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Put more thought into i/o polyfills

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wait4() is now solid enough to run `make -j100` on Windows. You can now
use MSG_DONTWAIT on Windows. There was a handle leak in accept() that's
been fixed. Our WIN32 overlapped i/o code has been simplified. Priority
class now inherits into subprocesses, so the verynice command will work
and the signal mask will now be inherited by execve() and posix_spawn()
This commit is contained in:
Justine Tunney 2023-11-06 16:38:44 -08:00
parent 736fdb757a
commit e961385e55
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GPG key ID: BE714B4575D6E328
52 changed files with 679 additions and 487 deletions
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2
libc/intrin/sigprocmask-nt.c
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@ -42,7 +42,7 @@ textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
if (how == SIG_BLOCK) {
oldmask = atomic_fetch_or_explicit(mask, *neu, memory_order_acq_rel);
} else if (how == SIG_UNBLOCK) {
oldmask = atomic_fetch_and_explicit(mask, *neu, memory_order_acq_rel);
oldmask = atomic_fetch_and_explicit(mask, ~*neu, memory_order_acq_rel);
} else { // SIG_SETMASK
oldmask = atomic_exchange_explicit(mask, *neu, memory_order_acq_rel);
}