session close added

source/lib/http_client.js

@@ -0,0 +1,37 @@
+const http = require('http')
+
+module.exports = class http_client {
+    constructor(ip, port) {
+        this.#ip = ip
+        this.#port = port
+    }
+    async post(data, callback_answer, callback_error) {
+        // Build the post string from an object
+        
+        // An object of options to indicate where to post to
+        var post_options = {
+            host: this.#ip,
+            port: this.#port,
+            method: 'POST',
+            headers: {
+                'Content-Type': 'applicaiton/json',
+                'Content-Length': Buffer.byteLength(data)
+            }
+        }
+        // Set up the request
+        var request = http.request(post_options, function(res) {
+            res.setEncoding('utf8')
+            res.on('data', async function (answer) {
+                callback_answer(answer)
+            })
+        })
+        request.on('error', function(e) {
+            callback_error(e)
+        })
+        // post the data
+        request.write(data)
+        request.end()
+    }
+    #ip
+    #port
+}

source/lib/logger.js

@@ -0,0 +1,34 @@
+const fs = require('fs')
+const path = require('path')
+const node_time = require('node-datetime')
+const util = require('util')
+
+module.exports = class logger {
+    constructor(filepath) {
+        this.#filepath = filepath
+        this.#filename = path.basename(filepath)
+        var dirname = path.dirname(filepath)
+        
+        if (!fs.existsSync(dirname))
+            fs.mkdirSync(dirname, {recursive:true})
+    }
+    error(...arg) {
+        this.#log('error', arg)
+    }
+    log(...arg) {
+        this.#log('', arg)
+    }
+
+    #log(message = '', ...arg) {
+        var args = ''
+        arg.forEach(value => {
+            args += util.format(value) + ' '
+        })
+        args = (node_time.create().format('Y-m-d H:M:S')).toString() + ((message != '') ? ': ' + message : '') + ': ' + args
+        console.log(this.#filename + ': ' + args)
+        fs.appendFileSync(this.#filepath, args + '\n')
+    }
+    
+    #filepath
+    #filename
+}

source/lib/port_alloc.js

@@ -0,0 +1,47 @@
+class port {
+    constructor(value) {
+        this.#value = value
+        this.#free = true
+    }
+    get_value() {
+        return this.#value
+    }
+    set_free() {
+        this.#free = true
+    }
+    set_busy() {
+        this.#free = false
+    }
+    is_free() {
+        return this.#free
+    }
+    #value
+    #free
+}
+
+module.exports = class port_alloc {
+    constructor(port_begin, count) {
+        this.#ports = new Array()
+        for (var i = port_begin; i < port_begin + count; ++i) {
+            this.#ports.push(new port(i))
+        }
+    }
+    get() {
+        for (var i in this.#ports) {
+            if (this.#ports[i].is_free()) {
+                this.#ports[i].set_busy()
+                return this.#ports[i].get_value()
+            }
+        }
+        throw new Error('no free ports')
+    }
+    free(busy_port) {
+        for (var i in this.#ports) {
+            if (this.#ports[i].get_value() == busy_port) {
+                this.#ports[i].set_free()
+                return
+            }
+        }
+    }
+    #ports
+}