For the following code in javascript I want to know if there are concurrent api requests to increment count is there any possibility of a race condition considering the fact that javascript is single threaded. app.post('/increment', async (req, res) =>…
please help. Description of the problem: I have a microservice which contains caching logic in Redis. On the server, many instances of this service are raised and they use a single cache. If all instances receive a request to get…
Using (writing) same variable in multiple threads simultaneously causes undefined behavior and crashes. Why using mutex, despite on fact that they are also variables, not causes undefined behavior? If mutex somehow can be used simultaneously, why not make all variables…
Consider below scenario: Thread 1 mutexLk1_ gcondVar_.wait(mutexLk1); Thread 2 mutexLk2_ gcondVar_.wait(mutexLk2); Thread 3 condVar_ gcondVar_.notify_all(); What I observe is that notify_all() does not wake up both the threads but just one on the two. If i were to replace mutexLk2…