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      1  1.3  christos /*	$NetBSD: rump_curlwp___thread.h,v 1.3 2018/04/19 21:50:10 christos Exp $	*/
      2  1.1     pooka 
      3  1.1     pooka /*-
      4  1.1     pooka  * Copyright (c) 2014 Antti Kantee.  All Rights Reserved.
      5  1.1     pooka  *
      6  1.1     pooka  * Redistribution and use in source and binary forms, with or without
      7  1.1     pooka  * modification, are permitted provided that the following conditions
      8  1.1     pooka  * are met:
      9  1.1     pooka  * 1. Redistributions of source code must retain the above copyright
     10  1.1     pooka  *    notice, this list of conditions and the following disclaimer.
     11  1.1     pooka  * 2. Redistributions in binary form must reproduce the above copyright
     12  1.1     pooka  *    notice, this list of conditions and the following disclaimer in the
     13  1.1     pooka  *    documentation and/or other materials provided with the distribution.
     14  1.1     pooka  *
     15  1.1     pooka  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     16  1.1     pooka  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17  1.1     pooka  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  1.1     pooka  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  1.1     pooka  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  1.1     pooka  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  1.1     pooka  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  1.1     pooka  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  1.1     pooka  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  1.1     pooka  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  1.1     pooka  * SUCH DAMAGE.
     26  1.1     pooka  */
     27  1.1     pooka 
     28  1.1     pooka extern __thread struct lwp *curlwp_storage;
     29  1.2     pooka #ifdef RUMP__CURLWP_PRIVATE
     30  1.1     pooka #include <rump/rumpuser.h>
     31  1.1     pooka 
     32  1.1     pooka __thread struct lwp *curlwp_storage;
     33  1.1     pooka static void
     34  1.1     pooka lwproc_curlwpop(enum rumplwpop op, struct lwp *l)
     35  1.1     pooka {
     36  1.1     pooka 
     37  1.1     pooka 	switch (op) {
     38  1.1     pooka 	case RUMPUSER_LWP_CREATE:
     39  1.1     pooka 	case RUMPUSER_LWP_DESTROY:
     40  1.1     pooka 		break;
     41  1.1     pooka 	case RUMPUSER_LWP_SET:
     42  1.1     pooka 		KASSERT(curlwp_storage == NULL);
     43  1.1     pooka 		curlwp_storage = l;
     44  1.1     pooka 		break;
     45  1.1     pooka 	case RUMPUSER_LWP_CLEAR:
     46  1.1     pooka 		KASSERT(curlwp_storage == l);
     47  1.1     pooka 		curlwp_storage = NULL;
     48  1.1     pooka 		break;
     49  1.1     pooka 	}
     50  1.1     pooka 	/*
     51  1.1     pooka 	 * Need to keep hypercall layer in sync, since it can use curlwp
     52  1.1     pooka 	 * for things like mutexes.  Should be fixed/adjusted somehow.
     53  1.1     pooka 	 */
     54  1.1     pooka 	rumpuser_curlwpop(op, l);
     55  1.1     pooka }
     56  1.1     pooka #endif
     57  1.1     pooka 
     58  1.3  christos static __inline struct lwp * __attribute__((const))
     59  1.1     pooka rump_curlwp_fast(void)
     60  1.1     pooka {
     61  1.1     pooka 
     62  1.1     pooka 	return curlwp_storage;
     63  1.1     pooka }
     64