Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy.c @ 418:cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 08 Sep 2004 05:18:51 +0000 |
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children | 47709bff4468 |
rev | line source |
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418
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nginx-0.0.10-2004-09-08-09:18:51 import
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1 |
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nginx-0.0.10-2004-09-08-09:18:51 import
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_event.h> |
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5 #include <ngx_imap.h> |
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6 |
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7 |
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nginx-0.0.10-2004-09-08-09:18:51 import
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8 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); |
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9 |
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10 |
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11 void ngx_imap_proxy_handler(ngx_event_t *ev) |
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12 { |
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13 ssize_t n; |
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14 ngx_buf_t *b; |
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15 ngx_uint_t data, do_write; |
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16 ngx_connection_t *c, *src, *dst; |
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17 ngx_imap_session_t *s; |
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18 |
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19 c = ev->data; |
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20 s = c->data; |
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21 |
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22 if (c == s->connection) { |
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23 src = c; |
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24 dst = s->proxy->connection; |
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25 b = s->proxy->downstream_buffer; |
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26 |
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27 } else { |
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28 src = s->proxy->connection; |
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29 dst = c; |
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30 b = s->proxy->upstream_buffer; |
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31 } |
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32 |
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33 do_write = ev->write ? 1 : 0; |
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34 |
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35 do { |
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36 data = 0; |
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37 |
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38 if (do_write == 1) { |
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39 if (dst->write->ready && b->pos < b->last) { |
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40 n = ngx_send(dst, b->pos, b->last - b->pos); |
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41 |
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42 if (n == NGX_ERROR) { |
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43 ngx_imap_proxy_close_session(s); |
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44 return; |
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45 } |
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46 |
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47 if (n > 0) { |
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48 data = 1; |
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49 b->pos += n; |
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50 |
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51 if (b->pos == b->last) { |
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52 b->pos = b->start; |
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53 b->last = b->start; |
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54 } |
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55 } |
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56 } |
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57 } |
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58 |
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59 if (src->read->ready && b->last < b->end) { |
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60 n = ngx_recv(src, b->last, b->end - b->last); |
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61 |
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62 if (n == NGX_ERROR || n == 0) { |
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63 ngx_imap_proxy_close_session(s); |
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64 return; |
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65 } |
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66 |
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67 if (n > 0) { |
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68 data = 1; |
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69 do_write = 1; |
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70 b->last += n; |
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71 } |
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72 } |
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73 |
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74 } while (data); |
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75 } |
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76 |
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77 |
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78 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
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79 { |
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80 } |