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| author | Noah Misch <noah@leadboat.com> | 2019-09-13 19:33:30 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2019-09-13 19:33:30 -0700 |
| commit | f380c5190134a4e928bf30a4ff9fec775cdcc692 (patch) | |
| tree | 007cb944a3a48cf601bc5f2f48cda379c11e1cb9 /src | |
| parent | b360e0fcd7dcffe3238187209911a6f523057b0c (diff) | |
| download | postgresql-f380c5190134a4e928bf30a4ff9fec775cdcc692.tar.gz postgresql-f380c5190134a4e928bf30a4ff9fec775cdcc692.zip | |
Test pg_atomic_fetch_add_ with variable addend and 16-bit edge cases.
Back-patch to 9.5, which introduced these functions.
Reviewed by Tom Lane.
Discussion: https://postgr.es/m/20190831071157.GA3251746@rfd.leadboat.com
Diffstat (limited to 'src')
| -rw-r--r-- | src/test/regress/regress.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/test/regress/regress.c b/src/test/regress/regress.c index 826556eb294..8cc1568a3dd 100644 --- a/src/test/regress/regress.c +++ b/src/test/regress/regress.c @@ -687,7 +687,7 @@ test_atomic_uint32(void) if (pg_atomic_read_u32(&var) != 3) elog(ERROR, "atomic_read_u32() #2 wrong"); - if (pg_atomic_fetch_add_u32(&var, 1) != 3) + if (pg_atomic_fetch_add_u32(&var, pg_atomic_read_u32(&var) - 2) != 3) elog(ERROR, "atomic_fetch_add_u32() #1 wrong"); if (pg_atomic_fetch_sub_u32(&var, 1) != 4) @@ -712,6 +712,20 @@ test_atomic_uint32(void) if (pg_atomic_fetch_add_u32(&var, INT_MAX) != INT_MAX) elog(ERROR, "pg_atomic_add_fetch_u32() #3 wrong"); + pg_atomic_fetch_add_u32(&var, 2); /* wrap to 0 */ + + if (pg_atomic_fetch_add_u32(&var, PG_INT16_MAX) != 0) + elog(ERROR, "pg_atomic_fetch_add_u32() #3 wrong"); + + if (pg_atomic_fetch_add_u32(&var, PG_INT16_MAX + 1) != PG_INT16_MAX) + elog(ERROR, "pg_atomic_fetch_add_u32() #4 wrong"); + + if (pg_atomic_fetch_add_u32(&var, PG_INT16_MIN) != 2 * PG_INT16_MAX + 1) + elog(ERROR, "pg_atomic_fetch_add_u32() #5 wrong"); + + if (pg_atomic_fetch_add_u32(&var, PG_INT16_MIN - 1) != PG_INT16_MAX) + elog(ERROR, "pg_atomic_fetch_add_u32() #6 wrong"); + pg_atomic_fetch_add_u32(&var, 1); /* top up to UINT_MAX */ if (pg_atomic_read_u32(&var) != UINT_MAX) @@ -787,7 +801,7 @@ test_atomic_uint64(void) if (pg_atomic_read_u64(&var) != 3) elog(ERROR, "atomic_read_u64() #2 wrong"); - if (pg_atomic_fetch_add_u64(&var, 1) != 3) + if (pg_atomic_fetch_add_u64(&var, pg_atomic_read_u64(&var) - 2) != 3) elog(ERROR, "atomic_fetch_add_u64() #1 wrong"); if (pg_atomic_fetch_sub_u64(&var, 1) != 4) |