1 /* $NetBSD: rumpuser_int.h,v 1.3 2010/05/18 14:58:41 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 <stdlib.h> 29 30 #include <rump/rumpuser.h> 31 32 extern kernel_lockfn rumpuser__klock; 33 extern kernel_unlockfn rumpuser__kunlock; 34 extern int rumpuser__wantthreads; 35 36 #define KLOCK_WRAP(a) \ 37 do { \ 38 int nlocks; \ 39 rumpuser__kunlock(0, &nlocks, NULL); \ 40 a; \ 41 rumpuser__klock(nlocks, NULL); \ 42 } while (/*CONSTCOND*/0) 43 44 #define DOCALL(rvtype, call) \ 45 { \ 46 rvtype rv; \ 47 rv = call; \ 48 if (rv == -1) \ 49 *error = errno; \ 50 else \ 51 *error = 0; \ 52 return rv; \ 53 } 54 55 #define DOCALL_KLOCK(rvtype, call) \ 56 { \ 57 rvtype rv; \ 58 int nlocks; \ 59 rumpuser__kunlock(0, &nlocks, NULL); \ 60 rv = call; \ 61 rumpuser__klock(nlocks, NULL); \ 62 if (rv == -1) \ 63 *error = errno; \ 64 else \ 65 *error = 0; \ 66 return rv; \ 67 } 68