219 lines
8.1 KiB
C++
219 lines
8.1 KiB
C++
/** @file DArena.test.cpp
|
|
*
|
|
* @author Roland Conybeare, Jan 2026
|
|
**/
|
|
|
|
#include "DArena.hpp"
|
|
#include "print.hpp"
|
|
#include <xo/indentlog/print/tag.hpp>
|
|
#include <catch2/catch.hpp>
|
|
|
|
namespace xo {
|
|
using xo::mm::DArena;
|
|
using xo::mm::AllocHeader;
|
|
using xo::mm::AllocHeaderConfig;
|
|
using xo::mm::ArenaConfig;
|
|
using xo::mm::padding;
|
|
using xo::mm::error;
|
|
using xo::reflect::typeseq;
|
|
using xo::xtag;
|
|
using std::byte;
|
|
|
|
namespace ut {
|
|
TEST_CASE("DArena-tiny", "[arena][DArena]")
|
|
{
|
|
ArenaConfig cfg { .name_ = "testarena",
|
|
.size_ = 1 };
|
|
DArena arena = DArena::map(cfg);
|
|
|
|
REQUIRE(arena.config_.name_ == cfg.name_);
|
|
REQUIRE(arena.lo_ != nullptr);
|
|
REQUIRE(arena.free_ == arena.lo_);
|
|
REQUIRE(arena.limit_ == arena.lo_);
|
|
REQUIRE(arena.hi_ != nullptr);
|
|
REQUIRE(arena.hi_ > arena.lo_);
|
|
REQUIRE(((size_t)arena.hi_ - (size_t)arena.lo_) % arena.page_z_ == 0);
|
|
REQUIRE(arena.lo_ + cfg.size_ <= arena.hi_);
|
|
|
|
/* verify arena.lo_ is aligned on a page boundary */
|
|
REQUIRE(((size_t)(arena.lo_) & (arena.page_z_ - 1)) == 0);
|
|
|
|
/* verify arena.hi_ is aligned on a hugepage boundary */
|
|
REQUIRE(((size_t)(arena.hi_) & (arena.page_z_ - 1)) == 0);
|
|
|
|
byte * lo = arena.lo_;
|
|
byte * free = arena.free_;
|
|
byte * limit = arena.limit_;
|
|
byte * hi = arena.hi_;
|
|
size_t committed_z = arena.committed_z_;
|
|
|
|
DArena arena2 = std::move(arena);
|
|
|
|
REQUIRE(arena.lo_ == nullptr);
|
|
REQUIRE(arena.free_ == nullptr);
|
|
REQUIRE(arena.limit_ == nullptr);
|
|
REQUIRE(arena.hi_ == nullptr);
|
|
REQUIRE(arena.committed_z_ == 0);
|
|
|
|
REQUIRE(arena.lo_ == nullptr);
|
|
REQUIRE(arena2.lo_ == lo);
|
|
REQUIRE(arena2.free_ == free);
|
|
REQUIRE(arena2.limit_ == limit);
|
|
REQUIRE(arena2.hi_ == hi);
|
|
REQUIRE(arena2.committed_z_ == committed_z);
|
|
}
|
|
|
|
TEST_CASE("DArena-medium", "[arena][DArena]")
|
|
{
|
|
ArenaConfig cfg { .name_ = "testarena",
|
|
.size_ = 10*1024*1024 };
|
|
DArena arena = DArena::map(cfg);
|
|
|
|
REQUIRE(arena.config_.name_ == cfg.name_);
|
|
REQUIRE(arena.lo_ != nullptr);
|
|
REQUIRE(arena.free_ == arena.lo_);
|
|
REQUIRE(arena.limit_ == arena.lo_);
|
|
REQUIRE(arena.hi_ != nullptr);
|
|
REQUIRE(arena.hi_ > arena.lo_);
|
|
REQUIRE(((size_t)arena.hi_ - (size_t)arena.lo_) % cfg.hugepage_z_ == 0);
|
|
REQUIRE(arena.lo_ + cfg.size_ <= arena.hi_);
|
|
|
|
/* verify arena.lo_ is aligned on a page boundary */
|
|
REQUIRE(((size_t)(arena.lo_) & (cfg.hugepage_z_ - 1)) == 0);
|
|
|
|
/* verify arena.hi_ is aligned on a hugepage boundary */
|
|
REQUIRE(((size_t)(arena.hi_) & (cfg.hugepage_z_ - 1)) == 0);
|
|
|
|
byte * lo = arena.lo_;
|
|
byte * free = arena.free_;
|
|
byte * limit = arena.limit_;
|
|
byte * hi = arena.hi_;
|
|
size_t committed_z = arena.committed_z_;
|
|
|
|
DArena arena2 = std::move(arena);
|
|
|
|
REQUIRE(arena.lo_ == nullptr);
|
|
REQUIRE(arena.free_ == nullptr);
|
|
REQUIRE(arena.limit_ == nullptr);
|
|
REQUIRE(arena.hi_ == nullptr);
|
|
REQUIRE(arena.committed_z_ == 0);
|
|
|
|
REQUIRE(arena.lo_ == nullptr);
|
|
REQUIRE(arena2.lo_ == lo);
|
|
REQUIRE(arena2.free_ == free);
|
|
REQUIRE(arena2.limit_ == limit);
|
|
REQUIRE(arena2.hi_ == hi);
|
|
REQUIRE(arena2.committed_z_ == committed_z);
|
|
}
|
|
|
|
TEST_CASE("DArena-expand-1", "[arena][DArena]")
|
|
{
|
|
/* typed allocator a1o */
|
|
ArenaConfig cfg { .name_ = "testarena",
|
|
.size_ = 1,
|
|
.debug_flag_ = false };
|
|
DArena arena = DArena::map(cfg);
|
|
|
|
REQUIRE(arena.available() == 0);
|
|
REQUIRE(arena.allocated() == 0);
|
|
|
|
size_t z2 = 512;
|
|
bool ok = arena.expand(z2);
|
|
|
|
INFO(xtag("last_error", arena.last_error()));
|
|
|
|
REQUIRE(ok);
|
|
|
|
REQUIRE(arena.reserved() % arena.page_z() == 0);
|
|
REQUIRE(arena.committed() >= z2);
|
|
REQUIRE(arena.committed() % arena.page_z() == 0);
|
|
REQUIRE(arena.available() >= z2);
|
|
REQUIRE(arena.available() == arena.committed());
|
|
REQUIRE(arena.allocated() == 0);
|
|
|
|
}
|
|
|
|
TEST_CASE("arena-alloc-1", "[arena][DArena]")
|
|
{
|
|
/* typed allocator a1o */
|
|
ArenaConfig cfg { .name_ = "testarena",
|
|
.size_ = 64*1024,
|
|
.debug_flag_ = false };
|
|
DArena arena = DArena::map(cfg);
|
|
|
|
REQUIRE(arena.reserved() >= cfg.size_);
|
|
REQUIRE(arena.committed() == 0);
|
|
REQUIRE(arena.available() == 0);
|
|
REQUIRE(arena.allocated() == 0);
|
|
|
|
size_t z0 = 1;
|
|
byte * m0 = arena.alloc(typeseq::anon(), 1);
|
|
|
|
REQUIRE(m0);
|
|
REQUIRE(arena.last_error().error_ == error::ok);
|
|
REQUIRE(arena.last_error().error_seq_ == 0);
|
|
REQUIRE(arena.allocated() >= z0);
|
|
REQUIRE(arena.allocated() < z0 + padding::c_alloc_alignment );
|
|
REQUIRE(arena.allocated() <= arena.committed());
|
|
REQUIRE(arena.allocated() + arena.available() == arena.committed());
|
|
REQUIRE(arena.committed() <= arena.reserved());
|
|
|
|
size_t z1 = 16;
|
|
byte * m1 = arena.alloc(typeseq::anon(), z1);
|
|
|
|
REQUIRE(m1);
|
|
REQUIRE(arena.last_error().error_ == error::ok);
|
|
REQUIRE(arena.last_error().error_seq_ == 0);
|
|
REQUIRE(arena.allocated() >= z0 + z1);
|
|
REQUIRE(arena.allocated() < z0 + z1 + 2 * padding::c_alloc_alignment );
|
|
REQUIRE(arena.allocated() <= arena.committed());
|
|
REQUIRE(arena.allocated() + arena.available() == arena.committed());
|
|
REQUIRE(arena.committed() <= arena.reserved());
|
|
}
|
|
|
|
TEST_CASE("arena-alloc-2", "[arena][DArena]")
|
|
{
|
|
using header_type = AllocHeader;
|
|
|
|
/* typed allocator a1o, with object header */
|
|
ArenaConfig cfg { .name_ = "testarena",
|
|
.size_ = 64*1024,
|
|
.store_header_flag_ = true,
|
|
/* up to 4GB */
|
|
.header_ = AllocHeaderConfig(0 /*guard_z*/,
|
|
0xfd /*guard_byte*/,
|
|
0 /*tseq-bits*/,
|
|
0 /*age-bits*/,
|
|
32 /*size-bits*/),
|
|
.debug_flag_ = false,
|
|
};
|
|
DArena arena = DArena::map(cfg);
|
|
|
|
REQUIRE(arena.reserved() >= cfg.size_);
|
|
REQUIRE(arena.committed() == 0);
|
|
REQUIRE(arena.available() == 0);
|
|
REQUIRE(arena.allocated() == 0);
|
|
|
|
size_t z0 = 1;
|
|
byte * m0 = arena.alloc(typeseq::anon(), 1);
|
|
|
|
REQUIRE(m0);
|
|
|
|
header_type* header = (header_type*)(m0 - sizeof(header_type));
|
|
|
|
REQUIRE(arena.contains(header));
|
|
REQUIRE(cfg.header_.size(*header) == padding::with_padding(z0));
|
|
//REQUIRE(((*header) & cfg.header_size_mask_) == padding::with_padding(z0));
|
|
REQUIRE(arena.last_error().error_ == error::ok);
|
|
REQUIRE(arena.last_error().error_seq_ == 0);
|
|
REQUIRE(arena.allocated() >= z0);
|
|
REQUIRE(arena.allocated() < sizeof(DArena::header_type) + z0 + padding::c_alloc_alignment );
|
|
REQUIRE(arena.allocated() <= arena.committed());
|
|
REQUIRE(arena.allocated() + arena.available() == arena.committed());
|
|
REQUIRE(arena.committed() <= arena.reserved());
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/* end DArena.test.cpp */
|