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xeecos/time.c

Last active June 24, 2025 09:02
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linux. set system time
Raw
time.c
#include <time.h>
#include <sys/time.h>
void setSystemTime(int year, int month, int day, int hour, int minute, int second)
{
struct tm *p = new struct tm();
p->tm_year = year - 1900;
p->tm_mon = month - 1;
p->tm_mday = day;
p->tm_hour = hour;
p->tm_min = minute;
p->tm_sec = second;
time_t utc_t = mktime(p);
delete(p);
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
tv.tv_sec = utc_t;
tv.tv_usec = 0;
settimeofday(&tv, &tz);
gettimeofday(&tv, &tz);
}
void get_time(time_t from, int* year, int* month, int* day, int* hour, int* minute, int*second)
{
struct tm *timeinfo = localtime(&from);
*year = timeinfo->tm_year + 1900;
*month = timeinfo->tm_mon + 1;
*day = timeinfo->tm_mday;
*hour = timeinfo->tm_hour;
*minute = timeinfo->tm_min;
*second = timeinfo->tm_sec;
}
svr.Get("/time",[](const Request &req, Response &res){
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
if(req.has_param("time"))
{
time_t t = atoi(req.get_param_value("time").c_str());
tv.tv_sec = t;
tv.tv_usec = 0;
settimeofday(&tv, &tz);
gettimeofday(&tv, &tz);
return res.set_content("{\"res\":\"done\"}", "application/json");
}
json info;
info["res"] = "done";
info["time"] = tv.tv_sec;
int year, month, day, hour, minute, second;
get_time(tv.tv_sec, &year, &month, &day, &hour, &minute, &second);
char date[100];
sprintf(date, "%d-%d-%d %d:%d:%d", year, month, day, hour, minute, second);
info["info"] = date;
return res.set_content(info.dump(), "application/json");
});
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