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xo-alloc2: DX1CollectorIterator infra [WIP]

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This commit is contained in:
Roland Conybeare 2025-12-17 20:16:46 -05:00
commit bf27314688
30 changed files with 1041 additions and 176 deletions
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56
src/alloc2/DX1Collector.cpp
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@ -6,6 +6,7 @@
#include "Allocator.hpp"
#include "arena/IAllocator_DArena.hpp"
#include "gc/DX1Collector.hpp"
#include "gc/DX1CollectorIterator.hpp"
#include "gc/generation.hpp"
#include "gc/object_age.hpp"
#include <xo/facet/obj.hpp>
@ -24,23 +25,6 @@ namespace xo {
}
#endif
#ifdef OBSOLETE
constexpr std::uint64_t
CollectorConfig::gen_shift() const {
return arena_config_.header_size_bits_;
}
constexpr std::uint64_t
CollectorConfig::gen_mask_unshifted() const {
return (1ul << gen_bits_) - 1;
}
constexpr std::uint64_t
CollectorConfig::gen_mask_shifted() const {
return gen_mask_unshifted() << arena_config_.header_size_bits_;
}
#endif
#ifdef NOT_USING
constexpr std::uint64_t
CollectorConfig::tseq_mult() const {
@ -48,23 +32,6 @@ namespace xo {
}
#endif
#ifdef OBSOLETE
constexpr std::uint64_t
CollectorConfig::tseq_shift() const {
return gen_bits_ + arena_config_.header_size_bits_;
}
constexpr std::uint64_t
CollectorConfig::tseq_mask_unshifted() const {
return (1ul << tseq_bits_) - 1;
}
constexpr std::uint64_t
CollectorConfig::tseq_mask_shifted() const {
return tseq_mask_unshifted() << (gen_bits_ + arena_config_.header_size_bits_);
}
#endif
// ----- GCRunState -----
GCRunState::GCRunState(generation gc_upto)
@ -257,6 +224,27 @@ namespace xo {
return this->new_space()->alloc_info(mem);
}
DX1CollectorIterator
DX1Collector::begin() const noexcept
{
return DX1CollectorIterator(this,
generation{0},
generation{config_.n_generation_},
DArenaIterator(),
DArenaIterator());
}
DX1CollectorIterator
DX1Collector::end() const noexcept {
generation gen_hi = generation{config_.n_generation_};
return DX1CollectorIterator(this,
gen_hi,
gen_hi,
DArenaIterator(),
DArenaIterator());
}
void
DX1Collector::reverse_roles(generation g) noexcept {
assert(g < config_.n_generation_);