81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
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// smallobject_cold_iface_v1.h - Cold interface wrapper for SmallObject HotBox v3
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// 役割:
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// - SmallObject Hot Box (v3) と既存 v1 Tiny Cold 層の境界を 1 箇所にまとめる。
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// - Phase A: C7 の refill/retire だけを v1 TinyHeap へラップする。
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#pragma once
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#include <stdint.h>
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#include <stdlib.h>
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#include "tiny_heap_box.h"
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#include "smallobject_hotbox_v3_box.h"
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#include "../hakmem_tiny.h" // TINY_SLAB_SIZE for slab base mask
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struct so_page_v3;
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typedef struct SmallObjectColdIface {
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struct so_page_v3* (*refill_page)(void* cold_ctx, uint32_t class_idx);
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void (*retire_page)(void* cold_ctx, uint32_t class_idx, struct so_page_v3* page);
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} SmallObjectColdIface;
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static inline struct so_page_v3* smallobject_cold_refill_page_v1(void* cold_ctx, uint32_t class_idx) {
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if (class_idx != 7 && class_idx != 6) {
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return NULL; // Phase A-2: C7/C6 のみ対応
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}
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tiny_heap_ctx_t* ctx = cold_ctx ? (tiny_heap_ctx_t*)cold_ctx : tiny_heap_ctx_for_thread();
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if (!ctx) return NULL;
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tiny_heap_page_t* lease = tiny_heap_prepare_page(ctx, (int)class_idx);
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if (!lease) return NULL;
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so_page_v3* page = (so_page_v3*)calloc(1, sizeof(so_page_v3));
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if (!page) return NULL;
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page->lease_page = lease;
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page->meta = lease->meta;
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page->ss = lease->ss;
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page->slab_idx = lease->slab_idx;
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page->base = lease->base;
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page->capacity = lease->capacity;
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page->block_size = (uint32_t)tiny_stride_for_class((int)class_idx);
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page->class_idx = class_idx;
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page->slab_ref = lease;
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return page;
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}
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static inline void smallobject_cold_retire_page_v1(void* cold_ctx, uint32_t class_idx, struct so_page_v3* page) {
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if (!page || (class_idx != 7 && class_idx != 6)) {
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if (page) {
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free(page);
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}
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return;
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}
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tiny_heap_ctx_t* ctx = cold_ctx ? (tiny_heap_ctx_t*)cold_ctx : tiny_heap_ctx_for_thread();
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if (!ctx) {
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free(page);
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return;
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}
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tiny_heap_page_t* lease = page->lease_page;
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if (!lease) {
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free(page);
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return;
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}
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lease->base = (uint8_t*)page->base;
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lease->capacity = (uint16_t)page->capacity;
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lease->used = (uint16_t)page->used;
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lease->meta = page->meta;
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lease->ss = page->ss;
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lease->slab_idx = page->slab_idx;
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lease->free_list = page->freelist;
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tiny_heap_page_becomes_empty(ctx, (int)class_idx, lease);
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free(page);
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}
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static inline SmallObjectColdIface smallobject_cold_iface_v1(void) {
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SmallObjectColdIface iface = {
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.refill_page = smallobject_cold_refill_page_v1,
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.retire_page = smallobject_cold_retire_page_v1,
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};
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return iface;
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}
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