Visible to Intel only — GUID: GUID-B732C6D2-0713-4282-8BAB-BAD2ED68F9EE
Visible to Intel only — GUID: GUID-B732C6D2-0713-4282-8BAB-BAD2ED68F9EE
Iterating Over a Concurrent Queue for Debugging
The template classes concurrent_queue and concurrent_bounded_queue support STL-style iteration. This support is intended only for debugging, when you need to dump a queue. The iterators go forwards only, and are too slow to be very useful in production code. If a queue is modified, all iterators pointing to it become invalid and unsafe to use. The following snippet dumps a queue. The operator<< is defined for a Foo.
concurrent_queue<Foo> q; ... typedef concurrent_queue<Foo>::const_iterator iter; for(iter i(q.unsafe_begin()); i!=q.unsafe_end(); ++i ) { cout << *i; }
The prefix unsafe_ on the methods is a reminder that they are not concurrency safe.
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