pgsql: Make archiver's SIGQUIT handler exit via _exit(). - Mailing list pgsql-committers

From Tom Lane
Subject pgsql: Make archiver's SIGQUIT handler exit via _exit().
Date
Msg-id E1kG5q2-0004dL-It@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Make archiver's SIGQUIT handler exit via _exit().

Commit 8e19a8264 changed the SIGQUIT handlers of almost all server
processes not to run atexit callbacks.  The archiver process was
skipped, perhaps because it's not connected to shared memory; but
it's just as true here that running atexit callbacks in a signal
handler is unsafe.  So let's make it work like the rest.

In HEAD and v13, we can use the common SignalHandlerForCrashExit
handler.  Before that, just tweak pgarch_exit to use _exit(2)
explicitly.

Like the previous commit, back-patch to all supported branches.

Kyotaro Horiguchi, back-patching by me

Discussion: https://postgr.es/m/1850884.1599601164@sss.pgh.pa.us

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/bedadc73220f7b09f29a4741dccd143a21a08dda

Modified Files
--------------
src/backend/postmaster/pgarch.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)


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