wakeup | HTTP API and front-end for sending Wake-on-LAN messages | Runtime Evironment library

Task description:

Write a program that reads an positive integer value n (n > 3), then creates n threads (each thread has id; id starts from 1) and works until it receives a stop signal. All of n threads are waiting for a signal. Every second main thread sends a signal for a random thread, then that thread should print its id and return to a waiting state.

Requirements:

All additional threads should be finished correctly. At the thread function exit, a message about exit should be printed. While the thread is waiting for the condition variable, spurious wakeup should be checked. Only std::cout allowed for text output. Stop signal is SIGINT (ctrl+c).

I have written the following code for the above question but in output, all the threads are not exiting. I am not able to figure out the problem as I am new to this topic. Any kind of help will be really appreciated.

I installed android alarm manager package and print code on background its work well. But how can show my alarm screen like WhatsApp receive call for example, can I do this with flutter ?

In POSIX, because of "spurious wakeup" problem, programmers are forced to use while() instead of if when checking condition.

I think spurious wakeup is unintuitive and confusing problem, but I thought it's an inevitable problem.

Recently, I found that event objects of win32 doesn't have "spurious wakeup" problem.

Why POSIX system and other systems still use condition variable which has "spurious wakeup" problem? (despite this can be solved?)

For Java 9 and on, I understand that private interface methods can be declared and implemented in the interface, then called by default interface methods (of the same interface).

But, private interface methods cannot be called by static interface methods.

Now, I also understand that private static interface methods can be declared/implemented in the interface, then called by default as well as static methods.

So it seems to me that the abilities of a private static interface method is a 'superset' of a private interface method.

If that is the case, is there any situation where using a private interface method is preferable to using a private static interface method?

For example:

In Python 3.8, concurrent.futures.ProcessPoolExecutor has been updated to limit the max number of workers (processes) able to be used on Windows to 61. For the reasons why, see this and this, but to my understanding:

• On Windows, multiprocessing calls the Windows API function WaitForMultipleObjects, which is used to wait for processes to finish. It can wait on, at most, 63 objects, less the result queue reader and thread wakeup reader, hence the 61 limit. (i.e. Windows uses a thread per process to track processes).

(see also this SO issue)

multiprocessing, however, still uses os.cpu_count(). It throws a Value Error at first, but then continues on and uses 100% of my CPU cores. For example,

I have a following project directory:

The PubSub tab of the console shows that there is a message that wasn't acknowledged (probably answering my question on whether one needs to acknowledge pubsub messages: Do I need to consume pubsub messages?).

How do I reset the unacknowledged messages?

The device has the following code:

I am trying to plot histogram data with pandas and matplotlib. I am using the dataframe.plot() function. The problem is, that this generates a graph with a lot of displayed ticks on the x-axis. histogram plot

The index of the dataframe is used as ticks. Here is the code:

I have a script which does things with screen brightness, works fine that's cool and now I want to make it run after wake up from suspend.

So I tried using systemd, I have a file under /etc/systemd/system/myscript.service which is as follows: