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Cleanup: Unify type naming and Cold Iface architecture

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Refactoring:
- Type naming: Rename small_page_v4 → SmallPageMeta, small_class_heap_v4 → SmallClassHeap, small_heap_ctx_v4 → SmallHeapCtx
- Keep backward compatibility aliases for existing code
- SmallSegment struct unified, clean forward declarations
- Cold Iface: Remove vtable (SmallColdIfaceV4 struct) in favor of direct function calls
- Simplify refill_page/retire_page to direct calls, not callbacks
- smallobject_hotbox_v4.c: Update to call small_cold_v4_* functions directly

Documentation:
- Add docs/analysis/ENV_CLEANUP_CANDIDATES.md
- Categorize ENVs: KEEP (production), RESEARCH (opt-in), DELETE (obsolete)
- v2 code: Keep as research infrastructure (complete, safe, gated)
- v4 code: Research scaffold for future mid-level allocator

Build:
- ビルド成功（警告のみ）
- Backward compatible, all existing code still works

🤖 Generated with Claude Code

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
This commit is contained in:
Moe Charm (CI)
2025-12-10 23:30:32 +09:00
parent 52c65da783
commit e3e4cab833
5 changed files with 197 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
core/smallobject_hotbox_v4.c
View File

@ -248,40 +248,24 @@ static void cold_retire_page_v4(small_heap_ctx_v4* hot_ctx, uint32_t class_idx,
free(page);
}
static const SmallColdIfaceV4 g_cold_iface_v4 = {
.refill_page = cold_refill_page_v4,
.retire_page = cold_retire_page_v4,
.remote_push = NULL,
.remote_drain = NULL,
};
const SmallColdIfaceV4* small_cold_iface_v4_get(void) {
return &g_cold_iface_v4;
}
// Direct function stubs (phase v4-mid-0: delegates to iface)
// Direct function implementations (phase v4-mid-0: cold_refill/retire を直接呼び出す)
small_page_v4* small_cold_v4_refill_page(small_heap_ctx_v4* ctx, uint32_t class_idx) {
const SmallColdIfaceV4* iface = small_cold_iface_v4_get();
if (!iface || !iface->refill_page) return NULL;
return iface->refill_page(ctx, class_idx);
return cold_refill_page_v4(ctx, class_idx);
}
void small_cold_v4_retire_page(small_heap_ctx_v4* ctx, small_page_v4* page) {
const SmallColdIfaceV4* iface = small_cold_iface_v4_get();
if (!iface || !iface->retire_page || !page) return;
iface->retire_page(ctx, (uint32_t)page->class_idx, page);
if (!page) return;
cold_retire_page_v4(ctx, (uint32_t)page->class_idx, page);
}
bool small_cold_v4_remote_push(small_page_v4* page, void* ptr, uint32_t tid) {
const SmallColdIfaceV4* iface = small_cold_iface_v4_get();
if (!iface || !iface->remote_push) return false;
return iface->remote_push(page, ptr, tid);
(void)page; (void)ptr; (void)tid;
return false; // stub: not yet implemented
}
void small_cold_v4_remote_drain(small_heap_ctx_v4* ctx) {
const SmallColdIfaceV4* iface = small_cold_iface_v4_get();
if (!iface || !iface->remote_drain) return;
iface->remote_drain(ctx);
(void)ctx;
// stub: not yet implemented
}
// Stub accessor for smallsegment_v4_page_meta_of
@ -321,9 +305,8 @@ static small_page_v4* small_alloc_slow_v4(small_heap_ctx_v4* ctx, int class_idx)
return from_partial;
}
const SmallColdIfaceV4* cold = small_cold_iface_v4_get();
if (!cold || !cold->refill_page) return NULL;
small_page_v4* page = cold->refill_page(ctx, (uint32_t)class_idx);
// Call direct Cold function (not vtable)
small_page_v4* page = small_cold_v4_refill_page(ctx, (uint32_t)class_idx);
if (!page) return NULL;
h->current = page;
return page;
@ -400,7 +383,6 @@ void small_heap_free_fast_v4(small_heap_ctx_v4* ctx, int class_idx, void* ptr) {
}
if (page->used == 0) {
const SmallColdIfaceV4* cold = small_cold_iface_v4_get();
if (loc != V4_LOC_CURRENT) {
v4_unlink_from_list(h, loc, prev, page);
}
@ -417,11 +399,8 @@ void small_heap_free_fast_v4(small_heap_ctx_v4* ctx, int class_idx, void* ptr) {
v4_page_push_partial(h, page);
return;
}
if (cold && cold->retire_page) {
cold->retire_page(ctx, (uint32_t)class_idx, page);
} else {
free(page);
}
// Call direct Cold function (not vtable)
small_cold_v4_retire_page(ctx, page);
return;
}