Determine if only one instance is running: Difference between revisions
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} |
} |
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}</lang> |
}</lang> |
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=={{header|Julia}}== |
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{{trans|Java}}<lang julia> |
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using Sockets |
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const portnum = 12345 |
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function canopen() |
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try |
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server = listen(portnum) |
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println("This is the only instance.") |
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sleep(20) |
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catch y |
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if findfirst("EADDRINUSE", string(y)) != nothing |
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println("There is already an instance running.") |
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end |
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end |
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end |
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canopen() |
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</lang> |
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=={{header|Kotlin}}== |
=={{header|Kotlin}}== |
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