Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_wsarecv_chain.c @ 441:da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 28 Sep 2004 08:34:51 +0000 |
parents | 6bdf858bff8c |
children | 42d11f017717 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) 2002-2004 Igor Sysoev |
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 |
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11 |
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12 ssize_t ngx_wsarecv_chain(ngx_connection_t *c, ngx_chain_t *chain) |
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13 { |
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14 int rc; |
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15 u_char *prev; |
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16 u_long bytes, flags; |
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17 size_t size; |
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18 WSABUF *wsabuf; |
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19 ngx_err_t err; |
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20 ngx_array_t io; |
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21 ngx_event_t *rev; |
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22 |
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23 prev = NULL; |
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24 wsabuf = NULL; |
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25 flags = 0; |
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26 size = 0; |
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27 bytes = 0; |
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28 |
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29 ngx_init_array(io, c->pool, 10, sizeof(WSABUF), NGX_ERROR); |
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30 |
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31 /* coalesce the neighbouring bufs */ |
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32 |
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33 while (chain) { |
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34 if (prev == chain->buf->last) { |
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35 wsabuf->len += chain->buf->end - chain->buf->last; |
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36 |
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37 } else { |
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38 ngx_test_null(wsabuf, ngx_push_array(&io), NGX_ERROR); |
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39 wsabuf->buf = (char *) chain->buf->last; |
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40 wsabuf->len = chain->buf->end - chain->buf->last; |
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41 } |
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42 |
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43 size += chain->buf->end - chain->buf->last; |
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44 prev = chain->buf->end; |
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45 chain = chain->next; |
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46 } |
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47 |
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48 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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49 "WSARecv: %d:%d", io.nelts, wsabuf->len); |
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50 |
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51 |
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52 rc = WSARecv(c->fd, io.elts, io.nelts, &bytes, &flags, NULL, NULL); |
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53 |
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54 rev = c->read; |
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55 |
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56 if (rc == -1) { |
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57 rev->ready = 0; |
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58 err = ngx_socket_errno; |
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59 |
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60 if (err == WSAEWOULDBLOCK) { |
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61 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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62 "WSARecv() not ready"); |
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63 return NGX_AGAIN; |
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64 } |
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65 |
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66 rev->error = 1; |
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67 ngx_connection_error(c, err, "WSARecv() failed"); |
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68 return NGX_ERROR; |
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69 } |
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70 |
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71 if (bytes < size) { |
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72 rev->ready = 0; |
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73 } |
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74 |
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75 if (bytes == 0) { |
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76 rev->eof = 1; |
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77 } |
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78 |
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79 return bytes; |
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80 } |