// slab_recycling_box.c - Phase 9-2: Slab Recycling Implementation
// Purpose: Statistics tracking for EMPTY slab recycling

#include "slab_recycling_box.h"

// ============================================================================
// Statistics (Debug builds only)
// ============================================================================

#if !HAKMEM_BUILD_RELEASE
// Per-thread recycling statistics
__thread SlabRecyclingStats g_slab_recycle_stats = {0};

void slab_recycle_print_stats(void) {
    fprintf(stderr, "\n[SLAB_RECYCLE_STATS] Slab Recycling Statistics:\n");
    fprintf(stderr, "  Total attempts:        %lu\n", g_slab_recycle_stats.recycle_attempts);
    fprintf(stderr, "  Successful recycles:   %lu\n", g_slab_recycle_stats.recycle_success);
    fprintf(stderr, "  Skipped (not empty):   %lu\n", g_slab_recycle_stats.recycle_skip_not_empty);
    fprintf(stderr, "  Skipped (no capacity): %lu\n", g_slab_recycle_stats.recycle_skip_no_cap);
    fprintf(stderr, "  Skipped (null ptr):    %lu\n", g_slab_recycle_stats.recycle_skip_null);

    if (g_slab_recycle_stats.recycle_attempts > 0) {
        double success_rate = 100.0 * g_slab_recycle_stats.recycle_success /
                              g_slab_recycle_stats.recycle_attempts;
        fprintf(stderr, "  Success rate:          %.1f%%\n", success_rate);
    }

    fprintf(stderr, "\n");
}
#endif