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Improve quality of our ANSI C clock() function

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It now works most excellently across all supported operating
sytsems (earlier it didn't work on NT and XNU). Demo code is
available in examples/clock.c and this change also adds some
of the newer ANSI C time functions like timespec_get(), plus
timespec_getres() which hasn't even come out yet as it's C23
This commit is contained in:
Justine Tunney 2022-09-05 21:43:49 -07:00
parent 7ff0ea8c13
commit 12d9e1e128
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GPG key ID: BE714B4575D6E328
24 changed files with 254 additions and 76 deletions
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3
libc/calls/struct/timespec.h
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@ -14,6 +14,8 @@ int futimens(int, const struct timespec[2]);
int nanosleep(const struct timespec *, struct timespec *);
int sys_futex(int *, int, int, const struct timespec *, int *);
int utimensat(int, const char *, const struct timespec[2], int);
int timespec_get(struct timespec *, int);
int timespec_getres(struct timespec *, int);
bool _timespec_eq(struct timespec, struct timespec) pureconst;
bool _timespec_gte(struct timespec, struct timespec) pureconst;
@ -21,6 +23,7 @@ int64_t _timespec_tomicros(struct timespec) pureconst;
int64_t _timespec_tomillis(struct timespec) pureconst;
int64_t _timespec_tonanos(struct timespec) pureconst;
struct timespec _timespec_add(struct timespec, struct timespec) pureconst;
struct timespec _timespec_fromnanos(int64_t) pureconst;
struct timespec _timespec_frommicros(int64_t) pureconst;
struct timespec _timespec_frommillis(int64_t) pureconst;
struct timespec _timespec_mono(void);