70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* $NetBSD: rumpuser_int.h,v 1.4 2010/11/15 15:23:32 pooka Exp $ */
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/*
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* Copyright (c) 2008 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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#include <stdlib.h>
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#include <rump/rumpuser.h>
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extern kernel_lockfn rumpuser__klock;
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extern kernel_unlockfn rumpuser__kunlock;
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extern int rumpuser__wantthreads;
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#define seterror(value) do { if (error) *error = value;} while (/*CONSTCOND*/0)
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#define KLOCK_WRAP(a) \
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do { \
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int nlocks; \
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rumpuser__kunlock(0, &nlocks, NULL); \
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a; \
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rumpuser__klock(nlocks, NULL); \
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} while (/*CONSTCOND*/0)
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#define DOCALL(rvtype, call) \
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{ \
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rvtype rv; \
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rv = call; \
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if (rv == -1) \
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seterror(errno); \
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else \
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seterror(0); \
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return rv; \
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}
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#define DOCALL_KLOCK(rvtype, call) \
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{ \
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rvtype rv; \
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int nlocks; \
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rumpuser__kunlock(0, &nlocks, NULL); \
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rv = call; \
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rumpuser__klock(nlocks, NULL); \
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if (rv == -1) \
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seterror(errno); \
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else \
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seterror(0); \
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return rv; \
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}
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