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Tom Lane 44fc6e259b Centralize setup of SIGQUIT handling for postmaster child processes. ... We decided that the policy established in commit 7634bd4f6 for the bgwriter, checkpointer, walwriter, and walreceiver processes, namely that they should accept SIGQUIT at all times, really ought to apply uniformly to all postmaster children. Therefore, get rid of the duplicative and inconsistent per-process code for establishing that signal handler and removing SIGQUIT from BlockSig. Instead, make InitPostmasterChild do it. The handler set up by InitPostmasterChild is SignalHandlerForCrashExit, which just summarily does _exit(2). In interactive backends, we almost immediately replace that with quickdie, since we would prefer to try to tell the client that we're dying. However, this patch is changing the behavior of autovacuum (both launcher and workers), as well as walsenders. Those processes formerly also used quickdie, but AFAICS that was just mindless copy-and-paste: they don't have any interactive client that's likely to benefit from being told this. The stats collector continues to be an outlier, in that it thinks SIGQUIT means normal exit. That should probably be changed for consistency, but there's another patch set where that's being dealt with, so I didn't do so here. Discussion: https://postgr.es/m/644875.1599933441@sss.pgh.pa.us		5 years ago
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backend	Centralize setup of SIGQUIT handling for postmaster child processes.	5 years ago
bin	Avoid retrieval of CHECK constraints and DEFAULT exprs in data-only dump	5 years ago
common	Skip unnecessary stat() calls in walkdir().	5 years ago
fe_utils	Message fixes and style improvements	5 years ago
include	Don't fetch partition check expression during InitResultRelInfo.	5 years ago
interfaces	Add libpq's openssl dependencies to pkg-config file	5 years ago
makefiles	Remove libpq.rc, use win32ver.rc for libpq	6 years ago
pl	Remove unused parameter	5 years ago
port	Add d_type to our Windows dirent emulation.	5 years ago
template	Fix compiler warning for ppoll() on Cygwin	6 years ago
test	Fix use-after-free bug with event triggers in an extension script	5 years ago
timezone	Ensure that distributed timezone abbreviation files are plain ASCII.	6 years ago
tools	New contrib module, pg_surgery, with heap surgery functions.	5 years ago
tutorial	doc: Change table alias names to lower case in tutorial chapter	5 years ago
.gitignore	…
DEVELOPERS	…
Makefile	…
Makefile.global.in	Split Makefile symbol CFLAGS_VECTOR into two symbols.	5 years ago
Makefile.shlib	Add PostgreSQL home page to --help output	6 years ago
nls-global.mk	NLS: Fix backend gettext triggers	6 years ago