113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/** @file arena.test.cpp
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*
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* @author Roland Conybeare, Dec 2025
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**/
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#include "xo/alloc2/AAllocator.hpp"
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#include "xo/alloc2/IAllocator_Any.hpp"
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#include "xo/alloc2/IAllocator_Xfer.hpp"
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//#include "xo/alloc2/DArena.hpp"
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#include "xo/alloc2/IAllocator_DArena.hpp"
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#include "xo/alloc2/RAllocator.hpp"
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#include "xo/alloc2/padding.hpp"
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#include "xo/facet/obj.hpp"
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#include <catch2/catch.hpp>
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namespace xo {
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using xo::mm::AAllocator;
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using xo::mm::IAllocator_DArena;
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using xo::mm::IAllocator_Xfer;
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using xo::mm::DArena;
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using xo::mm::ArenaConfig;
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using xo::facet::obj;
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using std::byte;
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using std::size_t;
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namespace ut {
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TEST_CASE("IAllocator_Xfer_DArena", "[alloc2]")
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{
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IAllocator_Xfer<DArena, IAllocator_DArena> xfer;
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REQUIRE(IAllocator_Xfer<DArena, IAllocator_DArena>::_valid);
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}
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TEST_CASE("DArena", "[alloc2][DArena]")
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{
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ArenaConfig cfg { .name_ = "testarena",
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.size_ = 1 };
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DArena arena = DArena::map(cfg);
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REQUIRE(arena.config_.name_ == cfg.name_);
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REQUIRE(arena.lo_ != nullptr);
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REQUIRE(arena.free_ == arena.lo_);
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REQUIRE(arena.limit_ == arena.lo_);
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REQUIRE(arena.hi_ != nullptr);
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REQUIRE(arena.hi_ > arena.lo_);
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REQUIRE(((size_t)arena.hi_ - (size_t)arena.lo_) % cfg.hugepage_z_ == 0);
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REQUIRE(arena.lo_ + cfg.size_ <= arena.hi_);
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/* verify arena.lo_ is aligned on a hugepage boundary */
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REQUIRE(((size_t)(arena.lo_) & (cfg.hugepage_z_ - 1)) == 0);
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/* verify arena.hi_ is aligned on a hugepage boundary */
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REQUIRE(((size_t)(arena.hi_) & (cfg.hugepage_z_ - 1)) == 0);
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byte * lo = arena.lo_;
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byte * free = arena.free_;
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byte * limit = arena.limit_;
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byte * hi = arena.hi_;
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size_t committed_z = arena.committed_z_;
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DArena arena2 = std::move(arena);
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REQUIRE(arena.lo_ == nullptr);
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REQUIRE(arena.free_ == nullptr);
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REQUIRE(arena.limit_ == nullptr);
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REQUIRE(arena.hi_ == nullptr);
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REQUIRE(arena.committed_z_ == 0);
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REQUIRE(arena.lo_ == nullptr);
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REQUIRE(arena2.lo_ == lo);
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REQUIRE(arena2.free_ == free);
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REQUIRE(arena2.limit_ == limit);
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REQUIRE(arena2.hi_ == hi);
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REQUIRE(arena2.committed_z_ == committed_z);
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}
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TEST_CASE("allocator-any-1", "[alloc2][AAllocator]")
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{
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/* empty allocator */
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obj<AAllocator> alloc1;
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REQUIRE(!alloc1);
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REQUIRE(alloc1.iface() != nullptr);
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REQUIRE(alloc1.data() == nullptr);
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ArenaConfig cfg { .name_ = "testarena",
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.size_ = 1 };
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DArena arena = DArena::map(cfg);
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obj<AAllocator, DArena> a1o{&arena};
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REQUIRE(a1o);
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REQUIRE(a1o.iface() != nullptr);
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REQUIRE(a1o.data() != nullptr);
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REQUIRE(a1o._typeseq()
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== xo::facet::FacetImplType<AAllocator, DArena>::s_typeseq);
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REQUIRE(a1o.name() == cfg.name_);
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REQUIRE(a1o.reserved() >= cfg.size_);
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REQUIRE(a1o.reserved() < cfg.size_ + cfg.hugepage_z_);
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REQUIRE(a1o.reserved() % cfg.hugepage_z_ == 0);
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REQUIRE(a1o.size() == 0);
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REQUIRE(a1o.committed() == 0);
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#ifdef NOPE
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byte * m = a1o.alloc(1);
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REQUIRE(m);
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#endif
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}
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} /*namespace ut*/
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} /*namespace xo*/
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/* end arena.test.cpp */
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