This series addresses and ambiguity that is at least visible in OpenBSD,
where zombie proceses would only be cleared after a new connection is
received.

The underlying problem is that when this code was originally introduced,
SA_RESTART was not widely implemented, and the signal() call usually
implemented SysV like semantics, at least until it started being
reimplemented by calling sigaction() internally.

Changes since v1

 * Almost all references to siginterrupt has been removed and a better named
   variable used instead
 * Changes had been anstracted to minimize ifdefs and their introduction
   staged more naturally

Carlo Marcelo Arenas Belón (3):
  compat/posix.h: track SA_RESTART fallback
  daemon: use sigaction() to install child_handler()
  daemon: explicitly allow EINTR during poll()

 Makefile             |  6 +++++
 compat/mingw-posix.h |  1 -
 compat/posix.h       |  8 +++++++
 config.mak.uname     |  7 +++---
 configure.ac         | 17 +++++++++++++++
 daemon.c             | 52 +++++++++++++++++++++++++++++++++++++++-----
 meson.build          |  4 ++++
 7 files changed, 85 insertions(+), 10 deletions(-)

base-commit: cb3b40381e1d5ee32dde96521ad7cfd68eb308a6

Submitted-As: https://lore.kernel.org/git/pull.2002.v2.git.git.1750836928.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.2002.git.git.1750774122.gitgitgadget@gmail.com