1/* $NetBSD: rump_curlwp___thread.h,v 1.3 2018/04/19 21:50:10 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2014 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 28extern __thread struct lwp *curlwp_storage; 29#ifdef RUMP__CURLWP_PRIVATE 30#include <rump/rumpuser.h> 31 32__thread struct lwp *curlwp_storage; 33static void 34lwproc_curlwpop(enum rumplwpop op, struct lwp *l) 35{ 36 37 switch (op) { 38 case RUMPUSER_LWP_CREATE: 39 case RUMPUSER_LWP_DESTROY: 40 break; 41 case RUMPUSER_LWP_SET: 42 KASSERT(curlwp_storage == NULL); 43 curlwp_storage = l; 44 break; 45 case RUMPUSER_LWP_CLEAR: 46 KASSERT(curlwp_storage == l); 47 curlwp_storage = NULL; 48 break; 49 } 50 /* 51 * Need to keep hypercall layer in sync, since it can use curlwp 52 * for things like mutexes. Should be fixed/adjusted somehow. 53 */ 54 rumpuser_curlwpop(op, l); 55} 56#endif 57 58static __inline struct lwp * __attribute__((const)) 59rump_curlwp_fast(void) 60{ 61 62 return curlwp_storage; 63} 64