From e2abcdca396661cbe0ae2ddb13d5c2b85682c13a Mon Sep 17 00:00:00 2001 From: Cem Keylan Date: Fri, 16 Oct 2020 17:41:25 +0300 Subject: initial commit --- sys/sys/task.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 sys/sys/task.h (limited to 'sys/sys/task.h') diff --git a/sys/sys/task.h b/sys/sys/task.h new file mode 100644 index 0000000..222c2a7 --- /dev/null +++ b/sys/sys/task.h @@ -0,0 +1,60 @@ +/* $OpenBSD: task.h,v 1.16 2019/06/23 12:56:10 kettenis Exp $ */ + +/* + * Copyright (c) 2013 David Gwynne + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _SYS_TASK_H_ +#define _SYS_TASK_H_ + +#include + +struct taskq; + +struct task { + TAILQ_ENTRY(task) t_entry; + void (*t_func)(void *); + void *t_arg; + unsigned int t_flags; +}; + +#define TASK_ONQUEUE 1 +#define TASK_BARRIER 2 + +TAILQ_HEAD(task_list, task); + +#define TASKQ_MPSAFE (1 << 0) + +#define TASK_INITIALIZER(_f, _a) {{ NULL, NULL }, (_f), (_a), 0 } + +#ifdef _KERNEL +extern struct taskq *const systq; +extern struct taskq *const systqmp; + +struct taskq *taskq_create(const char *, unsigned int, int, unsigned int); +void taskq_destroy(struct taskq *); +void taskq_barrier(struct taskq *); + +void taskq_del_barrier(struct taskq *, struct task *); + +void task_set(struct task *, void (*)(void *), void *); +int task_add(struct taskq *, struct task *); +int task_del(struct taskq *, struct task *); + +#define task_pending(_t) ((_t)->t_flags & TASK_ONQUEUE) + +#endif /* _KERNEL */ + +#endif /* _SYS_TASK_H_ */ -- cgit v1.2.3