1 /* $NetBSD: rumpuser_int.h,v 1.2 2010/03/22 09:39:02 pooka Exp $ */ 2 3 /* 4 * Copyright (c) 2008 Antti Kantee. All Rights Reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <rump/rumpuser.h> 29 30 extern kernel_lockfn rumpuser__klock; 31 extern kernel_unlockfn rumpuser__kunlock; 32 extern int rumpuser__wantthreads; 33 34 #define KLOCK_WRAP(a) \ 35 do { \ 36 int nlocks; \ 37 rumpuser__kunlock(0, &nlocks); \ 38 a; \ 39 rumpuser__klock(nlocks); \ 40 } while (/*CONSTCOND*/0) 41 42 #define DOCALL(rvtype, call) \ 43 { \ 44 rvtype rv; \ 45 rv = call; \ 46 if (rv == -1) \ 47 *error = errno; \ 48 else \ 49 *error = 0; \ 50 return rv; \ 51 } 52 53 #define DOCALL_KLOCK(rvtype, call) \ 54 { \ 55 rvtype rv; \ 56 int nlocks; \ 57 rumpuser__kunlock(0, &nlocks); \ 58 rv = call; \ 59 rumpuser__klock(nlocks); \ 60 if (rv == -1) \ 61 *error = errno; \ 62 else \ 63 *error = 0; \ 64 return rv; \ 65 } 66