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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/**
* @file
*
* @ingroup ClassicPart Partitions
*
* @brief RTEMS Partition Create
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/partimpl.h>
#include <rtems/rtems/attrimpl.h>
#include <rtems/rtems/support.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/score/sysstate.h>
#include <rtems/sysinit.h>
rtems_status_code rtems_partition_create(
rtems_name name,
void *starting_address,
uintptr_t length,
size_t buffer_size,
rtems_attribute attribute_set,
rtems_id *id
)
{
Partition_Control *the_partition;
if ( !rtems_is_name_valid( name ) )
return RTEMS_INVALID_NAME;
if ( !starting_address )
return RTEMS_INVALID_ADDRESS;
if ( !id )
return RTEMS_INVALID_ADDRESS;
if ( length == 0 )
return RTEMS_INVALID_SIZE;
if ( buffer_size == 0 )
return RTEMS_INVALID_SIZE;
if ( length < buffer_size )
return RTEMS_INVALID_SIZE;
if ( !_Partition_Is_buffer_size_aligned( buffer_size ) )
return RTEMS_INVALID_SIZE;
if ( buffer_size < sizeof( Chain_Node ) )
return RTEMS_INVALID_SIZE;
if ( !_Partition_Is_buffer_area_aligned( starting_address ) )
return RTEMS_INVALID_ADDRESS;
#if defined(RTEMS_MULTIPROCESSING)
if ( !_System_state_Is_multiprocessing ) {
attribute_set = _Attributes_Clear( attribute_set, RTEMS_GLOBAL );
}
#endif
the_partition = _Partition_Allocate();
if ( !the_partition ) {
_Objects_Allocator_unlock();
return RTEMS_TOO_MANY;
}
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( attribute_set ) &&
!( _Objects_MP_Allocate_and_open( &_Partition_Information, name,
the_partition->Object.id, false ) ) ) {
_Partition_Free( the_partition );
_Objects_Allocator_unlock();
return RTEMS_TOO_MANY;
}
#endif
_Partition_Initialize(
the_partition,
starting_address,
length,
buffer_size,
attribute_set
);
_Objects_Open(
&_Partition_Information,
&the_partition->Object,
(Objects_Name) name
);
*id = the_partition->Object.id;
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( attribute_set ) )
_Partition_MP_Send_process_packet(
PARTITION_MP_ANNOUNCE_CREATE,
the_partition->Object.id,
name,
0 /* Not used */
);
#endif
_Objects_Allocator_unlock();
return RTEMS_SUCCESSFUL;
}
static void _Partition_Manager_initialization( void )
{
_Objects_Initialize_information( &_Partition_Information );
}
RTEMS_SYSINIT_ITEM(
_Partition_Manager_initialization,
RTEMS_SYSINIT_CLASSIC_PARTITION,
RTEMS_SYSINIT_ORDER_MIDDLE
);
|