1 /* 2 * Copyright (c) 2022 Meta 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_LIB_POSIX_POSIX_INTERNAL_H_ 8 #define ZEPHYR_LIB_POSIX_POSIX_INTERNAL_H_ 9 10 #include <stdbool.h> 11 #include <stdint.h> 12 13 #include <zephyr/kernel.h> 14 #include <zephyr/posix/pthread.h> 15 #include <zephyr/sys/dlist.h> 16 #include <zephyr/sys/slist.h> 17 18 /* 19 * Bit used to mark a pthread object as initialized. Initialization status is 20 * verified (against internal status) in lock / unlock / destroy functions. 21 */ 22 #define PTHREAD_OBJ_MASK_INIT 0x80000000 23 24 struct posix_thread { 25 struct k_thread thread; 26 27 /* List node for ready_q, run_q, or done_q */ 28 sys_dnode_t q_node; 29 30 /* List of keys that thread has called pthread_setspecific() on */ 31 sys_slist_t key_list; 32 33 /* Dynamic stack */ 34 k_thread_stack_t *dynamic_stack; 35 36 /* Exit status */ 37 void *retval; 38 39 /* Pthread cancellation */ 40 uint8_t cancel_state; 41 bool cancel_pending; 42 43 /* Detach state */ 44 uint8_t detachstate; 45 46 /* Queue ID (internal-only) */ 47 uint8_t qid; 48 }; 49 50 typedef struct pthread_key_obj { 51 /* List of pthread_key_data objects that contain thread 52 * specific data for the key 53 */ 54 sys_slist_t key_data_l; 55 56 /* Optional destructor that is passed to pthread_key_create() */ 57 void (*destructor)(void *value); 58 } pthread_key_obj; 59 60 typedef struct pthread_thread_data { 61 sys_snode_t node; 62 63 /* Key and thread specific data passed to pthread_setspecific() */ 64 pthread_key_obj *key; 65 void *spec_data; 66 } pthread_thread_data; 67 is_pthread_obj_initialized(uint32_t obj)68static inline bool is_pthread_obj_initialized(uint32_t obj) 69 { 70 return (obj & PTHREAD_OBJ_MASK_INIT) != 0; 71 } 72 mark_pthread_obj_initialized(uint32_t obj)73static inline uint32_t mark_pthread_obj_initialized(uint32_t obj) 74 { 75 return obj | PTHREAD_OBJ_MASK_INIT; 76 } 77 mark_pthread_obj_uninitialized(uint32_t obj)78static inline uint32_t mark_pthread_obj_uninitialized(uint32_t obj) 79 { 80 return obj & ~PTHREAD_OBJ_MASK_INIT; 81 } 82 83 struct posix_thread *to_posix_thread(pthread_t pth); 84 85 /* get and possibly initialize a posix_mutex */ 86 struct k_mutex *to_posix_mutex(pthread_mutex_t *mu); 87 88 #endif 89
