Mercurial > hg > nginx-quic
annotate src/event/ngx_event_connect.c @ 86:3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 12 May 2003 15:52:24 +0000 |
parents | |
children | cd54bcbaf3b5 |
rev | line source |
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86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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1 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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2 #include <ngx_event_connect.h> |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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3 |
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4 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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5 int ngx_event_connect_peer(ngx_connect_peer_t *cp) |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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6 { |
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7 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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8 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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9 if (cp->peers->number > 1) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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10 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
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11 /* it's a first try - get current peer */ |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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12 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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13 if (cp->tries == cp->peers->number) { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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14 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
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15 /* Here is the race condition |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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16 when the peers are shared between |
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nginx-0.0.1-2003-05-12-19:52:24 import
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17 the threads or the processes but it should not be serious */ |
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nginx-0.0.1-2003-05-12-19:52:24 import
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18 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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19 cp->cur_peer = cp->peers->current++; |
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20 |
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21 if (cp->peers->current >= cp->peers->number) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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22 cp->peers->current = 0; |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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23 } |
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24 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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25 /* */ |
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26 |
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27 #if (NGX_MULTITHREADED || NGX_MULTIPROCESSED) |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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28 /* eliminate the sequences of the race condition */ |
3973260705cc
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29 if (cp->cur_peer >= cp->peers->number) { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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30 cp->cur_peer = 0; |
3973260705cc
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31 } |
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nginx-0.0.1-2003-05-12-19:52:24 import
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32 #endif |
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33 } |
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34 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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35 if (cp->peers->max_fails > 0) { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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36 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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37 for ( ;; ) { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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38 peer = &cp->peers->peers[cp->cur_peer]; |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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39 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
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40 /* Here is the race condition |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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41 when the peers are shared between |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
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42 the threads or the processes but it should not be serious */ |
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nginx-0.0.1-2003-05-12-19:52:24 import
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43 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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44 if (peer->fails <= cp->peers->max_fails |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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45 || (now - peer->accessed > cp->peers->fail_timeout)) |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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46 { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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47 break; |
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nginx-0.0.1-2003-05-12-19:52:24 import
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48 } |
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nginx-0.0.1-2003-05-12-19:52:24 import
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49 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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50 /* */ |
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nginx-0.0.1-2003-05-12-19:52:24 import
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51 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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52 cp->cur_peer++; |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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53 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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54 if (cp->cur_peer >= cp->peers->number) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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55 cp->cur_peer = 0; |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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56 } |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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57 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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58 cp->tries--; |
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nginx-0.0.1-2003-05-12-19:52:24 import
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59 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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60 if (cp->tries == 0) { |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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61 return NGX_ERROR; |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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62 } |
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nginx-0.0.1-2003-05-12-19:52:24 import
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63 } |
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nginx-0.0.1-2003-05-12-19:52:24 import
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64 } |
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nginx-0.0.1-2003-05-12-19:52:24 import
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65 } |
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66 |
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67 |
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68 |
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69 |
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70 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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71 s = ngx_socket(AF_INET, SOCK_STREAM, IPPROTO_IP, 0); |
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72 |
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73 if (s == -1) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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74 ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, |
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nginx-0.0.1-2003-05-12-19:52:24 import
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75 ngx_socket_n " failed"); |
3973260705cc
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76 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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77 } |
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78 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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79 if (cn->rcvbuf) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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80 if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, |
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81 (const void *) &cn->rcvbuf, sizeof(int)) == -1) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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82 ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, |
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83 "setsockopt(SO_RCVBUF) failed"); |
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84 |
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85 if (ngx_close_socket(s) == -1) { |
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86 ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, |
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87 ngx_close_socket_n " failed"); |
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88 } |
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89 |
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90 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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91 } |
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92 } |
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93 |
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94 if (ngx_nonblocking(s) == -1) { |
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nginx-0.0.1-2003-05-12-19:52:24 import
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95 ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, |
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nginx-0.0.1-2003-05-12-19:52:24 import
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96 ngx_nonblocking_n " failed"); |
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97 |
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98 if (ngx_close_socket(s) == -1) { |
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99 ngx_log_error(NGX_LOG_ALERT, cn->log, ngx_socket_errno, |
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100 ngx_close_socket_n " failed"); |
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101 } |
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102 |
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103 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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nginx-0.0.1-2003-05-12-19:52:24 import
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104 } |
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105 |
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nginx-0.0.1-2003-05-12-19:52:24 import
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106 c = &ngx_connections[s]; |
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nginx-0.0.1-2003-05-12-19:52:24 import
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107 rev = &ngx_read_events[s]; |
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108 wev = &ngx_write_events[s]; |
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109 |
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110 instance = rev->instance; |
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111 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
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112 ngx_memzero(c, sizeof(ngx_connection_t)); |
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113 ngx_memzero(rev, sizeof(ngx_event_t)); |
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114 ngx_memzero(wev, sizeof(ngx_event_t)); |
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115 |
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116 rev->index = wev->index = NGX_INVALID_INDEX; |
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117 rev->data = wev->data = c; |
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118 c->read = rev; |
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119 c->write = wev; |
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120 |
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121 rev->instance = wev->instance = !instance; |
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122 |
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123 rev->log = wev->log = c->log = cn->log; |
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124 c->fd = s; |
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125 wev->close_handler = rev->close_handler = ngx_event_close_connection; |
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126 |