1 #define __PTHREAD_EXTRA_INTERNAL
5 #include <pthread_extra.h>
7 //Static array with user data for all thread handles
8 //TODO: perhaps use something more sophisticated like linked list?
9 pthread_user_data_internal_t pthread_user_data
[PTHREAD_XTHREADS_MAX
+1] = {{.tid
=PTHREAD_XNULL
}};
11 //Get pointer to internal record tied to specified thread
12 pthread_user_data_internal_t
* pthread_user_data_internal(pthread_t thread
) {
13 //Return NULL if requested thread handle is NULL
14 if(pthread_equal(thread
, PTHREAD_XNULL
)) return NULL
;
16 //Find if the thread is already registered, add it if not
17 //FIXME: recycle slots of destroyed threads!!!
19 for(i
= 0; i
<PTHREAD_XTHREADS_MAX
; i
++) {
20 if(pthread_equal(pthread_user_data
[i
].tid
, PTHREAD_XNULL
)) {
21 //FIXME: Should be locking for addition to the array!!!!
22 pthread_user_data
[i
+1].tid
= PTHREAD_XNULL
;
23 pthread_user_data
[i
].tid
= thread
;
26 if(pthread_equal(pthread_user_data
[i
].tid
, thread
)) break;
29 return &pthread_user_data
[i
];
32 //Get pointer to user specified pointer of that thread
33 void** pthread_user_data_ptr(pthread_t thread
) {
34 return &pthread_user_data_internal(thread
)->usr
;
37 //Set user specified pointer for thread
38 void pthread_user_data_set(pthread_t thread
, void *usr
) {
39 *(pthread_user_data_ptr(thread
)) = usr
;
42 //Get user specified pointer for thread
43 void* pthread_user_data_get(pthread_t thread
) {
44 return *(pthread_user_data_ptr(thread
));
47 //Remove canceled thread from user data registry
48 int pthread_user_data_remove(pthread_t thread
) {
49 //FIXME: not implemented yet!
54 //User data cleanup handler to be registered with pthread_cleanup_push()
55 void pthread_user_data_cleanup( void * arg
) {
56 pthread_t t
= (pthread_t
)arg
;
57 assert(pthread_equal(t
, pthread_self()) && "Pthread_self() is not working in cleanup context!");
58 pthread_user_data_remove(t
);