In article <[EMAIL PROTECTED]>,
Grant Edwards <[EMAIL PROTECTED]> wrote:
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>You can also use a network port instead of a file. Binding a
>socket to a port is an exclusive and atomic operation. An
>advantage to the network port scheme is that the "lock"
>automatically goes away if the program dies. A disadvantiage is
>that it can't contain information (date/time/PID) like a file
>can.
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While you write elsewhere in this thread, Grant, that
pid-in-a-file is the "usual" way, I much prefer this
technique of opening a simple TCP/IP server. While I
recognize the disadvantage you describe, I choose to
regard it as an opportunity--since I have launched the
server anyway, I simply have it report to me (that is,
any connecting client) all the information I might want
want.
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