shared memory #96

WelsonJS.Toolkit/WelsonJS.Toolkit/NamedSharedMemory.cs

@@ -123,13 +123,28 @@ namespace WelsonJS
 
         public string ReadText()
         {
-            return Marshal.PtrToStringAnsi(hFileMappingObject);
+            try 
+            {
+                if (hFile == IntPtr.Zero || hFileMappingObject == IntPtr.Zero)
+                {
+                    throw new Exception("Could not access the shared memory");
+                }
+                return Marshal.PtrToStringAnsi(hFileMappingObject);
+            }
+            catch (Exception e)
+            {
+                return "Exception: " + e.Message;
+            }
         }
 
         public bool WriteText(string text, int size = 1024)
         {
             try
             {
+                if (hFile == IntPtr.Zero || hFileMappingObject == IntPtr.Zero)
+                {
+                    throw new Exception("Could not access the shared memory");
+                }
                 byte[] bytes = Encoding.ASCII.GetBytes(text);
                 byte[] array = new byte[size + 1];
                 Array.Copy(bytes, array, bytes.Length);
@@ -161,17 +176,15 @@ namespace WelsonJS
         {
             try
             {
-                if (hFileMappingObject != IntPtr.Zero)
+                if (hFile == IntPtr.Zero || hFileMappingObject == IntPtr.Zero)
                 {
-                    FileMappingNative.UnmapViewOfFile(hFileMappingObject);
-                    hFileMappingObject = IntPtr.Zero;
+                    throw new Exception("Could not access the shared memory");
                 }
 
-                if (hFile != IntPtr.Zero)
-                {
-                    FileMappingNative.CloseHandle(hFile);
-                    hFile = IntPtr.Zero;
-                }
+                FileMappingNative.UnmapViewOfFile(hFileMappingObject);
+                hFileMappingObject = IntPtr.Zero;
+                FileMappingNative.CloseHandle(hFile);
+                hFile = IntPtr.Zero;
             }
             catch
             {

WelsonJS.Toolkit/WelsonJS.Toolkit/ProcessTool.cs

@@ -0,0 +1,69 @@
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Windows.Forms;
+
+namespace WelsonJS
+{
+    public class ProcessTool
+    {
+        public static List<int> ProcessIDs = new List<int>();
+
+        public static string OpenFileDialog()
+        {
+            string filepath = string.Empty;
+
+            using (OpenFileDialog openFileDialog = new OpenFileDialog())
+            {
+                openFileDialog.Filter = "All files (*.*)|*.*";
+                openFileDialog.RestoreDirectory = true;
+                if (openFileDialog.ShowDialog() == DialogResult.OK)
+                {
+                    filepath = openFileDialog.FileName;
+                }
+            }
+
+            return filepath;
+        }
+
+        public static int Open(string filepath)
+        {
+            if (string.IsNullOrEmpty(filepath))
+            {
+                filepath = OpenFileDialog();
+                if (string.IsNullOrEmpty(filepath))
+                {
+                    return -1;
+                }
+            }
+
+            try
+            {
+                Process process = new Process();
+                process.StartInfo.FileName = filepath;
+                process.Start();
+
+                int processId = process.Id;
+                ProcessIDs.Add(processId);
+
+                return processId;
+            }
+            catch
+            {
+                return -1;
+            }
+        }
+
+        public static bool Close(int processId)
+        {
+            try
+            {
+                Process.GetProcessById(processId).CloseMainWindow();
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+    }
+}

WelsonJS.Toolkit/WelsonJS.Toolkit/Prompt.cs

@@ -34,7 +34,7 @@ namespace WelsonJS
                 Text = caption,
                 StartPosition = FormStartPosition.CenterScreen
             };
-            Label textLabel = new Label() { Left = 50, Top = 20, Text = text };
+            Label textLabel = new Label() { Left = 50, Top = 20, Width = 400, Text = text };
             TextBox textBox = new TextBox() { Left = 50, Top = 50, Width = 400 };
             Button confirmation = new Button() { Text = "Ok", Left = 350, Width = 100, Top = 70, DialogResult = DialogResult.OK };
             confirmation.Click += (sender, e) => { prompt.Close(); };

WelsonJS.Toolkit/WelsonJS.Toolkit/Toolkit.cs

@@ -190,15 +190,34 @@ namespace WelsonJS
             return false;
         }
 
-        public void CompressLZ77(string input)
+        [ComVisible(true)]
+        public string GetFilePathFromDialog()
         {
-            Compression.LZ77.Compress(input);
+            return ProcessTool.OpenFileDialog();
         }
 
         [ComVisible(true)]
-        public string DecompressLZ77(string compressData)
+        public int OpenProcess(string filepath)
         {
-            return Compression.LZ77.Decompress(compressData);
+            return ProcessTool.Open(filepath);
+        }
+
+        [ComVisible(true)]
+        public bool CloseProcess(int processID)
+        {
+            return ProcessTool.Close(processID);
+        }
+
+        [ComVisible(true)]
+        public void CompressLZ77(string data)
+        {
+            Compression.LZ77.Compress(data);
+        }
+
+        [ComVisible(true)]
+        public string DecompressLZ77(string compressedData)
+        {
+            return Compression.LZ77.Decompress(compressedData);
         }
     }
 }

WelsonJS.Toolkit/WelsonJS.Toolkit/WelsonJS.Toolkit.csproj

@@ -49,6 +49,7 @@
   <ItemGroup>
     <Compile Include="Compression\LZ77.cs" />
     <Compile Include="NamedSharedMemory.cs" />
+    <Compile Include="ProcessTool.cs" />
     <Compile Include="Prompt.cs" />
     <Compile Include="Toolkit.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

lib/toolkit.js

@@ -78,10 +78,18 @@ function NamedSharedMemory(name) {
     this.clear = function() {
         return _interface.ClearSharedMemory(this.name);
     };
-	
-	this.close = function() {
-		return _interface.CloseSharedMemory(this.name);
-	};
+    
+    this.close = function() {
+        return _interface.CloseSharedMemory(this.name);
+    };
+}
+
+function openProcess(filepath) {
+    return getInterface().OpenProcess(filepath);
+}
+
+function closeProcess(pid) {
+    return getInterface().CloseProcess(pid);
 }
 
 exports.create = create;
@@ -93,8 +101,10 @@ exports.alert = alert;
 exports.confirm = confirm;
 exports.prompt = prompt;
 exports.NamedSharedMemory = NamedSharedMemory;
+exports.openProcess = openProcess;
+exports.closeProcess = closeProcess;
 
-exports.VERSIONINFO = "WelsonJS.Toolkit Native API version 0.3.3";
+exports.VERSIONINFO = "WelsonJS.Toolkit Native API version 0.3.4";
 exports.AUTHOR = "abuse@catswords.net";
 exports.global = global;
 exports.require = global.require;

testloader.js

@@ -868,14 +868,18 @@ var test_implements = {
         if (!memName) {
             console.log("Aborted.");
         } else {
+            // Open the shared memory
             mem = new Toolkit.NamedSharedMemory(memName);
+
+            // Open the second process will be communicate
+            Toolkit.openProcess();
+
+            // Listen the shared memory
             console.log("Listening the shared memory:", memName);
             while (true) {
                 var message = mem.readText(memName);
-                if (!!message) {
-                    console.log(memName + ": " + message);
-                }
-                sleep(1);
+                console.log(memName + ": ", message);
+                sleep(100);
             }
         }
     }