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Fix bugs with recent change

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This change makes further effort towards improving our poll()
implementation on the New Technology. The stdin worker didn't work out
so well for Python so it's not being used for now. System call tracing
with the --strace flag should now be less noisy now on Windows unless
you modify the strace.internal.h defines to turn on some optional ones
that are most useful for debugging the system call wrappers.
This commit is contained in:
Justine Tunney 2022-04-16 10:40:23 -07:00
parent 933411ba99
commit dc0ea6640e
127 changed files with 1354 additions and 866 deletions
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23
libc/calls/nanosleep-nt.c
View file

@ -29,8 +29,9 @@
textwindows noinstrument int sys_nanosleep_nt(const struct timespec *req,
struct timespec *rem) {
int rc;
int64_t sec, nsec;
uint64_t ms, slice;
bool alertable;
uint32_t slice;
int64_t ms, sec, nsec;
if (__builtin_mul_overflow(req->tv_sec, 1000, &ms) ||
__builtin_add_overflow(ms, req->tv_nsec / 1000000, &ms)) {
ms = -1;
@ -44,18 +45,20 @@ textwindows noinstrument int sys_nanosleep_nt(const struct timespec *req,
rc = eintr();
break;
}
if (ms > __SIG_POLLING_INTERVAL_MS) {
slice = __SIG_POLLING_INTERVAL_MS;
slice = MIN(__SIG_POLLING_INTERVAL_MS, ms);
if (__time_critical) {
alertable = false;
} else {
slice = ms;
alertable = true;
POLLTRACE("sys_nanosleep_nt polling for %'ldms of %'ld");
}
if (SleepEx(slice, true) == kNtWaitIoCompletion) {
STRACE("IOCP TRIGGERED EINTR");
rc = eintr();
break;
if (SleepEx(slice, alertable) == kNtWaitIoCompletion) {
POLLTRACE("IOCP EINTR");
continue;
}
ms -= slice;
} while (ms);
} while (ms > 0);
ms = MAX(ms, 0);
if (rem) {
sec = ms / 1000;
nsec = ms % 1000 * 1000000000;