priority-queue

i am sending messages in MSMQ by setting its priority. using C# can i get the message from MSMQ having high priority first? just like we get in Priority Queue. and one thing more.. suppose there are three priority level 0 - high 1- medium 2 - low the sequence in queue is 2001122221111100 now if i send message with high priority(0) where it will be placed?? by setting priority in MSMQ. will it behave like actual Priority Queue? MSMQ does support priority queuing of messages, however messages of the same priority are handled in order of arrival when dequeued. For example, if you send 3 messages,

I want to implement a timer queuing system using the C++ STL priority_queue container adapter. My problem is that I want to occasionally cancel a timer, however there are no interfaces that enable me to easily delete an item in the priority_queue that is not the top item. Any suggestions?. Thank you for your help. I had the exact same scenario once and did the following: the structure I kept in std::priority_queue contained only the time to sort by and an index to a std::vector<Handler> (in my case Handler was boost::function , but could as well be pointer to interface or function) when adding

A bit stuck here, might need your help. I want to read several BLE characteristics at once, some people suggest using PriorityQueue for that. I already know all the uuids, etc. just need a way to read several at once. Could anyone explain how exactly should it look like? Or maybe there is yet another easier solution? Thanks in advance, here is my code: public static final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() { PriorityQueue<BluetoothGattCharacteristic> queue = new PriorityQueue<BluetoothGattCharacteristic>(); // When connection state changes @Override public void

For message-oriented middleware that does not consistently support priority messages (such as AMQP) what is the best way to implement priority consumption when queues have only FIFO semantics? The general use case would be a system in which consumers receive messages of a higher priority before messages of a lower priority when a large backlog of messages exists in Queue(s). Given only FIFO support for a given single queue, you will of course have to introduce either multiple queues, an intermediary, or have a more complex consumer. Multiple queues could be handled in a couple of ways. The

I have a vector that I want to use to create a heap. I'm not sure if I should use the C++ make_heap function or put my vector in a priority queue? Which is better in terms of performance? When should I use one vs. the other? There's no difference in therms of performance. std::priority_queue is just an adapter class that wraps the container and the very same heap-related function calls into a class. The specification of the std::priority_queue openly states that. By building a heap-based priority queue from an exposed std::vector (by calling heap-related functions directly) you keep it open to

Does the F# library include a priority queue? Else can someone point to me an implementation of priority queue in F#? There's an implementation of a binomial heap here which is a common data structure for implementing priority queues. Take a look at http://lepensemoi.free.fr/index.php/tag/data-structure for a whole bunch of F# implementations of various data structures. FSharpx.Collections includes a functional Heap collection https://github.com/fsharp/fsharpx/blob/master/src/FSharpx.Core/Collections/Heap.fsi as well as a PriortityQueue interface for it https://github.com/fsharp/fsharpx/blob

Seems they both let you retrieve the minimum, which is what I need for Prim's algorithm, and force me to remove and reinsert a key to update its value. Is there any advantage of using one over the other, not just for this example, but generally speaking? Generally speaking, it is less work to track only the minimum element, using a heap. A tree is more organized, and it requires more computation to maintain that organization. But if you need to access any key, and not just the minimum, a heap will not suffice, and the extra overhead of the tree is justified. Leo Yee Totally agree with Erickson