1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-11-01 Shell Init ver.
*/
#include "lwp_futex_internal.h"
static struct shared_futex_entry *_futex_hash_head;
rt_err_t futex_global_table_add(struct shared_futex_key *key, rt_futex_t futex)
{
rt_err_t rc = 0;
struct shared_futex_entry *entry = &futex->entry;
futex->entry.key.mobj = key->mobj;
futex->entry.key.offset = key->offset;
RT_UTHASH_ADD(_futex_hash_head, key, sizeof(struct shared_futex_key), entry);
return rc;
}
rt_err_t futex_global_table_find(struct shared_futex_key *key, rt_futex_t *futex)
{
rt_err_t rc;
rt_futex_t found_futex;
struct shared_futex_entry *entry;
RT_UTHASH_FIND(_futex_hash_head, key, sizeof(struct shared_futex_key), entry);
if (entry)
{
rc = RT_EOK;
found_futex = rt_container_of(entry, struct rt_futex, entry);
}
else
{
rc = -RT_ENOENT;
found_futex = RT_NULL;
}
*futex = found_futex;
return rc;
}
rt_err_t futex_global_table_delete(struct shared_futex_key *key)
{
rt_err_t rc;
struct shared_futex_entry *entry;
RT_UTHASH_FIND(_futex_hash_head, key, sizeof(struct shared_futex_key), entry);
if (entry)
{
RT_UTHASH_DELETE(_futex_hash_head, entry);
rc = RT_EOK;
}
else
{
rc = -RT_ENOENT;
}
return rc;
}
|
