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| author | Lennart Poettering <lennart@poettering.net> | 2021-11-03 15:55:14 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2021-11-03 15:57:02 +0100 |
| commit | 883946f0d2a8d8086749636b729719c22c0c0dba (patch) | |
| tree | e35cae57b21cdab4f05f56f32ad9c55372691b5b /src/basic/process-util.h | |
| parent | 2c1612100daae9cef1b71c06ae4c4ec5f9378f09 (diff) | |
| download | systemd-883946f0d2a8d8086749636b729719c22c0c0dba.tar.gz | |
process-util: rework TAKE_PID() to be side-effect free
Diffstat (limited to 'src/basic/process-util.h')
| -rw-r--r-- | src/basic/process-util.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/basic/process-util.h b/src/basic/process-util.h index c7622c98df..25dea35ce6 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_; \ }) |