2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2000 Doug Rabson
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/queue.h>
35 * Each task includes a function which is called from
36 * taskqueue_run(). The first argument is taken from the 'ta_context'
37 * field of struct task and the second argument is a count of how many
38 * times the task was enqueued before the call to taskqueue_run().
41 * (c) const after init
44 typedef void task_fn_t(void *context, int pending);
47 STAILQ_ENTRY(task) ta_link; /* (q) link for queue */
48 uint16_t ta_pending; /* (q) count times queued */
49 uint8_t ta_priority; /* (c) Priority */
50 uint8_t ta_flags; /* (c) Flags */
51 task_fn_t *ta_func; /* (c) task handler */
52 void *ta_context; /* (c) argument for handler */
55 #define TASK_ENQUEUED 0x1
56 #define TASK_NOENQUEUE 0x2
57 #define TASK_NETWORK 0x4
59 #define TASK_IS_NET(ta) ((ta)->ta_flags & TASK_NETWORK)
63 typedef void gtask_fn_t(void *context);
66 STAILQ_ENTRY(gtask) ta_link; /* (q) link for queue */
67 uint16_t ta_flags; /* (q) state flags */
68 u_short ta_priority; /* (c) Priority */
69 gtask_fn_t *ta_func; /* (c) task handler */
70 void *ta_context; /* (c) argument for handler */
75 #endif /* !_SYS__TASK_H_ */