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| author | June McEnroe <june@causal.agency> | 2021-09-27 16:12:45 +0000 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2021-09-27 16:12:45 +0000 |
| commit | 1338b8635c6d077510a7e00acc870f17f2568633 (patch) | |
| tree | a8d2b08660cb18f4cd1cd710738bf52f9f6fb4b1 /help.h | |
| parent | Copy CSVs to web directory from snapshot.sh (diff) | |
| download | torus-1338b8635c6d077510a7e00acc870f17f2568633.tar.gz torus-1338b8635c6d077510a7e00acc870f17f2568633.zip | |
Call msync(2) after modifying tiles
Without it, changes aren't visible to a process read(2)'ing the file until all mappings of the file are unmapped, on OpenBSD. There is apparently no guarantee that they are visible on other systems either. TIL.
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