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Kernel: Add support for the POLLWRBAND poll event

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This commit is contained in:
Idan Horowitz 2021-12-02 01:26:08 +02:00 • committed by Andreas Kling
parent f2fef049e1
commit 265764ff2f
3 changed files with 14 additions and 6 deletions
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6
Kernel/Syscalls/select.cpp
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@ -159,6 +159,8 @@ ErrorOr<FlatPtr> Process::sys$poll(Userspace<const Syscall::SC_poll_params*> use
block_flags |= BlockFlags::Write;
if (pfd.events & POLLPRI)
block_flags |= BlockFlags::ReadPriority;
if (pfd.events & POLLWRBAND)
block_flags |= BlockFlags::WritePriority;
TRY(fds_info.try_append({ move(description), block_flags }));
}
@ -208,6 +210,10 @@ ErrorOr<FlatPtr> Process::sys$poll(Userspace<const Syscall::SC_poll_params*> use
VERIFY(pfd.events & POLLOUT);
pfd.revents |= POLLOUT;
}
if (has_flag(fds_entry.unblocked_flags, BlockFlags::WritePriority)) {
VERIFY(pfd.events & POLLWRBAND);
pfd.revents |= POLLWRBAND;
}
}
if (pfd.revents)
fds_with_revents++;