blob: bcb881e756bc37d4415156ca0b702e984323347f (
plain) (
blame)
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <limits.h>
#include <pthread.h>
#include <string.h>
#include <rtems/system.h>
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#include <rtems/posix/key.h>
/*PAGE
*
* 17.1.1 Thread-Specific Data Key Create, P1003.1c/Draft 10, p. 163
*/
int pthread_key_create(
pthread_key_t *key,
void (*destructor)( void * )
)
{
POSIX_Keys_Control *the_key;
void *table;
unsigned32 the_api;
unsigned32 bytes_to_allocate;
_Thread_Disable_dispatch();
the_key = _POSIX_Keys_Allocate();
if ( !the_key ) {
_Thread_Enable_dispatch();
return EAGAIN;
}
the_key->destructor = destructor;
/*
* This is a bit more complex than one might initially expect because
* APIs are optional. Thus there may be no ITRON tasks to have keys
* for. [NOTE: Currently RTEMS Classic API tasks are not always enabled.]
*/
for ( the_api = 1;
the_api <= OBJECTS_APIS_LAST;
the_api++ ) {
if ( _Objects_Information_table[ the_api ] &&
_Objects_Information_table[ the_api ][ 1 ] ) {
bytes_to_allocate = sizeof( void * ) *
(_Objects_Information_table[ the_api ][ 1 ]->maximum + 1);
table = _Workspace_Allocate( bytes_to_allocate );
if ( !table ) {
for ( --the_api;
the_api >= 1;
the_api-- )
_Workspace_Free( the_key->Values[ the_api ] );
_POSIX_Keys_Free( the_key );
_Thread_Enable_dispatch();
return ENOMEM;
}
the_key->Values[ the_api ] = table;
memset( table, '\0', bytes_to_allocate );
} else {
the_key->Values[ the_api ] = NULL;
}
}
the_key->is_active = TRUE;
_Objects_Open( &_POSIX_Keys_Information, &the_key->Object, 0 );
*key = the_key->Object.id;
_Thread_Enable_dispatch();
return 0;
}
|