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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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260
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5 */
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6
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7
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8 #ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
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9 #define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_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_http.h>
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15
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16
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17 typedef struct {
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18 struct sockaddr *sockaddr;
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19 socklen_t socklen;
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20 ngx_str_t name;
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21
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22 ngx_int_t current_weight;
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23 ngx_int_t weight;
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24
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25 ngx_uint_t fails;
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26 time_t accessed;
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27 time_t checked;
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28
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29 ngx_uint_t max_fails;
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30 time_t fail_timeout;
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31
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32 ngx_uint_t down; /* unsigned down:1; */
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33
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324
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34 #if (NGX_HTTP_SSL)
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35 ngx_ssl_session_t *ssl_session; /* local to a process */
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36 #endif
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37 } ngx_http_upstream_rr_peer_t;
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38
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39
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326
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40 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t;
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41
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42 struct ngx_http_upstream_rr_peers_s {
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43 ngx_uint_t single; /* unsigned single:1; */
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44 ngx_uint_t number;
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45 ngx_uint_t last_cached;
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46
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47 /* ngx_mutex_t *mutex; */
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48 ngx_connection_t **cached;
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49
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50 ngx_str_t *name;
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51
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52 ngx_http_upstream_rr_peers_t *next;
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53
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54 ngx_http_upstream_rr_peer_t peer[1];
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55 };
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56
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57
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58 typedef struct {
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59 ngx_http_upstream_rr_peers_t *peers;
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60 ngx_uint_t current;
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61 uintptr_t *tried;
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62 uintptr_t data;
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63 } ngx_http_upstream_rr_peer_data_t;
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64
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65
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66 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
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67 ngx_http_upstream_srv_conf_t *us);
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68 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
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69 ngx_http_upstream_srv_conf_t *us);
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70 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
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71 ngx_http_upstream_resolved_t *ur);
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72 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
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73 void *data);
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74 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
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75 void *data, ngx_uint_t state);
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76
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77 #if (NGX_HTTP_SSL)
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318
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78 ngx_int_t
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79 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
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80 void *data);
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81 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
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260
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82 void *data);
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83 #endif
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84
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85
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86 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */
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