Date: Wed, 24 Oct 2018 18:42:13 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r339692 - head/lib/libc/sys Message-ID: <201810241842.w9OIgDCX035680@repo.freebsd.org>
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Author: markj Date: Wed Oct 24 18:42:13 2018 New Revision: 339692 URL: https://svnweb.freebsd.org/changeset/base/339692 Log: Clarify slightly the interaction between wait*() and pdfork(). There are multiple ways to wait for any child process to return a status (e.g., waitpid(-1, ...), waitid(P_ALL, ...)), so don't be so specific. MFC after: 1 week Sponsored by: The FreeBSD Foundation Modified: head/lib/libc/sys/wait.2 Modified: head/lib/libc/sys/wait.2 ============================================================================== --- head/lib/libc/sys/wait.2 Wed Oct 24 18:19:32 2018 (r339691) +++ head/lib/libc/sys/wait.2 Wed Oct 24 18:42:13 2018 (r339692) @@ -28,7 +28,7 @@ .\" @(#)wait.2 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd December 1, 2017 +.Dd October 24, 2018 .Dt WAIT 2 .Os .Sh NAME @@ -597,11 +597,11 @@ fields of .Fa infop must be checked against zero to determine if a process reported status. .Pp +The .Fn wait -called with -1 to wait for any child process will ignore a child that is -referenced by a process descriptor (see -.Xr pdfork 2 ) . -Specific processes can still be waited on by specifying the process ID. +family of functions will not return a child process created with +.Xr pdfork 2 +unless specifically directed to do so by specifying its process ID. .Sh ERRORS The .Fn wait
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