5  * SPDX-License-Identifier: Apache-2.0
20 /* This is non-standard (i.e. an implementation detail) */
21 #define PTHREAD_KEY_INITIALIZER (-1)
36 	return k - posix_key_pool;  in posix_key_to_offset()
39 static inline size_t to_posix_key_idx(pthread_key_t key)  in to_posix_key_idx()  argument
41 	return mark_pthread_obj_uninitialized(key);  in to_posix_key_idx()
44 static pthread_key_obj *get_posix_key(pthread_key_t key)  in get_posix_key()  argument
46 	int actually_initialized;  in get_posix_key()
47 	size_t bit = to_posix_key_idx(key);  in get_posix_key()
50 	if (!is_pthread_obj_initialized(key)) {  in get_posix_key()
51 		LOG_DBG("Key is uninitialized (%x)", key);  in get_posix_key()
57 		LOG_DBG("Key is invalid (%x)", key);  in get_posix_key()
63 		LOG_DBG("Key claims to be initialized (%x)", key);  in get_posix_key()
70 static pthread_key_obj *to_posix_key(pthread_key_t *key)  in to_posix_key()  argument
75 	if (*key != PTHREAD_KEY_INITIALIZER) {  in to_posix_key()
76 		return get_posix_key(*key);  in to_posix_key()
86 	*key = mark_pthread_obj_initialized(bit);  in to_posix_key()
96  * @brief Create a key for thread-specific data
100 int pthread_key_create(pthread_key_t *key,  in pthread_key_create()  argument
105 	*key = PTHREAD_KEY_INITIALIZER;  in pthread_key_create()
106 	new_key = to_posix_key(key);  in pthread_key_create()
111 	sys_slist_init(&(new_key->key_data_l));  in pthread_key_create()
113 	new_key->destructor = destructor;  in pthread_key_create()
114 	LOG_DBG("Initialized key %p (%x)", new_key, *key);  in pthread_key_create()
120  * @brief Delete a key for thread-specific data
124 int pthread_key_delete(pthread_key_t key)  in pthread_key_delete()  argument
127 	int ret = EINVAL;  in pthread_key_delete()
133 		key_obj = get_posix_key(key);  in pthread_key_delete()
139 		/* Delete thread-specific elements associated with the key */  in pthread_key_delete()
140 		SYS_SLIST_FOR_EACH_NODE_SAFE(&(key_obj->key_data_l), node_l, next_node_l) {  in pthread_key_delete()
143 			key_data = (struct pthread_key_data *)sys_slist_get(&(key_obj->key_data_l));  in pthread_key_delete()
147 			LOG_DBG("Freed key data %p for key %x in thread %x", key_data, key,  in pthread_key_delete()
157 		LOG_DBG("Deleted key %p (%x)", key_obj, key);  in pthread_key_delete()
164  * @brief Associate a thread-specific value with a key
168 int pthread_setspecific(pthread_key_t key, const void *value)  in pthread_setspecific()  argument
174 	int retval = 0;  in pthread_setspecific()
181 	/* Traverse the list of keys set by the thread, looking for key.  in pthread_setspecific()
182 	 * If the key is already in the list, re-assign its value.  in pthread_setspecific()
183 	 * Else add the key to the thread's list.  in pthread_setspecific()
186 		key_obj = get_posix_key(key);  in pthread_setspecific()
192 		SYS_SLIST_FOR_EACH_NODE(&(thread->key_list), node_l) {  in pthread_setspecific()
195 			if (thread_spec_data->key == key_obj) {  in pthread_setspecific()
196 				/* Key is already present so associate thread specific data */  in pthread_setspecific()
197 				thread_spec_data->spec_data = (void *)value;  in pthread_setspecific()
198 				LOG_DBG("Paired key %x to value %p for thread %x", key, value,  in pthread_setspecific()
206 			/* Key is already present, so we are done */  in pthread_setspecific()
210 		/* Key and data need to be added */  in pthread_setspecific()
214 			LOG_DBG("Failed to allocate key data for key %x", key);  in pthread_setspecific()
219 		LOG_DBG("Allocated key data %p for key %x in thread %x", key_data, key,  in pthread_setspecific()
222 		/* Associate thread specific data, initialize new key */  in pthread_setspecific()
223 		key_data->thread_data.key = key_obj;  in pthread_setspecific()
224 		key_data->thread_data.spec_data = (void *)value;  in pthread_setspecific()
226 		/* Append new thread key data to thread's key list */  in pthread_setspecific()
227 		sys_slist_append((&thread->key_list), (sys_snode_t *)(&key_data->thread_data));  in pthread_setspecific()
229 		/* Append new key data to the key object's list */  in pthread_setspecific()
230 		sys_slist_append(&(key_obj->key_data_l), (sys_snode_t *)key_data);  in pthread_setspecific()
232 		LOG_DBG("Paired key %x to value %p for thread %x", key, value, pthread_self());  in pthread_setspecific()
239  * @brief Get the thread-specific value associated with the key
243 void *pthread_getspecific(pthread_key_t key)  in pthread_getspecific()  argument
257 		key_obj = get_posix_key(key);  in pthread_getspecific()
263 		/* Traverse the list of keys set by the thread, looking for key */  in pthread_getspecific()
265 		SYS_SLIST_FOR_EACH_NODE(&(thread->key_list), node_l) {  in pthread_getspecific()
267 			if (thread_spec_data->key == key_obj) {  in pthread_getspecific()
268 				/* Key is present, so get the set thread data */  in pthread_getspecific()
269 				value = thread_spec_data->spec_data;  in pthread_getspecific()