Advanced Mono Development: Best Practices Miguel de Icaza CTO, Ximian Nat Friedman VP Software Development, Ximian

© March 9, 2004 Novell Inc. 2 one Net: Information without boundaries…where the right people are connected with the right information at the right time to make the right decisions. The one Net vision Novell exteNd ™ Novell Nsure ™ Novell Nterprise ™ Novell Ngage SM : : : :

© March 9, 2004 Novell Inc. 3 The one Net vision Novell Nterprise is an innovative family of products which gives you the power to enable and manage the constant interaction of people with your business systems — regardless of who they are or where they are. Novell Nterprise ™ Novell exteNd ™ Novell Nsure ™ Novell Nterprise ™ Novell Ngage SM : : : :

© March 9, 2004 Novell Inc. 4 Mono Project: Two Main Goals. Improve Linux Developer Productivity. ISV Migration path from Windows to Linux. An Open Source implementation of.NET Framework.

© March 9, 2004 Novell Inc. 5 The Two Stacks. Mono Runtime Microsoft Compatibility Libraries Mono Libraries ASP.NET ADO.NET Windows.Form Java Compatibility iFolder Evolution# Gnome# Novell.LDAP ZipLib GTK# Apache Mono Mozilla MySQL/Postgress

© March 9, 2004 Novell Inc. 6 Compatible: What Mono Will Run. Mono 1.0 will run Microsoft.NET code that uses: mscorlib, System, System.Net System.Xml System.Web (ASP.NET Web Forms) System.Web.Services (ASP.NET Web Services) Remoting, and SOAP Remoting (compatibility issues) System.Drawing. Binary compatible: Compile on Windows Deploy on Linux.

© March 9, 2004 Novell Inc. 7 We have created our own development platform. Takes advantage of Open Source technologies. Takes advantage of Novell ® services. Novell.LDAP: Works on Mono and Windows. Binaries produced by mono run on Windows unmodified. The community is creating an ecosystem And we get to reuse third-party components from the Windows world for Desktop and Web Applications. Mono Has its Own Development Platform

© March 9, 2004 Novell Inc. 8 Mono SDK C# compiler Supports V1 and some V2 features of the C# language. Performs the task of compiler and linker. IL tools ilasm: Intermediate Language assembler. monodis: Library and executable disassembler. Debugger: mdb: low-level debugger Web Services wsdl: generate stubs from a WSDL or Disco document.

© March 9, 2004 Novell Inc. 9 The Mono Documentation Browser. Documentation for.NET Class Libraries Mono and Novell Specific class libraries. Wiki-like support People can edit, modify the documentation Upload contributions to centralized server. Sample MonoDoc

© March 9, 2004 Novell Inc. 10 MonoDevelop: A port of the venerable SharpDevelop from Windows. Modified to use the Linux Desktop. Take advantage of Linux-specific features. Advanced editing features. Integrated Debugging Environment Uses the Mono Debugger Core Engine. MonoDevelop: Integrated IDE

© March 9, 2004 Novell Inc. 11 Assemblies. Assemblies: The deployment Unit. They end in “.exe” or “.dll” They contain IL code and any resources needed. There is no difference to the runtime: $ mcs hello.cs -r:library.dll $ mcs hello.cs -r:program.exe $ mcs library.cs -target:library $ mcs program.cs -target:exe

© March 9, 2004 Novell Inc. 12 Sample Session. Compiling Software: Running your software: Behind the curtains: $ mcs program.cs $ mono program.cs $ monodis program.cs

© March 9, 2004 Novell Inc. 13 Disassembled code. // method line 2.method private static default int32 'Add' (int32 'a', int32 'b') cil managed {.param [1].param [2] // Method begins at RVA 0x20f4 // Code size 4 (0x4).maxstack 8 IL_0000: ldarg.0 IL_0001: ldarg.1 IL_0002: add IL_0003: ret } // end of method X::default int32 'Add' (int32 'a', int32 'b') static int Add (int a, int b) { return a + b; }

© March 9, 2004 Novell Inc. 14 Instrumentation. The Mono Runtime can instrument your program: You can create your own profiling modules. $ mono --profile program.exe $ mono --profile=coverage program.exe So far: Internal call cost. Code Coverage Analysis. Mono can call you at invoke/return time

© March 9, 2004 Novell Inc. 15 Developing a Sample Client + Server We will develop a client and a server. Nat will be doing the client side. Using Gtk# to write the GUI and Glade for rapid prototyping. Miguel will be doing the server side. Plain server-side development. We will use a web service.

Demonstration

© March 9, 2004 Novell Inc. 17 Interop with Java Converting Java classes to.NET assemblies The ikvmc command Exporting.NET classes to be used by Java Using netexp.exe Running your Java applications Today Mono use GNU Classpath Limited in functionality to GNU Classpath features Eclipse, Jython run.

© March 9, 2004 Novell Inc. 18 Information. Mono: Blog: primates.ximian.com/~miguel/activity-log.php

Questions & Answers

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