1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#ifndef _NGX_THREAD_H_INCLUDED_
#define _NGX_THREAD_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#if (NGX_OLD_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_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);
void ngx_mutex_lock(ngx_mutex_t *m);
void 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];
typedef void * ngx_thread_value_t;
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,
ngx_thread_value_t (*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_OLD_THREADS */
#define ngx_thread_volatile
#if (NGX_THREADS)
#include <pthread.h>
typedef pthread_mutex_t ngx_thread_mutex_t;
ngx_int_t ngx_thread_mutex_create(ngx_thread_mutex_t *mtx, ngx_log_t *log);
ngx_int_t ngx_thread_mutex_destroy(ngx_thread_mutex_t *mtx, ngx_log_t *log);
ngx_int_t ngx_thread_mutex_lock(ngx_thread_mutex_t *mtx, ngx_log_t *log);
ngx_int_t ngx_thread_mutex_unlock(ngx_thread_mutex_t *mtx, ngx_log_t *log);
typedef pthread_cond_t ngx_thread_cond_t;
ngx_int_t ngx_thread_cond_create(ngx_thread_cond_t *cond, ngx_log_t *log);
ngx_int_t ngx_thread_cond_destroy(ngx_thread_cond_t *cond, ngx_log_t *log);
ngx_int_t ngx_thread_cond_signal(ngx_thread_cond_t *cond, ngx_log_t *log);
ngx_int_t ngx_thread_cond_wait(ngx_thread_cond_t *cond, ngx_thread_mutex_t *mtx,
ngx_log_t *log);
#if (NGX_LINUX)
typedef pid_t ngx_tid_t;
#define NGX_TID_T_FMT "%P"
#elif (NGX_FREEBSD)
typedef uint32_t ngx_tid_t;
#define NGX_TID_T_FMT "%uD"
#elif (NGX_DARWIN)
typedef uint64_t ngx_tid_t;
#define NGX_TID_T_FMT "%uA"
#else
typedef uint64_t ngx_tid_t;
#define NGX_TID_T_FMT "%uA"
#endif
ngx_tid_t ngx_thread_tid(void);
#define ngx_log_tid ngx_thread_tid()
#else
#define ngx_log_tid 0
#define NGX_TID_T_FMT "%d"
#endif
#define ngx_mutex_trylock(m) NGX_OK
#define ngx_mutex_lock(m)
#define ngx_mutex_unlock(m)
#define ngx_cond_signal(cv)
#define ngx_thread_main() 1
#endif
#endif /* _NGX_THREAD_H_INCLUDED_ */
|
