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64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* $NetBSD: rump_curlwp___thread.h,v 1.2 2014/03/16 15:30:05 pooka Exp $ */
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/*-
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* Copyright (c) 2014 Antti Kantee. 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, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, 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 AUTHOR ``AS IS'' AND ANY EXPRESS
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER 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
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* SUCH DAMAGE.
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*/
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extern __thread struct lwp *curlwp_storage;
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#ifdef RUMP__CURLWP_PRIVATE
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#include <rump/rumpuser.h>
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__thread struct lwp *curlwp_storage;
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static void
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lwproc_curlwpop(enum rumplwpop op, struct lwp *l)
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{
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switch (op) {
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case RUMPUSER_LWP_CREATE:
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case RUMPUSER_LWP_DESTROY:
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break;
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case RUMPUSER_LWP_SET:
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KASSERT(curlwp_storage == NULL);
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curlwp_storage = l;
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break;
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case RUMPUSER_LWP_CLEAR:
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KASSERT(curlwp_storage == l);
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curlwp_storage = NULL;
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break;
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}
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/*
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* Need to keep hypercall layer in sync, since it can use curlwp
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* for things like mutexes. Should be fixed/adjusted somehow.
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*/
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rumpuser_curlwpop(op, l);
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}
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#endif
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static inline struct lwp * __attribute__((const))
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rump_curlwp_fast(void)
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{
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return curlwp_storage;
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}
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