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author | Lennart Poettering <lennart@poettering.net> | 2017-12-22 13:08:14 +0100 |
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committer | Sven Eden <yamakuzure@gmx.net> | 2018-05-30 07:49:44 +0200 |
commit | 45aef547896d1e91b2b2a121566320b5c3a17948 (patch) | |
tree | 4e4684c715e966e9fc6edfdc89def6c31124663d /.gitattributes | |
parent | 7cfc65cbfb5fb2e06710cab0d5008a0643735d49 (diff) |
tree-wide: introduce new safe_fork() helper and port everything over
This adds a new safe_fork() wrapper around fork() and makes use of it
everywhere. The new wrapper does a couple of things we previously did
manually and separately in a safer, more correct and automatic way:
1. Optionally resets signal handlers/mask in the child
2. Sets a name on all processes we fork off right after forking off (and
the patch assigns useful names for all processes we fork off now,
following a systematic naming scheme: always enclosed in () – in order
to indicate that these are not proper, exec()ed processes, but only
forked off children, and if the process is long-running with only our
own code, without execve()'ing something else, it gets am "sd-" prefix.)
3. Optionally closes all file descriptors in the child
4. Optionally sets a PR_SET_DEATHSIG to SIGTERM in the child, in a safe
way so that the parent dying before this happens being handled
safely.
5. Optionally reopens the logs
6. Optionally connects stdin/stdout/stderr to /dev/null
7. Debug logs about the forked off processes.
Diffstat (limited to '.gitattributes')
0 files changed, 0 insertions, 0 deletions