From 883946f0d2a8d8086749636b729719c22c0c0dba Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 3 Nov 2021 15:55:14 +0100 Subject: [PATCH] process-util: rework TAKE_PID() to be side-effect free --- src/basic/process-util.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/basic/process-util.h b/src/basic/process-util.h index c7622c98df5..25dea35ce6c 100644 --- a/src/basic/process-util.h +++ b/src/basic/process-util.h @@ -192,8 +192,9 @@ assert_cc(TASKS_MAX <= (unsigned long) PID_T_MAX); /* Like TAKE_PTR() but for child PIDs, resetting them to 0 */ #define TAKE_PID(pid) \ ({ \ - pid_t _pid_ = (pid); \ - (pid) = 0; \ + pid_t *_ppid_ = &(pid); \ + pid_t _pid_ = *_ppid_; \ + *_ppid_ = 0; \ _pid_; \ }) -- 2.47.3