1/*-
2 * Copyright (c) 2015 Antti Kantee.  All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
14 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#ifndef _BMK_CORE_SCHED_H_
27#define _BMK_CORE_SCHED_H_
28
29#include <bmk-core/types.h>
30
31#define BMK_TLS_EXTRA (6 * sizeof(unsigned long))
32struct bmk_tcb {
33	unsigned long btcb_sp;		/* stack pointer	*/
34	unsigned long btcb_ip;		/* program counter	*/
35
36	unsigned long btcb_tp;		/* tls pointer		*/
37	unsigned long btcb_tpsize;	/* tls area length	*/
38};
39
40struct bmk_thread;
41
42void	bmk_sched_startmain(void (*)(void *), void *) __attribute__((noreturn));
43
44void	bmk_sched_yield(void);
45
46void	bmk_sched_dumpqueue(void);
47
48struct bmk_thread *bmk_sched_create(const char *, void *, int,
49				    void (*)(void *), void *,
50				    void *, unsigned long);
51struct bmk_thread *bmk_sched_create_withtls(const char *, void *, int,
52				    void (*)(void *), void *,
53				    void *, unsigned long, void *);
54void	bmk_sched_join(struct bmk_thread *);
55void	bmk_sched_exit(void) __attribute__((__noreturn__));
56void	bmk_sched_exit_withtls(void) __attribute__((__noreturn__));
57
58void	bmk_sched_blockprepare(void);
59#define BMK_SCHED_BLOCK_INFTIME -1
60void	bmk_sched_blockprepare_timeout(bmk_time_t);
61int	bmk_sched_block(void);
62
63void	bmk_sched_wake(struct bmk_thread *);
64
65
66void	bmk_sched_suspend(struct bmk_thread *);
67void	bmk_sched_unsuspend(struct bmk_thread *);
68
69
70void	*bmk_sched_tls_alloc(void);
71void	bmk_sched_tls_free(void *);
72
73void	*bmk_sched_gettcb(void);
74
75void	bmk_cpu_sched_create(struct bmk_thread *, struct bmk_tcb *,
76			     void (*)(void *), void *,
77			     void *, unsigned long);
78
79void	bmk_sched_set_hook(void (*)(void *, void *));
80struct bmk_thread *bmk_sched_init_mainlwp(void *);
81
82extern __thread struct bmk_thread *bmk_current;
83
84int *bmk_sched_geterrno(void);
85const char 	*bmk_sched_threadname(struct bmk_thread *);
86
87void	bmk_cpu_sched_bouncer(void);
88void	bmk_cpu_sched_switch(void *, void *);
89
90void	bmk_platform_cpu_sched_settls(struct bmk_tcb *);
91void	bmk_platform_cpu_sched_initcurrent(void *, struct bmk_thread *);
92
93#endif /* _BMK_CORE_SCHED_H_ */
94