Files
startup_init_lite/services/init/standard/init_service.c
T
2021-10-20 16:28:12 +08:00

79 lines
2.7 KiB
C
Executable File

/*
* Copyright (c) 2020-2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "init_service.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/resource.h>
#include "init.h"
#include "init_log.h"
#include "init_param.h"
#include "securec.h"
#define MIN_IMPORTANT_LEVEL (-20)
#define MAX_IMPORTANT_LEVEL 19
void NotifyServiceChange(const char *serviceName, const char *change)
{
char paramName[PARAM_NAME_LEN_MAX] = { 0 };
if (snprintf_s(paramName, PARAM_NAME_LEN_MAX, PARAM_NAME_LEN_MAX - 1, "init.svc.%s", serviceName) < 0) {
INIT_LOGE("snprintf_s paramName error %d ", errno);
}
SystemWriteParam(paramName, change);
}
int IsForbidden(const char *fieldStr)
{
UNUSED(fieldStr);
return 0;
}
int SetImportantValue(Service *service, const char *attrName, int value, int flag)
{
UNUSED(attrName);
UNUSED(flag);
INIT_ERROR_CHECK(service != NULL, return SERVICE_FAILURE, "Set service attr failed! null ptr.");
if (value >= MIN_IMPORTANT_LEVEL && value <= MAX_IMPORTANT_LEVEL) { // -20~19
service->attribute |= SERVICE_ATTR_IMPORTANT;
service->importance = value;
} else {
INIT_LOGE("Importance level = %d, is not between -20 and 19, error", value);
return SERVICE_FAILURE;
}
return SERVICE_SUCCESS;
}
int ServiceExec(const Service *service)
{
INIT_ERROR_CHECK(service != NULL && service->pathArgs.count > 0,
return SERVICE_FAILURE, "Exec service failed! null ptr.");
if (service->importance != 0) {
if (setpriority(PRIO_PROCESS, 0, service->importance) != 0) {
INIT_LOGE("setpriority failed for %s, importance = %d", service->name, service->importance);
_exit(0x7f); // 0x7f: user specified
}
}
if (unsetenv("UV_THREADPOOL_SIZE") != 0) {
INIT_LOGE("set UV_THREADPOOL_SIZE error : %d.", errno);
}
// L2 Can not be reset env
if (execv(service->pathArgs.argv[0], service->pathArgs.argv) != 0) {
INIT_LOGE("service %s execve failed! err %d.", service->name, errno);
}
return SERVICE_SUCCESS;
}