[记]Rust在多线程里使用串口
1.
toml
[dependencies] serial = "0.4.0" encoding = "0.2.33"
--
use std::io::{Read, Write}; use std::sync::{Arc, Mutex}; use std::thread; use std::time::Duration; use serial; use encoding::{DecoderTrap,EncoderTrap, Encoding}; use encoding::all::GBK; // extern crate serial; // use std::time::Duration; // use std::thread; use serial::prelude::*; use std::io::prelude::*; // pub fn write(&mut self, _v: &Vec<u8>) { // self.write(v) // } // } pub fn main() { const SETTINGS: serial::PortSettings = serial::PortSettings { baud_rate: serial::Baud9600, char_size: serial::Bits8, parity: serial::ParityNone, stop_bits: serial::Stop1, flow_control: serial::FlowNone, }; let mut pport = serial::open("COM41").unwrap(); pport.configure(&SETTINGS).unwrap(); pport.set_timeout(Duration::from_millis(10)).unwrap(); let port = Arc::new(Mutex::new(pport)); let p2 = Arc::clone(&port); // let p2 = port.clone(); let handle = thread::spawn(move || { let mut buf: Vec<u8> = (0..255).collect(); for j in 0..100 { let mut _bytes_read = p2.lock().unwrap(); if let Ok(zs) = _bytes_read.read(&mut buf[..]) { let data = GBK.decode(&buf[0..zs], DecoderTrap::Ignore).unwrap(); println!("{}",data); }else{ println!("none"); thread::sleep(Duration::from_millis(300)); } } }); // let request_temperature: Vec<u8> = vec![0xAA]; for i in 0..10 { { let mut ssend=port.lock().unwrap(); ssend.write(&GBK.encode("at\r\n", EncoderTrap::Ignore).unwrap()).unwrap(); // Mutex::unlock(ssend); } thread::sleep(Duration::from_millis(300)); } handle.join(); }
输出
OK
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OK
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OK
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OK
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OK
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2.
toml
serialport = "4.2.0"
use std::time; fn main() { if let Ok(mut port) = serialport::new("COM3", 115200) .timeout(time::Duration::from_millis(20)).open(){ if let Ok(mut portcopy) = port.try_clone(){ std::thread::spawn(move||{ let mut buffer = [0; 32]; loop{ if let Ok(ssize) = portcopy.read(&mut buffer){ println!("recv-size:{}",ssize); println!("get:{:?}",buffer); }; } }); } for _ in 0..1000{ if let Ok(ssize)=port.write(b"at\r\n"){ println!("send-size:{}",ssize); }; // port.s std::thread::sleep(std::time::Duration::from_millis(10)); } } }
输出
recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 send-size:4 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 send-size:4 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] send-size:4 recv-size:9 get:[97, 116, 13, 13, 10, 79, 75, 13, 10, 0
3.
toml:
serial-rs = "0.2.1"
esleep = "1.1.0"
static mut Ppport:Option<serial_rs::windows::COMPort> = None; use std::io::{Write,Read}; fn main() { if let Ok(cd) = serial_rs::windows::COMPort::new("COM112".to_string(), Some(serial_rs::SerialPortSettings::default().baud(115200))){ unsafe{ Ppport = Some(cd); } }; std::thread::spawn(|| loop { unsafe { if let Some(dd) = &mut Ppport{ dd.write(b"1\n"); } } esleep::us(1);//延时1us }); std::thread::spawn(|| { let mut cdd = [0;1024]; loop { unsafe { if let Some(dd) = &mut Ppport{ if let Ok(_) = dd.read(&mut cdd){//blocking // println!("r:{}",dcd); let cddc = String::from_utf8_lossy(&cdd); println!("r:{}",cddc.to_string()); // cdd = [0;1024]; }; } } } } ); loop { esleep::ms(200);//延时200ms } }
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