From: Andre Noll <maan@tuebingen.mpg.de>
Date: Mon, 16 Oct 2017 15:36:51 +0000 (+0200)
Subject: run: Wait for children to die.
X-Git-Tag: v1.0.0~7^2~1
X-Git-Url: http://git.tuebingen.mpg.de/dss.git/log?p=dss.git;a=commitdiff_plain;h=96c620fcf383faffb16c89c2ddd9b0857de6dfbb

run: Wait for children to die.

When the select loop returns and dss is about to terminate, it sends
SIGTERM to any running rm or rsync processes and exits. It does not
wait for these processes to die, however. This is trivial to implement,
and it makes life easier for shutdown scripts which like to proceed
with unmounting file systems.
---

diff --git a/dss.c b/dss.c
index 3e626ab..e9bd56a 100644
--- a/dss.c
+++ b/dss.c
@@ -1565,6 +1565,8 @@ static int com_run(void)
 		ret = -E_BUG;
 	kill_children();
 	exit_hook(ret);
+	while (wait(NULL) >= 0 || errno != ECHILD)
+		; /* still have children to wait for */
 	return ret;
 }
 EXPORT_CMD_HANDLER(run);