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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #ifndef _NGX_EVENT_POSTED_H_INCLUDED_
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9 #define _NGX_EVENT_POSTED_H_INCLUDED_
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10
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_event.h>
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15
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16
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112
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17 #if (NGX_THREADS)
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18 extern ngx_mutex_t *ngx_posted_events_mutex;
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19 #endif
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20
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21
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22 #define ngx_locked_post_event(ev, queue) \
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23 \
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24 if (ev->prev == NULL) { \
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25 ev->next = (ngx_event_t *) *queue; \
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26 ev->prev = (ngx_event_t **) queue; \
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27 *queue = ev; \
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28 \
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29 if (ev->next) { \
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30 ev->next->prev = &ev->next; \
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31 } \
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32 \
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33 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "post event %p", ev); \
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34 \
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35 } else { \
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36 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, \
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37 "update posted event %p", ev); \
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38 }
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39
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40
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41 #define ngx_post_event(ev, queue) \
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42 \
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43 ngx_mutex_lock(ngx_posted_events_mutex); \
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44 ngx_locked_post_event(ev, queue); \
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45 ngx_mutex_unlock(ngx_posted_events_mutex);
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46
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47
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48 #define ngx_delete_posted_event(ev) \
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49 \
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50 *(ev->prev) = ev->next; \
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51 \
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52 if (ev->next) { \
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53 ev->next->prev = ev->prev; \
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54 } \
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55 \
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56 ev->prev = NULL; \
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57 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, \
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58 "delete posted event %p", ev);
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59
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60
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61
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62 void ngx_event_process_posted(ngx_cycle_t *cycle,
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63 ngx_thread_volatile ngx_event_t **posted);
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64 void ngx_wakeup_worker_thread(ngx_cycle_t *cycle);
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65
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66 #if (NGX_THREADS)
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67 ngx_int_t ngx_event_thread_process_posted(ngx_cycle_t *cycle);
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68 #endif
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69
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70
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71 extern ngx_thread_volatile ngx_event_t *ngx_posted_accept_events;
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72 extern ngx_thread_volatile ngx_event_t *ngx_posted_events;
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73
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74
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75 #endif /* _NGX_EVENT_POSTED_H_INCLUDED_ */
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