Subj : Re: Implementing a lowlevel thread library in C++ for windows
To   : comp.programming.threads
From : Joe Seigh
Date : Mon Jun 06 2005 08:14 am

DeltaOne wrote:
> Hi,
> I am supposed to implement a low level thread library for windows and
> its for user level threads not kernel threads in C++. Although i have
> programmed using UNIX threads but i dont have any knowledge of
> implementing threads. Can any one suggest me some documents to go
> through.
> 
Look at  Fibers which are part of the windows api.  They're essentially
coroutines and you'll have to create a whole api layer to put in your own.
user thread scheduling.  There won't be a whole lot of benefit from doing
this and quite a bit of disadvantage.  Do not use setjmp/longjmp to do
userthread context saving/dispatching unless you are into extreme pain
and failure.

You're going to have to learn to write a scheduler/dispatcher and synchronization
primatives.  It's not a trivial exercise.

Joe Seigh

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