5
Last change
on this file since ba74ebde was
ba74ebde,
checked in by Sebastian Huber <sebastian.huber@…>, on 02/14/20 at 18:09:56
|
libio: Add POSIX user environment pointer to TCB
The IO library used a POSIX key to store an optional POSIX user
environment pointer. This pulled in the POSIX keys support in every
application configuration. Add a user environment pointer to the thread
control block (TCB) instead. Applications which do not need the POSIX
user environment will just get an overhead of one pointer per thread.
Close #3882.
|
-
Property mode set to
100644
|
File size:
1.4 KB
|
Line | |
---|
1 | /** |
---|
2 | * @file |
---|
3 | * |
---|
4 | * @brief RTEMS LibIO Initialization |
---|
5 | * @ingroup LibIO |
---|
6 | */ |
---|
7 | |
---|
8 | /* |
---|
9 | * COPYRIGHT (c) 1989-2010. |
---|
10 | * On-Line Applications Research Corporation (OAR). |
---|
11 | * |
---|
12 | * The license and distribution terms for this file may be |
---|
13 | * found in the file LICENSE in this distribution or at |
---|
14 | * http://www.rtems.org/license/LICENSE. |
---|
15 | */ |
---|
16 | |
---|
17 | #if HAVE_CONFIG_H |
---|
18 | #include "config.h" |
---|
19 | #endif |
---|
20 | |
---|
21 | #include <rtems/libio_.h> |
---|
22 | |
---|
23 | #include <pthread.h> |
---|
24 | |
---|
25 | #include <rtems/sysinit.h> |
---|
26 | #include <rtems/score/apimutex.h> |
---|
27 | |
---|
28 | /* |
---|
29 | * File descriptor Table Information |
---|
30 | */ |
---|
31 | |
---|
32 | static API_Mutex_Control rtems_libio_mutex = API_MUTEX_INITIALIZER( "_Libio" ); |
---|
33 | |
---|
34 | void rtems_libio_lock( void ) |
---|
35 | { |
---|
36 | _API_Mutex_Lock( &rtems_libio_mutex ); |
---|
37 | } |
---|
38 | |
---|
39 | void rtems_libio_unlock( void ) |
---|
40 | { |
---|
41 | _API_Mutex_Unlock( &rtems_libio_mutex ); |
---|
42 | } |
---|
43 | |
---|
44 | void *rtems_libio_iop_free_head; |
---|
45 | |
---|
46 | void **rtems_libio_iop_free_tail = &rtems_libio_iop_free_head; |
---|
47 | |
---|
48 | static void rtems_libio_init( void ) |
---|
49 | { |
---|
50 | uint32_t i; |
---|
51 | rtems_libio_t *iop; |
---|
52 | |
---|
53 | if (rtems_libio_number_iops > 0) |
---|
54 | { |
---|
55 | iop = rtems_libio_iop_free_head = &rtems_libio_iops[0]; |
---|
56 | for (i = 0 ; (i + 1) < rtems_libio_number_iops ; i++, iop++) |
---|
57 | iop->data1 = iop + 1; |
---|
58 | iop->data1 = NULL; |
---|
59 | rtems_libio_iop_free_tail = &iop->data1; |
---|
60 | } |
---|
61 | } |
---|
62 | |
---|
63 | RTEMS_SYSINIT_ITEM( |
---|
64 | rtems_libio_init, |
---|
65 | RTEMS_SYSINIT_LIBIO, |
---|
66 | RTEMS_SYSINIT_ORDER_MIDDLE |
---|
67 | ); |
---|
68 | |
---|
69 | RTEMS_SYSINIT_ITEM( |
---|
70 | rtems_libio_post_driver, |
---|
71 | RTEMS_SYSINIT_STD_FILE_DESCRIPTORS, |
---|
72 | RTEMS_SYSINIT_ORDER_MIDDLE |
---|
73 | ); |
---|
Note: See
TracBrowser
for help on using the repository browser.