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Improve cancellations, randomness, and time

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- Exhaustively document cancellation points
- Rename SIGCANCEL to SIGTHR just like BSDs
- Further improve POSIX thread cancellations
- Ensure asynchronous cancellations work correctly
- Elevate the quality of getrandom() and getentropy()
- Make futexes cancel correctly on OpenBSD 6.x and 7.x
- Add reboot.com and shutdown.com to examples directory
- Remove underscore prefix from awesome timespec_*() APIs
- Create assertions that help verify our cancellation points
- Remove bad timespec APIs (cmp generalizes eq/ne/gt/gte/lt/lte)
This commit is contained in:
Justine Tunney 2022-11-05 19:49:41 -07:00
parent 0d7c265392
commit 3f0bcdc3ef
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GPG key ID: BE714B4575D6E328
173 changed files with 1599 additions and 782 deletions
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4
libc/calls/dup-nt.c
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@ -31,13 +31,11 @@
// Implements dup(), dup2(), dup3(), and F_DUPFD for Windows.
textwindows int sys_dup_nt(int oldfd, int newfd, int flags, int start) {
int64_t rc, proc, handle;
_unassert(oldfd >= 0);
_unassert(newfd >= -1);
_unassert(!(flags & ~O_CLOEXEC));
__fds_lock();
if (oldfd >= g_fds.n ||
if (!__isfdopen(oldfd) || newfd < -1 ||
(g_fds.p[oldfd].kind != kFdFile && g_fds.p[oldfd].kind != kFdSocket &&
g_fds.p[oldfd].kind != kFdConsole)) {
__fds_unlock();