tiny.simd.dataCaches

1pub fn dataCaches() ?*const [4]topology.Cache {2    const state = cache_state.load(.acquire);3    if (state != 0) return if (state == 1) &cache_storage else null;4    while (!cache_guard.tryLock()) std.atomic.spinLoopHint();5    defer cache_guard.unlock();6    const locked_state = cache_state.load(.monotonic);7    if (locked_state == 0) {8        const detected = if (comptime builtin.target.os.tag == .linux)9            linux.dataCaches()10        else if (comptime builtin.target.os.tag.isDarwin())11            apple.dataCaches()12        else if (comptime builtin.target.os.tag == .windows)13            windows.dataCaches()14        else15            null;16        if (detected) |caches| {17            cache_storage = caches;18            cache_state.store(1, .release);19        } else {20            cache_state.store(2, .release);21        }22    }23    return if (cache_state.load(.acquire) == 1) &cache_storage else null;24}

1pub const dataCaches = topology.dataCaches;