r6.0.1:lfds601_queue_guaranteed_enqueue
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Source Files
/liblfds601/src/lfds601_queue/lfds601_queue_queue.c /liblfds601/inc/liblfds601.h
Prototype
int lfds601_queue_guaranteed_enqueue( struct lfds601_queue_state *qs, void *user_data );
Parameters
struct lfds601_queue_state *qs
- A queue state as allocated by lfds601_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 lfds601_queue_enqueue fails only when the queue's freelist is empty. In this event, lfds601_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.