mirror of
https://gitee.com/openharmony/startup_init
synced 2024-11-28 02:41:12 +00:00
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <limits.h>
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#include <poll.h>
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#include <stdbool.h>
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#include "ueventd.h"
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#include "ueventd_read_cfg.h"
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#include "ueventd_socket.h"
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#define INIT_LOG_TAG "ueventd"
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#include "init_log.h"
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#include "init_socket.h"
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static void PollUeventdSocketTimeout(int ueventSockFd, bool ondemand)
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{
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struct pollfd pfd = {};
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pfd.events = POLLIN;
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pfd.fd = ueventSockFd;
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int timeout = ondemand ? UEVENTD_POLL_TIME : -1;
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int ret = -1;
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while (1) {
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pfd.revents = 0;
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ret = poll(&pfd, 1, timeout);
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if (ret == 0) {
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INIT_LOGI("poll ueventd socket timeout, ueventd exit");
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return;
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} else if (ret < 0) {
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INIT_LOGE("Failed to poll ueventd socket!");
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return;
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}
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if (pfd.revents & POLLIN) {
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ProcessUevent(ueventSockFd, NULL, 0); // Not require boot devices
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}
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}
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}
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int main(int argc, char **argv)
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{
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// start log
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EnableInitLog(INIT_INFO);
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char *ueventdConfigs[] = {"/etc/ueventd.config", "/vendor/etc/ueventd.config", NULL};
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int i = 0;
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while (ueventdConfigs[i] != NULL) {
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ParseUeventdConfigFile(ueventdConfigs[i++]);
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}
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bool ondemand = true;
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int ueventSockFd = GetControlSocket("ueventd");
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if (ueventSockFd < 0) {
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INIT_LOGW("Failed to get uevent socket, try to create");
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ueventSockFd = UeventdSocketInit();
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ondemand = false;
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}
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if (ueventSockFd < 0) {
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INIT_LOGE("Failed to create uevent socket!");
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return -1;
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}
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if (access(UEVENTD_FLAG, F_OK)) {
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INIT_LOGI("Ueventd started, trigger uevent");
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RetriggerUevent(ueventSockFd, NULL, 0); // Not require boot devices
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int fd = open(UEVENTD_FLAG, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
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if (fd < 0) {
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INIT_LOGE("Failed to create ueventd flag!");
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return -1;
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}
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(void)close(fd);
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} else {
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INIT_LOGI("ueventd start to process uevent message");
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ProcessUevent(ueventSockFd, NULL, 0); // Not require boot devices
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}
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PollUeventdSocketTimeout(ueventSockFd, ondemand);
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CloseUeventConfig();
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return 0;
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}
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