los_spinlock.h 文件参考

浏览源代码.

结构体
struct	Spinlock

类型定义
typedef struct Spinlock	SPIN_LOCK_S

函数
VOID	ArchSpinLock (size_t *lock)
VOID	ArchSpinUnlock (size_t *lock)
INT32	ArchSpinTrylock (size_t *lock)
VOID	LOS_SpinLock (SPIN_LOCK_S *lock)
	Lock the spinlock. 更多...
INT32	LOS_SpinTrylock (SPIN_LOCK_S *lock)
	Trying lock the spinlock. 更多...
VOID	LOS_SpinUnlock (SPIN_LOCK_S *lock)
	Unlock the spinlock. 更多...
VOID	LOS_SpinLockSave (SPIN_LOCK_S *lock, UINT32 *intSave)
	Lock the spinlock and disable all interrupts. 更多...
VOID	LOS_SpinUnlockRestore (SPIN_LOCK_S *lock, UINT32 intSave)
	Unlock the spinlock and restore interrupt flag. 更多...
BOOL	LOS_SpinHeld (const SPIN_LOCK_S *lock)
	Check if holding the spinlock. 更多...
VOID	LOS_SpinInit (SPIN_LOCK_S *lock)
	Spinlock initialization. 更多...

类型定义说明

SPIN_LOCK_S

typedef struct Spinlock SPIN_LOCK_S

函数说明

ArchSpinLock()

VOID ArchSpinLock

(

size_t *

lock

)

这是这个函数的调用关系图:

ArchSpinTrylock()

INT32 ArchSpinTrylock

(

size_t *

lock

)

这是这个函数的调用关系图:

ArchSpinUnlock()

VOID ArchSpinUnlock

(

size_t *

lock

)

这是这个函数的调用关系图:

LOS_SpinHeld()

BOOL LOS_SpinHeld

(

const SPIN_LOCK_S *

lock

)

Check if holding the spinlock.

Description:

This API is used to check if holding the spinlock.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.

返回值

TRUE	Holding the spinlock.
FALSE	Not Holding the spinlock.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

在文件 los_spinlock.h 第 249 行定义.

{
    (VOID)lock;
    return TRUE;
}

LOS_SpinInit()

VOID LOS_SpinInit

(

SPIN_LOCK_S *

lock

)

Spinlock initialization.

Description:

This API is used to initialize a spinlock.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.

返回值

None.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

在文件 los_spinlock.h 第 255 行定义.

{
    (VOID)lock;
}

LOS_SpinLock()

VOID LOS_SpinLock

(

SPIN_LOCK_S *

lock

)

Lock the spinlock.

Description:

This API is used to lock the spin lock.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.

返回值

None.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

参见

LOS_SpinUnlock

在文件 los_spinlock.h 第 221 行定义.

{
    (VOID)lock;
}

LOS_SpinLockSave()

VOID LOS_SpinLockSave	(	SPIN_LOCK_S *	lock,
		UINT32 *	intSave
	)

Lock the spinlock and disable all interrupts.

Description:

This API is used to lock the spin lock and disable all interrupts.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.
intSave	[OUT] Type UINT32 Saved interrupt flag for latter restored.

返回值

None.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

参见

LOS_SpinLock

在文件 los_spinlock.h 第 237 行定义.

{
    (VOID)lock;
    *intSave = LOS_IntLock();
}

函数调用图:

LOS_SpinTrylock()

INT32 LOS_SpinTrylock

(

SPIN_LOCK_S *

lock

)

Trying lock the spinlock.

Description:

This API is used to trying lock the spin lock.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.

返回值

LOS_OK	Got the spinlock.
LOS_NOK	Not getting the spinlock.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

参见

LOS_SpinLock

在文件 los_spinlock.h 第 226 行定义.

{
    (VOID)lock;
    return LOS_OK;
}

LOS_SpinUnlock()

VOID LOS_SpinUnlock

(

SPIN_LOCK_S *

lock

)

Unlock the spinlock.

Description:

This API is used to unlock the spin lock.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.

返回值

None.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

参见

LOS_SpinLock

在文件 los_spinlock.h 第 232 行定义.

{
    (VOID)lock;
}

LOS_SpinUnlockRestore()

VOID LOS_SpinUnlockRestore	(	SPIN_LOCK_S *	lock,
		UINT32	intSave
	)

Unlock the spinlock and restore interrupt flag.

Description:

This API is used to unlock the spin lock and restore interrupt flag.

注意

None.

参数

lock	[IN] Type SPIN_LOCK_S spinlock pointer.
intSave	[IN] Type UINT32 Interrupt flag to be restored.

返回值

None.

Dependency:

• los_spinlock.h: the header file that contains the API declaration.

参见

LOS_SpinUnlock

在文件 los_spinlock.h 第 243 行定义.

{
    (VOID)lock;
    LOS_IntRestore(intSave);
}

函数调用图: