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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_THREAD_H_INCLUDED_
#define _NGX_THREAD_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#if (NGX_THREADS)
#define NGX_MAX_THREADS 128
#if (NGX_USE_RFORK)
#include <ngx_freebsd_rfork_thread.h>
#else /* use pthreads */
#include <pthread.h>
typedef pthread_t ngx_tid_t;
#define ngx_thread_self() pthread_self()
#define ngx_log_tid (int) ngx_thread_self()
#if (NGX_FREEBSD) && !(NGX_LINUXTHREADS)
#define NGX_TID_T_FMT "%p"
#else
#define NGX_TID_T_FMT "%d"
#endif
typedef pthread_key_t ngx_tls_key_t;
#define ngx_thread_key_create(key) pthread_key_create(key, NULL)
#define ngx_thread_key_create_n "pthread_key_create()"
#define ngx_thread_set_tls pthread_setspecific
#define ngx_thread_set_tls_n "pthread_setspecific()"
#define ngx_thread_get_tls pthread_getspecific
#define NGX_MUTEX_LIGHT 0
typedef struct {
pthread_mutex_t mutex;
ngx_log_t *log;
} ngx_mutex_t;
typedef struct {
pthread_cond_t cond;
ngx_tid_t tid;
ngx_log_t *log;
} ngx_cond_t;
#define ngx_thread_sigmask pthread_sigmask
#define ngx_thread_sigmask_n "pthread_sigmask()"
#define ngx_thread_join(t, p) pthread_join(t, p)
#define ngx_setthrtitle(n)
ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m);
ngx_int_t ngx_mutex_lock(ngx_mutex_t *m);
ngx_int_t ngx_mutex_unlock(ngx_mutex_t *m);
#endif
#define ngx_thread_volatile volatile
typedef struct {
ngx_tid_t tid;
ngx_cond_t *cv;
ngx_uint_t state;
} ngx_thread_t;
#define NGX_THREAD_FREE 1
#define NGX_THREAD_BUSY 2
#define NGX_THREAD_EXIT 3
#define NGX_THREAD_DONE 4
extern ngx_int_t ngx_threads_n;
extern volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle);
ngx_err_t ngx_create_thread(ngx_tid_t *tid, void* (*func)(void *arg), void *arg,
ngx_log_t *log);
ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags);
void ngx_mutex_destroy(ngx_mutex_t *m);
ngx_cond_t *ngx_cond_init(ngx_log_t *log);
void ngx_cond_destroy(ngx_cond_t *cv);
ngx_int_t ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m);
ngx_int_t ngx_cond_signal(ngx_cond_t *cv);
#else /* !NGX_THREADS */
#define ngx_thread_volatile
#define ngx_log_tid 0
#define NGX_TID_T_FMT "%d"
#define ngx_mutex_trylock(m) NGX_OK
#define ngx_mutex_lock(m) NGX_OK
#define ngx_mutex_unlock(m)
#define ngx_cond_signal(cv)
#define ngx_thread_main() 1
#endif
#endif /* _NGX_THREAD_H_INCLUDED_ */
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