mirror of
https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
113 lines
4.0 KiB
JavaScript
113 lines
4.0 KiB
JavaScript
/**
|
|
* Copyright 2013 IBM Corp.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this 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.
|
|
**/
|
|
|
|
var RED = require("../../red/red");
|
|
var settings = RED.settings;
|
|
var util = require("util");
|
|
var fs = require('fs');
|
|
var plat = require('os').platform();
|
|
var pre = "\\\\.\\";
|
|
|
|
if (! plat.match(/^win/)) {
|
|
util.log("[26-rawserial.js] Advise: Only really needed for Windows boxes without serialport npm module installed.");
|
|
pre = "";
|
|
}
|
|
|
|
function RawSerialInNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
this.port = n.port;
|
|
this.split = n.split||null;
|
|
if (this.split == '\\n') this.split = "\n";
|
|
if (this.split == '\\r') this.split = "\r";
|
|
var node = this;
|
|
|
|
var setupSerial = function() {
|
|
node.inp = fs.createReadStream(pre+node.port);
|
|
node.inp.setEncoding('utf8');
|
|
var line = "";
|
|
node.inp.on('data', function (data) {
|
|
if (node.split != null) {
|
|
if (data == node.split) {
|
|
node.send({payload:line});
|
|
line = "";
|
|
}
|
|
else { line += data; }
|
|
}
|
|
else { node.send({payload:data}); }
|
|
});
|
|
//node.inp.on('end', function (error) {console.log("End", error);});
|
|
node.inp.on('close', function (error) {
|
|
util.log("[rawserial] "+node.port+" closed");
|
|
node.tout = setTimeout(function() {
|
|
setupSerial();
|
|
},settings.serialReconnectTime);
|
|
});
|
|
node.inp.on('error', function(error) {
|
|
if (error.code == "ENOENT") { util.log("[rawserial] port "+node.port+" not found"); }
|
|
else { util.log("[rawserial] "+node.port+" error "+error); }
|
|
node.tout = setTimeout(function() {
|
|
setupSerial();
|
|
},settings.serialReconnectTime);
|
|
});
|
|
}
|
|
setupSerial();
|
|
|
|
node.on('close', function() {
|
|
if (node.tout) { clearTimeout(node.tout); }
|
|
if (node.inp) { node.inp.pause(); }
|
|
});
|
|
|
|
}
|
|
RED.nodes.registerType("rawserial in",RawSerialInNode);
|
|
|
|
|
|
function RawSerialOutNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
this.port = n.port;
|
|
var node = this;
|
|
|
|
var setupSerial = function() {
|
|
node.oup = fs.createWriteStream(pre+node.port,{ flags:'w', encoding:'utf8', mode:0666 });
|
|
node.on("input", function(msg) {
|
|
if (msg.payload != null) {
|
|
node.oup.write(msg.payload);
|
|
}
|
|
});
|
|
node.oup.on('open', function (error) { util.log("[rawserial] opened "+node.port); });
|
|
node.oup.on('end', function (error) { console.log("End",error); });
|
|
node.oup.on('close', function (error) {
|
|
util.log("[rawserial] "+node.port+" closed");
|
|
node.tout = setTimeout(function() {
|
|
setupSerial();
|
|
},settings.serialReconnectTime);
|
|
});
|
|
node.oup.on('error', function(error) {
|
|
if (error.code == "EACCES") { util.log("[rawserial] can't access port "+node.port); }
|
|
else if (error.code == "EIO") { util.log("[rawserial] can't write to port "+node.port); }
|
|
else { util.log("[rawserial] "+node.port+" error "+error); }
|
|
node.tout = setTimeout(function() {
|
|
setupSerial();
|
|
},settings.serialReconnectTime);
|
|
});
|
|
}
|
|
setupSerial();
|
|
|
|
node.on('close', function() {
|
|
if (node.tout) { clearTimeout(node.tout); }
|
|
});
|
|
}
|
|
RED.nodes.registerType("rawserial out",RawSerialOutNode);
|