diff options
Diffstat (limited to 'sys/contrib/openzfs/include/os/freebsd/spl/sys/taskq.h')
| -rw-r--r-- | sys/contrib/openzfs/include/os/freebsd/spl/sys/taskq.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/include/os/freebsd/spl/sys/taskq.h b/sys/contrib/openzfs/include/os/freebsd/spl/sys/taskq.h new file mode 100644 index 000000000000..200f9e838b8d --- /dev/null +++ b/sys/contrib/openzfs/include/os/freebsd/spl/sys/taskq.h @@ -0,0 +1,115 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_TASKQ_H +#define _SYS_TASKQ_H + +#include <sys/types.h> +#include <sys/proc.h> +#include <sys/taskqueue.h> +#include <sys/thread.h> +#include <sys/ck.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define TASKQ_NAMELEN 31 + +typedef struct taskq { + struct taskqueue *tq_queue; +} taskq_t; + +typedef uintptr_t taskqid_t; +typedef void (task_func_t)(void *); + +typedef struct taskq_ent { + struct task tqent_task; + struct timeout_task tqent_timeout_task; + task_func_t *tqent_func; + void *tqent_arg; + taskqid_t tqent_id; + CK_LIST_ENTRY(taskq_ent) tqent_hash; + uint8_t tqent_type; + uint8_t tqent_registered; + uint8_t tqent_cancelled; + volatile uint32_t tqent_rc; +} taskq_ent_t; + +/* + * Public flags for taskq_create(): bit range 0-15 + */ +#define TASKQ_PREPOPULATE 0x0001 /* Prepopulate with threads and data */ +#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ +#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ +#define TASKQ_THREADS_CPU_PCT 0x0008 /* number of threads as % of ncpu */ +#define TASKQ_DC_BATCH 0x0010 /* Taskq uses SDC in batch mode */ + +/* + * Flags for taskq_dispatch. TQ_SLEEP/TQ_NOSLEEP should be same as + * KM_SLEEP/KM_NOSLEEP. + */ +#define TQ_SLEEP 0x00 /* Can block for memory */ +#define TQ_NOSLEEP 0x01 /* cannot block for memory; may fail */ +#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ +#define TQ_NOALLOC 0x04 /* cannot allocate memory; may fail */ +#define TQ_FRONT 0x08 /* Put task at the front of the queue */ + +#define TASKQID_INVALID ((taskqid_t)0) + +#define taskq_init_ent(x) +extern taskq_t *system_taskq; +/* Global dynamic task queue for long delay */ +extern taskq_t *system_delay_taskq; + +extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); +extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *, + uint_t, clock_t); +extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t, + taskq_ent_t *); +extern int taskq_empty_ent(taskq_ent_t *); +taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); +taskq_t *taskq_create_instance(const char *, int, int, pri_t, int, int, uint_t); +taskq_t *taskq_create_proc(const char *, int, pri_t, int, int, + struct proc *, uint_t); +taskq_t *taskq_create_sysdc(const char *, int, int, int, + struct proc *, uint_t, uint_t); +void nulltask(void *); +extern void taskq_destroy(taskq_t *); +extern void taskq_wait_id(taskq_t *, taskqid_t); +extern void taskq_wait_outstanding(taskq_t *, taskqid_t); +extern void taskq_wait(taskq_t *); +extern int taskq_cancel_id(taskq_t *, taskqid_t); +extern int taskq_member(taskq_t *, kthread_t *); +extern taskq_t *taskq_of_curthread(void); +void taskq_suspend(taskq_t *); +int taskq_suspended(taskq_t *); +void taskq_resume(taskq_t *); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_TASKQ_H */ |