From: Andrew Bartlett <abartlet@samba.org>
Date: Fri, 21 Feb 2020 20:45:39 +0000 (+1300)
Subject: lib/tfork: Improve process titles for the tfork waiter process
X-Git-Tag: ldb-2.2.0~1569
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f50bd0d0509d20cd7b689bf366897ed8800e2435;p=thirdparty%2Fsamba.git

lib/tfork: Improve process titles for the tfork waiter process

This makes it easier to understand the process graph as there is
not a duplicate (eg) ldap[master] process for each tfork waiter.
when useing "ps -ef -o pid,comm"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14287

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
---

diff --git a/lib/util/tfork.c b/lib/util/tfork.c
index 16ea002b87c..5a5d449ecf8 100644
--- a/lib/util/tfork.c
+++ b/lib/util/tfork.c
@@ -26,6 +26,7 @@
 #include "lib/util/sys_rw.h"
 #include "lib/util/tfork.h"
 #include "lib/util/debug.h"
+#include "lib/util/util_process.h"
 
 #ifdef HAVE_PTHREAD
 #include <pthread.h>
@@ -572,6 +573,7 @@ static pid_t tfork_start_waiter_and_worker(struct tfork_state *state,
 	 * The "waiter" child.
 	 */
 	setproctitle("tfork waiter process");
+	prctl_set_comment("tfork waiter");
 	CatchSignal(SIGCHLD, SIG_DFL);
 
 	close(status_sp_caller_fd);
@@ -603,6 +605,8 @@ static pid_t tfork_start_waiter_and_worker(struct tfork_state *state,
 		return 0;
 	}
 	state->worker_pid = pid;
+	setproctitle("tfork waiter process(%d)", pid);
+	prctl_set_comment("tfork(%d)", pid);
 
 	close(ready_pipe_worker_fd);