[63edcf24] | 1 | /* |
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| 2 | * $Id$ |
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| 3 | */ |
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| 4 | |
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| 5 | #include <errno.h> |
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| 6 | #include <limits.h> |
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| 7 | #include <pthread.h> |
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| 8 | #include <string.h> |
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| 9 | |
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| 10 | #include <rtems/system.h> |
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| 11 | #include <rtems/score/thread.h> |
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| 12 | #include <rtems/score/wkspace.h> |
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| 13 | #include <rtems/posix/key.h> |
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| 14 | |
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| 15 | /*PAGE |
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| 16 | * |
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| 17 | * 17.1.1 Thread-Specific Data Key Create, P1003.1c/Draft 10, p. 163 |
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| 18 | */ |
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| 19 | |
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| 20 | int pthread_key_create( |
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| 21 | pthread_key_t *key, |
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| 22 | void (*destructor)( void * ) |
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| 23 | ) |
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| 24 | { |
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| 25 | POSIX_Keys_Control *the_key; |
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| 26 | void *table; |
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| 27 | unsigned32 the_class; |
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| 28 | unsigned32 bytes_to_allocate; |
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| 29 | |
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| 30 | |
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| 31 | _Thread_Disable_dispatch(); |
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| 32 | |
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| 33 | the_key = _POSIX_Keys_Allocate(); |
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| 34 | |
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| 35 | if ( !the_key ) { |
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| 36 | _Thread_Enable_dispatch(); |
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| 37 | return EAGAIN; |
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| 38 | } |
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| 39 | |
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| 40 | the_key->destructor = destructor; |
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| 41 | |
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| 42 | for ( the_class = OBJECTS_CLASSES_FIRST_THREAD_CLASS; |
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| 43 | the_class <= OBJECTS_CLASSES_LAST_THREAD_CLASS; |
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| 44 | the_class++ ) { |
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| 45 | |
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| 46 | bytes_to_allocate = |
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| 47 | (_Objects_Information_table[ the_class ]->maximum + 1) * sizeof( void * ); |
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| 48 | |
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| 49 | table = _Workspace_Allocate( bytes_to_allocate ); |
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| 50 | |
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| 51 | if ( !table ) { |
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| 52 | for ( --the_class; |
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| 53 | the_class >= OBJECTS_CLASSES_FIRST_THREAD_CLASS; |
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| 54 | the_class-- ) |
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| 55 | _Workspace_Free( the_key->Values[ the_class ] ); |
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| 56 | |
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| 57 | _POSIX_Keys_Free( the_key ); |
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| 58 | _Thread_Enable_dispatch(); |
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| 59 | return ENOMEM; |
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| 60 | } |
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| 61 | |
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| 62 | the_key->Values[ the_class ] = table; |
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| 63 | memset( table, '\0', bytes_to_allocate ); |
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| 64 | } |
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| 65 | |
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| 66 | the_key->is_active = TRUE; |
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| 67 | |
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| 68 | _Objects_Open( &_POSIX_Keys_Information, &the_key->Object, 0 ); |
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| 69 | |
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| 70 | *key = the_key->Object.id; |
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| 71 | |
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| 72 | _Thread_Enable_dispatch(); |
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| 73 | |
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| 74 | return 0; |
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| 75 | } |
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