Path: utzoo!attcan!utgpu!watmath!mks!egisin
From: egisin@mks.UUCP (Eric Gisin)
Newsgroups: comp.unix.wizards
Subject: Re: bug in pclose(3)
Summary: waitpid is extendable
Message-ID: <633@mks.UUCP>
Date: 6 Jan 89 16:39:38 GMT
References: <261@ecijmm.UUCP> <14020053@hpisod2.HP.COM> <803@auspex.UUCP>
Organization: Mortice Kern Systems, Waterloo, Ont.
Lines: 14

In article <803@auspex.UUCP>, guy@auspex.UUCP (Guy Harris) writes:
> Since "waitfor()"/"wait4()" does things that "waitpid()" doesn't
> (namely, optionally fill in a "struct rusage"), I see no reason why the
> people at Berkeley would want to rename "wait{4|for}" to "waitpid". 
> They may want to provide "waitpid" as a procedure that calls
> "wait{4|for}", but that's a different matter. 

Declare waitpid as
	pid_t waitpid (pid_t pid, int *statp, int options, ...);
	#define	WRUSAGE	0x10
The option WRUSAGE can indicate that a fourth parameter
pointing to a struct rusage exists.

There's no need for half-a-dozen wait-like functions in 4.4 BSD.