Switch to a version of select that is closer to bsd's version.

1 files changed, 86 insertions, 0 deletions

diff --git a/freebsd/sys/ttydisc.h b/freebsd/sys/ttydisc.h
new file mode 100644
index 00000000..00194988
--- /dev/null
+++ b/freebsd/sys/ttydisc.h
@@ -0,0 +1,86 @@
+/*-
+ * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Portions of this software were developed under sponsorship from Snow
+ * B.V., the Netherlands.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_TTYDISC_HH_
+#define	_SYS_TTYDISC_HH_
+
+#ifndef _SYS_TTY_HH_
+#error "can only be included through <sys/tty.h>"
+#endif /* !_SYS_TTY_HH_ */
+
+struct cv;
+struct thread;
+struct tty;
+struct uio;
+
+/* Top half routines. */
+void	ttydisc_open(struct tty *tp);
+void	ttydisc_close(struct tty *tp);
+int	ttydisc_read(struct tty *tp, struct uio *uio, int ioflag);
+int	ttydisc_write(struct tty *tp, struct uio *uio, int ioflag);
+void	ttydisc_optimize(struct tty *tp);
+
+/* Bottom half routines. */
+void	ttydisc_modem(struct tty *tp, int open);
+#define ttydisc_can_bypass(tp) ((tp)->t_flags & TF_BYPASS)
+int	ttydisc_rint(struct tty *tp, char c, int flags);
+size_t	ttydisc_rint_bypass(struct tty *tp, const void *buf, size_t len);
+void	ttydisc_rint_done(struct tty *tp);
+size_t	ttydisc_rint_poll(struct tty *tp);
+size_t	ttydisc_getc(struct tty *tp, void *buf, size_t len);
+int	ttydisc_getc_uio(struct tty *tp, struct uio *uio);
+size_t	ttydisc_getc_poll(struct tty *tp);
+
+/* Error codes for ttydisc_rint(). */
+#define	TRE_FRAMING	0x01
+#define	TRE_PARITY	0x02
+#define	TRE_OVERRUN	0x04
+#define	TRE_BREAK	0x08
+
+static __inline size_t
+ttydisc_read_poll(struct tty *tp)
+{
+
+	tty_lock_assert(tp, MA_OWNED);
+
+	return ttyinq_bytescanonicalized(&tp->t_inq);
+}
+
+static __inline size_t
+ttydisc_write_poll(struct tty *tp)
+{
+
+	tty_lock_assert(tp, MA_OWNED);
+
+	return ttyoutq_bytesleft(&tp->t_outq);
+}
+
+#endif /* !_SYS_TTYDISC_HH_ */