| 1 | /* $NetBSD: workqueue.h,v 1.1 2016/02/24 22:04:15 skrll Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2013 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Taylor R. Campbell. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _LINUX_WORKQUEUE_H_ |
| 33 | #define _LINUX_WORKQUEUE_H_ |
| 34 | |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/callout.h> |
| 37 | #include <sys/queue.h> |
| 38 | #include <sys/workqueue.h> |
| 39 | |
| 40 | #include <linux/kernel.h> |
| 41 | |
| 42 | #define INIT_DELAYED_WORK linux_INIT_DELAYED_WORK |
| 43 | #define INIT_WORK linux_INIT_WORK |
| 44 | #define alloc_ordered_workqueue linux_alloc_ordered_workqueue |
| 45 | #define cancel_delayed_work linux_cancel_delayed_work |
| 46 | #define cancel_delayed_work_sync linux_cancel_delayed_work_sync |
| 47 | #define cancel_work linux_cancel_work |
| 48 | #define cancel_work_sync linux_cancel_work_sync |
| 49 | #define destroy_workqueue linux_destroy_workqueue |
| 50 | #define flush_work linux_flush_work |
| 51 | #define flush_workqueue linux_flush_workqueue |
| 52 | #define queue_delayed_work linux_queue_delayed_work |
| 53 | #define mod_delayed_work linux_mod_delayed_work |
| 54 | #define queue_work linux_queue_work |
| 55 | #define schedule_delayed_work linux_schedule_delayed_work |
| 56 | #define schedule_work linux_schedule_work |
| 57 | #define system_wq linux_system_wq |
| 58 | #define to_delayed_work linux_to_delayed_work |
| 59 | |
| 60 | struct workqueue_struct; |
| 61 | |
| 62 | struct work_struct { |
| 63 | struct work w_wk; |
| 64 | __cpu_simple_lock_t w_lock; /* XXX */ |
| 65 | enum { |
| 66 | WORK_IDLE, |
| 67 | WORK_DELAYED, |
| 68 | WORK_PENDING, |
| 69 | WORK_INVOKED, |
| 70 | WORK_CANCELLED, |
| 71 | WORK_DELAYED_CANCELLED, |
| 72 | } w_state; |
| 73 | struct workqueue_struct *w_wq; |
| 74 | void (*w_fn)(struct work_struct *); |
| 75 | }; |
| 76 | |
| 77 | struct delayed_work { |
| 78 | /* Not dw_work; name must match Linux. */ |
| 79 | struct work_struct work; |
| 80 | struct callout dw_callout; |
| 81 | TAILQ_ENTRY(delayed_work) dw_entry; |
| 82 | }; |
| 83 | |
| 84 | static inline struct delayed_work * |
| 85 | to_delayed_work(struct work_struct *work) |
| 86 | { |
| 87 | return container_of(work, struct delayed_work, work); |
| 88 | } |
| 89 | |
| 90 | extern struct workqueue_struct *system_wq; |
| 91 | |
| 92 | int linux_workqueue_init(void); |
| 93 | void linux_workqueue_fini(void); |
| 94 | |
| 95 | #define create_singlethread_workqueue(name) \ |
| 96 | alloc_ordered_workqueue((name), 0) |
| 97 | |
| 98 | struct workqueue_struct * |
| 99 | alloc_ordered_workqueue(const char *, int); |
| 100 | void destroy_workqueue(struct workqueue_struct *); |
| 101 | void flush_workqueue(struct workqueue_struct *); |
| 102 | void flush_scheduled_work(void); |
| 103 | |
| 104 | void INIT_WORK(struct work_struct *, void (*)(struct work_struct *)); |
| 105 | bool schedule_work(struct work_struct *); |
| 106 | bool queue_work(struct workqueue_struct *, struct work_struct *); |
| 107 | bool cancel_work_sync(struct work_struct *); |
| 108 | void flush_work(struct work_struct *); |
| 109 | |
| 110 | void INIT_DELAYED_WORK(struct delayed_work *, |
| 111 | void (*)(struct work_struct *)); |
| 112 | bool schedule_delayed_work(struct delayed_work *, unsigned long); |
| 113 | bool queue_delayed_work(struct workqueue_struct *, struct delayed_work *, |
| 114 | unsigned long ticks); |
| 115 | bool mod_delayed_work(struct workqueue_struct *, struct delayed_work *, |
| 116 | unsigned long ticks); |
| 117 | bool cancel_delayed_work(struct delayed_work *); |
| 118 | bool cancel_delayed_work_sync(struct delayed_work *); |
| 119 | |
| 120 | #endif /* _LINUX_WORKQUEUE_H_ */ |
| 121 | |