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Reformatted Serial.swift

This commit is contained in:
fedor 2023-03-16 10:22:27 -04:00
parent d8ac36b3bd
commit 066f585c53
1 changed files with 12 additions and 20 deletions
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32
Sources/tart/Serial.swift
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@ -1,52 +1,44 @@
//
// File.swift
//
//
// Created by Peter Nguyen on 19/12/2022.
//
import Foundation
func createPTY() -> Int32
{
func createPTY() -> Int32 {
var tty_fd: Int32 = -1
var sfd: Int32 = -1
var termios_ = termios()
let tty_path = UnsafeMutablePointer<CChar>.allocate(capacity: 1024)
var res = openpty(&tty_fd, &sfd, tty_path, nil, nil);
if(res < 0 ){
if (res < 0) {
perror("openpty error")
return -1
}
// close slave file descriptor
close(sfd)
res = fcntl(tty_fd, F_GETFL)
if(res < 0){
if (res < 0) {
perror("fcntl F_GETFL error")
return res
}
// set serial nonblocking
res = fcntl(tty_fd, F_SETFL, res | O_NONBLOCK)
if(res < 0){
if (res < 0) {
perror("fcntl F_SETFL O_NONBLOCK error")
return res
}
// set baudrate to 115200
tcgetattr(tty_fd, &termios_)
cfsetispeed(&termios_, speed_t(B115200))
cfsetospeed(&termios_, speed_t(B115200))
if(tcsetattr(tty_fd, TCSANOW, &termios_) != 0){
if (tcsetattr(tty_fd, TCSANOW, &termios_) != 0) {
perror("tcsetattr error")
return -1
}
print("Successfully open pty \(String(cString: tty_path))")
tty_path.deallocate()
return tty_fd
}