| 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 | #include <signal.h> |
| 9 | |
| 10 | #define PTHREAD_XTIME_NOBLOCK (&(struct timespec){ .tv_sec = 0, .tv_nsec = 0 }) |
| 11 | #define PTHREAD_XTIME_FOREVER NULL |
| 12 | |
| 13 | //Pausing |
| 14 | |
| 15 | #define PTHREAD_XSIG_STOP (SIGRTMIN+0) |
| 16 | #define PTHREAD_XSIG_CONT (SIGRTMIN+1) |
| 17 | #define PTHREAD_XSIGRTMIN (SIGRTMIN+2) //First unused RT signal |
| 18 | |
| 19 | #define pthread_pause(t) (pthread_kill((t), PTHREAD_XSIG_STOP)); |
| 20 | #define pthread_unpause(t) (pthread_kill((t), PTHREAD_XSIG_CONT)); |
| 21 | |
| 22 | void pthread_unpause_handler(); |
| 23 | void pthread_pause_handler(); |
| 24 | void pthread_pause_enable(); |
| 25 | |
| 26 | // Message queues |
| 27 | |
| 28 | #define PTHREAD_XMQ_FRONT true |
| 29 | #define PTHREAD_XMQ_BACK false |
| 30 | |
| 31 | #define PTHREAD_XMQ_RECV false |
| 32 | #define PTHREAD_XMQ_PEEK true |
| 33 | |
| 34 | typedef struct pthread_mq_t { |
| 35 | pthread_mutex_t lock; |
| 36 | pthread_cond_t cond_readable; |
| 37 | pthread_cond_t cond_writable; |
| 38 | uint8_t * data; |
| 39 | size_t msg_size; |
| 40 | size_t msg_count; |
| 41 | size_t msg_count_max; |
| 42 | size_t head_idx; |
| 43 | char * name; |
| 44 | } pthread_mq_t; |
| 45 | |
| 46 | bool pthread_mq_init(pthread_mq_t *mq, size_t msg_size, size_t msg_count_max); |
| 47 | void pthread_mq_free(pthread_mq_t *mq); |
| 48 | size_t pthread_mq_waiting(pthread_mq_t *mq); |
| 49 | bool pthread_mq_reset(pthread_mq_t *mq); |
| 50 | bool pthread_mq_send_generic(pthread_mq_t *mq, void * data, bool to_front, const struct timespec *restrict abs_timeout); |
| 51 | bool pthread_mq_receive_generic(pthread_mq_t *mq, void * data, bool peek, const struct timespec *restrict abs_timeout); |
| 52 | |
| 53 | // Multi mutex locking |
| 54 | |
| 55 | #define pthread_mutex_swap(a, b) { pthread_mutex_t *s; s = (a); a = (b); b = s; } |
| 56 | |
| 57 | #define pthread_mutex_lock_two(a,b) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, true, NULL) |
| 58 | #define pthread_mutex_timedlock_two(a,b,tm) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, true, (tm)) |
| 59 | #define pthread_mutex_trylock_two(a,b) pthread_mutex_timedlock_multi_generic((pthread_mutex_t *[2]){(a), (b)}, 2, false, NULL) |
| 60 | |
| 61 | #define pthread_mutex_lock_multi(lcks,cnt) pthread_mutex_timedlock_multi_generic((lcks),(cnt),true,NULL) |
| 62 | #define pthread_mutex_timedlock_multi(lcks,cnt,tm) pthread_mutex_timedlock_multi_generic((lcks),(cnt),true,(tm)) |
| 63 | #define pthread_mutex_trylock_multi(lcks,cnt) pthread_mutex_timedlock_multi_generic((lcks),(cnt),false,NULL) |
| 64 | |
| 65 | int pthread_mutex_timedlock_multi_generic(pthread_mutex_t **lck, int cnt, bool block, const struct timespec *restrict abs_timeout); |
| 66 | |
| 67 | |
| 68 | #endif //__PTHREAD_EXTRA_H__ |