fix(process): fork_detached created zombie processes #2285
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Since the forked processes are still our children, we need to wait on them, otherwise they become zombie processes. We now fork twice, let the first fork immediately return and wait on it. This reparents the second fork, which runs the actual code, to the init process which then collects it. Ref polybar#770
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## hotfix/3.5.1 #2285 +/- ##
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- Coverage 7.22% 7.21% -0.02%
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Files 156 156
Lines 10707 10730 +23
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Hits 774 774
- Misses 9933 9956 +23
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This was referenced Dec 12, 2020
patrick96
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Changelog **Features** * config: Multiple inheritance (#2271), see #2269 **Fixes** * (#2285), see #770, #2289 * Timer module: Polybar crash when interval is set to 0 (#2274), see #2273 * `custom/menu`: Wrong level numbers in error messages (#2264) * `internal/xworkspaces`: Ignored certain workspace updates (#2275), see #2272 * Logger: Undefined behavior (#2284) * build: * Build issues in older clang versions (#2270, #2279, #2280)
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Description
Since the forked processes are still our children, we need to wait on
them, otherwise they become zombie processes.
We now fork twice, let the first fork immediately return and wait on it.
This reparents the second fork, which runs the actual code, to the init
process which then collects it.
Related Issues & Documents
Ref #770
Documentation (check all applicable)