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 * Copyright 2018 Joyent, Inc. 28 */ 29 30 #ifndef _SYS_THREAD_H 31 #define _SYS_THREAD_H 32 33 #include <sys/types.h> 34 #include <sys/t_lock.h> 35 #include <sys/klwp.h> 36 #include <sys/signal.h> /* expected by including code */ 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 /* 43 * The thread object, its states, and the methods by which it 44 * is accessed. 45 */ 46 47 /* 48 * Values that t_state may assume. Note that t_state cannot have more 49 * than one of these flags set at a time. 50 */ 51 #define TS_FREE 0x00 /* Thread at loose ends */ 52 #define TS_SLEEP 0x01 /* Awaiting an event */ 53 #define TS_RUN 0x02 /* Runnable, but not yet on a processor */ 54 #define TS_ONPROC 0x04 /* Thread is being run on a processor */ 55 #define TS_ZOMB 0x08 /* Thread has died but hasn't been reaped */ 56 #define TS_STOPPED 0x10 /* Stopped, initial state */ 57 #define TS_WAIT 0x20 /* Waiting to become runnable */ 58 59 /* ctxop_t */ 60 61 /* afd_t needed by sys/file.h via sys/t_lock.h */ 62 typedef struct _afd_not_used afd_t; 63 64 struct turnstile; 65 struct panic_trap_info; 66 struct upimutex; 67 struct kproject; 68 struct on_trap_data; 69 struct waitq; 70 struct _kcpc_ctx; 71 struct _kcpc_set; 72 73 /* Definition for kernel thread identifier type */ 74 typedef uint64_t kt_did_t; 75 76 struct _kthread; 77 typedef struct _kthread *kthread_id_t; 78 79 typedef struct _kthread kthread_t; 80 81 extern kthread_t *_curthread(void); /* returns thread pointer */ 82 #define curthread (_curthread()) /* current thread pointer */ 83 84 #define _KTHREAD_INVALID ((void *)(uintptr_t)-1) 85 86 #define THREAD_NAME_MAX (32) 87 88 struct proc; 89 extern struct proc *_curproc(void); 90 #define curproc (_curproc()) /* current proc pointer */ 91 92 struct zone; 93 extern struct zone *_curzone(void); 94 #define curzone (_curzone()) /* current zone pointer */ 95 96 extern kthread_t *thread_create( 97 caddr_t stk, 98 size_t stksize, 99 void (*proc)(), 100 void *arg, 101 size_t len, 102 struct proc *pp, 103 int state, 104 pri_t pri); 105 extern void thread_exit(void) __NORETURN; 106 extern void thread_join(kt_did_t); 107 108 extern kthread_t *zthread_create(caddr_t, size_t, void (*)(), void *, size_t, 109 pri_t); 110 extern void zthread_exit(void) __NORETURN; 111 112 #ifdef __cplusplus 113 } 114 #endif 115 116 #endif /* _SYS_THREAD_H */ 117