| 1 | #ifndef __PTHREAD_EXTRA_H__ |
| 2 | #define __PTHREAD_EXTRA_H__ |
| 3 | |
| 4 | #include <pthread.h> |
| 5 | #include <time.h> |
| 6 | #include <stdbool.h> |
| 7 | #include <stdint.h> |
| 8 | |
| 9 | #define PTHREAD_XTIME_NOBLOCK (&(struct timespec){ .tv_sec = 0, .tv_nsec = 0 }) |
| 10 | #define PTHREAD_XTIME_FOREVER NULL |
| 11 | |
| 12 | // Message queues |
| 13 | |
| 14 | #define PTHREAD_XMQ_FRONT true |
| 15 | #define PTHREAD_XMQ_BACK false |
| 16 | |
| 17 | #define PTHREAD_XMQ_RECV false |
| 18 | #define PTHREAD_XMQ_PEEK true |
| 19 | |
| 20 | typedef struct pthread_mq_t { |
| 21 | pthread_mutex_t lock; |
| 22 | pthread_cond_t cond_readable; |
| 23 | pthread_cond_t cond_writable; |
| 24 | uint8_t * data; |
| 25 | size_t msg_size; |
| 26 | size_t msg_count; |
| 27 | size_t msg_count_max; |
| 28 | size_t head_idx; |
| 29 | char * name; |
| 30 | } pthread_mq_t; |
| 31 | |
| 32 | bool pthread_mq_init(pthread_mq_t *mq, size_t msg_size, size_t msg_count_max); |
| 33 | void pthread_mq_free(pthread_mq_t *mq); |
| 34 | size_t pthread_mq_waiting(pthread_mq_t *mq); |
| 35 | bool pthread_mq_reset(pthread_mq_t *mq); |
| 36 | bool pthread_mq_send_generic(pthread_mq_t *mq, void * data, bool to_front, const struct timespec *restrict abs_timeout); |
| 37 | bool pthread_mq_receive_generic(pthread_mq_t *mq, void * data, bool peek, const struct timespec *restrict abs_timeout); |
| 38 | |
| 39 | // Multi mutex locking |
| 40 | |
| 41 | #define pthread_mutex_swap(a, b) { pthread_mutex_t *s; s = (a); a = (b); b = s; } |
| 42 | |
| 43 | #define pthread_mutex_lock_two(a,b) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, true, NULL) |
| 44 | #define pthread_mutex_timedlock_two(a,b,tm) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, true, (tm)) |
| 45 | #define pthread_mutex_trylock_two(a,b) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, false, NULL) |
| 46 | |
| 47 | #define pthread_mutex_lock_multi(lcks,cnt) pthread_mutex_timedlock_multi_generic((lcks),(cnt),true,NULL) |
| 48 | #define pthread_mutex_timedlock_multi(lcks,cnt,tm) pthread_mutex_timedlock_multi_generic((lcks),(cnt),true,(tm)) |
| 49 | #define pthread_mutex_trylock_multi(lcks,cnt) pthread_mutex_timedlock_multi_generic((lcks),(cnt),false,NULL) |
| 50 | |
| 51 | int pthread_mutex_timedlock_multi_generic(pthread_mutex_t **lck, int cnt, bool block, const struct timespec *restrict abs_timeout); |
| 52 | |
| 53 | |
| 54 | #endif //__PTHREAD_EXTRA_H__ |