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LibC: Implement clock() and add CLOCKS_PER_SEC define.

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This commit is contained in:
Andreas Kling 2019-05-17 20:19:03 +02:00
parent a182ea8c60
commit f015798af9
2 changed files with 11 additions and 0 deletions
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8
LibC/time.cpp
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@ -1,5 +1,6 @@
#include <time.h> #include <time.h>
#include <sys/time.h> #include <sys/time.h>
#include <sys/times.h>
#include <errno.h> #include <errno.h>
#include <assert.h> #include <assert.h>
#include <Kernel/Syscall.h> #include <Kernel/Syscall.h>
@ -110,4 +111,11 @@ void tzset()
ASSERT_NOT_REACHED(); ASSERT_NOT_REACHED();
} }
clock_t clock()
{
struct tms tms;
times(&tms);
return tms.tms_utime + tms.tms_stime;
}
} }

3
LibC/time.h
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@ -32,7 +32,10 @@ time_t time(time_t*);
char* ctime(const time_t*); char* ctime(const time_t*);
void tzset(); void tzset();
char *asctime(const struct tm*); char *asctime(const struct tm*);
#define CLOCKS_PER_SEC 1000
clock_t clock(); clock_t clock();
double difftime(time_t, time_t); double difftime(time_t, time_t);
size_t strftime(char* s, size_t max, const char* format, const struct tm*); size_t strftime(char* s, size_t max, const char* format, const struct tm*);