logs.cpp

#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <unistd.h>
#include "logs.h"

int Log::setLevel(int loglevel) {
    if (loglevel >= LOG_LEVEL_NONE && loglevel <= LOG_LEVEL_DEBUG) {
        log_level = loglevel;
        return log_level;
    } else {
        printf("error changing log level\n");
        this->ulogw(LOG_LEVEL_WARNINGS, "error changing log level");
        return -1;
    }

}

int Log::getLevel() {
    return LOG_LEVEL_DEBUG;
}


Log::Log() {
    log_level = LOG_LEVEL_DEBUG;
}

int Log::init(char *kernel_log) {
    struct stat st = {0};

    if (stat("logs", &st) == -1) {
        mkdir("logs", 0700);
    }

    logfile = fopen(kernel_log, "a+");
    if (logfile != nullptr) {
        snprintf(this->logname, MAX_FILE_LENGTH, "%s", kernel_log);
    } else {
        printf("error creating logs, finished.....");
        return -1;
    }

    log_level = LOG_LEVEL_DEBUG;
    mode = 0;
    return 0;
}

void Log::ulogw(int loglevel, const char *string, ...) {
    if (loglevel > log_level) return;

    char buf[500];
    struct tm *ttime;

    time_t tim;
    tim = time(&tim);
    ttime = localtime(&tim);
    sprintf(buf, "%02d-%02d %02d:%02d:%02d ", ttime->tm_mon + 1, ttime->tm_mday, ttime->tm_hour, ttime->tm_min,
            ttime->tm_sec);
    fprintf(logfile, "%s", buf);

    va_list arg;
    va_start(arg, string);
    vsnprintf(buf, sizeof(buf), string, arg);
    fprintf(logfile, "%s", buf);
    if (this->mode != MODE_SILENT)
        printf("%s", buf);
    va_end(arg);
    fprintf(logfile, "\n");
    printf("\n");
    fflush(logfile);
}

void Log::close() {
    fclose(logfile);
}