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xo-alloc2: ++ plumbing for AAllocator / DArena

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This commit is contained in:
Roland Conybeare 2025-12-12 01:02:45 -05:00
commit e0dd9d2a1c
10 changed files with 223 additions and 91 deletions
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39
utest/arena.test.cpp
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@ -4,7 +4,9 @@
**/
#include "xo/alloc2/AAllocator.hpp"
#include "xo/alloc2/DArena.hpp"
#include "xo/alloc2/IAllocator_Any.hpp"
#include "xo/alloc2/IAllocator_Xfer.hpp"
//#include "xo/alloc2/DArena.hpp"
#include "xo/alloc2/IAllocator_DArena.hpp"
#include "xo/alloc2/RAllocator.hpp"
#include "xo/alloc2/padding.hpp"
@ -13,6 +15,7 @@
namespace xo {
using xo::mm::AAllocator;
using xo::mm::IAllocator_DArena;
using xo::mm::IAllocator_Xfer;
using xo::mm::DArena;
using xo::mm::ArenaConfig;
@ -23,9 +26,9 @@ namespace xo {
namespace ut {
TEST_CASE("IAllocator_Xfer_DArena", "[alloc2]")
{
IAllocator_Xfer<DArena> xfer;
IAllocator_Xfer<DArena, IAllocator_DArena> xfer;
REQUIRE(IAllocator_Xfer<DArena>::_valid);
REQUIRE(IAllocator_Xfer<DArena, IAllocator_DArena>::_valid);
}
TEST_CASE("DArena", "[alloc2][DArena]")
@ -73,18 +76,36 @@ namespace xo {
TEST_CASE("allocator-any-1", "[alloc2][AAllocator]")
{
#ifdef NOPE
ArenaConfig cfg { .name_ = "testarena",
.size_ = 1 };
DArena arena = DArena::map(cfg);
#endif
/* empty allocator */
obj<AAllocator> alloc1;
REQUIRE(!alloc1);
REQUIRE(alloc1.iface() != nullptr);
REQUIRE(alloc1.data() == nullptr);
ArenaConfig cfg { .name_ = "testarena",
.size_ = 1 };
DArena arena = DArena::map(cfg);
obj<AAllocator, DArena> a1o{&arena};
REQUIRE(a1o);
REQUIRE(a1o.iface() != nullptr);
REQUIRE(a1o.data() != nullptr);
REQUIRE(a1o._typeseq()
== xo::facet::FacetImplType<AAllocator, DArena>::s_typeseq);
REQUIRE(a1o.name() == cfg.name_);
REQUIRE(a1o.reserved() >= cfg.size_);
REQUIRE(a1o.reserved() < cfg.size_ + cfg.hugepage_z_);
REQUIRE(a1o.reserved() % cfg.hugepage_z_ == 0);
REQUIRE(a1o.size() == 0);
REQUIRE(a1o.committed() == 0);
#ifdef NOPE
byte * m = a1o.alloc(1);
REQUIRE(m);
#endif
}
} /*namespace ut*/
} /*namespace xo*/