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Merge pull request #210 from Dennisbonke/time-stuff

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options/ansi: Add several time related functions
This commit is contained in:
Alexander van der Grinten 2021-01-16 18:05:17 +01:00 committed by GitHub
parent ddf5d1c2a2 c40c2d2a86
commit 8005e83b84
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 34 additions and 6 deletions
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36
options/ansi/generic/time-stubs.cpp
View file

@ -3,6 +3,7 @@
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <limits.h>
#include <wchar.h>
#include <stdlib.h>
@ -29,10 +30,19 @@ static file_window *get_localtime_window() {
return &window;
}
// Function taken from musl
clock_t clock(void) {
__ensure(!"Not implemented");
__builtin_unreachable();
struct timespec ts;
if(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts))
return -1;
if(ts.tv_sec > LONG_MAX / 1000000 || ts.tv_nsec / 1000 > LONG_MAX - 1000000 * ts.tv_sec)
return -1;
return ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
}
double difftime(time_t a, time_t b){
return a - b;
}
@ -40,9 +50,15 @@ time_t mktime(struct tm *ptr){
__ensure(!"Not implemented");
__builtin_unreachable();
}
int timespec_get(struct timespec *ptr, int base){
__ensure(!"Not implemented");
__builtin_unreachable();
/* There is no other implemented value than TIME_UTC; all other values
* are considered erroneous. */
// Function taken from musl
int timespec_get(struct timespec *ts, int base) {
if(base != TIME_UTC)
return 0;
int ret = clock_gettime(CLOCK_REALTIME, ts);
return ret < 0 ? 0 : base;
}
char *asctime(const struct tm *ptr){
@ -514,6 +530,16 @@ struct tm *localtime_r(const time_t *unix_gmt, struct tm *res) {
return res;
}
char *asctime_r(const struct tm *tm, char *buf) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
char *ctime_r(const time_t *, char *) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
char *strptime(const char *__restrict, const char *__restrict,
struct tm *__restrict) {
__ensure(!"Not implemented");

4
options/ansi/include/time.h
View file

@ -10,7 +10,7 @@
// [7.27.1] Components of time
#define CLOCKS_PER_SEC 1000000000
#define CLOCKS_PER_SEC ((clock_t)1000000)
#define TIME_UTC 1
@ -98,6 +98,8 @@ int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *);
int clock_settime(clockid_t, const struct timespec *);
struct tm *localtime_r(const time_t *, struct tm *);
char *asctime_r(const struct tm *tm, char *buf);
char *ctime_r(const time_t *, char *);
char *strptime(const char *__restrict, const char *__restrict,
struct tm *__restrict);