17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 52e0c549eSJonathan Adams * Common Development and Distribution License (the "License"). 62e0c549eSJonathan Adams * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 222e0c549eSJonathan Adams * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _SYS_TASKQ_H 277c478bd9Sstevel@tonic-gate #define _SYS_TASKQ_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <sys/types.h> 307c478bd9Sstevel@tonic-gate #include <sys/thread.h> 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #ifdef __cplusplus 337c478bd9Sstevel@tonic-gate extern "C" { 347c478bd9Sstevel@tonic-gate #endif 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #define TASKQ_NAMELEN 31 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate typedef struct taskq taskq_t; 397c478bd9Sstevel@tonic-gate typedef uintptr_t taskqid_t; 407c478bd9Sstevel@tonic-gate typedef void (task_func_t)(void *); 417c478bd9Sstevel@tonic-gate 42*35a5a358SJonathan Adams struct proc; 43*35a5a358SJonathan Adams 447c478bd9Sstevel@tonic-gate /* 457c478bd9Sstevel@tonic-gate * Public flags for taskq_create(): bit range 0-15 467c478bd9Sstevel@tonic-gate */ 477c478bd9Sstevel@tonic-gate #define TASKQ_PREPOPULATE 0x0001 /* Prepopulate with threads and data */ 487c478bd9Sstevel@tonic-gate #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 497c478bd9Sstevel@tonic-gate #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 502e0c549eSJonathan Adams #define TASKQ_THREADS_CPU_PCT 0x0008 /* number of threads as % of ncpu */ 51*35a5a358SJonathan Adams #define TASKQ_DC_BATCH 0x0010 /* Taskq uses SDC in batch mode */ 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate /* 547c478bd9Sstevel@tonic-gate * Flags for taskq_dispatch. TQ_SLEEP/TQ_NOSLEEP should be same as 557c478bd9Sstevel@tonic-gate * KM_SLEEP/KM_NOSLEEP. 567c478bd9Sstevel@tonic-gate */ 577c478bd9Sstevel@tonic-gate #define TQ_SLEEP 0x00 /* Can block for memory */ 587c478bd9Sstevel@tonic-gate #define TQ_NOSLEEP 0x01 /* cannot block for memory; may fail */ 597c478bd9Sstevel@tonic-gate #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 607c478bd9Sstevel@tonic-gate #define TQ_NOALLOC 0x04 /* cannot allocate memory; may fail */ 61*35a5a358SJonathan Adams #define TQ_FRONT 0x08 /* Put task at the front of the queue */ 627c478bd9Sstevel@tonic-gate 637c478bd9Sstevel@tonic-gate #ifdef _KERNEL 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate extern taskq_t *system_taskq; 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate extern void taskq_init(void); 682e0c549eSJonathan Adams extern void taskq_mp_init(void); 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 717c478bd9Sstevel@tonic-gate extern taskq_t *taskq_create_instance(const char *, int, int, pri_t, int, 727c478bd9Sstevel@tonic-gate int, uint_t); 73*35a5a358SJonathan Adams extern taskq_t *taskq_create_proc(const char *, int, pri_t, int, int, 74*35a5a358SJonathan Adams struct proc *, uint_t); 75*35a5a358SJonathan Adams extern taskq_t *taskq_create_sysdc(const char *, int, int, int, 76*35a5a358SJonathan Adams struct proc *, uint_t, uint_t); 777c478bd9Sstevel@tonic-gate extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 787c478bd9Sstevel@tonic-gate extern void nulltask(void *); 797c478bd9Sstevel@tonic-gate extern void taskq_destroy(taskq_t *); 807c478bd9Sstevel@tonic-gate extern void taskq_wait(taskq_t *); 817c478bd9Sstevel@tonic-gate extern void taskq_suspend(taskq_t *); 827c478bd9Sstevel@tonic-gate extern int taskq_suspended(taskq_t *); 837c478bd9Sstevel@tonic-gate extern void taskq_resume(taskq_t *); 847c478bd9Sstevel@tonic-gate extern int taskq_member(taskq_t *, kthread_t *); 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate #ifdef __cplusplus 897c478bd9Sstevel@tonic-gate } 907c478bd9Sstevel@tonic-gate #endif 917c478bd9Sstevel@tonic-gate 927c478bd9Sstevel@tonic-gate #endif /* _SYS_TASKQ_H */ 93