Thread data
[L4 Thread Library API Reference]

Functions
L4_CV int	l4thread_data_allocate_key (void)
	Allocate new data key.
L4_CV void	l4thread_data_release_key (int key)
	Release data key.
L4_CV int	l4thread_data_set_current (int key, void *data)
	Set data pointer for current thread.
L4_CV void *	l4thread_data_get_current (int key)
	Get data pointer for current thread.
L4_CV int	l4thread_data_set (l4thread_t thread, int key, void *data)
	Set data pointer.
L4_CV void *	l4thread_data_get (l4thread_t thread, int key)
	Get data pointer.

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Function Documentation

L4_CV int l4thread_data_allocate_key

(

void

)

Allocate new data key.

Returns:

New data key, -L4_ENOKEY if no key available.

L4_CV void l4thread_data_release_key

(

int

key

)

Release data key.

Parameters:

key

data key

L4_CV int l4thread_data_set_current	(	int	key,
		void *	data
	)

Set data pointer for current thread.

Parameters:

	key	data key
	data	data pointer

Returns:

0 on success, -L4_EINVAL if invalid or unused data key.

L4_CV void* l4thread_data_get_current

(

int

key

)

Get data pointer for current thread.

Parameters:

key

data key

Returns:

Data pointer, NULL if invalid or unused data key.

L4_CV int l4thread_data_set	(	l4thread_t	thread,
		int	key,
		void *	data
	)

Set data pointer.

Parameters:

	thread	thread id
	key	data key
	data	data pointer

Returns:

0 on success, -L4_EINVAL if invalid or unused data key / thread.

L4_CV void* l4thread_data_get	(	l4thread_t	thread,
		int	key
	)

Get data pointer.

Parameters:

	thread	thread id
	key	data key

Returns:

Data pointer, NULL if invalid or unused data key / thread.