Then you want to use the waitpid function with the WNOHANG option: #include <sys/types.h> #include <sys/wait.h> int status; pid_t return_pid = waitpid(process_id, &status, WNOHANG); /* WNOHANG def’d in wait.h */ if (return_pid == -1) { /* error */ } else if (return_pid == 0) { /* child is still running */ } else if (return_pid … Read more
The JavaFX animations are probably the way to go, but the “thread philosophy” in JavaFX isn’t hard to work with if you want to roll your own, or do other, more complicated things in background threads. The following code will pause and change the value in a label (full disclosure, I’m reusing code I wrote … Read more
Let’s go through your options. Wait for all background jobs, unconditionally for i in 1 2 3 4 5; do cmd & done wait This has the benefit of being simple, but you can’t keep your machine busy. If you want to start new jobs as old ones complete, you can’t. You machine gets less … Read more
Lua doesn’t provide a standard sleep function, but there are several ways to implement one, see Sleep Function for detail. For Linux, this may be the easiest one: function sleep(n) os.execute(“sleep ” .. tonumber(n)) end In Windows, you can use ping: function sleep(n) if n > 0 then os.execute(“ping -n ” .. tonumber(n+1) .. ” … Read more
Thread.sleep(1000); // do nothing for 1000 miliseconds (1 second)
It looks to me as though the basic problem is that you have one wait() call rather than a loop that waits until there are no more children. You also only wait if the last fork() is successful rather than if at least one fork() is successful. You should only use _exit() if you don’t … Read more
Is it pausing, but you don’t see your red color appear in the cell? Try this: dataGridView1.Rows[x1].Cells[y1].Style.BackColor = System.Drawing.Color.Red; dataGridView1.Refresh(); System.Threading.Thread.Sleep(1000);
wait waits for a process to finish; sleep sleeps for a certain amount of seconds.
Here is a sample program that may somehow manages to demonstrate the capability of a selenium library to fulfill what you want. You need to download the selenium library and set it to your IDE first before you can run this program. The program allows you to click a button. Then the firefox browser automatically … Read more
You want something like this. I haven’t tested it, but hopefully you should get the idea. var dates = []; //<– Contains a list of dates for the coming week var baseUrl = “http://www.someserver.com”; var storedChannels = [1,2,3,4,5,6,7,8,9,10,45,23,56,34,23,67,23,567,234,67,345,465,67,34]; function ProcessNext(ch, d) { if (d < 7) { d++; } else { d=0; if (ch < … Read more