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Re: Reduce the time to know trigger_fi​le's existence

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On 09/03/2012 04:30 PM, Harshitha S wrote:
Hi,
We are trying to introduce a thread that monitors the creation of the
trigger_file. As and when the file is created, the process that monitors
postgres server needs to be notified through the inotify API.

File system notification APIs aren't portable. If you want to implement this you'll need to support at least the Windows FSNotify stuff, notification features compatible with several different Linux versions and with the BSDs, with a fallback to polling for other platforms.

For Windows:

http://msdn.microsoft.com/en-us/library/windows/desktop/aa365261(v=vs.85).aspx

This will mean adding a new internal API and then adding backend/port/ implementations for various platforms, as well as taking the current code and splitting it out into a port file that gets used if no other is chosen.

This page is likely to be useful:

    http://wiki.postgresql.org/wiki/So,_you_want_to_be_a_developer%3F

--
Craig Ringer


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