On Windows a pair end now reports POLLIN after the peer's shutdown or close.
The console also reports POLLHUP after close; the loopback connection cannot
tell a close from a shutdown.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11 kqueue_scan (sys/kern/kern_event.c) re-inserts a reported
knote without EV_CLEAR or EV_DISPATCH at the tail of kq_head, and
knote_enqueue puts a knote that fires again at the tail as well, so the
next scan starts with the events that were not reported yet.
sceKernelWaitEqueue scanned the event list in place, so with num smaller
than the number of ready events the first ones were reported on every
call and the later ones starved. Each reported event that stays
registered now moves to the end of the list, in the order reported.
FreeBSD 11's kern_sigaction (sys/kern/kern_sig.c) calls
sigqueue_delete_proc, which drops the signal from the process queue and
from every thread's queue, whenever the new handler is SIG_IGN, or
SIG_DFL on a signal whose sigprop has SA_IGNORE (SIGURG, SIGCONT,
SIGCHLD, SIGIO, SIGWINCH, SIGINFO). It does so whether or not the
signal is blocked. sigaction and signal now take the signal off the
pending set in those cases, so a later unblock or wait never sees it.
FreeBSD 11.4 getsockaddr sets sa_len to the length argument, and
tcp_usr_bind, tcp_usr_connect, in_pcbbind_setup, in_pcbconnect_setup,
in6_pcbbind and in6_pcbladdr answer EINVAL when it is not the size of
the socket family's address. udp6_bind and udp6_connect pass an
IPv4-mapped address to the IPv4 code without that check when
IPV6_V6ONLY is clear, and udp6_send always checks it. bind and connect
on AF_INET and AF_INET6 sockets, and sendto on AF_INET6 datagram
sockets, now fail a longer address with EINVAL.
WSAPoll reports POLLHUP alone for a stream socket whose peer has closed, so
poll never returned POLLIN for it and a caller waiting for POLLIN did not see
the end of the stream. sopoll_generic reports a socket that can receive no
more as readable and adds POLLHUP only once it can send no more either.
poll now adds the requested read bit and keeps POLLHUP only after the socket
shut its own sending side. A reset or refused connection keeps WSAPoll's flags.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11.4's soreceive_generic waits in sbwait (sys/kern/uipc_socket.c,
uipc_sockbuf.c), whose msleep_sbt on so_rcv.sb_timeo returns EWOULDBLOCK
(35) for every socket type when SO_RCVTIMEO expires. On Windows the host
socket is non-blocking and native_transfer enforces the timeout itself,
but it reported WSAETIMEDOUT, which only datagram receives turned into
EAGAIN; a stream receive failed with ETIMEDOUT (60). A receive that
reaches the stored timeout now reports WSAEWOULDBLOCK, so every
receive returns EAGAIN, and a host WSAETIMEDOUT still maps to ETIMEDOUT.
FreeBSD 11 sendfile checks the file descriptor first, then looks up the
socket with getsock_cap, which answers ENOTSOCK for an open descriptor
that is not a socket and EBADF for one that is not open
(sys/kern/kern_sendfile.c, sys/kern/uipc_syscalls.c).
sendfile replaced the errno that Lookup had already set with EBADF. It
now reports the errno Lookup chose, so an open non-socket gives ENOTSOCK
and a closed descriptor still gives EBADF. The sentence about this gap
is cut from the sendfile debt entry and guest_sendfile covers both cases.
Both threw for a regular file. They now follow FreeBSD 11.4's
filt_vfsread and filt_vfswrite: a read event reports the file size less
the descriptor's offset and fires while that is not 0; a write event
always fires with data 0. A wait holding such an event polls it again
every millisecond, as no host call reports every file change. A size
above 1 and other vnode types still throw.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A context that never wrote DB_Z_INFO or DB_STENCIL_INFO had neither
register, so a draw testing depth or stencil without a depth target was
refused (PPSA24040, DB_DEPTH_CONTROL 0x777), and a depth or stencil plane
whose other register was never written stopped on a missing register.
Both now start at 0, FORMAT INVALID, initially and after CLEAR_STATE.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
FreeBSD 11 localtime.c initializes tzname to WILDABBR (" ") and settzname()
resets both entries to it before filling them from the zone's types, so a
zone with no daylight saving type keeps " " in tzname[1]. Windows left it
empty and Linux repeated tzname[0].
FreeBSD 11 fopen opens the path with _open, and vn_open_vnode refuses a
directory only for FWRITE or O_TRUNC, so fopen of a directory in a read
mode succeeds; Linux hosts already open it. On Windows CreateFileW
without FILE_FLAG_BACKUP_SEMANTICS refused it with EACCES.
fopen now opens such a path as a libkernel directory descriptor, which
libkernel registers in libc when it loads, and fclose and freopen remove
it from libkernel's table. Reads on the stream fail with EISDIR and set
the error indicator, as on a Linux host and FreeBSD's tmpfs: the Windows
CRT fails them already but reports EINVAL. Writes fail with EBADF, and
fseek, ftell and ungetc work, as on any read-only stream.
A PS5 (firmware 13.60) allocates with any flag value, zero-fills only for
flag 2 and returns 64-byte aligned blocks. Record the measured behaviour of
sceNetGetIfName, sceNetGetRandom, sceNetGetSystemTime, sceNetMemoryFree and
sceNetUsleep, which already match the console, and keep only their open gaps.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
