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Rewrite special file handling on Windows

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This change gets GNU grep working. What caused it to not work, is it
wouldn't write to an output file descriptor when its dev/ino equaled
/dev/null's. So now we invent special dev/ino values for these files
This commit is contained in:
Justine Tunney 2023-10-14 01:06:00 -07:00
parent aca2261cda
commit 2db2f40a98
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GPG key ID: BE714B4575D6E328
53 changed files with 485 additions and 299 deletions
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10
libc/calls/park.c
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@ -47,13 +47,9 @@ static textwindows int _park_thread(uint32_t msdelay, sigset_t waitmask,
om = __sig_beginwait(waitmask);
if ((rc = _check_cancel()) != -1 && (rc = _check_signal(restartable)) != -1) {
unassert((wi = WaitForSingleObject(sem, msdelay)) != -1u);
if (wi != kNtWaitTimeout) {
_check_signal(false);
rc = eintr();
_check_cancel();
} else if ((rc = _check_signal(restartable))) {
_check_cancel();
}
if (restartable && !(pt->pt_flags & PT_RESTARTABLE)) rc = eintr();
rc |= _check_signal(restartable);
if (rc == -1 && errno == EINTR) _check_cancel();
}
__sig_finishwait(om);
atomic_store_explicit(&pt->pt_blocker, PT_BLOCKER_CPU, memory_order_release);