From 64fa922ec013079f8f0c90fc9e93c56db3611d30 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Sun, 22 Apr 2018 21:25:06 +0300
Subject: Switch to dep

---
 vendor/maunium.net/go/tcell/tscreen_linux.go | 129 +++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 vendor/maunium.net/go/tcell/tscreen_linux.go

(limited to 'vendor/maunium.net/go/tcell/tscreen_linux.go')

diff --git a/vendor/maunium.net/go/tcell/tscreen_linux.go b/vendor/maunium.net/go/tcell/tscreen_linux.go
new file mode 100644
index 0000000..f92e929
--- /dev/null
+++ b/vendor/maunium.net/go/tcell/tscreen_linux.go
@@ -0,0 +1,129 @@
+// +build linux
+
+// Copyright 2017 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tcell
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+	"unsafe"
+)
+
+type termiosPrivate syscall.Termios
+
+func (t *tScreen) termioInit() error {
+	var e error
+	var newtios termiosPrivate
+	var fd uintptr
+	var tios uintptr
+	var ioc uintptr
+	t.tiosp = &termiosPrivate{}
+
+	if t.in, e = os.OpenFile("/dev/tty", os.O_RDONLY, 0); e != nil {
+		goto failed
+	}
+	if t.out, e = os.OpenFile("/dev/tty", os.O_WRONLY, 0); e != nil {
+		goto failed
+	}
+
+	tios = uintptr(unsafe.Pointer(t.tiosp))
+	ioc = uintptr(syscall.TCGETS)
+	fd = uintptr(t.out.(*os.File).Fd())
+	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
+		e = e1
+		goto failed
+	}
+
+	// On this platform, the baud rate is stored
+	// directly as an integer in termios.c_ospeed.
+	t.baud = int(t.tiosp.Ospeed)
+	newtios = *t.tiosp
+	newtios.Iflag &^= syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK |
+		syscall.ISTRIP | syscall.INLCR | syscall.IGNCR |
+		syscall.ICRNL | syscall.IXON
+	newtios.Oflag &^= syscall.OPOST
+	newtios.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON |
+		syscall.ISIG | syscall.IEXTEN
+	newtios.Cflag &^= syscall.CSIZE | syscall.PARENB
+	newtios.Cflag |= syscall.CS8
+
+	// This is setup for blocking reads.  In the past we attempted to
+	// use non-blocking reads, but now a separate input loop and timer
+	// copes with the problems we had on some systems (BSD/Darwin)
+	// where close hung forever.
+	newtios.Cc[syscall.VMIN] = 1
+	newtios.Cc[syscall.VTIME] = 0
+
+	tios = uintptr(unsafe.Pointer(&newtios))
+
+	// Well this kind of sucks, because we don't have TCSETSF, but only
+	// TCSETS.  This can leave some output unflushed.
+	ioc = uintptr(syscall.TCSETS)
+	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
+		e = e1
+		goto failed
+	}
+
+	signal.Notify(t.sigwinch, syscall.SIGWINCH)
+
+	if w, h, e := t.getWinSize(); e == nil && w != 0 && h != 0 {
+		t.cells.Resize(w, h)
+	}
+
+	return nil
+
+failed:
+	if t.in != nil {
+		t.in.Close()
+	}
+	if t.out != nil {
+		t.out.(*os.File).Close()
+	}
+	return e
+}
+
+func (t *tScreen) termioFini() {
+
+	signal.Stop(t.sigwinch)
+
+	<-t.indoneq
+
+	if t.out != nil {
+		fd := uintptr(t.out.(*os.File).Fd())
+		// XXX: We'd really rather do TCSETSF here!
+		ioc := uintptr(syscall.TCSETS)
+		tios := uintptr(unsafe.Pointer(t.tiosp))
+		syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0)
+		t.out.(*os.File).Close()
+	}
+	if t.in != nil {
+		t.in.Close()
+	}
+}
+
+func (t *tScreen) getWinSize() (int, int, error) {
+
+	fd := uintptr(t.out.(*os.File).Fd())
+	dim := [4]uint16{}
+	dimp := uintptr(unsafe.Pointer(&dim))
+	ioc := uintptr(syscall.TIOCGWINSZ)
+	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL,
+		fd, ioc, dimp, 0, 0, 0); err != 0 {
+		return -1, -1, err
+	}
+	return int(dim[1]), int(dim[0]), nil
+}
-- 
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