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util: add _GiB for Gibibyte conversions

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Introduce `operator""_GiB`, sharing the overflow-checked conversion logic with the existing `operator""_MiB`.

Use `1_GiB` in a few existing places where it is a drop-in replacement (e.g. `1024_MiB`, `1<<30`) and extend unit tests to cover boundary behavior.
This commit is contained in:
Lőrinc
2026-01-28 14:44:44 +01:00
parent ad0545ba96
commit b3edd30aa2
6 changed files with 78 additions and 29 deletions
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26
src/test/caches_tests.cpp
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@@ -14,30 +14,30 @@ BOOST_AUTO_TEST_SUITE(caches_tests)
BOOST_AUTO_TEST_CASE(oversized_dbcache_warning)
{
// memory restricted setup - cap is DEFAULT_DB_CACHE (450 MiB)
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/4_MiB, /*total_ram=*/1024_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/512_MiB, /*total_ram=*/1024_MiB)); // At cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/1024_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/4_MiB, /*total_ram=*/1_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/512_MiB, /*total_ram=*/1_GiB)); // At cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/1_GiB)); // Over cap
// 2 GiB RAM - cap is 75%
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/2048_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1600_MiB, /*total_ram=*/2048_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/1500_MiB, /*total_ram=*/2_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/1600_MiB, /*total_ram=*/2_GiB)); // Over cap
if constexpr (SIZE_MAX == UINT64_MAX) {
// 4 GiB RAM - cap is 75%
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/2500_MiB, /*total_ram=*/4096_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/3500_MiB, /*total_ram=*/4096_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/2500_MiB, /*total_ram=*/4_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/3500_MiB, /*total_ram=*/4_GiB)); // Over cap
// 8 GiB RAM - cap is 75%
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/6000_MiB, /*total_ram=*/8192_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/7000_MiB, /*total_ram=*/8192_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/6000_MiB, /*total_ram=*/8_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/7000_MiB, /*total_ram=*/8_GiB)); // Over cap
// 16 GiB RAM - cap is 75%
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/10'000_MiB, /*total_ram=*/16384_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/15'000_MiB, /*total_ram=*/16384_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/10'000_MiB, /*total_ram=*/16_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/15'000_MiB, /*total_ram=*/16_GiB)); // Over cap
// 32 GiB RAM - cap is 75%
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/20'000_MiB, /*total_ram=*/32768_MiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/30'000_MiB, /*total_ram=*/32768_MiB)); // Over cap
BOOST_CHECK(!ShouldWarnOversizedDbCache(/*dbcache=*/20'000_MiB, /*total_ram=*/32_GiB)); // Under cap
BOOST_CHECK( ShouldWarnOversizedDbCache(/*dbcache=*/30'000_MiB, /*total_ram=*/32_GiB)); // Over cap
}
}