Date: Wed, 19 Sep 2001 17:46:42 -0600 From: Nate Williams <nate@yogotech.com> To: John Baldwin <jhb@FreeBSD.ORG> Cc: julian@FreeBSD.ORG, arch@FreeBSD.ORG Subject: Re: sigsuspend() and KSE Message-ID: <15273.11874.366229.387658@nomad.yogotech.com> In-Reply-To: <XFMail.010919161625.jhb@FreeBSD.org> References: <XFMail.010919161625.jhb@FreeBSD.org>
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> /* > * Suspend process until signal, providing mask to be set > * in the meantime. Note nonstandard calling convention: > * libc stub passes mask, not pointer, to save a copyin. > ***** XXXKSE this doesn't make sense under KSE. > ***** Do we suspend the thread or all threads in the process? > ***** How do we suspend threads running NOW on another processor? > */ > > Here's my opinion: > > sigsuspend() just suspends the current thread. When a signal is posted, it > wakes up all threads blocked on sigsuspend whose mask matches that signal. I > can see it still making sense, but perhaps being of limited usefulness in a > threaded program. What has limited usefulness? Being able to suspend all threads, or waking up all threads? Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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