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Make forking off threads reliable on Windows

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This change makes posix_spawn_test no longer flaky on Windows, by (1)
fixing a race condition in wait(), and (2) removing a misguided vfork
implementation which was letting Windows bypass pthread_atfork().
This commit is contained in:
Justine Tunney 2023-07-30 08:55:01 -07:00
parent 2ebc5781a1
commit 58352df0a4
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GPG key ID: BE714B4575D6E328
30 changed files with 230 additions and 187 deletions
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2
libc/calls/fdatasync-nt.c
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@ -23,6 +23,6 @@
textwindows int sys_fdatasync_nt(int fd) {
// TODO(jart): what should we do with worker pipes?
if (!__isfdkind(fd, kFdFile)) return ebadf();
if (_check_interrupts(false, 0)) return -1;
if (_check_interrupts(0, 0)) return -1;
return FlushFileBuffers(g_fds.p[fd].handle) ? 0 : -1;
}