Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_sendfile.c @ 0:4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
The first code that uses "ngx_" prefix, the previous one used "gx_" prefix.
At that point the code is not yet usable. The first draft ideas are dated
back to 23.10.2001.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 06 Aug 2002 16:39:45 +0000 |
parents | |
children | 34a521b1a148 |
rev | line source |
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0
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_types.h> |
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4 #include <ngx_errno.h> |
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5 #include <ngx_log.h> |
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6 #include <ngx_sendv.h> |
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7 #include <ngx_sendfile.h> |
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8 |
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9 /* |
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10 TODO: |
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11 various flags |
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12 TransmitPackets |
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13 */ |
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14 |
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15 /* |
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16 returns |
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17 0 done |
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18 -1 error |
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19 */ |
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20 |
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21 #if (HAVE_WIN32_TRANSMITFILE) |
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22 |
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23 int ngx_sendfile(ngx_socket_t s, |
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24 ngx_iovec_t *headers, int hdr_cnt, |
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25 ngx_file_t fd, off_t offset, size_t nbytes, |
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26 ngx_iovec_t *trailers, int trl_cnt, |
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27 off_t *sent, |
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28 ngx_log_t *log) |
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29 { |
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30 int tfrc, rc; |
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31 ngx_err_t tf_err, err; |
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32 OVERLAPPED olp; |
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33 TRANSMIT_FILE_BUFFERS tfb, *ptfb; |
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34 |
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35 tf_err = 0; |
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36 err = 0; |
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37 |
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38 olp.Internal = 0; |
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39 olp.InternalHigh = 0; |
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40 olp.Offset = (DWORD) offset; |
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41 olp.OffsetHigh = (DWORD) (offset >> 32); |
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42 olp.hEvent = NULL; |
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43 |
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44 if (headers || trailers) { |
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45 tfb.Head = headers->ngx_iov_base; |
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46 tfb.HeadLength = headers->ngx_iov_len; |
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47 tfb.Tail = trailers->ngx_iov_base; |
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48 tfb.TailLength = trailers->ngx_iov_len; |
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49 ptfb = &tfb; |
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50 |
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51 } else { |
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52 ptfb = NULL; |
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53 } |
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54 |
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55 tfrc = TransmitFile(s, fd, nbytes, 0, &olp, ptfb, 0); |
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56 |
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57 if (tfrc == 0) |
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58 tf_err = ngx_socket_errno; |
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59 |
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60 /* set sent */ |
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61 rc = WSAGetOverlappedResult(s, &olp, (unsigned long *) sent, 0, NULL); |
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62 |
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63 ngx_log_debug(log, "ngx_sendfile: %d, @%qd %d:%qd" _ |
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64 tfrc _ offset _ nbytes _ *sent); |
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65 |
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66 if (rc == 0) { |
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67 err = ngx_socket_errno; |
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68 ngx_log_error(NGX_LOG_ERR, log, err, |
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69 "ngx_sendfile: WSAGetOverlappedResult failed"); |
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70 } |
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71 |
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72 if (tfrc == 0) { |
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73 if (tf_err != NGX_EAGAIN) { |
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74 ngx_log_error(NGX_LOG_ERR, log, tf_err, |
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75 "ngx_sendfile: TransmitFile failed"); |
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76 return -1; |
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77 } |
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78 |
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79 ngx_log_error(NGX_LOG_INFO, log, tf_err, |
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80 "ngx_sendfile: TransmitFile sent only %qd bytes", *sent); |
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81 } |
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82 |
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83 if (rc == 0) |
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84 return -1; |
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85 |
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86 return 0; |
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87 } |
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88 |
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89 #endif |