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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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4
libc/intrin/pthread_unref.c
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@ -23,9 +23,7 @@
static bool _pthread_deref(struct PosixThread *pt) {
int refs = atomic_load_explicit(&pt->pt_refs, memory_order_acquire);
if (!refs) return true;
unassert(refs > 0);
return !atomic_fetch_sub(&pt->pt_refs, 1);
return !refs || !atomic_fetch_sub(&pt->pt_refs, 1);
}
void _pthread_unref(struct PosixThread *pt) {