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Annotation of embedaddon/nginx/src/os/unix/ngx_thread.h, revision 1.1

1.1     ! misho       1: 
        !             2: /*
        !             3:  * Copyright (C) Igor Sysoev
        !             4:  * Copyright (C) Nginx, Inc.
        !             5:  */
        !             6: 
        !             7: 
        !             8: #ifndef _NGX_THREAD_H_INCLUDED_
        !             9: #define _NGX_THREAD_H_INCLUDED_
        !            10: 
        !            11: 
        !            12: #include <ngx_config.h>
        !            13: #include <ngx_core.h>
        !            14: 
        !            15: #if (NGX_THREADS)
        !            16: 
        !            17: #define NGX_MAX_THREADS      128
        !            18: 
        !            19: #if (NGX_USE_RFORK)
        !            20: #include <ngx_freebsd_rfork_thread.h>
        !            21: 
        !            22: 
        !            23: #else /* use pthreads */
        !            24: 
        !            25: #include <pthread.h>
        !            26: 
        !            27: typedef pthread_t                    ngx_tid_t;
        !            28: 
        !            29: #define ngx_thread_self()            pthread_self()
        !            30: #define ngx_log_tid                  (int) ngx_thread_self()
        !            31: 
        !            32: #if (NGX_FREEBSD) && !(NGX_LINUXTHREADS)
        !            33: #define NGX_TID_T_FMT                "%p"
        !            34: #else
        !            35: #define NGX_TID_T_FMT                "%d"
        !            36: #endif
        !            37: 
        !            38: 
        !            39: typedef pthread_key_t                ngx_tls_key_t;
        !            40: 
        !            41: #define ngx_thread_key_create(key)   pthread_key_create(key, NULL)
        !            42: #define ngx_thread_key_create_n      "pthread_key_create()"
        !            43: #define ngx_thread_set_tls           pthread_setspecific
        !            44: #define ngx_thread_set_tls_n         "pthread_setspecific()"
        !            45: #define ngx_thread_get_tls           pthread_getspecific
        !            46: 
        !            47: 
        !            48: #define NGX_MUTEX_LIGHT     0
        !            49: 
        !            50: typedef struct {
        !            51:     pthread_mutex_t   mutex;
        !            52:     ngx_log_t        *log;
        !            53: } ngx_mutex_t;
        !            54: 
        !            55: typedef struct {
        !            56:     pthread_cond_t    cond;
        !            57:     ngx_log_t        *log;
        !            58: } ngx_cond_t;
        !            59: 
        !            60: #define ngx_thread_sigmask     pthread_sigmask
        !            61: #define ngx_thread_sigmask_n  "pthread_sigmask()"
        !            62: 
        !            63: #define ngx_thread_join(t, p)  pthread_join(t, p)
        !            64: 
        !            65: #define ngx_setthrtitle(n)
        !            66: 
        !            67: 
        !            68: 
        !            69: ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m);
        !            70: void ngx_mutex_lock(ngx_mutex_t *m);
        !            71: void ngx_mutex_unlock(ngx_mutex_t *m);
        !            72: 
        !            73: #endif
        !            74: 
        !            75: 
        !            76: #define ngx_thread_volatile   volatile
        !            77: 
        !            78: 
        !            79: typedef struct {
        !            80:     ngx_tid_t    tid;
        !            81:     ngx_cond_t  *cv;
        !            82:     ngx_uint_t   state;
        !            83: } ngx_thread_t;
        !            84: 
        !            85: #define NGX_THREAD_FREE   1
        !            86: #define NGX_THREAD_BUSY   2
        !            87: #define NGX_THREAD_EXIT   3
        !            88: #define NGX_THREAD_DONE   4
        !            89: 
        !            90: extern ngx_int_t              ngx_threads_n;
        !            91: extern volatile ngx_thread_t  ngx_threads[NGX_MAX_THREADS];
        !            92: 
        !            93: 
        !            94: typedef void *  ngx_thread_value_t;
        !            95: 
        !            96: ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle);
        !            97: ngx_err_t ngx_create_thread(ngx_tid_t *tid,
        !            98:     ngx_thread_value_t (*func)(void *arg), void *arg, ngx_log_t *log);
        !            99: 
        !           100: ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags);
        !           101: void ngx_mutex_destroy(ngx_mutex_t *m);
        !           102: 
        !           103: 
        !           104: ngx_cond_t *ngx_cond_init(ngx_log_t *log);
        !           105: void ngx_cond_destroy(ngx_cond_t *cv);
        !           106: ngx_int_t ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m);
        !           107: ngx_int_t ngx_cond_signal(ngx_cond_t *cv);
        !           108: 
        !           109: 
        !           110: #else /* !NGX_THREADS */
        !           111: 
        !           112: #define ngx_thread_volatile
        !           113: 
        !           114: #define ngx_log_tid           0
        !           115: #define NGX_TID_T_FMT         "%d"
        !           116: 
        !           117: #define ngx_mutex_trylock(m)  NGX_OK
        !           118: #define ngx_mutex_lock(m)
        !           119: #define ngx_mutex_unlock(m)
        !           120: 
        !           121: #define ngx_cond_signal(cv)
        !           122: 
        !           123: #define ngx_thread_main()     1
        !           124: 
        !           125: #endif
        !           126: 
        !           127: 
        !           128: #endif /* _NGX_THREAD_H_INCLUDED_ */