bit flag clear operation on an atomic object.

Parameters
[in] p_data Atomic flag memory pointer
Returns
New flag value
static uint32_t nrf_atomic_flag_clear_fetch ( nrf_atomic_flag_t * p_data )
inline static

Logic one bit flag clear operation on an atomic object.

Parameters
[in] p_data Atomic flag memory pointer
Returns
Old flag value
static uint32_t nrf_atomic_flag_set ( nrf_atomic_flag_t * p_data )
inline static

Logic one bit flag set operation on an atomic object.

Parameters
[in] p_data Atomic flag memory pointer
Returns
New flag value
static uint32_t nrf_atomic_flag_set_fetch ( nrf_atomic_flag_t * p_data )
inline static

Logic one bit flag set operation on an atomic object.

Parameters
[in] p_data Atomic flag memory pointer
Returns
Old flag value
static uint32_t nrf_atomic_u32_add ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Arithmetic ADD operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand ADD operation
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_add_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Arithmetic ADD operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand ADD operation
Returns
Old value stored into atomic object
static uint32_t nrf_atomic_u32_and ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical AND operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand AND operation
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_and_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical AND operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand AND operation
Returns
Old value stored into atomic object
static uint32_t nrf_atomic_u32_or ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical OR operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand OR operation
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_or_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical OR operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand OR operation
Returns
Old value stored into atomic object
static uint32_t nrf_atomic_u32_store ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Stores value to an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value to store
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_store_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Stores value to an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value to store
Returns
Old value stored into atomic object
static uint32_t nrf_atomic_u32_sub ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Arithmetic SUB operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand SUB operation
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_sub_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Arithmetic SUB operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand SUB operation
Returns
Old value stored into atomic object
static uint32_t nrf_atomic_u32_xor ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical XOR operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand XOR operation
Returns
New value stored into atomic object
static uint32_t nrf_atomic_u32_xor_fetch ( nrf_atomic_u32_t * p_data ,
uint32_t value
)
inline static

Logical XOR operation on an atomic object.

Parameters
[in] p_data Atomic memory pointer
[in] value Value of second operand XOR operation
Returns
Old value stored into atomic object