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From: Cyrill Gorcunov <gorcunov@gmail.com>
To: tml <tarantool-patches@dev.tarantool.org>
Subject: [Tarantool-patches] [PATCH v2 6/7] popen: handle setsid os specifics
Date: Fri, 6 Mar 2020 17:30:47 +0300	[thread overview]
Message-ID: <20200306143047.GA27301@uranus> (raw)
In-Reply-To: <20200302201227.31785-7-gorcunov@gmail.com>

Due to os specifics we can't call setsid after
vfork on macos (vfork is not longer a part of
posix btw). Thus lets simply ignore it.

If there gonna be a strong need to drop
controlling terminal (we could use ioctl)
or setup new group we will enhance it.
But only if really needed.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
---

I pushed the new series into
gorcunov/gh-4031-popen-fixup-2

 src/lib/core/popen.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/lib/core/popen.c b/src/lib/core/popen.c
index 6e5ca21bd..40da05b52 100644
--- a/src/lib/core/popen.c
+++ b/src/lib/core/popen.c
@@ -833,9 +833,11 @@ popen_new(struct popen_opts *opts)
 		if (opts->flags & POPEN_FLAG_RESTORE_SIGNALS)
 			signal_reset();
 
+#ifndef TARGET_OS_DARWIN
 		/*
-		 * We have to be a session leader otherwise
-		 * won't be able to kill a group of children.
+		 * Note that on MacOS we're not allowed to
+		 * set sid after vfork (it is OS specific)
+		 * thus simply ignore this flag.
 		 */
 		if (opts->flags & POPEN_FLAG_SETSID) {
 			if (setsid() == -1) {
@@ -843,6 +845,7 @@ popen_new(struct popen_opts *opts)
 				goto exit_child;
 			}
 		}
+#endif
 
 		if (opts->flags & POPEN_FLAG_CLOSE_FDS) {
 			if (close_inherited_fds(skip_fds, nr_skip_fds)) {
-- 
2.20.1

  parent reply	other threads:[~2020-03-06 14:30 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-02 20:12 [Tarantool-patches] [PATCH 0/7] popen: various fixes and a test Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 1/7] core/say: Export logger fd Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 2/7] popen: allow accessing environ variable Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 3/7] popen: close_inherited_fds - add support for macos/freebsd Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 4/7] popen: log errors if popen creation failed Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 5/7] popen: add logging in child process Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 6/7] popen: handle setsid os specifics Cyrill Gorcunov
2020-03-03 11:38   ` Alexander Turenko
2020-03-03 11:45     ` Cyrill Gorcunov
2020-03-10 15:49       ` Alexander Turenko
2020-03-10 16:36         ` Alexander Turenko
2020-03-10 16:41           ` Cyrill Gorcunov
2020-03-10 17:12             ` Alexander Turenko
2020-03-10 17:40               ` Cyrill Gorcunov
2020-03-11  7:55               ` [Tarantool-patches] [PATCH v5 6/7] popen: handle sid on macos Cyrill Gorcunov
2020-03-06 14:30   ` Cyrill Gorcunov [this message]
2020-03-10  8:02     ` [Tarantool-patches] [PATCH v3 6/7] popen: use ioctl " Cyrill Gorcunov
2020-03-02 20:12 ` [Tarantool-patches] [PATCH 7/7] test/unit: add popen test Cyrill Gorcunov
2020-03-11 20:22   ` Alexander Turenko
2020-03-12 10:38     ` [Tarantool-patches] [PATCH v5 " Cyrill Gorcunov
2020-03-12 11:58 ` [Tarantool-patches] [PATCH 0/7] popen: various fixes and a test Alexander Turenko
2020-03-12 12:18   ` Cyrill Gorcunov
2020-03-16 15:58 ` Kirill Yukhin

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