Hi, Can Latch - that postgres already uses, be used to achieve the same?
On Tue, Sep 4, 2012 at 6:31 AM, Craig Ringer <ring...@ringerc.id.au> wrote: > 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<http://msdn.microsoft.com/en-us/library/windows/desktop/aa365261%28v=vs.85%29.aspx> > > For Linux it appears that inotify has been present since 2005: > > http://en.wikipedia.org/wiki/**Inotify<http://en.wikipedia.org/wiki/Inotify> > > but it's probably best to add a configure test and fall back to polling if > it isn't found. > > > > > 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<http://wiki.postgresql.org/wiki/So,_you_want_to_be_a_developer%3F> > > -- > Craig Ringer >
