cosmopolitan/test/libc
Justine Tunney 2ec413b5a9
Fix bugs in poll(), select(), ppoll(), and pselect()
poll() and select() now delegate to ppoll() and pselect() for assurances
that both polyfill implementations are correct and well-tested. Poll now
polyfills XNU and BSD quirks re: the hanndling of POLLNVAL and the other
similar status flags. This change resolves a misunderstanding concerning
how select(exceptfds) is intended to map to POLPRI. We now use E2BIG for
bouncing requests that exceed the 64 handle limit on Windows. With pipes
and consoles on Windows our poll impl will now report POLLHUP correctly.

Issues with Windows path generation have been fixed. For example, it was
problematic on Windows to say: posix_spawn_file_actions_addchdir_np("/")
due to the need to un-UNC paths in some additional places. Calling fstat
on UNC style volume path handles will now work. posix_spawn now supports
simulating the opening of /dev/null and other special paths on Windows.

Cosmopolitan no longer defines epoll(). I think wepoll is a nice project
for using epoll() on Windows socket handles. However we need generalized
file descriptor support to make epoll() for Windows work well enough for
inclusion in a C library. It's also not worth having epoll() if we can't
get it to work on XNU and BSD OSes which provide different abstractions.
Even epoll() on Linux isn't that great of an abstraction since it's full
of footguns. Last time I tried to get it to be useful I had little luck.
Considering how long it took to get poll() and select() to be consistent
across platforms, we really have no business claiming to have epoll too.
While it'd be nice to have fully implemented, the only software that use
epoll() are event i/o libraries used by things like nodejs. Event i/o is
not the best paradigm for handling i/o; threads make so much more sense.
2024-09-02 00:29:52 -07:00
..
calls Fix bugs in poll(), select(), ppoll(), and pselect() 2024-09-02 00:29:52 -07:00
fmt Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
intrin Make improvements 2024-09-01 01:27:47 -07:00
log Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
mem Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
nexgen32e Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
proc Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
runtime Make realloc() go 100x faster on Linux/NetBSD 2024-07-07 12:40:30 -07:00
sock Fix bugs in poll(), select(), ppoll(), and pselect() 2024-09-02 00:29:52 -07:00
stdio Fix bugs in poll(), select(), ppoll(), and pselect() 2024-09-02 00:29:52 -07:00
str Make improvements 2024-09-01 01:27:47 -07:00
thread Fix pthread_kill_test flake on qemu 2024-08-16 21:18:26 -07:00
time Update Musl Libc code 2024-07-30 22:51:29 -07:00
tinymath Release Cosmopolitan v3.8.0 2024-08-30 20:14:07 -07:00
x Run clang-format (#1197) 2024-06-01 16:30:43 -04:00
xed Remove .internal from more header filenames 2024-08-04 12:52:25 -07:00
BUILD.mk Upgrade to 2022-era LLVM LIBCXX 2024-05-27 02:12:27 -07:00