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Clean up some sleep code

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Justine Tunney 2022-10-08 02:40:44 -07:00
parent 9849b4c7ba
commit 672ccda37c
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GPG key ID: BE714B4575D6E328
35 changed files with 310 additions and 598 deletions
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41
libc/calls/nanosleep.c
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@ -16,18 +16,9 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/asan.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/timespec.internal.h"
#include "libc/dce.h"
#include "libc/calls/struct/timespec.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/sysv/consts/clock.h"
#include "libc/sysv/errfuns.h"
// TODO(jart): Just delegate to clock_nanosleep()
/**
* Sleeps for relative amount of time.
@ -45,32 +36,10 @@
*/
int nanosleep(const struct timespec *req, struct timespec *rem) {
int rc;
if (!req || (IsAsan() && (!__asan_is_valid_timespec(req) ||
(rem && !__asan_is_valid_timespec(rem))))) {
rc = efault();
} else if (req->tv_sec < 0 ||
!(0 <= req->tv_nsec && req->tv_nsec <= 999999999)) {
rc = einval();
} else if (IsLinux() || IsFreebsd() || IsNetbsd()) {
rc = sys_clock_nanosleep(CLOCK_REALTIME, 0, req, rem);
if (rc > 0) errno = rc, rc = -1;
} else if (IsOpenbsd()) {
rc = sys_nanosleep(req, rem);
} else if (IsXnu()) {
rc = sys_nanosleep_xnu(req, rem);
} else if (IsMetal()) {
rc = enosys();
if (!(rc = clock_nanosleep(CLOCK_REALTIME, 0, req, rem))) {
return 0;
} else {
rc = sys_nanosleep_nt(req, rem);
errno = rc;
return -1;
}
#ifdef SYSDEBUG
if (!__time_critical) {
STRACE("nanosleep(%s, [%s]) → %d% m", DescribeTimespec(rc, req),
DescribeTimespec(rc, rem), rc);
}
#endif
return rc;
}