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| author | June McEnroe <june@causal.agency> | 2021-09-27 16:12:45 +0000 |
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| committer | June McEnroe <june@causal.agency> | 2021-09-27 16:12:45 +0000 |
| commit | c1fcf0416ed960b669b2a4194684e2dbb1749fd3 (patch) | |
| tree | 1e2e7cf65d5022d6816189e92a16449cf10d95b4 /image.c | |
| parent | Copy CSVs to web directory from snapshot.sh (diff) | |
| download | torus-c1fcf0416ed960b669b2a4194684e2dbb1749fd3.tar.gz torus-c1fcf0416ed960b669b2a4194684e2dbb1749fd3.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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