Software threads are threads of execution managed by the operating system. Hardware threads are a feature of some processors that allow better utilisation of the processor under some circumstances. They may be exposed to/by the operating system as appearing to be additional cores (“hyperthreading”). In Java, the threads you create maintain the software thread abstraction, … Read more
Edit: The question was a little confusing, so I’m answering it two different ways. OS-level threads vs Green Threads For clarity, I usually say “OS-level threads” or “native threads” instead of “Kernel-level threads” (which I confused with “kernel threads” in my original answer below.) OS-level threads are created and managed by the OS. Most languages … Read more
It’s important to understand that there are two aspects to thread safety. execution control, and memory visibility The first has to do with controlling when code executes (including the order in which instructions are executed) and whether it can execute concurrently, and the second to do with when the effects in memory of what has been done … Read more
Because it is a structure initializer, you cannot use it to init the structure in a statement apart from its declaration. It is defined on my system like so: Expanded and used, we see: That is, expands to:
A Monitor is an object designed to be accessed from multiple threads. The member functions or methods of a monitor object will enforce mutual exclusion, so only one thread may be performing any action on the object at a given time. If one thread is currently executing a member function of the object then any … Read more
Thread has a method that does that for you join which will block until the thread has finished executing.
Platform.setImplicitExit(false); solved my problem. I think they changed the implementation in JavaFX 8, so the same code that works without any issue in JavaFX 2 gives the not an fx application thread error there.
Eric Lippert has a nice blog post entitled What is this thing you call “thread safe”? about the definition of thread safety as found of Wikipedia. 3 important things extracted from the links : “A piece of code is thread-safe if it functions correctly during simultaneous execution by multiple threads.” “In particular, it must satisfy the need for … Read more
I don’t know why you’re using the Window’s Mutex instead of Python’s. Using the Python methods, this is pretty simple: But note, because of the architecture of CPython (namely the Global Interpreter Lock) you’ll effectively only have one thread running at a time anyway–this is fine if a number of them are I/O bound, although … Read more
You have to move the portion of the background task that updates the UI onto the main thread. There is a simple piece of code for this: Documentation for Activity.runOnUiThread. Just nest this inside the method that is running in the background, and then copy paste the code that implements any updates in the middle … Read more