1570af302Sopenharmony_ci/* 2570af302Sopenharmony_ci * Copyright (c) 2022 Huawei Device Co., Ltd. 3570af302Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 4570af302Sopenharmony_ci * you may not use this file except in compliance with the License. 5570af302Sopenharmony_ci * You may obtain a copy of the License at 6570af302Sopenharmony_ci * 7570af302Sopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 8570af302Sopenharmony_ci * 9570af302Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software 10570af302Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 11570af302Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12570af302Sopenharmony_ci * See the License for the specific language governing permissions and 13570af302Sopenharmony_ci * limitations under the License. 14570af302Sopenharmony_ci */ 15570af302Sopenharmony_ci 16570af302Sopenharmony_ci#include <errno.h> 17570af302Sopenharmony_ci#include <stdio.h> 18570af302Sopenharmony_ci#include <stdlib.h> 19570af302Sopenharmony_ci#include <sys/swap.h> 20570af302Sopenharmony_ci 21570af302Sopenharmony_ci#include "filepath_util.h" 22570af302Sopenharmony_ci 23570af302Sopenharmony_ci/** 24570af302Sopenharmony_ci * @tc.name : swapon_0100 25570af302Sopenharmony_ci * @tc.desc : Start swapping to file/device 26570af302Sopenharmony_ci * @tc.level : Level 0 27570af302Sopenharmony_ci */ 28570af302Sopenharmony_civoid swapon_0100(void) 29570af302Sopenharmony_ci{ 30570af302Sopenharmony_ci char dir_path[PATH_MAX] = {0}; 31570af302Sopenharmony_ci FILE_ABSOLUTE_DIR(dir_path); 32570af302Sopenharmony_ci errno = 0; 33570af302Sopenharmony_ci char cmd[PATH_MAX] = {0}; 34570af302Sopenharmony_ci snprintf(cmd, sizeof(cmd), "cd %s; dd if=/dev/zero of=swapfile count=1 bs=1k; mkswap swapfile", dir_path); 35570af302Sopenharmony_ci system(cmd); 36570af302Sopenharmony_ci 37570af302Sopenharmony_ci char path[PATH_MAX] = {0}; 38570af302Sopenharmony_ci FILE_ABSOLUTE_PATH(STR_FILE_SWAP, path); 39570af302Sopenharmony_ci int result = swapon(path, SWAP_FLAG_PREFER); 40570af302Sopenharmony_ci if (result == -1) { 41570af302Sopenharmony_ci t_error("%s swapon failed\n", __func__); 42570af302Sopenharmony_ci remove(path); 43570af302Sopenharmony_ci } 44570af302Sopenharmony_ci 45570af302Sopenharmony_ci if (errno == ENOSYS) { 46570af302Sopenharmony_ci t_error("%s errno is %d\n", __func__, errno); 47570af302Sopenharmony_ci return; 48570af302Sopenharmony_ci } 49570af302Sopenharmony_ci} 50570af302Sopenharmony_ci 51570af302Sopenharmony_ciint main(int argc, char *argv[]) 52570af302Sopenharmony_ci{ 53570af302Sopenharmony_ci // swapon_0100(); 54570af302Sopenharmony_ci return t_status; 55570af302Sopenharmony_ci} 56