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Continue the discussion w.r.t. SIGEV_THREAD by nothing that pthread_join(3)

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should be out of the question and that thread stack cannot be recovered.
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jruoho 2010-05-19 08:02:46 +00:00
parent 1ac335ec2f
commit 9af468c2ef
1 changed files with 18 additions and 1 deletions
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19
share/man/man3/sigevent.3
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@ -1,4 +1,4 @@
.\" $NetBSD: sigevent.3,v 1.2 2010/05/19 06:59:44 wiz Exp $
.\" $NetBSD: sigevent.3,v 1.3 2010/05/19 08:02:46 jruoho Exp $
.\"
.\" Copyright (c) 2010 Jukka Ruohonen <jruohonen@iki.fi>
.\"
@ -141,6 +141,23 @@ the provided attribute specifies the behavior of the thread; see
the type is
.Va pthread_attr_t
in practice.)
.Pp
The threads are created as detached,
or in an unspecified way if
.Xr pthread_attr_setdetachstate 3
is used with
.Va sigev_notify_attributes
to set
.Dv PTHREAD_CREATE_JOINABLE .
It is not valid to call
.Xr pthread_join 3
in either case.
Hence, it is also impossible to determine the lifetime of the created thread.
This in turn means that it is neither possibly to recovery the memory nor
the address of the memory possibly dedicated as thread stack via
.Fn pthread_attr_setstack
or
.Fn pthread_attr_setstackaddr .
.El
.\"
.\" .Sh EXAMPLES