1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "sys_utils.h"
17
18#include <cerrno>
19#include <sched.h>
20#include <unistd.h>
21
22#include "utils_log.h"
23
24namespace OHOS {
25namespace FileManagement {
26namespace CloudSync {
27
28void SlowDown()
29{
30    cpu_set_t cpuSet;
31    CPU_ZERO(&cpuSet);
32    for (int cpu = CPU_IDX_0; cpu <= CPU_IDX_6; cpu++) {
33        CPU_SET(cpu, &cpuSet);
34    }
35    if (sched_setaffinity(0, sizeof(cpuSet), &cpuSet) < 0) {
36        LOGE("set thread affinity failed, errno %{public}d", errno);
37    }
38}
39
40void ResetCpu()
41{
42    cpu_set_t cpuSet;
43    CPU_ZERO(&cpuSet);
44
45    if (sched_setaffinity(0, sizeof(cpuSet), &cpuSet) < 0) {
46        LOGE("set thread affinity failed, errno %{public}d", errno);
47        return;
48    }
49}
50}
51}
52}