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Add the first shot at minimum KSE interface definitions.
This is to allow people to start playing with userland code. I will also add some stub syscalls in a minute.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=90884
76
sys/sys/kse.h
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76
sys/sys/kse.h
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/*
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* Copyright (C) 2001 Julian Elischer <julian@freebsd.org>
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* for the FreeBSD Foundation.
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice(s), this list of conditions and the following disclaimer as
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* the first lines of this file unmodified other than the possible
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* addition of one or more copyright notices.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice(s), this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef SYS_KSE_H
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#define SYS_KSE_H
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#include <machine/kse.h>
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/*
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* This file defines the structures needed for communication between
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* the userland and the kernel when running a KSE-based threading system.
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* The only programs that should see this file are the UTS and the kernel.
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*/
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/*
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* Each userland thread has one of these buried in it's
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* Thread control structure somewhere.
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*/
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struct thread_mailbox
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{
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struct thread_mailbox *next_completed;
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unsigned int flags;
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void *UTS_handle; /* The UTS can use this for anything */
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union kse_td_ctx ctx; /* thread's saved context goes here. */
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};
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/*
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* You need to supply one of these as the argument to the
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* kse_new() system call.
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*/
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struct kse_mailbox
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{
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struct thread_mailbox *current_thread;
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struct thread_mailbox *completed_threads;
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unsigned int flags;
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void *UTS_handle; /* The UTS can use this for anything */
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};
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#define KEMBXF_CRITICAL 0x00000001
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struct kse_global_mailbox
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{
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unsigned int flags;
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};
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#define GMBXF_CRITICAL 0x00000001
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/* some provisional sycalls: */
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#endif
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