1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 27 */ 28 29 #ifndef _SYS_THREAD_H 30 #define _SYS_THREAD_H 31 32 #include <sys/types.h> 33 #include <sys/t_lock.h> 34 #include <sys/klwp.h> 35 #include <sys/signal.h> /* expected by including code */ 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* 42 * The thread object, its states, and the methods by which it 43 * is accessed. 44 */ 45 46 /* 47 * Values that t_state may assume. Note that t_state cannot have more 48 * than one of these flags set at a time. 49 */ 50 #define TS_FREE 0x00 /* Thread at loose ends */ 51 #define TS_SLEEP 0x01 /* Awaiting an event */ 52 #define TS_RUN 0x02 /* Runnable, but not yet on a processor */ 53 #define TS_ONPROC 0x04 /* Thread is being run on a processor */ 54 #define TS_ZOMB 0x08 /* Thread has died but hasn't been reaped */ 55 #define TS_STOPPED 0x10 /* Stopped, initial state */ 56 #define TS_WAIT 0x20 /* Waiting to become runnable */ 57 58 /* ctxop_t */ 59 60 /* afd_t needed by sys/file.h via sys/t_lock.h */ 61 typedef struct _afd_not_used afd_t; 62 63 struct turnstile; 64 struct panic_trap_info; 65 struct upimutex; 66 struct kproject; 67 struct on_trap_data; 68 struct waitq; 69 struct _kcpc_ctx; 70 struct _kcpc_set; 71 72 /* Definition for kernel thread identifier type */ 73 typedef uint64_t kt_did_t; 74 75 struct _kthread; 76 typedef struct _kthread *kthread_id_t; 77 78 typedef struct _kthread kthread_t; 79 80 extern kthread_t *_curthread(void); /* returns thread pointer */ 81 #define curthread (_curthread()) /* current thread pointer */ 82 83 #define _KTHREAD_INVALID ((void *)(uintptr_t)-1) 84 85 86 struct proc; 87 extern struct proc *_curproc(void); 88 #define curproc (_curproc()) /* current proc pointer */ 89 90 struct zone; 91 extern struct zone *_curzone(void); 92 #define curzone (_curzone()) /* current zone pointer */ 93 94 extern kthread_t *thread_create( 95 caddr_t stk, 96 size_t stksize, 97 void (*proc)(), 98 void *arg, 99 size_t len, 100 struct proc *pp, 101 int state, 102 pri_t pri); 103 extern void thread_exit(void) __NORETURN; 104 extern void thread_join(kt_did_t); 105 106 extern kthread_t *zthread_create(caddr_t, size_t, void (*)(), void *, size_t, 107 pri_t); 108 extern void zthread_exit(void) __NORETURN; 109 110 #ifdef __cplusplus 111 } 112 #endif 113 114 #endif /* _SYS_THREAD_H */ 115