diff options
Diffstat (limited to 'c/src/exec/posix/src/keycreate.c')
-rw-r--r-- | c/src/exec/posix/src/keycreate.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/c/src/exec/posix/src/keycreate.c b/c/src/exec/posix/src/keycreate.c new file mode 100644 index 0000000000..da6b4d40af --- /dev/null +++ b/c/src/exec/posix/src/keycreate.c @@ -0,0 +1,75 @@ +/* + * $Id$ + */ + +#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_class; + unsigned32 bytes_to_allocate; + + + _Thread_Disable_dispatch(); + + the_key = _POSIX_Keys_Allocate(); + + if ( !the_key ) { + _Thread_Enable_dispatch(); + return EAGAIN; + } + + the_key->destructor = destructor; + + for ( the_class = OBJECTS_CLASSES_FIRST_THREAD_CLASS; + the_class <= OBJECTS_CLASSES_LAST_THREAD_CLASS; + the_class++ ) { + + bytes_to_allocate = + (_Objects_Information_table[ the_class ]->maximum + 1) * sizeof( void * ); + + table = _Workspace_Allocate( bytes_to_allocate ); + + if ( !table ) { + for ( --the_class; + the_class >= OBJECTS_CLASSES_FIRST_THREAD_CLASS; + the_class-- ) + _Workspace_Free( the_key->Values[ the_class ] ); + + _POSIX_Keys_Free( the_key ); + _Thread_Enable_dispatch(); + return ENOMEM; + } + + the_key->Values[ the_class ] = table; + memset( table, '\0', bytes_to_allocate ); + } + + the_key->is_active = TRUE; + + _Objects_Open( &_POSIX_Keys_Information, &the_key->Object, 0 ); + + *key = the_key->Object.id; + + _Thread_Enable_dispatch(); + + return 0; +} |