BloombergLP::bdlcc::Queue::tryPopFront

Synopses

Declared in <bdlcc_queue.h>

Remove up to maxNumItems from the front of this queue.

void
tryPopFront(int maxNumItems);

Try to remove the first item into buffer without blocking.

int
tryPopFront(TYPE* buffer);

Same as the preceding overload, appending removed items to buffer.

void
tryPopFront(
    int maxNumItems,
    bsl::vector<TYPE>* buffer);

Same as the preceding overload, appending removed items to buffer.

void
tryPopFront(
    int maxNumItems,
    std::pmr::vector<TYPE>* buffer);

Same as the preceding overload, appending removed items to buffer.

void
tryPopFront(
    int maxNumItems,
    std::vector<TYPE>* buffer);

0 on success, and a non-zero value if the queue is empty

Name	Description
maxNumItems	maximum number of items to remove
buffer	receives the removed item on success