X windows on Microport 286 Unix

[Dirk Husemann Inf4 - hiwi,0.058I4,7908,09131-302036]

>From article <172 at trevan.UUCP>, by trevor at trevan.UUCP (trevor):
> 
> 	I am attemping to port x windows to Microport 286. Is there anyone else
> out there attempting to do the same. I have a couple of problems.
> 
> 1)	imake calls ftruncate and vfork. Could anyone tell me what these
> 	functions do?
> 

	At least about vfork() I can offer you some help:

		vfork() is a BSD fork(), the major difference being that
	the parent process is suspended (put to sleep) until the child pro-
	cess does an exec() or writes to the former parents data space.

	Thus, the data and text segments (and so forth) do _not_ have to
	be duplicated as it is done in fork().

>	....

	Hope, that's of some help to you!

	-Dirk

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