diff options
Diffstat (limited to 'third_party/nix/tests/gc-concurrent.sh')
| -rw-r--r-- | third_party/nix/tests/gc-concurrent.sh | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/third_party/nix/tests/gc-concurrent.sh b/third_party/nix/tests/gc-concurrent.sh new file mode 100644 index 000000000000..d395930ca0dc --- /dev/null +++ b/third_party/nix/tests/gc-concurrent.sh @@ -0,0 +1,58 @@ +source common.sh + +clearStore + +drvPath1=$(nix-instantiate gc-concurrent.nix -A test1) +outPath1=$(nix-store -q $drvPath1) + +drvPath2=$(nix-instantiate gc-concurrent.nix -A test2) +outPath2=$(nix-store -q $drvPath2) + +drvPath3=$(nix-instantiate simple.nix) +outPath3=$(nix-store -r $drvPath3) + +(! test -e $outPath3.lock) +touch $outPath3.lock + +rm -f "$NIX_STATE_DIR"/gcroots/foo* +ln -s $drvPath2 "$NIX_STATE_DIR"/gcroots/foo +ln -s $outPath3 "$NIX_STATE_DIR"/gcroots/foo2 + +# Start build #1 in the background. It starts immediately. +nix-store -rvv "$drvPath1" & +pid1=$! + +# Start build #2 in the background after 10 seconds. +(sleep 10 && nix-store -rvv "$drvPath2") & +pid2=$! + +# Run the garbage collector while the build is running. +sleep 6 +nix-collect-garbage + +# Wait for build #1/#2 to finish. +echo waiting for pid $pid1 to finish... +wait $pid1 +echo waiting for pid $pid2 to finish... +wait $pid2 + +# Check that the root of build #1 and its dependencies haven't been +# deleted. The should not be deleted by the GC because they were +# being built during the GC. +cat $outPath1/foobar +cat $outPath1/input-2/bar + +# Check that build #2 has succeeded. It should succeed because the +# derivation is a GC root. +cat $outPath2/foobar + +rm -f "$NIX_STATE_DIR"/gcroots/foo* + +# The collector should have deleted lock files for paths that have +# been built previously. +(! test -e $outPath3.lock) + +# If we run the collector now, it should delete outPath1/2. +nix-collect-garbage +(! test -e $outPath1) +(! test -e $outPath2) |