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annotate src/os/unix/ngx_thread.h @ 270:7bb9562216ce

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nginx-0.0.2-2004-02-25-23:16:15 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 25 Feb 2004 20:16:15 +0000
parents 83205e0b5522
children e16dfb9b9afa
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5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
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1 #ifndef _NGX_THREAD_H_INCLUDED_
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2 #define _NGX_THREAD_H_INCLUDED_
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5 #include <ngx_config.h>
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6 #include <ngx_core.h>
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8 #if (NGX_THREADS)
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10 #if (NGX_USE_RFORK)
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12 #include <sys/ipc.h>
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13 #include <sys/sem.h>
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14 #include <sched.h>
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16 typedef pid_t ngx_tid_t;
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18 #define TID_T_FMT PID_T_FMT
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20 #define ngx_log_tid 0
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22 #undef ngx_log_pid
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23 #define ngx_log_pid ngx_thread_self()
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26 #define NGX_MUTEX_LIGHT 1
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27 #define NGX_MUTEX_CV 2
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29 #define NGX_MUTEX_LOCK_BUSY 0x80000000
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31 typedef volatile struct {
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32 ngx_atomic_t lock;
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33 ngx_log_t *log;
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34 int semid;
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35 } ngx_mutex_t;
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38 #else /* use pthreads */
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40 #include <pthread.h>
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42 typedef pthread_t ngx_tid_t;
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44 #define ngx_log_tid ngx_thread_self()
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46 #endif
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49 ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle);
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50 int ngx_create_thread(ngx_tid_t *tid, int (*func)(void *arg), void *arg,
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51 ngx_log_t *log);
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52 ngx_tid_t ngx_thread_self();
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54 ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, uint flags);
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55 void ngx_mutex_done(ngx_mutex_t *m);
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57 #define ngx_mutex_trylock(m) ngx_mutex_do_lock(m, 1)
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58 #define ngx_mutex_lock(m) ngx_mutex_do_lock(m, 0)
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59 ngx_int_t ngx_mutex_do_lock(ngx_mutex_t *m, ngx_int_t try);
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60 ngx_int_t ngx_mutex_unlock(ngx_mutex_t *m);
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63 #else /* !NGX_THREADS */
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65 #define ngx_log_tid 0
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66 #define TID_T_FMT "%d"
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68 #define ngx_mutex_lock(m)
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69 #define ngx_mutex_unlock(m)
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71 #endif
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74 #endif /* _NGX_THREAD_H_INCLUDED_ */