r6.1.1:lfds611_queue_guaranteed_enqueue

Source Files

/liblfds611/src/lfds611_queue/lfds611_queue_queue.c
/liblfds611/inc/liblfds611.h

Prototype

int lfds611_queue_guaranteed_enqueue( struct lfds611_queue_state *qs, void *user_data );

Parameters

struct lfds611_queue_state *qs

A queue state as allocated by lfds611_queue_new.

void *user_data

A void pointer of user data which will be queued into the queue.

Return Value

Returns 1 on a successful enqueue. Returns 0 if enqueing failed. Enqueuing only fails if malloc fails.

Notes

The function lfds611_queue_enqueue fails only when the queue's freelist is empty. In this event, lfds611_queue_guaranteed_push can be called, which allocates a new element and enqueues using that new element, thus guaranteeing an enqueue, barring the event of malloc failure.

See Also

• lfds611_queue
• lfds611_queue_dequeue