Re: fork/exec patch: pre-CreateProcess finalization
От | Bruce Momjian |
---|---|
Тема | Re: fork/exec patch: pre-CreateProcess finalization |
Дата | |
Msg-id | 200401090048.i090m0911277@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: fork/exec patch: pre-CreateProcess finalization (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-patches |
Tom Lane wrote: > Bruce Momjian <pgman@candle.pha.pa.us> writes: > > My guess is that this used to proc_exit the postgres backend, but now > > proc_exits the postmaster, but that is only a guess. > > No. This is post-fork (and had better remain so). The change causes > the sub-postmaster that has just finished handling a cancel request > to exit with nonzero status, which the postmaster then interprets > (correctly) as a child process crash. > > BTW, how are we going to do cancels in Windows-land? The sub-postmaster > isn't gonna have access to the postmaster's list of child PIDs and > cancel keys ... I think the postmaster will have access to the cancel key and pid. It should work similar to Unix. However, I do have a win32 TODO item on "test cancel key", so we will not forget about it. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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