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Threads Programming FAQ



Frequently Asked Questions about threads programming.

This FAQ about threads programming was compiled and written by Bryan O'Sullivan bos@serpentine.com with numerous contributions by others.

-2. Introduction (comp.programming.threads)
This posting consists of answers to many of the questions ...
-2.1. Reader contributions and comments (comp.programming.threads)
Your contributions, comments, and corrections are welcomed; mail ...
-2.2. How to read this FAQ (comp.programming.threads)
Some headers in this FAQ are preceded by words in parentheses, such ...
-2.3. Acknowledgments and caveats (comp.programming.threads)
Although this FAQ has been the result of a co-operative effort, ...
-3. What are threads? (Programming)
A thread is an encapsulation of the flow of control in a program. ...
-3.1. Why are threads interesting? (Programming)
A context switch between two threads in a single process ...
-3.2. A little history (Programming threads)
If you are interested in reading about the history of threads, see ...
-4. What are the main families of threads? (Programming)
There are two main families of threads:...
-4.1. POSIX-style threads (Programming)
This family consists of three subgroups:...
-4.2. Microsoft-style threads (Programming)
This family consists of two subgroups, both originally developed ...
-4.3. Others (Programming threads)
Mach and its derivatives (such as Digital UNIX) provide a ...
-5. Some terminology (Programming threads)
The terms here refer to each other in a myriad of ways, so the ...
-5.1. (DCE, POSIX, UI) Async safety (Programming threads)
Some library routines can be safely called from within ...
-5.2. Asynchronous and blocking system calls (Programming)
Most system calls, whether on Unix or other platforms, block (...
-5.3. Context switch (Programming threads)
A context switch is the action of switching a CPU between ...
-5.4. Critical section (Programming threads)
A critical section of code is one in which data that may be ...
-5.5. Lightweight process (Programming threads)
A lightweight process (also known in some implementations,...
-5.6. MT safety (Programming threads)
If some piece of code is described as MT-safe, this indicates that ...
-5.7. Protection boundary (Programming threads)
A protection boundary protects one software subsystem on a ...
-5.8. Scheduling (Programming threads)
Scheduling involves deciding what thread should execute next on ...
-6. What are the different kinds of threads? (Programming)
There are two main kinds of threads implementations:...
-6.1. Architectural differences (Programming threads)
User-space threads live without any support from the kernel; ...
-6.2. Performance differences (Programming threads)
In terms of context switch time, user-space threads are the fastest,...
-6.3. Potential problems with functionality (Programming threads)
Because the kernel does not know about user threads, there is a ...
-7. Where can I find books on threads? (Programming)
There are several books available on programming with threads, ...
-7.1. POSIX-style threads (Programming - books on threads)
David R. Butenhof, Programming with POSIX Threads. Addison-Wesley,...
-7.2. Microsoft-style threads (Programming - books on threads)
Jim Beveridge, Robert Wiener, Multithreading Applications in Win32....
-7.3. Books on implementations (Programming threads)
If you are interested in how modern operating systems support ...
-7.4. The POSIX threads standard (Programming - books on threads)
To order ISO/IEC standard 9945-1:1996, which is also known ...
-8. Where can I obtain training on using threads? (Programming)
Organisation Contact ...
-9. (Unix) Are there any freely-available threads packages? (Programming)
* Xavier Leroy has written a POSIX ...
-10. (DCE, POSIX, UI) Why does my threaded program not handle signals sensibly? (Programming)
Signals and threads do not mix well. A lot of programmers start out ...
-11. (DCE?, POSIX) Why does everyone tell me to avoid asynchronous cancellation? (Programming threads)
Asynchronous cancellation of threads is, in general, evil. The ...
-12. Why are reentrant library and system call interfaces good? (Programming threads)
There are two approaches to providing system calls and ...
-12.1. (DCE, POSIX, UI) When should I use thread-safe "r" library calls? (Programming)
If your system provides threads, it will probably provide a set ...
-13. (POSIX) How can I perform a join on any thread? (Programming)
UI threads allow programmers to join on any thread that happens ...
-14. (DCE, UI, POSIX) After I create a certain number of threads, my program crashes (Programming)
By default, threads are created non-detached. You need to perform ...
-15. Where can I find POSIX thread benchmarks? (Programming)
I do not know of any benchmarks....
-16. Does any DBMS vendor provide a thread-safe interface? (Programming)
Oracle 7.3 and above provide thread-safe database client interfaces,...
-17. Why is my threaded program running into performance problems? (Programming)
There are many possible causes for performance problems ...
-18. What tools will help me to program with threads? (Programming)
* The TNF Tools are a set of extensible tools that allow users ...
-19. What operating systems provide threads? (Programming)
Vendor OS version Threads model POSIX API ...
-20. What about other threads-related software?
* Douglas C. Schmidt has written a ...
-21. Where can I find other information on threads? (Programming)
* The most comprehensive collection of threads-related ...
-21.1. Articles appearing in periodicals (Programming threads)
* An introduction to programming with threads, ...
-22. Notice of copyright and permissions (comp.programming.threads)
Answers to Frequently Asked Questions for comp.programming....









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