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1 | /* |
1 | /* |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
2 | * Copyright (c) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup time |
29 | /** @addtogroup time |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_TIMEOUT_H_ |
35 | #ifndef KERN_TIMEOUT_H_ |
36 | #define KERN_TIMEOUT_H_ |
36 | #define KERN_TIMEOUT_H_ |
37 | 37 | ||
38 | #include <arch/types.h> |
38 | #include <arch/types.h> |
39 | #if defined CONFIG_TIMEOUT_AVL_TREE |
39 | #if defined CONFIG_TIMEOUT_AVL_TREE |
40 | #include <adt/avl.h> |
40 | #include <adt/avl.h> |
- | 41 | #elif defined CONFIG_TIMEOUT_FAVL_TREE |
|
- | 42 | #include <adt/favl.h> |
|
41 | #elif defined CONFIG_TIMEOUT_EXTAVL_TREE |
43 | #elif defined CONFIG_TIMEOUT_EXTAVL_TREE |
42 | #include <adt/extavl.h> |
44 | #include <adt/extavl.h> |
43 | #elif defined CONFIG_TIMEOUT_EXTAVLREL_TREE |
45 | #elif defined CONFIG_TIMEOUT_EXTAVLREL_TREE |
44 | #include <adt/extavlrel.h> |
46 | #include <adt/extavlrel.h> |
45 | #else |
47 | #else |
46 | #include <adt/list.h> |
48 | #include <adt/list.h> |
47 | #endif |
49 | #endif |
48 | #include <cpu.h> |
50 | #include <cpu.h> |
49 | 51 | ||
50 | typedef void (* timeout_handler_t)(void *arg); |
52 | typedef void (* timeout_handler_t)(void *arg); |
51 | 53 | ||
52 | 54 | ||
53 | #if defined CONFIG_TIMEOUT_AVL_TREE |
- | |
54 | - | ||
55 | typedef struct { |
55 | typedef struct { |
56 | SPINLOCK_DECLARE(lock); |
56 | SPINLOCK_DECLARE(lock); |
57 | 57 | ||
58 | /** |
- | |
59 | * AVL tree node structure holds information |
58 | #if defined CONFIG_TIMEOUT_AVL_TREE |
60 | * about connections with other timeouts. |
59 | /** Avl tree holding information about connections with other timeouts. |
61 | */ |
60 | * Experimental use only. */ |
62 | avltree_node_t node; |
61 | avltree_node_t node; |
63 | /** Function that will be called on timeout activation. */ |
- | |
64 | timeout_handler_t handler; |
62 | #elif defined CONFIG_TIMEOUT_FAVL_TREE |
65 | /** Argument to be passed to handler() function. */ |
63 | /** Fast Avl tree holding information about connections with other timeouts. |
66 | void *arg; |
- | |
67 | /** On which processor is this timeout registered. */ |
64 | * Use this structure instead of Avl tree. */ |
68 | cpu_t *cpu; |
- | |
69 | } timeout_t; |
65 | favltree_node_t node; |
70 | - | ||
71 | #elif defined CONFIG_TIMEOUT_EXTAVL_TREE |
66 | #elif defined CONFIG_TIMEOUT_EXTAVL_TREE |
72 | - | ||
73 | typedef struct { |
- | |
74 | SPINLOCK_DECLARE(lock); |
- | |
75 | - | ||
76 | /** |
- | |
77 | * Extended AVL tree node structure holds information |
- | |
78 | * about connections with other timeouts. |
67 | /** Extended Avl tree holding information about connections with other timeouts. */ |
79 | */ |
- | |
80 | extavltree_node_t node; |
68 | extavltree_node_t node; |
81 | /** Function that will be called on timeout activation. */ |
- | |
82 | timeout_handler_t handler; |
- | |
83 | /** Argument to be passed to handler() function. */ |
- | |
84 | void *arg; |
- | |
85 | /** On which processor is this timeout registered. */ |
- | |
86 | cpu_t *cpu; |
- | |
87 | } timeout_t; |
- | |
88 | - | ||
89 | #elif defined CONFIG_TIMEOUT_EXTAVLREL_TREE |
69 | #elif defined CONFIG_TIMEOUT_EXTAVLREL_TREE |
90 | - | ||
91 | typedef struct { |
- | |
92 | SPINLOCK_DECLARE(lock); |
- | |
93 | - | ||
94 | /** |
- | |
95 | * Extended AVL tree with relative keys node structure holds information |
70 | /** Extended Avl tree with relative keys holding information about connections |
96 | * about connections with other timeouts. |
71 | * with other timeouts. */ |
97 | */ |
- | |
98 | extavlreltree_node_t node; |
72 | extavlreltree_node_t node; |
99 | /** Function that will be called on timeout activation. */ |
- | |
100 | timeout_handler_t handler; |
- | |
101 | /** Argument to be passed to handler() function. */ |
- | |
102 | void *arg; |
- | |
103 | /** On which processor is this timeout registered. */ |
- | |
104 | cpu_t *cpu; |
- | |
105 | } timeout_t; |
- | |
106 | - | ||
107 | #else |
73 | #else |
108 | - | ||
109 | typedef struct { |
- | |
110 | SPINLOCK_DECLARE(lock); |
- | |
111 | - | ||
112 | /** Link to the list of active timeouts on THE->cpu */ |
74 | /** Link to the list of active timeouts on THE->cpu */ |
113 | link_t link; |
75 | link_t link; |
114 | /** Timeout will be activated in this amount of clock() ticks. */ |
76 | /** Timeout will be activated in this amount of clock() ticks. */ |
115 | uint64_t ticks; |
77 | uint64_t ticks; |
- | 78 | #endif |
|
- | 79 | ||
116 | /** Function that will be called on timeout activation. */ |
80 | /** Function that will be called on timeout activation. */ |
117 | timeout_handler_t handler; |
81 | timeout_handler_t handler; |
118 | /** Argument to be passed to handler() function. */ |
82 | /** Argument to be passed to handler() function. */ |
119 | void *arg; |
83 | void *arg; |
120 | /** On which processor is this timeout registered. */ |
84 | /** On which processor is this timeout registered. */ |
121 | cpu_t *cpu; |
85 | cpu_t *cpu; |
122 | } timeout_t; |
86 | } timeout_t; |
123 | 87 | ||
124 | #endif |
- | |
125 | - | ||
126 | #define us2ticks(us) ((uint64_t) (((uint32_t) (us) / (1000000 / HZ)))) |
88 | #define us2ticks(us) ((uint64_t) (((uint32_t) (us) / (1000000 / HZ)))) |
127 | 89 | ||
128 | extern void timeout_init(void); |
90 | extern void timeout_init(void); |
129 | extern void timeout_initialize(timeout_t *t); |
91 | extern void timeout_initialize(timeout_t *t); |
130 | extern void timeout_reinitialize(timeout_t *t); |
92 | extern void timeout_reinitialize(timeout_t *t); |
131 | extern void timeout_register(timeout_t *t, uint64_t usec, timeout_handler_t f, |
93 | extern void timeout_register(timeout_t *t, uint64_t usec, timeout_handler_t f, |
132 | void *arg); |
94 | void *arg); |
133 | extern bool timeout_unregister(timeout_t *t); |
95 | extern bool timeout_unregister(timeout_t *t); |
134 | 96 | ||
135 | #endif |
97 | #endif |
136 | 98 | ||
137 | /** @} |
99 | /** @} |
138 | */ |
100 | */ |
139 | 101 |