mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 01:17:35 +00:00
Libraries: Create top level directory for libraries.
Things were getting a little crowded in the project root, so this patch moves the Lib*/ directories into Libraries/.
This commit is contained in:
parent
63814ffebf
commit
04b9dc2d30
328 changed files with 36 additions and 36 deletions
120
Libraries/LibC/time.cpp
Normal file
120
Libraries/LibC/time.cpp
Normal file
|
@ -0,0 +1,120 @@
|
|||
#include <Kernel/Syscall.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/times.h>
|
||||
#include <time.h>
|
||||
|
||||
extern "C" {
|
||||
|
||||
time_t time(time_t* tloc)
|
||||
{
|
||||
struct timeval tv;
|
||||
struct timezone tz;
|
||||
if (gettimeofday(&tv, &tz) < 0)
|
||||
return (time_t)-1;
|
||||
if (tloc)
|
||||
*tloc = tv.tv_sec;
|
||||
return tv.tv_sec;
|
||||
}
|
||||
|
||||
int gettimeofday(struct timeval* __restrict__ tv, void* __restrict__)
|
||||
{
|
||||
int rc = syscall(SC_gettimeofday, tv);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
char* ctime(const time_t*)
|
||||
{
|
||||
return const_cast<char*>("ctime() not implemented");
|
||||
}
|
||||
|
||||
static inline bool __is_leap_year(int year)
|
||||
{
|
||||
return ((year % 4 == 0) && ((year % 100 != 0) || (year % 400) == 0));
|
||||
}
|
||||
|
||||
static const int __days_per_month[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
|
||||
static const int __seconds_per_day = 60 * 60 * 24;
|
||||
|
||||
static void time_to_tm(struct tm* tm, time_t t)
|
||||
{
|
||||
int days = t / __seconds_per_day;
|
||||
int remaining = t % __seconds_per_day;
|
||||
tm->tm_sec = remaining % 60;
|
||||
remaining /= 60;
|
||||
tm->tm_min = remaining % 60;
|
||||
tm->tm_hour = remaining / 60;
|
||||
tm->tm_wday = (4 + days) % 7;
|
||||
int year;
|
||||
for (year = 1970; days >= 365 + __is_leap_year(year); ++year)
|
||||
days -= 365 + __is_leap_year(year);
|
||||
tm->tm_year = year - 1900;
|
||||
tm->tm_yday = days;
|
||||
tm->tm_mday = 1;
|
||||
if (__is_leap_year(year) && days == 59)
|
||||
++tm->tm_mday;
|
||||
if (__is_leap_year(year) && days >= 59)
|
||||
--days;
|
||||
int month;
|
||||
for (month = 0; month < 11 && days >= __days_per_month[month]; ++month)
|
||||
days -= __days_per_month[month];
|
||||
tm->tm_mon = month;
|
||||
tm->tm_mday += days;
|
||||
}
|
||||
|
||||
time_t mktime(struct tm* tm)
|
||||
{
|
||||
int days = 0;
|
||||
int seconds = tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
|
||||
for (int year = 70; year < tm->tm_year; ++year)
|
||||
days += 365 + __is_leap_year(1900 + year);
|
||||
tm->tm_yday = tm->tm_mday - 1;
|
||||
for (int month = 0; month < tm->tm_mon; ++month)
|
||||
tm->tm_yday += __days_per_month[month];
|
||||
days += tm->tm_yday;
|
||||
return days * __seconds_per_day + seconds;
|
||||
}
|
||||
|
||||
struct tm* localtime(const time_t* t)
|
||||
{
|
||||
if (!t)
|
||||
return nullptr;
|
||||
static struct tm tm_buf;
|
||||
time_to_tm(&tm_buf, *t);
|
||||
return &tm_buf;
|
||||
}
|
||||
|
||||
struct tm* gmtime(const time_t* t)
|
||||
{
|
||||
// FIXME: This is obviously not correct. What about timezones bro?
|
||||
return localtime(t);
|
||||
}
|
||||
|
||||
char* asctime(const struct tm*)
|
||||
{
|
||||
ASSERT_NOT_REACHED();
|
||||
}
|
||||
|
||||
size_t strftime(char*, size_t, const char*, const struct tm*)
|
||||
{
|
||||
ASSERT_NOT_REACHED();
|
||||
}
|
||||
|
||||
long timezone;
|
||||
long altzone;
|
||||
char* tzname[2];
|
||||
int daylight;
|
||||
|
||||
void tzset()
|
||||
{
|
||||
ASSERT_NOT_REACHED();
|
||||
}
|
||||
|
||||
clock_t clock()
|
||||
{
|
||||
struct tms tms;
|
||||
times(&tms);
|
||||
return tms.tms_utime + tms.tms_stime;
|
||||
}
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue