Date: Tue, 17 Jun 2003 16:54:31 -0400 (EDT) From: Daniel Eischen <eischen@vigrid.com> To: Sergey Kosyakov <ks4usa@yahoo.com> Cc: freebsd-threads@freebsd.org Subject: Re: The first kse_create call Message-ID: <Pine.GSO.4.10.10306171650350.8492-100000@pcnet5.pcnet.com> In-Reply-To: <20030617185916.44649.qmail@web12401.mail.yahoo.com>
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> Hi, > > I'm trying to run simple program with kse. As I understood the very > first kse_create call does not create KSE but just assigns the mailbox > to the existing "default" KSE and makes upcall. May be I'm doing > something wrong, > but I never got upcall on the first kse. When I create another KSE (and > another KSE group) I immediatelly get the upcall for this (second) KSE. > Just interesting how does it work - may be the first KSE has special > behavior? This is the correct behavior. The first kse_create() does not generate an immediate upcall. It only flags the current context as being a KSE. An upcall in this initial KSE will take place under the same conditions as other KSEs (KSE mailbox has a thread mailbox pointer and thread blocks, quantum expires, etc). Subsequent kse_create() calls will generate upcalls immediately (well, at the mercy of the kernel scheduler). -- Dan Eischen
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