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Apply some touchups

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This commit is contained in:
Justine Tunney 2021-02-07 06:11:44 -08:00
parent 9f149e1de3
commit 2f3bd90216
139 changed files with 1188 additions and 1154 deletions
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54
libc/calls/clock_gettime.c
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@ -16,22 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/bits/safemacros.h"
#include "libc/calls/calls.h"
#include "libc/assert.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
#include "libc/fmt/conv.h"
#include "libc/mach.h"
#include "libc/nt/struct/filetime.h"
#include "libc/nt/struct/systemtime.h"
#include "libc/nt/synchronization.h"
#include "libc/sysv/consts/clock.h"
#include "libc/sysv/consts/fileno.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/time.h"
/**
* Returns nanosecond time.
@ -43,40 +33,34 @@
* @param clockid can be CLOCK_REALTIME, CLOCK_MONOTONIC, etc. noting
* that on Linux CLOCK_MONOTONIC is redefined to use the monotonic
* clock that's actually monotonic lool
* @param out_ts is where the nanoseconds are stored if non-NULL
* @return 0 on success or -1 w/ errno on error
* @param ts is where the result is stored
* @return 0 on success, or -1 w/ errno
* @error ENOSYS if clockid isn't available; in which case this function
* guarantees an ordinary timestamp is still stored to out_ts; and
* guarantees an ordinary timestamp is still stored to ts; and
* errno isn't restored to its original value, to detect prec. loss
* @see strftime(), gettimeofday()
* @asyncsignalsafe
*/
int clock_gettime(int clockid, struct timespec *out_ts) {
/* TODO(jart): Just ignore O/S for MONOTONIC and measure RDTSC on start */
int clock_gettime(int clockid, struct timespec *ts) {
int rc;
axdx_t ad;
struct NtFileTime ft;
if (!ts) return efault();
if (!IsWindows()) {
if (!IsXnu()) {
if (out_ts) {
out_ts->tv_sec = 0;
out_ts->tv_nsec = 0;
if ((rc = sys_clock_gettime(clockid, ts)) == -1 && errno == ENOSYS) {
ad = sys_gettimeofday((struct timeval *)ts, NULL, NULL);
assert(ad.ax != -1);
if (SupportsXnu() && ad.ax) {
ts->tv_sec = ad.ax;
ts->tv_nsec = ad.dx;
}
return sys_clock_gettime(clockid, out_ts);
} else {
int rc;
_Static_assert(sizeof(struct timeval) == sizeof(struct timespec));
if (out_ts) {
out_ts->tv_sec = 0;
out_ts->tv_nsec = 0;
}
rc = sys_gettimeofday((struct timeval *)out_ts, NULL);
if (out_ts) {
out_ts->tv_nsec *= 1000;
}
return rc;
ts->tv_nsec *= 1000;
rc = 0;
}
return rc;
} else {
struct NtFileTime ft;
GetSystemTimeAsFileTime(&ft);
*out_ts = FileTimeToTimeSpec(ft);
*ts = FileTimeToTimeSpec(ft);
return 0;
}
}