[PATCH 0/3] daemon: explicitly allow EINTR during poll()

["Carlo Marcelo Arenas Belón via GitGitGadget" <gitgitgadget@gmail.com>]

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.

The main change is implemented in the third patch, but the changes to
prepare for it that were done in the second patch, also solve a know crasher
in AIX.

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/posix.h   |  7 +++++++
 config.mak.uname |  7 ++++---
 configure.ac     |  5 +++++
 daemon.c         | 30 +++++++++++++++++++++++++-----
 meson.build      |  1 +
 6 files changed, 48 insertions(+), 8 deletions(-)


base-commit: cb3b40381e1d5ee32dde96521ad7cfd68eb308a6
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-2002%2Fcarenas%2Fsiginterrupt-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-2002/carenas/siginterrupt-v1
Pull-Request: https://github.com/git/git/pull/2002
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