cb_mux.h

cb_mux interface definitions

unsigned int cb_mux_cbid_t

cb_mux identifier type

void(* cb_mux_cb_t()

cb_mux callback type

struct cb_mux cb_mux_t

cb_mux list entry structure

void(* cb_mux_iter_t()

cb_mux iterate function callback type for cb_mux_iter

void cb_mux_add(cb_mux.h::cb_mux_t ** head, cb_mux.h::cb_mux_t * entry)

Add a new entry to the end of a cb_mux list.

Parameters

head:double pointer to first list entry entry:entry to add

void cb_mux_del(cb_mux.h::cb_mux_t ** head, cb_mux.h::cb_mux_t * entry)

Remove a entry from a cb_mux list.

Parameters

head:double pointer to first list entry entry:entry to remove

cb_mux.h::cb_mux_t * cb_mux_find_cbid(cb_mux.h::cb_mux_t * head, cb_mux.h::cb_mux_cbid_t cbid_val)

Find an entry in the list by ID.

Parameters

head:pointer to first list entry cbid_val:ID to find

Return values

• pointer to the list entry

cb_mux.h::cb_mux_t * cb_mux_find_low(cb_mux.h::cb_mux_t * head)

Find the entry with the lowest ID.

If there are multiple hits, this returns the oldest.

Parameters

head:pointer to first list entry

Return values

• pointer to the list entry

cb_mux.h::cb_mux_t * cb_mux_find_high(cb_mux.h::cb_mux_t * head)

Find the entry with the highest ID.

If there are multiple hits, this returns the oldest.

Parameters

head:pointer to first list entry

Return values

• pointer to the list entry

cb_mux.h::cb_mux_cbid_t cb_mux_find_free_id(cb_mux.h::cb_mux_t * head)

Find the lowest unused ID.

Returns highest possible ID on failure

Parameters

head:pointer to first list entry

Return values

• lowest unused ID

void cb_mux_iter(cb_mux.h::cb_mux_t * head, cb_mux.h::cb_mux_iter_t func, void * arg)

Run a function on every item in the cb_mux list.

Parameters

head:pointer to first list entry func:function to run on each entry arg:argument for the function

struct cb_mux

cb_mux list entry structure

struct cb_mux * next

next entry in the cb_mux list

cb_mux.h::cb_mux_cbid_t cbid

identifier for this callback

void * info

optional extra information

cb_mux.h::cb_mux_cb_t cb

callback function

void * arg

argument for callback function