reboot_temperature/reboot_temperature.c

#include "reboot_temperature.h"

int get_temperature(char *path)
{
    char buffer[SIZE];

    FILE *fp;
    if ((fp = fopen(path, "r")) < 0) {
        return 1;               /* 文件不存在,则退出. */
    }

    while (fgets(buffer, SIZE, fp) != NULL) {
        ;
    }

    fclose(fp);
    return atoi(buffer) / 1000;
}

int log(int l_t, int c_t, char *log_file)
{
    time_t tmpcal_ptr;
    struct tm *tmp_ptr = NULL;

    time(&tmpcal_ptr);
    tmp_ptr = localtime(&tmpcal_ptr);

    FILE *fd = fopen(log_file, "a+");
    if (fd == NULL) {
        return 0;
    }
    fprintf(fd, "%d.%d.%d %d:%d:%d %s %d %s %d\n", (1900 + tmp_ptr->tm_year),
            (1 + tmp_ptr->tm_mon), tmp_ptr->tm_mday, tmp_ptr->tm_hour,
            tmp_ptr->tm_min, tmp_ptr->tm_sec,
            "树莓CPU温度", l_t, "达到可重启温度", c_t);
    fclose(fd);

    char temperature[270];
    sprintf(temperature, "%d.%d.%d %d:%d:%d %s %d %s %d\n", (1900 + tmp_ptr->tm_year), (1 + tmp_ptr->tm_mon), tmp_ptr->tm_mday, tmp_ptr->tm_hour, tmp_ptr->tm_min, tmp_ptr->tm_sec,
        "树莓CPU温度", l_t, "达到可重启温度", c_t);

    // 发送告警邮件
    //char *argv[]={"/root/qqMail/qqMail", "-l", "smtp.qq.com", "-p", "25", "-f", "1605227279", "-e", "dqqpbbbxoazibafd", "-q", "NIUYULING", "-r", "1605227279@QQ.COM", "-n", "NIUYULING", "-s", "Raspberrypi Temperature", "-t", temperature, (char*)0};
    //execv("/root/qqMail/qqMail", argv);

    char buffer[2700];
    sprintf(buffer, "/root/qqMail/qqMail -l smtp.qq.com -p 25 -f 1605227279 -e dqqpbbbxoazibafd -q NIUYULING -r 1605227279@QQ.COM -n NIUYULING -s \"Raspberrypi Temperature\" -t \"%s\"", temperature);
    //printf("%s\n", buffer);
    FILE *fp;
    fp = popen(buffer, "r");
    pclose(fp);

    return 0;
}

int get_executable_path(char *processdir, char *processname, int len)
{
    char *filename;
    if (readlink("/proc/self/exe", processdir, len) <= 0) {
        return -1;
    }
    filename = strrchr(processdir, '/');
    if (filename == NULL)
        return -1;
    ++filename;
    strcpy(processname, filename);
    *filename = '\0';
    return (int)(filename - processdir);
}

int main(int argc, char *argv[])
{
    char buffer[SIZE];
    char log_file[SIZE];
    memset(buffer, 0, SIZE);
    memset(log_file, 0, SIZE);

    char *inifile = "conf/config.ini";
    char path[SIZE] = { 0 };
    char executable_filename[SIZE] = { 0 };
    (void)get_executable_path(path, executable_filename, sizeof(path));
    inifile=strcat(path, inifile);

    if (daemon(1, 1) == -1) {
        perror("daemon");
        exit(1);
    }

    while (1) {
        getinikeystring("server", "thermal_zone", inifile, buffer); // 获取thermal_zone路径
        getinikeystring("server", "log_file", inifile, log_file);   // 获取日志文件名
        
        if (get_temperature(buffer) >= getinikeyint("server", "temperature", inifile)) {
            
            sync();
            if (getinikeyint("server", "off_power", inifile) == 1) {
                log(get_temperature(buffer), getinikeyint("server", "temperature", inifile), log_file);

                return reboot(RB_POWER_OFF);        // 关机
            } else {
                log(get_temperature(buffer), getinikeyint("server", "temperature", inifile), log_file);

                return reboot(RB_AUTOBOOT);         // 重启
            }
        }
        sleep(getinikeyint("server", "second", inifile));
    }

    return 1;
}