2a13478dc7
- Update environment profile presets and visibility analysis - Enhance small object and tiny segment v4 box implementations - Refine C7 ultra and C6 heavy allocation strategies - Add comprehensive performance metrics and design documentation 🤖 Generated with Claude Code Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
// smallobject_hotbox_v4_box.h - SmallObject HotHeap v4 (型スケルトン)
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//
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// 役割:
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// - v4 のページ / クラス / TLS コンテキスト型と API 宣言だけを定義する箱。
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// - 挙動はまだ v3/v1 のまま。alloc/free 本体は後続フェーズで実装する。
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#pragma once
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#include <stddef.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "tiny_geometry_box.h"
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#ifndef SMALLOBJECT_NUM_CLASSES
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#define SMALLOBJECT_NUM_CLASSES TINY_NUM_CLASSES
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#endif
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struct small_segment_v4;
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// Page metadata for v4 HotBox
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typedef struct small_page_v4 {
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void* freelist;
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uint16_t used;
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uint16_t capacity;
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uint8_t class_idx;
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uint8_t flags;
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uint32_t block_size;
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uint8_t* base;
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void* slab_ref; // Superslab / lease token (box境界で扱う)
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struct small_segment_v4* segment; // PF3: segment owner（NULLなら Tiny v1 経路）
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struct small_page_v4* next;
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} small_page_v4;
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// Per-class heap state (current / partial / full lists)
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typedef struct small_class_heap_v4 {
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small_page_v4* current;
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small_page_v4* partial_head;
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small_page_v4* full_head;
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uint32_t partial_count;
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} small_class_heap_v4;
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// TLS heap context (per-thread)
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typedef struct small_heap_ctx_v4 {
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small_class_heap_v4 cls[SMALLOBJECT_NUM_CLASSES];
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} small_heap_ctx_v4;
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// TLS accessor (実装は後続フェーズで追加)
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small_heap_ctx_v4* small_heap_ctx_v4_get(void);
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// Hot path API (C7-only stub; later phases will expand)
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void* small_heap_alloc_fast_v4(small_heap_ctx_v4* ctx, int class_idx);
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void small_heap_free_fast_v4(small_heap_ctx_v4* ctx, int class_idx, void* ptr);
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int smallobject_hotbox_v4_can_own(int class_idx, void* ptr);
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