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Why does InetAddress.isReachable return false, when I can ping the IP address?
...time.getRuntime().exec("ping -n 1 www.google.com");
int returnVal = p1.waitFor();
boolean reachable = (returnVal==0);
The -c option of ping will allow ping to simply try to reach the server once(as opposed to the infinite ping which we're used to using at the terminal).
This will return 0...
How to wait for 2 seconds?
...
The documentation for WAITFOR() doesn't explicitly lay out the required string format.
This will wait for 2 seconds:
WAITFOR DELAY '00:00:02';
The format is hh:mi:ss.mmm.
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phantomjs not waiting for “full” page load
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You could try a combination of the waitfor and rasterize examples:
/**
* See https://github.com/ariya/phantomjs/blob/master/examples/waitfor.js
*
* Wait until the test condition is true or a timeout occurs. Useful for waiting
* on a server response or fo...
process.waitFor() never returns
...
There are many reasons that waitFor() doesn't return.
But it usually boils down to the fact that the executed command doesn't quit.
This, again, can have many reasons.
One common reason is that the process produces some output and you don't read from...
Sleep Command in T-SQL?
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Look at the WAITFOR command.
E.g.
-- wait for 1 minute
WAITFOR DELAY '00:01'
-- wait for 1 second
WAITFOR DELAY '00:00:01'
This command allows you a high degree of precision but is only accurate within 10ms - 16ms on a typical machi...
Running Command Line in Java [duplicate]
...'s useful to check what the process returns with. You can get that with pr.waitFor(). So it looks like this: int retVal = pr.waitFor(). So if it's not 0, you can abort / clean up.
– Apache
Dec 10 '13 at 15:32
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How to read a single char from the console in Java (as the user types it)?
...{"/bin/sh", "-c", "stty raw </dev/tty"};
Runtime.getRuntime().exec(cmd).waitFor();
For example, if you want to take into account the time between keystrokes, here's sample code to get there.
share
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MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
...goDB.Driver.Internal.ReplicaSetConnector.Connect(TimeSpan timeout,
ConnectWaitFor waitFor)
at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout, ConnectWaitFor
waitFor)
at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout)
at MongoDB.Driver.MongoServer.Connect()
at
MagicMongoDBTool.Module...
MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
...goDB.Driver.Internal.ReplicaSetConnector.Connect(TimeSpan timeout,
ConnectWaitFor waitFor)
at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout, ConnectWaitFor
waitFor)
at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout)
at MongoDB.Driver.MongoServer.Connect()
at
MagicMongoDBTool.Module...
Implement C# Generic Timeout
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We are using code like this heavily in production:
var result = WaitFor<Result>.Run(1.Minutes(), () => service.GetSomeFragileResult());
Implementation is open-sourced, works efficiently even in parallel computing scenarios and is available as a part of Lokad Shared Libraries
/...