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