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feat: bp poll support #38

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Merged
sylvain-pierrot merged 1 commit into from
Sep 12, 2025
Merged

feat: bp poll support #38

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29 changes: 28 additions & 1 deletion bp_socket/af_bp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ struct proto_ops bp_proto_ops = { .family = AF_BP,
.mmap = sock_no_mmap,
.accept = sock_no_accept,
.getname = sock_no_getname,
// .poll = bp_poll,
.poll = bp_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
Expand Down Expand Up @@ -318,6 +318,33 @@ int bp_sendmsg(struct socket* sock, struct msghdr* msg, size_t size)
return ret;
}

__poll_t bp_poll(
struct file* file, struct socket* sock, struct poll_table_struct* wait)
{
struct sock* sk = sock->sk;
struct bp_sock* bp = bp_sk(sk);
__poll_t mask = 0;

sock_poll_wait(file, sock, wait);

if (sk->sk_err)
mask |= POLLERR;

if (sk->sk_shutdown & RCV_SHUTDOWN)
mask |= POLLRDHUP | POLLIN | POLLRDNORM;

if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;

if (!skb_queue_empty(&bp->rx_queue))
mask |= POLLIN | POLLRDNORM;

if (sock_writeable(sk))
mask |= POLLOUT | POLLWRNORM;

return mask;
}

int bp_recvmsg(struct socket* sock, struct msghdr* msg, size_t size, int flags)
{
struct sock* sk;
Expand Down
2 changes: 2 additions & 0 deletions bp_socket/af_bp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -38,5 +38,7 @@ int bp_setsockopt(struct socket* sock, int level, int optname, sockptr_t optval,
unsigned int optlen);
int bp_getsockopt(struct socket* sock, int level, int optname,
char __user* optval, int __user* optlen);
__poll_t bp_poll(
struct file* file, struct socket* sock, struct poll_table_struct* wait);

#endif