source:
rtems/cpukit/posix/src/keyrundestructors.c
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39cefdd
Last change on this file since 39cefdd was 39cefdd, checked in by Ralf Corsepius <ralf.corsepius@…>, on 03/23/04 at 13:07:29 | |
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File size: 1.8 KB |
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1 | /* |
2 | * $Id$ |
3 | */ |
4 | |
5 | #if HAVE_CONFIG_H |
6 | #include "config.h" |
7 | #endif |
8 | |
9 | #include <errno.h> |
10 | #include <limits.h> |
11 | #include <pthread.h> |
12 | #include <string.h> |
13 | |
14 | #include <rtems/system.h> |
15 | #include <rtems/score/thread.h> |
16 | #include <rtems/score/wkspace.h> |
17 | #include <rtems/posix/key.h> |
18 | |
19 | /*PAGE |
20 | * |
21 | * _POSIX_Keys_Run_destructors |
22 | * |
23 | * 17.1.1 Thread-Specific Data Key Create, P1003.1c/Draft 10, p. 163 |
24 | * |
25 | * NOTE: This is the routine executed when a thread exits to |
26 | * run through all the keys and do the destructor action. |
27 | */ |
28 | |
29 | void _POSIX_Keys_Run_destructors( |
30 | Thread_Control *thread |
31 | ) |
32 | { |
33 | uint32_t index; |
34 | uint32_t pthread_index; |
35 | uint32_t pthread_class; |
36 | uint32_t iterations; |
37 | boolean are_all_null; |
38 | POSIX_Keys_Control *the_key; |
39 | void *value; |
40 | |
41 | pthread_index = _Objects_Get_index( thread->Object.id ); |
42 | pthread_class = _Objects_Get_class( thread->Object.id ); |
43 | |
44 | iterations = 0; |
45 | |
46 | for ( ; ; ) { |
47 | |
48 | are_all_null = TRUE; |
49 | |
50 | for ( index=1 ; index <= _POSIX_Keys_Information.maximum ; index++ ) { |
51 | |
52 | the_key = (POSIX_Keys_Control *) |
53 | _POSIX_Keys_Information.local_table[ index ]; |
54 | |
55 | if ( the_key && the_key->is_active && the_key->destructor ) { |
56 | value = the_key->Values[ pthread_class ][ pthread_index ]; |
57 | if ( value ) { |
58 | (*the_key->destructor)( value ); |
59 | if ( the_key->Values[ pthread_class ][ pthread_index ] ) |
60 | are_all_null = FALSE; |
61 | } |
62 | } |
63 | } |
64 | |
65 | if ( are_all_null == TRUE ) |
66 | return; |
67 | |
68 | iterations++; |
69 | |
70 | /* |
71 | * The standard allows one to not do this and thus go into an infinite |
72 | * loop. It seems rude to unnecessarily lock up a system. |
73 | * |
74 | * Reference: 17.1.1.2 P1003.1c/Draft 10, p. 163, line 99. |
75 | */ |
76 | |
77 | if ( iterations >= PTHREAD_DESTRUCTOR_ITERATIONS ) |
78 | return; |
79 | } |
80 | } |
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