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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #ifndef _NGX_HTTP_BUSY_LOCK_H_INCLUDED_
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8 #define _NGX_HTTP_BUSY_LOCK_H_INCLUDED_
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9
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10
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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13 #include <ngx_event.h>
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14 #include <ngx_http.h>
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15
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16
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17 typedef struct {
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18 u_char *md5_mask;
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19 char *md5;
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20 int cachable;
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21
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22 int busy;
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23 int max_busy;
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24
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25 int waiting;
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26 int max_waiting;
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27
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28 time_t timeout;
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29
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30 ngx_event_mutex_t *mutex;
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31 } ngx_http_busy_lock_t;
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32
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33
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34 typedef struct {
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35 time_t time;
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36 ngx_event_t *event;
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37 void (*event_handler)(ngx_event_t *ev);
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38 u_char *md5;
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39 int slot;
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40 } ngx_http_busy_lock_ctx_t;
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41
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42
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43 int ngx_http_busy_lock(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc);
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44 int ngx_http_busy_lock_cachable(ngx_http_busy_lock_t *bl,
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45 ngx_http_busy_lock_ctx_t *bc, int lock);
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46 void ngx_http_busy_unlock(ngx_http_busy_lock_t *bl,
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47 ngx_http_busy_lock_ctx_t *bc);
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48
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49 char *ngx_http_set_busy_lock_slot(ngx_conf_t *cf, ngx_command_t *cmd,
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50 void *conf);
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51
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52
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53 #endif /* _NGX_HTTP_BUSY_LOCK_H_INCLUDED_ */
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