|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_event.h>
|
|
|
10
|
|
|
11
|
|
|
12 ngx_thread_volatile ngx_event_t *ngx_posted_events;
|
|
|
13
|
|
|
14 #if (NGX_THREADS)
|
|
|
15 ngx_mutex_t *ngx_posted_events_mutex;
|
|
|
16 #endif
|
|
|
17
|
|
|
18
|
|
|
19 void ngx_event_process_posted(ngx_cycle_t *cycle)
|
|
|
20 {
|
|
|
21 ngx_event_t *ev;
|
|
|
22
|
|
|
23 for ( ;; ) {
|
|
|
24
|
|
|
25 ev = (ngx_event_t *) ngx_posted_events;
|
|
|
26
|
|
|
27 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
28 "posted event %p", ev);
|
|
0
|
29
|
|
|
30 if (ev == NULL) {
|
|
|
31 return;
|
|
|
32 }
|
|
|
33
|
|
|
34 ngx_delete_posted_event(ev);
|
|
|
35
|
|
|
36 ev->event_handler(ev);
|
|
|
37 }
|
|
|
38 }
|
|
|
39
|
|
|
40
|
|
10
|
41 #if (NGX_THREADS) && !(NGX_WIN32)
|
|
0
|
42
|
|
|
43 void ngx_wakeup_worker_thread(ngx_cycle_t *cycle)
|
|
|
44 {
|
|
|
45 ngx_int_t i;
|
|
|
46 ngx_uint_t busy;
|
|
|
47 ngx_event_t *ev;
|
|
|
48
|
|
|
49 #if 0
|
|
|
50 busy = 1;
|
|
|
51
|
|
|
52 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
53 return;
|
|
|
54 }
|
|
|
55
|
|
|
56 for (ev = (ngx_event_t *) ngx_posted_events; ev; ev = ev->next) {
|
|
|
57 if (*(ev->lock) == 0) {
|
|
|
58 busy = 0;
|
|
|
59 break;
|
|
|
60 }
|
|
|
61 }
|
|
|
62
|
|
|
63 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
64
|
|
|
65 if (busy) {
|
|
|
66 return;
|
|
|
67 }
|
|
|
68 #endif
|
|
|
69
|
|
|
70 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
71 if (ngx_threads[i].state == NGX_THREAD_FREE) {
|
|
|
72 ngx_cond_signal(ngx_threads[i].cv);
|
|
|
73 return;
|
|
|
74 }
|
|
|
75 }
|
|
|
76 }
|
|
|
77
|
|
|
78
|
|
|
79 ngx_int_t ngx_event_thread_process_posted(ngx_cycle_t *cycle)
|
|
|
80 {
|
|
|
81 ngx_event_t *ev;
|
|
|
82
|
|
|
83 for ( ;; ) {
|
|
|
84
|
|
|
85 ev = (ngx_event_t *) ngx_posted_events;
|
|
|
86
|
|
|
87 for ( ;; ) {
|
|
|
88
|
|
|
89 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
90 "posted event %p", ev);
|
|
0
|
91
|
|
|
92 if (ev == NULL) {
|
|
|
93 return NGX_OK;
|
|
|
94 }
|
|
|
95
|
|
|
96 if (ngx_trylock(ev->lock) == 0) {
|
|
|
97
|
|
|
98 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
99 "posted event %p is busy", ev);
|
|
0
|
100
|
|
|
101 ev = ev->next;
|
|
|
102 continue;
|
|
|
103 }
|
|
|
104
|
|
|
105 if (ev->lock != ev->own_lock) {
|
|
|
106 if (*(ev->own_lock)) {
|
|
|
107 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
10
|
108 "the own lock of the posted event %p is busy", ev);
|
|
0
|
109 ngx_unlock(ev->lock);
|
|
|
110 ev = ev->next;
|
|
|
111 continue;
|
|
|
112 }
|
|
|
113 *(ev->own_lock) = 1;
|
|
|
114 }
|
|
|
115
|
|
|
116 ngx_delete_posted_event(ev);
|
|
|
117
|
|
|
118 ev->locked = 1;
|
|
|
119
|
|
|
120 ev->ready |= ev->posted_ready;
|
|
|
121 ev->timedout |= ev->posted_timedout;
|
|
|
122 ev->pending_eof |= ev->posted_eof;
|
|
|
123 #if (HAVE_KQUEUE)
|
|
|
124 ev->kq_errno |= ev->posted_errno;
|
|
|
125 #endif
|
|
|
126 if (ev->posted_available) {
|
|
|
127 ev->available = ev->posted_available;
|
|
|
128 }
|
|
|
129
|
|
|
130 ev->posted_ready = 0;
|
|
|
131 ev->posted_timedout = 0;
|
|
|
132 ev->posted_eof = 0;
|
|
|
133 #if (HAVE_KQUEUE)
|
|
|
134 ev->posted_errno = 0;
|
|
|
135 #endif
|
|
|
136 ev->posted_available = 0;
|
|
|
137
|
|
|
138 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
139
|
|
|
140 ev->event_handler(ev);
|
|
|
141
|
|
|
142 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
143 return NGX_ERROR;
|
|
|
144 }
|
|
|
145
|
|
|
146 if (ev->locked) {
|
|
|
147 ngx_unlock(ev->lock);
|
|
|
148
|
|
|
149 if (ev->lock != ev->own_lock) {
|
|
|
150 ngx_unlock(ev->own_lock);
|
|
|
151 }
|
|
|
152 }
|
|
|
153
|
|
|
154 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
155 "posted event %p is done", ev);
|
|
0
|
156
|
|
|
157 break;
|
|
|
158 }
|
|
|
159 }
|
|
|
160 }
|
|
|
161
|
|
|
162 #else
|
|
|
163
|
|
|
164 void ngx_wakeup_worker_thread(ngx_cycle_t *cycle)
|
|
|
165 {
|
|
|
166 }
|
|
|
167
|
|
|
168 #endif
|
