osal_atomic

函数
int	osal_atomic_read (osal_atomic *atomic)
	read atomic variable
void	osal_atomic_set (osal_atomic *atomic, int i)
	set atomic variable
int	osal_atomic_inc_return (osal_atomic *atomic)
	increment atomic variable and return
int	osal_atomic_add_return (osal_atomic *atomic, int count)
	Adds the given value to the atomic variable and returns the increased result.
int	osal_atomic_dec_return (osal_atomic *atomic)
	decrement atomic variable and return
void	osal_atomic_inc (osal_atomic *atomic)
	increment atomic variable
void	osal_atomic_sub (osal_atomic *atomic, unsigned int count)
	Reduce a fixed number of atomic variables.
void	osal_atomic_dec (osal_atomic *atomic)
	decrement atomic variable
void	osal_atomic_add (osal_atomic *atomic, int count)
	Add a fixed number of atomic variables.
int	osal_atomic_dec_and_test (osal_atomic *atomic)
	decrement atomic variable and test
int	osal_atomic_inc_and_test (osal_atomic *atomic)
	increment atomic variable and test
int	osal_atomic_inc_not_zero (osal_atomic *atomic)
	increment unless the number is zero

详细描述

函数说明

osal_atomic_add()

void osal_atomic_add	(	osal_atomic *	atomic,
		int	count
	)

Add a fixed number of atomic variables.

Description:

Add a fixed number of atomic variables

参数

atomic	[in] The atomic to be change.
count	[in] Number of atomic variables to be add.

Support System:

freertos.

osal_atomic_add_return()

int osal_atomic_add_return	(	osal_atomic *	atomic,
		int	count
	)

Adds the given value to the atomic variable and returns the increased result.

Description:

Adds the given value to the atomic variable and returns the increased result.

参数

atomic	[in] The atomic to be change.
count	[in] Number of atomic variables to be add.

Support System:

freertos.

osal_atomic_dec()

void osal_atomic_dec

(

osal_atomic *

atomic

)

decrement atomic variable

Description:

This API is used to implement the atomic self-decrement.

Support System:

linux liteos freertos.

osal_atomic_dec_and_test()

int osal_atomic_dec_and_test

(

osal_atomic *

atomic

)

decrement atomic variable and test

Description:

This API is used to subtract 1 atomically from the variable atomic of the atomic type and checks whether the result is 0. If yes, true is returned. Otherwise, false is returned.

Support System:

linux.

osal_atomic_dec_return()

int osal_atomic_dec_return

(

osal_atomic *

atomic

)

decrement atomic variable and return

Description:

This API is used to implement the atomic self-decrement and return the self-decrement result.

Support System:

linux liteos freertos.

osal_atomic_inc()

void osal_atomic_inc

(

osal_atomic *

atomic

)

increment atomic variable

Description:

This API is used to implement the atomic self-addition.

Support System:

linux liteos freertos.

osal_atomic_inc_and_test()

int osal_atomic_inc_and_test

(

osal_atomic *

atomic

)

increment atomic variable and test

Description:

This API is used to add 1 atomically from the variable atomic of the atomic type and checks whether the result is 0. If yes, true is returned. Otherwise, false is returned.

Support System:

linux.

osal_atomic_inc_not_zero()

int osal_atomic_inc_not_zero

(

osal_atomic *

atomic

)

increment unless the number is zero

Description:

Atomically increments atomic by 1, if atomic is non-zero.

返回

Returns true if the increment was done.

Support System:

linux.

osal_atomic_inc_return()

int osal_atomic_inc_return

(

osal_atomic *

atomic

)

increment atomic variable and return

Description:

This API is used to implement the atomic self-addition and return the self-addition result.

Support System:

linux liteos freertos.

osal_atomic_read()

int osal_atomic_read

(

osal_atomic *

atomic

)

read atomic variable

Description:

This API is used to implement the atomic read and return the value read from the input parameter atomic.

Support System:

linux liteos freertos.

osal_atomic_set()

void osal_atomic_set	(	osal_atomic *	atomic,
		int	i
	)

set atomic variable

Description:

This API is used to implement the atomic setting operation.

Support System:

linux liteos freertos.

osal_atomic_sub()

void osal_atomic_sub	(	osal_atomic *	atomic,
		unsigned int	count
	)

Reduce a fixed number of atomic variables.

Description:

Reduce a fixed number of atomic variables

参数

atomic	[in] The atomic to be change.
count	[in] Number of atomic variables to be reduced.

Support System:

freertos.