1 /* $NetBSD: rumpuser_int.h,v 1.10 2014/07/22 22:41:58 justin 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 #define seterror(value) do { if (error) *error = value;} while (/*CONSTCOND*/0) 33 34 extern struct rumpuser_hyperup rumpuser__hyp; 35 36 static inline void 37 rumpkern_unsched(int *nlocks, void *interlock) 38 { 39 40 rumpuser__hyp.hyp_backend_unschedule(0, nlocks, interlock); 41 } 42 43 static inline void 44 rumpkern_sched(int nlocks, void *interlock) 45 { 46 47 rumpuser__hyp.hyp_backend_schedule(nlocks, interlock); 48 } 49 50 #define KLOCK_WRAP(a) \ 51 do { \ 52 int nlocks; \ 53 rumpkern_unsched(&nlocks, NULL); \ 54 a; \ 55 rumpkern_sched(nlocks, NULL); \ 56 } while (/*CONSTCOND*/0) 57 58 #define DOCALL(rvtype, call) \ 59 { \ 60 rvtype rv; \ 61 rv = call; \ 62 if (rv == -1) \ 63 seterror(errno); \ 64 else \ 65 seterror(0); \ 66 return rv; \ 67 } 68 69 #define DOCALL_KLOCK(rvtype, call) \ 70 { \ 71 rvtype rv; \ 72 int nlocks; \ 73 rumpkern_unsched(&nlocks, NULL); \ 74 rv = call; \ 75 rumpkern_sched(nlocks, NULL); \ 76 if (rv == -1) \ 77 seterror(errno); \ 78 else \ 79 seterror(0); \ 80 return rv; \ 81 } 82 83 void rumpuser__thrinit(void); 84 85 #define NOFAIL(a) do {if (!(a)) abort();} while (/*CONSTCOND*/0) 86 87 #define NOFAIL_ERRNO(a) \ 88 do { \ 89 int fail_rv = (a); \ 90 if (fail_rv) { \ 91 printf("panic: rumpuser fatal failure %d (%s)\n", \ 92 fail_rv, strerror(fail_rv)); \ 93 abort(); \ 94 } \ 95 } while (/*CONSTCOND*/0) 96 97 int rumpuser__sig_rump2host(int); 98 int rumpuser__errtrans(int); 99 #ifdef __NetBSD__ 100 #define ET(_v_) return (_v_); 101 #else 102 #define ET(_v_) return (_v_) ? rumpuser__errtrans(_v_) : 0; 103 #endif 104 105 int rumpuser__random_init(void); 106