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Date: Fri, 22 Jan 2010 14:33:33 -0500
Message-ID: <cc67648e1001221133g1916e16l9d455d3d88ac2e10@mail.gmail.com>
Subject: Re: reopening of logs without restarting
From: Jeff Trawick <trawick@gmail.com>
To: dev@httpd.apache.org
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2010/1/22 Mikhail T. <mi+thun@aldan.algebra.com>:
> 22.01.2010 14:03, Jeff Trawick =CE=C1=D0=C9=D3=C1=D7(=CC=C1):
>>>
>>> > =9ACurrently there are ap_run_open_logs and worker_open_logs. Can my
>>> > =9Ahypothetical signal-handler simply go through the list of opened
>>> > =9Adescriptors, set them to new values and close the old?
>>>
>>
>> You'd need to do that in every child process, without interfering with
>> current log file use.
>>
>
> Yes, of course -- I'll open up a new file descriptor (or FILE* ?) first, =
and
> then assign the new value to the field in the relevant structure -- up un=
til
> that assignment, the current log-file use will continue using the earlier
> descriptor.
>
> Is not worker_open_logs() running in every child process?

no

the "worker" in that name just means that it is the open_logs hook for
the worker MPM; the open_logs hook runs only in the parent (in fact
worker_open_logs() doesn't open any logs file; it uses that hook to
open listening sockets)