diff options
| author | Noah Misch <noah@leadboat.com> | 2019-09-13 19:33:30 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2019-09-13 19:33:47 -0700 |
| commit | e6a90ded5a6c2085a71b0e564451b48e800f4e8f (patch) | |
| tree | e737e340c088e337a91dcecd15cd38c4e8a96f3b | |
| parent | 4f7dbf0ef50b0569cfac1d604eb721c89ee65647 (diff) | |
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
| -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 884c40ee2f8..8839af47f3e 100644 --- a/src/test/regress/regress.c +++ b/src/test/regress/regress.c @@ -928,7 +928,7 @@ 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) @@ -953,6 +953,20 @@ 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) @@ -1028,7 +1042,7 @@ 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) |