nonblock_bsd.go (1346B)
1 // Copyright 2021 The TCell Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use file except in compliance with the License. 5 // You may obtain a copy of the license at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //go:build darwin || dragonfly || freebsd || netbsd || openbsd 16 // +build darwin dragonfly freebsd netbsd openbsd 17 18 package tcell 19 20 import ( 21 "syscall" 22 23 "golang.org/x/sys/unix" 24 ) 25 26 // BSD systems use TIOC style ioctls. 27 28 // tcSetBufParams is used by the tty driver on UNIX systems to configure the 29 // buffering parameters (minimum character count and minimum wait time in msec.) 30 // This also waits for output to drain first. 31 func tcSetBufParams(fd int, vMin uint8, vTime uint8) error { 32 _ = syscall.SetNonblock(fd, true) 33 tio, err := unix.IoctlGetTermios(fd, unix.TIOCGETA) 34 if err != nil { 35 return err 36 } 37 tio.Cc[unix.VMIN] = vMin 38 tio.Cc[unix.VTIME] = vTime 39 if err = unix.IoctlSetTermios(fd, unix.TIOCSETAW, tio); err != nil { 40 return err 41 } 42 return nil 43 }