3 * Copyright (C) Igor Sysoev
7 #ifndef _NGX_THREAD_H_INCLUDED_
8 #define _NGX_THREAD_H_INCLUDED_
11 #include <ngx_config.h>
16 #define NGX_MAX_THREADS 128
19 #include <ngx_freebsd_rfork_thread.h>
22 #else /* use pthreads */
26 typedef pthread_t ngx_tid_t;
28 #define ngx_thread_self() pthread_self()
29 #define ngx_log_tid (int) ngx_thread_self()
31 #if (NGX_FREEBSD) && !(NGX_LINUXTHREADS)
32 #define NGX_TID_T_FMT "%p"
34 #define NGX_TID_T_FMT "%d"
38 typedef pthread_key_t ngx_tls_key_t;
40 #define ngx_thread_key_create(key) pthread_key_create(key, NULL)
41 #define ngx_thread_key_create_n "pthread_key_create()"
42 #define ngx_thread_set_tls pthread_setspecific
43 #define ngx_thread_set_tls_n "pthread_setspecific()"
44 #define ngx_thread_get_tls pthread_getspecific
47 #define NGX_MUTEX_LIGHT 0
50 pthread_mutex_t mutex;
59 #define ngx_thread_sigmask pthread_sigmask
60 #define ngx_thread_sigmask_n "pthread_sigmask()"
62 #define ngx_thread_join(t, p) pthread_join(t, p)
64 #define ngx_setthrtitle(n)
68 ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m);
69 void ngx_mutex_lock(ngx_mutex_t *m);
70 void ngx_mutex_unlock(ngx_mutex_t *m);
75 #define ngx_thread_volatile volatile
84 #define NGX_THREAD_FREE 1
85 #define NGX_THREAD_BUSY 2
86 #define NGX_THREAD_EXIT 3
87 #define NGX_THREAD_DONE 4
89 extern ngx_int_t ngx_threads_n;
90 extern volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
93 typedef void * ngx_thread_value_t;
95 ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle);
96 ngx_err_t ngx_create_thread(ngx_tid_t *tid,
97 ngx_thread_value_t (*func)(void *arg), void *arg, ngx_log_t *log);
99 ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags);
100 void ngx_mutex_destroy(ngx_mutex_t *m);
103 ngx_cond_t *ngx_cond_init(ngx_log_t *log);
104 void ngx_cond_destroy(ngx_cond_t *cv);
105 ngx_int_t ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m);
106 ngx_int_t ngx_cond_signal(ngx_cond_t *cv);
109 #else /* !NGX_THREADS */
111 #define ngx_thread_volatile
113 #define ngx_log_tid 0
114 #define NGX_TID_T_FMT "%d"
116 #define ngx_mutex_trylock(m) NGX_OK
117 #define ngx_mutex_lock(m)
118 #define ngx_mutex_unlock(m)
120 #define ngx_cond_signal(cv)
122 #define ngx_thread_main() 1
128 #endif /* _NGX_THREAD_H_INCLUDED_ */