workqueue.h revision 1.23
1 /* $NetBSD: workqueue.h,v 1.23 2021/12/19 11:10:17 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013, 2018 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/queue.h> 36 #include <sys/stdbool.h> 37 38 #include <linux/kernel.h> /* container_of */ 39 #include <linux/stringify.h> 40 41 #define INIT_DELAYED_WORK linux_INIT_DELAYED_WORK 42 #define INIT_WORK linux_INIT_WORK 43 #define alloc_workqueue linux_alloc_workqueue 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 current_work linux_current_work 50 #define delayed_work_pending linux_delayed_work_pending 51 #define destroy_workqueue linux_destroy_workqueue 52 #define drain_workqueue linux_drain_workqueue 53 #define flush_delayed_work linux_flush_delayed_work 54 #define flush_scheduled_work linux_flush_scheduled_work 55 #define flush_work linux_flush_work 56 #define flush_workqueue linux_flush_workqueue 57 #define queue_delayed_work linux_queue_delayed_work 58 #define mod_delayed_work linux_mod_delayed_work 59 #define queue_work linux_queue_work 60 #define schedule_delayed_work linux_schedule_delayed_work 61 #define schedule_work linux_schedule_work 62 #define system_long_wq linux_system_long_wq 63 #define system_power_efficient_wq linux_system_power_efficient_wq 64 #define system_unbound_wq linux_system_unbound_wq 65 #define system_wq linux_system_wq 66 #define to_delayed_work linux_to_delayed_work 67 #define work_pending linux_work_pending 68 69 struct workqueue_struct; 70 71 struct work_struct { 72 volatile uintptr_t work_owner; 73 TAILQ_ENTRY(work_struct) work_entry; 74 void (*func)(struct work_struct *); /* Linux API name */ 75 }; 76 77 struct delayed_work { 78 struct work_struct work; /* Linux API name */ 79 struct callout dw_callout; 80 TAILQ_ENTRY(delayed_work) dw_entry; 81 int dw_resched; 82 enum { 83 DELAYED_WORK_IDLE, 84 DELAYED_WORK_SCHEDULED, 85 DELAYED_WORK_RESCHEDULED, 86 DELAYED_WORK_CANCELLED, 87 } dw_state; 88 }; 89 90 struct rcu_work { 91 }; 92 93 #define WQ_FREEZABLE __BIT(0) 94 #define WQ_HIGHPRI __BIT(1) 95 #define WQ_MEM_RECLAIM __BIT(2) 96 #define WQ_UNBOUND __BIT(3) 97 98 static inline struct delayed_work * 99 to_delayed_work(struct work_struct *work) 100 { 101 return container_of(work, struct delayed_work, work); 102 } 103 104 extern struct workqueue_struct *system_wq; 105 extern struct workqueue_struct *system_long_wq; 106 extern struct workqueue_struct *system_power_efficient_wq; 107 extern struct workqueue_struct *system_unbound_wq; 108 109 int linux_workqueue_init(void); 110 void linux_workqueue_fini(void); 111 112 #define create_singlethread_workqueue(name) \ 113 alloc_ordered_workqueue((name), 0) 114 115 struct workqueue_struct * 116 alloc_workqueue(const char *, int, unsigned); 117 struct workqueue_struct * 118 alloc_ordered_workqueue(const char *, int); 119 void destroy_workqueue(struct workqueue_struct *); 120 void flush_workqueue(struct workqueue_struct *); 121 void drain_workqueue(struct workqueue_struct *); 122 void flush_scheduled_work(void); 123 124 void INIT_WORK(struct work_struct *, void (*)(struct work_struct *)); 125 bool schedule_work(struct work_struct *); 126 bool queue_work(struct workqueue_struct *, struct work_struct *); 127 bool cancel_work(struct work_struct *); 128 bool cancel_work_sync(struct work_struct *); 129 bool flush_work(struct work_struct *); 130 bool work_pending(const struct work_struct *); 131 132 void INIT_DELAYED_WORK(struct delayed_work *, 133 void (*)(struct work_struct *)); 134 bool schedule_delayed_work(struct delayed_work *, unsigned long); 135 bool queue_delayed_work(struct workqueue_struct *, struct delayed_work *, 136 unsigned long ticks); 137 bool mod_delayed_work(struct workqueue_struct *, struct delayed_work *, 138 unsigned long ticks); 139 bool cancel_delayed_work(struct delayed_work *); 140 bool cancel_delayed_work_sync(struct delayed_work *); 141 bool flush_delayed_work(struct delayed_work *); 142 bool delayed_work_pending(const struct delayed_work *); 143 144 struct work_struct * 145 current_work(void); 146 147 #define INIT_WORK_ONSTACK INIT_WORK 148 #define INIT_DELAYED_WORK_ONSTACK INIT_DELAYED_WORK 149 #define destroy_delayed_work_on_stack(dw) __nothing 150 151 static inline void 152 destroy_work_on_stack(struct work_struct *work) 153 { 154 } 155 156 #endif /* _LINUX_WORKQUEUE_H_ */ 157
Indexes created Tue Sep 23 14:10:03 GMT 2025