I have a scenario where the shared memory area is exclusively accessed by two different processes. When I launch the processes, the first process successfully locks the mutex, updates the memory and unlock the mutex. But I observe that when the second process try to lock it, it is still in deadlock state, waiting for mutex to unlock.
Time difference between the mutex lock is 10s for first and second process.
I am using the std::mutex. Please tell me what I am missing.
std::mutex does not support interprocess operation but pthread library has interprocess mutex that you can use. Example here.