1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1991-1998 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* 28*0Sstevel@tonic-gate * t_lock.h: Prototypes for disp_locks, plus include files 29*0Sstevel@tonic-gate * that describe the interfaces to kernel synch. 30*0Sstevel@tonic-gate * objects. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #ifndef _SYS_T_LOCK_H 34*0Sstevel@tonic-gate #define _SYS_T_LOCK_H 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifndef _ASM 39*0Sstevel@tonic-gate #include <sys/machlock.h> 40*0Sstevel@tonic-gate #include <sys/param.h> 41*0Sstevel@tonic-gate #include <sys/mutex.h> 42*0Sstevel@tonic-gate #include <sys/rwlock.h> 43*0Sstevel@tonic-gate #include <sys/semaphore.h> 44*0Sstevel@tonic-gate #include <sys/condvar.h> 45*0Sstevel@tonic-gate #endif /* _ASM */ 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate #ifdef __cplusplus 48*0Sstevel@tonic-gate extern "C" { 49*0Sstevel@tonic-gate #endif 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate #ifndef _ASM 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate /* 54*0Sstevel@tonic-gate * Mutual exclusion locks described in common/sys/mutex.h. 55*0Sstevel@tonic-gate * 56*0Sstevel@tonic-gate * Semaphores described in common/sys/semaphore.h. 57*0Sstevel@tonic-gate * 58*0Sstevel@tonic-gate * Readers/Writer locks described in common/sys/rwlock.h. 59*0Sstevel@tonic-gate * 60*0Sstevel@tonic-gate * Condition variables described in common/sys/condvar.h 61*0Sstevel@tonic-gate */ 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate #if defined(_KERNEL) 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate extern int ncpus; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * Dispatcher lock type, macros and routines. 69*0Sstevel@tonic-gate * 70*0Sstevel@tonic-gate * disp_lock_t is defined in machlock.h 71*0Sstevel@tonic-gate */ 72*0Sstevel@tonic-gate extern void disp_lock_enter(disp_lock_t *); 73*0Sstevel@tonic-gate extern void disp_lock_exit(disp_lock_t *); 74*0Sstevel@tonic-gate extern void disp_lock_exit_nopreempt(disp_lock_t *); 75*0Sstevel@tonic-gate extern void disp_lock_enter_high(disp_lock_t *); 76*0Sstevel@tonic-gate extern void disp_lock_exit_high(disp_lock_t *); 77*0Sstevel@tonic-gate extern void disp_lock_init(disp_lock_t *lp, char *name); 78*0Sstevel@tonic-gate extern void disp_lock_destroy(disp_lock_t *lp); 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate #define DISP_LOCK_INIT(lp) LOCK_INIT_CLEAR((lock_t *)(lp)) 81*0Sstevel@tonic-gate #define DISP_LOCK_HELD(lp) LOCK_HELD((lock_t *)(lp)) 82*0Sstevel@tonic-gate #define DISP_LOCK_DESTROY(lp) ASSERT(!DISP_LOCK_HELD(lp)) 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate /* 85*0Sstevel@tonic-gate * The following definitions are for assertions which can be checked 86*0Sstevel@tonic-gate * statically by tools like lock_lint. You can also define your own 87*0Sstevel@tonic-gate * run-time test for each. If you don't, we define them to 1 so that 88*0Sstevel@tonic-gate * such assertions simply pass. 89*0Sstevel@tonic-gate */ 90*0Sstevel@tonic-gate #ifndef NO_LOCKS_HELD 91*0Sstevel@tonic-gate #define NO_LOCKS_HELD 1 92*0Sstevel@tonic-gate #endif 93*0Sstevel@tonic-gate #ifndef NO_COMPETING_THREADS 94*0Sstevel@tonic-gate #define NO_COMPETING_THREADS 1 95*0Sstevel@tonic-gate #endif 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate #endif /* defined(_KERNEL) */ 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate #endif /* _ASM */ 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate #ifdef __cplusplus 102*0Sstevel@tonic-gate } 103*0Sstevel@tonic-gate #endif 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate #endif /* _SYS_T_LOCK_H */ 106