Processes, threads and synchronization
Short Description
Here we will discuss the fundamental notions which are processes and threads, in the architecture of the Windows NT/2000/XP operating systems. You must keep in mind that the CLR described in the previous chapter is a software layer loaded into a process by the runtime host when a .NET assembly is launched.
Website: www.theserverside.net | Filesize: 700kb
No of Page(s): 43
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A Memory Model Sensitive Checker for C#
Short Description
Abstract. Modern concurrent programming languages like Java and C# have a programming language level memory model; it captures the set of all allowed behaviors of programs on any implementation platform -uni- or multi-processor. Such a memory model is typically weaker than Sequential Consistency and allows reordering of operations within a program thread. Therefore, programs verified correct by assuming Sequential Consistency (that is, each thread proceeds in program order) may not behave correctly on certain platforms! The solution to this problem is to develop program checkers which are memory model sensitive. In this paper, we develop such an invariant checker for the programming language C#. Our checker identifies program states which are reached only because the C# memory model is more relaxed than Sequential Consistency. Furthermore, our checker identifies (a) operation reorderings which cause such undesirable states to be reached, and (b) simple program modifications - by inserting memory barrier operations - which prevent such undesirable reorderings.
Website: www.comp.nus.edu.sg | Filesize: 210kb
No of Page(s): 16
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C# Versus Java
Short Description
Microsoft describes C# (”C sharp”) as a “simple, modern, object-oriented, and type-safe programming language derived from C and C++.” That statement would apply equally well to Java. In fact, after comparing the two languages, it’s obvious that prerelease descriptions of C# resemble Java more than C++. As Example 1 illustrates, the language features and syntax are similar. Example 1(a) is the canonical “Hello World” program in Java, while Example 1(b) is the program in C#.
Website: www1.cs.columbia.edu | Filesize: 572kb
No of Page(s): 13
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Object-Oriented Software Construction
Short Description
Object-oriented concurrency… Concurrency: very low-level mechanisms - semaphores, locks, critical sections, suspend, .
Website: se.ethz.ch | Filesize: 492kb
No of Page(s): 43
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CSCE 547 Windows Programming Multi-Threading
Short Description
Multi Threading
Multithreading is a mechanism for performing two or more tasks concurrently
In Multiple CPU systems threads could be allocated to CPUs, using SMP (Symmetric Multi-Processing) Single CPU or Multiple CPUs
In Single CPU each thread is given (approx) equal fractions of CPU time
Multi thread programming is difficult when threads must be synchronized with respect to certain resources
Website: docs.msdnaa.net | Filesize: 506kb
No of Page(s): 23
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Active C#
Short Description
Active C# is a variant of Microsoft’s C# that enhances the basic language with a direct support for concurrency and a new model for object communication. The C# compiler of the Shared Sources Common Language Infrastructure (SSCLI) served as a basis to extend the compiler. Modifications mainly concern the enhancement of C# with an active object concept and a novel communication paradigm based on formal dialogs.
Website: dotnet.zcu.cz | Filesize: 236kb
No of Page(s): 8
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An Introduction to Programming with C# Threads
Short Description
This paper provides an introduction to writing concurrent programs with “threads”. A threads facility allows you to write programs with multiple simultaneous points of execution, synchronizing through shared memory. The paper describes the basic thread and synchronization primitives, then for each primitive provides a tutorial on how to use it. The tutorial sections provide advice on the best ways to use the primitives, give warnings about what can go wrong and offer hints about how to avoid these pitfalls. The paper is aimed at experienced programmers who want to acquire practical expertise in writing concurrent programs. The programming language used is C#, but most of the tutorial applies equally well to other languages with thread support, such as Java.
Website: birrell.org | Filesize: 570kb
No of Page(s): 40
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