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| author | Andrew Dunstan <andrew@dunslane.net> | 2022-11-22 10:35:04 -0500 |
|---|---|---|
| committer | Andrew Dunstan <andrew@dunslane.net> | 2022-11-22 10:52:42 -0500 |
| commit | baa78ff5404c9d870309207edbb168e1ec7c5af7 (patch) | |
| tree | 98b8798003185bfff89710411b0bee4da7235b82 /src/backend/utils/adt/selfuncs.c | |
| parent | e9c8907c3b39de09618c3f62c499f45c22ca8ce7 (diff) | |
| download | postgresql-baa78ff5404c9d870309207edbb168e1ec7c5af7.tar.gz postgresql-baa78ff5404c9d870309207edbb168e1ec7c5af7.zip | |
Prevent port collisions between concurrent TAP tests
Currently there is a race condition where if concurrent TAP tests both
test that they can open a port they will assume that it is free and use
it, causing one of them to fail. To prevent this we record a reservation
using an exclusive lock, and any TAP test that discovers a reservation
checks to see if the reserving process is still alive, and looks for
another free port if it is.
Ports are reserved in a directory set by the environment setting
PG_TEST_PORT_DIR, or if that doesn't exist a subdirectory of the top
build directory as set by Makefile.global, or its own
tmp_check directory.
The prove_check recipe in Makefile.global.in is extended to export
top_builddir to the TAP tests. This was already exported by the
prove_installcheck recipes.
Per complaint from Andres Freund
Backpatched from 9b4eafcaf4 to all live branches
Discussion: https://postgr.es/m/20221002164931.d57hlutrcz4d2zi7@awork3.anarazel.de
Diffstat (limited to 'src/backend/utils/adt/selfuncs.c')
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