WebAug 27, 2024 · Additionally, if I recall correctly, TryGetValue is not atomic/thread safe so you could just as easily perform one check for existence and another to grab and operate on the value – Marie Sep 19, 2024 at 19:43 1 @Marie, indeed the whole of the Dictionary class is not thread-safe. WebMay 6, 2014 · 1 Answer. Sorted by: 2. If you just used your original code ( TryGetValue followed by an indexer set) with ConcurrentDictionary, then that wouldn't be thread-safe. …
ConcurrentDictionary Is Not Always Thread-Safe Bar Arnon
WebJun 23, 2016 · A Dictionary can support multiple readers concurrently, as long as the collection is not modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure. In the rare case where an enumeration contends with write accesses, the collection must be locked during the entire enumeration. WebJul 28, 2024 · the .NET Dictionary is thread-safe, as long as it is used only in read access, thus not requiring locks in reading methods. You are playing with fire here. Your statement is only true iff no thread will modify the dictionary. davey o\\u0027brien award
Multithreading for Dictionary reads and Concurrent Dictionary …
WebMay 17, 2024 · Thread safety is a computer programming concept applicable to multi-threaded code. A program may execute code in several threads simultaneously in a shared address space where each of those... WebFeb 1, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. WebOct 2, 2012 · It's safe for reads, but only if nothing is writing to it. If you need to be able to update the dictionary while other objects are reading it, it needs protection. Note that, if you need to send an "entire dictionary to a client", I'd actually make a copy of the ConcurrentDictionary within a Dictionary, and send the copy. gas buddy prices hattiesburg ms