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 /* Exit status */ 34 void *retval; 35 36 /* Pthread cancellation */ 37 uint8_t cancel_state; 38 bool cancel_pending; 39 40 /* Detach state */ 41 uint8_t detachstate; 42 43 /* Queue ID (internal-only) */ 44 uint8_t qid; 45 }; 46 47 typedef struct pthread_key_obj { 48 /* List of pthread_key_data objects that contain thread 49 * specific data for the key 50 */ 51 sys_slist_t key_data_l; 52 53 /* Optional destructor that is passed to pthread_key_create() */ 54 void (*destructor)(void *value); 55 } pthread_key_obj; 56 57 typedef struct pthread_thread_data { 58 sys_snode_t node; 59 60 /* Key and thread specific data passed to pthread_setspecific() */ 61 pthread_key_obj *key; 62 void *spec_data; 63 } pthread_thread_data; 64 is_pthread_obj_initialized(uint32_t obj)65static inline bool is_pthread_obj_initialized(uint32_t obj) 66 { 67 return (obj & PTHREAD_OBJ_MASK_INIT) != 0; 68 } 69 mark_pthread_obj_initialized(uint32_t obj)70static inline uint32_t mark_pthread_obj_initialized(uint32_t obj) 71 { 72 return obj | PTHREAD_OBJ_MASK_INIT; 73 } 74 mark_pthread_obj_uninitialized(uint32_t obj)75static inline uint32_t mark_pthread_obj_uninitialized(uint32_t obj) 76 { 77 return obj & ~PTHREAD_OBJ_MASK_INIT; 78 } 79 80 struct posix_thread *to_posix_thread(pthread_t pth); 81 82 /* get and possibly initialize a posix_mutex */ 83 struct k_mutex *to_posix_mutex(pthread_mutex_t *mu); 84 85 #endif 86
