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I want a non-blocking read function from console. How do I write that in C#?
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Sometimes it's convenient to have I/O that doesn't block i.e we don't want a read call to block on one in case of input from the other. Solution for this is the given function: To specify non-blocking option: #include<fcntl. h> int fd; fcntl(fd, F_SETFL, O_NONBLOCK);
In blocking mode read() will block; in non-blocking mode if there is no data it will return -1 with errno set to EAGAIN or EWOULDBLOCK depending in your platform.
Non blocking I/O Java NIO non- blocking mode allows the thread to request writing data to a channel, but not wait for it to be fully written. The thread is allowed to go on and do something else in a mean time.
Blocking refers to operations that block further execution until that operation finishes while non-blocking refers to code that doesn't block execution. Or as Node. js docs puts it, blocking is when the execution of additional JavaScript in the Node. js process must wait until a non-JavaScript operation completes.
Richard Dutton has a solution on his blog:
while (true) { if (Console.KeyAvailable) { ConsoleKeyInfo key = Console.ReadKey(true); switch (key.Key) { case ConsoleKey.F1: Console.WriteLine("You pressed F1!"); break; default: break; } } // Do something more useful } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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