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
24 namespace OHOS {
25 namespace FileManagement {
26 namespace CloudSync {
27
SlowDown()28 void 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
ResetCpu()40 void 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 }