cb_list.h File Reference

manage lists of callback functions More...

Go to the source code of this file.

Data Structures
struct	cb_list_entry_s
	Callback List entry type. More...
Typedefs
typedef uint16_t(*	cb_function_t )(void *)
	callback function type
typedef struct cb_list_entry_s	cb_list_entry_t
	Callback List entry type.
typedef cb_list_entry_t *	cb_list_t
	type pointer to a callback list
Functions
void	callback_iterate (cb_list_t list)
	call all functions in callback list
uint16_t	callback_iterate_and_until0 (cb_list_t list)
	call functions in callback list, until AND of results is 0
void	cb_register_call (cb_list_t *list, cb_function_t fkt2call, void *arg)
	Register a call back function into the given list.

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Detailed Description

manage lists of callback functions

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Typedef Documentation

typedef struct cb_list_entry_s cb_list_entry_t

Callback List entry type.

The register function will dynamically create a new entry based on this type

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Function Documentation

void callback_iterate

(

cb_list_t

list

)

[inline]

call all functions in callback list

Iterates over all functions registered in list

Parameters:

list

pointer to first item in list

{
  cb_list_entry_t * p;
  for (p = list; p; p = p->next_entry) {
    (*p->pTargetFkt) (p->FktArg);
  }
}

void cb_register_call	(	cb_list_t *	list,
		cb_function_t	fkt2call,
		void *	arg
	)			[inline]

Register a call back function into the given list.

The function will add an entry to the list of functions to be called

The new entry is added to the front of the list.

Parameters:

	list	pointer to list variable
	fkt2call	function to be called
	arg	argument to give to fkt2call

{
  cb_list_entry_t * n;

  // create new element
  n = malloc(sizeof(cb_list_entry_t));
  // link in current start element
  n->next_entry = *list;
  // initialize
  n->pTargetFkt = fkt2call;
  n->FktArg = arg;
          
  // store new element into first
  *list = n;
}