I am using Service Class on the Android O OS. I plan to use the Service in the background. The Android documentation states that If your app targets API level 26 or higher, the system imposes restrictions on using or creating background services unless the app itself is in the foreground. If an app needs … Read more
What would be a more simplified description of file descriptors compared to Wikipedia’s? Why are they required? Say, take shell processes as an example and how does it apply for it? Does a process table contain more than one file descriptor. If yes, why? 12 s 12 In simple words, when you open a file, … Read more
I am trying to use the perfmon windows utility to debug memory leaks in a process. This is how perfmon explains the terms: Working Set is the current size, in bytes, of the Working Set of this process. The Working Set is the set of memory pages touched recently by the threads in the process. … Read more
I would like to determine the operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability? 22 s 22 … Read more
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 7 years ago. Improve this question One thing I’ve always wanted to do is develop my very own operating system (not necessarily fancy like Linux … Read more
Is there any difference between a binary semaphore and mutex or are they essentially the same? 36 s 36
What is the technical difference between a process and a thread? I get the feeling a word like ‘process’ is overused and there are also hardware and software threads. How about light-weight processes in languages like Erlang? Is there a definitive reason to use one term over the other? 3 37
What is the most elegant way to check if the directory a file is going to be written to exists, and if not, create the directory using Python? Here is what I tried: import os file_path = “/my/directory/filename.txt” directory = os.path.dirname(file_path) try: os.stat(directory) except: os.mkdir(directory) f = file(filename) Somehow, I missed os.path.exists (thanks kanja, Blair, … Read more
