Since the common language runtime (CLR) will be the premiere infrastructure for building applications in Windows® for some time to come, gaining a deep understanding of it will help you build efficient, industrial-strength applications. In this article, we'll explore CLR internals, including object instance layout, method table layout, method dispatching, interface-based dispatching, and various data structures.
We'll be using very simple code samples written in C#, so any implicit references to language syntax should default to C#. Some of the data structures and algorithms discussed will change for the Microsoft® .NET Framework 2.0, but the concepts should largely remain the same. We'll use the Visual Studio® .NET 2003 Debugger and the debugger extension Son of Strike (SOS) to peek into the data structures we discuss in this article. SOS understands CLR internal data structures and dumps out useful information. See the "Son of Strike" sidebar for loading SOS.dll into the Visual Studio .NET 2003 debugger process. Throughout the article, we will describe classes that have corresponding implementations in the Shared Source CLI (SSCLI), which you can download from msdn.microsoft.com/net/sscli. Figure 1 will help you navigate the megabytes of code in the SSCLI while searching for the referenced structures. Read more: MSDN Magazine
We'll be using very simple code samples written in C#, so any implicit references to language syntax should default to C#. Some of the data structures and algorithms discussed will change for the Microsoft® .NET Framework 2.0, but the concepts should largely remain the same. We'll use the Visual Studio® .NET 2003 Debugger and the debugger extension Son of Strike (SOS) to peek into the data structures we discuss in this article. SOS understands CLR internal data structures and dumps out useful information. See the "Son of Strike" sidebar for loading SOS.dll into the Visual Studio .NET 2003 debugger process. Throughout the article, we will describe classes that have corresponding implementations in the Shared Source CLI (SSCLI), which you can download from msdn.microsoft.com/net/sscli. Figure 1 will help you navigate the megabytes of code in the SSCLI while searching for the referenced structures. Read more: MSDN Magazine
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