47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
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#ifndef HAKMEM_FREE_DISPATCH_STATS_BOX_H
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#define HAKMEM_FREE_DISPATCH_STATS_BOX_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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typedef struct FreeDispatchStats {
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uint64_t total_calls;
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// Domain classification
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uint64_t domain_tiny;
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uint64_t domain_mid;
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uint64_t domain_large;
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// Route classification (tiny domain)
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uint64_t route_ultra; // C4-C7 ULTRA 直行
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uint64_t route_tiny_legacy; // Tiny legacy path
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uint64_t route_pool_v1; // pool v1 経由
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uint64_t route_core_v6; // core v6 (C6-only)
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// Performance counters
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uint64_t env_checks; // ENV 読み回数（概算）
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uint64_t route_for_class_calls; // tiny_route_for_class() 呼び出し回数
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} FreeDispatchStats;
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// ENV gate
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static inline bool free_dispatch_stats_enabled(void) {
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static int g_enabled = -1;
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if (__builtin_expect(g_enabled == -1, 0)) {
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const char* e = getenv("HAKMEM_FREE_DISPATCH_STATS");
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g_enabled = (e && *e && *e != '0') ? 1 : 0;
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}
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return g_enabled;
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}
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// Global stats instance
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extern FreeDispatchStats g_free_dispatch_stats;
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// Increment macros (with unlikely guard)
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#define FREE_DISPATCH_STAT_INC(field) \
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do { if (__builtin_expect(free_dispatch_stats_enabled(), 0)) { \
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g_free_dispatch_stats.field++; \
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} } while(0)
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#endif // HAKMEM_FREE_DISPATCH_STATS_BOX_H
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