update code

2019-07-12 20:45:46 +08:00
commit 750a54c15f
131 changed files with 49139 additions and 0 deletions
--- a/Source/core/db/db.js
+++ b/Source/core/db/db.js
@@ -0,0 +1,120 @@
+/*
+ * @project: TERA
+ * @version: Development (beta)
+ * @license: MIT (not for evil)
+ * @copyright: Yuriy Ivanov (Vtools) 2017-2019 [progr76@gmail.com]
+ * Web: https://terafoundation.org
+ * Twitter: https://twitter.com/terafoundation
+ * Telegram:  https://t.me/terafoundation
+*/
+
+"use strict";
+const fs = require('fs');
+module.exports = class 
+{
+    constructor()
+    {
+        this.DBMap = {}
+    }
+    CheckPathDB()
+    {
+        var Path = GetDataPath("DB");
+        CheckCreateDir(Path)
+    }
+    CloseDBFile(name, bdelete)
+    {
+        this.LastHash = undefined
+        this.WasUpdate = 1
+        var Item = this.DBMap[name];
+        if(Item)
+        {
+            let bDelete = bdelete;
+            let Name = name;
+            fs.close(Item.fd, function (err)
+            {
+                if(!err)
+                {
+                    if(bDelete)
+                    {
+                        var fname = GetDataPath("DB/" + Name);
+                        fs.unlink(fname, function (err)
+                        {
+                            if(err)
+                                ToLog(err)
+                        })
+                    }
+                }
+                else
+                {
+                    ToLog(err)
+                }
+            })
+            delete this.DBMap[name]
+        }
+    }
+    OpenDBFile(name, bWrite, bExist)
+    {
+        if(bWrite && global.READ_ONLY_DB)
+        {
+            ToLogTrace("CANNOT WRITE - DB IN READ_ONLY MODE!!!")
+            process.exit()
+        }
+        if(bWrite)
+            CheckStartOneProcess(name + "-run")
+        this.LastHash = undefined
+        this.WasUpdate = 1
+        var Item = this.DBMap[name];
+        if(Item === undefined)
+        {
+            if(!this.WasCheckPathDB)
+            {
+                this.CheckPathDB()
+                this.WasCheckPathDB = true
+            }
+            var fname = GetDataPath("DB/" + name);
+            if(!fs.existsSync(fname))
+            {
+                if(bExist)
+                {
+                    this.DBMap[name] = null
+                    return null;
+                }
+                var fd = fs.openSync(fname, "w+");
+                fs.closeSync(fd)
+            }
+            var fd = fs.openSync(fname, "r+");
+            var stat = fs.statSync(fname);
+            var size = stat.size;
+            Item = {name:name, fname:fname, fd:fd, size:size, FillRows:0, CountRows:0, }
+            this.DBMap[name] = Item
+        }
+        return Item;
+    }
+};
+var MapCheckProcess = {};
+var BlockDB = new module.exports();
+
+function CheckStartOneProcess(Name)
+{
+    if(global.UpdateMode)
+        return ;
+    if(global.READ_ONLY_DB || MapCheckProcess[Name])
+        return ;
+    MapCheckProcess[Name] = 1;
+    var path = GetDataPath("DB/" + Name);
+    if(fs.existsSync(path))
+    {
+        fs.unlinkSync(path);
+    }
+    try
+    {
+        BlockDB.OpenDBFile(Name);
+    }
+    catch(e)
+    {
+        ToLog("****** DETECT START ANOTHER PROCESS for: " + Name);
+        ToLogTrace("EXIT");
+        process.exit();
+    }
+};
+global.CheckStartOneProcess = CheckStartOneProcess;